(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.transform = factory());
}(this, (function () { 'use strict';
function unwrapExports (x) {
return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}
function createCommonjsModule(fn, basedir, module) {
return module = {
path: basedir,
exports: {},
require: function (path, base) {
return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
}
}, fn(module, module.exports), module.exports;
}
function commonjsRequire () {
throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
}
var textarea;
function decodeEntity(name) {
textarea = textarea || document.createElement('textarea');
textarea.innerHTML = '&' + name + ';';
return textarea.value;
}
/**
* Utility functions
*/
function typeOf(obj) {
return Object.prototype.toString.call(obj);
}
function isString(obj) {
return typeOf(obj) === '[object String]';
}
var hasOwn = Object.prototype.hasOwnProperty;
function has(object, key) {
return object
? hasOwn.call(object, key)
: false;
}
// Extend objects
//
function assign(obj /*from1, from2, from3, ...*/) {
var sources = [].slice.call(arguments, 1);
sources.forEach(function (source) {
if (!source) { return; }
if (typeof source !== 'object') {
throw new TypeError(source + 'must be object');
}
Object.keys(source).forEach(function (key) {
obj[key] = source[key];
});
});
return obj;
}
////////////////////////////////////////////////////////////////////////////////
var UNESCAPE_MD_RE = /\\([\\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g;
function unescapeMd(str) {
if (str.indexOf('\\') < 0) { return str; }
return str.replace(UNESCAPE_MD_RE, '$1');
}
////////////////////////////////////////////////////////////////////////////////
function isValidEntityCode(c) {
/*eslint no-bitwise:0*/
// broken sequence
if (c >= 0xD800 && c <= 0xDFFF) { return false; }
// never used
if (c >= 0xFDD0 && c <= 0xFDEF) { return false; }
if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) { return false; }
// control codes
if (c >= 0x00 && c <= 0x08) { return false; }
if (c === 0x0B) { return false; }
if (c >= 0x0E && c <= 0x1F) { return false; }
if (c >= 0x7F && c <= 0x9F) { return false; }
// out of range
if (c > 0x10FFFF) { return false; }
return true;
}
function fromCodePoint(c) {
/*eslint no-bitwise:0*/
if (c > 0xffff) {
c -= 0x10000;
var surrogate1 = 0xd800 + (c >> 10),
surrogate2 = 0xdc00 + (c & 0x3ff);
return String.fromCharCode(surrogate1, surrogate2);
}
return String.fromCharCode(c);
}
var NAMED_ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi;
var DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))/i;
function replaceEntityPattern(match, name) {
var code = 0;
var decoded = decodeEntity(name);
if (name !== decoded) {
return decoded;
} else if (name.charCodeAt(0) === 0x23/* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
code = name[1].toLowerCase() === 'x' ?
parseInt(name.slice(2), 16)
:
parseInt(name.slice(1), 10);
if (isValidEntityCode(code)) {
return fromCodePoint(code);
}
}
return match;
}
function replaceEntities(str) {
if (str.indexOf('&') < 0) { return str; }
return str.replace(NAMED_ENTITY_RE, replaceEntityPattern);
}
////////////////////////////////////////////////////////////////////////////////
var HTML_ESCAPE_TEST_RE = /[&<>"]/;
var HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
var HTML_REPLACEMENTS = {
'&': '&',
'<': '<',
'>': '>',
'"': '"'
};
function replaceUnsafeChar(ch) {
return HTML_REPLACEMENTS[ch];
}
function escapeHtml(str) {
if (HTML_ESCAPE_TEST_RE.test(str)) {
return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
}
return str;
}
var utils = /*#__PURE__*/Object.freeze({
isString: isString,
has: has,
assign: assign,
unescapeMd: unescapeMd,
isValidEntityCode: isValidEntityCode,
fromCodePoint: fromCodePoint,
replaceEntities: replaceEntities,
escapeHtml: escapeHtml
});
/**
* Renderer rules cache
*/
var rules = {};
/**
* Blockquotes
*/
rules.blockquote_open = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.blockquote_close = function(tokens, idx /*, options, env */) {
return '
' + getBreak(tokens, idx);
};
/**
* Code
*/
rules.code = function(tokens, idx /*, options, env */) {
if (tokens[idx].block) {
return '' + escapeHtml(tokens[idx].content) + '
' + getBreak(tokens, idx);
}
return '' + escapeHtml(tokens[idx].content) + '';
};
/**
* Fenced code blocks
*/
rules.fence = function(tokens, idx, options, env, instance) {
var token = tokens[idx];
var langClass = '';
var langPrefix = options.langPrefix;
var langName = '', fences, fenceName;
var highlighted;
if (token.params) {
//
// ```foo bar
//
// Try custom renderer "foo" first. That will simplify overwrite
// for diagrams, latex, and any other fenced block with custom look
//
fences = token.params.split(/\s+/g);
fenceName = fences.join(' ');
if (has(instance.rules.fence_custom, fences[0])) {
return instance.rules.fence_custom[fences[0]](tokens, idx, options, env, instance);
}
langName = escapeHtml(replaceEntities(unescapeMd(fenceName)));
langClass = ' class="' + langPrefix + langName + '"';
}
if (options.highlight) {
highlighted = options.highlight.apply(options.highlight, [ token.content ].concat(fences))
|| escapeHtml(token.content);
} else {
highlighted = escapeHtml(token.content);
}
return ''
+ highlighted
+ '
'
+ getBreak(tokens, idx);
};
rules.fence_custom = {};
/**
* Headings
*/
rules.heading_open = function(tokens, idx /*, options, env */) {
return '';
};
rules.heading_close = function(tokens, idx /*, options, env */) {
return '\n';
};
/**
* Horizontal rules
*/
rules.hr = function(tokens, idx, options /*, env */) {
return (options.xhtmlOut ? '
' : '
') + getBreak(tokens, idx);
};
/**
* Bullets
*/
rules.bullet_list_open = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.bullet_list_close = function(tokens, idx /*, options, env */) {
return '
' + getBreak(tokens, idx);
};
/**
* List items
*/
rules.list_item_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.list_item_close = function(/* tokens, idx, options, env */) {
return '\n';
};
/**
* Ordered list items
*/
rules.ordered_list_open = function(tokens, idx /*, options, env */) {
var token = tokens[idx];
var order = token.order > 1 ? ' start="' + token.order + '"' : '';
return '\n';
};
rules.ordered_list_close = function(tokens, idx /*, options, env */) {
return '' + getBreak(tokens, idx);
};
/**
* Paragraphs
*/
rules.paragraph_open = function(tokens, idx /*, options, env */) {
return tokens[idx].tight ? '' : '';
};
rules.paragraph_close = function(tokens, idx /*, options, env */) {
var addBreak = !(tokens[idx].tight && idx && tokens[idx - 1].type === 'inline' && !tokens[idx - 1].content);
return (tokens[idx].tight ? '' : '
') + (addBreak ? getBreak(tokens, idx) : '');
};
/**
* Links
*/
rules.link_open = function(tokens, idx, options /* env */) {
var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : '';
var target = options.linkTarget ? (' target="' + options.linkTarget + '"') : '';
return '';
};
rules.link_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Images
*/
rules.image = function(tokens, idx, options /*, env */) {
var src = ' src="' + escapeHtml(tokens[idx].src) + '"';
var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : '';
var alt = ' alt="' + (tokens[idx].alt ? escapeHtml(replaceEntities(unescapeMd(tokens[idx].alt))) : '') + '"';
var suffix = options.xhtmlOut ? ' /' : '';
return '';
};
/**
* Tables
*/
rules.table_open = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.table_close = function(/* tokens, idx, options, env */) {
return '
\n';
};
rules.thead_open = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.thead_close = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.tbody_open = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.tbody_close = function(/* tokens, idx, options, env */) {
return '\n';
};
rules.tr_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.tr_close = function(/* tokens, idx, options, env */) {
return '
\n';
};
rules.th_open = function(tokens, idx /*, options, env */) {
var token = tokens[idx];
return '';
};
rules.th_close = function(/* tokens, idx, options, env */) {
return '';
};
rules.td_open = function(tokens, idx /*, options, env */) {
var token = tokens[idx];
return '';
};
rules.td_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Bold
*/
rules.strong_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.strong_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Italicize
*/
rules.em_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.em_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Strikethrough
*/
rules.del_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.del_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Insert
*/
rules.ins_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.ins_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Highlight
*/
rules.mark_open = function(/* tokens, idx, options, env */) {
return '';
};
rules.mark_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Super- and sub-script
*/
rules.sub = function(tokens, idx /*, options, env */) {
return '' + escapeHtml(tokens[idx].content) + '';
};
rules.sup = function(tokens, idx /*, options, env */) {
return '' + escapeHtml(tokens[idx].content) + '';
};
/**
* Breaks
*/
rules.hardbreak = function(tokens, idx, options /*, env */) {
return options.xhtmlOut ? '
\n' : '
\n';
};
rules.softbreak = function(tokens, idx, options /*, env */) {
return options.breaks ? (options.xhtmlOut ? '
\n' : '
\n') : '\n';
};
/**
* Text
*/
rules.text = function(tokens, idx /*, options, env */) {
return escapeHtml(tokens[idx].content);
};
/**
* Content
*/
rules.htmlblock = function(tokens, idx /*, options, env */) {
return tokens[idx].content;
};
rules.htmltag = function(tokens, idx /*, options, env */) {
return tokens[idx].content;
};
/**
* Abbreviations, initialism
*/
rules.abbr_open = function(tokens, idx /*, options, env */) {
return '';
};
rules.abbr_close = function(/* tokens, idx, options, env */) {
return '';
};
/**
* Footnotes
*/
rules.footnote_ref = function(tokens, idx) {
var n = Number(tokens[idx].id + 1).toString();
var id = 'fnref' + n;
if (tokens[idx].subId > 0) {
id += ':' + tokens[idx].subId;
}
return '';
};
rules.footnote_block_open = function(tokens, idx, options) {
var hr = options.xhtmlOut
? '\n'
: '\n';
return hr + '\n';
};
rules.footnote_open = function(tokens, idx) {
var id = Number(tokens[idx].id + 1).toString();
return '\n';
};
rules.footnote_anchor = function(tokens, idx) {
var n = Number(tokens[idx].id + 1).toString();
var id = 'fnref' + n;
if (tokens[idx].subId > 0) {
id += ':' + tokens[idx].subId;
}
return ' ';
};
/**
* Definition lists
*/
rules.dl_open = function() {
return '\n';
};
rules.dt_open = function() {
return '- ';
};
rules.dd_open = function() {
return '
- ';
};
rules.dl_close = function() {
return '
\n';
};
rules.dt_close = function() {
return '\n';
};
rules.dd_close = function() {
return '\n';
};
/**
* Helper functions
*/
function nextToken(tokens, idx) {
if (++idx >= tokens.length - 2) {
return idx;
}
if ((tokens[idx].type === 'paragraph_open' && tokens[idx].tight) &&
(tokens[idx + 1].type === 'inline' && tokens[idx + 1].content.length === 0) &&
(tokens[idx + 2].type === 'paragraph_close' && tokens[idx + 2].tight)) {
return nextToken(tokens, idx + 2);
}
return idx;
}
/**
* Check to see if `\n` is needed before the next token.
