/usr/share/gocode/src/golang.org/x/text/language/data_test.go is in golang-golang-x-text-dev 0.0~git20170627.0.6353ef0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package language
type matchTest struct {
comment string
supported string
test []struct{ match, desired string }
}
var matchTests = []matchTest{
{
"basics",
"fr, en-GB, en",
[]struct{ match, desired string }{
{"en-GB", "en-GB"},
{"en", "en-US"},
{"fr", "fr-FR"},
{"fr", "ja-JP"},
},
},
{
"script fallbacks",
"zh-CN, zh-TW, iw",
[]struct{ match, desired string }{
{"zh-TW", "zh-Hant"},
{"zh-CN", "zh"},
{"zh-CN", "zh-Hans-CN"},
{"zh-TW", "zh-Hant-HK"},
{"iw", "he-IT"},
},
},
{
"language-specific script fallbacks 1",
"en, sr, nl",
[]struct{ match, desired string }{
{"sr", "sr-Latn"},
{"en", "sh"},
{"en", "hr"},
{"en", "bs"},
{"en", "nl-Cyrl"},
},
},
{
"language-specific script fallbacks 2",
"en, sh",
[]struct{ match, desired string }{
{"sh", "sr"},
{"sh", "sr-Cyrl"},
{"sh", "hr"},
},
},
{
"both deprecated and not",
"fil, tl, iw, he",
[]struct{ match, desired string }{
{"he", "he-IT"},
{"he", "he"},
{"iw", "iw"},
{"fil", "fil-IT"},
{"fil", "fil"},
{"tl", "tl"},
},
},
{
"nearby languages",
"en, fil, ro, nn",
[]struct{ match, desired string }{
{"fil", "tl"},
{"ro", "mo"},
{"nn", "nb"},
{"en", "ja"}, // make sure default works
},
},
{
"nearby languages: Nynorsk to Bokmål",
"en, nb",
[]struct{ match, desired string }{
{"nb", "nn"},
},
},
{
"nearby languages: Danish does not match nn",
"en, nn",
[]struct{ match, desired string }{
{"en", "da"},
},
},
{
"nearby languages: Danish matches no",
"en, no",
[]struct{ match, desired string }{
{"no", "da"},
},
},
{
"nearby languages: Danish matches nb",
"en, nb",
[]struct{ match, desired string }{
{"nb", "da"},
},
},
{
"prefer matching languages over language variants.",
"nn, en-GB",
[]struct{ match, desired string }{
{"en-GB", "no, en-US"},
{"en-GB", "nb, en-US"},
},
},
{
"deprecated version is closer than same language with other differences",
"nl, he, en-GB",
[]struct{ match, desired string }{
{"he", "iw, en-US"},
},
},
{
"macro equivalent is closer than same language with other differences",
"nl, zh, en-GB, no",
[]struct{ match, desired string }{
{"zh", "cmn, en-US"},
{"no", "nb, en-US"},
},
},
{
"legacy equivalent is closer than same language with other differences",
"nl, fil, en-GB",
[]struct{ match, desired string }{
{"fil", "tl, en-US"},
},
},
{
"exact over equivalent",
"en, ro, mo, ro-MD",
[]struct{ match, desired string }{
{"ro", "ro"},
{"mo", "mo"},
{"ro-MD", "ro-MD"},
},
},
{
"maximization of legacy",
"sr-Cyrl, sr-Latn, ro, ro-MD",
[]struct{ match, desired string }{
{"sr-Latn", "sh"},
{"ro-MD", "mo"},
},
},
{
"empty",
"",
[]struct{ match, desired string }{
{"und", "fr"},
{"und", "en"},
},
},
{
"private use subtags",
"fr, en-GB, x-bork, es-ES, es-419",
[]struct{ match, desired string }{
{"fr", "x-piglatin"},
{"x-bork", "x-bork"},
},
},
{
"grandfathered codes",
"fr, i-klingon, en-Latn-US",
[]struct{ match, desired string }{
{"en-Latn-US", "en-GB-oed"},
{"tlh", "i-klingon"},
},
},
{
"exact match",
"fr, en-GB, ja, es-ES, es-MX",
[]struct{ match, desired string }{
{"ja", "ja, de"},
},
},
{
"simple variant match",
"fr, en-GB, ja, es-ES, es-MX",
[]struct{ match, desired string }{
// Intentionally avoiding a perfect-match or two candidates for variant matches.
