/usr/share/gocode/src/golang.org/x/text/language/examples_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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 | // Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package language_test
import (
"fmt"
"golang.org/x/text/language"
)
func ExampleCanonType() {
p := func(id string) {
fmt.Printf("Default(%s) -> %s\n", id, language.Make(id))
fmt.Printf("BCP47(%s) -> %s\n", id, language.BCP47.Make(id))
fmt.Printf("Macro(%s) -> %s\n", id, language.Macro.Make(id))
fmt.Printf("All(%s) -> %s\n", id, language.All.Make(id))
}
p("en-Latn")
p("sh")
p("zh-cmn")
p("bjd")
p("iw-Latn-fonipa-u-cu-usd")
// Output:
// Default(en-Latn) -> en-Latn
// BCP47(en-Latn) -> en
// Macro(en-Latn) -> en-Latn
// All(en-Latn) -> en
// Default(sh) -> sr-Latn
// BCP47(sh) -> sh
// Macro(sh) -> sh
// All(sh) -> sr-Latn
// Default(zh-cmn) -> cmn
// BCP47(zh-cmn) -> cmn
// Macro(zh-cmn) -> zh
// All(zh-cmn) -> zh
// Default(bjd) -> drl
// BCP47(bjd) -> drl
// Macro(bjd) -> bjd
// All(bjd) -> drl
// Default(iw-Latn-fonipa-u-cu-usd) -> he-Latn-fonipa-u-cu-usd
// BCP47(iw-Latn-fonipa-u-cu-usd) -> he-Latn-fonipa-u-cu-usd
// Macro(iw-Latn-fonipa-u-cu-usd) -> iw-Latn-fonipa-u-cu-usd
// All(iw-Latn-fonipa-u-cu-usd) -> he-Latn-fonipa-u-cu-usd
}
func ExampleTag_Base() {
fmt.Println(language.Make("und").Base())
fmt.Println(language.Make("und-US").Base())
fmt.Println(language.Make("und-NL").Base())
fmt.Println(language.Make("und-419").Base()) // Latin America
fmt.Println(language.Make("und-ZZ").Base())
// Output:
// en Low
// en High
// nl High
// es Low
// en Low
}
func ExampleTag_Script() {
en := language.Make("en")
sr := language.Make("sr")
sr_Latn := language.Make("sr_Latn")
fmt.Println(en.Script())
fmt.Println(sr.Script())
// Was a script explicitly specified?
_, c := sr.Script()
fmt.Println(c == language.Exact)
_, c = sr_Latn.Script()
fmt.Println(c == language.Exact)
// Output:
// Latn High
// Cyrl Low
// false
// true
}
func ExampleTag_Region() {
ru := language.Make("ru")
en := language.Make("en")
fmt.Println(ru.Region())
fmt.Println(en.Region())
// Output:
// RU Low
// US Low
}
func ExampleRegion_TLD() {
us := language.MustParseRegion("US")
gb := language.MustParseRegion("GB")
uk := language.MustParseRegion("UK")
bu := language.MustParseRegion("BU")
fmt.Println(us.TLD())
fmt.Println(gb.TLD())
fmt.Println(uk.TLD())
fmt.Println(bu.TLD())
fmt.Println(us.Canonicalize().TLD())
fmt.Println(gb.Canonicalize().TLD())
fmt.Println(uk.Canonicalize().TLD())
fmt.Println(bu.Canonicalize().TLD())
// Output:
// US <nil>
// UK <nil>
// UK <nil>
// ZZ language: region is not a valid ccTLD
// US <nil>
// UK <nil>
// UK <nil>
// MM <nil>
}
func ExampleCompose() {
nl, _ := language.ParseBase("nl")
us, _ := language.ParseRegion("US")
de := language.Make("de-1901-u-co-phonebk")
jp := language.Make("ja-JP")
fi := language.Make("fi-x-ing")
u, _ := language.ParseExtension("u-nu-arabic")
x, _ := language.ParseExtension("x-piglatin")
// Combine a base language and region.
fmt.Println(language.Compose(nl, us))
// Combine a base language and extension.
fmt.Println(language.Compose(nl, x))
// Replace the region.