*
* @param {Array} `tokens`
* @param {Number} `idx`
* @return {String} Empty string or newline
* @api private
*/
var getBreak = rules.getBreak = function getBreak(tokens, idx) {
idx = nextToken(tokens, idx);
if (idx < tokens.length && tokens[idx].type === 'list_item_close') {
return '';
}
return '\n';
};
/**
* Renderer class. Renders HTML and exposes `rules` to allow
* local modifications.
*/
function Renderer() {
this.rules = assign({}, rules);
// exported helper, for custom rules only
this.getBreak = rules.getBreak;
}
/**
* Render a string of inline HTML with the given `tokens` and
* `options`.
*
* @param {Array} `tokens`
* @param {Object} `options`
* @param {Object} `env`
* @return {String}
* @api public
*/
Renderer.prototype.renderInline = function (tokens, options, env) {
var _rules = this.rules;
var len = tokens.length, i = 0;
var result = '';
while (len--) {
result += _rules[tokens[i].type](tokens, i++, options, env, this);
}
return result;
};
/**
* Render a string of HTML with the given `tokens` and
* `options`.
*
* @param {Array} `tokens`
* @param {Object} `options`
* @param {Object} `env`
* @return {String}
* @api public
*/
Renderer.prototype.render = function (tokens, options, env) {
var _rules = this.rules;
var len = tokens.length, i = -1;
var result = '';
while (++i < len) {
if (tokens[i].type === 'inline') {
result += this.renderInline(tokens[i].children, options, env);
} else {
result += _rules[tokens[i].type](tokens, i, options, env, this);
}
}
return result;
};
/**
* Ruler is a helper class for building responsibility chains from
* parse rules. It allows:
*
* - easy stack rules chains
* - getting main chain and named chains content (as arrays of functions)
*
* Helper methods, should not be used directly.
* @api private
*/
function Ruler() {
// List of added rules. Each element is:
//
// { name: XXX,
// enabled: Boolean,
// fn: Function(),
// alt: [ name2, name3 ] }
//
this.__rules__ = [];
// Cached rule chains.
//
// First level - chain name, '' for default.
// Second level - digital anchor for fast filtering by charcodes.
//
this.__cache__ = null;
}
/**
* Find the index of a rule by `name`.
*
* @param {String} `name`
* @return {Number} Index of the given `name`
* @api private
*/
Ruler.prototype.__find__ = function (name) {
var len = this.__rules__.length;
var i = -1;
while (len--) {
if (this.__rules__[++i].name === name) {
return i;
}
}
return -1;
};
/**
* Build the rules lookup cache
*
* @api private
*/
Ruler.prototype.__compile__ = function () {
var self = this;
var chains = [ '' ];
// collect unique names
self.__rules__.forEach(function (rule) {
if (!rule.enabled) {
return;
}
rule.alt.forEach(function (altName) {
if (chains.indexOf(altName) < 0) {
chains.push(altName);
}
});
});
self.__cache__ = {};
chains.forEach(function (chain) {
self.__cache__[chain] = [];
self.__rules__.forEach(function (rule) {
if (!rule.enabled) {
return;
}
if (chain && rule.alt.indexOf(chain) < 0) {
return;
}
self.__cache__[chain].push(rule.fn);
});
});
};
/**
* Ruler public methods
* ------------------------------------------------
*/
/**
* Replace rule function
*
* @param {String} `name` Rule name
* @param {Function `fn`
* @param {Object} `options`
* @api private
*/
Ruler.prototype.at = function (name, fn, options) {
var idx = this.__find__(name);
var opt = options || {};
if (idx === -1) {
throw new Error('Parser rule not found: ' + name);
}
this.__rules__[idx].fn = fn;
this.__rules__[idx].alt = opt.alt || [];
this.__cache__ = null;
};
/**
* Add a rule to the chain before given the `ruleName`.
*
* @param {String} `beforeName`
* @param {String} `ruleName`
* @param {Function} `fn`
* @param {Object} `options`
* @api private
*/
Ruler.prototype.before = function (beforeName, ruleName, fn, options) {
var idx = this.__find__(beforeName);
var opt = options || {};
if (idx === -1) {
throw new Error('Parser rule not found: ' + beforeName);
}
this.__rules__.splice(idx, 0, {
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Add a rule to the chain after the given `ruleName`.
*
* @param {String} `afterName`
* @param {String} `ruleName`
* @param {Function} `fn`
* @param {Object} `options`
* @api private
*/
Ruler.prototype.after = function (afterName, ruleName, fn, options) {
var idx = this.__find__(afterName);
var opt = options || {};
if (idx === -1) {
throw new Error('Parser rule not found: ' + afterName);
}
this.__rules__.splice(idx + 1, 0, {
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Add a rule to the end of chain.
*
* @param {String} `ruleName`
* @param {Function} `fn`
* @param {Object} `options`
* @return {String}
*/
Ruler.prototype.push = function (ruleName, fn, options) {
var opt = options || {};
this.__rules__.push({
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Enable a rule or list of rules.
*
* @param {String|Array} `list` Name or array of rule names to enable
* @param {Boolean} `strict` If `true`, all non listed rules will be disabled.
* @api private
*/
Ruler.prototype.enable = function (list, strict) {
list = !Array.isArray(list)
? [ list ]
: list;
// In strict mode disable all existing rules first
if (strict) {
this.__rules__.forEach(function (rule) {
rule.enabled = false;
});
}
// Search by name and enable
list.forEach(function (name) {
var idx = this.__find__(name);
if (idx < 0) {
throw new Error('Rules manager: invalid rule name ' + name);
}
this.__rules__[idx].enabled = true;
}, this);
this.__cache__ = null;
};
/**
* Disable a rule or list of rules.
*
* @param {String|Array} `list` Name or array of rule names to disable
* @api private
*/
Ruler.prototype.disable = function (list) {
list = !Array.isArray(list)
? [ list ]
: list;
// Search by name and disable
list.forEach(function (name) {
var idx = this.__find__(name);
if (idx < 0) {
throw new Error('Rules manager: invalid rule name ' + name);
}
this.__rules__[idx].enabled = false;
}, this);
this.__cache__ = null;
};
/**
* Get a rules list as an array of functions.
*
* @param {String} `chainName`
* @return {Object}
* @api private
*/
Ruler.prototype.getRules = function (chainName) {
if (this.__cache__ === null) {
this.__compile__();
}
return this.__cache__[chainName] || [];
};
function block(state) {
if (state.inlineMode) {
state.tokens.push({
type: 'inline',
content: state.src.replace(/\n/g, ' ').trim(),
level: 0,
lines: [ 0, 1 ],
children: []
});
} else {
state.block.parse(state.src, state.options, state.env, state.tokens);
}
}
// Inline parser state
function StateInline(src, parserInline, options, env, outTokens) {
this.src = src;
this.env = env;
this.options = options;
this.parser = parserInline;
this.tokens = outTokens;
this.pos = 0;
this.posMax = this.src.length;
this.level = 0;
this.pending = '';
this.pendingLevel = 0;
this.cache = []; // Stores { start: end } pairs. Useful for backtrack
// optimization of pairs parse (emphasis, strikes).
