@diplodoc/transform
Version:
A simple transformer of text in YFM (Yandex Flavored Markdown) to HTML
110 lines • 4.66 kB
JavaScript
;
const utils_1 = require("../utils");
const termDefinitions_1 = require("./termDefinitions");
const constants_1 = require("./constants");
const term = (md, options) => {
const escapeRE = md.utils.escapeRE;
const arrayReplaceAt = md.utils.arrayReplaceAt;
const { isLintRun } = options;
// Don't parse urls that starts with *
const defaultLinkValidation = md.validateLink;
md.validateLink = function (url) {
if (url.startsWith('*')) {
return false;
}
return defaultLinkValidation(url);
};
function termReplace(state) {
let i, j, l, tokens, token, text, nodes, pos, term, currentToken;
const blockTokens = state.tokens;
if (!state.env.terms) {
return;
}
const regTerms = Object.keys(state.env.terms)
.map((el) => el.substr(1))
.map(escapeRE)
.join('|');
const regText = '\\[([^\\[]+)\\](\\(\\*(' + regTerms + ')\\))';
const reg = new RegExp(regText, 'g');
for (j = 0, l = blockTokens.length; j < l; j++) {
if (blockTokens[j].type === 'heading_open') {
while (blockTokens[j].type !== 'heading_close') {
j++;
}
continue;
}
if (blockTokens[j].type !== 'inline') {
continue;
}
tokens = blockTokens[j].children;
for (i = tokens.length - 1; i >= 0; i--) {
currentToken = tokens[i];
if (currentToken.type === 'link_close') {
while (tokens[i].type !== 'link_open') {
i--;
}
continue;
}
if (!(currentToken.type === 'text')) {
continue;
}
pos = 0;
text = currentToken.content;
reg.lastIndex = 0;
nodes = [];
// Find terms without definitions
const regexAllTerms = new RegExp(constants_1.BASIC_TERM_REGEXP, 'gm');
const uniqueTerms = [
...new Set([...text.matchAll(regexAllTerms)].map((el) => `:${el[3]}`)),
];
const notDefinedTerms = uniqueTerms.filter((el) => !Object.keys(state.env.terms).includes(el));
if (notDefinedTerms.length && isLintRun) {
token = new state.Token('__yfm_lint', '', 0);
token.hidden = true;
token.map = blockTokens[j].map;
token.attrSet('YFM007', 'true');
nodes.push(token);
}
while ((term = reg.exec(text))) {
const termTitle = term[1];
const termKey = term[3];
if (term.index > 0 || term[1].length > 0) {
token = new state.Token('text', '', 0);
token.content = text.slice(pos, term.index);
nodes.push(token);
}
token = new state.Token('term_open', 'i', 1);
token.attrSet('class', 'yfm yfm-term_title');
token.attrSet('term-key', ':' + termKey);
token.attrSet('role', 'button');
token.attrSet('aria-describedby', ':' + termKey + '_element');
token.attrSet('tabindex', '0');
token.attrSet('id', (0, utils_1.generateID)());
nodes.push(token);
token = new state.Token('text', '', 0);
token.content = termTitle;
nodes.push(token);
token = new state.Token('term_close', 'i', -1);
nodes.push(token);
pos = reg.lastIndex;
}
if (!nodes.length) {
continue;
}
if (pos < text.length) {
token = new state.Token('text', '', 0);
token.content = text.slice(pos);
nodes.push(token);
}
// replace current node
blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
}
}
}
md.block.ruler.before('reference', 'termDefinitions', (0, termDefinitions_1.termDefinitions)(md, options), {
alt: ['paragraph', 'reference'],
});
md.core.ruler.after('linkify', 'termReplace', termReplace);
};
module.exports = term;
//# sourceMappingURL=index.js.map