go: include vendored modules
RHEL requires the source code for dependencies to be included in the srpm. The spec file already expects that, but we've only included the vendored modules (i.e., the `vendor` directory) in the `rhel-8.2.` branch. Move vendoring to master, so that we can build RHEL packages from it as well. This commit is the result of running `go mod vendor`, which includes the vendored sources and updates go.mod and go.sum files. Fedora requires the opposite: dependencies should not be vendored. The spec file already ignores the `vendor` directory by default.
This commit is contained in:
Lars Karlitski
parent
4f2ac6a687
commit
6703055925
468 changed files with 268066 additions and 0 deletions
592
vendor/github.com/BurntSushi/toml/parse.go
generated
vendored
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592
vendor/github.com/BurntSushi/toml/parse.go
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vendored
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@ -0,0 +1,592 @@
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package toml
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import (
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"fmt"
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"strconv"
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"strings"
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"time"
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"unicode"
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"unicode/utf8"
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)
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type parser struct {
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mapping map[string]interface{}
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types map[string]tomlType
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lx *lexer
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// A list of keys in the order that they appear in the TOML data.
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ordered []Key
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// the full key for the current hash in scope
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context Key
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// the base key name for everything except hashes
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currentKey string
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// rough approximation of line number
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approxLine int
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// A map of 'key.group.names' to whether they were created implicitly.
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implicits map[string]bool
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}
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type parseError string
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func (pe parseError) Error() string {
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return string(pe)
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}
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func parse(data string) (p *parser, err error) {
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defer func() {
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if r := recover(); r != nil {
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var ok bool
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if err, ok = r.(parseError); ok {
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return
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}
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panic(r)
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}
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}()
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p = &parser{
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mapping: make(map[string]interface{}),
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types: make(map[string]tomlType),
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lx: lex(data),
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ordered: make([]Key, 0),
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implicits: make(map[string]bool),
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}
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for {
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item := p.next()
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if item.typ == itemEOF {
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break
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}
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p.topLevel(item)
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}
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return p, nil
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}
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func (p *parser) panicf(format string, v ...interface{}) {
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msg := fmt.Sprintf("Near line %d (last key parsed '%s'): %s",
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p.approxLine, p.current(), fmt.Sprintf(format, v...))
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panic(parseError(msg))
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}
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func (p *parser) next() item {
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it := p.lx.nextItem()
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if it.typ == itemError {
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p.panicf("%s", it.val)
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}
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return it
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}
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func (p *parser) bug(format string, v ...interface{}) {
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panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
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}
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func (p *parser) expect(typ itemType) item {
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it := p.next()
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p.assertEqual(typ, it.typ)
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return it
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}
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func (p *parser) assertEqual(expected, got itemType) {
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if expected != got {
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p.bug("Expected '%s' but got '%s'.", expected, got)
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}
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}
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func (p *parser) topLevel(item item) {
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switch item.typ {
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case itemCommentStart:
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p.approxLine = item.line
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p.expect(itemText)
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case itemTableStart:
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kg := p.next()
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p.approxLine = kg.line
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var key Key
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for ; kg.typ != itemTableEnd && kg.typ != itemEOF; kg = p.next() {
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key = append(key, p.keyString(kg))
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}
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p.assertEqual(itemTableEnd, kg.typ)
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p.establishContext(key, false)
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p.setType("", tomlHash)
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p.ordered = append(p.ordered, key)
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case itemArrayTableStart:
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kg := p.next()
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p.approxLine = kg.line
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var key Key
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for ; kg.typ != itemArrayTableEnd && kg.typ != itemEOF; kg = p.next() {
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key = append(key, p.keyString(kg))
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}
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p.assertEqual(itemArrayTableEnd, kg.typ)
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p.establishContext(key, true)
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p.setType("", tomlArrayHash)
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p.ordered = append(p.ordered, key)
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case itemKeyStart:
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kname := p.next()
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p.approxLine = kname.line
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p.currentKey = p.keyString(kname)
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val, typ := p.value(p.next())
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p.setValue(p.currentKey, val)
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p.setType(p.currentKey, typ)
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p.ordered = append(p.ordered, p.context.add(p.currentKey))
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p.currentKey = ""
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default:
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p.bug("Unexpected type at top level: %s", item.typ)
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}
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}
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// Gets a string for a key (or part of a key in a table name).