// Link parser state vars
this.isInLabel = false; // Set true when seek link label - we should disable
// "paired" rules (emphasis, strikes) to not skip
// tailing `]`
this.linkLevel = 0; // Increment for each nesting link. Used to prevent
// nesting in definitions
this.linkContent = ''; // Temporary storage for link url
this.labelUnmatchedScopes = 0; // Track unpaired `[` for link labels
// (backtrack optimization)
}
// Flush pending text
//
StateInline.prototype.pushPending = function () {
this.tokens.push({
type: 'text',
content: this.pending,
level: this.pendingLevel
});
this.pending = '';
};
// Push new token to "stream".
// If pending text exists - flush it as text token
//
StateInline.prototype.push = function (token) {
if (this.pending) {
this.pushPending();
}
this.tokens.push(token);
this.pendingLevel = this.level;
};
// Store value to cache.
// !!! Implementation has parser-specific optimizations
// !!! keys MUST be integer, >= 0; values MUST be integer, > 0
//
StateInline.prototype.cacheSet = function (key, val) {
for (var i = this.cache.length; i <= key; i++) {
this.cache.push(0);
}
this.cache[key] = val;
};
// Get cache value
//
StateInline.prototype.cacheGet = function (key) {
return key < this.cache.length ? this.cache[key] : 0;
};
/**
* Parse link labels
*
* This function assumes that first character (`[`) already matches;
* returns the end of the label.
*
* @param {Object} state
* @param {Number} start
* @api private
*/
function parseLinkLabel(state, start) {
var level, found, marker,
labelEnd = -1,
max = state.posMax,
oldPos = state.pos,
oldFlag = state.isInLabel;
if (state.isInLabel) { return -1; }
if (state.labelUnmatchedScopes) {
state.labelUnmatchedScopes--;
return -1;
}
state.pos = start + 1;
state.isInLabel = true;
level = 1;
while (state.pos < max) {
marker = state.src.charCodeAt(state.pos);
if (marker === 0x5B /* [ */) {
level++;
} else if (marker === 0x5D /* ] */) {
level--;
if (level === 0) {
found = true;
break;
}
}
state.parser.skipToken(state);
}
if (found) {
labelEnd = state.pos;
state.labelUnmatchedScopes = 0;
} else {
state.labelUnmatchedScopes = level - 1;
}
// restore old state
state.pos = oldPos;
state.isInLabel = oldFlag;
return labelEnd;
}
// Parse abbreviation definitions, i.e. `*[abbr]: description`
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;
}
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;
}
}
}
}
function normalizeLink(url) {
var normalized = replaceEntities(url);
// We shouldn't care about the result of malformed URIs,
// and should not throw an exception.
try {
normalized = decodeURI(normalized);
} catch (err) {}
return encodeURI(normalized);
}
/**
* Parse link destination
*
* - on success it returns a string and updates state.pos;
* - on failure it returns null
*
* @param {Object} state
* @param {Number} pos
* @api private
*/
function parseLinkDestination(state, pos) {
var code, level, link,
start = pos,
max = state.posMax;
if (state.src.charCodeAt(pos) === 0x3C /* < */) {
pos++;
while (pos < max) {
code = state.src.charCodeAt(pos);
if (code === 0x0A /* \n */) { return false; }
if (code === 0x3E /* > */) {
link = normalizeLink(unescapeMd(state.src.slice(start + 1, pos)));
if (!state.parser.validateLink(link)) { return false; }
state.pos = pos + 1;
state.linkContent = link;
return true;
}
if (code === 0x5C /* \ */ && pos + 1 < max) {
pos += 2;
continue;
}
pos++;
}
// no closing '>'
return false;
}
// this should be ... } else { ... branch
level = 0;
while (pos < max) {
code = state.src.charCodeAt(pos);
if (code === 0x20) { break; }
// ascii control chars
if (code < 0x20 || code === 0x7F) { break; }
if (code === 0x5C /* \ */ && pos + 1 < max) {
pos += 2;
continue;
}
if (code === 0x28 /* ( */) {
level++;
if (level > 1) { break; }
}
if (code === 0x29 /* ) */) {
level--;
if (level < 0) { break; }
}
pos++;
}
if (start === pos) { return false; }
link = unescapeMd(state.src.slice(start, pos));
if (!state.parser.validateLink(link)) { return false; }
state.linkContent = link;
state.pos = pos;
return true;
}
/**
* Parse link title
*
* - on success it returns a string and updates state.pos;
* - on failure it returns null
*
* @param {Object} state
* @param {Number} pos
* @api private
*/
function parseLinkTitle(state, pos) {
var code,
start = pos,
max = state.posMax,
marker = state.src.charCodeAt(pos);
if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) { return false; }
pos++;
// if opening marker is "(", switch it to closing marker ")"
if (marker === 0x28) { marker = 0x29; }
while (pos < max) {
code = state.src.charCodeAt(pos);
if (code === marker) {
state.pos = pos + 1;
state.linkContent = unescapeMd(state.src.slice(start + 1, pos));
return true;
}
if (code === 0x5C /* \ */ && pos + 1 < max) {
pos += 2;
continue;
}
pos++;
}
return false;
}
function normalizeReference(str) {
// use .toUpperCase() instead of .toLowerCase()
// here to avoid a conflict with Object.prototype
// members (most notably, `__proto__`)
return str.trim().replace(/\s+/g, ' ').toUpperCase();
}
function parseReference(str, parser, options, env) {
var state, labelEnd, pos, max, code, start, href, title, label;
if (str.charCodeAt(0) !== 0x5B/* [ */) { return -1; }
if (str.indexOf(']:') === -1) { return -1; }
state = new StateInline(str, parser, options, env, []);
labelEnd = parseLinkLabel(state, 0);
if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; }
max = state.posMax;
// [label]: destination 'title'
// ^^^ skip optional whitespace here
for (pos = labelEnd + 2; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
// [label]: destination 'title'
// ^^^^^^^^^^^ parse this
if (!parseLinkDestination(state, pos)) { return -1; }
href = state.linkContent;
pos = state.pos;
// [label]: destination 'title'
// ^^^ skipping those spaces
start = pos;
for (pos = pos + 1; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
// [label]: destination 'title'
// ^^^^^^^ parse this
if (pos < max && start !== pos && parseLinkTitle(state, pos)) {
title = state.linkContent;
pos = state.pos;
} else {
title = '';
pos = start;
}
// ensure that the end of the line is empty
while (pos < max && state.src.charCodeAt(pos) === 0x20/* space */) { pos++; }
if (pos < max && state.src.charCodeAt(pos) !== 0x0A) { return -1; }
label = normalizeReference(str.slice(1, labelEnd));
if (typeof env.references[label] === 'undefined') {
env.references[label] = { title: title, href: href };
}
return pos;
}
function references(state) {
var tokens = state.tokens, i, l, content, pos;
state.env.references = state.env.references || {};
if (state.inlineMode) {
return;
}
// Scan definitions in paragraph inlines
for (i = 1, l = tokens.length - 1; i < l; i++) {
if (tokens[i].type === 'inline' &&
tokens[i - 1].type === 'paragraph_open' &&
tokens[i + 1].type === 'paragraph_close') {
content = tokens[i].content;
while (content.length) {
pos = parseReference(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;
}
}
}
}
function inline(state) {
var tokens = state.tokens, tok, i, l;
// Parse inlines
for (i = 0, l = tokens.length; i < l; i++) {
tok = tokens[i];
if (tok.type === 'inline') {
state.inline.parse(tok.content, state.options, state.env, tok.children);
}
}
}
function footnote_block(state) {
var i, l, j, t, lastParagraph, list, tokens, current, currentLabel,
level = 0,
insideRef = false,
refTokens = {};
if (!state.env.footnotes) { return; }
state.tokens = state.tokens.filter(function(tok) {
if (tok.type === 'footnote_reference_open') {
insideRef = true;
current = [];
currentLabel = tok.label;
return false;
}
if (tok.type === 'footnote_reference_close') {
insideRef = false;
// prepend ':' to avoid conflict with Object.prototype members
refTokens[':' + currentLabel] = current;
return false;
}
if (insideRef) { current.push(tok); }
return !insideRef;
});
if (!state.env.footnotes.list) { return; }
list = state.env.footnotes.list;
state.tokens.push({
type: 'footnote_block_open',
level: level++
});
for (i = 0, l = list.length; i < l; i++) {
state.tokens.push({
type: 'footnote_open',
id: i,
level: level++
});
if (list[i].tokens) {
tokens = [];
tokens.push({
type: 'paragraph_open',
tight: false,
level: level++
});
tokens.push({
type: 'inline',
content: '',
level: level,
children: list[i].tokens
});
tokens.push({
type: 'paragraph_close',
tight: false,
level: --level
});
} else if (list[i].label) {
tokens = refTokens[':' + list[i].label];
}
state.tokens = state.tokens.concat(tokens);
if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') {
lastParagraph = state.tokens.pop();
} else {
lastParagraph = null;
}
t = list[i].count > 0 ? list[i].count : 1;
for (j = 0; j < t; j++) {
state.tokens.push({
type: 'footnote_anchor',
id: i,
subId: j,
level: level
});
}
if (lastParagraph) {
state.tokens.push(lastParagraph);
}
state.tokens.push({
type: 'footnote_close',
level: --level
});
}
state.tokens.push({
type: 'footnote_block_close',
level: --level
});
}
// Enclose abbreviations in tags
//
var PUNCT_CHARS = ' \n()[]\'".,!?-';
// from Google closure library
// http://closure-library.googlecode.com/git-history/docs/local_closure_goog_string_string.js.source.html#line1021
function regEscape(s) {
return s.replace(/([-()\[\]{}+?*.$\^|,:#= 0; i--) {
token = tokens[i];
if (token.type !== 'text') { continue; }
pos = 0;
text = token.content;
reg.lastIndex = 0;
level = token.level;
nodes = [];
while ((m = reg.exec(text))) {
if (reg.lastIndex > pos) {
nodes.push({
type: 'text',
content: text.slice(pos, m.index + m[1].length),
level: level
});
}
nodes.push({
type: 'abbr_open',
title: state.env.abbreviations[':' + m[2]],
level: level++
});
nodes.push({
type: 'text',
content: m[2],
level: level
});
nodes.push({
type: 'abbr_close',
level: --level
});
pos = reg.lastIndex - m[3].length;
}
if (!nodes.length) { continue; }
if (pos < text.length) {
nodes.push({
type: 'text',
content: text.slice(pos),
level: level
});
}
// replace current node
blockTokens[j].children = tokens = [].concat(tokens.slice(0, i), nodes, tokens.slice(i + 1));
}
}
}
// Simple typographical replacements
//
// TODO:
// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
// - miltiplication 2 x 4 -> 2 × 4
var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig;
var SCOPED_ABBR = {
'c': '©',
'r': '®',
'p': '§',
'tm': '™'
};
function replaceScopedAbbr(str) {
if (str.indexOf('(') < 0) { return str; }
return str.replace(SCOPED_ABBR_RE, function(match, name) {
return SCOPED_ABBR[name.toLowerCase()];
});
}
function replace(state) {
var i, token, text, inlineTokens, blkIdx;
if (!state.options.typographer) { return; }
for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
if (state.tokens[blkIdx].type !== 'inline') { continue; }
inlineTokens = state.tokens[blkIdx].children;
for (i = inlineTokens.length - 1; i >= 0; i--) {
token = inlineTokens[i];
if (token.type === 'text') {
text = token.content;
text = replaceScopedAbbr(text);
if (RARE_RE.test(text)) {
text = text
.replace(/\+-/g, '±')
// .., ..., ....... -> …
// but ?..... & !..... -> ?.. & !..
.replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..')
.replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',')
// em-dash
.replace(/(^|[^-])---([^-]|$)/mg, '$1\u2014$2')
// en-dash
.replace(/(^|\s)--(\s|$)/mg, '$1\u2013$2')
.replace(/(^|[^-\s])--([^-\s]|$)/mg, '$1\u2013$2');
}
token.content = text;
}
}
}
}
// Convert straight quotation marks to typographic ones
//
var QUOTE_TEST_RE = /['"]/;
var QUOTE_RE = /['"]/g;
var PUNCT_RE = /[-\s()\[\]]/;
var APOSTROPHE = '’';
// This function returns true if the character at `pos`
// could be inside a word.
function isLetter(str, pos) {
if (pos < 0 || pos >= str.length) { return false; }
return !PUNCT_RE.test(str[pos]);
}
function replaceAt(str, index, ch) {
return str.substr(0, index) + ch + str.substr(index + 1);
}
function smartquotes(state) {
/*eslint max-depth:0*/
var i, token, text, t, pos, max, thisLevel, lastSpace, nextSpace, item,
canOpen, canClose, j, isSingle, blkIdx, tokens,
stack;
if (!state.options.typographer) { return; }
stack = [];
for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
if (state.tokens[blkIdx].type !== 'inline') { continue; }
tokens = state.tokens[blkIdx].children;
stack.length = 0;
for (i = 0; i < tokens.length; i++) {
token = tokens[i];
if (token.type !== 'text' || QUOTE_TEST_RE.test(token.text)) { continue; }
thisLevel = tokens[i].level;
for (j = stack.length - 1; j >= 0; j--) {
if (stack[j].level <= thisLevel) { break; }
}
stack.length = j + 1;
text = token.content;
pos = 0;
max = text.length;
/*eslint no-labels:0,block-scoped-var:0*/
OUTER:
while (pos < max) {
QUOTE_RE.lastIndex = pos;
t = QUOTE_RE.exec(text);
if (!t) { break; }
lastSpace = !isLetter(text, t.index - 1);
pos = t.index + 1;
isSingle = (t[0] === "'");
nextSpace = !isLetter(text, pos);
if (!nextSpace && !lastSpace) {
// middle of word
if (isSingle) {
token.content = replaceAt(token.content, t.index, APOSTROPHE);
}
continue;
}
canOpen = !nextSpace;
canClose = !lastSpace;
if (canClose) {
// this could be a closing quote, rewind the stack to get a match
for (j = stack.length - 1; j >= 0; j--) {
item = stack[j];
if (stack[j].level < thisLevel) { break; }
if (item.single === isSingle && stack[j].level === thisLevel) {
item = stack[j];
if (isSingle) {
tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[2]);
token.content = replaceAt(token.content, t.index, state.options.quotes[3]);
} else {
tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[0]);
token.content = replaceAt(token.content, t.index, state.options.quotes[1]);
}
stack.length = j;
continue OUTER;
}
}
}
if (canOpen) {
stack.push({
token: i,
pos: t.index,
single: isSingle,
level: thisLevel
});
} else if (canClose && isSingle) {
token.content = replaceAt(token.content, t.index, APOSTROPHE);
}
}
}
}
}
/**
* Core parser `rules`
*/
var _rules = [
[ 'block', block ],
[ 'abbr', abbr ],
[ 'references', references ],
[ 'inline', inline ],
[ 'footnote_tail', footnote_block ],
[ 'abbr2', abbr2 ],
[ 'replacements', replace ],
[ 'smartquotes', smartquotes ],
];
/**
* Class for top level (`core`) parser rules
*
* @api private
*/
function Core() {
this.options = {};
this.ruler = new Ruler();
for (var i = 0; i < _rules.length; i++) {
this.ruler.push(_rules[i][0], _rules[i][1]);
}
}
/**
* Process rules with the given `state`
*
* @param {Object} `state`
* @api private
*/
Core.prototype.process = function (state) {
var i, l, rules;
rules = this.ruler.getRules('');
for (i = 0, l = rules.length; i < l; i++) {
rules[i](state);
}
};
// Parser state class
function StateBlock(src, parser, options, env, tokens) {
var ch, s, start, pos, len, indent, indent_found;
this.src = src;
// Shortcuts to simplify nested calls
this.parser = parser;
this.options = options;
this.env = env;
//
// Internal state vartiables
//
this.tokens = tokens;
this.bMarks = []; // line begin offsets for fast jumps
this.eMarks = []; // line end offsets for fast jumps
this.tShift = []; // indent for each line
// block parser variables
this.blkIndent = 0; // required block content indent
// (for example, if we are in list)
this.line = 0; // line index in src
this.lineMax = 0; // lines count
this.tight = false; // loose/tight mode for lists
this.parentType = 'root'; // if `list`, block parser stops on two newlines
this.ddIndent = -1; // indent of the current dd block (-1 if there isn't any)
this.level = 0;
// renderer
this.result = '';
// Create caches
// Generate markers.
s = this.src;
indent = 0;
indent_found = false;
for (start = pos = indent = 0, len = s.length; pos < len; pos++) {
ch = s.charCodeAt(pos);
if (!indent_found) {
if (ch === 0x20/* space */) {
indent++;
continue;
} else {
indent_found = true;
}
}
if (ch === 0x0A || pos === len - 1) {
if (ch !== 0x0A) { pos++; }
this.bMarks.push(start);
this.eMarks.push(pos);
this.tShift.push(indent);
indent_found = false;
indent = 0;
start = pos + 1;
}
}
// Push fake entry to simplify cache bounds checks
this.bMarks.push(s.length);
this.eMarks.push(s.length);
this.tShift.push(0);
this.lineMax = this.bMarks.length - 1; // don't count last fake line
}
StateBlock.prototype.isEmpty = function isEmpty(line) {
return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
};
StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
for (var max = this.lineMax; from < max; from++) {
if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
break;
}
}
return from;
};
// Skip spaces from given position.
StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
for (var max = this.src.length; pos < max; pos++) {
if (this.src.charCodeAt(pos) !== 0x20/* space */) { break; }
}
return pos;
};
// Skip char codes from given position
StateBlock.prototype.skipChars = function skipChars(pos, code) {
for (var max = this.src.length; pos < max; pos++) {
if (this.src.charCodeAt(pos) !== code) { break; }
}
return pos;
};
// Skip char codes reverse from given position - 1
StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
if (pos <= min) { return pos; }
while (pos > min) {
if (code !== this.src.charCodeAt(--pos)) { return pos + 1; }
}
return pos;
};
// cut lines range from source.
StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
var i, first, last, queue, shift,
line = begin;
if (begin >= end) {
return '';
}
// Opt: don't use push queue for single line;
if (line + 1 === end) {
first = this.bMarks[line] + Math.min(this.tShift[line], indent);
last = keepLastLF ? this.eMarks[line] + 1 : this.eMarks[line];
return this.src.slice(first, last);
}
queue = new Array(end - begin);
for (i = 0; line < end; line++, i++) {
shift = this.tShift[line];
if (shift > indent) { shift = indent; }
if (shift < 0) { shift = 0; }
first = this.bMarks[line] + shift;
if (line + 1 < end || keepLastLF) {
// No need for bounds check because we have fake entry on tail.
last = this.eMarks[line] + 1;
} else {
last = this.eMarks[line];
}
queue[i] = this.src.slice(first, last);
}
return queue.join('');
};
// Code block (4 spaces padded)
function code(state, startLine, endLine/*, silent*/) {
var nextLine, last;
if (state.tShift[startLine] - state.blkIndent < 4) { return false; }
last = nextLine = startLine + 1;
while (nextLine < endLine) {
if (state.isEmpty(nextLine)) {
nextLine++;
continue;
}
if (state.tShift[nextLine] - state.blkIndent >= 4) {
nextLine++;
last = nextLine;
continue;
}
break;
}
state.line = nextLine;
state.tokens.push({
type: 'code',
content: state.getLines(startLine, last, 4 + state.blkIndent, true),
block: true,
lines: [ startLine, state.line ],
level: state.level
});
return true;
}
// fences (``` lang, ~~~ lang)
function fences(state, startLine, endLine, silent) {
var marker, len, params, nextLine, mem,
haveEndMarker = false,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
if (pos + 3 > max) { return false; }
marker = state.src.charCodeAt(pos);
if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) {
return false;
}
// scan marker length
mem = pos;
pos = state.skipChars(pos, marker);
len = pos - mem;
if (len < 3) { return false; }
params = state.src.slice(pos, max).trim();
if (params.indexOf('`') >= 0) { return false; }
// Since start is found, we can report success here in validation mode
if (silent) { return true; }
// search end of block
nextLine = startLine;
for (;;) {
nextLine++;
if (nextLine >= endLine) {
// unclosed block should be autoclosed by end of document.
// also block seems to be autoclosed by end of parent
break;
}
pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos < max && state.tShift[nextLine] < state.blkIndent) {
// non-empty line with negative indent should stop the list:
// - ```
// test
break;
}
if (state.src.charCodeAt(pos) !== marker) { continue; }
if (state.tShift[nextLine] - state.blkIndent >= 4) {
// closing fence should be indented less than 4 spaces
continue;
}
pos = state.skipChars(pos, marker);
// closing code fence must be at least as long as the opening one
if (pos - mem < len) { continue; }
// make sure tail has spaces only
pos = state.skipSpaces(pos);
if (pos < max) { continue; }
haveEndMarker = true;
// found!
break;
}
// If a fence has heading spaces, they should be removed from its inner block
len = state.tShift[startLine];
state.line = nextLine + (haveEndMarker ? 1 : 0);
state.tokens.push({
type: 'fence',
params: params,
content: state.getLines(startLine + 1, nextLine, len, true),
lines: [ startLine, state.line ],
level: state.level
});
return true;
}
// Block quotes
function blockquote(state, startLine, endLine, silent) {
var nextLine, lastLineEmpty, oldTShift, oldBMarks, oldIndent, oldParentType, lines,
terminatorRules,
i, l, terminate,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
if (pos > max) { return false; }
// check the block quote marker
if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
// we know that it's going to be a valid blockquote,
// so no point trying to find the end of it in silent mode
if (silent) { return true; }
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20) { pos++; }
oldIndent = state.blkIndent;
state.blkIndent = 0;
oldBMarks = [ state.bMarks[startLine] ];
state.bMarks[startLine] = pos;
// check if we have an empty blockquote
pos = pos < max ? state.skipSpaces(pos) : pos;
lastLineEmpty = pos >= max;
oldTShift = [ state.tShift[startLine] ];
state.tShift[startLine] = pos - state.bMarks[startLine];
terminatorRules = state.parser.ruler.getRules('blockquote');
// Search the end of the block
//
// Block ends with either:
// 1. an empty line outside:
// ```
// > test
//
// ```
// 2. an empty line inside:
// ```
// >
// test
// ```
// 3. another tag
// ```
// > test
// - - -
// ```
for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
pos = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos >= max) {
// Case 1: line is not inside the blockquote, and this line is empty.
break;
}
if (state.src.charCodeAt(pos++) === 0x3E/* > */) {
// This line is inside the blockquote.
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20) { pos++; }
oldBMarks.push(state.bMarks[nextLine]);
state.bMarks[nextLine] = pos;
pos = pos < max ? state.skipSpaces(pos) : pos;
lastLineEmpty = pos >= max;
oldTShift.push(state.tShift[nextLine]);
state.tShift[nextLine] = pos - state.bMarks[nextLine];
continue;
}
// Case 2: line is not inside the blockquote, and the last line was empty.
if (lastLineEmpty) { break; }
// Case 3: another tag found.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
oldBMarks.push(state.bMarks[nextLine]);
oldTShift.push(state.tShift[nextLine]);
// A negative number means that this is a paragraph continuation;
//
// Any negative number will do the job here, but it's better for it
// to be large enough to make any bugs obvious.
state.tShift[nextLine] = -1337;
}
oldParentType = state.parentType;
state.parentType = 'blockquote';
state.tokens.push({
type: 'blockquote_open',
lines: lines = [ startLine, 0 ],
level: state.level++
});
state.parser.tokenize(state, startLine, nextLine);
state.tokens.push({
type: 'blockquote_close',
level: --state.level
});
state.parentType = oldParentType;
lines[1] = state.line;
// Restore original tShift; this might not be necessary since the parser
// has already been here, but just to make sure we can do that.
for (i = 0; i < oldTShift.length; i++) {
state.bMarks[i + startLine] = oldBMarks[i];
state.tShift[i + startLine] = oldTShift[i];
}
state.blkIndent = oldIndent;
return true;
}
// Horizontal rule
function hr(state, startLine, endLine, silent) {
var marker, cnt, ch,
pos = state.bMarks[startLine],
max = state.eMarks[startLine];
pos += state.tShift[startLine];
if (pos > max) { return false; }
marker = state.src.charCodeAt(pos++);
// Check hr marker
if (marker !== 0x2A/* * */ &&
marker !== 0x2D/* - */ &&
marker !== 0x5F/* _ */) {
return false;
}
// markers can be mixed with spaces, but there should be at least 3 one
cnt = 1;
while (pos < max) {
ch = state.src.charCodeAt(pos++);
if (ch !== marker && ch !== 0x20/* space */) { return false; }
if (ch === marker) { cnt++; }
}
if (cnt < 3) { return false; }
if (silent) { return true; }
state.line = startLine + 1;
state.tokens.push({
type: 'hr',
lines: [ startLine, state.line ],
level: state.level
});
return true;
}
// Lists
// Search `[-+*][\n ]`, returns next pos arter marker on success
// or -1 on fail.
function skipBulletListMarker(state, startLine) {
var marker, pos, max;
pos = state.bMarks[startLine] + state.tShift[startLine];
max = state.eMarks[startLine];
if (pos >= max) { return -1; }
marker = state.src.charCodeAt(pos++);
// Check bullet
if (marker !== 0x2A/* * */ &&
marker !== 0x2D/* - */ &&
marker !== 0x2B/* + */) {
return -1;
}
if (pos < max && state.src.charCodeAt(pos) !== 0x20) {
// " 1.test " - is not a list item
return -1;
}
return pos;
}
// Search `\d+[.)][\n ]`, returns next pos arter marker on success
// or -1 on fail.
function skipOrderedListMarker(state, startLine) {
var ch,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
if (pos + 1 >= max) { return -1; }
ch = state.src.charCodeAt(pos++);
if (ch < 0x30/* 0 */ || ch > 0x39/* 9 */) { return -1; }
for (;;) {
// EOL -> fail
if (pos >= max) { return -1; }
ch = state.src.charCodeAt(pos++);
if (ch >= 0x30/* 0 */ && ch <= 0x39/* 9 */) {
continue;
}
// found valid marker
if (ch === 0x29/* ) */ || ch === 0x2e/* . */) {
break;
}
return -1;
}
if (pos < max && state.src.charCodeAt(pos) !== 0x20/* space */) {
// " 1.test " - is not a list item
return -1;
}
return pos;
}
function markTightParagraphs(state, idx) {
var i, l,
level = state.level + 2;
for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
state.tokens[i + 2].tight = true;
state.tokens[i].tight = true;
i += 2;
}
}
}
function list(state, startLine, endLine, silent) {
var nextLine,
indent,
oldTShift,
oldIndent,
oldTight,
oldParentType,
start,
posAfterMarker,
max,
indentAfterMarker,
markerValue,
markerCharCode,
isOrdered,
contentStart,
listTokIdx,
prevEmptyEnd,
listLines,
itemLines,
tight = true,
terminatorRules,
i, l, terminate;
// Detect list type and position after marker
if ((posAfterMarker = skipOrderedListMarker(state, startLine)) >= 0) {
isOrdered = true;
} else if ((posAfterMarker = skipBulletListMarker(state, startLine)) >= 0) {
isOrdered = false;
} else {
return false;
}
if (state.level >= state.options.maxNesting) { return false; }
// We should terminate list on style change. Remember first one to compare.
markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
// For validation mode we can terminate immediately
if (silent) { return true; }
// Start list
listTokIdx = state.tokens.length;
if (isOrdered) {
start = state.bMarks[startLine] + state.tShift[startLine];
markerValue = Number(state.src.substr(start, posAfterMarker - start - 1));
state.tokens.push({
type: 'ordered_list_open',
order: markerValue,
lines: listLines = [ startLine, 0 ],
level: state.level++
});
} else {
state.tokens.push({
type: 'bullet_list_open',
lines: listLines = [ startLine, 0 ],
level: state.level++
});
}
//
// Iterate list items
//
nextLine = startLine;
prevEmptyEnd = false;
terminatorRules = state.parser.ruler.getRules('list');
while (nextLine < endLine) {
contentStart = state.skipSpaces(posAfterMarker);
max = state.eMarks[nextLine];
if (contentStart >= max) {
// trimming space in "- \n 3" case, indent is 1 here
indentAfterMarker = 1;
} else {
indentAfterMarker = contentStart - posAfterMarker;
}
// If we have more than 4 spaces, the indent is 1
// (the rest is just indented code block)
if (indentAfterMarker > 4) { indentAfterMarker = 1; }
// If indent is less than 1, assume that it's one, example:
// "-\n test"
if (indentAfterMarker < 1) { indentAfterMarker = 1; }
// " - test"
// ^^^^^ - calculating total length of this thing
indent = (posAfterMarker - state.bMarks[nextLine]) + indentAfterMarker;
// Run subparser & write tokens
state.tokens.push({
type: 'list_item_open',
lines: itemLines = [ startLine, 0 ],
level: state.level++
});
oldIndent = state.blkIndent;
oldTight = state.tight;
oldTShift = state.tShift[startLine];
oldParentType = state.parentType;
state.tShift[startLine] = contentStart - state.bMarks[startLine];
state.blkIndent = indent;
state.tight = true;
state.parentType = 'list';
state.parser.tokenize(state, startLine, endLine, true);
// If any of list item is tight, mark list as tight
if (!state.tight || prevEmptyEnd) {
tight = false;
}
// Item become loose if finish with empty line,
// but we should filter last element, because it means list finish
prevEmptyEnd = (state.line - startLine) > 1 && state.isEmpty(state.line - 1);
state.blkIndent = oldIndent;
state.tShift[startLine] = oldTShift;
state.tight = oldTight;
state.parentType = oldParentType;
state.tokens.push({
type: 'list_item_close',
level: --state.level
});
nextLine = startLine = state.line;
itemLines[1] = nextLine;
contentStart = state.bMarks[startLine];
if (nextLine >= endLine) { break; }
if (state.isEmpty(nextLine)) {
break;
}
//
// Try to check if list is terminated or continued.
//
if (state.tShift[nextLine] < state.blkIndent) { break; }
// fail if terminating block found
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
// fail if list has another type
if (isOrdered) {
posAfterMarker = skipOrderedListMarker(state, nextLine);
if (posAfterMarker < 0) { break; }
} else {
posAfterMarker = skipBulletListMarker(state, nextLine);
if (posAfterMarker < 0) { break; }
}
if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) { break; }
}
// Finilize list
state.tokens.push({
type: isOrdered ? 'ordered_list_close' : 'bullet_list_close',
level: --state.level
});
listLines[1] = nextLine;
state.line = nextLine;
// mark paragraphs tight if needed
if (tight) {
markTightParagraphs(state, listTokIdx);
}
return true;
}
// Process footnote reference list
function footnote(state, startLine, endLine, silent) {
var oldBMark, oldTShift, oldParentType, pos, label,
start = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// line should be at least 5 chars - "[^x]:"
if (start + 4 > max) { return false; }
if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
for (pos = start + 2; pos < max; pos++) {
if (state.src.charCodeAt(pos) === 0x20) { return false; }
if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
break;
}
}
if (pos === start + 2) { return false; } // no empty footnote labels
if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; }
if (silent) { return true; }
pos++;
if (!state.env.footnotes) { state.env.footnotes = {}; }
if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; }
label = state.src.slice(start + 2, pos - 2);
state.env.footnotes.refs[':' + label] = -1;
state.tokens.push({
type: 'footnote_reference_open',
label: label,
level: state.level++
});
oldBMark = state.bMarks[startLine];
oldTShift = state.tShift[startLine];
oldParentType = state.parentType;
state.tShift[startLine] = state.skipSpaces(pos) - pos;
state.bMarks[startLine] = pos;
state.blkIndent += 4;
state.parentType = 'footnote';
if (state.tShift[startLine] < state.blkIndent) {
state.tShift[startLine] += state.blkIndent;
state.bMarks[startLine] -= state.blkIndent;
}
state.parser.tokenize(state, startLine, endLine, true);
state.parentType = oldParentType;
state.blkIndent -= 4;
state.tShift[startLine] = oldTShift;
state.bMarks[startLine] = oldBMark;
state.tokens.push({
type: 'footnote_reference_close',
level: --state.level
});
return true;
}
// heading (#, ##, ...)
function heading(state, startLine, endLine, silent) {
var ch, level, tmp,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
if (pos >= max) { return false; }
ch = state.src.charCodeAt(pos);
if (ch !== 0x23/* # */ || pos >= max) { return false; }
// count heading level
level = 1;
ch = state.src.charCodeAt(++pos);
while (ch === 0x23/* # */ && pos < max && level <= 6) {
level++;
ch = state.src.charCodeAt(++pos);
}
if (level > 6 || (pos < max && ch !== 0x20/* space */)) { return false; }
if (silent) { return true; }
// Let's cut tails like ' ### ' from the end of string
max = state.skipCharsBack(max, 0x20, pos); // space
tmp = state.skipCharsBack(max, 0x23, pos); // #
if (tmp > pos && state.src.charCodeAt(tmp - 1) === 0x20/* space */) {
max = tmp;
}
state.line = startLine + 1;
state.tokens.push({ type: 'heading_open',
hLevel: level,
lines: [ startLine, state.line ],
level: state.level
});
// only if header is not empty
if (pos < max) {
state.tokens.push({
type: 'inline',
content: state.src.slice(pos, max).trim(),
level: state.level + 1,
lines: [ startLine, state.line ],
children: []
});
}
state.tokens.push({ type: 'heading_close', hLevel: level, level: state.level });
return true;
}
// lheading (---, ===)
function lheading(state, startLine, endLine/*, silent*/) {
var marker, pos, max,
next = startLine + 1;
if (next >= endLine) { return false; }
if (state.tShift[next] < state.blkIndent) { return false; }
// Scan next line
if (state.tShift[next] - state.blkIndent > 3) { return false; }
pos = state.bMarks[next] + state.tShift[next];
max = state.eMarks[next];
if (pos >= max) { return false; }
marker = state.src.charCodeAt(pos);
if (marker !== 0x2D/* - */ && marker !== 0x3D/* = */) { return false; }
pos = state.skipChars(pos, marker);
pos = state.skipSpaces(pos);
if (pos < max) { return false; }
pos = state.bMarks[startLine] + state.tShift[startLine];
state.line = next + 1;
state.tokens.push({
type: 'heading_open',
hLevel: marker === 0x3D/* = */ ? 1 : 2,
lines: [ startLine, state.line ],
level: state.level
});
state.tokens.push({
type: 'inline',
content: state.src.slice(pos, state.eMarks[startLine]).trim(),
level: state.level + 1,
lines: [ startLine, state.line - 1 ],
children: []
});
state.tokens.push({
type: 'heading_close',
hLevel: marker === 0x3D/* = */ ? 1 : 2,
level: state.level
});
return true;
}
// List of valid html blocks names, accorting to commonmark spec
// http://jgm.github.io/CommonMark/spec.html#html-blocks
var html_blocks = {};
[
'article',
'aside',
'button',
'blockquote',
'body',
'canvas',
'caption',
'col',
'colgroup',
'dd',
'div',
'dl',
'dt',
'embed',
'fieldset',
'figcaption',
'figure',
'footer',
'form',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'header',
'hgroup',
'hr',
'iframe',
'li',
'map',
'object',
'ol',
'output',
'p',
'pre',
'progress',
'script',
'section',
'style',
'table',
'tbody',
'td',
'textarea',
'tfoot',
'th',
'tr',
'thead',
'ul',
'video'
].forEach(function (name) { html_blocks[name] = true; });
// HTML block
var HTML_TAG_OPEN_RE = /^<([a-zA-Z]{1,15})[\s\/>]/;
var HTML_TAG_CLOSE_RE = /^<\/([a-zA-Z]{1,15})[\s>]/;
function isLetter$1(ch) {
/*eslint no-bitwise:0*/
var lc = ch | 0x20; // to lower case
return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */);
}
function htmlblock(state, startLine, endLine, silent) {
var ch, match, nextLine,
pos = state.bMarks[startLine],
max = state.eMarks[startLine],
shift = state.tShift[startLine];
pos += shift;
if (!state.options.html) { return false; }
if (shift > 3 || pos + 2 >= max) { return false; }
if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
ch = state.src.charCodeAt(pos + 1);
if (ch === 0x21/* ! */ || ch === 0x3F/* ? */) {
// Directive start / comment start / processing instruction start
if (silent) { return true; }
} else if (ch === 0x2F/* / */ || isLetter$1(ch)) {
// Probably start or end of tag
if (ch === 0x2F/* \ */) {
// closing tag
match = state.src.slice(pos, max).match(HTML_TAG_CLOSE_RE);
if (!match) { return false; }
} else {
// opening tag
match = state.src.slice(pos, max).match(HTML_TAG_OPEN_RE);
if (!match) { return false; }
}
// Make sure tag name is valid
if (html_blocks[match[1].toLowerCase()] !== true) { return false; }
if (silent) { return true; }
} else {
return false;
}
// If we are here - we detected HTML block.
