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// Parse link label
//
// this function assumes that first character ("[") already matches;
// returns the end of the label
//
'use strict';
module.exports = function parseLinkLabel(state, start, disableNested) {
var level, found, marker, prevPos,
labelEnd = -1,
max = state.posMax,
oldPos = state.pos;
state.pos = start + 1;
level = 1;
while (state.pos < max) {
marker = state.src.charCodeAt(state.pos);
if (marker === 0x5D /* ] */) {
level--;
if (level === 0) {
found = true;
break;
}
}
prevPos = state.pos;
state.md.inline.skipToken(state);
if (marker === 0x5B /* [ */) {
if (prevPos === state.pos - 1) {
// increase level if we find text `[`, which is not a part of any token
level++;
} else if (disableNested) {
state.pos = oldPos;
return -1;
}
}
}
if (found) {
labelEnd = state.pos;
}
// restore old state
state.pos = oldPos;
return labelEnd;
};
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