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## 6.4.0 (2019-11-26)
### New features
Add a static `acorn` property to the `Parser` class that contains the entire module interface, to allow plugins to access the instance of the library that they are acting on.
## 6.3.0 (2019-08-12)
### New features
`sourceType: "module"` can now be used even when `ecmaVersion` is less than 6, to parse module-style code that otherwise conforms to an older standard.
## 6.2.1 (2019-07-21)
### Bug fixes
Fix bug causing Acorn to treat some characters as identifier characters that shouldn't be treated as such.
Fix issue where setting the `allowReserved` option to `"never"` allowed reserved words in some circumstances.
## 6.2.0 (2019-07-04)
### Bug fixes
Improve valid assignment checking in `for`/`in` and `for`/`of` loops.
Disallow binding `let` in patterns.
### New features
Support bigint syntax with `ecmaVersion` >= 10.
Support dynamic `import` syntax with `ecmaVersion` >= 10.
Upgrade to Unicode version 12.
## 6.1.1 (2019-02-27)
### Bug fixes
Fix bug that caused parsing default exports of with names to fail.
## 6.1.0 (2019-02-08)
### Bug fixes
Fix scope checking when redefining a `var` as a lexical binding.
### New features
Split up `parseSubscripts` to use an internal `parseSubscript` method to make it easier to extend with plugins.
## 6.0.7 (2019-02-04)
### Bug fixes
Check that exported bindings are defined.
Don't treat `\u180e` as a whitespace character.
Check for duplicate parameter names in methods.
Don't allow shorthand properties when they are generators or async methods.
Forbid binding `await` in async arrow function's parameter list.
## 6.0.6 (2019-01-30)
### Bug fixes
The content of class declarations and expressions is now always parsed in strict mode.
Don't allow `let` or `const` to bind the variable name `let`.
Treat class declarations as lexical.
Don't allow a generator function declaration as the sole body of an `if` or `else`.
Ignore `"use strict"` when after an empty statement.
Allow string line continuations with special line terminator characters.
Treat `for` bodies as part of the `for` scope when checking for conflicting bindings.
Fix bug with parsing `yield` in a `for` loop initializer.
Implement special cases around scope checking for functions.
## 6.0.5 (2019-01-02)
### Bug fixes
Fix TypeScript type for `Parser.extend` and add `allowAwaitOutsideFunction` to options type.
Don't treat `let` as a keyword when the next token is `{` on the next line.
Fix bug that broke checking for parentheses around an object pattern in a destructuring assignment when `preserveParens` was on.
## 6.0.4 (2018-11-05)
### Bug fixes
Further improvements to tokenizing regular expressions in corner cases.
## 6.0.3 (2018-11-04)
### Bug fixes
Fix bug in tokenizing an expression-less return followed by a function followed by a regular expression.
Remove stray symlink in the package tarball.
## 6.0.2 (2018-09-26)
### Bug fixes
Fix bug where default expressions could fail to parse inside an object destructuring assignment expression.
## 6.0.1 (2018-09-14)
### Bug fixes
Fix wrong value in `version` export.
## 6.0.0 (2018-09-14)
### Bug fixes
Better handle variable-redefinition checks for catch bindings and functions directly under if statements.
Forbid `new.target` in top-level arrow functions.
Fix issue with parsing a regexp after `yield` in some contexts.
### New features
The package now comes with TypeScript definitions.
### Breaking changes
The default value of the `ecmaVersion` option is now 9 (2018).
Plugins work differently, and will have to be rewritten to work with this version.
The loose parser and walker have been moved into separate packages (`acorn-loose` and `acorn-walk`).
## 5.7.3 (2018-09-10)
### Bug fixes
Fix failure to tokenize regexps after expressions like `x.of`.
Better error message for unterminated template literals.
## 5.7.2 (2018-08-24)
### Bug fixes
Properly handle `allowAwaitOutsideFunction` in for statements.
Treat function declarations at the top level of modules like let bindings.
Don't allow async function declarations as the only statement under a label.
## 5.7.0 (2018-06-15)
### New features
Upgraded to Unicode 11.
## 5.6.0 (2018-05-31)
### New features
Allow U+2028 and U+2029 in string when ECMAVersion >= 10.
Allow binding-less catch statements when ECMAVersion >= 10.
Add `allowAwaitOutsideFunction` option for parsing top-level `await`.
## 5.5.3 (2018-03-08)
### Bug fixes
A _second_ republish of the code in 5.5.1, this time with yarn, to hopefully get valid timestamps.
## 5.5.2 (2018-03-08)
### Bug fixes
A republish of the code in 5.5.1 in an attempt to solve an issue with the file timestamps in the npm package being 0.
## 5.5.1 (2018-03-06)
### Bug fixes
Fix misleading error message for octal escapes in template strings.
## 5.5.0 (2018-02-27)
### New features
The identifier character categorization is now based on Unicode version 10.
Acorn will now validate the content of regular expressions, including new ES9 features.
## 5.4.0 (2018-02-01)
### Bug fixes
Disallow duplicate or escaped flags on regular expressions.
Disallow octal escapes in strings in strict mode.
### New features
Add support for async iteration.
Add support for object spread and rest.
## 5.3.0 (2017-12-28)
### Bug fixes
Fix parsing of floating point literals with leading zeroes in loose mode.
Allow duplicate property names in object patterns.
Don't allow static class methods named `prototype`.
Disallow async functions directly under `if` or `else`.
Parse right-hand-side of `for`/`of` as an assignment expression.
Stricter parsing of `for`/`in`.
Don't allow unicode escapes in contextual keywords.
### New features
Parsing class members was factored into smaller methods to allow plugins to hook into it.
## 5.2.1 (2017-10-30)
### Bug fixes
Fix a token context corruption bug.
## 5.2.0 (2017-10-30)
### Bug fixes
Fix token context tracking for `class` and `function` in property-name position.
Make sure `%*` isn't parsed as a valid operator.
Allow shorthand properties `get` and `set` to be followed by default values.
Disallow `super` when not in callee or object position.
### New features
Support [`directive` property](https://github.com/estree/estree/compare/b3de58c9997504d6fba04b72f76e6dd1619ee4eb...1da8e603237144f44710360f8feb7a9977e905e0) on directive expression statements.
## 5.1.2 (2017-09-04)
### Bug fixes
Disable parsing of legacy HTML-style comments in modules.
Fix parsing of async methods whose names are keywords.
## 5.1.1 (2017-07-06)
### Bug fixes
Fix problem with disambiguating regexp and division after a class.
## 5.1.0 (2017-07-05)
### Bug fixes
Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`.
Parse zero-prefixed numbers with non-octal digits as decimal.
Allow object/array patterns in rest parameters.
Don't error when `yield` is used as a property name.
Allow `async` as a shorthand object property.
### New features
Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9.
## 5.0.3 (2017-04-01)
### Bug fixes
Fix spurious duplicate variable definition errors for named functions.
## 5.0.2 (2017-03-30)
### Bug fixes
A binary operator after a parenthesized arrow expression is no longer incorrectly treated as an error.
## 5.0.0 (2017-03-28)
### Bug fixes
Raise an error for duplicated lexical bindings.
Fix spurious error when an assignement expression occurred after a spread expression.
Accept regular expressions after `of` (in `for`/`of`), `yield` (in a generator), and braced arrow functions.
Allow labels in front or `var` declarations, even in strict mode.
### Breaking changes
Parse declarations following `export default` as declaration nodes, not expressions. This means that class and function declarations nodes can now have `null` as their `id`.
## 4.0.11 (2017-02-07)
### Bug fixes
Allow all forms of member expressions to be parenthesized as lvalue.
## 4.0.10 (2017-02-07)
### Bug fixes
Don't expect semicolons after default-exported functions or classes, even when they are expressions.
Check for use of `'use strict'` directives in non-simple parameter functions, even when already in strict mode.
## 4.0.9 (2017-02-06)
### Bug fixes
Fix incorrect error raised for parenthesized simple assignment targets, so that `(x) = 1` parses again.
## 4.0.8 (2017-02-03)
### Bug fixes
Solve spurious parenthesized pattern errors by temporarily erring on the side of accepting programs that our delayed errors don't handle correctly yet.
## 4.0.7 (2017-02-02)
### Bug fixes
Accept invalidly rejected code like `(x).y = 2` again.
Don't raise an error when a function _inside_ strict code has a non-simple parameter list.
## 4.0.6 (2017-02-02)
### Bug fixes
Fix exponential behavior (manifesting itself as a complete hang for even relatively small source files) introduced by the new 'use strict' check.
## 4.0.5 (2017-02-02)
### Bug fixes
Disallow parenthesized pattern expressions.
Allow keywords as export names.
Don't allow the `async` keyword to be parenthesized.
Properly raise an error when a keyword contains a character escape.
Allow `"use strict"` to appear after other string literal expressions.
Disallow labeled declarations.
## 4.0.4 (2016-12-19)
### Bug fixes
Fix crash when `export` was followed by a keyword that can't be
exported.
## 4.0.3 (2016-08-16)
### Bug fixes
Allow regular function declarations inside single-statement `if` branches in loose mode. Forbid them entirely in strict mode.
Properly parse properties named `async` in ES2017 mode.
Fix bug where reserved words were broken in ES2017 mode.
## 4.0.2 (2016-08-11)
### Bug fixes
Don't ignore period or 'e' characters after octal numbers.
Fix broken parsing for call expressions in default parameter values of arrow functions.
## 4.0.1 (2016-08-08)
### Bug fixes
Fix false positives in duplicated export name errors.
## 4.0.0 (2016-08-07)
### Breaking changes
The default `ecmaVersion` option value is now 7.
A number of internal method signatures changed, so plugins might need to be updated.
### Bug fixes
The parser now raises errors on duplicated export names.
`arguments` and `eval` can now be used in shorthand properties.
Duplicate parameter names in non-simple argument lists now always produce an error.
### New features
The `ecmaVersion` option now also accepts year-style version numbers
(2015, etc).
Support for `async`/`await` syntax when `ecmaVersion` is >= 8.
Support for trailing commas in call expressions when `ecmaVersion` is >= 8.
## 3.3.0 (2016-07-25)
### Bug fixes
Fix bug in tokenizing of regexp operator after a function declaration.
Fix parser crash when parsing an array pattern with a hole.
### New features
Implement check against complex argument lists in functions that enable strict mode in ES7.
## 3.2.0 (2016-06-07)
### Bug fixes
Improve handling of lack of unicode regexp support in host
environment.
Properly reject shorthand properties whose name is a keyword.
### New features
Visitors created with `visit.make` now have their base as _prototype_, rather than copying properties into a fresh object.
## 3.1.0 (2016-04-18)
### Bug fixes
Properly tokenize the division operator directly after a function expression.
Allow trailing comma in destructuring arrays.
## 3.0.4 (2016-02-25)
### Fixes
Allow update expressions as left-hand-side of the ES7 exponential operator.
## 3.0.2 (2016-02-10)
### Fixes
Fix bug that accidentally made `undefined` a reserved word when parsing ES7.
## 3.0.0 (2016-02-10)
### Breaking changes
The default value of the `ecmaVersion` option is now 6 (used to be 5).
Support for comprehension syntax (which was dropped from the draft spec) has been removed.
### Fixes
`let` and `yield` are now “contextual keywords”, meaning you can mostly use them as identifiers in ES5 non-strict code.
A parenthesized class or function expression after `export default` is now parsed correctly.
### New features
When `ecmaVersion` is set to 7, Acorn will parse the exponentiation operator (`**`).
The identifier character ranges are now based on Unicode 8.0.0.
Plugins can now override the `raiseRecoverable` method to override the way non-critical errors are handled.
## 2.7.0 (2016-01-04)
### Fixes
Stop allowing rest parameters in setters.
Disallow `y` rexexp flag in ES5.
Disallow `\00` and `\000` escapes in strict mode.
Raise an error when an import name is a reserved word.
## 2.6.2 (2015-11-10)
### Fixes
Don't crash when no options object is passed.
## 2.6.0 (2015-11-09)
### Fixes
Add `await` as a reserved word in module sources.
Disallow `yield` in a parameter default value for a generator.
Forbid using a comma after a rest pattern in an array destructuring.
### New features
Support parsing stdin in command-line tool.
## 2.5.0 (2015-10-27)
### Fixes
Fix tokenizer support in the command-line tool.
Stop allowing `new.target` outside of functions.
Remove legacy `guard` and `guardedHandler` properties from try nodes.
Stop allowing multiple `__proto__` properties on an object literal in strict mode.
Don't allow rest parameters to be non-identifier patterns.
Check for duplicate paramter names in arrow functions.

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Copyright (C) 2012-2018 by various contributors (see AUTHORS)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# Acorn
A tiny, fast JavaScript parser written in JavaScript.
## Community
Acorn is open source software released under an
[MIT license](https://github.com/acornjs/acorn/blob/master/acorn/LICENSE).
You are welcome to
[report bugs](https://github.com/acornjs/acorn/issues) or create pull
requests on [github](https://github.com/acornjs/acorn). For questions
and discussion, please use the
[Tern discussion forum](https://discuss.ternjs.net).
## Installation
The easiest way to install acorn is from [`npm`](https://www.npmjs.com/):
```sh
npm install acorn
```
Alternately, you can download the source and build acorn yourself:
```sh
git clone https://github.com/acornjs/acorn.git
cd acorn
npm install
```
## Interface
**parse**`(input, options)` is the main interface to the library. The
`input` parameter is a string, `options` can be undefined or an object
setting some of the options listed below. The return value will be an
abstract syntax tree object as specified by the [ESTree
spec](https://github.com/estree/estree).
```javascript
let acorn = require("acorn");
console.log(acorn.parse("1 + 1"));
```
When encountering a syntax error, the parser will raise a
`SyntaxError` object with a meaningful message. The error object will
have a `pos` property that indicates the string offset at which the
error occurred, and a `loc` object that contains a `{line, column}`
object referring to that same position.
Options can be provided by passing a second argument, which should be
an object containing any of these fields:
- **ecmaVersion**: Indicates the ECMAScript version to parse. Must be
either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial
support). This influences support for strict mode, the set of
reserved words, and support for new syntax features. Default is 9.
**NOTE**: Only 'stage 4' (finalized) ECMAScript features are being
implemented by Acorn. Other proposed new features can be implemented
through plugins.
- **sourceType**: Indicate the mode the code should be parsed in. Can be
either `"script"` or `"module"`. This influences global strict mode
and parsing of `import` and `export` declarations.
**NOTE**: If set to `"module"`, then static `import` / `export` syntax
will be valid, even if `ecmaVersion` is less than 6.
- **onInsertedSemicolon**: If given a callback, that callback will be
called whenever a missing semicolon is inserted by the parser. The
callback will be given the character offset of the point where the
semicolon is inserted as argument, and if `locations` is on, also a
`{line, column}` object representing this position.
- **onTrailingComma**: Like `onInsertedSemicolon`, but for trailing
commas.
- **allowReserved**: If `false`, using a reserved word will generate
an error. Defaults to `true` for `ecmaVersion` 3, `false` for higher
versions. When given the value `"never"`, reserved words and
keywords can also not be used as property names (as in Internet
Explorer's old parser).
- **allowReturnOutsideFunction**: By default, a return statement at
the top level raises an error. Set this to `true` to accept such
code.
- **allowImportExportEverywhere**: By default, `import` and `export`
declarations can only appear at a program's top level. Setting this
option to `true` allows them anywhere where a statement is allowed.
- **allowAwaitOutsideFunction**: By default, `await` expressions can
only appear inside `async` functions. Setting this option to
`true` allows to have top-level `await` expressions. They are
still not allowed in non-`async` functions, though.
- **allowHashBang**: When this is enabled (off by default), if the
code starts with the characters `#!` (as in a shellscript), the
first line will be treated as a comment.
- **locations**: When `true`, each node has a `loc` object attached
with `start` and `end` subobjects, each of which contains the
one-based line and zero-based column numbers in `{line, column}`
form. Default is `false`.
- **onToken**: If a function is passed for this option, each found
token will be passed in same format as tokens returned from
`tokenizer().getToken()`.
If array is passed, each found token is pushed to it.
Note that you are not allowed to call the parser from the
callback—that will corrupt its internal state.
- **onComment**: If a function is passed for this option, whenever a
comment is encountered the function will be called with the
following parameters:
- `block`: `true` if the comment is a block comment, false if it
is a line comment.
- `text`: The content of the comment.
- `start`: Character offset of the start of the comment.
- `end`: Character offset of the end of the comment.
When the `locations` options is on, the `{line, column}` locations
of the comments start and end are passed as two additional
parameters.
If array is passed for this option, each found comment is pushed
to it as object in Esprima format:
```javascript
{
"type": "Line" | "Block",
"value": "comment text",
"start": Number,
"end": Number,
// If `locations` option is on:
"loc": {
"start": {line: Number, column: Number}
"end": {line: Number, column: Number}
},
// If `ranges` option is on:
"range": [Number, Number]
}
```
Note that you are not allowed to call the parser from the
callback—that will corrupt its internal state.
- **ranges**: Nodes have their start and end characters offsets
recorded in `start` and `end` properties (directly on the node,
rather than the `loc` object, which holds line/column data. To also
add a
[semi-standardized](https://bugzilla.mozilla.org/show_bug.cgi?id=745678)
`range` property holding a `[start, end]` array with the same
numbers, set the `ranges` option to `true`.
- **program**: It is possible to parse multiple files into a single
AST by passing the tree produced by parsing the first file as the
`program` option in subsequent parses. This will add the toplevel
forms of the parsed file to the "Program" (top) node of an existing
parse tree.
- **sourceFile**: When the `locations` option is `true`, you can pass
this option to add a `source` attribute in every nodes `loc`
object. Note that the contents of this option are not examined or
processed in any way; you are free to use whatever format you
choose.
- **directSourceFile**: Like `sourceFile`, but a `sourceFile` property
will be added (regardless of the `location` option) directly to the
nodes, rather than the `loc` object.
- **preserveParens**: If this option is `true`, parenthesized expressions
are represented by (non-standard) `ParenthesizedExpression` nodes
that have a single `expression` property containing the expression
inside parentheses.
**parseExpressionAt**`(input, offset, options)` will parse a single
expression in a string, and return its AST. It will not complain if
there is more of the string left after the expression.
**tokenizer**`(input, options)` returns an object with a `getToken`
method that can be called repeatedly to get the next token, a `{start,
end, type, value}` object (with added `loc` property when the
`locations` option is enabled and `range` property when the `ranges`
option is enabled). When the token's type is `tokTypes.eof`, you
should stop calling the method, since it will keep returning that same
token forever.
In ES6 environment, returned result can be used as any other
protocol-compliant iterable:
```javascript
for (let token of acorn.tokenizer(str)) {
// iterate over the tokens
}
// transform code to array of tokens:
var tokens = [...acorn.tokenizer(str)];
```
**tokTypes** holds an object mapping names to the token type objects
that end up in the `type` properties of tokens.
**getLineInfo**`(input, offset)` can be used to get a `{line,
column}` object for a given program string and offset.
### The `Parser` class
Instances of the **`Parser`** class contain all the state and logic
that drives a parse. It has static methods `parse`,
`parseExpressionAt`, and `tokenizer` that match the top-level
functions by the same name.
When extending the parser with plugins, you need to call these methods
on the extended version of the class. To extend a parser with plugins,
you can use its static `extend` method.
```javascript
var acorn = require("acorn");
var jsx = require("acorn-jsx");
var JSXParser = acorn.Parser.extend(jsx());
JSXParser.parse("foo(<bar/>)");
```
The `extend` method takes any number of plugin values, and returns a
new `Parser` class that includes the extra parser logic provided by
the plugins.
## Command line interface
The `bin/acorn` utility can be used to parse a file from the command
line. It accepts as arguments its input file and the following
options:
- `--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|--ecma10`: Sets the ECMAScript version
to parse. Default is version 9.
- `--module`: Sets the parsing mode to `"module"`. Is set to `"script"` otherwise.
- `--locations`: Attaches a "loc" object to each node with "start" and
"end" subobjects, each of which contains the one-based line and
zero-based column numbers in `{line, column}` form.
- `--allow-hash-bang`: If the code starts with the characters #! (as
in a shellscript), the first line will be treated as a comment.
- `--compact`: No whitespace is used in the AST output.
- `--silent`: Do not output the AST, just return the exit status.
- `--help`: Print the usage information and quit.
The utility spits out the syntax tree as JSON data.
## Existing plugins
- [`acorn-jsx`](https://github.com/RReverser/acorn-jsx): Parse [Facebook JSX syntax extensions](https://github.com/facebook/jsx)
Plugins for ECMAScript proposals:
- [`acorn-stage3`](https://github.com/acornjs/acorn-stage3): Parse most stage 3 proposals, bundling:
- [`acorn-class-fields`](https://github.com/acornjs/acorn-class-fields): Parse [class fields proposal](https://github.com/tc39/proposal-class-fields)
- [`acorn-import-meta`](https://github.com/acornjs/acorn-import-meta): Parse [import.meta proposal](https://github.com/tc39/proposal-import-meta)
- [`acorn-numeric-separator`](https://github.com/acornjs/acorn-numeric-separator): Parse [numeric separator proposal](https://github.com/tc39/proposal-numeric-separator)
- [`acorn-private-methods`](https://github.com/acornjs/acorn-private-methods): parse [private methods, getters and setters proposal](https://github.com/tc39/proposal-private-methods)n

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#!/usr/bin/env node
'use strict';
require('../dist/bin.js');