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func (p *parser) keyString(it item) string {
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switch it.typ {
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case itemText:
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return it.val
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case itemString, itemMultilineString,
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itemRawString, itemRawMultilineString:
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s, _ := p.value(it)
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return s.(string)
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default:
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p.bug("Unexpected key type: %s", it.typ)
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panic("unreachable")
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}
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}
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// value translates an expected value from the lexer into a Go value wrapped
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// as an empty interface.
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func (p *parser) value(it item) (interface{}, tomlType) {
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switch it.typ {
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case itemString:
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return p.replaceEscapes(it.val), p.typeOfPrimitive(it)
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case itemMultilineString:
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trimmed := stripFirstNewline(stripEscapedWhitespace(it.val))
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return p.replaceEscapes(trimmed), p.typeOfPrimitive(it)
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case itemRawString:
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return it.val, p.typeOfPrimitive(it)
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case itemRawMultilineString:
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return stripFirstNewline(it.val), p.typeOfPrimitive(it)
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case itemBool:
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switch it.val {
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case "true":
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return true, p.typeOfPrimitive(it)
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case "false":
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return false, p.typeOfPrimitive(it)
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}
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p.bug("Expected boolean value, but got '%s'.", it.val)
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case itemInteger:
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if !numUnderscoresOK(it.val) {
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p.panicf("Invalid integer %q: underscores must be surrounded by digits",
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it.val)
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}
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val := strings.Replace(it.val, "_", "", -1)
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num, err := strconv.ParseInt(val, 10, 64)
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if err != nil {
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// Distinguish integer values. Normally, it'd be a bug if the lexer
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// provides an invalid integer, but it's possible that the number is
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// out of range of valid values (which the lexer cannot determine).
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// So mark the former as a bug but the latter as a legitimate user
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// error.
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if e, ok := err.(*strconv.NumError); ok &&
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e.Err == strconv.ErrRange {
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p.panicf("Integer '%s' is out of the range of 64-bit "+
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"signed integers.", it.val)
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} else {
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p.bug("Expected integer value, but got '%s'.", it.val)
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}
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}
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return num, p.typeOfPrimitive(it)
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case itemFloat:
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parts := strings.FieldsFunc(it.val, func(r rune) bool {
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switch r {
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case '.', 'e', 'E':
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return true
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}
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return false
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})
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for _, part := range parts {
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if !numUnderscoresOK(part) {
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p.panicf("Invalid float %q: underscores must be "+
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"surrounded by digits", it.val)
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}
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}
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if !numPeriodsOK(it.val) {
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// As a special case, numbers like '123.' or '1.e2',
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// which are valid as far as Go/strconv are concerned,
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// must be rejected because TOML says that a fractional
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// part consists of '.' followed by 1+ digits.