// Let's roll down till empty line (block end).
nextLine = startLine + 1;
while (nextLine < state.lineMax && !state.isEmpty(nextLine)) {
nextLine++;
}
state.line = nextLine;
state.tokens.push({
type: 'htmlblock',
level: state.level,
lines: [ startLine, state.line ],
content: state.getLines(startLine, nextLine, 0, true)
});
return true;
}
// GFM table, non-standard
function getLine(state, line) {
var pos = state.bMarks[line] + state.blkIndent,
max = state.eMarks[line];
return state.src.substr(pos, max - pos);
}
function table(state, startLine, endLine, silent) {
var ch, lineText, pos, i, nextLine, rows, cell,
aligns, t, tableLines, tbodyLines;
// should have at least three lines
if (startLine + 2 > endLine) { return false; }
nextLine = startLine + 1;
if (state.tShift[nextLine] < state.blkIndent) { return false; }
// first character of the second line should be '|' or '-'
pos = state.bMarks[nextLine] + state.tShift[nextLine];
if (pos >= state.eMarks[nextLine]) { return false; }
ch = state.src.charCodeAt(pos);
if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; }
lineText = getLine(state, startLine + 1);
if (!/^[-:| ]+$/.test(lineText)) { return false; }
rows = lineText.split('|');
if (rows <= 2) { return false; }
aligns = [];
for (i = 0; i < rows.length; i++) {
t = rows[i].trim();
if (!t) {
// allow empty columns before and after table, but not in between columns;
// e.g. allow ` |---| `, disallow ` ---||--- `
if (i === 0 || i === rows.length - 1) {
continue;
} else {
return false;
}
}
if (!/^:?-+:?$/.test(t)) { return false; }
if (t.charCodeAt(t.length - 1) === 0x3A/* : */) {
aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right');
} else if (t.charCodeAt(0) === 0x3A/* : */) {
aligns.push('left');
} else {
aligns.push('');
}
}
lineText = getLine(state, startLine).trim();
if (lineText.indexOf('|') === -1) { return false; }
rows = lineText.replace(/^\||\|$/g, '').split('|');
if (aligns.length !== rows.length) { return false; }
if (silent) { return true; }
state.tokens.push({
type: 'table_open',
lines: tableLines = [ startLine, 0 ],
level: state.level++
});
state.tokens.push({
type: 'thead_open',
lines: [ startLine, startLine + 1 ],
level: state.level++
});
state.tokens.push({
type: 'tr_open',
lines: [ startLine, startLine + 1 ],
level: state.level++
});
for (i = 0; i < rows.length; i++) {
state.tokens.push({
type: 'th_open',
align: aligns[i],
lines: [ startLine, startLine + 1 ],
level: state.level++
});
state.tokens.push({
type: 'inline',
content: rows[i].trim(),
lines: [ startLine, startLine + 1 ],
level: state.level,
children: []
});
state.tokens.push({ type: 'th_close', level: --state.level });
}
state.tokens.push({ type: 'tr_close', level: --state.level });
state.tokens.push({ type: 'thead_close', level: --state.level });
state.tokens.push({
type: 'tbody_open',
lines: tbodyLines = [ startLine + 2, 0 ],
level: state.level++
});
for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
if (state.tShift[nextLine] < state.blkIndent) { break; }
lineText = getLine(state, nextLine).trim();
if (lineText.indexOf('|') === -1) { break; }
rows = lineText.replace(/^\||\|$/g, '').split('|');
state.tokens.push({ type: 'tr_open', level: state.level++ });
for (i = 0; i < rows.length; i++) {
state.tokens.push({ type: 'td_open', align: aligns[i], level: state.level++ });
// 0x7c === '|'
cell = rows[i].substring(
rows[i].charCodeAt(0) === 0x7c ? 1 : 0,
rows[i].charCodeAt(rows[i].length - 1) === 0x7c ? rows[i].length - 1 : rows[i].length
).trim();
state.tokens.push({
type: 'inline',
content: cell,
level: state.level,
children: []
});
state.tokens.push({ type: 'td_close', level: --state.level });
}
state.tokens.push({ type: 'tr_close', level: --state.level });
}
state.tokens.push({ type: 'tbody_close', level: --state.level });
state.tokens.push({ type: 'table_close', level: --state.level });
tableLines[1] = tbodyLines[1] = nextLine;
state.line = nextLine;
return true;
}
// Definition lists
// Search `[:~][\n ]`, returns next pos after marker on success
// or -1 on fail.
function skipMarker(state, line) {
var pos, marker,
start = state.bMarks[line] + state.tShift[line],
max = state.eMarks[line];
if (start >= max) { return -1; }
// Check bullet
marker = state.src.charCodeAt(start++);
if (marker !== 0x7E/* ~ */ && marker !== 0x3A/* : */) { return -1; }
pos = state.skipSpaces(start);
// require space after ":"
if (start === pos) { return -1; }
// no empty definitions, e.g. " : "
if (pos >= max) { return -1; }
return pos;
}
function markTightParagraphs$1(state, idx) {
var i, l,
level = state.level + 2;
for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
state.tokens[i + 2].tight = true;
state.tokens[i].tight = true;
i += 2;
}
}
}
function deflist(state, startLine, endLine, silent) {
var contentStart,
ddLine,
dtLine,
itemLines,
listLines,
listTokIdx,
nextLine,
oldIndent,
oldDDIndent,
oldParentType,
oldTShift,
oldTight,
prevEmptyEnd,
tight;
if (silent) {
// quirk: validation mode validates a dd block only, not a whole deflist
if (state.ddIndent < 0) { return false; }
return skipMarker(state, startLine) >= 0;
}
nextLine = startLine + 1;
if (state.isEmpty(nextLine)) {
if (++nextLine > endLine) { return false; }
}
if (state.tShift[nextLine] < state.blkIndent) { return false; }
contentStart = skipMarker(state, nextLine);
if (contentStart < 0) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
// Start list
listTokIdx = state.tokens.length;
state.tokens.push({
type: 'dl_open',
lines: listLines = [ startLine, 0 ],
level: state.level++
});
//
// Iterate list items
//
dtLine = startLine;
ddLine = nextLine;
// One definition list can contain multiple DTs,
// and one DT can be followed by multiple DDs.
