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fix: word-break seperators (#2593)

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Niklas von Hertzen
2021-07-15 21:05:26 +08:00
committed by GitHub
parent 4c360fc1f0
commit e9f7f48d57
2 changed files with 151 additions and 123 deletions
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22
src/css/layout/text.ts
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@@ -70,6 +70,9 @@ const breakText = (value: string, styles: CSSParsedDeclaration): string[] => {
return styles.letterSpacing !== 0 ? toCodePoints(value).map((i) => fromCodePoint(i)) : breakWords(value, styles);
};
// https://drafts.csswg.org/css-text/#word-separator
const wordSeparators = [0x0020, 0x00a0, 0x1361, 0x10100, 0x10101, 0x1039, 0x1091];
const breakWords = (str: string, styles: CSSParsedDeclaration): string[] => {
const breaker = LineBreaker(str, {
lineBreak: styles.lineBreak,
@@ -81,7 +84,24 @@ const breakWords = (str: string, styles: CSSParsedDeclaration): string[] => {
while (!(bk = breaker.next()).done) {
if (bk.value) {
words.push(bk.value.slice());
const value = bk.value.slice();
const codePoints = toCodePoints(value);
let word = '';
codePoints.forEach((codePoint) => {
if (wordSeparators.indexOf(codePoint) === -1) {
word += fromCodePoint(codePoint);
} else {
if (word.length) {
words.push(word);
}
words.push(fromCodePoint(codePoint));
word = '';
}
});
if (word.length) {
words.push(word);
}
}
}