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fix: remove string.repeat for ie11 (#1772)

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Tony Brix 2020-10-21 09:56:32 -05:00 committed by GitHub
parent 7183d4fee9
commit 27070705d3
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 3 deletions
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5
src/Lexer.js
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@ -1,6 +1,7 @@
const Tokenizer = require('./Tokenizer.js');
const { defaults } = require('./defaults.js');
const { block, inline } = require('./rules.js');
const { repeatString } = require('./helpers.js');
/**
* smartypants text replacement
@ -340,14 +341,14 @@ module.exports = class Lexer {
if (links.length > 0) {
while ((match = this.tokenizer.rules.inline.reflinkSearch.exec(maskedSrc)) != null) {
if (links.includes(match[0].slice(match[0].lastIndexOf('[') + 1, -1))) {
maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex);
maskedSrc = maskedSrc.slice(0, match.index) + '[' + repeatString('a', match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex);
}
}
}
}
// Mask out other blocks
while ((match = this.tokenizer.rules.inline.blockSkip.exec(maskedSrc)) != null) {
maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);
maskedSrc = maskedSrc.slice(0, match.index) + '[' + repeatString('a', match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);
}
while (src) {

19
src/helpers.js
View File

@ -228,6 +228,22 @@ function checkSanitizeDeprecation(opt) {
}
}
// copied from https://stackoverflow.com/a/5450113/806777
function repeatString(pattern, count) {
if (count < 1) {
return '';
}
let result = '';
while (count > 1) {
if (count & 1) {
result += pattern;
}
count >>= 1;
pattern += pattern;
}
return result + pattern;
}
module.exports = {
escape,
unescape,
@ -239,5 +255,6 @@ module.exports = {
splitCells,
rtrim,
findClosingBracket,
checkSanitizeDeprecation
checkSanitizeDeprecation,
repeatString
};