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p.panicf("Invalid float %q: '.' must be followed "+
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"by one or more digits", it.val)
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}
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val := strings.Replace(it.val, "_", "", -1)
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num, err := strconv.ParseFloat(val, 64)
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if err != nil {
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if e, ok := err.(*strconv.NumError); ok &&
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e.Err == strconv.ErrRange {
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p.panicf("Float '%s' is out of the range of 64-bit "+
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"IEEE-754 floating-point numbers.", it.val)
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} else {
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p.panicf("Invalid float value: %q", it.val)
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}
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}
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return num, p.typeOfPrimitive(it)
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case itemDatetime:
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var t time.Time
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var ok bool
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var err error
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for _, format := range []string{
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"2006-01-02T15:04:05Z07:00",
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"2006-01-02T15:04:05",
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"2006-01-02",
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} {
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t, err = time.ParseInLocation(format, it.val, time.Local)
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if err == nil {
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ok = true
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break
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}
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}
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if !ok {
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p.panicf("Invalid TOML Datetime: %q.", it.val)
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}
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return t, p.typeOfPrimitive(it)
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case itemArray:
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array := make([]interface{}, 0)
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types := make([]tomlType, 0)
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for it = p.next(); it.typ != itemArrayEnd; it = p.next() {
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if it.typ == itemCommentStart {
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p.expect(itemText)
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continue
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}
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val, typ := p.value(it)
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array = append(array, val)
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types = append(types, typ)
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}
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return array, p.typeOfArray(types)
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case itemInlineTableStart:
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var (
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hash = make(map[string]interface{})
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outerContext = p.context
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outerKey = p.currentKey
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)
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p.context = append(p.context, p.currentKey)
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p.currentKey = ""
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for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
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if it.typ != itemKeyStart {
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p.bug("Expected key start but instead found %q, around line %d",
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it.val, p.approxLine)
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}
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if it.typ == itemCommentStart {
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p.expect(itemText)
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continue
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}
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// retrieve key
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k := p.next()
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p.approxLine = k.line
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kname := p.keyString(k)
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// retrieve value
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p.currentKey = kname
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val, typ := p.value(p.next())
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// make sure we keep metadata up to date
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p.setType(kname, typ)
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p.ordered = append(p.ordered, p.context.add(p.currentKey))
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hash[kname] = val
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}
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p.context = outerContext
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p.currentKey = outerKey
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return hash, tomlHash
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}
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p.bug("Unexpected value type: %s", it.typ)
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panic("unreachable")
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}
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// numUnderscoresOK checks whether each underscore in s is surrounded by
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// characters that are not underscores.
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func numUnderscoresOK(s string) bool {
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accept := false
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for _, r := range s {
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if r == '_' {
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if !accept {
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return false
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}
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accept = false
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continue
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}
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accept = true
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}
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return accept
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}
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// numPeriodsOK checks whether every period in s is followed by a digit.
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func numPeriodsOK(s string) bool {
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period := false
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for _, r := range s {
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if period && !isDigit(r) {
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return false
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}
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period = r == '.'
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}
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return !period
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}
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// establishContext sets the current context of the parser,
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// where the context is either a hash or an array of hashes. Which one is
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// set depends on the value of the `array` parameter.
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//
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// Establishing the context also makes sure that the key isn't a duplicate, and
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// will create implicit hashes automatically.
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func (p *parser) establishContext(key Key, array bool) {
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var ok bool
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// Always start at the top level and drill down for our context.
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hashContext := p.mapping
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keyContext := make(Key, 0)
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// We only need implicit hashes for key[0:-1]
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for _, k := range key[0 : len(key)-1] {
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_, ok = hashContext[k]
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keyContext = append(keyContext, k)
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// No key? Make an implicit hash and move on.
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if !ok {
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p.addImplicit(keyContext)
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hashContext[k] = make(map[string]interface{})
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}
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// If the hash context is actually an array of tables, then set
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// the hash context to the last element in that array.
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//
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// Otherwise, it better be a table, since this MUST be a key group (by
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// virtue of it not being the last element in a key).
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switch t := hashContext[k].(type) {
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case []map[string]interface{}:
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hashContext = t[len(t)-1]
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case map[string]interface{}:
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hashContext = t
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default:
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p.panicf("Key '%s' was already created as a hash.", keyContext)
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}
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}
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p.context = keyContext
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if array {
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// If this is the first element for this array, then allocate a new
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// list of tables for it.
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k := key[len(key)-1]
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if _, ok := hashContext[k]; !ok {
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hashContext[k] = make([]map[string]interface{}, 0, 5)
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}
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// Add a new table. But make sure the key hasn't already been used
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// for something else.
