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82 lines
2.7 KiB
Go
82 lines
2.7 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ucd_test
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import (
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"fmt"
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"strings"
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"golang.org/x/text/internal/ucd"
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)
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func Example() {
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// Read rune-by-rune from UnicodeData.
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var count int
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p := ucd.New(strings.NewReader(unicodeData))
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for p.Next() {
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count++
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if lower := p.Runes(ucd.SimpleLowercaseMapping); lower != nil {
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fmt.Printf("lower(%U) -> %U\n", p.Rune(0), lower[0])
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}
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}
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if err := p.Err(); err != nil {
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fmt.Println(err)
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}
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fmt.Println("Number of runes visited:", count)
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// Read raw ranges from Scripts.
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p = ucd.New(strings.NewReader(scripts), ucd.KeepRanges)
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for p.Next() {
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start, end := p.Range(0)
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fmt.Printf("%04X..%04X: %s\n", start, end, p.String(1))
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}
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if err := p.Err(); err != nil {
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fmt.Println(err)
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}
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// Output:
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// lower(U+00C0) -> U+00E0
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// lower(U+00C1) -> U+00E1
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// lower(U+00C2) -> U+00E2
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// lower(U+00C3) -> U+00E3
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// lower(U+00C4) -> U+00E4
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// Number of runes visited: 6594
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// 0000..001F: Common
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// 0020..0020: Common
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// 0021..0023: Common
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// 0024..0024: Common
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}
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// Excerpt from UnicodeData.txt
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const unicodeData = `
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00B9;SUPERSCRIPT ONE;No;0;EN;<super> 0031;;1;1;N;SUPERSCRIPT DIGIT ONE;;;;
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00BA;MASCULINE ORDINAL INDICATOR;Lo;0;L;<super> 006F;;;;N;;;;;
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00BB;RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK;Pf;0;ON;;;;;Y;RIGHT POINTING GUILLEMET;;;;
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00BC;VULGAR FRACTION ONE QUARTER;No;0;ON;<fraction> 0031 2044 0034;;;1/4;N;FRACTION ONE QUARTER;;;;
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00BD;VULGAR FRACTION ONE HALF;No;0;ON;<fraction> 0031 2044 0032;;;1/2;N;FRACTION ONE HALF;;;;
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00BE;VULGAR FRACTION THREE QUARTERS;No;0;ON;<fraction> 0033 2044 0034;;;3/4;N;FRACTION THREE QUARTERS;;;;
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00BF;INVERTED QUESTION MARK;Po;0;ON;;;;;N;;;;;
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00C0;LATIN CAPITAL LETTER A WITH GRAVE;Lu;0;L;0041 0300;;;;N;LATIN CAPITAL LETTER A GRAVE;;;00E0;
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00C1;LATIN CAPITAL LETTER A WITH ACUTE;Lu;0;L;0041 0301;;;;N;LATIN CAPITAL LETTER A ACUTE;;;00E1;
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00C2;LATIN CAPITAL LETTER A WITH CIRCUMFLEX;Lu;0;L;0041 0302;;;;N;LATIN CAPITAL LETTER A CIRCUMFLEX;;;00E2;
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00C3;LATIN CAPITAL LETTER A WITH TILDE;Lu;0;L;0041 0303;;;;N;LATIN CAPITAL LETTER A TILDE;;;00E3;
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00C4;LATIN CAPITAL LETTER A WITH DIAERESIS;Lu;0;L;0041 0308;;;;N;LATIN CAPITAL LETTER A DIAERESIS;;;00E4;
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# A legacy rune range.
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3400;<CJK Ideograph Extension A, First>;Lo;0;L;;;;;N;;;;;
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4DB5;<CJK Ideograph Extension A, Last>;Lo;0;L;;;;;N;;;;;
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`
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// Excerpt from Scripts.txt
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const scripts = `
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# Property: Script
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# ================================================
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0000..001F ; Common # Cc [32] <control-0000>..<control-001F>
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0020 ; Common # Zs SPACE
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0021..0023 ; Common # Po [3] EXCLAMATION MARK..NUMBER SIGN
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0024 ; Common # Sc DOLLAR SIGN
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`
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