{"en-GB", "de, en-US"},
// Fall back.
{"fr", "de, zh"},
},
},
{
"best match for traditional Chinese",
// Scenario: An application that only supports Simplified Chinese (and some
// other languages), but does not support Traditional Chinese. zh-Hans-CN
// could be replaced with zh-CN, zh, or zh-Hans, it wouldn't make much of
// a difference.
"fr, zh-Hans-CN, en-US",
[]struct{ match, desired string }{
{"zh-Hans-CN", "zh-TW"},
{"zh-Hans-CN", "zh-Hant"},
// One can avoid a zh-Hant to zh-Hans match by including a second language
// preference which is a better match.
{"en-US", "zh-TW, en"},
{"en-US", "zh-Hant-CN, en"},
{"zh-Hans-CN", "zh-Hans, en"},
},
},
// More specific region and script tie-breakers.
{
"more specific script should win in case regions are identical",
"af, af-Latn, af-Arab",
[]struct{ match, desired string }{
{"af", "af"},
{"af", "af-ZA"},
{"af-Latn", "af-Latn-ZA"},
{"af-Latn", "af-Latn"},
},
},
{
"more specific region should win",
"nl, nl-NL, nl-BE",
[]struct{ match, desired string }{
{"nl", "nl"},
{"nl", "nl-Latn"},
{"nl-NL", "nl-Latn-NL"},
{"nl-NL", "nl-NL"},
},
},
{
"more specific region wins over more specific script",
"nl, nl-Latn, nl-NL, nl-BE",
[]struct{ match, desired string }{
{"nl", "nl"},
{"nl-Latn", "nl-Latn"},
{"nl-NL", "nl-NL"},
{"nl-NL", "nl-Latn-NL"},
},
},
// Region distance tie-breakers.
{
"region distance Portuguese",
"pt, pt-PT",
[]struct{ match, desired string }{
{"pt-PT", "pt-ES"},
},
},
{
"region distance French",
"en, fr, fr-CA, fr-CH",
[]struct{ match, desired string }{
{"fr-CA", "fr-US"},
},
},
{
"region distance German",
"de-AT, de-DE, de-CH",
[]struct{ match, desired string }{
{"de-DE", "de"},
},
},
{
"en-AU is closer to en-GB than to en (which is en-US)",
"en, en-GB, es-ES, es-419",
[]struct{ match, desired string }{
{"en-GB", "en-AU"},
{"es-419", "es-MX"},
{"es-ES", "es-PT"},
},
},
// Test exceptions with "und".
// When the undefined language doesn't match anything in the list, return the default, as usual.
// max("und") = "en-Latn-US", and since matching is based on maximized tags, the undefined
// language would normally match English. But that would produce the counterintuitive results.
// Matching "und" to "it,en" would be "en" matching "en" to "it,und" would be "und".
// To avoid this max("und") is defined as "und"
{
"undefined",
"it, fr",
[]struct{ match, desired string }{
{"it", "und"},
},
},
{
"und does not match en",
"it, en",
[]struct{ match, desired string }{
{"it", "und"},
},
},
{
"undefined in priority list",
"it, und",
[]struct{ match, desired string }{
{"und", "und"},
{"it", "en"},
},
},
// Undefined scripts and regions.