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if hash, ok := hashContext[k].([]map[string]interface{}); ok {
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hashContext[k] = append(hash, make(map[string]interface{}))
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} else {
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p.panicf("Key '%s' was already created and cannot be used as "+
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"an array.", keyContext)
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}
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} else {
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p.setValue(key[len(key)-1], make(map[string]interface{}))
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}
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p.context = append(p.context, key[len(key)-1])
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}
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// setValue sets the given key to the given value in the current context.
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// It will make sure that the key hasn't already been defined, account for
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// implicit key groups.
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func (p *parser) setValue(key string, value interface{}) {
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var tmpHash interface{}
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var ok bool
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hash := p.mapping
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keyContext := make(Key, 0)
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for _, k := range p.context {
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keyContext = append(keyContext, k)
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if tmpHash, ok = hash[k]; !ok {
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p.bug("Context for key '%s' has not been established.", keyContext)
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}
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switch t := tmpHash.(type) {
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case []map[string]interface{}:
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// The context is a table of hashes. Pick the most recent table
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// defined as the current hash.
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hash = t[len(t)-1]
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case map[string]interface{}:
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hash = t
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default:
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p.bug("Expected hash to have type 'map[string]interface{}', but "+
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"it has '%T' instead.", tmpHash)
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}
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}
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keyContext = append(keyContext, key)
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if _, ok := hash[key]; ok {
|
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// Typically, if the given key has already been set, then we have
|
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// to raise an error since duplicate keys are disallowed. However,
|
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// it's possible that a key was previously defined implicitly. In this
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// case, it is allowed to be redefined concretely. (See the
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// `tests/valid/implicit-and-explicit-after.toml` test in `toml-test`.)
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//
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// But we have to make sure to stop marking it as an implicit. (So that
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// another redefinition provokes an error.)
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//
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// Note that since it has already been defined (as a hash), we don't
|
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// want to overwrite it. So our business is done.
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if p.isImplicit(keyContext) {
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p.removeImplicit(keyContext)
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return
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}
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// Otherwise, we have a concrete key trying to override a previous
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// key, which is *always* wrong.
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p.panicf("Key '%s' has already been defined.", keyContext)
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}
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hash[key] = value
|
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}
|
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|
||||
// setType sets the type of a particular value at a given key.
|
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// It should be called immediately AFTER setValue.
|
||||
//
|
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// Note that if `key` is empty, then the type given will be applied to the
|
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// current context (which is either a table or an array of tables).
|
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func (p *parser) setType(key string, typ tomlType) {
|
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keyContext := make(Key, 0, len(p.context)+1)
|
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for _, k := range p.context {
|
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keyContext = append(keyContext, k)
|
||||
}
|
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if len(key) > 0 { // allow type setting for hashes
|
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keyContext = append(keyContext, key)
|
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}
|
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p.types[keyContext.String()] = typ
|
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}
|
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|
||||
// addImplicit sets the given Key as having been created implicitly.
|
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func (p *parser) addImplicit(key Key) {
|
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p.implicits[key.String()] = true
|
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}
|
||||
|
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// removeImplicit stops tagging the given key as having been implicitly
|
||||
// created.
|
||||
func (p *parser) removeImplicit(key Key) {
|
||||
p.implicits[key.String()] = false
|
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}
|
||||
|
||||
// isImplicit returns true if the key group pointed to by the key was created
|
||||
// implicitly.
|
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func (p *parser) isImplicit(key Key) bool {
|
||||
return p.implicits[key.String()]
|
||||
}
|
||||
|
||||
// current returns the full key name of the current context.
