diff options
Diffstat (limited to 'vendor/github.com/mattn/go-runewidth/runewidth_posix.go')
-rw-r--r-- | vendor/github.com/mattn/go-runewidth/runewidth_posix.go | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_posix.go b/vendor/github.com/mattn/go-runewidth/runewidth_posix.go deleted file mode 100644 index 66a58b5d8..000000000 --- a/vendor/github.com/mattn/go-runewidth/runewidth_posix.go +++ /dev/null @@ -1,79 +0,0 @@ -// +build !windows -// +build !js -// +build !appengine - -package runewidth - -import ( - "os" - "regexp" - "strings" -) - -var reLoc = regexp.MustCompile(`^[a-z][a-z][a-z]?(?:_[A-Z][A-Z])?\.(.+)`) - -var mblenTable = map[string]int{ - "utf-8": 6, - "utf8": 6, - "jis": 8, - "eucjp": 3, - "euckr": 2, - "euccn": 2, - "sjis": 2, - "cp932": 2, - "cp51932": 2, - "cp936": 2, - "cp949": 2, - "cp950": 2, - "big5": 2, - "gbk": 2, - "gb2312": 2, -} - -func isEastAsian(locale string) bool { - charset := strings.ToLower(locale) - r := reLoc.FindStringSubmatch(locale) - if len(r) == 2 { - charset = strings.ToLower(r[1]) - } - - if strings.HasSuffix(charset, "@cjk_narrow") { - return false - } - - for pos, b := range []byte(charset) { - if b == '@' { - charset = charset[:pos] - break - } - } - max := 1 - if m, ok := mblenTable[charset]; ok { - max = m - } - if max > 1 && (charset[0] != 'u' || - strings.HasPrefix(locale, "ja") || - strings.HasPrefix(locale, "ko") || - strings.HasPrefix(locale, "zh")) { - return true - } - return false -} - -// IsEastAsian return true if the current locale is CJK -func IsEastAsian() bool { - locale := os.Getenv("LC_CTYPE") - if locale == "" { - locale = os.Getenv("LANG") - } - - // ignore C locale - if locale == "POSIX" || locale == "C" { - return false - } - if len(locale) > 1 && locale[0] == 'C' && (locale[1] == '.' || locale[1] == '-') { - return false - } - - return isEastAsian(locale) -} |