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export as namespace acorn
export = acorn
declare namespace acorn {
function parse(input: string, options?: Options): Node
function parseExpressionAt(input: string, pos?: number, options?: Options): Node
function tokenizer(input: string, options?: Options): {
getToken(): Token
[Symbol.iterator](): Iterator<Token>
}
interface Options {
ecmaVersion?: 3 | 5 | 6 | 7 | 8 | 9 | 10 | 2015 | 2016 | 2017 | 2018 | 2019
sourceType?: 'script' | 'module'
onInsertedSemicolon?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
onTrailingComma?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
allowReserved?: boolean | 'never'
allowReturnOutsideFunction?: boolean
allowImportExportEverywhere?: boolean
allowAwaitOutsideFunction?: boolean
allowHashBang?: boolean
locations?: boolean
onToken?: ((token: Token) => any) | Token[]
onComment?: ((
isBlock: boolean, text: string, start: number, end: number, startLoc?: Position,
endLoc?: Position
) => void) | Comment[]
ranges?: boolean
program?: Node
sourceFile?: string
directSourceFile?: string
preserveParens?: boolean
}
class Parser {
constructor(options: Options, input: string, startPos?: number)
parse(this: Parser): Node
static parse(this: typeof Parser, input: string, options?: Options): Node
static parseExpressionAt(this: typeof Parser, input: string, pos: number, options?: Options): Node
static tokenizer(this: typeof Parser, input: string, options?: Options): {
getToken(): Token
[Symbol.iterator](): Iterator<Token>
}
static extend(this: typeof Parser, ...plugins: ((BaseParser: typeof Parser) => typeof Parser)[]): typeof Parser
}
interface Position { line: number; column: number; offset: number }
const defaultOptions: Options
function getLineInfo(input: string, offset: number): Position
class SourceLocation {
start: Position
end: Position
source?: string | null
constructor(p: Parser, start: Position, end: Position)
}
class Node {
type: string
start: number
end: number
loc?: SourceLocation
sourceFile?: string
range?: [number, number]
constructor(parser: Parser, pos: number, loc?: SourceLocation)
}
class TokenType {
label: string
keyword: string
beforeExpr: boolean
startsExpr: boolean
isLoop: boolean
isAssign: boolean
prefix: boolean
postfix: boolean
binop: number
updateContext?: (prevType: TokenType) => void
constructor(label: string, conf?: any)
}
const tokTypes: {
num: TokenType
regexp: TokenType
string: TokenType
name: TokenType
eof: TokenType
bracketL: TokenType
bracketR: TokenType
braceL: TokenType
braceR: TokenType
parenL: TokenType
parenR: TokenType
comma: TokenType
semi: TokenType
colon: TokenType
dot: TokenType
question: TokenType
arrow: TokenType
template: TokenType
ellipsis: TokenType
backQuote: TokenType
dollarBraceL: TokenType
eq: TokenType
assign: TokenType
incDec: TokenType
prefix: TokenType
logicalOR: TokenType
logicalAND: TokenType
bitwiseOR: TokenType
bitwiseXOR: TokenType
bitwiseAND: TokenType
equality: TokenType
relational: TokenType
bitShift: TokenType
plusMin: TokenType
modulo: TokenType
star: TokenType
slash: TokenType
starstar: TokenType
_break: TokenType
_case: TokenType
_catch: TokenType
_continue: TokenType
_debugger: TokenType
_default: TokenType
_do: TokenType
_else: TokenType
_finally: TokenType
_for: TokenType
_function: TokenType
_if: TokenType
_return: TokenType
_switch: TokenType
_throw: TokenType
_try: TokenType
_var: TokenType
_const: TokenType
_while: TokenType
_with: TokenType
_new: TokenType
_this: TokenType
_super: TokenType
_class: TokenType
_extends: TokenType
_export: TokenType
_import: TokenType
_null: TokenType
_true: TokenType
_false: TokenType
_in: TokenType
_instanceof: TokenType
_typeof: TokenType
_void: TokenType
_delete: TokenType
}
class TokContext {
constructor(token: string, isExpr: boolean, preserveSpace: boolean, override?: (p: Parser) => void)
}
const tokContexts: {
b_stat: TokContext
b_expr: TokContext
b_tmpl: TokContext
p_stat: TokContext
p_expr: TokContext
q_tmpl: TokContext
f_expr: TokContext
}
function isIdentifierStart(code: number, astral?: boolean): boolean
function isIdentifierChar(code: number, astral?: boolean): boolean
interface AbstractToken {
}
interface Comment extends AbstractToken {
type: string
value: string
start: number
end: number
loc?: SourceLocation
range?: [number, number]
}
class Token {
type: TokenType
value: any
start: number
end: number
loc?: SourceLocation
range?: [number, number]
constructor(p: Parser)
}
function isNewLine(code: number): boolean
const lineBreak: RegExp
const lineBreakG: RegExp
const version: string
}

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'use strict';
var path = require('path');
var fs = require('fs');
var acorn = require('./acorn.js');
var infile, forceFile, silent = false, compact = false, tokenize = false;
var options = {};
function help(status) {
var print = (status === 0) ? console.log : console.error;
print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
print(" [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]");
process.exit(status);
}
for (var i = 2; i < process.argv.length; ++i) {
var arg = process.argv[i];
if ((arg === "-" || arg[0] !== "-") && !infile) { infile = arg; }
else if (arg === "--" && !infile && i + 2 === process.argv.length) { forceFile = infile = process.argv[++i]; }
else if (arg === "--locations") { options.locations = true; }
else if (arg === "--allow-hash-bang") { options.allowHashBang = true; }
else if (arg === "--silent") { silent = true; }
else if (arg === "--compact") { compact = true; }
else if (arg === "--help") { help(0); }
else if (arg === "--tokenize") { tokenize = true; }
else if (arg === "--module") { options.sourceType = "module"; }
else {
var match = arg.match(/^--ecma(\d+)$/);
if (match)
{ options.ecmaVersion = +match[1]; }
else
{ help(1); }
}
}
function run(code) {
var result;
try {
if (!tokenize) {
result = acorn.parse(code, options);
} else {
result = [];
var tokenizer = acorn.tokenizer(code, options), token;
do {
token = tokenizer.getToken();
result.push(token);
} while (token.type !== acorn.tokTypes.eof)
}
} catch (e) {
console.error(infile && infile !== "-" ? e.message.replace(/\(\d+:\d+\)$/, function (m) { return m.slice(0, 1) + infile + " " + m.slice(1); }) : e.message);
process.exit(1);
}
if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); }
}
if (forceFile || infile && infile !== "-") {
run(fs.readFileSync(infile, "utf8"));
} else {
var code = "";
process.stdin.resume();
process.stdin.on("data", function (chunk) { return code += chunk; });
process.stdin.on("end", function () { return run(code); });
}

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{
"name": "acorn",
"description": "ECMAScript parser",
"homepage": "https://github.com/acornjs/acorn",
"main": "dist/acorn.js",
"module": "dist/acorn.mjs",
"version": "6.4.1",
"engines": {
"node": ">=0.4.0"
},
"maintainers": [
{
"name": "Marijn Haverbeke",
"email": "marijnh@gmail.com",
"web": "https://marijnhaverbeke.nl"
},
{
"name": "Ingvar Stepanyan",
"email": "me@rreverser.com",
"web": "https://rreverser.com/"
},
{
"name": "Adrian Heine",
"web": "http://adrianheine.de"
}
],
"repository": {
"type": "git",
"url": "https://github.com/acornjs/acorn.git"
},
"license": "MIT",
"scripts": {
"prepare": "cd ..; npm run build:main && npm run build:bin"
},
"bin": {
"acorn": "./bin/acorn"
}
}