|
||||
func (p *parser) current() string {
|
||||
if len(p.currentKey) == 0 {
|
||||
return p.context.String()
|
||||
}
|
||||
if len(p.context) == 0 {
|
||||
return p.currentKey
|
||||
}
|
||||
return fmt.Sprintf("%s.%s", p.context, p.currentKey)
|
||||
}
|
||||
|
||||
func stripFirstNewline(s string) string {
|
||||
if len(s) == 0 || s[0] != '\n' {
|
||||
return s
|
||||
}
|
||||
return s[1:]
|
||||
}
|
||||
|
||||
func stripEscapedWhitespace(s string) string {
|
||||
esc := strings.Split(s, "\\\n")
|
||||
if len(esc) > 1 {
|
||||
for i := 1; i < len(esc); i++ {
|
||||
esc[i] = strings.TrimLeftFunc(esc[i], unicode.IsSpace)
|
||||
}
|
||||
}
|
||||
return strings.Join(esc, "")
|
||||
}
|
||||
|
||||
func (p *parser) replaceEscapes(str string) string {
|
||||
var replaced []rune
|
||||
s := []byte(str)
|
||||
r := 0
|
||||
for r < len(s) {
|
||||
if s[r] != '\\' {
|
||||
c, size := utf8.DecodeRune(s[r:])
|
||||
r += size
|
||||
replaced = append(replaced, c)
|
||||
continue
|
||||
}
|
||||
r += 1
|
||||
if r >= len(s) {
|
||||
p.bug("Escape sequence at end of string.")
|
||||
return ""
|
||||
}
|
||||
switch s[r] {
|
||||
default:
|
||||
p.bug("Expected valid escape code after \\, but got %q.", s[r])
|
||||
return ""
|
||||
case 'b':
|
||||
replaced = append(replaced, rune(0x0008))
|
||||
r += 1
|
||||
case 't':
|
||||
replaced = append(replaced, rune(0x0009))
|
||||
r += 1
|
||||
case 'n':
|
||||
replaced = append(replaced, rune(0x000A))
|
||||
r += 1
|
||||
case 'f':
|
||||
replaced = append(replaced, rune(0x000C))
|
||||
r += 1
|
||||
case 'r':
|
||||
replaced = append(replaced, rune(0x000D))
|
||||
r += 1
|
||||
case '"':
|
||||
replaced = append(replaced, rune(0x0022))
|
||||
r += 1
|
||||
case '\\':
|
||||
replaced = append(replaced, rune(0x005C))
|
||||
r += 1
|
||||
case 'u':
|
||||
// At this point, we know we have a Unicode escape of the form
|
||||
// `uXXXX` at [r, r+5). (Because the lexer guarantees this
|
||||
// for us.)
|
||||
escaped := p.asciiEscapeToUnicode(s[r+1 : r+5])
|
||||
replaced = append(replaced, escaped)
|
||||
r += 5
|
||||
case 'U':
|
||||
// At this point, we know we have a Unicode escape of the form
|
||||
// `uXXXX` at [r, r+9). (Because the lexer guarantees this
|
||||
// for us.)
|
||||
escaped := p.asciiEscapeToUnicode(s[r+1 : r+9])
|
||||
replaced = append(replaced, escaped)
|
||||
r += 9
|
||||
}
|
||||
}
|
||||
return string(replaced)
|
||||
}
|
||||
|
||||
func (p *parser) asciiEscapeToUnicode(bs []byte) rune {
|
||||
s := string(bs)
|
||||
hex, err := strconv.ParseUint(strings.ToLower(s), 16, 32)
|
||||
if err != nil {
|
||||
p.bug("Could not parse '%s' as a hexadecimal number, but the "+
|
||||
"lexer claims it's OK: %s", s, err)
|
||||
}
|
||||
if !utf8.ValidRune(rune(hex)) {
|
||||
p.panicf("Escaped character '\\u%s' is not valid UTF-8.", s)
|
||||
}
|
||||
return rune(hex)
|
||||
}
|
||||
|
||||
func isStringType(ty itemType) bool {
|
||||
return ty == itemString || ty == itemMultilineString ||
|
||||
ty == itemRawString || ty == itemRawMultilineString
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue