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30 lines
1.1 KiB
30 lines
1.1 KiB
'use strict';
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const parenPairRegex = /\((?:[^)(]+|\((?:[^)(]+|\([^)(]\))*\))*\)/g
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module.exports = (match, label, url, urlOnly) => {
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let trimmedMatch;
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let excess = '';
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if (urlOnly) {
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const parensPairs = match.match(parenPairRegex);
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//naive solution to conflict with detected markdown
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if (parensPairs) {
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const lastMatch = parensPairs[parensPairs.length-1];
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const lastIndex = match.lastIndexOf(lastMatch);
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trimmedMatch = match.substring(0, lastIndex+lastMatch.length);
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excess = match.substring(lastIndex+lastMatch.length);
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} else if (match.indexOf(')') !== -1){
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trimmedMatch = match.substring(0, match.indexOf(')'));
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excess = match.substring(match.indexOf(')'));
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} else {
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trimmedMatch = match;
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}
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trimmedMatch = trimmedMatch
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.replace(/\(/g, '%28')
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.replace(/\)/g, '%29');
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}
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let href = url || trimmedMatch
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const aLabel = label || trimmedMatch;
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//TODO: if the link domain is one of the site domains, remove the domain and make it an absolute link, for users on different domains or anonymizers
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return `<a rel='nofollow' referrerpolicy='same-origin' target='_blank' href='${href}'>${aLabel}</a>${excess}`;
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};
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