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The MIT License (MIT)
Copyright (c) 2014-2018, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# braces [![NPM version](https://img.shields.io/npm/v/braces.svg?style=flat)](https://www.npmjs.com/package/braces) [![NPM monthly downloads](https://img.shields.io/npm/dm/braces.svg?style=flat)](https://npmjs.org/package/braces) [![NPM total downloads](https://img.shields.io/npm/dt/braces.svg?style=flat)](https://npmjs.org/package/braces) [![Linux Build Status](https://img.shields.io/travis/micromatch/braces.svg?style=flat&label=Travis)](https://travis-ci.org/micromatch/braces) [![Windows Build Status](https://img.shields.io/appveyor/ci/micromatch/braces.svg?style=flat&label=AppVeyor)](https://ci.appveyor.com/project/micromatch/braces)
> Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.
Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save braces
```
## Why use braces?
Brace patterns are great for matching ranges. Users (and implementors) shouldn't have to think about whether or not they will break their application (or yours) from accidentally defining an aggressive brace pattern. _Braces is the only library that offers a [solution to this problem](#performance)_.
* **Safe(r)**: Braces isn't vulnerable to DoS attacks like [brace-expansion](https://github.com/juliangruber/brace-expansion), [minimatch](https://github.com/isaacs/minimatch) and [multimatch](https://github.com/sindresorhus/multimatch) (a different bug than the [other regex DoS bug](https://medium.com/node-security/minimatch-redos-vulnerability-590da24e6d3c#.jew0b6mpc)).
* **Accurate**: complete support for the [Bash 4.3 Brace Expansion](www.gnu.org/software/bash/) specification (passes all of the Bash braces tests)
* **[fast and performant](#benchmarks)**: Starts fast, runs fast and [scales well](#performance) as patterns increase in complexity.
* **Organized code base**: with parser and compiler that are eas(y|ier) to maintain and update when edge cases crop up.
* **Well-tested**: thousands of test assertions. Passes 100% of the [minimatch](https://github.com/isaacs/minimatch) and [brace-expansion](https://github.com/juliangruber/brace-expansion) unit tests as well (as of the writing of this).
## Usage
The main export is a function that takes one or more brace `patterns` and `options`.
```js
var braces = require('braces');
braces(pattern[, options]);
```
By default, braces returns an optimized regex-source string. To get an array of brace patterns, use `brace.expand()`.
The following section explains the difference in more detail. _(If you're curious about "why" braces does this by default, see [brace matching pitfalls](#brace-matching-pitfalls)_.
### Optimized vs. expanded braces
**Optimized**
By default, patterns are optimized for regex and matching:
```js
console.log(braces('a/{x,y,z}/b'));
//=> ['a/(x|y|z)/b']
```
**Expanded**
To expand patterns the same way as Bash or [minimatch](https://github.com/isaacs/minimatch), use the [.expand](#expand) method:
```js
console.log(braces.expand('a/{x,y,z}/b'));
//=> ['a/x/b', 'a/y/b', 'a/z/b']
```
Or use [options.expand](#optionsexpand):
```js
console.log(braces('a/{x,y,z}/b', {expand: true}));
//=> ['a/x/b', 'a/y/b', 'a/z/b']
```
## Features
* [lists](#lists): Supports "lists": `a/{b,c}/d` => `['a/b/d', 'a/c/d']`
* [sequences](#sequences): Supports alphabetical or numerical "sequences" (ranges): `{1..3}` => `['1', '2', '3']`
* [steps](#steps): Supports "steps" or increments: `{2..10..2}` => `['2', '4', '6', '8', '10']`
* [escaping](#escaping)
* [options](#options)
### Lists
Uses [fill-range](https://github.com/jonschlinkert/fill-range) for expanding alphabetical or numeric lists:
```js
console.log(braces('a/{foo,bar,baz}/*.js'));
//=> ['a/(foo|bar|baz)/*.js']
console.log(braces.expand('a/{foo,bar,baz}/*.js'));
//=> ['a/foo/*.js', 'a/bar/*.js', 'a/baz/*.js']
```
### Sequences
Uses [fill-range](https://github.com/jonschlinkert/fill-range) for expanding alphabetical or numeric ranges (bash "sequences"):
```js
console.log(braces.expand('{1..3}')); // ['1', '2', '3']
console.log(braces.expand('a{01..03}b')); // ['a01b', 'a02b', 'a03b']
console.log(braces.expand('a{1..3}b')); // ['a1b', 'a2b', 'a3b']
console.log(braces.expand('{a..c}')); // ['a', 'b', 'c']
console.log(braces.expand('foo/{a..c}')); // ['foo/a', 'foo/b', 'foo/c']
// supports padded ranges
console.log(braces('a{01..03}b')); //=> [ 'a(0[1-3])b' ]
console.log(braces('a{001..300}b')); //=> [ 'a(0{2}[1-9]|0[1-9][0-9]|[12][0-9]{2}|300)b' ]
```
### Steps
Steps, or increments, may be used with ranges:
```js
console.log(braces.expand('{2..10..2}'));
//=> ['2', '4', '6', '8', '10']
console.log(braces('{2..10..2}'));
//=> ['(2|4|6|8|10)']
```
When the [.optimize](#optimize) method is used, or [options.optimize](#optionsoptimize) is set to true, sequences are passed to [to-regex-range](https://github.com/jonschlinkert/to-regex-range) for expansion.
### Nesting
Brace patterns may be nested. The results of each expanded string are not sorted, and left to right order is preserved.
**"Expanded" braces**
```js
console.log(braces.expand('a{b,c,/{x,y}}/e'));
//=> ['ab/e', 'ac/e', 'a/x/e', 'a/y/e']
console.log(braces.expand('a/{x,{1..5},y}/c'));
//=> ['a/x/c', 'a/1/c', 'a/2/c', 'a/3/c', 'a/4/c', 'a/5/c', 'a/y/c']
```
**"Optimized" braces**
```js
console.log(braces('a{b,c,/{x,y}}/e'));
//=> ['a(b|c|/(x|y))/e']
console.log(braces('a/{x,{1..5},y}/c'));
//=> ['a/(x|([1-5])|y)/c']
```
### Escaping
**Escaping braces**
A brace pattern will not be expanded or evaluted if _either the opening or closing brace is escaped_:
```js
console.log(braces.expand('a\\{d,c,b}e'));
//=> ['a{d,c,b}e']
console.log(braces.expand('a{d,c,b\\}e'));
//=> ['a{d,c,b}e']
```
**Escaping commas**
Commas inside braces may also be escaped:
```js
console.log(braces.expand('a{b\\,c}d'));
//=> ['a{b,c}d']
console.log(braces.expand('a{d\\,c,b}e'));
//=> ['ad,ce', 'abe']
```
**Single items**
Following bash conventions, a brace pattern is also not expanded when it contains a single character:
```js
console.log(braces.expand('a{b}c'));
//=> ['a{b}c']
```
## Options
### options.maxLength
**Type**: `Number`
**Default**: `65,536`
**Description**: Limit the length of the input string. Useful when the input string is generated or your application allows users to pass a string, et cetera.
```js
console.log(braces('a/{b,c}/d', { maxLength: 3 })); //=> throws an error
```
### options.expand
**Type**: `Boolean`
**Default**: `undefined`
**Description**: Generate an "expanded" brace pattern (this option is unncessary with the `.expand` method, which does the same thing).
```js
console.log(braces('a/{b,c}/d', {expand: true}));
//=> [ 'a/b/d', 'a/c/d' ]
```
### options.optimize
**Type**: `Boolean`
**Default**: `true`
**Description**: Enabled by default.
```js
console.log(braces('a/{b,c}/d'));
//=> [ 'a/(b|c)/d' ]
```
### options.nodupes
**Type**: `Boolean`
**Default**: `true`
**Description**: Duplicates are removed by default. To keep duplicates, pass `{nodupes: false}` on the options
### options.rangeLimit
**Type**: `Number`
**Default**: `250`
**Description**: When `braces.expand()` is used, or `options.expand` is true, brace patterns will automatically be [optimized](#optionsoptimize) when the difference between the range minimum and range maximum exceeds the `rangeLimit`. This is to prevent huge ranges from freezing your application.
You can set this to any number, or change `options.rangeLimit` to `Inifinity` to disable this altogether.
**Examples**
```js
// pattern exceeds the "rangeLimit", so it's optimized automatically
console.log(braces.expand('{1..1000}'));
//=> ['([1-9]|[1-9][0-9]{1,2}|1000)']
// pattern does not exceed "rangeLimit", so it's NOT optimized
console.log(braces.expand('{1..100}'));
//=> ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59', '60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '100']
```
### options.transform
**Type**: `Function`
**Default**: `undefined`
**Description**: Customize range expansion.
```js
var range = braces.expand('x{a..e}y', {
transform: function(str) {
return 'foo' + str;
}
});
console.log(range);
//=> [ 'xfooay', 'xfooby', 'xfoocy', 'xfoody', 'xfooey' ]
```
### options.quantifiers
**Type**: `Boolean`
**Default**: `undefined`
**Description**: In regular expressions, quanitifiers can be used to specify how many times a token can be repeated. For example, `a{1,3}` will match the letter `a` one to three times.
Unfortunately, regex quantifiers happen to share the same syntax as [Bash lists](#lists)
The `quantifiers` option tells braces to detect when [regex quantifiers](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#quantifiers) are defined in the given pattern, and not to try to expand them as lists.
**Examples**
```js
var braces = require('braces');
console.log(braces('a/b{1,3}/{x,y,z}'));
//=> [ 'a/b(1|3)/(x|y|z)' ]
console.log(braces('a/b{1,3}/{x,y,z}', {quantifiers: true}));
//=> [ 'a/b{1,3}/(x|y|z)' ]
console.log(braces('a/b{1,3}/{x,y,z}', {quantifiers: true, expand: true}));
//=> [ 'a/b{1,3}/x', 'a/b{1,3}/y', 'a/b{1,3}/z' ]
```
### options.unescape
**Type**: `Boolean`
**Default**: `undefined`
**Description**: Strip backslashes that were used for escaping from the result.
## What is "brace expansion"?
Brace expansion is a type of parameter expansion that was made popular by unix shells for generating lists of strings, as well as regex-like matching when used alongside wildcards (globs).
In addition to "expansion", braces are also used for matching. In other words:
* [brace expansion](#brace-expansion) is for generating new lists
* [brace matching](#brace-matching) is for filtering existing lists
<details>
<summary><strong>More about brace expansion</strong> (click to expand)</summary>
There are two main types of brace expansion:
1. **lists**: which are defined using comma-separated values inside curly braces: `{a,b,c}`
2. **sequences**: which are defined using a starting value and an ending value, separated by two dots: `a{1..3}b`. Optionally, a third argument may be passed to define a "step" or increment to use: `a{1..100..10}b`. These are also sometimes referred to as "ranges".
Here are some example brace patterns to illustrate how they work:
**Sets**
```
{a,b,c} => a b c
{a,b,c}{1,2} => a1 a2 b1 b2 c1 c2
```
**Sequences**
```
{1..9} => 1 2 3 4 5 6 7 8 9
{4..-4} => 4 3 2 1 0 -1 -2 -3 -4
{1..20..3} => 1 4 7 10 13 16 19
{a..j} => a b c d e f g h i j
{j..a} => j i h g f e d c b a
{a..z..3} => a d g j m p s v y
```
**Combination**
Sets and sequences can be mixed together or used along with any other strings.
```
{a,b,c}{1..3} => a1 a2 a3 b1 b2 b3 c1 c2 c3
foo/{a,b,c}/bar => foo/a/bar foo/b/bar foo/c/bar
```
The fact that braces can be "expanded" from relatively simple patterns makes them ideal for quickly generating test fixtures, file paths, and similar use cases.
## Brace matching
In addition to _expansion_, brace patterns are also useful for performing regular-expression-like matching.
For example, the pattern `foo/{1..3}/bar` would match any of following strings:
```
foo/1/bar
foo/2/bar
foo/3/bar
```
But not:
```
baz/1/qux
baz/2/qux
baz/3/qux
```
Braces can also be combined with [glob patterns](https://github.com/jonschlinkert/micromatch) to perform more advanced wildcard matching. For example, the pattern `*/{1..3}/*` would match any of following strings:
```
foo/1/bar
foo/2/bar
foo/3/bar
baz/1/qux
baz/2/qux
baz/3/qux
```
## Brace matching pitfalls
Although brace patterns offer a user-friendly way of matching ranges or sets of strings, there are also some major disadvantages and potential risks you should be aware of.
### tldr
**"brace bombs"**
* brace expansion can eat up a huge amount of processing resources
* as brace patterns increase _linearly in size_, the system resources required to expand the pattern increase exponentially
* users can accidentally (or intentially) exhaust your system's resources resulting in the equivalent of a DoS attack (bonus: no programming knowledge is required!)
For a more detailed explanation with examples, see the [geometric complexity](#geometric-complexity) section.
### The solution
Jump to the [performance section](#performance) to see how Braces solves this problem in comparison to other libraries.
### Geometric complexity
At minimum, brace patterns with sets limited to two elements have quadradic or `O(n^2)` complexity. But the complexity of the algorithm increases exponentially as the number of sets, _and elements per set_, increases, which is `O(n^c)`.
For example, the following sets demonstrate quadratic (`O(n^2)`) complexity:
```
{1,2}{3,4} => (2X2) => 13 14 23 24
{1,2}{3,4}{5,6} => (2X2X2) => 135 136 145 146 235 236 245 246
```
But add an element to a set, and we get a n-fold Cartesian product with `O(n^c)` complexity:
```
{1,2,3}{4,5,6}{7,8,9} => (3X3X3) => 147 148 149 157 158 159 167 168 169 247 248
249 257 258 259 267 268 269 347 348 349 357
358 359 367 368 369
```
Now, imagine how this complexity grows given that each element is a n-tuple:
```
{1..100}{1..100} => (100X100) => 10,000 elements (38.4 kB)
{1..100}{1..100}{1..100} => (100X100X100) => 1,000,000 elements (5.76 MB)
```
Although these examples are clearly contrived, they demonstrate how brace patterns can quickly grow out of control.
**More information**
Interested in learning more about brace expansion?
* [linuxjournal/bash-brace-expansion](http://www.linuxjournal.com/content/bash-brace-expansion)
* [rosettacode/Brace_expansion](https://rosettacode.org/wiki/Brace_expansion)
* [cartesian product](https://en.wikipedia.org/wiki/Cartesian_product)
</details>
## Performance
Braces is not only screaming fast, it's also more accurate the other brace expansion libraries.
### Better algorithms
Fortunately there is a solution to the ["brace bomb" problem](#brace-matching-pitfalls): _don't expand brace patterns into an array when they're used for matching_.
Instead, convert the pattern into an optimized regular expression. This is easier said than done, and braces is the only library that does this currently.
**The proof is in the numbers**
Minimatch gets exponentially slower as patterns increase in complexity, braces does not. The following results were generated using `braces()` and `minimatch.braceExpand()`, respectively.
| **Pattern** | **braces** | **[minimatch](https://github.com/isaacs/minimatch)** |
| --- | --- | --- |
| `{1..9007199254740991}`<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> | `298 B` (5ms 459μs) | N/A (freezes) |
| `{1..1000000000000000}` | `41 B` (1ms 15μs) | N/A (freezes) |
| `{1..100000000000000}` | `40 B` (890μs) | N/A (freezes) |
| `{1..10000000000000}` | `39 B` (2ms 49μs) | N/A (freezes) |
| `{1..1000000000000}` | `38 B` (608μs) | N/A (freezes) |
| `{1..100000000000}` | `37 B` (397μs) | N/A (freezes) |
| `{1..10000000000}` | `35 B` (983μs) | N/A (freezes) |
| `{1..1000000000}` | `34 B` (798μs) | N/A (freezes) |
| `{1..100000000}` | `33 B` (733μs) | N/A (freezes) |
| `{1..10000000}` | `32 B` (5ms 632μs) | `78.89 MB` (16s 388ms 569μs) |
| `{1..1000000}` | `31 B` (1ms 381μs) | `6.89 MB` (1s 496ms 887μs) |
| `{1..100000}` | `30 B` (950μs) | `588.89 kB` (146ms 921μs) |
| `{1..10000}` | `29 B` (1ms 114μs) | `48.89 kB` (14ms 187μs) |
| `{1..1000}` | `28 B` (760μs) | `3.89 kB` (1ms 453μs) |
| `{1..100}` | `22 B` (345μs) | `291 B` (196μs) |
| `{1..10}` | `10 B` (533μs) | `20 B` (37μs) |
| `{1..3}` | `7 B` (190μs) | `5 B` (27μs) |
### Faster algorithms
When you need expansion, braces is still much faster.
_(the following results were generated using `braces.expand()` and `minimatch.braceExpand()`, respectively)_
| **Pattern** | **braces** | **[minimatch](https://github.com/isaacs/minimatch)** |
| --- | --- | --- |
| `{1..10000000}` | `78.89 MB` (2s 698ms 642μs) | `78.89 MB` (18s 601ms 974μs) |
| `{1..1000000}` | `6.89 MB` (458ms 576μs) | `6.89 MB` (1s 491ms 621μs) |
| `{1..100000}` | `588.89 kB` (20ms 728μs) | `588.89 kB` (156ms 919μs) |
| `{1..10000}` | `48.89 kB` (2ms 202μs) | `48.89 kB` (13ms 641μs) |
| `{1..1000}` | `3.89 kB` (1ms 796μs) | `3.89 kB` (1ms 958μs) |
| `{1..100}` | `291 B` (424μs) | `291 B` (211μs) |
| `{1..10}` | `20 B` (487μs) | `20 B` (72μs) |
| `{1..3}` | `5 B` (166μs) | `5 B` (27μs) |
If you'd like to run these comparisons yourself, see [test/support/generate.js](test/support/generate.js).
## Benchmarks
### Running benchmarks
Install dev dependencies:
```bash
npm i -d && npm benchmark
```
### Latest results
```bash
Benchmarking: (8 of 8)
· combination-nested
· combination
· escaped
· list-basic
· list-multiple
· no-braces
· sequence-basic
· sequence-multiple
# benchmark/fixtures/combination-nested.js (52 bytes)
brace-expansion x 4,756 ops/sec ±1.09% (86 runs sampled)
braces x 11,202,303 ops/sec ±1.06% (88 runs sampled)
minimatch x 4,816 ops/sec ±0.99% (87 runs sampled)
fastest is braces
# benchmark/fixtures/combination.js (51 bytes)
brace-expansion x 625 ops/sec ±0.87% (87 runs sampled)
braces x 11,031,884 ops/sec ±0.72% (90 runs sampled)
minimatch x 637 ops/sec ±0.84% (88 runs sampled)
fastest is braces
# benchmark/fixtures/escaped.js (44 bytes)
brace-expansion x 163,325 ops/sec ±1.05% (87 runs sampled)
braces x 10,655,071 ops/sec ±1.22% (88 runs sampled)
minimatch x 147,495 ops/sec ±0.96% (88 runs sampled)
fastest is braces
# benchmark/fixtures/list-basic.js (40 bytes)
brace-expansion x 99,726 ops/sec ±1.07% (83 runs sampled)
braces x 10,596,584 ops/sec ±0.98% (88 runs sampled)
minimatch x 100,069 ops/sec ±1.17% (86 runs sampled)
fastest is braces
# benchmark/fixtures/list-multiple.js (52 bytes)
brace-expansion x 34,348 ops/sec ±1.08% (88 runs sampled)
braces x 9,264,131 ops/sec ±1.12% (88 runs sampled)
minimatch x 34,893 ops/sec ±0.87% (87 runs sampled)
fastest is braces
# benchmark/fixtures/no-braces.js (48 bytes)
brace-expansion x 275,368 ops/sec ±1.18% (89 runs sampled)
braces x 9,134,677 ops/sec ±0.95% (88 runs sampled)
minimatch x 3,755,954 ops/sec ±1.13% (89 runs sampled)
fastest is braces
# benchmark/fixtures/sequence-basic.js (41 bytes)
brace-expansion x 5,492 ops/sec ±1.35% (87 runs sampled)
braces x 8,485,034 ops/sec ±1.28% (89 runs sampled)
minimatch x 5,341 ops/sec ±1.17% (87 runs sampled)
fastest is braces
# benchmark/fixtures/sequence-multiple.js (51 bytes)
brace-expansion x 116 ops/sec ±0.77% (77 runs sampled)
braces x 9,445,118 ops/sec ±1.32% (84 runs sampled)
minimatch x 109 ops/sec ±1.16% (76 runs sampled)
fastest is braces
```
## About
<details>
<summary><strong>Contributing</strong></summary>
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
</details>
<details>
<summary><strong>Running Tests</strong></summary>
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
```sh
$ npm install && npm test
```
</details>
<details>
<summary><strong>Building docs</strong></summary>
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
</details>
### Related projects
You might also be interested in these projects:
* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets "Expand POSIX bracket expressions (character classes) in glob patterns.")
* [extglob](https://www.npmjs.com/package/extglob): Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob… [more](https://github.com/micromatch/extglob) | [homepage](https://github.com/micromatch/extglob "Extended glob support for JavaScript. Adds (almost) the expressive power of regular expressions to glob patterns.")
* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range "Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`")
* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
* [nanomatch](https://www.npmjs.com/package/nanomatch): Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash… [more](https://github.com/micromatch/nanomatch) | [homepage](https://github.com/micromatch/nanomatch "Fast, minimal glob matcher for node.js. Similar to micromatch, minimatch and multimatch, but complete Bash 4.3 wildcard support only (no support for exglobs, posix brackets or braces)")
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 188 | [jonschlinkert](https://github.com/jonschlinkert) |
| 4 | [doowb](https://github.com/doowb) |
| 1 | [es128](https://github.com/es128) |
| 1 | [eush77](https://github.com/eush77) |
| 1 | [hemanth](https://github.com/hemanth) |
### Author
**Jon Schlinkert**
* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on February 17, 2018._
<hr class="footnotes-sep">
<section class="footnotes">
<ol class="footnotes-list">
<li id="fn1" class="footnote-item">this is the largest safe integer allowed in JavaScript. <a href="#fnref1" class="footnote-backref"></a>
</li>
</ol>
</section>

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'use strict';
/**
* Module dependencies
*/
var toRegex = require('to-regex');
var unique = require('array-unique');
var extend = require('extend-shallow');
/**
* Local dependencies
*/
var compilers = require('./lib/compilers');
var parsers = require('./lib/parsers');
var Braces = require('./lib/braces');
var utils = require('./lib/utils');
var MAX_LENGTH = 1024 * 64;
var cache = {};
/**
* Convert the given `braces` pattern into a regex-compatible string. By default, only one string is generated for every input string. Set `options.expand` to true to return an array of patterns (similar to Bash or minimatch. Before using `options.expand`, it's recommended that you read the [performance notes](#performance)).
*
* ```js
* var braces = require('braces');
* console.log(braces('{a,b,c}'));
* //=> ['(a|b|c)']
*
* console.log(braces('{a,b,c}', {expand: true}));
* //=> ['a', 'b', 'c']
* ```
* @param {String} `str`
* @param {Object} `options`
* @return {String}
* @api public
*/
function braces(pattern, options) {
var key = utils.createKey(String(pattern), options);
var arr = [];
var disabled = options && options.cache === false;
if (!disabled && cache.hasOwnProperty(key)) {
return cache[key];
}
if (Array.isArray(pattern)) {
for (var i = 0; i < pattern.length; i++) {
arr.push.apply(arr, braces.create(pattern[i], options));
}
} else {
arr = braces.create(pattern, options);
}
if (options && options.nodupes === true) {
arr = unique(arr);
}
if (!disabled) {
cache[key] = arr;
}
return arr;
}
/**
* Expands a brace pattern into an array. This method is called by the main [braces](#braces) function when `options.expand` is true. Before using this method it's recommended that you read the [performance notes](#performance)) and advantages of using [.optimize](#optimize) instead.
*
* ```js
* var braces = require('braces');
* console.log(braces.expand('a/{b,c}/d'));
* //=> ['a/b/d', 'a/c/d'];
* ```
* @param {String} `pattern` Brace pattern
* @param {Object} `options`
* @return {Array} Returns an array of expanded values.
* @api public
*/
braces.expand = function(pattern, options) {
return braces.create(pattern, extend({}, options, {expand: true}));
};
/**
* Expands a brace pattern into a regex-compatible, optimized string. This method is called by the main [braces](#braces) function by default.
*
* ```js
* var braces = require('braces');
* console.log(braces.expand('a/{b,c}/d'));
* //=> ['a/(b|c)/d']
* ```
* @param {String} `pattern` Brace pattern
* @param {Object} `options`
* @return {Array} Returns an array of expanded values.
* @api public
*/
braces.optimize = function(pattern, options) {
return braces.create(pattern, options);
};
/**
* Processes a brace pattern and returns either an expanded array (if `options.expand` is true), a highly optimized regex-compatible string. This method is called by the main [braces](#braces) function.
*
* ```js
* var braces = require('braces');
* console.log(braces.create('user-{200..300}/project-{a,b,c}-{1..10}'))
* //=> 'user-(20[0-9]|2[1-9][0-9]|300)/project-(a|b|c)-([1-9]|10)'
* ```
* @param {String} `pattern` Brace pattern
* @param {Object} `options`
* @return {Array} Returns an array of expanded values.
* @api public
*/
braces.create = function(pattern, options) {
if (typeof pattern !== 'string') {
throw new TypeError('expected a string');
}
var maxLength = (options && options.maxLength) || MAX_LENGTH;
if (pattern.length >= maxLength) {
throw new Error('expected pattern to be less than ' + maxLength + ' characters');
}
function create() {
if (pattern === '' || pattern.length < 3) {
return [pattern];
}
if (utils.isEmptySets(pattern)) {
return [];
}
if (utils.isQuotedString(pattern)) {
return [pattern.slice(1, -1)];
}
var proto = new Braces(options);
var result = !options || options.expand !== true
? proto.optimize(pattern, options)
: proto.expand(pattern, options);
// get the generated pattern(s)
var arr = result.output;
// filter out empty strings if specified
if (options && options.noempty === true) {
arr = arr.filter(Boolean);
}
// filter out duplicates if specified
if (options && options.nodupes === true) {
arr = unique(arr);
}
Object.defineProperty(arr, 'result', {
enumerable: false,
value: result
});
return arr;
}
return memoize('create', pattern, options, create);
};
/**
* Create a regular expression from the given string `pattern`.
*
* ```js
* var braces = require('braces');
*
* console.log(braces.makeRe('id-{200..300}'));
* //=> /^(?:id-(20[0-9]|2[1-9][0-9]|300))$/
* ```
* @param {String} `pattern` The pattern to convert to regex.
* @param {Object} `options`
* @return {RegExp}
* @api public
*/
braces.makeRe = function(pattern, options) {
if (typeof pattern !== 'string') {
throw new TypeError('expected a string');
}
var maxLength = (options && options.maxLength) || MAX_LENGTH;
if (pattern.length >= maxLength) {
throw new Error('expected pattern to be less than ' + maxLength + ' characters');
}
function makeRe() {
var arr = braces(pattern, options);
var opts = extend({strictErrors: false}, options);
return toRegex(arr, opts);
}
return memoize('makeRe', pattern, options, makeRe);
};
/**
* Parse the given `str` with the given `options`.
*
* ```js
* var braces = require('braces');
* var ast = braces.parse('a/{b,c}/d');
* console.log(ast);
* // { type: 'root',
* // errors: [],
* // input: 'a/{b,c}/d',
* // nodes:
* // [ { type: 'bos', val: '' },
* // { type: 'text', val: 'a/' },
* // { type: 'brace',
* // nodes:
* // [ { type: 'brace.open', val: '{' },
* // { type: 'text', val: 'b,c' },
* // { type: 'brace.close', val: '}' } ] },
* // { type: 'text', val: '/d' },
* // { type: 'eos', val: '' } ] }
* ```
* @param {String} `pattern` Brace pattern to parse
* @param {Object} `options`
* @return {Object} Returns an AST
* @api public
*/
braces.parse = function(pattern, options) {
var proto = new Braces(options);
return proto.parse(pattern, options);
};
/**
* Compile the given `ast` or string with the given `options`.
*
* ```js
* var braces = require('braces');
* var ast = braces.parse('a/{b,c}/d');
* console.log(braces.compile(ast));
* // { options: { source: 'string' },
* // state: {},
* // compilers:
* // { eos: [Function],
* // noop: [Function],
* // bos: [Function],
* // brace: [Function],
* // 'brace.open': [Function],
* // text: [Function],
* // 'brace.close': [Function] },
* // output: [ 'a/(b|c)/d' ],
* // ast:
* // { ... },
* // parsingErrors: [] }
* ```
* @param {Object|String} `ast` AST from [.parse](#parse). If a string is passed it will be parsed first.
* @param {Object} `options`
* @return {Object} Returns an object that has an `output` property with the compiled string.
* @api public
*/
braces.compile = function(ast, options) {
var proto = new Braces(options);
return proto.compile(ast, options);
};
/**
* Clear the regex cache.
*
* ```js
* braces.clearCache();
* ```
* @api public
*/
braces.clearCache = function() {
cache = braces.cache = {};
};
/**
* Memoize a generated regex or function. A unique key is generated
* from the method name, pattern, and user-defined options. Set
* options.memoize to false to disable.
*/
function memoize(type, pattern, options, fn) {
var key = utils.createKey(type + ':' + pattern, options);
var disabled = options && options.cache === false;
if (disabled) {
braces.clearCache();
return fn(pattern, options);
}
if (cache.hasOwnProperty(key)) {
return cache[key];
}
var res = fn(pattern, options);
cache[key] = res;
return res;
}
/**
* Expose `Braces` constructor and methods
* @type {Function}
*/
braces.Braces = Braces;
braces.compilers = compilers;
braces.parsers = parsers;
braces.cache = cache;
/**
* Expose `braces`
* @type {Function}
*/
module.exports = braces;

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'use strict';
var extend = require('extend-shallow');
var Snapdragon = require('snapdragon');
var compilers = require('./compilers');
var parsers = require('./parsers');
var utils = require('./utils');
/**
* Customize Snapdragon parser and renderer
*/
function Braces(options) {
this.options = extend({}, options);
}
/**
* Initialize braces
*/
Braces.prototype.init = function(options) {
if (this.isInitialized) return;
this.isInitialized = true;
var opts = utils.createOptions({}, this.options, options);
this.snapdragon = this.options.snapdragon || new Snapdragon(opts);
this.compiler = this.snapdragon.compiler;
this.parser = this.snapdragon.parser;
compilers(this.snapdragon, opts);
parsers(this.snapdragon, opts);
/**
* Call Snapdragon `.parse` method. When AST is returned, we check to
* see if any unclosed braces are left on the stack and, if so, we iterate
