diff options
Diffstat (limited to 'vendor/golang.org/x/text/internal/language/parse.go')
| -rw-r--r-- | vendor/golang.org/x/text/internal/language/parse.go | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/vendor/golang.org/x/text/internal/language/parse.go b/vendor/golang.org/x/text/internal/language/parse.go index 47ee0fed1..aad1e0acf 100644 --- a/vendor/golang.org/x/text/internal/language/parse.go +++ b/vendor/golang.org/x/text/internal/language/parse.go @@ -270,7 +270,7 @@ func parse(scan *scanner, s string) (t Tag, err error) { } else if n >= 4 { return Und, ErrSyntax } else { // the usual case - t, end = parseTag(scan) + t, end = parseTag(scan, true) if n := len(scan.token); n == 1 { t.pExt = uint16(end) end = parseExtensions(scan) @@ -296,7 +296,8 @@ func parse(scan *scanner, s string) (t Tag, err error) { // parseTag parses language, script, region and variants. // It returns a Tag and the end position in the input that was parsed. -func parseTag(scan *scanner) (t Tag, end int) { +// If doNorm is true, then <lang>-<extlang> will be normalized to <extlang>. +func parseTag(scan *scanner, doNorm bool) (t Tag, end int) { var e error // TODO: set an error if an unknown lang, script or region is encountered. t.LangID, e = getLangID(scan.token) @@ -307,14 +308,17 @@ func parseTag(scan *scanner) (t Tag, end int) { for len(scan.token) == 3 && isAlpha(scan.token[0]) { // From http://tools.ietf.org/html/bcp47, <lang>-<extlang> tags are equivalent // to a tag of the form <extlang>. - lang, e := getLangID(scan.token) - if lang != 0 { - t.LangID = lang - copy(scan.b[langStart:], lang.String()) - scan.b[langStart+3] = '-' - scan.start = langStart + 4 + if doNorm { + lang, e := getLangID(scan.token) + if lang != 0 { + t.LangID = lang + langStr := lang.String() + copy(scan.b[langStart:], langStr) + scan.b[langStart+len(langStr)] = '-' + scan.start = langStart + len(langStr) + 1 + } + scan.gobble(e) } - scan.gobble(e) end = scan.scan() } if len(scan.token) == 4 && isAlpha(scan.token[0]) { @@ -559,7 +563,7 @@ func parseExtension(scan *scanner) int { case 't': // https://www.ietf.org/rfc/rfc6497.txt scan.scan() if n := len(scan.token); n >= 2 && n <= 3 && isAlpha(scan.token[1]) { - _, end = parseTag(scan) + _, end = parseTag(scan, false) scan.toLower(start, end) } for len(scan.token) == 2 && !isAlpha(scan.token[1]) { |