{
"undefined",
"it, fr, zh",
[]struct{ match, desired string }{
{"fr", "und-FR"},
{"zh", "und-CN"},
{"zh", "und-Hans"},
{"zh", "und-Hant"},
{"it", "und-Latn"},
},
},
// Early termination conditions: do not consider all desired strings if
// a match is good enough.
{
"match on maximized tag",
"fr, en-GB, ja, es-ES, es-MX",
[]struct{ match, desired string }{
// ja-JP matches ja on likely subtags, and it's listed first,
// thus it wins over the second preference en-GB.
{"ja", "ja-JP, en-GB"},
{"ja", "ja-Jpan-JP, en-GB"},
},
},
{
"pick best maximized tag",
"ja, ja-Jpan-US, ja-JP, en, ru",
[]struct{ match, desired string }{
{"ja", "ja-Jpan, ru"},
{"ja-JP", "ja-JP, ru"},
{"ja-Jpan-US", "ja-US, ru"},
},
},
{
"termination: pick best maximized match",
"ja, ja-Jpan, ja-JP, en, ru",
[]struct{ match, desired string }{
{"ja-JP", "ja-Jpan-JP, ru"},
{"ja-Jpan", "ja-Jpan, ru"},
},
},
{
"no match on maximized",
"en, de, fr, ja",
[]struct{ match, desired string }{
// de maximizes to de-DE.
// Pick the exact match for the secondary language instead.
{"fr", "de-CH, fr"},
},
},
// Test that the CLDR parent relations are correctly preserved by the matcher.
// These matches may change for different CLDR versions.
{
"parent relation preserved",
"en, en-US, en-GB, es, es-419, pt, pt-BR, pt-PT, zh, zh-Hant, zh-Hant-HK",
[]struct{ match, desired string }{
{"en-GB", "en-150"},
{"en-GB", "en-AU"},
{"en-GB", "en-BE"},
{"en-GB", "en-GG"},
{"en-GB", "en-GI"},
{"en-GB", "en-HK"},
{"en-GB", "en-IE"},
{"en-GB", "en-IM"},
{"en-GB", "en-IN"},
{"en-GB", "en-JE"},
{"en-GB", "en-MT"},
{"en-GB", "en-NZ"},
{"en-GB", "en-PK"},
{"en-GB", "en-SG"},
{"en-GB", "en-DE"},
{"en-GB", "en-MT"},
{"es-419", "es-AR"},
{"es-419", "es-BO"},
{"es-419", "es-CL"},
{"es-419", "es-CO"},
{"es-419", "es-CR"},
{"es-419", "es-CU"},
{"es-419", "es-DO"},
{"es-419", "es-EC"},
{"es-419", "es-GT"},
{"es-419", "es-HN"},
{"es-419", "es-MX"},
{"es-419", "es-NI"},
{"es-419", "es-PA"},
{"es-419", "es-PE"},
{"es-419", "es-PR"},
{"es-419", "es-PY"},
{"es-419", "es-SV"},
{"es-419", "es-US"},
{"es-419", "es-UY"},
{"es-419", "es-VE"},
{"pt-PT", "pt-AO"},
{"pt-PT", "pt-CV"},
{"pt-PT", "pt-GW"},
{"pt-PT", "pt-MO"},
{"pt-PT", "pt-MZ"},
{"pt-PT", "pt-ST"},
{"pt-PT", "pt-TL"},
// TODO for CLDR 24+
// - en-001
// - {"zh-Hant-HK", "zh-Hant-MO"},
},
},
// Options and variants are inherited from user-defined settings.
{
"preserve Unicode extension",
"en, de, sl-nedis",
[]struct{ match, desired string }{
{"de-u-co-phonebk", "de-FR-u-co-phonebk"},
{"sl-nedis-u-cu-eur", "sl-nedis-u-cu-eur"},
{"sl-nedis-u-cu-eur", "sl-u-cu-eur"},
{"sl-nedis-u-cu-eur", "sl-HR-nedis-u-cu-eur"},
},
},
}
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