56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
// heading (#, ##, ...)
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'use strict';
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var isSpace = require('../common/utils').isSpace;
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module.exports = function heading(state, startLine, endLine, silent) {
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var ch, level, tmp, token,
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pos = state.bMarks[startLine] + state.tShift[startLine],
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max = state.eMarks[startLine];
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// if it's indented more than 3 spaces, it should be a code block
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if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
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ch = state.src.charCodeAt(pos);
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if (ch !== 0x23/* # */ || pos >= max) { return false; }
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// count heading level
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level = 1;
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ch = state.src.charCodeAt(++pos);
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while (ch === 0x23/* # */ && pos < max && level <= 6) {
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level++;
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ch = state.src.charCodeAt(++pos);
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}
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if (level > 6 || (pos < max && !isSpace(ch))) { return false; }
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if (silent) { return true; }
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// Let's cut tails like ' ### ' from the end of string
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max = state.skipSpacesBack(max, pos);
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tmp = state.skipCharsBack(max, 0x23, pos); // #
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if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
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max = tmp;
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}
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state.line = startLine + 1;
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token = state.push('heading_open', 'h' + String(level), 1);
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token.markup = '########'.slice(0, level);
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token.map = [ startLine, state.line ];
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token = state.push('inline', '', 0);
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token.content = state.src.slice(pos, max).trim();
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token.map = [ startLine, state.line ];
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token.children = [];
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token = state.push('heading_close', 'h' + String(level), -1);
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token.markup = '########'.slice(0, level);
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return true;
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};
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