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Handle keycap variants as a group in the regex

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This commit is contained in:
Tom Wuttke 2016-03-01 11:06:06 -08:00
parent 93e0461b16
commit ab59f6bab5
6 changed files with 25 additions and 10 deletions
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4
2/test/test.js
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@ -449,7 +449,7 @@ wru.test([{
);
}
},{
name: 'non standard OSX variant',
name: 'keycap variant',
test: function () {
var div = document.createElement('div');
div.innerHTML = '5\ufe0f\u20e3';
@ -464,7 +464,7 @@ wru.test([{
div.getElementsByTagName('img')[0].alt.length === 3);
}
},{
name: 'same but standard OSX without variant',
name: 'keycap without variant',
test: function () {
var div = document.createElement('div');
div.innerHTML = '5\u20e3';

2
2/twemoji.amd.js
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2
2/twemoji.js
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2
2/twemoji.min.js vendored
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2
2/twemoji.npm.js
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23
2/utils/generate
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@ -244,14 +244,23 @@ Queue([
var zwj = [];
var diversity = [];
var sensitive = [];
var sensitiveKeycaps = [];
var diversitySensitive = [];
var regular = [];
q.emojiSource.forEach(function (codePoints) {
var u;
var codePointsWithoutKeycap;
codePoints = codePoints.replace(/\b[A-F0-9]+\b/g, function (hex) {
// Pad all hex numbers to have at least 4 digits to match variantsSensitive
return hex.length < 4 ? ('000' + hex).slice(-4) : hex;
});
if (q.ignore.indexOf(codePoints) < 0) {
u = codePoints.split('-').map(toJSON).join('');
u = toJSON(codePoints);
codePointsWithoutKeycap = codePoints.replace(/-20E3$/, '');
if (codePoints.indexOf('200D') >= 0) {
zwj.push(u);
} else if (codePoints != codePointsWithoutKeycap && q.variantsSensitive.indexOf(codePointsWithoutKeycap) >= 0) {
sensitiveKeycaps.push(toJSON(codePointsWithoutKeycap));
} else if (q.diversityBase.indexOf(codePoints.replace(/-1F3F[B-F]$/, '')) >= 0) {
// This is a diversity Emoji with or without a skin tone modifier
// Add it to the regex if this is the base without the modifier
@ -277,6 +286,11 @@ Queue([
q.re += zwj.join('|') + '|';
}
// Group the variant sensitive keycaps
if (sensitiveKeycaps.length) {
q.re += '(?:' + sensitiveKeycaps.join('|') + ')\\ufe0f?\\u20e3|';
}
// Next, add the diversity enabled Emoji that may include a skin tone suffix
if (diversity.length + diversitySensitive.length) {
q.re += '(?:';
@ -299,8 +313,10 @@ Queue([
q.next();
// basic utilities to convert codepoints to JSON strings
function toJSON(point) {
return UTF162JSON(fromCodePoint(point));
function toJSON(codePoints) {
return codePoints.split('-').map(function (point) {
return UTF162JSON(fromCodePoint(point));
}).join('');
}
function fromCodePoint(codepoint) {
var code = typeof codepoint === 'string' ?
@ -901,7 +917,6 @@ function createTwemoji(re) {
.replace(/^ /gm, '')
// add the RegExp in the right place
.replace('re = /twemoji/', 're = /' + re + '/g')
.replace(/(\\u00[2-3][0-9])(\\u20e3)/g, '$1\\ufe0f?$2')
// add the full license
.replace('/*! (C) Twitter Inc. */',
'/*! (C) Twitter Inc. *//*\n' +