* over the stack and correct the AST so that compilers are called in the correct
* order and unbalance braces are properly escaped.
*/
utils.define(this.snapdragon, 'parse', function(pattern, options) {
var parsed = Snapdragon.prototype.parse.apply(this, arguments);
this.parser.ast.input = pattern;
var stack = this.parser.stack;
while (stack.length) {
addParent({type: 'brace.close', val: ''}, stack.pop());
}
function addParent(node, parent) {
utils.define(node, 'parent', parent);
parent.nodes.push(node);
}
// add non-enumerable parser reference
utils.define(parsed, 'parser', this.parser);
return parsed;
});
};
/**
* Decorate `.parse` method
*/
Braces.prototype.parse = function(ast, options) {
if (ast && typeof ast === 'object' && ast.nodes) return ast;
this.init(options);
return this.snapdragon.parse(ast, options);
};
/**
* Decorate `.compile` method
*/
Braces.prototype.compile = function(ast, options) {
if (typeof ast === 'string') {
ast = this.parse(ast, options);
} else {
this.init(options);
}
return this.snapdragon.compile(ast, options);
};
/**
* Expand
*/
Braces.prototype.expand = function(pattern) {
var ast = this.parse(pattern, {expand: true});
return this.compile(ast, {expand: true});
};
/**
* Optimize
*/
Braces.prototype.optimize = function(pattern) {
var ast = this.parse(pattern, {optimize: true});
return this.compile(ast, {optimize: true});
};
/**
* Expose `Braces`
*/
module.exports = Braces;

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'use strict';
var utils = require('./utils');
module.exports = function(braces, options) {
braces.compiler
/**
* bos
*/
.set('bos', function() {
if (this.output) return;
this.ast.queue = isEscaped(this.ast) ? [this.ast.val] : [];
this.ast.count = 1;
})
/**
* Square brackets
*/
.set('bracket', function(node) {
var close = node.close;
var open = !node.escaped ? '[' : '\\[';
var negated = node.negated;
var inner = node.inner;
inner = inner.replace(/\\(?=[\\\w]|$)/g, '\\\\');
if (inner === ']-') {
inner = '\\]\\-';
}
if (negated && inner.indexOf('.') === -1) {
inner += '.';
}
if (negated && inner.indexOf('/') === -1) {
inner += '/';
}
var val = open + negated + inner + close;
var queue = node.parent.queue;
var last = utils.arrayify(queue.pop());
queue.push(utils.join(last, val));
queue.push.apply(queue, []);
})
/**
* Brace
*/
.set('brace', function(node) {
node.queue = isEscaped(node) ? [node.val] : [];
node.count = 1;
return this.mapVisit(node.nodes);
})
/**
* Open
*/
.set('brace.open', function(node) {
node.parent.open = node.val;
})
/**
* Inner
*/
.set('text', function(node) {
var queue = node.parent.queue;
var escaped = node.escaped;
var segs = [node.val];
if (node.optimize === false) {
options = utils.extend({}, options, {optimize: false});
}
if (node.multiplier > 1) {
node.parent.count *= node.multiplier;
}
if (options.quantifiers === true && utils.isQuantifier(node.val)) {
escaped = true;
} else if (node.val.length > 1) {
if (isType(node.parent, 'brace') && !isEscaped(node)) {
var expanded = utils.expand(node.val, options);
segs = expanded.segs;
if (expanded.isOptimized) {
node.parent.isOptimized = true;
}
// if nothing was expanded, we probably have a literal brace
if (!segs.length) {
var val = (expanded.val || node.val);
if (options.unescape !== false) {
// unescape unexpanded brace sequence/set separators
val = val.replace(/\\([,.])/g, '$1');
// strip quotes
val = val.replace(/["'`]/g, '');
}
segs = [val];
escaped = true;
}
}
} else if (node.val === ',') {
if (options.expand) {
node.parent.queue.push(['']);
segs = [''];
} else {
segs = ['|'];
}
} else {
escaped = true;
}
if (escaped && isType(node.parent, 'brace')) {
if (node.parent.nodes.length <= 4 && node.parent.count === 1) {
node.parent.escaped = true;
} else if (node.parent.length <= 3) {
node.parent.escaped = true;
}
}
if (!hasQueue(node.parent)) {
node.parent.queue = segs;
return;
}
var last = utils.arrayify(queue.pop());
if (node.parent.count > 1 && options.expand) {
last = multiply(last, node.parent.count);
node.parent.count = 1;
}
queue.push(utils.join(utils.flatten(last), segs.shift()));
queue.push.apply(queue, segs);
})
/**
* Close
*/
.set('brace.close', function(node) {
var queue = node.parent.queue;
var prev = node.parent.parent;
var last = prev.queue.pop();
var open = node.parent.open;
var close = node.val;
if (open && close && isOptimized(node, options)) {
open = '(';
close = ')';
}
// if a close brace exists, and the previous segment is one character
// don't wrap the result in braces or parens
var ele = utils.last(queue);
if (node.parent.count > 1 && options.expand) {
ele = multiply(queue.pop(), node.parent.count);
node.parent.count = 1;
queue.push(ele);
}
if (close && typeof ele === 'string' && ele.length === 1) {
open = '';
close = '';
}
if ((isLiteralBrace(node, options) || noInner(node)) && !node.parent.hasEmpty) {
queue.push(utils.join(open, queue.pop() || ''));
queue = utils.flatten(utils.join(queue, close));
}
if (typeof last === 'undefined') {
prev.queue = [queue];
} else {
prev.queue.push(utils.flatten(utils.join(last, queue)));
}
})
/**
* eos
*/
.set('eos', function(node) {
if (this.input) return;
if (options.optimize !== false) {
this.output = utils.last(utils.flatten(this.ast.queue));
} else if (Array.isArray(utils.last(this.ast.queue))) {
this.output = utils.flatten(this.ast.queue.pop());
} else {
this.output = utils.flatten(this.ast.queue);
}
if (node.parent.count > 1 && options.expand) {
this.output = multiply(this.output, node.parent.count);
}
this.output = utils.arrayify(this.output);
this.ast.queue = [];
});
};
/**
* Multiply the segments in the current brace level
*/
function multiply(queue, n, options) {
return utils.flatten(utils.repeat(utils.arrayify(queue), n));
}
/**
* Return true if `node` is escaped
*/
function isEscaped(node) {
return node.escaped === true;
}
/**
* Returns true if regex parens should be used for sets. If the parent `type`
* is not `brace`, then we're on a root node, which means we should never
* expand segments and open/close braces should be `{}` (since this indicates
* a brace is missing from the set)
*/
function isOptimized(node, options) {
if (node.parent.isOptimized) return true;
return isType(node.parent, 'brace')
&& !isEscaped(node.parent)
&& options.expand !== true;
}
/**
* Returns true if the value in `node` should be wrapped in a literal brace.
* @return {Boolean}
*/
function isLiteralBrace(node, options) {
return isEscaped(node.parent) || options.optimize !== false;
}
/**
* Returns true if the given `node` does not have an inner value.
* @return {Boolean}
*/
function noInner(node, type) {
if (node.parent.queue.length === 1) {
return true;
}
var nodes = node.parent.nodes;
return nodes.length === 3
&& isType(nodes[0], 'brace.open')
&& !isType(nodes[1], 'text')
&& isType(nodes[2], 'brace.close');
}
/**
* Returns true if the given `node` is the given `type`
* @return {Boolean}
*/
function isType(node, type) {
return typeof node !== 'undefined' && node.type === type;
}
/**
* Returns true if the given `node` has a non-empty queue.
* @return {Boolean}
*/
function hasQueue(node) {
return Array.isArray(node.queue) && node.queue.length;
}

360
node_modules/webpack/node_modules/braces/lib/parsers.js generated vendored Normal file
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'use strict';
var Node = require('snapdragon-node');
var utils = require('./utils');
/**
* Braces parsers
*/
module.exports = function(braces, options) {
braces.parser
.set('bos', function() {
if (!this.parsed) {
this.ast = this.nodes[0] = new Node(this.ast);
}
})
/**
* Character parsers
*/
.set('escape', function() {
var pos = this.position();
var m = this.match(/^(?:\\(.)|\$\{)/);
if (!m) return;
var prev = this.prev();
var last = utils.last(prev.nodes);
var node = pos(new Node({
type: 'text',
multiplier: 1,
val: m[0]
}));
if (node.val === '\\\\') {
return node;
}
if (node.val === '${') {
var str = this.input;
var idx = -1;
var ch;
while ((ch = str[++idx])) {
this.consume(1);
node.val += ch;
if (ch === '\\') {
node.val += str[++idx];
continue;
}
if (ch === '}') {
break;
}
}
}
if (this.options.unescape !== false) {
node.val = node.val.replace(/\\([{}])/g, '$1');
}
if (last.val === '"' && this.input.charAt(0) === '"') {
last.val = node.val;
this.consume(1);
return;
}
return concatNodes.call(this, pos, node, prev, options);
})
/**
* Brackets: "[...]" (basic, this is overridden by
* other parsers in more advanced implementations)
*/
.set('bracket', function() {
var isInside = this.isInside('brace');
var pos = this.position();
var m = this.match(/^(?:\[([!^]?)([^\]]{2,}|\]-)(\]|[^*+?]+)|\[)/);
if (!m) return;
var prev = this.prev();
var val = m[0];
var negated = m[1] ? '^' : '';
var inner = m[2] || '';
var close = m[3] || '';
if (isInside && prev.type === 'brace') {
prev.text = prev.text || '';
prev.text += val;
}
var esc = this.input.slice(0, 2);
if (inner === '' && esc === '\\]') {
inner += esc;
this.consume(2);
var str = this.input;
var idx = -1;
var ch;
while ((ch = str[++idx])) {
this.consume(1);
if (ch === ']') {
close = ch;
break;
}
inner += ch;
}
}
return pos(new Node({
type: 'bracket',
val: val,
escaped: close !== ']',
negated: negated,
inner: inner,
close: close
}));
})
/**
* Empty braces (we capture these early to
* speed up processing in the compiler)
*/
.set('multiplier', function() {
var isInside = this.isInside('brace');
var pos = this.position();
var m = this.match(/^\{((?:,|\{,+\})+)\}/);
if (!m) return;
this.multiplier = true;
var prev = this.prev();
var val = m[0];
if (isInside && prev.type === 'brace') {
prev.text = prev.text || '';
prev.text += val;
}
var node = pos(new Node({
type: 'text',
multiplier: 1,
match: m,
val: val
}));
return concatNodes.call(this, pos, node, prev, options);
})
/**
* Open
*/
.set('brace.open', function() {
var pos = this.position();
var m = this.match(/^\{(?!(?:[^\\}]?|,+)\})/);
if (!m) return;
var prev = this.prev();
var last = utils.last(prev.nodes);
// if the last parsed character was an extglob character
// we need to _not optimize_ the brace pattern because
// it might be mistaken for an extglob by a downstream parser
if (last && last.val && isExtglobChar(last.val.slice(-1))) {
last.optimize = false;
}
var open = pos(new Node({
type: 'brace.open',
val: m[0]
}));
var node = pos(new Node({
type: 'brace',
nodes: []
}));
node.push(open);
prev.push(node);
this.push('brace', node);
})
/**
* Close
*/
.set('brace.close', function() {
var pos = this.position();
var m = this.match(/^\}/);
if (!m || !m[0]) return;
var brace = this.pop('brace');
var node = pos(new Node({
type: 'brace.close',
val: m[0]
}));
if (!this.isType(brace, 'brace')) {
if (this.options.strict) {
throw new Error('missing opening "{"');
}
node.type = 'text';
node.multiplier = 0;
node.escaped = true;
return node;
}
var prev = this.prev();
var last = utils.last(prev.nodes);
if (last.text) {
var lastNode = utils.last(last.nodes);
if (lastNode.val === ')' && /[!@*?+]\(/.test(last.text)) {
var open = last.nodes[0];
var text = last.nodes[1];
if (open.type === 'brace.open' && text && text.type === 'text') {
text.optimize = false;
}
}
}
if (brace.nodes.length > 2) {
var first = brace.nodes[1];
if (first.type === 'text' && first.val === ',') {
brace.nodes.splice(1, 1);
brace.nodes.push(first);
}
}
brace.push(node);
})
/**
* Capture boundary characters
*/
.set('boundary', function() {
var pos = this.position();
var m = this.match(/^[$^](?!\{)/);
if (!m) return;
return pos(new Node({
type: 'text',
val: m[0]
}));
})
/**
* One or zero, non-comma characters wrapped in braces
*/
.set('nobrace', function() {
var isInside = this.isInside('brace');
var pos = this.position();
var m = this.match(/^\{[^,]?\}/);
if (!m) return;
var prev = this.prev();
var val = m[0];
if (isInside && prev.type === 'brace') {
prev.text = prev.text || '';
prev.text += val;
}
return pos(new Node({
type: 'text',
multiplier: 0,
val: val
}));
})
/**
* Text
*/
.set('text', function() {
var isInside = this.isInside('brace');
var pos = this.position();
var m = this.match(/^((?!\\)[^${}[\]])+/);
if (!m) return;
var prev = this.prev();
var val = m[0];
if (isInside && prev.type === 'brace') {
prev.text = prev.text || '';
prev.text += val;
}
var node = pos(new Node({
type: 'text',
multiplier: 1,
val: val
}));
return concatNodes.call(this, pos, node, prev, options);
});
};
/**
* Returns true if the character is an extglob character.
*/
function isExtglobChar(ch) {
return ch === '!' || ch === '@' || ch === '*' || ch === '?' || ch === '+';
}
/**
* Combine text nodes, and calculate empty sets (`{,,}`)
* @param {Function} `pos` Function to calculate node position
* @param {Object} `node` AST node
* @return {Object}
*/
function concatNodes(pos, node, parent, options) {
node.orig = node.val;
var prev = this.prev();
var last = utils.last(prev.nodes);
var isEscaped = false;
if (node.val.length > 1) {
var a = node.val.charAt(0);
var b = node.val.slice(-1);
isEscaped = (a === '"' && b === '"')
|| (a === "'" && b === "'")
|| (a === '`' && b === '`');
}
if (isEscaped && options.unescape !== false) {
node.val = node.val.slice(1, node.val.length - 1);
node.escaped = true;
}
if (node.match) {
var match = node.match[1];
if (!match || match.indexOf('}') === -1) {
match = node.match[0];
}
// replace each set with a single ","
var val = match.replace(/\{/g, ',').replace(/\}/g, '');
node.multiplier *= val.length;
node.val = '';
}
var simpleText = last.type === 'text'
&& last.multiplier === 1
&& node.multiplier === 1
&& node.val;
if (simpleText) {
last.val += node.val;
return;
}
prev.push(node);
}

343
node_modules/webpack/node_modules/braces/lib/utils.js generated vendored Normal file
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'use strict';
var splitString = require('split-string');
var utils = module.exports;
/**
* Module dependencies
*/
utils.extend = require('extend-shallow');
utils.flatten = require('arr-flatten');
utils.isObject = require('isobject');
utils.fillRange = require('fill-range');
utils.repeat = require('repeat-element');
utils.unique = require('array-unique');
utils.define = function(obj, key, val) {
Object.defineProperty(obj, key, {
writable: true,
configurable: true,
enumerable: false,
value: val
});
};
/**
* Returns true if the given string contains only empty brace sets.
*/
utils.isEmptySets = function(str) {
return /^(?:\{,\})+$/.test(str);
};
/**
* Returns true if the given string contains only empty brace sets.
*/
utils.isQuotedString = function(str) {
var open = str.charAt(0);
if (open === '\'' || open === '"' || open === '`') {
return str.slice(-1) === open;
}
return false;
};
/**
* Create the key to use for memoization. The unique key is generated
* by iterating over the options and concatenating key-value pairs
* to the pattern string.
*/
utils.createKey = function(pattern, options) {
var id = pattern;
if (typeof options === 'undefined') {
return id;
}
var keys = Object.keys(options);
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
id += ';' + key + '=' + String(options[key]);
}
return id;
};
/**
* Normalize options
*/
utils.createOptions = function(options) {
var opts = utils.extend.apply(null, arguments);
if (typeof opts.expand === 'boolean') {
opts.optimize = !opts.expand;
}
if (typeof opts.optimize === 'boolean') {
opts.expand = !opts.optimize;
}
if (opts.optimize === true) {
opts.makeRe = true;
}
return opts;
};
/**
* Join patterns in `a` to patterns in `b`
*/
utils.join = function(a, b, options) {
options = options || {};
a = utils.arrayify(a);
b = utils.arrayify(b);
if (!a.length) return b;
if (!b.length) return a;
var len = a.length;
var idx = -1;
var arr = [];
while (++idx < len) {
var val = a[idx];
if (Array.isArray(val)) {
for (var i = 0; i < val.length; i++) {
val[i] = utils.join(val[i], b, options);
}
arr.push(val);
continue;
}
for (var j = 0; j < b.length; j++) {
var bval = b[j];
if (Array.isArray(bval)) {
arr.push(utils.join(val, bval, options));
} else {
arr.push(val + bval);
}
}
}
return arr;
};
/**
* Split the given string on `,` if not escaped.
*/
utils.split = function(str, options) {
var opts = utils.extend({sep: ','}, options);
if (typeof opts.keepQuotes !== 'boolean') {
opts.keepQuotes = true;
}
if (opts.unescape === false) {
opts.keepEscaping = true;
}
return splitString(str, opts, utils.escapeBrackets(opts));
};
/**
* Expand ranges or sets in the given `pattern`.
*
* @param {String} `str`
* @param {Object} `options`
* @return {Object}
*/
utils.expand = function(str, options) {
var opts = utils.extend({rangeLimit: 10000}, options);
var segs = utils.split(str, opts);
var tok = { segs: segs };
if (utils.isQuotedString(str)) {
return tok;
}
if (opts.rangeLimit === true) {
opts.rangeLimit = 10000;
}
if (segs.length > 1) {
if (opts.optimize === false) {
tok.val = segs[0];
return tok;
}
tok.segs = utils.stringifyArray(tok.segs);
} else if (segs.length === 1) {
var arr = str.split('..');
if (arr.length === 1) {
tok.val = tok.segs[tok.segs.length - 1] || tok.val || str;
tok.segs = [];
return tok;
}
if (arr.length === 2 && arr[0] === arr[1]) {
tok.escaped = true;
tok.val = arr[0];
tok.segs = [];
return tok;
}
if (arr.length > 1) {
if (opts.optimize !== false) {
opts.optimize = true;
delete opts.expand;
}
if (opts.optimize !== true) {
var min = Math.min(arr[0], arr[1]);
var max = Math.max(arr[0], arr[1]);
var step = arr[2] || 1;
if (opts.rangeLimit !== false && ((max - min) / step >= opts.rangeLimit)) {
throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.');
}
}
arr.push(opts);
tok.segs = utils.fillRange.apply(null, arr);
if (!tok.segs.length) {
tok.escaped = true;
tok.val = str;
return tok;
}
if (opts.optimize === true) {
tok.segs = utils.stringifyArray(tok.segs);
}
if (tok.segs === '') {
tok.val = str;
} else {
tok.val = tok.segs[0];
}
return tok;
}
} else {
tok.val = str;
}
return tok;
};
/**
* Ensure commas inside brackets and parens are not split.
* @param {Object} `tok` Token from the `split-string` module
* @return {undefined}
*/
utils.escapeBrackets = function(options) {
return function(tok) {
if (tok.escaped && tok.val === 'b') {
tok.val = '\\b';
return;
}
if (tok.val !== '(' && tok.val !== '[') return;
var opts = utils.extend({}, options);
var brackets = [];
var parens = [];
var stack = [];
var val = tok.val;
var str = tok.str;
var i = tok.idx - 1;
while (++i < str.length) {
var ch = str[i];
if (ch === '\\') {
val += (opts.keepEscaping === false ? '' : ch) + str[++i];
continue;
}
if (ch === '(') {
parens.push(ch);
stack.push(ch);
}
if (ch === '[') {
brackets.push(ch);
stack.push(ch);
}
if (ch === ')') {
parens.pop();
stack.pop();
if (!stack.length) {
val += ch;
break;
}
}
if (ch === ']') {
brackets.pop();
stack.pop();
if (!stack.length) {
val += ch;
break;
}
}
val += ch;
}
tok.split = false;
tok.val = val.slice(1);
tok.idx = i;
};
};
/**
* Returns true if the given string looks like a regex quantifier
* @return {Boolean}
*/
utils.isQuantifier = function(str) {
return /^(?:[0-9]?,[0-9]|[0-9],)$/.test(str);
};
/**
* Cast `val` to an array.
* @param {*} `val`
*/
utils.stringifyArray = function(arr) {
return [utils.arrayify(arr).join('|')];
};
/**
* Cast `val` to an array.
* @param {*} `val`
*/
utils.arrayify = function(arr) {
if (typeof arr === 'undefined') {
return [];
}
if (typeof arr === 'string') {
return [arr];
}
return arr;
};
/**
* Returns true if the given `str` is a non-empty string
* @return {Boolean}
*/
utils.isString = function(str) {
return str != null && typeof str === 'string';
};
/**
* Get the last element from `array`
* @param {Array} `array`
* @return {*}
*/
utils.last = function(arr, n) {
return arr[arr.length - (n || 1)];
};
utils.escapeRegex = function(str) {
return str.replace(/\\?([!^*?()[\]{}+?/])/g, '\\$1');
};

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The MIT License (MIT)
Copyright (c) 2014-2015, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# extend-shallow [![NPM version](https://badge.fury.io/js/extend-shallow.svg)](http://badge.fury.io/js/extend-shallow) [![Build Status](https://travis-ci.org/jonschlinkert/extend-shallow.svg)](https://travis-ci.org/jonschlinkert/extend-shallow)
> Extend an object with the properties of additional objects. node.js/javascript util.
## Install
Install with [npm](https://www.npmjs.com/)
```sh
$ npm i extend-shallow --save
```
## Usage
```js
var extend = require('extend-shallow');
extend({a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
Pass an empty object to shallow clone:
```js
var obj = {};
extend(obj, {a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
## Related
* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.
* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)
* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)
* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.
* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.
* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.
## Running tests
Install dev dependencies:
```sh
$ npm i -d && npm test
```
## Author
**Jon Schlinkert**
+ [github/jonschlinkert](https://github.com/jonschlinkert)
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
## License
Copyright © 2015 Jon Schlinkert
Released under the MIT license.
***
_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._

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'use strict';
var isObject = require('is-extendable');
module.exports = function extend(o/*, objects*/) {
if (!isObject(o)) { o = {}; }
var len = arguments.length;
for (var i = 1; i < len; i++) {
var obj = arguments[i];
if (isObject(obj)) {
assign(o, obj);
}
}
return o;
};
function assign(a, b) {
for (var key in b) {
if (hasOwn(b, key)) {
a[key] = b[key];
}
}
}
/**
* Returns true if the given `key` is an own property of `obj`.
*/
function hasOwn(obj, key) {
return Object.prototype.hasOwnProperty.call(obj, key);
}

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{
"name": "extend-shallow",
"description": "Extend an object with the properties of additional objects. node.js/javascript util.",
"version": "2.0.1",
"homepage": "https://github.com/jonschlinkert/extend-shallow",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"repository": "jonschlinkert/extend-shallow",
"bugs": {
"url": "https://github.com/jonschlinkert/extend-shallow/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"is-extendable": "^0.1.0"
},
"devDependencies": {
"array-slice": "^0.2.3",
"benchmarked": "^0.1.4",
"chalk": "^1.0.0",
"for-own": "^0.1.3",
"glob": "^5.0.12",
"is-plain-object": "^2.0.1",
"kind-of": "^2.0.0",
"minimist": "^1.1.1",
"mocha": "^2.2.5",
"should": "^7.0.1"
},
"keywords": [
"assign",
"extend",
"javascript",
"js",
"keys",
"merge",
"obj",
"object",
"prop",
"properties",
"property",
"props",
"shallow",
"util",
"utility",
"utils",
"value"
]
}

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node_modules/webpack/node_modules/braces/package.json generated vendored Normal file
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{
"name": "braces",
"description": "Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.",
"version": "2.3.2",
"homepage": "https://github.com/micromatch/braces",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"Brian Woodward (https://twitter.com/doowb)",
"Elan Shanker (https://github.com/es128)",
"Eugene Sharygin (https://github.com/eush77)",
"hemanth.hm (http://h3manth.com)",
"Jon Schlinkert (http://twitter.com/jonschlinkert)"
],
"repository": "micromatch/braces",
"bugs": {
"url": "https://github.com/micromatch/braces/issues"
},
"license": "MIT",
"files": [
"index.js",
"lib"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha",
"benchmark": "node benchmark"
},
"dependencies": {
"arr-flatten": "^1.1.0",
"array-unique": "^0.3.2",
"extend-shallow": "^2.0.1",
"fill-range": "^4.0.0",
"isobject": "^3.0.1",
"repeat-element": "^1.1.2",
"snapdragon": "^0.8.1",
"snapdragon-node": "^2.0.1",
"split-string": "^3.0.2",
"to-regex": "^3.0.1"
},
"devDependencies": {
"ansi-cyan": "^0.1.1",
"benchmarked": "^2.0.0",
"brace-expansion": "^1.1.8",
"cross-spawn": "^5.1.0",
"gulp": "^3.9.1",
"gulp-eslint": "^4.0.0",
"gulp-format-md": "^1.0.0",
"gulp-istanbul": "^1.1.2",
"gulp-mocha": "^3.0.1",
"gulp-unused": "^0.2.1",
"is-windows": "^1.0.1",
"minimatch": "^3.0.4",
"mocha": "^3.2.0",
"noncharacters": "^1.1.0",
"text-table": "^0.2.0",
"time-diff": "^0.3.1",
"yargs-parser": "^8.0.0"
},
"keywords": [
"alpha",
"alphabetical",
"bash",
"brace",
"braces",
"expand",
"expansion",
"filepath",
"fill",
"fs",
"glob",
"globbing",
"letter",
"match",
"matches",
"matching",
"number",
"numerical",
"path",
"range",
"ranges",
"sh"
],
"verb": {
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"lint": {
"reflinks": true
},
"plugins": [
"gulp-format-md"
],
"related": {
"list": [
"expand-brackets",
"extglob",
"fill-range",
"micromatch",
"nanomatch"
]
}
}
}

21
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014-2017, Jon Schlinkert
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

250
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@ -0,0 +1,250 @@
# fill-range [![NPM version](https://img.shields.io/npm/v/fill-range.svg?style=flat)](https://www.npmjs.com/package/fill-range) [![NPM monthly downloads](https://img.shields.io/npm/dm/fill-range.svg?style=flat)](https://npmjs.org/package/fill-range) [![NPM total downloads](https://img.shields.io/npm/dt/fill-range.svg?style=flat)](https://npmjs.org/package/fill-range) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/fill-range.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/fill-range)
> Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`
## Table of Contents
- [Install](#install)
- [Usage](#usage)
- [Examples](#examples)
- [Options](#options)
* [options.step](#optionsstep)
* [options.strictRanges](#optionsstrictranges)
* [options.stringify](#optionsstringify)
* [options.toRegex](#optionstoregex)
* [options.transform](#optionstransform)
- [About](#about)
_(TOC generated by [verb](https://github.com/verbose/verb) using [markdown-toc](https://github.com/jonschlinkert/markdown-toc))_
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save fill-range
```
Install with [yarn](https://yarnpkg.com):
```sh
$ yarn add fill-range
```
## Usage
Expands numbers and letters, optionally using a `step` as the last argument. _(Numbers may be defined as JavaScript numbers or strings)_.
```js
var fill = require('fill-range');
fill(from, to[, step, options]);
// examples
console.log(fill('1', '10')); //=> '[ '1', '2', '3', '4', '5', '6', '7', '8', '9', '10' ]'
console.log(fill('1', '10', {toRegex: true})); //=> [1-9]|10
```
**Params**
* `from`: **{String|Number}** the number or letter to start with
* `to`: **{String|Number}** the number or letter to end with
* `step`: **{String|Number|Object|Function}** Optionally pass a [step](#optionsstep) to use.
* `options`: **{Object|Function}**: See all available [options](#options)
## Examples
By default, an array of values is returned.
**Alphabetical ranges**
```js
console.log(fill('a', 'e')); //=> ['a', 'b', 'c', 'd', 'e']
console.log(fill('A', 'E')); //=> [ 'A', 'B', 'C', 'D', 'E' ]
```
**Numerical ranges**
Numbers can be defined as actual numbers or strings.
```js
console.log(fill(1, 5)); //=> [ 1, 2, 3, 4, 5 ]
console.log(fill('1', '5')); //=> [ 1, 2, 3, 4, 5 ]
```
**Negative ranges**
Numbers can be defined as actual numbers or strings.
```js
console.log(fill('-5', '-1')); //=> [ '-5', '-4', '-3', '-2', '-1' ]
console.log(fill('-5', '5')); //=> [ '-5', '-4', '-3', '-2', '-1', '0', '1', '2', '3', '4', '5' ]
```
**Steps (increments)**
```js
// numerical ranges with increments
console.log(fill('0', '25', 4)); //=> [ '0', '4', '8', '12', '16', '20', '24' ]
console.log(fill('0', '25', 5)); //=> [ '0', '5', '10', '15', '20', '25' ]
console.log(fill('0', '25', 6)); //=> [ '0', '6', '12', '18', '24' ]
// alphabetical ranges with increments
console.log(fill('a', 'z', 4)); //=> [ 'a', 'e', 'i', 'm', 'q', 'u', 'y' ]
console.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]
console.log(fill('a', 'z', 6)); //=> [ 'a', 'g', 'm', 's', 'y' ]
```
## Options
### options.step
**Type**: `number` (formatted as a string or number)
**Default**: `undefined`
**Description**: The increment to use for the range. Can be used with letters or numbers.
**Example(s)**
```js
// numbers
console.log(fill('1', '10', 2)); //=> [ '1', '3', '5', '7', '9' ]
console.log(fill('1', '10', 3)); //=> [ '1', '4', '7', '10' ]
console.log(fill('1', '10', 4)); //=> [ '1', '5', '9' ]
// letters
console.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]
console.log(fill('a', 'z', 7)); //=> [ 'a', 'h', 'o', 'v' ]
console.log(fill('a', 'z', 9)); //=> [ 'a', 'j', 's' ]
```
### options.strictRanges
**Type**: `boolean`
**Default**: `false`
**Description**: By default, `null` is returned when an invalid range is passed. Enable this option to throw a `RangeError` on invalid ranges.
**Example(s)**
The following are all invalid:
```js
fill('1.1', '2'); // decimals not supported in ranges
fill('a', '2'); // incompatible range values
fill(1, 10, 'foo'); // invalid "step" argument
```
### options.stringify
**Type**: `boolean`
**Default**: `undefined`
**Description**: Cast all returned values to strings. By default, integers are returned as numbers.
**Example(s)**
```js
console.log(fill(1, 5)); //=> [ 1, 2, 3, 4, 5 ]
console.log(fill(1, 5, {stringify: true})); //=> [ '1', '2', '3', '4', '5' ]
