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// Parse abbreviation definitions, i.e. `*[abbr]: description`
//
'use strict';
var StateInline = require('../rules_inline/state_inline');
var parseLinkLabel = require('../helpers/parse_link_label');
function parseAbbr(str, parserInline, options, env) {
var state, labelEnd, pos, max, label, title;
if (str.charCodeAt(0) !== 0x2A/* * */) { return -1; }
if (str.charCodeAt(1) !== 0x5B/* [ */) { return -1; }
if (str.indexOf(']:') === -1) { return -1; }
state = new StateInline(str, parserInline, options, env, []);
labelEnd = parseLinkLabel(state, 1);
if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; }
max = state.posMax;
// abbr title is always one line, so looking for ending "\n" here
for (pos = labelEnd + 2; pos < max; pos++) {
if (state.src.charCodeAt(pos) === 0x0A) { break; }
}
label = str.slice(2, labelEnd);
title = str.slice(labelEnd + 2, pos).trim();
if (title.length === 0) { return -1; }
if (!env.abbreviations) { env.abbreviations = {}; }
// prepend ':' to avoid conflict with Object.prototype members
if (typeof env.abbreviations[':' + label] === 'undefined') {
env.abbreviations[':' + label] = title;
}
return pos;
}
module.exports = function abbr(state) {
var tokens = state.tokens, i, l, content, pos;
if (state.inlineMode) {
return;
}
// Parse inlines
for (i = 1, l = tokens.length - 1; i < l; i++) {
if (tokens[i - 1].type === 'paragraph_open' &&
tokens[i].type === 'inline' &&
tokens[i + 1].type === 'paragraph_close') {
content = tokens[i].content;
while (content.length) {
pos = parseAbbr(content, state.inline, state.options, state.env);
if (pos < 0) { break; }
content = content.slice(pos).trim();
}
tokens[i].content = content;
if (!content.length) {
tokens[i - 1].tight = true;
tokens[i + 1].tight = true;
}
}
}
};