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79 lines
1.6 KiB
79 lines
1.6 KiB
10 years ago
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// fences (``` lang, ~~~ lang)
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'use strict';
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var skipEmptyLines = require('../helpers').skipEmptyLines;
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module.exports =function fences(state, startLine, endLine, silent) {
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var marker, len, params, nextLine,
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pos = state.bMarks[startLine] + state.tShift[startLine],
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max = state.eMarks[startLine];
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if (pos + 3 > max) { return false; }
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marker = state.src.charCodeAt(pos);
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if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) {
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return false;
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}
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// scan marker length
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len = 1;
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while (state.src.charCodeAt(++pos) === marker) {
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len++;
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}
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if (len < 3) { return false; }
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params = state.src.slice(pos, max).trim();
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if (!/\S/.test(params)) { return false; }
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// search end of block
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nextLine = startLine;
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do {
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nextLine++;
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if (nextLine > endLine) { return false; }
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pos = state.bMarks[nextLine] + state.tShift[nextLine];
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max = state.eMarks[nextLine];
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if (pos + 3 > max) { continue; }
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// check markers
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if (state.src.charCodeAt(pos) !== marker &&
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state.src.charCodeAt(pos + 1) !== marker &&
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state.src.charCodeAt(pos + 2) !== marker) {
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continue;
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}
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pos += 3;
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// make sure tail has spaces only
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//pos = pos < max ? skipSpaces(state, pos) : pos;
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// stmd allow any combonation of markers and spaces in tail
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if (pos < max) { continue; }
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// found!
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break;
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} while (true);
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if (silent) { return true; }
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state.tokens.push({
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type: 'fence',
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params: params.split(/\s+/g),
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startLine: startLine + 1,
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endLine: nextLine
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});
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state.line = skipEmptyLines(state, nextLine + 1);
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return true;
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};
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