```
### options.toRegex
**Type**: `boolean`
**Default**: `undefined`
**Description**: Create a regex-compatible source string, instead of expanding values to an array.
**Example(s)**
```js
// alphabetical range
console.log(fill('a', 'e', {toRegex: true})); //=> '[a-e]'
// alphabetical with step
console.log(fill('a', 'z', 3, {toRegex: true})); //=> 'a|d|g|j|m|p|s|v|y'
// numerical range
console.log(fill('1', '100', {toRegex: true})); //=> '[1-9]|[1-9][0-9]|100'
// numerical range with zero padding
console.log(fill('000001', '100000', {toRegex: true}));
//=> '0{5}[1-9]|0{4}[1-9][0-9]|0{3}[1-9][0-9]{2}|0{2}[1-9][0-9]{3}|0[1-9][0-9]{4}|100000'
```
### options.transform
**Type**: `function`
**Default**: `undefined`
**Description**: Customize each value in the returned array (or [string](#optionstoRegex)). _(you can also pass this function as the last argument to `fill()`)_.
**Example(s)**
```js
// increase padding by two
var arr = fill('01', '05', function(val, a, b, step, idx, arr, options) {
return repeat('0', (options.maxLength + 2) - val.length) + val;
});
console.log(arr);
//=> ['0001', '0002', '0003', '0004', '0005']
```
## About
### Related projects
* [braces](https://www.npmjs.com/package/braces): Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces "Fast, comprehensive, bash-like brace expansion implemented in JavaScript. Complete support for the Bash 4.3 braces specification, without sacrificing speed.")
* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range "Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.")
* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
* [to-regex-range](https://www.npmjs.com/package/to-regex-range): Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than… [more](https://github.com/jonschlinkert/to-regex-range) | [homepage](https://github.com/jonschlinkert/to-regex-range "Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.87 million test assertions.")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 103 | [jonschlinkert](https://github.com/jonschlinkert) |
| 2 | [paulmillr](https://github.com/paulmillr) |
| 1 | [edorivai](https://github.com/edorivai) |
| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
### Building docs
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
### Running tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
```sh
$ npm install && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 23, 2017._

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/*!
* fill-range <https://github.com/jonschlinkert/fill-range>
*
* Copyright (c) 2014-2015, 2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
var util = require('util');
var isNumber = require('is-number');
var extend = require('extend-shallow');
var repeat = require('repeat-string');
var toRegex = require('to-regex-range');
/**
* Return a range of numbers or letters.
*
* @param {String} `start` Start of the range
* @param {String} `stop` End of the range
* @param {String} `step` Increment or decrement to use.
* @param {Function} `fn` Custom function to modify each element in the range.
* @return {Array}
*/
function fillRange(start, stop, step, options) {
if (typeof start === 'undefined') {
return [];
}
if (typeof stop === 'undefined' || start === stop) {
// special case, for handling negative zero
var isString = typeof start === 'string';
if (isNumber(start) && !toNumber(start)) {
return [isString ? '0' : 0];
}
return [start];
}
if (typeof step !== 'number' && typeof step !== 'string') {
options = step;
step = undefined;
}
if (typeof options === 'function') {
options = { transform: options };
}
var opts = extend({step: step}, options);
if (opts.step && !isValidNumber(opts.step)) {
if (opts.strictRanges === true) {
throw new TypeError('expected options.step to be a number');
}
return [];
}
opts.isNumber = isValidNumber(start) && isValidNumber(stop);
if (!opts.isNumber && !isValid(start, stop)) {
if (opts.strictRanges === true) {
throw new RangeError('invalid range arguments: ' + util.inspect([start, stop]));
}
return [];
}
opts.isPadded = isPadded(start) || isPadded(stop);
opts.toString = opts.stringify
|| typeof opts.step === 'string'
|| typeof start === 'string'
|| typeof stop === 'string'
|| !opts.isNumber;
if (opts.isPadded) {
opts.maxLength = Math.max(String(start).length, String(stop).length);
}
// support legacy minimatch/fill-range options
if (typeof opts.optimize === 'boolean') opts.toRegex = opts.optimize;
if (typeof opts.makeRe === 'boolean') opts.toRegex = opts.makeRe;
return expand(start, stop, opts);
}
function expand(start, stop, options) {
var a = options.isNumber ? toNumber(start) : start.charCodeAt(0);
var b = options.isNumber ? toNumber(stop) : stop.charCodeAt(0);
var step = Math.abs(toNumber(options.step)) || 1;
if (options.toRegex && step === 1) {
return toRange(a, b, start, stop, options);
}
var zero = {greater: [], lesser: []};
var asc = a < b;
var arr = new Array(Math.round((asc ? b - a : a - b) / step));
var idx = 0;
while (asc ? a <= b : a >= b) {
var val = options.isNumber ? a : String.fromCharCode(a);
if (options.toRegex && (val >= 0 || !options.isNumber)) {
zero.greater.push(val);
} else {
zero.lesser.push(Math.abs(val));
}
if (options.isPadded) {
val = zeros(val, options);
}
if (options.toString) {
val = String(val);
}
if (typeof options.transform === 'function') {
arr[idx++] = options.transform(val, a, b, step, idx, arr, options);
} else {
arr[idx++] = val;
}
if (asc) {
a += step;
} else {
a -= step;
}
}
if (options.toRegex === true) {
return toSequence(arr, zero, options);
}
return arr;
}
function toRange(a, b, start, stop, options) {
if (options.isPadded) {
return toRegex(start, stop, options);
}
if (options.isNumber) {
return toRegex(Math.min(a, b), Math.max(a, b), options);
}
var start = String.fromCharCode(Math.min(a, b));
var stop = String.fromCharCode(Math.max(a, b));
return '[' + start + '-' + stop + ']';
}
function toSequence(arr, zeros, options) {
var greater = '', lesser = '';
if (zeros.greater.length) {
greater = zeros.greater.join('|');
}
if (zeros.lesser.length) {
lesser = '-(' + zeros.lesser.join('|') + ')';
}
var res = greater && lesser
? greater + '|' + lesser
: greater || lesser;
if (options.capture) {
return '(' + res + ')';
}
return res;
}
function zeros(val, options) {
if (options.isPadded) {
var str = String(val);
var len = str.length;
var dash = '';
if (str.charAt(0) === '-') {
dash = '-';
str = str.slice(1);
}
var diff = options.maxLength - len;
var pad = repeat('0', diff);
val = (dash + pad + str);
}
if (options.stringify) {
return String(val);
}
return val;
}
function toNumber(val) {
return Number(val) || 0;
}
function isPadded(str) {
return /^-?0\d/.test(str);
}
function isValid(min, max) {
return (isValidNumber(min) || isValidLetter(min))
&& (isValidNumber(max) || isValidLetter(max));
}
function isValidLetter(ch) {
return typeof ch === 'string' && ch.length === 1 && /^\w+$/.test(ch);
}
function isValidNumber(n) {
return isNumber(n) && !/\./.test(n);
}
/**
* Expose `fillRange`
* @type {Function}
*/
module.exports = fillRange;

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The MIT License (MIT)
Copyright (c) 2014-2015, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# extend-shallow [![NPM version](https://badge.fury.io/js/extend-shallow.svg)](http://badge.fury.io/js/extend-shallow) [![Build Status](https://travis-ci.org/jonschlinkert/extend-shallow.svg)](https://travis-ci.org/jonschlinkert/extend-shallow)
> Extend an object with the properties of additional objects. node.js/javascript util.
## Install
Install with [npm](https://www.npmjs.com/)
```sh
$ npm i extend-shallow --save
```
## Usage
```js
var extend = require('extend-shallow');
extend({a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
Pass an empty object to shallow clone:
```js
var obj = {};
extend(obj, {a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
## Related
* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.
* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)
* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)
* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.
* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.
* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.
## Running tests
Install dev dependencies:
```sh
$ npm i -d && npm test
```
## Author
**Jon Schlinkert**
+ [github/jonschlinkert](https://github.com/jonschlinkert)
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
## License
Copyright © 2015 Jon Schlinkert
Released under the MIT license.
***
_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._

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'use strict';
var isObject = require('is-extendable');
module.exports = function extend(o/*, objects*/) {
if (!isObject(o)) { o = {}; }
var len = arguments.length;
for (var i = 1; i < len; i++) {
var obj = arguments[i];
if (isObject(obj)) {
assign(o, obj);
}
}
return o;
};
function assign(a, b) {
for (var key in b) {
if (hasOwn(b, key)) {
a[key] = b[key];
}
}
}
/**
* Returns true if the given `key` is an own property of `obj`.
*/
function hasOwn(obj, key) {
return Object.prototype.hasOwnProperty.call(obj, key);
}

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{
"name": "extend-shallow",
"description": "Extend an object with the properties of additional objects. node.js/javascript util.",
"version": "2.0.1",
"homepage": "https://github.com/jonschlinkert/extend-shallow",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"repository": "jonschlinkert/extend-shallow",
"bugs": {
"url": "https://github.com/jonschlinkert/extend-shallow/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"is-extendable": "^0.1.0"
},
"devDependencies": {
"array-slice": "^0.2.3",
"benchmarked": "^0.1.4",
"chalk": "^1.0.0",
"for-own": "^0.1.3",
"glob": "^5.0.12",
"is-plain-object": "^2.0.1",
"kind-of": "^2.0.0",
"minimist": "^1.1.1",
"mocha": "^2.2.5",
"should": "^7.0.1"
},
"keywords": [
"assign",
"extend",
"javascript",
"js",
"keys",
"merge",
"obj",
"object",
"prop",
"properties",
"property",
"props",
"shallow",
"util",
"utility",
"utils",
"value"
]
}

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{
"name": "fill-range",
"description": "Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`",
"version": "4.0.0",
"homepage": "https://github.com/jonschlinkert/fill-range",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"<wtgtybhertgeghgtwtg@gmail.com> (https://github.com/wtgtybhertgeghgtwtg)",
"Edo Rivai <edo.rivai@gmail.com> (edo.rivai.nl)",
"Jon Schlinkert <jon.schlinkert@sellside.com> (http://twitter.com/jonschlinkert)",
"Paul Miller <paul+gh@paulmillr.com> (paulmillr.com)"
],
"repository": "jonschlinkert/fill-range",
"bugs": {
"url": "https://github.com/jonschlinkert/fill-range/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"extend-shallow": "^2.0.1",
"is-number": "^3.0.0",
"repeat-string": "^1.6.1",
"to-regex-range": "^2.1.0"
},
"devDependencies": {
"ansi-cyan": "^0.1.1",
"benchmarked": "^1.0.0",
"gulp-format-md": "^0.1.12",
"minimist": "^1.2.0",
"mocha": "^3.2.0"
},
"keywords": [
"alpha",
"alphabetical",
"array",
"bash",
"brace",
"expand",
"expansion",
"fill",
"glob",
"match",
"matches",
"matching",
"number",
"numerical",
"range",
"ranges",
"regex",
"sh"
],
"verb": {
"related": {
"list": [
"braces",
"expand-range",
"micromatch",
"to-regex-range"
]
},
"toc": true,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"lint": {
"reflinks": true
}
}
}

21
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The MIT License (MIT)
Copyright (c) 2014-2016, Jon Schlinkert
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

115
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@ -0,0 +1,115 @@
# is-number [![NPM version](https://img.shields.io/npm/v/is-number.svg?style=flat)](https://www.npmjs.com/package/is-number) [![NPM downloads](https://img.shields.io/npm/dm/is-number.svg?style=flat)](https://npmjs.org/package/is-number) [![Build Status](https://img.shields.io/travis/jonschlinkert/is-number.svg?style=flat)](https://travis-ci.org/jonschlinkert/is-number)
> Returns true if the value is a number. comprehensive tests.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save is-number
```
## Usage
To understand some of the rationale behind the decisions made in this library (and to learn about some oddities of number evaluation in JavaScript), [see this gist](https://gist.github.com/jonschlinkert/e30c70c713da325d0e81).
```js
var isNumber = require('is-number');
```
### true
See the [tests](./test.js) for more examples.
```js
isNumber(5e3) //=> 'true'
isNumber(0xff) //=> 'true'
isNumber(-1.1) //=> 'true'
isNumber(0) //=> 'true'
isNumber(1) //=> 'true'
isNumber(1.1) //=> 'true'
isNumber(10) //=> 'true'
isNumber(10.10) //=> 'true'
isNumber(100) //=> 'true'
isNumber('-1.1') //=> 'true'
isNumber('0') //=> 'true'
isNumber('012') //=> 'true'
isNumber('0xff') //=> 'true'
isNumber('1') //=> 'true'
isNumber('1.1') //=> 'true'
isNumber('10') //=> 'true'
isNumber('10.10') //=> 'true'
isNumber('100') //=> 'true'
isNumber('5e3') //=> 'true'
isNumber(parseInt('012')) //=> 'true'
isNumber(parseFloat('012')) //=> 'true'
```
### False
See the [tests](./test.js) for more examples.
```js
isNumber('foo') //=> 'false'
isNumber([1]) //=> 'false'
isNumber([]) //=> 'false'
isNumber(function () {}) //=> 'false'
isNumber(Infinity) //=> 'false'
isNumber(NaN) //=> 'false'
isNumber(new Array('abc')) //=> 'false'
isNumber(new Array(2)) //=> 'false'
isNumber(new Buffer('abc')) //=> 'false'
isNumber(null) //=> 'false'
isNumber(undefined) //=> 'false'
isNumber({abc: 'abc'}) //=> 'false'
```
## About
### Related projects
* [even](https://www.npmjs.com/package/even): Get the even numbered items from an array. | [homepage](https://github.com/jonschlinkert/even "Get the even numbered items from an array.")
* [is-even](https://www.npmjs.com/package/is-even): Return true if the given number is even. | [homepage](https://github.com/jonschlinkert/is-even "Return true if the given number is even.")
* [is-odd](https://www.npmjs.com/package/is-odd): Returns true if the given number is odd. | [homepage](https://github.com/jonschlinkert/is-odd "Returns true if the given number is odd.")
* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive "Returns `true` if the value is a primitive. ")
* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.")
* [odd](https://www.npmjs.com/package/odd): Get the odd numbered items from an array. | [homepage](https://github.com/jonschlinkert/odd "Get the odd numbered items from an array.")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Building docs
_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
```sh
$ npm install -g verb verb-generate-readme && verb
```
### Running tests
Install dev dependencies:
```sh
$ npm install -d && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
### License
Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT license](https://github.com/jonschlinkert/is-number/blob/master/LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.30, on September 10, 2016._

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/*!
* is-number <https://github.com/jonschlinkert/is-number>
*
* Copyright (c) 2014-2015, Jon Schlinkert.
* Licensed under the MIT License.
*/
'use strict';
var typeOf = require('kind-of');
module.exports = function isNumber(num) {
var type = typeOf(num);
if (type === 'string') {
if (!num.trim()) return false;
} else if (type !== 'number') {
return false;
}
return (num - num + 1) >= 0;
};

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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014-2017, Jon Schlinkert
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

View file

@ -0,0 +1,261 @@
# kind-of [![NPM version](https://img.shields.io/npm/v/kind-of.svg?style=flat)](https://www.npmjs.com/package/kind-of) [![NPM monthly downloads](https://img.shields.io/npm/dm/kind-of.svg?style=flat)](https://npmjs.org/package/kind-of) [![NPM total downloads](https://img.shields.io/npm/dt/kind-of.svg?style=flat)](https://npmjs.org/package/kind-of) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/kind-of.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/kind-of)
> Get the native type of a value.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save kind-of
```
## Install
Install with [bower](https://bower.io/)
```sh
$ bower install kind-of --save
```
## Usage
> es5, browser and es6 ready
```js
var kindOf = require('kind-of');
kindOf(undefined);
//=> 'undefined'
kindOf(null);
//=> 'null'
kindOf(true);
//=> 'boolean'
kindOf(false);
//=> 'boolean'
kindOf(new Boolean(true));
//=> 'boolean'
kindOf(new Buffer(''));
//=> 'buffer'
kindOf(42);
//=> 'number'
kindOf(new Number(42));
//=> 'number'
kindOf('str');
//=> 'string'
kindOf(new String('str'));
//=> 'string'
kindOf(arguments);
//=> 'arguments'
kindOf({});
//=> 'object'
kindOf(Object.create(null));
//=> 'object'
kindOf(new Test());
//=> 'object'
kindOf(new Date());
//=> 'date'
kindOf([]);
//=> 'array'
kindOf([1, 2, 3]);
//=> 'array'
kindOf(new Array());
//=> 'array'
kindOf(/foo/);
//=> 'regexp'
kindOf(new RegExp('foo'));
//=> 'regexp'
kindOf(function () {});
//=> 'function'
kindOf(function * () {});
//=> 'function'
kindOf(new Function());
//=> 'function'
kindOf(new Map());
//=> 'map'
kindOf(new WeakMap());
//=> 'weakmap'
kindOf(new Set());
//=> 'set'
kindOf(new WeakSet());
//=> 'weakset'
kindOf(Symbol('str'));
//=> 'symbol'
kindOf(new Int8Array());
//=> 'int8array'
kindOf(new Uint8Array());
//=> 'uint8array'
kindOf(new Uint8ClampedArray());
//=> 'uint8clampedarray'
kindOf(new Int16Array());
//=> 'int16array'
kindOf(new Uint16Array());
//=> 'uint16array'
kindOf(new Int32Array());
//=> 'int32array'
kindOf(new Uint32Array());
//=> 'uint32array'
kindOf(new Float32Array());
//=> 'float32array'
kindOf(new Float64Array());
//=> 'float64array'
```
## Benchmarks
Benchmarked against [typeof](http://github.com/CodingFu/typeof) and [type-of](https://github.com/ForbesLindesay/type-of).
Note that performaces is slower for es6 features `Map`, `WeakMap`, `Set` and `WeakSet`.
```bash
#1: array
current x 23,329,397 ops/sec ±0.82% (94 runs sampled)
lib-type-of x 4,170,273 ops/sec ±0.55% (94 runs sampled)
lib-typeof x 9,686,935 ops/sec ±0.59% (98 runs sampled)
#2: boolean
current x 27,197,115 ops/sec ±0.85% (94 runs sampled)
lib-type-of x 3,145,791 ops/sec ±0.73% (97 runs sampled)
lib-typeof x 9,199,562 ops/sec ±0.44% (99 runs sampled)
#3: date
current x 20,190,117 ops/sec ±0.86% (92 runs sampled)
lib-type-of x 5,166,970 ops/sec ±0.74% (94 runs sampled)
lib-typeof x 9,610,821 ops/sec ±0.50% (96 runs sampled)
#4: function
current x 23,855,460 ops/sec ±0.60% (97 runs sampled)
lib-type-of x 5,667,740 ops/sec ±0.54% (100 runs sampled)
lib-typeof x 10,010,644 ops/sec ±0.44% (100 runs sampled)
#5: null
current x 27,061,047 ops/sec ±0.97% (96 runs sampled)
lib-type-of x 13,965,573 ops/sec ±0.62% (97 runs sampled)
lib-typeof x 8,460,194 ops/sec ±0.61% (97 runs sampled)
#6: number
current x 25,075,682 ops/sec ±0.53% (99 runs sampled)
lib-type-of x 2,266,405 ops/sec ±0.41% (98 runs sampled)
lib-typeof x 9,821,481 ops/sec ±0.45% (99 runs sampled)
#7: object
current x 3,348,980 ops/sec ±0.49% (99 runs sampled)
lib-type-of x 3,245,138 ops/sec ±0.60% (94 runs sampled)
lib-typeof x 9,262,952 ops/sec ±0.59% (99 runs sampled)
#8: regex
current x 21,284,827 ops/sec ±0.72% (96 runs sampled)
lib-type-of x 4,689,241 ops/sec ±0.43% (100 runs sampled)
lib-typeof x 8,957,593 ops/sec ±0.62% (98 runs sampled)
#9: string
current x 25,379,234 ops/sec ±0.58% (96 runs sampled)
lib-type-of x 3,635,148 ops/sec ±0.76% (93 runs sampled)
lib-typeof x 9,494,134 ops/sec ±0.49% (98 runs sampled)
#10: undef
current x 27,459,221 ops/sec ±1.01% (93 runs sampled)
lib-type-of x 14,360,433 ops/sec ±0.52% (99 runs sampled)
lib-typeof x 23,202,868 ops/sec ±0.59% (94 runs sampled)
```
## Optimizations
In 7 out of 8 cases, this library is 2x-10x faster than other top libraries included in the benchmarks. There are a few things that lead to this performance advantage, none of them hard and fast rules, but all of them simple and repeatable in almost any code library:
1. Optimize around the fastest and most common use cases first. Of course, this will change from project-to-project, but I took some time to understand how and why `typeof` checks were being used in my own libraries and other libraries I use a lot.
2. Optimize around bottlenecks - In other words, the order in which conditionals are implemented is significant, because each check is only as fast as the failing checks that came before it. Here, the biggest bottleneck by far is checking for plain objects (an object that was created by the `Object` constructor). I opted to make this check happen by process of elimination rather than brute force up front (e.g. by using something like `val.constructor.name`), so that every other type check would not be penalized it.
3. Don't do uneccessary processing - why do `.slice(8, -1).toLowerCase();` just to get the word `regex`? It's much faster to do `if (type === '[object RegExp]') return 'regex'`
## About
### Related projects
* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet")
* [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number "Returns true if the value is a number. comprehensive tests.")
* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive "Returns `true` if the value is a primitive. ")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 59 | [jonschlinkert](https://github.com/jonschlinkert) |
| 2 | [miguelmota](https://github.com/miguelmota) |
| 1 | [dtothefp](https://github.com/dtothefp) |
| 1 | [ksheedlo](https://github.com/ksheedlo) |
| 1 | [pdehaan](https://github.com/pdehaan) |
| 1 | [laggingreflex](https://github.com/laggingreflex) |
### Building docs
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
### Running tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
```sh
$ npm install && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 16, 2017._

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var isBuffer = require('is-buffer');
var toString = Object.prototype.toString;
/**
* Get the native `typeof` a value.
*
* @param {*} `val`
* @return {*} Native javascript type
*/
module.exports = function kindOf(val) {
// primitivies
if (typeof val === 'undefined') {
return 'undefined';
}
if (val === null) {
return 'null';
}
if (val === true || val === false || val instanceof Boolean) {
return 'boolean';
}
if (typeof val === 'string' || val instanceof String) {
return 'string';
}
if (typeof val === 'number' || val instanceof Number) {
return 'number';
}
// functions
if (typeof val === 'function' || val instanceof Function) {
return 'function';
}
// array
if (typeof Array.isArray !== 'undefined' && Array.isArray(val)) {
return 'array';
}
// check for instances of RegExp and Date before calling `toString`
if (val instanceof RegExp) {
return 'regexp';
}
if (val instanceof Date) {
return 'date';
}
// other objects
var type = toString.call(val);
if (type === '[object RegExp]') {
return 'regexp';
}
if (type === '[object Date]') {
return 'date';
}
if (type === '[object Arguments]') {
return 'arguments';
}
if (type === '[object Error]') {
return 'error';
}
// buffer
if (isBuffer(val)) {
return 'buffer';
}
// es6: Map, WeakMap, Set, WeakSet
if (type === '[object Set]') {
return 'set';
}
if (type === '[object WeakSet]') {
return 'weakset';
}
if (type === '[object Map]') {
return 'map';
}
if (type === '[object WeakMap]') {
return 'weakmap';
}
if (type === '[object Symbol]') {
return 'symbol';
}
// typed arrays
if (type === '[object Int8Array]') {
return 'int8array';
}
if (type === '[object Uint8Array]') {
return 'uint8array';
}
if (type === '[object Uint8ClampedArray]') {
return 'uint8clampedarray';
}
if (type === '[object Int16Array]') {
return 'int16array';
}
if (type === '[object Uint16Array]') {
return 'uint16array';
}
if (type === '[object Int32Array]') {
return 'int32array';
}
if (type === '[object Uint32Array]') {
return 'uint32array';
}
if (type === '[object Float32Array]') {
return 'float32array';
}
if (type === '[object Float64Array]') {
return 'float64array';
}
// must be a plain object
return 'object';
};

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{
"name": "kind-of",
"description": "Get the native type of a value.",
"version": "3.2.2",
"homepage": "https://github.com/jonschlinkert/kind-of",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"David Fox-Powell (https://dtothefp.github.io/me)",
"Jon Schlinkert (http://twitter.com/jonschlinkert)",
"Ken Sheedlo (kensheedlo.com)",
"laggingreflex (https://github.com/laggingreflex)",
"Miguel Mota (https://miguelmota.com)",
"Peter deHaan (http://about.me/peterdehaan)"
],
"repository": "jonschlinkert/kind-of",
"bugs": {
"url": "https://github.com/jonschlinkert/kind-of/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha",
"prepublish": "browserify -o browser.js -e index.js -s index --bare"
},
"dependencies": {
"is-buffer": "^1.1.5"
},
"devDependencies": {
"ansi-bold": "^0.1.1",
"benchmarked": "^1.0.0",
"browserify": "^14.3.0",
"glob": "^7.1.1",
"gulp-format-md": "^0.1.12",
"mocha": "^3.3.0",
"type-of": "^2.0.1",
"typeof": "^1.0.0"
},
"keywords": [
"arguments",
"array",
"boolean",
"check",
"date",
"function",
"is",
"is-type",
"is-type-of",
"kind",
"kind-of",
"number",
"object",
"of",
"regexp",
"string",
"test",
"type",
"type-of",
"typeof",
"types"
],
"verb": {
"related": {
"list": [
"is-glob",
"is-number",
"is-primitive"
]
},
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"lint": {
"reflinks": true
},
"reflinks": [
"verb"
]
}
}

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{
"name": "is-number",
"description": "Returns true if the value is a number. comprehensive tests.",
"version": "3.0.0",
"homepage": "https://github.com/jonschlinkert/is-number",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"Charlike Mike Reagent (http://www.tunnckocore.tk)",
"Jon Schlinkert <jon.schlinkert@sellside.com> (http://twitter.com/jonschlinkert)"
],
"repository": "jonschlinkert/is-number",
"bugs": {
"url": "https://github.com/jonschlinkert/is-number/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"kind-of": "^3.0.2"
},
"devDependencies": {
"benchmarked": "^0.2.5",
"chalk": "^1.1.3",
"gulp-format-md": "^0.1.10",
"mocha": "^3.0.2"
},
"keywords": [
"check",
"coerce",
"coercion",
"integer",
"is",
"is-nan",
"is-num",
"is-number",
"istype",
"kind",
"math",
"nan",
"num",
"number",
"numeric",
"test",
"type",
"typeof",
"value"
],
"verb": {
"related": {
"list": [
"even",
"is-even",
"is-odd",
"is-primitive",
"kind-of",
"odd"
]
},
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"lint": {
"reflinks": true
},
"reflinks": [
"verb",
"verb-generate-readme"
]
}
}

21
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014-2017, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

122
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# isobject [![NPM version](https://img.shields.io/npm/v/isobject.svg?style=flat)](https://www.npmjs.com/package/isobject) [![NPM monthly downloads](https://img.shields.io/npm/dm/isobject.svg?style=flat)](https://npmjs.org/package/isobject) [![NPM total downloads](https://img.shields.io/npm/dt/isobject.svg?style=flat)](https://npmjs.org/package/isobject) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/isobject.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/isobject)
> Returns true if the value is an object and not an array or null.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save isobject
```
Install with [yarn](https://yarnpkg.com):
```sh
$ yarn add isobject
```
Use [is-plain-object](https://github.com/jonschlinkert/is-plain-object) if you want only objects that are created by the `Object` constructor.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install isobject
```
Install with [bower](https://bower.io/)
```sh
$ bower install isobject
```
## Usage
```js
var isObject = require('isobject');
```
**True**
All of the following return `true`:
```js
isObject({});
isObject(Object.create({}));
isObject(Object.create(Object.prototype));
isObject(Object.create(null));
isObject({});
isObject(new Foo);
isObject(/foo/);
```
**False**
All of the following return `false`:
```js
isObject();
isObject(function () {});
isObject(1);
isObject([]);
isObject(undefined);
isObject(null);
```
## About
### Related projects
* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow "Extend an object with the properties of additional objects. node.js/javascript util.")
* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.")
* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.")
* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep "Recursively merge values in a javascript object.")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 29 | [jonschlinkert](https://github.com/jonschlinkert) |
| 4 | [doowb](https://github.com/doowb) |
| 1 | [magnudae](https://github.com/magnudae) |
| 1 | [LeSuisse](https://github.com/LeSuisse) |
| 1 | [tmcw](https://github.com/tmcw) |
### Building docs
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
### Running tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
```sh
$ npm install && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 30, 2017._