fmt.Println(language.Compose(jp, us))
// Combine several tags.
fmt.Println(language.Compose(us, nl, u))
// Replace the base language of a tag.
fmt.Println(language.Compose(de, nl))
fmt.Println(language.Compose(de, nl, u))
// Remove the base language.
fmt.Println(language.Compose(de, language.Base{}))
// Remove all variants.
fmt.Println(language.Compose(de, []language.Variant{}))
// Remove all extensions.
fmt.Println(language.Compose(de, []language.Extension{}))
fmt.Println(language.Compose(fi, []language.Extension{}))
// Remove all variants and extensions.
fmt.Println(language.Compose(de.Raw()))
// An error is gobbled or returned if non-nil.
fmt.Println(language.Compose(language.ParseRegion("ZA")))
fmt.Println(language.Compose(language.ParseRegion("HH")))
// Compose uses the same Default canonicalization as Make.
fmt.Println(language.Compose(language.Raw.Parse("en-Latn-UK")))
// Call compose on a different CanonType for different results.
fmt.Println(language.All.Compose(language.Raw.Parse("en-Latn-UK")))
// Output:
// nl-US <nil>
// nl-x-piglatin <nil>
// ja-US <nil>
// nl-US-u-nu-arabic <nil>
// nl-1901-u-co-phonebk <nil>
// nl-1901-u-nu-arabic <nil>
// und-1901-u-co-phonebk <nil>
// de-u-co-phonebk <nil>
// de-1901 <nil>
// fi <nil>
// de <nil>
// und-ZA <nil>
// und language: subtag "HH" is well-formed but unknown
// en-Latn-GB <nil>
// en-GB <nil>
}
func ExampleParse_errors() {
for _, s := range []string{"Foo", "Bar", "Foobar"} {
_, err := language.Parse(s)
if err != nil {
if inv, ok := err.(language.ValueError); ok {
fmt.Println(inv.Subtag())
} else {
fmt.Println(s)
}
}
}
for _, s := range []string{"en", "aa-Uuuu", "AC", "ac-u"} {
_, err := language.Parse(s)
switch e := err.(type) {
case language.ValueError:
fmt.Printf("%s: culprit %q\n", s, e.Subtag())
case nil:
// No error.
default:
// A syntax error.
fmt.Printf("%s: ill-formed\n", s)
}
}
// Output:
// foo
// Foobar
// aa-Uuuu: culprit "Uuuu"
// AC: culprit "ac"
// ac-u: ill-formed
}
func ExampleParent() {
p := func(tag string) {
fmt.Printf("parent(%v): %v\n", tag, language.Make(tag).Parent())
}
p("zh-CN")
// Australian English inherits from World English.
p("en-AU")
// If the tag has a different maximized script from its parent, a tag with
// this maximized script is inserted. This allows different language tags
// which have the same base language and script in common to inherit from
// a common set of settings.
p("zh-HK")
// If the maximized script of the parent is not identical, CLDR will skip
// inheriting from it, as it means there will not be many entries in common
// and inheriting from it is nonsensical.
p("zh-Hant")
// The parent of a tag with variants and extensions is the tag with all
// variants and extensions removed.
p("de-1994-u-co-phonebk")
// Remove default script.
p("de-Latn-LU")
// Output:
// parent(zh-CN): zh
// parent(en-AU): en-001
// parent(zh-HK): zh-Hant
// parent(zh-Hant): und
// parent(de-1994-u-co-phonebk): de
// parent(de-Latn-LU): de
}
// ExampleMatcher_bestMatch gives some examples of getting the best match of
// a set of tags to any of the tags of given set.
func ExampleMatcher() {
// This is the set of tags from which we want to pick the best match. These
// can be, for example, the supported languages for some package.
tags := []language.Tag{
language.English,
language.BritishEnglish,
language.French,
language.Afrikaans,
language.BrazilianPortuguese,
language.EuropeanPortuguese,
language.Croatian,
language.SimplifiedChinese,
language.Raw.Make("iw-IL"),
language.Raw.Make("iw"),
language.Raw.Make("he"),
}
m := language.NewMatcher(tags)
// A simple match.
fmt.Println(m.Match(language.Make("fr")))
// Australian English is closer to British than American English.
fmt.Println(m.Match(language.Make("en-AU")))
// Default to the first tag passed to the Matcher if there is no match.
fmt.Println(m.Match(language.Make("ar")))
// Get the default tag.
fmt.Println(m.Match())
fmt.Println("----")
// Croatian speakers will likely understand Serbian written in Latin script.
fmt.Println(m.Match(language.Make("sr-Latn")))
// We match SimplifiedChinese, but with Low confidence.
fmt.Println(m.Match(language.TraditionalChinese))
// Serbian in Latin script is a closer match to Croatian than Traditional
// Chinese to Simplified Chinese.
fmt.Println(m.Match(language.TraditionalChinese, language.Make("sr-Latn")))
fmt.Println("----")
// In case a multiple variants of a language are available, the most spoken
// variant is typically returned.
fmt.Println(m.Match(language.Portuguese))
// Pick the first value passed to Match in case of a tie.
fmt.Println(m.Match(language.Dutch, language.Make("fr-BE"), language.Make("af-NA")))
fmt.Println(m.Match(language.Dutch, language.Make("af-NA"), language.Make("fr-BE")))
fmt.Println("----")
// If a Matcher is initialized with a language and it's deprecated version,
// it will distinguish between them.
fmt.Println(m.Match(language.Raw.Make("iw")))
// However, for non-exact matches, it will treat deprecated versions as
// equivalent and consider other factors first.
fmt.Println(m.Match(language.Raw.Make("he-IL")))
fmt.Println("----")
// User settings passed to the Unicode extension are ignored for matching
// and preserved in the returned tag.
fmt.Println(m.Match(language.Make("de-u-co-phonebk"), language.Make("fr-u-cu-frf")))
// Even if the matching language is different.
fmt.Println(m.Match(language.Make("de-u-co-phonebk"), language.Make("br-u-cu-frf")))
// If there is no matching language, the options of the first preferred tag are used.
fmt.Println(m.Match(language.Make("de-u-co-phonebk")))
// Output:
// fr 2 Exact
// en-GB 1 High
// en 0 No
// en 0 No
// ----
// hr 6 High
// zh-Hans 7 Low
// hr 6 High
// ----
// pt-BR 4 High
// fr 2 High
// af 3 High
// ----
// iw 9 Exact
// iw-IL 8 Exact
// ----
// fr-u-cu-frf 2 Exact
// fr-u-cu-frf 2 High
// en-u-co-phonebk 0 No
}
func ExampleComprehends() {
// Various levels of comprehensibility.
fmt.Println(language.Comprehends(language.English, language.English))
fmt.Println(language.Comprehends(language.AmericanEnglish, language.BritishEnglish))
// An explicit Und results in no match.
fmt.Println(language.Comprehends(language.English, language.Und))
fmt.Println("----")
// There is usually no mutual comprehensibility between different scripts.
fmt.Println(language.Comprehends(language.Make("en-Dsrt"), language.English))
// One exception is for Traditional versus Simplified Chinese, albeit with
// a low confidence.
fmt.Println(language.Comprehends(language.TraditionalChinese, language.SimplifiedChinese))
fmt.Println("----")
// A Swiss German speaker will often understand High German.
fmt.Println(language.Comprehends(language.Make("gsw"), language.Make("de")))
// The converse is not generally the case.
fmt.Println(language.Comprehends(language.Make("de"), language.Make("gsw")))
// Output:
// Exact
// High
// No
// ----
// No
// Low
// ----
// High
// No
}
func ExampleTag_values() {
us := language.MustParseRegion("US")
en := language.MustParseBase("en")
lang, _, region := language.AmericanEnglish.Raw()
fmt.Println(lang == en, region == us)
lang, _, region = language.BritishEnglish.Raw()
fmt.Println(lang == en, region == us)
// Tags can be compared for exact equivalence using '=='.
en_us, _ := language.Compose(en, us)
fmt.Println(en_us == language.AmericanEnglish)
// Output:
// true true
// true false
// true
}
|