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73 lines
2.0 KiB
73 lines
2.0 KiB
// Process autolinks '<protocol:...>'
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/* eslint max-len:0 */
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const 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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/* eslint-disable-next-line no-control-regex */
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const AUTOLINK_RE = /^([a-zA-Z][a-zA-Z0-9+.-]{1,31}):([^<>\x00-\x20]*)$/
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export default function autolink (state, silent) {
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let pos = state.pos
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if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false }
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const start = state.pos
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const max = state.posMax
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for (;;) {
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if (++pos >= max) return false
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const ch = state.src.charCodeAt(pos)
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if (ch === 0x3C /* < */) return false
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if (ch === 0x3E /* > */) break
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}
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const url = state.src.slice(start + 1, pos)
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if (AUTOLINK_RE.test(url)) {
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const fullUrl = state.md.normalizeLink(url)
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if (!state.md.validateLink(fullUrl)) { return false }
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if (!silent) {
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const token_o = state.push('link_open', 'a', 1)
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token_o.attrs = [['href', fullUrl]]
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token_o.markup = 'autolink'
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token_o.info = 'auto'
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const token_t = state.push('text', '', 0)
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token_t.content = state.md.normalizeLinkText(url)
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const token_c = state.push('link_close', 'a', -1)
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token_c.markup = 'autolink'
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token_c.info = 'auto'
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}
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state.pos += url.length + 2
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return true
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}
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if (EMAIL_RE.test(url)) {
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const fullUrl = state.md.normalizeLink('mailto:' + url)
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if (!state.md.validateLink(fullUrl)) { return false }
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if (!silent) {
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const token_o = state.push('link_open', 'a', 1)
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token_o.attrs = [['href', fullUrl]]
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token_o.markup = 'autolink'
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token_o.info = 'auto'
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const token_t = state.push('text', '', 0)
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token_t.content = state.md.normalizeLinkText(url)
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const token_c = state.push('link_close', 'a', -1)
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token_c.markup = 'autolink'
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token_c.info = 'auto'
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}
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state.pos += url.length + 2
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return true
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}
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return false
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}
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