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export = isObject;
declare function isObject(val: any): boolean;
declare namespace isObject {}

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/*!
* isobject <https://github.com/jonschlinkert/isobject>
*
* Copyright (c) 2014-2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
module.exports = function isObject(val) {
return val != null && typeof val === 'object' && Array.isArray(val) === false;
};

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{
"name": "isobject",
"description": "Returns true if the value is an object and not an array or null.",
"version": "3.0.1",
"homepage": "https://github.com/jonschlinkert/isobject",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"(https://github.com/LeSuisse)",
"Brian Woodward (https://twitter.com/doowb)",
"Jon Schlinkert (http://twitter.com/jonschlinkert)",
"Magnús Dæhlen (https://github.com/magnudae)",
"Tom MacWright (https://macwright.org)"
],
"repository": "jonschlinkert/isobject",
"bugs": {
"url": "https://github.com/jonschlinkert/isobject/issues"
},
"license": "MIT",
"files": [
"index.d.ts",
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {},
"devDependencies": {
"gulp-format-md": "^0.1.9",
"mocha": "^2.4.5"
},
"keywords": [
"check",
"is",
"is-object",
"isobject",
"kind",
"kind-of",
"kindof",
"native",
"object",
"type",
"typeof",
"value"
],
"types": "index.d.ts",
"verb": {
"related": {
"list": [
"extend-shallow",
"is-plain-object",
"kind-of",
"merge-deep"
]
},
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"lint": {
"reflinks": true
},
"reflinks": [
"verb"
]
}
}

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# memory-fs
A simple in-memory filesystem. Holds data in a javascript object.
``` javascript
var MemoryFileSystem = require("memory-fs");
var fs = new MemoryFileSystem(); // Optionally pass a javascript object
fs.mkdirpSync("/a/test/dir");
fs.writeFileSync("/a/test/dir/file.txt", "Hello World");
fs.readFileSync("/a/test/dir/file.txt"); // returns Buffer("Hello World")
// Async variants too
fs.unlink("/a/test/dir/file.txt", function(err) {
// ...
});
fs.readdirSync("/a/test"); // returns ["dir"]
fs.statSync("/a/test/dir").isDirectory(); // returns true
fs.rmdirSync("/a/test/dir");
fs.mkdirpSync("C:\\use\\windows\\style\\paths");
```
## License
Copyright (c) 2012-2014 Tobias Koppers
MIT (http://www.opensource.org/licenses/mit-license.php)

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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var normalize = require("./normalize");
var errors = require("errno");
var stream = require("readable-stream");
var ReadableStream = stream.Readable;
var WritableStream = stream.Writable;
function MemoryFileSystemError(err, path) {
Error.call(this)
if (Error.captureStackTrace)
Error.captureStackTrace(this, arguments.callee)
this.code = err.code;
this.errno = err.errno;
this.message = err.description;
this.path = path;
}
MemoryFileSystemError.prototype = new Error();
function MemoryFileSystem(data) {
this.data = data || {};
}
module.exports = MemoryFileSystem;
function isDir(item) {
if(typeof item !== "object") return false;
return item[""] === true;
}
function isFile(item) {
if(typeof item !== "object") return false;
return !item[""];
}
function pathToArray(path) {
path = normalize(path);
var nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}
function trueFn() { return true; }
function falseFn() { return false; }
MemoryFileSystem.prototype.meta = function(_path) {
var path = pathToArray(_path);
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
return;
current = current[path[i]];
}
return current[path[i]];
}
MemoryFileSystem.prototype.existsSync = function(_path) {
return !!this.meta(_path);
}
MemoryFileSystem.prototype.statSync = function(_path) {
var current = this.meta(_path);
if(_path === "/" || isDir(current)) {
return {
isFile: falseFn,
isDirectory: trueFn,
isBlockDevice: falseFn,
isCharacterDevice: falseFn,
isSymbolicLink: falseFn,
isFIFO: falseFn,
isSocket: falseFn
};
} else if(isFile(current)) {
return {
isFile: trueFn,
isDirectory: falseFn,
isBlockDevice: falseFn,
isCharacterDevice: falseFn,
isSymbolicLink: falseFn,
isFIFO: falseFn,
isSocket: falseFn
};
} else {
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
}
};
MemoryFileSystem.prototype.readFileSync = function(_path, encoding) {
var path = pathToArray(_path);
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
current = current[path[i]];
}
if(!isFile(current[path[i]])) {
if(isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.EISDIR, _path);
else
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
}
current = current[path[i]];
return encoding ? current.toString(encoding) : current;
};
MemoryFileSystem.prototype.readdirSync = function(_path) {
if(_path === "/") return Object.keys(this.data).filter(Boolean);
var path = pathToArray(_path);
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
current = current[path[i]];
}
if(!isDir(current[path[i]])) {
if(isFile(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOTDIR, _path);
else
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
}
return Object.keys(current[path[i]]).filter(Boolean);
};
MemoryFileSystem.prototype.mkdirpSync = function(_path) {
var path = pathToArray(_path);
if(path.length === 0) return;
var current = this.data;
for(var i = 0; i < path.length; i++) {
if(isFile(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOTDIR, _path);
else if(!isDir(current[path[i]]))
current[path[i]] = {"":true};
current = current[path[i]];
}
return;
};
MemoryFileSystem.prototype.mkdirSync = function(_path) {
var path = pathToArray(_path);
if(path.length === 0) return;
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
current = current[path[i]];
}
if(isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.EEXIST, _path);
else if(isFile(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOTDIR, _path);
current[path[i]] = {"":true};
return;
};
MemoryFileSystem.prototype._remove = function(_path, name, testFn) {
var path = pathToArray(_path);
if(path.length === 0) {
throw new MemoryFileSystemError(errors.code.EPERM, _path);
}
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
current = current[path[i]];
}
if(!testFn(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
delete current[path[i]];
return;
};
MemoryFileSystem.prototype.rmdirSync = function(_path) {
return this._remove(_path, "Directory", isDir);
};
MemoryFileSystem.prototype.unlinkSync = function(_path) {
return this._remove(_path, "File", isFile);
};
MemoryFileSystem.prototype.readlinkSync = function(_path) {
throw new MemoryFileSystemError(errors.code.ENOSYS, _path);
};
MemoryFileSystem.prototype.writeFileSync = function(_path, content, encoding) {
if(!content && !encoding) throw new Error("No content");
var path = pathToArray(_path);
if(path.length === 0) {
throw new MemoryFileSystemError(errors.code.EISDIR, _path);
}
var current = this.data;
for(var i = 0; i < path.length - 1; i++) {
if(!isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.ENOENT, _path);
current = current[path[i]];
}
if(isDir(current[path[i]]))
throw new MemoryFileSystemError(errors.code.EISDIR, _path);
current[path[i]] = encoding || typeof content === "string" ? new Buffer(content, encoding) : content;
return;
};
MemoryFileSystem.prototype.join = require("./join");
MemoryFileSystem.prototype.pathToArray = pathToArray;
MemoryFileSystem.prototype.normalize = normalize;
// stream functions
MemoryFileSystem.prototype.createReadStream = function(path, options) {
var stream = new ReadableStream();
var done = false;
var data;
try {
data = this.readFileSync(path);
} catch (e) {
stream._read = function() {
if (done) {
return;
}
done = true;
this.emit('error', e);
this.push(null);
};
return stream;
}
options = options || { };
options.start = options.start || 0;
options.end = options.end || data.length;
stream._read = function() {
if (done) {
return;
}
done = true;
this.push(data.slice(options.start, options.end));
this.push(null);
};
return stream;
};
MemoryFileSystem.prototype.createWriteStream = function(path, options) {
var stream = new WritableStream(), self = this;
try {
// Zero the file and make sure it is writable
this.writeFileSync(path, new Buffer(0));
} catch(e) {
// This or setImmediate?
stream.once('prefinish', function() {
stream.emit('error', e);
});
return stream;
}
var bl = [ ], len = 0;
stream._write = function(chunk, encoding, callback) {
bl.push(chunk);
len += chunk.length;
self.writeFile(path, Buffer.concat(bl, len), callback);
}
return stream;
};
// async functions
["stat", "readdir", "mkdirp", "rmdir", "unlink", "readlink"].forEach(function(fn) {
MemoryFileSystem.prototype[fn] = function(path, callback) {
try {
var result = this[fn + "Sync"](path);
} catch(e) {
setImmediate(function() {
callback(e);
});
return;
}
setImmediate(function() {
callback(null, result);
});
};
});
["mkdir", "readFile"].forEach(function(fn) {
MemoryFileSystem.prototype[fn] = function(path, optArg, callback) {
if(!callback) {
callback = optArg;
optArg = undefined;
}
try {
var result = this[fn + "Sync"](path, optArg);
} catch(e) {
setImmediate(function() {
callback(e);
});
return;
}
setImmediate(function() {
callback(null, result);
});
};
});
MemoryFileSystem.prototype.exists = function(path, callback) {
return callback(this.existsSync(path));
}
MemoryFileSystem.prototype.writeFile = function (path, content, encoding, callback) {
if(!callback) {
callback = encoding;
encoding = undefined;
}
try {
this.writeFileSync(path, content, encoding);
} catch(e) {
return callback(e);
}
return callback();
};

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var normalize = require("./normalize");
var absoluteWinRegExp = /^[A-Z]:([\\\/]|$)/i;
var absoluteNixRegExp = /^\//i;
module.exports = function join(path, request) {
if(!request) return normalize(path);
if(absoluteWinRegExp.test(request)) return normalize(request.replace(/\//g, "\\"));
if(absoluteNixRegExp.test(request)) return normalize(request);
if(path == "/") return normalize(path + request);
if(absoluteWinRegExp.test(path)) return normalize(path.replace(/\//g, "\\") + "\\" + request.replace(/\//g, "\\"));
if(absoluteNixRegExp.test(path)) return normalize(path + "/" + request);
return normalize(path + "/" + request);
};

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module.exports = function normalize(path) {
var parts = path.split(/(\\+|\/+)/);
if(parts.length === 1)
return path;
var result = [];
var absolutePathStart = 0;
for(var i = 0, sep = false; i < parts.length; i++, sep = !sep) {
var part = parts[i];
if(i === 0 && /^([A-Z]:)?$/i.test(part)) {
result.push(part);
absolutePathStart = 2;
} else if(sep) {
result.push(part[0]);
} else if(part === "..") {
switch(result.length) {
case 0:
// i. e. ".." => ".."
// i. e. "../a/b/c" => "../a/b/c"
result.push(part);
break;
case 2:
// i. e. "a/.." => ""
// i. e. "/.." => "/"
// i. e. "C:\.." => "C:\"
// i. e. "a/../b/c" => "b/c"
// i. e. "/../b/c" => "/b/c"
// i. e. "C:\..\a\b\c" => "C:\a\b\c"
i++;
sep = !sep;
result.length = absolutePathStart;
break;
case 4:
// i. e. "a/b/.." => "a"
// i. e. "/a/.." => "/"
// i. e. "C:\a\.." => "C:\"
// i. e. "/a/../b/c" => "/b/c"
if(absolutePathStart === 0) {
result.length -= 3;
} else {
i++;
sep = !sep;
result.length = 2;
}
break;
default:
// i. e. "/a/b/.." => "/a"
// i. e. "/a/b/../c" => "/a/c"
result.length -= 3;
break;
}
} else if(part === ".") {
switch(result.length) {
case 0:
// i. e. "." => "."
// i. e. "./a/b/c" => "./a/b/c"
result.push(part);
break;
case 2:
// i. e. "a/." => "a"
// i. e. "/." => "/"
// i. e. "C:\." => "C:\"
// i. e. "C:\.\a\b\c" => "C:\a\b\c"
if(absolutePathStart === 0) {
result.length--;
} else {
i++;
sep = !sep;
}
break;
default:
// i. e. "a/b/." => "a/b"
// i. e. "/a/." => "/"
// i. e. "C:\a\." => "C:\"
// i. e. "a/./b/c" => "a/b/c"
// i. e. "/a/./b/c" => "/a/b/c"
result.length--;
break;
}
} else if(part) {
result.push(part);
}
}
if(result.length === 1 && /^[A-Za-z]:$/.test(result))
return result[0] + "\\";
return result.join("");
};

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{
"name": "memory-fs",
"version": "0.4.1",
"description": "A simple in-memory filesystem. Holds data in a javascript object.",
"main": "lib/MemoryFileSystem.js",
"directories": {
"test": "test"
},
"files": [
"lib/"
],
"scripts": {
"test": "mocha",
"cover": "istanbul cover node_modules/mocha/bin/_mocha",
"travis": "npm run cover -- --report lcovonly"
},
"repository": {
"type": "git",
"url": "https://github.com/webpack/memory-fs.git"
},
"keywords": [
"fs",
"memory"
],
"author": "Tobias Koppers @sokra",
"license": "MIT",
"bugs": {
"url": "https://github.com/webpack/memory-fs/issues"
},
"homepage": "https://github.com/webpack/memory-fs",
"devDependencies": {
"bl": "^1.0.0",
"codecov.io": "^0.1.4",
"coveralls": "^2.11.2",
"istanbul": "^0.2.13",
"mocha": "^1.20.1",
"should": "^4.0.4"
},
"dependencies": {
"errno": "^0.1.3",
"readable-stream": "^2.0.1"
}
}

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## History
### key
Changelog entries are classified using the following labels _(from [keep-a-changelog][]_):
- `added`: for new features
- `changed`: for changes in existing functionality
- `deprecated`: for once-stable features removed in upcoming releases
- `removed`: for deprecated features removed in this release
- `fixed`: for any bug fixes
- `bumped`: updated dependencies, only minor or higher will be listed.
### [3.0.0] - 2017-04-11
TODO. There should be no breaking changes. Please report any regressions. I will [reformat these release notes](https://github.com/micromatch/micromatch/pull/76) and add them to the changelog as soon as I have a chance.
### [1.0.1] - 2016-12-12
**Added**
- Support for windows path edge cases where backslashes are used in brackets or other unusual combinations.
### [1.0.0] - 2016-12-12
Stable release.
### [0.1.0] - 2016-10-08
First release.
[Unreleased]: https://github.com/jonschlinkert/micromatch/compare/0.1.0...HEAD
[0.2.0]: https://github.com/jonschlinkert/micromatch/compare/0.1.0...0.2.0
[keep-a-changelog]: https://github.com/olivierlacan/keep-a-changelog

