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