balance_pairs.js
1.13 KB
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// For each opening emphasis-like marker find a matching closing one
//
'use strict';
module.exports = function link_pairs(state) {
var i, j, lastDelim, currDelim,
delimiters = state.delimiters,
max = state.delimiters.length;
for (i = 0; i < max; i++) {
lastDelim = delimiters[i];
if (!lastDelim.close) { continue; }
j = i - lastDelim.jump - 1;
while (j >= 0) {
currDelim = delimiters[j];
if (currDelim.open &&
currDelim.marker === lastDelim.marker &&
currDelim.end < 0 &&
currDelim.level === lastDelim.level) {
// typeofs are for backward compatibility with plugins
var odd_match = (currDelim.close || lastDelim.open) &&
typeof currDelim.length !== 'undefined' &&
typeof lastDelim.length !== 'undefined' &&
(currDelim.length + lastDelim.length) % 3 === 0;
if (!odd_match) {
lastDelim.jump = i - j;
lastDelim.open = false;
currDelim.end = i;
currDelim.jump = 0;
break;
}
}
j -= currDelim.jump + 1;
}
}
};