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The MIT License (MIT)
Copyright (c) 2014-2018, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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'use strict';
/**
* Module dependencies
*/
var util = require('util');
var braces = require('braces');
var toRegex = require('to-regex');
var extend = require('extend-shallow');
/**
* Local dependencies
*/
var compilers = require('./lib/compilers');
var parsers = require('./lib/parsers');
var cache = require('./lib/cache');
var utils = require('./lib/utils');
var MAX_LENGTH = 1024 * 64;
/**
* The main function takes a list of strings and one or more
* glob patterns to use for matching.
*
* ```js
* var mm = require('micromatch');
* mm(list, patterns[, options]);
*
* console.log(mm(['a.js', 'a.txt'], ['*.js']));
* //=> [ 'a.js' ]
* ```
* @param {Array} `list` A list of strings to match
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Array} Returns an array of matches
* @summary false
* @api public
*/
function micromatch(list, patterns, options) {
patterns = utils.arrayify(patterns);
list = utils.arrayify(list);
var len = patterns.length;
if (list.length === 0 || len === 0) {
return [];
}
if (len === 1) {
return micromatch.match(list, patterns[0], options);
}
var omit = [];
var keep = [];
var idx = -1;
while (++idx < len) {
var pattern = patterns[idx];
if (typeof pattern === 'string' && pattern.charCodeAt(0) === 33 /* ! */) {
omit.push.apply(omit, micromatch.match(list, pattern.slice(1), options));
} else {
keep.push.apply(keep, micromatch.match(list, pattern, options));
}
}
var matches = utils.diff(keep, omit);
if (!options || options.nodupes !== false) {
return utils.unique(matches);
}
return matches;
}
/**
* Similar to the main function, but `pattern` must be a string.
*
* ```js
* var mm = require('micromatch');
* mm.match(list, pattern[, options]);
*
* console.log(mm.match(['a.a', 'a.aa', 'a.b', 'a.c'], '*.a'));
* //=> ['a.a', 'a.aa']
* ```
* @param {Array} `list` Array of strings to match
* @param {String} `pattern` Glob pattern to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Array} Returns an array of matches
* @api public
*/
micromatch.match = function(list, pattern, options) {
if (Array.isArray(pattern)) {
throw new TypeError('expected pattern to be a string');
}
var unixify = utils.unixify(options);
var isMatch = memoize('match', pattern, options, micromatch.matcher);
var matches = [];
list = utils.arrayify(list);
var len = list.length;
var idx = -1;
while (++idx < len) {
var ele = list[idx];
if (ele === pattern || isMatch(ele)) {
matches.push(utils.value(ele, unixify, options));
}
}
// if no options were passed, uniquify results and return
if (typeof options === 'undefined') {
return utils.unique(matches);
}
if (matches.length === 0) {
if (options.failglob === true) {
throw new Error('no matches found for "' + pattern + '"');
}
if (options.nonull === true || options.nullglob === true) {
return [options.unescape ? utils.unescape(pattern) : pattern];
}
}
// if `opts.ignore` was defined, diff ignored list
if (options.ignore) {
matches = micromatch.not(matches, options.ignore, options);
}
return options.nodupes !== false ? utils.unique(matches) : matches;
};
/**
* Returns true if the specified `string` matches the given glob `pattern`.
*
* ```js
* var mm = require('micromatch');
* mm.isMatch(string, pattern[, options]);
*
* console.log(mm.isMatch('a.a', '*.a'));
* //=> true
* console.log(mm.isMatch('a.b', '*.a'));
* //=> false
* ```
* @param {String} `string` String to match
* @param {String} `pattern` Glob pattern to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if the string matches the glob pattern.
* @api public
*/
micromatch.isMatch = function(str, pattern, options) {
if (typeof str !== 'string') {
throw new TypeError('expected a string: "' + util.inspect(str) + '"');
}
if (isEmptyString(str) || isEmptyString(pattern)) {
return false;
}
var equals = utils.equalsPattern(options);
if (equals(str)) {
return true;
}
var isMatch = memoize('isMatch', pattern, options, micromatch.matcher);
return isMatch(str);
};
/**
* Returns true if some of the strings in the given `list` match any of the
* given glob `patterns`.
*
* ```js
* var mm = require('micromatch');
* mm.some(list, patterns[, options]);
*
* console.log(mm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
* // true
* console.log(mm.some(['foo.js'], ['*.js', '!foo.js']));
* // false
* ```
* @param {String|Array} `list` The string or array of strings to test. Returns as soon as the first match is found.
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if any patterns match `str`
* @api public
*/
micromatch.some = function(list, patterns, options) {
if (typeof list === 'string') {
list = [list];
}
for (var i = 0; i < list.length; i++) {
if (micromatch(list[i], patterns, options).length === 1) {
return true;
}
}
return false;
};
/**
* Returns true if every string in the given `list` matches
* any of the given glob `patterns`.
*
* ```js
* var mm = require('micromatch');
* mm.every(list, patterns[, options]);
*
* console.log(mm.every('foo.js', ['foo.js']));
* // true
* console.log(mm.every(['foo.js', 'bar.js'], ['*.js']));
* // true
* console.log(mm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
* // false
* console.log(mm.every(['foo.js'], ['*.js', '!foo.js']));
* // false
* ```
* @param {String|Array} `list` The string or array of strings to test.
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if any patterns match `str`
* @api public
*/
micromatch.every = function(list, patterns, options) {
if (typeof list === 'string') {
list = [list];
}
for (var i = 0; i < list.length; i++) {
if (micromatch(list[i], patterns, options).length !== 1) {
return false;
}
}
return true;
};
/**
* Returns true if **any** of the given glob `patterns`
* match the specified `string`.
*
* ```js
* var mm = require('micromatch');
* mm.any(string, patterns[, options]);
*
* console.log(mm.any('a.a', ['b.*', '*.a']));
* //=> true
* console.log(mm.any('a.a', 'b.*'));
* //=> false
* ```
* @param {String|Array} `str` The string to test.
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if any patterns match `str`
* @api public
*/
micromatch.any = function(str, patterns, options) {
if (typeof str !== 'string') {
throw new TypeError('expected a string: "' + util.inspect(str) + '"');
}
if (isEmptyString(str) || isEmptyString(patterns)) {
return false;
}
if (typeof patterns === 'string') {
patterns = [patterns];
}
for (var i = 0; i < patterns.length; i++) {
if (micromatch.isMatch(str, patterns[i], options)) {
return true;
}
}
return false;
};
/**
* Returns true if **all** of the given `patterns` match
* the specified string.
*
* ```js
* var mm = require('micromatch');
* mm.all(string, patterns[, options]);
*
* console.log(mm.all('foo.js', ['foo.js']));
* // true
*
* console.log(mm.all('foo.js', ['*.js', '!foo.js']));
* // false
*
* console.log(mm.all('foo.js', ['*.js', 'foo.js']));
* // true
*
* console.log(mm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));
* // true
* ```
* @param {String|Array} `str` The string to test.
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if any patterns match `str`
* @api public
*/
micromatch.all = function(str, patterns, options) {
if (typeof str !== 'string') {
throw new TypeError('expected a string: "' + util.inspect(str) + '"');
}
if (typeof patterns === 'string') {
patterns = [patterns];
}
for (var i = 0; i < patterns.length; i++) {
if (!micromatch.isMatch(str, patterns[i], options)) {
return false;
}
}
return true;
};
/**
* Returns a list of strings that _**do not match any**_ of the given `patterns`.
*
* ```js
* var mm = require('micromatch');
* mm.not(list, patterns[, options]);
*
* console.log(mm.not(['a.a', 'b.b', 'c.c'], '*.a'));
* //=> ['b.b', 'c.c']
* ```
* @param {Array} `list` Array of strings to match.
* @param {String|Array} `patterns` One or more glob pattern to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Array} Returns an array of strings that **do not match** the given patterns.
* @api public
*/
micromatch.not = function(list, patterns, options) {
var opts = extend({}, options);
var ignore = opts.ignore;
delete opts.ignore;
var unixify = utils.unixify(opts);
list = utils.arrayify(list).map(unixify);
var matches = utils.diff(list, micromatch(list, patterns, opts));
if (ignore) {
matches = utils.diff(matches, micromatch(list, ignore));
}
return opts.nodupes !== false ? utils.unique(matches) : matches;
};
/**
* Returns true if the given `string` contains the given pattern. Similar
* to [.isMatch](#isMatch) but the pattern can match any part of the string.
*
* ```js
* var mm = require('micromatch');
* mm.contains(string, pattern[, options]);
*
* console.log(mm.contains('aa/bb/cc', '*b'));
* //=> true
* console.log(mm.contains('aa/bb/cc', '*d'));
* //=> false
* ```
* @param {String} `str` The string to match.
* @param {String|Array} `patterns` Glob pattern to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns true if the patter matches any part of `str`.
* @api public
*/
micromatch.contains = function(str, patterns, options) {
if (typeof str !== 'string') {
throw new TypeError('expected a string: "' + util.inspect(str) + '"');
}
if (typeof patterns === 'string') {
if (isEmptyString(str) || isEmptyString(patterns)) {
return false;
}
var equals = utils.equalsPattern(patterns, options);
if (equals(str)) {
return true;
}
var contains = utils.containsPattern(patterns, options);
if (contains(str)) {
return true;
}
}
var opts = extend({}, options, {contains: true});
return micromatch.any(str, patterns, opts);
};
/**
* Returns true if the given pattern and options should enable
* the `matchBase` option.
* @return {Boolean}
* @api private
*/
micromatch.matchBase = function(pattern, options) {
if (pattern && pattern.indexOf('/') !== -1 || !options) return false;
return options.basename === true || options.matchBase === true;
};
/**
* Filter the keys of the given object with the given `glob` pattern
* and `options`. Does not attempt to match nested keys. If you need this feature,
* use [glob-object][] instead.
*
* ```js
* var mm = require('micromatch');
* mm.matchKeys(object, patterns[, options]);
*
* var obj = { aa: 'a', ab: 'b', ac: 'c' };
* console.log(mm.matchKeys(obj, '*b'));
* //=> { ab: 'b' }
* ```
* @param {Object} `object` The object with keys to filter.
* @param {String|Array} `patterns` One or more glob patterns to use for matching.
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Object} Returns an object with only keys that match the given patterns.
* @api public
*/
micromatch.matchKeys = function(obj, patterns, options) {
if (!utils.isObject(obj)) {
throw new TypeError('expected the first argument to be an object');
}
var keys = micromatch(Object.keys(obj), patterns, options);
return utils.pick(obj, keys);
};
/**
* Returns a memoized matcher function from the given glob `pattern` and `options`.
* The returned function takes a string to match as its only argument and returns
* true if the string is a match.
*
* ```js
* var mm = require('micromatch');
* mm.matcher(pattern[, options]);
*
* var isMatch = mm.matcher('*.!(*a)');
* console.log(isMatch('a.a'));
* //=> false
* console.log(isMatch('a.b'));
* //=> true
* ```
* @param {String} `pattern` Glob pattern
* @param {Object} `options` See available [options](#options) for changing how matches are performed.
* @return {Function} Returns a matcher function.
* @api public
*/
micromatch.matcher = function matcher(pattern, options) {
if (Array.isArray(pattern)) {
return compose(pattern, options, matcher);
}
// if pattern is a regex
if (pattern instanceof RegExp) {
return test(pattern);
}
// if pattern is invalid
if (!utils.isString(pattern)) {
throw new TypeError('expected pattern to be an array, string or regex');
}
// if pattern is a non-glob string
if (!utils.hasSpecialChars(pattern)) {
if (options && options.nocase === true) {
pattern = pattern.toLowerCase();
}
return utils.matchPath(pattern, options);
}
// if pattern is a glob string
var re = micromatch.makeRe(pattern, options);
// if `options.matchBase` or `options.basename` is defined
if (micromatch.matchBase(pattern, options)) {
return utils.matchBasename(re, options);
}
function test(regex) {
var equals = utils.equalsPattern(options);
var unixify = utils.unixify(options);
return function(str) {
if (equals(str)) {
return true;
}
if (regex.test(unixify(str))) {
return true;
}
return false;
};
}
var fn = test(re);
Object.defineProperty(fn, 'result', {
configurable: true,
enumerable: false,
value: re.result
});
return fn;
};
/**
* Returns an array of matches captured by `pattern` in `string, or `null` if the pattern did not match.
*
* ```js
* var mm = require('micromatch');
* mm.capture(pattern, string[, options]);
*
* console.log(mm.capture('test/*.js', 'test/foo.js'));
* //=> ['foo']
* console.log(mm.capture('test/*.js', 'foo/bar.css'));
* //=> null
* ```
* @param {String} `pattern` Glob pattern to use for matching.
* @param {String} `string` String to match
* @param {Object} `options` See available [options](#options) for changing how matches are performed
* @return {Boolean} Returns an array of captures if the string matches the glob pattern, otherwise `null`.
* @api public
*/
micromatch.capture = function(pattern, str, options) {
var re = micromatch.makeRe(pattern, extend({capture: true}, options));
var unixify = utils.unixify(options);
function match() {
return function(string) {
var match = re.exec(unixify(string));
if (!match) {
return null;
}
return match.slice(1);
};
}
var capture = memoize('capture', pattern, options, match);
return capture(str);
};
/**
* Create a regular expression from the given glob `pattern`.
*
* ```js
* var mm = require('micromatch');
* mm.makeRe(pattern[, options]);
*
* console.log(mm.makeRe('*.js'));
* //=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/
* ```
* @param {String} `pattern` A glob pattern to convert to regex.
* @param {Object} `options` See available [options](#options) for changing how matches are performed.
* @return {RegExp} Returns a regex created from the given pattern.
* @api public
*/
micromatch.makeRe = function(pattern, options) {
if (typeof pattern !== 'string') {
throw new TypeError('expected pattern to be a string');
}
if (pattern.length > MAX_LENGTH) {
throw new Error('expected pattern to be less than ' + MAX_LENGTH + ' characters');
}
function makeRe() {
var result = micromatch.create(pattern, options);
var ast_array = [];
var output = result.map(function(obj) {
obj.ast.state = obj.state;
ast_array.push(obj.ast);
return obj.output;
});
var regex = toRegex(output.join('|'), options);
Object.defineProperty(regex, 'result', {
configurable: true,
enumerable: false,
value: ast_array
});
return regex;
}
return memoize('makeRe', pattern, options, makeRe);
};
/**
* Expand the given brace `pattern`.
*
* ```js
* var mm = require('micromatch');
* console.log(mm.braces('foo/{a,b}/bar'));
* //=> ['foo/(a|b)/bar']
*
* console.log(mm.braces('foo/{a,b}/bar', {expand: true}));
* //=> ['foo/(a|b)/bar']
* ```
* @param {String} `pattern` String with brace pattern to expand.
* @param {Object} `options` Any [options](#options) to change how expansion is performed. See the [braces][] library for all available options.
* @return {Array}
* @api public
*/
micromatch.braces = function(pattern, options) {
if (typeof pattern !== 'string' && !Array.isArray(pattern)) {
throw new TypeError('expected pattern to be an array or string');
}
function expand() {
if (options && options.nobrace === true || !/\{.*\}/.test(pattern)) {
return utils.arrayify(pattern);
}
return braces(pattern, options);
}
return memoize('braces', pattern, options, expand);
};
/**
* Proxy to the [micromatch.braces](#method), for parity with
* minimatch.
*/
micromatch.braceExpand = function(pattern, options) {
var opts = extend({}, options, {expand: true});
return micromatch.braces(pattern, opts);
};
/**
* Parses the given glob `pattern` and returns an array of abstract syntax
* trees (ASTs), with the compiled `output` and optional source `map` on
* each AST.
*
* ```js
* var mm = require('micromatch');
* mm.create(pattern[, options]);
*
* console.log(mm.create('abc/*.js'));
* // [{ options: { source: 'string', sourcemap: true },
* // state: {},
* // compilers:
* // { ... },
* // output: '(\\.[\\\\\\/])?abc\\/(?!\\.)(?=.)[^\\/]*?\\.js',
* // ast:
* // { type: 'root',
* // errors: [],
* // nodes:
* // [ ... ],
* // dot: false,
* // input: 'abc/*.js' },
* // parsingErrors: [],
* // map:
* // { version: 3,
* // sources: [ 'string' ],
* // names: [],
* // mappings: 'AAAA,GAAG,EAAC,kBAAC,EAAC,EAAE',
* // sourcesContent: [ 'abc/*.js' ] },
* // position: { line: 1, column: 28 },
* // content: {},
* // files: {},
* // idx: 6 }]
* ```
* @param {String} `pattern` Glob pattern to parse and compile.
* @param {Object} `options` Any [options](#options) to change how parsing and compiling is performed.
* @return {Object} Returns an object with the parsed AST, compiled string and optional source map.
* @api public
*/
micromatch.create = function(pattern, options) {
return memoize('create', pattern, options, function() {
function create(str, opts) {
return micromatch.compile(micromatch.parse(str, opts), opts);
}
pattern = micromatch.braces(pattern, options);
var len = pattern.length;
var idx = -1;
var res = [];
while (++idx < len) {
res.push(create(pattern[idx], options));
}
return res;
});
};
/**
* Parse the given `str` with the given `options`.
*
* ```js
* var mm = require('micromatch');
* mm.parse(pattern[, options]);
*
* var ast = mm.parse('a/{b,c}/d');
* console.log(ast);
* // { type: 'root',
* // errors: [],
* // input: 'a/{b,c}/d',
* // nodes:
* // [ { type: 'bos', val: '' },
* // { type: 'text', val: 'a/' },
* // { type: 'brace',
* // nodes:
* // [ { type: 'brace.open', val: '{' },
* // { type: 'text', val: 'b,c' },
* // { type: 'brace.close', val: '}' } ] },
* // { type: 'text', val: '/d' },
* // { type: 'eos', val: '' } ] }
* ```
* @param {String} `str`
* @param {Object} `options`
* @return {Object} Returns an AST
* @api public
*/
micromatch.parse = function(pattern, options) {
if (typeof pattern !== 'string') {
throw new TypeError('expected a string');
}
function parse() {
var snapdragon = utils.instantiate(null, options);
parsers(snapdragon, options);
var ast = snapdragon.parse(pattern, options);
utils.define(ast, 'snapdragon', snapdragon);
ast.input = pattern;
return ast;
}
return memoize('parse', pattern, options, parse);
};
/**
* Compile the given `ast` or string with the given `options`.
*
* ```js
* var mm = require('micromatch');
* mm.compile(ast[, options]);
*
* var ast = mm.parse('a/{b,c}/d');
* console.log(mm.compile(ast));
* // { options: { source: 'string' },
* // state: {},
* // compilers:
* // { eos: [Function],
* // noop: [Function],
* // bos: [Function],
* // brace: [Function],
* // 'brace.open': [Function],
* // text: [Function],
* // 'brace.close': [Function] },
* // output: [ 'a/(b|c)/d' ],
* // ast:
* // { ... },
* // parsingErrors: [] }
* ```
* @param {Object|String} `ast`
* @param {Object} `options`
* @return {Object} Returns an object that has an `output` property with the compiled string.
* @api public
*/
micromatch.compile = function(ast, options) {
if (typeof ast === 'string') {
ast = micromatch.parse(ast, options);
}
return memoize('compile', ast.input, options, function() {
var snapdragon = utils.instantiate(ast, options);
compilers(snapdragon, options);
return snapdragon.compile(ast, options);
});
};
/**
* Clear the regex cache.
*
* ```js
* mm.clearCache();
* ```
* @api public
*/
micromatch.clearCache = function() {
micromatch.cache.caches = {};
};
/**
* Returns true if the given value is effectively an empty string
*/
function isEmptyString(val) {
return String(val) === '' || String(val) === './';
}
/**
* Compose a matcher function with the given patterns.
* This allows matcher functions to be compiled once and
* called multiple times.
*/
function compose(patterns, options, matcher) {
var matchers;
return memoize('compose', String(patterns), options, function() {
return function(file) {
// delay composition until it's invoked the first time,
// after that it won't be called again
if (!matchers) {
matchers = [];
for (var i = 0; i < patterns.length; i++) {
matchers.push(matcher(patterns[i], options));
}
}
var len = matchers.length;
while (len--) {
if (matchers[len](file) === true) {
return true;
}
}
return false;
};
});
}
/**
* Memoize a generated regex or function. A unique key is generated
* from the `type` (usually method name), the `pattern`, and
* user-defined options.
*/
function memoize(type, pattern, options, fn) {
var key = utils.createKey(type + '=' + pattern, options);
if (options && options.cache === false) {
return fn(pattern, options);
}
if (cache.has(type, key)) {
return cache.get(type, key);
}
var val = fn(pattern, options);
cache.set(type, key, val);
return val;
}
/**
* Expose compiler, parser and cache on `micromatch`
*/
micromatch.compilers = compilers;
micromatch.parsers = parsers;
micromatch.caches = cache.caches;
/**
* Expose `micromatch`
* @type {Function}
*/
module.exports = micromatch;

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'use strict';
var nanomatch = require('nanomatch');
var extglob = require('extglob');
module.exports = function(snapdragon) {
var compilers = snapdragon.compiler.compilers;
var opts = snapdragon.options;
// register nanomatch compilers
snapdragon.use(nanomatch.compilers);
// get references to some specific nanomatch compilers before they
// are overridden by the extglob and/or custom compilers
var escape = compilers.escape;
var qmark = compilers.qmark;
var slash = compilers.slash;
var star = compilers.star;
var text = compilers.text;
var plus = compilers.plus;
var dot = compilers.dot;
// register extglob compilers or escape exglobs if disabled
if (opts.extglob === false || opts.noext === true) {
snapdragon.compiler.use(escapeExtglobs);
} else {
snapdragon.use(extglob.compilers);
}
snapdragon.use(function() {
this.options.star = this.options.star || function(/*node*/) {
return '[^\\\\/]*?';
};
});
// custom micromatch compilers
snapdragon.compiler
// reset referenced compiler
.set('dot', dot)
.set('escape', escape)
.set('plus', plus)
.set('slash', slash)
.set('qmark', qmark)
.set('star', star)
.set('text', text);
};
function escapeExtglobs(compiler) {
compiler.set('paren', function(node) {
var val = '';
visit(node, function(tok) {
if (tok.val) val += (/^\W/.test(tok.val) ? '\\' : '') + tok.val;
});
return this.emit(val, node);
});
/**
* Visit `node` with the given `fn`
*/
function visit(node, fn) {
return node.nodes ? mapVisit(node.nodes, fn) : fn(node);
}
/**
* Map visit over array of `nodes`.
*/
function mapVisit(nodes, fn) {
var len = nodes.length;
var idx = -1;
while (++idx < len) {
visit(nodes[idx], fn);
}
}
}

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'use strict';
var extglob = require('extglob');
var nanomatch = require('nanomatch');
var regexNot = require('regex-not');
var toRegex = require('to-regex');
var not;
/**
* Characters to use in negation regex (we want to "not" match
* characters that are matched by other parsers)
*/
var TEXT = '([!@*?+]?\\(|\\)|\\[:?(?=.*?:?\\])|:?\\]|[*+?!^$.\\\\/])+';
var createNotRegex = function(opts) {
return not || (not = textRegex(TEXT));
};
/**
* Parsers
*/
module.exports = function(snapdragon) {
var parsers = snapdragon.parser.parsers;
// register nanomatch parsers
snapdragon.use(nanomatch.parsers);
// get references to some specific nanomatch parsers before they
// are overridden by the extglob and/or parsers
var escape = parsers.escape;
var slash = parsers.slash;
var qmark = parsers.qmark;
var plus = parsers.plus;
var star = parsers.star;
var dot = parsers.dot;
// register extglob parsers
snapdragon.use(extglob.parsers);
// custom micromatch parsers
snapdragon.parser
.use(function() {
// override "notRegex" created in nanomatch parser
this.notRegex = /^\!+(?!\()/;
})
// reset the referenced parsers
.capture('escape', escape)
.capture('slash', slash)
.capture('qmark', qmark)
.capture('star', star)
.capture('plus', plus)
.capture('dot', dot)
/**
* Override `text` parser
*/
.capture('text', function() {
if (this.isInside('bracket')) return;
var pos = this.position();
var m = this.match(createNotRegex(this.options));
if (!m || !m[0]) return;
// escape regex boundary characters and simple brackets
var val = m[0].replace(/([[\]^$])/g, '\\$1');
return pos({
type: 'text',
val: val
});
});
};
/**
* Create text regex
*/
function textRegex(pattern) {
var notStr = regexNot.create(pattern, {contains: true, strictClose: false});
var prefix = '(?:[\\^]|\\\\|';
return toRegex(prefix + notStr + ')', {strictClose: false});
}

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'use strict';
var utils = module.exports;
var path = require('path');
/**
* Module dependencies
*/
var Snapdragon = require('snapdragon');
utils.define = require('define-property');
utils.diff = require('arr-diff');
utils.extend = require('extend-shallow');
utils.pick = require('object.pick');
utils.typeOf = require('kind-of');
utils.unique = require('array-unique');
/**
* Returns true if the platform is windows, or `path.sep` is `\\`.
* This is defined as a function to allow `path.sep` to be set in unit tests,
* or by the user, if there is a reason to do so.
* @return {Boolean}
*/
utils.isWindows = function() {
return path.sep === '\\' || process.platform === 'win32';
};
/**
* Get the `Snapdragon` instance to use
*/
utils.instantiate = function(ast, options) {
var snapdragon;
// if an instance was created by `.parse`, use that instance
if (utils.typeOf(ast) === 'object' && ast.snapdragon) {
snapdragon = ast.snapdragon;
// if the user supplies an instance on options, use that instance
} else if (utils.typeOf(options) === 'object' && options.snapdragon) {
snapdragon = options.snapdragon;
// create a new instance
} else {
snapdragon = new Snapdragon(options);
}
utils.define(snapdragon, 'parse', function(str, options) {
var parsed = Snapdragon.prototype.parse.apply(this, arguments);
parsed.input = str;
// escape unmatched brace/bracket/parens
var last = this.parser.stack.pop();
if (last && this.options.strictErrors !== true) {
var open = last.nodes[0];
var inner = last.nodes[1];
if (last.type === 'bracket') {
if (inner.val.charAt(0) === '[') {
inner.val = '\\' + inner.val;
}
} else {
open.val = '\\' + open.val;
var sibling = open.parent.nodes[1];
if (sibling.type === 'star') {
sibling.loose = true;
}
}
}
// add non-enumerable parser reference
utils.define(parsed, 'parser', this.parser);
return parsed;
});
return snapdragon;
};
/**
* Create the key to use for memoization. The key is generated
* by iterating over the options and concatenating key-value pairs
* to the pattern string.
*/
utils.createKey = function(pattern, options) {
if (utils.typeOf(options) !== 'object') {
return pattern;
}
var val = pattern;
var keys = Object.keys(options);
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
val += ';' + key + '=' + String(options[key]);
}
return val;
};
/**
* Cast `val` to an array
* @return {Array}
*/
utils.arrayify = function(val) {
if (typeof val === 'string') return [val];
return val ? (Array.isArray(val) ? val : [val]) : [];
};
/**
* Return true if `val` is a non-empty string
*/
utils.isString = function(val) {
return typeof val === 'string';
};
/**
* Return true if `val` is a non-empty string
*/
utils.isObject = function(val) {
return utils.typeOf(val) === 'object';
};
/**
* Returns true if the given `str` has special characters
*/
utils.hasSpecialChars = function(str) {
return /(?:(?:(^|\/)[!.])|[*?+()|\[\]{}]|[+@]\()/.test(str);
};
/**
* Escape regex characters in the given string
*/
utils.escapeRegex = function(str) {
return str.replace(/[-[\]{}()^$|*+?.\\\/\s]/g, '\\$&');
};
/**
* Normalize slashes in the given filepath.
*
* @param {String} `filepath`
* @return {String}
*/
utils.toPosixPath = function(str) {
return str.replace(/\\+/g, '/');
};
/**
* Strip backslashes before special characters in a string.
*
* @param {String} `str`
* @return {String}
*/
utils.unescape = function(str) {
return utils.toPosixPath(str.replace(/\\(?=[*+?!.])/g, ''));
};
/**
* Strip the prefix from a filepath
* @param {String} `fp`
* @return {String}
*/
utils.stripPrefix = function(str) {
if (str.charAt(0) !== '.') {
return str;
}
var ch = str.charAt(1);
if (utils.isSlash(ch)) {
return str.slice(2);
}
return str;
};
/**
* Returns true if the given str is an escaped or
* unescaped path character
*/
utils.isSlash = function(str) {
return str === '/' || str === '\\/' || str === '\\' || str === '\\\\';
};
/**
* Returns a function that returns true if the given
* pattern matches or contains a `filepath`
*
* @param {String} `pattern`
* @return {Function}
*/
utils.matchPath = function(pattern, options) {
return (options && options.contains)
? utils.containsPattern(pattern, options)
: utils.equalsPattern(pattern, options);
};
/**
* Returns true if the given (original) filepath or unixified path are equal
* to the given pattern.
*/
utils._equals = function(filepath, unixPath, pattern) {
return pattern === filepath || pattern === unixPath;
};
/**
* Returns true if the given (original) filepath or unixified path contain
* the given pattern.
*/
utils._contains = function(filepath, unixPath, pattern) {
return filepath.indexOf(pattern) !== -1 || unixPath.indexOf(pattern) !== -1;
};
/**
* Returns a function that returns true if the given
* pattern is the same as a given `filepath`
*
* @param {String} `pattern`
* @return {Function}
*/
utils.equalsPattern = function(pattern, options) {
var unixify = utils.unixify(options);
options = options || {};
return function fn(filepath) {
var equal = utils._equals(filepath, unixify(filepath), pattern);
if (equal === true || options.nocase !== true) {
return equal;
}
var lower = filepath.toLowerCase();
return utils._equals(lower, unixify(lower), pattern);
};
};
/**
* Returns a function that returns true if the given
* pattern contains a `filepath`
*
* @param {String} `pattern`
* @return {Function}
*/
utils.containsPattern = function(pattern, options) {
var unixify = utils.unixify(options);
options = options || {};
return function(filepath) {
var contains = utils._contains(filepath, unixify(filepath), pattern);
if (contains === true || options.nocase !== true) {
return contains;
}
var lower = filepath.toLowerCase();
return utils._contains(lower, unixify(lower), pattern);
};
};
/**
* Returns a function that returns true if the given
* regex matches the `filename` of a file path.
*
* @param {RegExp} `re` Matching regex
* @return {Function}
*/
utils.matchBasename = function(re) {
return function(filepath) {
return re.test(path.basename(filepath));
};
};
/**
* Determines the filepath to return based on the provided options.
* @return {any}
*/
utils.value = function(str, unixify, options) {
if (options && options.unixify === false) {
return str;
}
return unixify(str);
};
/**
* Returns a function that normalizes slashes in a string to forward
* slashes, strips `./` from beginning of paths, and optionally unescapes
* special characters.
* @return {Function}
*/
utils.unixify = function(options) {
options = options || {};
return function(filepath) {
if (utils.isWindows() || options.unixify === true) {
filepath = utils.toPosixPath(filepath);
}
if (options.stripPrefix !== false) {
filepath = utils.stripPrefix(filepath);
}
if (options.unescape === true) {
filepath = utils.unescape(filepath);
}
return filepath;
};
};

