986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
82 lines
1.4 KiB
Go
82 lines
1.4 KiB
Go
// +build !windows
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// +build !js
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// +build !appengine
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package runewidth
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import (
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"os"
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"regexp"
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"strings"
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)
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var reLoc = regexp.MustCompile(`^[a-z][a-z][a-z]?(?:_[A-Z][A-Z])?\.(.+)`)
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var mblenTable = map[string]int{
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"utf-8": 6,
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"utf8": 6,
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"jis": 8,
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"eucjp": 3,
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"euckr": 2,
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"euccn": 2,
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"sjis": 2,
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"cp932": 2,
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"cp51932": 2,
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"cp936": 2,
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"cp949": 2,
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"cp950": 2,
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"big5": 2,
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"gbk": 2,
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"gb2312": 2,
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}
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func isEastAsian(locale string) bool {
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charset := strings.ToLower(locale)
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r := reLoc.FindStringSubmatch(locale)
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if len(r) == 2 {
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charset = strings.ToLower(r[1])
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}
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if strings.HasSuffix(charset, "@cjk_narrow") {
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return false
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}
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for pos, b := range []byte(charset) {
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if b == '@' {
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charset = charset[:pos]
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break
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}
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}
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max := 1
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if m, ok := mblenTable[charset]; ok {
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max = m
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}
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if max > 1 && (charset[0] != 'u' ||
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strings.HasPrefix(locale, "ja") ||
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strings.HasPrefix(locale, "ko") ||
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strings.HasPrefix(locale, "zh")) {
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return true
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}
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return false
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}
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// IsEastAsian return true if the current locale is CJK
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func IsEastAsian() bool {
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locale := os.Getenv("LC_ALL")
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if locale == "" {
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locale = os.Getenv("LC_CTYPE")
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}
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if locale == "" {
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locale = os.Getenv("LANG")
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}
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// ignore C locale
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if locale == "POSIX" || locale == "C" {
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return false
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}
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if len(locale) > 1 && locale[0] == 'C' && (locale[1] == '.' || locale[1] == '-') {
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return false
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}
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return isEastAsian(locale)
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}
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