79 lines
1.6 KiB
JavaScript
79 lines
1.6 KiB
JavaScript
export default function(md) {
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function tokenize(state, silent) {
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let token;
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const start = state.pos;
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const marker = state.src.charCodeAt(start);
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if (silent) {
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return false;
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}
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// :
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if (marker !== 58) {
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return false;
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}
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const scanned = state.scanDelims(state.pos, true);
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const len = scanned.length;
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const ch = String.fromCharCode(marker);
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for (let i = 0; i < len; i += 1) {
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token = state.push('text', '', 0);
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token.content = ch;
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state.delimiters.push({
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marker,
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jump: i,
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token: state.tokens.length - 1,
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level: state.level,
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end: -1,
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open: scanned.can_open,
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close: scanned.can_close
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});
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}
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state.pos += scanned.length;
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return true;
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}
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function postProcess(state) {
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let startDelim;
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let endDelim;
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let token;
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const { delimiters } = state;
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const max = delimiters.length;
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for (const i = 0; i < max; i++) { // eslint-disable-line
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startDelim = delimiters[i];
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// :
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if (startDelim.marker !== 58) {
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continue; // eslint-disable-line
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}
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if (startDelim.end === -1) {
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continue; // eslint-disable-line
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}
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endDelim = delimiters[startDelim.end];
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token = state.tokens[startDelim.token];
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token.type = 'emoji_open';
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token.tag = 'emoji';
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token.nesting = 1;
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token.markup = ':';
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token.content = '';
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token = state.tokens[endDelim.token];
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token.type = 'emoji_close';
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token.tag = 'emoji';
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token.nesting = -1;
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token.markup = ':';
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token.content = '';
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}
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}
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md.inline.ruler.before('emphasis', 'emoji', tokenize);
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md.inline.ruler2.before('emphasis', 'emoji', postProcess);
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}
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