Press n or j to go to the next uncovered block, b, p or k for the previous block.
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var disableRadio = false;
var useLabelWrapper = true;
/**
* Modified from https://github.com/revin/markdown-it-task-lists/blob/master/index.js
*/
module.exports = function(md, options) {
if (options) {
disableRadio = !options.enabled;
useLabelWrapper = !!options.label;
}
md.core.ruler.after('inline', 'radio-lists', function(state) {
var tokens = state.tokens;
for (var i = 2; i < tokens.length; i++) {
if (isTodoItem(tokens, i)) {
var group = attrGet(tokens[parentToken(tokens, i-2)], 'radio-group'); // try retrieve the group id
if (group) {
group = group[1];
} else {
var hash = crypto.createHash('md5');
if (i >= 5 && tokens[i-5]) {
hash.update(tokens[i-5].content);
}
if (i >= 4 && tokens[i-4]) {
hash.update(tokens[i-4].content);
}
group = hash.update(tokens[i].content).digest('hex').substr(2, 5); // generate a deterministic group id
}
radioify(tokens[i], state.Token, group);
attrSet(tokens[i-2], 'class', 'radio-list-item');
attrSet(tokens[parentToken(tokens, i-2)], 'radio-group', group); // save the group id to the top-level list
attrSet(tokens[parentToken(tokens, i-2)], 'class', 'radio-list');
}
}
});
};
function attrSet(token, name, value) {
var index = token.attrIndex(name);
var attr = [name, value];
if (index < 0) {
token.attrPush(attr);
} else {
token.attrs[index] = attr;
}
}
function attrGet(token, name) {
var index = token.attrIndex(name);
if (index < 0) {
return void(0);
} else {
return token.attrs[index];
}
}
function parentToken(tokens, index) {
var targetLevel = tokens[index].level - 1;
for (var i = index - 1; i >= 0; i--) {
if (tokens[i].level === targetLevel) {
return i;
}
}
return -1;
}
function isTodoItem(tokens, index) {
return isInline(tokens[index]) &&
isParagraph(tokens[index - 1]) &&
isListItem(tokens[index - 2]) &&
startsWithTodoMarkdown(tokens[index]);
}
function radioify(token, TokenConstructor, radioId) {
token.children.unshift(makeRadioButton(token, TokenConstructor, radioId));
token.children[1].content = token.children[1].content.slice(3);
token.content = token.content.slice(3);
if (useLabelWrapper) {
token.children.unshift(beginLabel(TokenConstructor));
token.children.push(endLabel(TokenConstructor));
}
}
function makeRadioButton(token, TokenConstructor, radioId) {
var radio = new TokenConstructor('html_inline', '', 0);
var disabledAttr = disableRadio ? ' disabled="" ' : '';
const isUnchecked = token.content.indexOf('( ) ') === 0;
const isChecked = token.content.indexOf('(x) ') === 0 ||
token.content.indexOf('(X) ') === 0;
if (isUnchecked) {
radio.content = '<input class="radio-list-input" name="' + radioId + '"' + disabledAttr + 'type="radio">';
} else Eif (isChecked) {
radio.content = '<input class="radio-list-input" checked="" name="' + radioId + '"' + disabledAttr + 'type="radio">';
}
return radio;
}
// these next two functions are kind of hacky; probably should really be a
// true block-level token with .tag=='label'
function beginLabel(TokenConstructor) {
var token = new TokenConstructor('html_inline', '', 0);
token.content = '<label>';
return token;
}
function endLabel(TokenConstructor) {
var token = new TokenConstructor('html_inline', '', 0);
token.content = '</label>';
return token;
}
function isInline(token) { return token.type === 'inline'; }
function isParagraph(token) { return token.type === 'paragraph_open'; }
function isListItem(token) { return token.type === 'list_item_open'; }
function startsWithTodoMarkdown(token) {
// leading whitespace in a list item is already trimmed off by markdown-it
return token.content.indexOf('( ) ') === 0 || token.content.indexOf('(x) ') === 0 || token.content.indexOf('(X) ') === 0;
}
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