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67 lines
2.0 KiB
67 lines
2.0 KiB
// Process footnote reference list
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'use strict';
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module.exports = function footnote(state, startLine, endLine, silent) {
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var oldBMark, oldTShift, oldParentType, pos, label,
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start = state.bMarks[startLine] + state.tShift[startLine],
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max = state.eMarks[startLine];
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// line should be at least 5 chars - "[^x]:"
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if (start + 4 > max) { return false; }
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if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
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if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
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if (state.level >= state.options.maxNesting) { return false; }
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for (pos = start + 2; pos < max; pos++) {
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if (state.src.charCodeAt(pos) === 0x20) { return false; }
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if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
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break;
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}
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}
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if (pos === start + 2) { return false; } // no empty footnote labels
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if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; }
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if (silent) { return true; }
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pos++;
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if (!state.env.footnotes) { state.env.footnotes = {}; }
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if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; }
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label = state.src.slice(start + 2, pos - 2);
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state.env.footnotes.refs[':' + label] = -1;
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state.tokens.push({
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type: 'footnote_reference_open',
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label: label,
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level: state.level++
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});
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oldBMark = state.bMarks[startLine];
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oldTShift = state.tShift[startLine];
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oldParentType = state.parentType;
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state.tShift[startLine] = state.skipSpaces(pos) - pos;
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state.bMarks[startLine] = pos;
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state.blkIndent += 4;
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state.parentType = 'footnote';
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if (state.tShift[startLine] < state.blkIndent) {
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state.tShift[startLine] += state.blkIndent;
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state.bMarks[startLine] -= state.blkIndent;
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}
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state.parser.tokenize(state, startLine, endLine, true);
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state.parentType = oldParentType;
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state.blkIndent -= 4;
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state.tShift[startLine] = oldTShift;
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state.bMarks[startLine] = oldBMark;
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state.tokens.push({
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type: 'footnote_reference_close',
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level: --state.level
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});
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return true;
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};
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