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59 lines
1.4 KiB
59 lines
1.4 KiB
// Process autolinks '<protocol:...>'
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var escapeHtml = require('../helpers').escapeHtml;
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var url_schemas = require('../common/url_schemas');
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/*eslint max-len:0*/
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var EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;
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var AUTOLINK_RE = /^<([a-zA-Z.\-]{1,25}):([^<>\x00-\x20]*)>/;
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module.exports = function autolink(state) {
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var tail, linkMatch, emailMatch, pos = state.pos;
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if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
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tail = state.src.slice(pos);
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if (tail.indexOf('>') < 0) { return false; }
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linkMatch = tail.match(AUTOLINK_RE);
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if (linkMatch) {
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if (url_schemas.indexOf(linkMatch[1].toLowerCase()) < 0) { return false; }
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state.push({
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type: 'link_open',
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href: linkMatch[0].slice(1, -1)
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});
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state.push({
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type: 'text',
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content: escapeHtml(linkMatch[0].slice(1, -1))
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});
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state.push({ type: 'link_close' });
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state.pos += linkMatch[0].length;
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return true;
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}
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emailMatch = tail.match(EMAIL_RE);
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if (emailMatch) {
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state.tokens.push({
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type: 'link_open',
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href: 'mailto:' + emailMatch[0].slice(1, -1)
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});
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state.tokens.push({
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type: 'text',
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content: escapeHtml(emailMatch[0].slice(1, -1))
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});
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state.tokens.push({ type: 'link_close' });
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state.pos += emailMatch[0].length;
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return true;
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}
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return false;
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};
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