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@ -0,0 +1,147 @@
{
"name": "micromatch",
"description": "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.",
"version": "3.1.10",
"homepage": "https://github.com/micromatch/micromatch",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"contributors": [
"Amila Welihinda (amilajack.com)",
"Bogdan Chadkin (https://github.com/TrySound)",
"Brian Woodward (https://twitter.com/doowb)",
"Devon Govett (http://badassjs.com)",
"Elan Shanker (https://github.com/es128)",
"Fabrício Matté (https://ultcombo.js.org)",
"Jon Schlinkert (http://twitter.com/jonschlinkert)",
"Martin Kolárik (https://kolarik.sk)",
"Olsten Larck (https://i.am.charlike.online)",
"Paul Miller (paulmillr.com)",
"Tom Byrer (https://github.com/tomByrer)",
"Tyler Akins (http://rumkin.com)",
"(https://github.com/DianeLooney)"
],
"repository": "micromatch/micromatch",
"bugs": {
"url": "https://github.com/micromatch/micromatch/issues"
},
"license": "MIT",
"files": [
"index.js",
"lib"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"arr-diff": "^4.0.0",
"array-unique": "^0.3.2",
"braces": "^2.3.1",
"define-property": "^2.0.2",
"extend-shallow": "^3.0.2",
"extglob": "^2.0.4",
"fragment-cache": "^0.2.1",
"kind-of": "^6.0.2",
"nanomatch": "^1.2.9",
"object.pick": "^1.3.0",
"regex-not": "^1.0.0",
"snapdragon": "^0.8.1",
"to-regex": "^3.0.2"
},
"devDependencies": {
"bash-match": "^1.0.2",
"for-own": "^1.0.0",
"gulp": "^3.9.1",
"gulp-format-md": "^1.0.0",
"gulp-istanbul": "^1.1.3",
"gulp-mocha": "^5.0.0",
"gulp-unused": "^0.2.1",
"is-windows": "^1.0.2",
"minimatch": "^3.0.4",
"minimist": "^1.2.0",
"mocha": "^3.5.3",
"multimatch": "^2.1.0"
},
"keywords": [
"bash",
"expand",
"expansion",
"expression",
"file",
"files",
"filter",
"find",
"glob",
"globbing",
"globs",
"globstar",
"match",
"matcher",
"matches",
"matching",
"micromatch",
"minimatch",
"multimatch",
"path",
"pattern",
"patterns",
"regex",
"regexp",
"regular",
"shell",
"wildcard"
],
"lintDeps": {
"dependencies": {
"options": {
"lock": {
"snapdragon": "^0.8.1"
}
}
},
"devDependencies": {
"files": {
"options": {
"ignore": [
"benchmark/**"
]
}
}
}
},
"verb": {
"toc": "collapsible",
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"helpers": [
"./benchmark/helper.js"
],
"related": {
"list": [
"braces",
"expand-brackets",
"extglob",
"fill-range",
"nanomatch"
]
},
"lint": {
"reflinks": true
},
"reflinks": [
"expand-brackets",
"extglob",
"glob-object",
"minimatch",
"multimatch",
"snapdragon"
]
}
}

View file

@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2015-2017, Jon Schlinkert
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

View file

@ -0,0 +1,281 @@
# to-regex-range [![NPM version](https://img.shields.io/npm/v/to-regex-range.svg?style=flat)](https://www.npmjs.com/package/to-regex-range) [![NPM monthly downloads](https://img.shields.io/npm/dm/to-regex-range.svg?style=flat)](https://npmjs.org/package/to-regex-range) [![NPM total downloads](https://img.shields.io/npm/dt/to-regex-range.svg?style=flat)](https://npmjs.org/package/to-regex-range) [![Linux Build Status](https://img.shields.io/travis/micromatch/to-regex-range.svg?style=flat&label=Travis)](https://travis-ci.org/micromatch/to-regex-range)
> Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save to-regex-range
```
Install with [yarn](https://yarnpkg.com):
```sh
$ yarn add to-regex-range
```
<details>
<summary><strong>What does this do?</strong></summary>
<br>
This libary generates the `source` string to be passed to `new RegExp()` for matching a range of numbers.
**Example**
```js
var toRegexRange = require('to-regex-range');
var regex = new RegExp(toRegexRange('15', '95'));
```
A string is returned so that you can do whatever you need with it before passing it to `new RegExp()` (like adding `^` or `$` boundaries, defining flags, or combining it another string).
<br>
</details>
<details>
<summary><strong>Why use this library?</strong></summary>
<br>
### Convenience
Creating regular expressions for matching numbers gets deceptively complicated pretty fast.
For example, let's say you need a validation regex for matching part of a user-id, postal code, social security number, tax id, etc:
* regex for matching `1` => `/1/` (easy enough)
* regex for matching `1` through `5` => `/[1-5]/` (not bad...)
* regex for matching `1` or `5` => `/(1|5)/` (still easy...)
* regex for matching `1` through `50` => `/([1-9]|[1-4][0-9]|50)/` (uh-oh...)
* regex for matching `1` through `55` => `/([1-9]|[1-4][0-9]|5[0-5])/` (no prob, I can do this...)
* regex for matching `1` through `555` => `/([1-9]|[1-9][0-9]|[1-4][0-9]{2}|5[0-4][0-9]|55[0-5])/` (maybe not...)
* regex for matching `0001` through `5555` => `/(0{3}[1-9]|0{2}[1-9][0-9]|0[1-9][0-9]{2}|[1-4][0-9]{3}|5[0-4][0-9]{2}|55[0-4][0-9]|555[0-5])/` (okay, I get the point!)
The numbers are contrived, but they're also really basic. In the real world you might need to generate a regex on-the-fly for validation.
**Learn more**
If you're interested in learning more about [character classes](http://www.regular-expressions.info/charclass.html) and other regex features, I personally have always found [regular-expressions.info](http://www.regular-expressions.info/charclass.html) to be pretty useful.
### Heavily tested
As of April 27, 2017, this library runs [2,783,483 test assertions](./test/test.js) against generated regex-ranges to provide brute-force verification that results are indeed correct.
Tests run in ~870ms on my MacBook Pro, 2.5 GHz Intel Core i7.
### Highly optimized
Generated regular expressions are highly optimized:
* duplicate sequences and character classes are reduced using quantifiers
* smart enough to use `?` conditionals when number(s) or range(s) can be positive or negative
* uses fragment caching to avoid processing the same exact string more than once
<br>
</details>
## Usage
Add this library to your javascript application with the following line of code
```js
var toRegexRange = require('to-regex-range');
```
The main export is a function that takes two integers: the `min` value and `max` value (formatted as strings or numbers).
```js
var source = toRegexRange('15', '95');
//=> 1[5-9]|[2-8][0-9]|9[0-5]
var re = new RegExp('^' + source + '$');
console.log(re.test('14')); //=> false
console.log(re.test('50')); //=> true
console.log(re.test('94')); //=> true
console.log(re.test('96')); //=> false
```
## Options
### options.capture
**Type**: `boolean`
**Deafault**: `undefined`
Wrap the returned value in parentheses when there is more than one regex condition. Useful when you're dynamically generating ranges.
```js
console.log(toRegexRange('-10', '10'));
//=> -[1-9]|-?10|[0-9]
console.log(toRegexRange('-10', '10', {capture: true}));
//=> (-[1-9]|-?10|[0-9])
```
### options.shorthand
**Type**: `boolean`
**Deafault**: `undefined`
Use the regex shorthand for `[0-9]`:
```js
console.log(toRegexRange('0', '999999'));
//=> [0-9]|[1-9][0-9]{1,5}
console.log(toRegexRange('0', '999999', {shorthand: true}));
//=> \d|[1-9]\d{1,5}
```
### options.relaxZeros
**Type**: `boolean`
**Default**: `true`
This option only applies to **negative zero-padded ranges**. By default, when a negative zero-padded range is defined, the number of leading zeros is relaxed using `-0*`.
```js
console.log(toRegexRange('-001', '100'));
//=> -0*1|0{2}[0-9]|0[1-9][0-9]|100
console.log(toRegexRange('-001', '100', {relaxZeros: false}));
//=> -0{2}1|0{2}[0-9]|0[1-9][0-9]|100
```
<details>
<summary><strong>Why are zeros relaxed for negative zero-padded ranges by default?</strong></summary>
Consider the following.
```js
var regex = toRegexRange('-001', '100');
```
_Note that `-001` and `100` are both three digits long_.
In most zero-padding implementations, only a single leading zero is enough to indicate that zero-padding should be applied. Thus, the leading zeros would be "corrected" on the negative range in the example to `-01`, instead of `-001`, to make total length of each string no greater than the length of the largest number in the range (in other words, `-001` is 4 digits, but `100` is only three digits).
If zeros were not relaxed by default, you might expect the resulting regex of the above pattern to match `-001` - given that it's defined that way in the arguments - _but it wouldn't_. It would, however, match `-01`. This gets even more ambiguous with large ranges, like `-01` to `1000000`.
Thus, we relax zeros by default to provide a more predictable experience for users.
</details>
## Examples
| **Range** | **Result** | **Compile time** |
| --- | --- | --- |
| `toRegexRange('5, 5')` | `5` | _33μs_ |
| `toRegexRange('5, 6')` | `5\|6` | _53μs_ |
| `toRegexRange('29, 51')` | `29\|[34][0-9]\|5[01]` | _699μs_ |
| `toRegexRange('31, 877')` | `3[1-9]\|[4-9][0-9]\|[1-7][0-9]{2}\|8[0-6][0-9]\|87[0-7]` | _711μs_ |
| `toRegexRange('111, 555')` | `11[1-9]\|1[2-9][0-9]\|[2-4][0-9]{2}\|5[0-4][0-9]\|55[0-5]` | _62μs_ |
| `toRegexRange('-10, 10')` | `-[1-9]\|-?10\|[0-9]` | _74μs_ |
| `toRegexRange('-100, -10')` | `-1[0-9]\|-[2-9][0-9]\|-100` | _49μs_ |
| `toRegexRange('-100, 100')` | `-[1-9]\|-?[1-9][0-9]\|-?100\|[0-9]` | _45μs_ |
| `toRegexRange('001, 100')` | `0{2}[1-9]\|0[1-9][0-9]\|100` | _158μs_ |
| `toRegexRange('0010, 1000')` | `0{2}1[0-9]\|0{2}[2-9][0-9]\|0[1-9][0-9]{2}\|1000` | _61μs_ |
| `toRegexRange('1, 2')` | `1\|2` | _10μs_ |
| `toRegexRange('1, 5')` | `[1-5]` | _24μs_ |
| `toRegexRange('1, 10')` | `[1-9]\|10` | _23μs_ |
| `toRegexRange('1, 100')` | `[1-9]\|[1-9][0-9]\|100` | _30μs_ |
| `toRegexRange('1, 1000')` | `[1-9]\|[1-9][0-9]{1,2}\|1000` | _52μs_ |
| `toRegexRange('1, 10000')` | `[1-9]\|[1-9][0-9]{1,3}\|10000` | _47μs_ |
| `toRegexRange('1, 100000')` | `[1-9]\|[1-9][0-9]{1,4}\|100000` | _44μs_ |
| `toRegexRange('1, 1000000')` | `[1-9]\|[1-9][0-9]{1,5}\|1000000` | _49μs_ |
| `toRegexRange('1, 10000000')` | `[1-9]\|[1-9][0-9]{1,6}\|10000000` | _63μs_ |
## Heads up!
**Order of arguments**
When the `min` is larger than the `max`, values will be flipped to create a valid range:
```js
toRegexRange('51', '29');
```
Is effectively flipped to:
```js
toRegexRange('29', '51');
//=> 29|[3-4][0-9]|5[0-1]
```
**Steps / increments**
This library does not support steps (increments). A pr to add support would be welcome.
## History
### v2.0.0 - 2017-04-21
**New features**
Adds support for zero-padding!
### v1.0.0
**Optimizations**
Repeating ranges are now grouped using quantifiers. rocessing time is roughly the same, but the generated regex is much smaller, which should result in faster matching.
## Attribution
Inspired by the python library [range-regex](https://github.com/dimka665/range-regex).
## About
### Related projects
* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range "Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.")
* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range "Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`")
* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
* [repeat-element](https://www.npmjs.com/package/repeat-element): Create an array by repeating the given value n times. | [homepage](https://github.com/jonschlinkert/repeat-element "Create an array by repeating the given value n times.")
* [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string "Repeat the given string n times. Fastest implementation for repeating a string.")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Building docs
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
To generate the readme, run the following command:
```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```
### Running tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
```sh
$ npm install && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
### License
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on April 27, 2017._

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/*!
* to-regex-range <https://github.com/jonschlinkert/to-regex-range>
*
* Copyright (c) 2015, 2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
var repeat = require('repeat-string');
var isNumber = require('is-number');
var cache = {};
function toRegexRange(min, max, options) {
if (isNumber(min) === false) {
throw new RangeError('toRegexRange: first argument is invalid.');
}
if (typeof max === 'undefined' || min === max) {
return String(min);
}
if (isNumber(max) === false) {
throw new RangeError('toRegexRange: second argument is invalid.');
}
options = options || {};
var relax = String(options.relaxZeros);
var shorthand = String(options.shorthand);
var capture = String(options.capture);
var key = min + ':' + max + '=' + relax + shorthand + capture;
if (cache.hasOwnProperty(key)) {
return cache[key].result;
}
var a = Math.min(min, max);
var b = Math.max(min, max);
if (Math.abs(a - b) === 1) {
var result = min + '|' + max;
if (options.capture) {
return '(' + result + ')';
}
return result;
}
var isPadded = padding(min) || padding(max);
var positives = [];
var negatives = [];
var tok = {min: min, max: max, a: a, b: b};
if (isPadded) {
tok.isPadded = isPadded;
tok.maxLen = String(tok.max).length;
}
if (a < 0) {
var newMin = b < 0 ? Math.abs(b) : 1;
var newMax = Math.abs(a);
negatives = splitToPatterns(newMin, newMax, tok, options);
a = tok.a = 0;
}
if (b >= 0) {
positives = splitToPatterns(a, b, tok, options);
}
tok.negatives = negatives;
tok.positives = positives;
tok.result = siftPatterns(negatives, positives, options);
if (options.capture && (positives.length + negatives.length) > 1) {
tok.result = '(' + tok.result + ')';
}
cache[key] = tok;
return tok.result;
}
function siftPatterns(neg, pos, options) {
var onlyNegative = filterPatterns(neg, pos, '-', false, options) || [];
var onlyPositive = filterPatterns(pos, neg, '', false, options) || [];
var intersected = filterPatterns(neg, pos, '-?', true, options) || [];
var subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
return subpatterns.join('|');
}
function splitToRanges(min, max) {
min = Number(min);
max = Number(max);
var nines = 1;
var stops = [max];
var stop = +countNines(min, nines);
while (min <= stop && stop <= max) {
stops = push(stops, stop);
nines += 1;
stop = +countNines(min, nines);
}
var zeros = 1;
stop = countZeros(max + 1, zeros) - 1;
while (min < stop && stop <= max) {
stops = push(stops, stop);
zeros += 1;
stop = countZeros(max + 1, zeros) - 1;
}
stops.sort(compare);
return stops;
}
/**
* Convert a range to a regex pattern
* @param {Number} `start`
* @param {Number} `stop`
* @return {String}
*/
function rangeToPattern(start, stop, options) {
if (start === stop) {
return {pattern: String(start), digits: []};
}
var zipped = zip(String(start), String(stop));
var len = zipped.length, i = -1;
var pattern = '';
var digits = 0;
while (++i < len) {
var numbers = zipped[i];
var startDigit = numbers[0];
var stopDigit = numbers[1];
if (startDigit === stopDigit) {
pattern += startDigit;
} else if (startDigit !== '0' || stopDigit !== '9') {
pattern += toCharacterClass(startDigit, stopDigit);
} else {
digits += 1;
}
}
if (digits) {
pattern += options.shorthand ? '\\d' : '[0-9]';
}
return { pattern: pattern, digits: [digits] };
}
function splitToPatterns(min, max, tok, options) {
var ranges = splitToRanges(min, max);
var len = ranges.length;
var idx = -1;
var tokens = [];
var start = min;
var prev;
while (++idx < len) {
var range = ranges[idx];
var obj = rangeToPattern(start, range, options);
var zeros = '';
if (!tok.isPadded && prev && prev.pattern === obj.pattern) {
if (prev.digits.length > 1) {
prev.digits.pop();
}
prev.digits.push(obj.digits[0]);
prev.string = prev.pattern + toQuantifier(prev.digits);
start = range + 1;
continue;
}
if (tok.isPadded) {
zeros = padZeros(range, tok);
}
obj.string = zeros + obj.pattern + toQuantifier(obj.digits);
tokens.push(obj);
start = range + 1;
prev = obj;
}
return tokens;
}
function filterPatterns(arr, comparison, prefix, intersection, options) {
var res = [];
for (var i = 0; i < arr.length; i++) {
var tok = arr[i];
var ele = tok.string;
if (options.relaxZeros !== false) {
if (prefix === '-' && ele.charAt(0) === '0') {
if (ele.charAt(1) === '{') {
ele = '0*' + ele.replace(/^0\{\d+\}/, '');
} else {
ele = '0*' + ele.slice(1);
}
}
}
if (!intersection && !contains(comparison, 'string', ele)) {
res.push(prefix + ele);
}
if (intersection && contains(comparison, 'string', ele)) {
res.push(prefix + ele);
}
}
return res;
}
/**
* Zip strings (`for in` can be used on string characters)
*/
function zip(a, b) {
var arr = [];
for (var ch in a) arr.push([a[ch], b[ch]]);
return arr;
}
function compare(a, b) {
return a > b ? 1 : b > a ? -1 : 0;
}
function push(arr, ele) {
if (arr.indexOf(ele) === -1) arr.push(ele);
return arr;
}
function contains(arr, key, val) {
for (var i = 0; i < arr.length; i++) {
if (arr[i][key] === val) {
return true;
}
}
return false;
}
function countNines(min, len) {
return String(min).slice(0, -len) + repeat('9', len);
}
function countZeros(integer, zeros) {
return integer - (integer % Math.pow(10, zeros));
}
function toQuantifier(digits) {
var start = digits[0];
var stop = digits[1] ? (',' + digits[1]) : '';
if (!stop && (!start || start === 1)) {
return '';
}
return '{' + start + stop + '}';
}
function toCharacterClass(a, b) {
return '[' + a + ((b - a === 1) ? '' : '-') + b + ']';
}
function padding(str) {
return /^-?(0+)\d/.exec(str);
}
function padZeros(val, tok) {
if (tok.isPadded) {
var diff = Math.abs(tok.maxLen - String(val).length);
switch (diff) {
case 0:
return '';
case 1:
return '0';
default: {
return '0{' + diff + '}';
}
}
}
return val;
}
/**
* Expose `toRegexRange`
*/
module.exports = toRegexRange;

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{
"name": "to-regex-range",
"description": "Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.",
"version": "2.1.1",
"homepage": "https://github.com/micromatch/to-regex-range",
"author": "Jon Schlinkert (https://github.com/jonschlinkert)",
"repository": "micromatch/to-regex-range",
"bugs": {
"url": "https://github.com/micromatch/to-regex-range/issues"
},
"license": "MIT",
"files": [
"index.js"
],
"main": "index.js",
"engines": {
"node": ">=0.10.0"
},
"scripts": {
"test": "mocha"
},
"dependencies": {
"is-number": "^3.0.0",
"repeat-string": "^1.6.1"
},
"devDependencies": {
"fill-range": "^3.1.1",
"gulp-format-md": "^0.1.12",
"mocha": "^3.2.0",
"text-table": "^0.2.0",
"time-diff": "^0.3.1"
},
"keywords": [
"alpha",
"alphabetical",
"bash",
"brace",
"date",
"expand",
"expansion",
"glob",
"match",
"matches",
"matching",
"number",
"numerical",
"range",
"ranges",
"regex",
"sequence",
"sh",
"to",
"year"
],
"verb": {
"related": {
"list": [
"expand-range",
"fill-range",
"micromatch",
"repeat-element",
"repeat-string"
]
},
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"lint": {
"reflinks": true
},
"helpers": [
"./examples.js"
],
"reflinks": [
"0-5",
"0-9",
"1-5",
"1-9"
]
}
}