//
// Thus, there is two loops here, and label is
// needed to break out of the second one
//
/*eslint no-labels:0,block-scoped-var:0*/
OUTER:
for (;;) {
tight = true;
prevEmptyEnd = false;
state.tokens.push({
type: 'dt_open',
lines: [ dtLine, dtLine ],
level: state.level++
});
state.tokens.push({
type: 'inline',
content: state.getLines(dtLine, dtLine + 1, state.blkIndent, false).trim(),
level: state.level + 1,
lines: [ dtLine, dtLine ],
children: []
});
state.tokens.push({
type: 'dt_close',
level: --state.level
});
for (;;) {
state.tokens.push({
type: 'dd_open',
lines: itemLines = [ nextLine, 0 ],
level: state.level++
});
oldTight = state.tight;
oldDDIndent = state.ddIndent;
oldIndent = state.blkIndent;
oldTShift = state.tShift[ddLine];
oldParentType = state.parentType;
state.blkIndent = state.ddIndent = state.tShift[ddLine] + 2;
state.tShift[ddLine] = contentStart - state.bMarks[ddLine];
state.tight = true;
state.parentType = 'deflist';
state.parser.tokenize(state, ddLine, endLine, true);
// If any of list item is tight, mark list as tight
if (!state.tight || prevEmptyEnd) {
tight = false;
}
// Item become loose if finish with empty line,
// but we should filter last element, because it means list finish
prevEmptyEnd = (state.line - ddLine) > 1 && state.isEmpty(state.line - 1);
state.tShift[ddLine] = oldTShift;
state.tight = oldTight;
state.parentType = oldParentType;
state.blkIndent = oldIndent;
state.ddIndent = oldDDIndent;
state.tokens.push({
type: 'dd_close',
level: --state.level
});
itemLines[1] = nextLine = state.line;
if (nextLine >= endLine) { break OUTER; }
if (state.tShift[nextLine] < state.blkIndent) { break OUTER; }
contentStart = skipMarker(state, nextLine);
if (contentStart < 0) { break; }
ddLine = nextLine;
// go to the next loop iteration:
// insert DD tag and repeat checking
}
if (nextLine >= endLine) { break; }
dtLine = nextLine;
if (state.isEmpty(dtLine)) { break; }
if (state.tShift[dtLine] < state.blkIndent) { break; }
ddLine = dtLine + 1;
if (ddLine >= endLine) { break; }
if (state.isEmpty(ddLine)) { ddLine++; }
if (ddLine >= endLine) { break; }
if (state.tShift[ddLine] < state.blkIndent) { break; }
contentStart = skipMarker(state, ddLine);
if (contentStart < 0) { break; }
// go to the next loop iteration:
// insert DT and DD tags and repeat checking
}
// Finilize list
state.tokens.push({
type: 'dl_close',
level: --state.level
});
listLines[1] = nextLine;
state.line = nextLine;
// mark paragraphs tight if needed
if (tight) {
markTightParagraphs$1(state, listTokIdx);
}
return true;
}
// Paragraph
function paragraph(state, startLine/*, endLine*/) {
var endLine, content, terminate, i, l,
nextLine = startLine + 1,
terminatorRules;
endLine = state.lineMax;
// jump line-by-line until empty one or EOF
if (nextLine < endLine && !state.isEmpty(nextLine)) {
terminatorRules = state.parser.ruler.getRules('paragraph');
for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
// this would be a code block normally, but after paragraph
// it's considered a lazy continuation regardless of what's there
if (state.tShift[nextLine] - state.blkIndent > 3) { continue; }
// Some tags can terminate paragraph without empty line.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
}
}
content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
state.line = nextLine;
if (content.length) {
state.tokens.push({
type: 'paragraph_open',
tight: false,
lines: [ startLine, state.line ],
level: state.level
});
state.tokens.push({
type: 'inline',
content: content,
level: state.level + 1,
lines: [ startLine, state.line ],
children: []
});
state.tokens.push({
type: 'paragraph_close',
tight: false,
level: state.level
});
}
return true;
}
/**
* Parser rules
*/
var _rules$1 = [
[ 'code', code ],
[ 'fences', fences, [ 'paragraph', 'blockquote', 'list' ] ],
[ 'blockquote', blockquote, [ 'paragraph', 'blockquote', 'list' ] ],
[ 'hr', hr, [ 'paragraph', 'blockquote', 'list' ] ],
[ 'list', list, [ 'paragraph', 'blockquote' ] ],
[ 'footnote', footnote, [ 'paragraph' ] ],
[ 'heading', heading, [ 'paragraph', 'blockquote' ] ],
[ 'lheading', lheading ],
[ 'htmlblock', htmlblock, [ 'paragraph', 'blockquote' ] ],
[ 'table', table, [ 'paragraph' ] ],
[ 'deflist', deflist, [ 'paragraph' ] ],
[ 'paragraph', paragraph ]
];
/**
* Block Parser class
*
* @api private
*/
function ParserBlock() {
this.ruler = new Ruler();
for (var i = 0; i < _rules$1.length; i++) {
this.ruler.push(_rules$1[i][0], _rules$1[i][1], {
alt: (_rules$1[i][2] || []).slice()
});
}
}
/**
* Generate tokens for the given input range.
*
* @param {Object} `state` Has properties like `src`, `parser`, `options` etc
* @param {Number} `startLine`
* @param {Number} `endLine`
* @api private
*/
ParserBlock.prototype.tokenize = function (state, startLine, endLine) {
var rules = this.ruler.getRules('');
var len = rules.length;
var line = startLine;
var hasEmptyLines = false;
var ok, i;
while (line < endLine) {
state.line = line = state.skipEmptyLines(line);
if (line >= endLine) {
break;
}
// Termination condition for nested calls.
// Nested calls currently used for blockquotes & lists
if (state.tShift[line] < state.blkIndent) {
break;
}
// Try all possible rules.
// On success, rule should:
//
// - update `state.line`
// - update `state.tokens`
// - return true
for (i = 0; i < len; i++) {
ok = rules[i](state, line, endLine, false);
if (ok) {
break;
}
}
// set state.tight iff we had an empty line before current tag
// i.e. latest empty line should not count
state.tight = !hasEmptyLines;
// paragraph might "eat" one newline after it in nested lists
if (state.isEmpty(state.line - 1)) {
hasEmptyLines = true;
}
line = state.line;
if (line < endLine && state.isEmpty(line)) {
hasEmptyLines = true;
line++;
// two empty lines should stop the parser in list mode
if (line < endLine && state.parentType === 'list' && state.isEmpty(line)) { break; }
state.line = line;
}
}
};
var TABS_SCAN_RE = /[\n\t]/g;
var NEWLINES_RE = /\r[\n\u0085]|[\u2424\u2028\u0085]/g;
var SPACES_RE = /\u00a0/g;
/**
* Tokenize the given `str`.
*
* @param {String} `str` Source string
* @param {Object} `options`
* @param {Object} `env`
* @param {Array} `outTokens`
* @api private
*/
ParserBlock.prototype.parse = function (str, options, env, outTokens) {
var state, lineStart = 0, lastTabPos = 0;
if (!str) { return []; }
// Normalize spaces
str = str.replace(SPACES_RE, ' ');
// Normalize newlines
str = str.replace(NEWLINES_RE, '\n');
// Replace tabs with proper number of spaces (1..4)
if (str.indexOf('\t') >= 0) {
str = str.replace(TABS_SCAN_RE, function (match, offset) {
var result;
if (str.charCodeAt(offset) === 0x0A) {
lineStart = offset + 1;
lastTabPos = 0;
return match;
}
result = ' '.slice((offset - lineStart - lastTabPos) % 4);
lastTabPos = offset - lineStart + 1;
return result;
});
}
state = new StateBlock(str, this, options, env, outTokens);
this.tokenize(state, state.line, state.lineMax);
};
// Skip text characters for text token, place those to pending buffer
// and increment current pos
// Rule to skip pure text
// '{}$%@~+=:' reserved for extentions
function isTerminatorChar(ch) {
switch (ch) {
case 0x0A/* \n */:
case 0x5C/* \ */:
case 0x60/* ` */:
case 0x2A/* * */:
case 0x5F/* _ */:
case 0x5E/* ^ */:
case 0x5B/* [ */:
case 0x5D/* ] */:
case 0x21/* ! */:
case 0x26/* & */:
case 0x3C/* < */:
case 0x3E/* > */:
case 0x7B/* { */:
case 0x7D/* } */:
case 0x24/* $ */:
case 0x25/* % */:
case 0x40/* @ */:
case 0x7E/* ~ */:
case 0x2B/* + */:
case 0x3D/* = */:
case 0x3A/* : */:
return true;
default:
return false;
}
}
function text(state, silent) {
var pos = state.pos;
while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
pos++;
}
if (pos === state.pos) { return false; }
if (!silent) { state.pending += state.src.slice(state.pos, pos); }
state.pos = pos;
return true;
}
// Proceess '\n'
function newline(state, silent) {
var pmax, max, pos = state.pos;
if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; }
pmax = state.pending.length - 1;
max = state.posMax;
// ' \n' -> hardbreak
// Lookup in pending chars is bad practice! Don't copy to other rules!
// Pending string is stored in concat mode, indexed lookups will cause
// convertion to flat mode.
if (!silent) {
if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
// Strip out all trailing spaces on this line.
for (var i = pmax - 2; i >= 0; i--) {
if (state.pending.charCodeAt(i) !== 0x20) {
state.pending = state.pending.substring(0, i + 1);
break;
}
}
state.push({
type: 'hardbreak',
level: state.level
});
} else {
state.pending = state.pending.slice(0, -1);
state.push({
type: 'softbreak',
level: state.level
});
}
} else {
state.push({
type: 'softbreak',
level: state.level
});
}
}
pos++;
// skip heading spaces for next line
while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; }
state.pos = pos;
return true;
}
// Proceess escaped chars and hardbreaks
var ESCAPED = [];
for (var i = 0; i < 256; i++) { ESCAPED.push(0); }
'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'
.split('').forEach(function(ch) { ESCAPED[ch.charCodeAt(0)] = 1; });
function escape(state, silent) {
var ch, pos = state.pos, max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; }
pos++;
if (pos < max) {
ch = state.src.charCodeAt(pos);
if (ch < 256 && ESCAPED[ch] !== 0) {
if (!silent) { state.pending += state.src[pos]; }
state.pos += 2;
return true;
}
if (ch === 0x0A) {
if (!silent) {
state.push({
type: 'hardbreak',
level: state.level
});
}
pos++;
// skip leading whitespaces from next line
while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; }
state.pos = pos;
return true;
}
}
if (!silent) { state.pending += '\\'; }
state.pos++;
return true;
}
// Parse backticks
function backticks(state, silent) {
var start, max, marker, matchStart, matchEnd,
pos = state.pos,
ch = state.src.charCodeAt(pos);
if (ch !== 0x60/* ` */) { return false; }
start = pos;
pos++;
max = state.posMax;
while (pos < max && state.src.charCodeAt(pos) === 0x60/* ` */) { pos++; }
marker = state.src.slice(start, pos);
matchStart = matchEnd = pos;
while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) {
matchEnd = matchStart + 1;
while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60/* ` */) { matchEnd++; }
if (matchEnd - matchStart === marker.length) {
if (!silent) {
state.push({
type: 'code',
content: state.src.slice(pos, matchStart)
.replace(/[ \n]+/g, ' ')
.trim(),
block: false,
level: state.level
});
}
state.pos = matchEnd;
return true;
}
}
if (!silent) { state.pending += marker; }
state.pos += marker.length;
return true;
}
// Process ~~deleted text~~
function del(state, silent) {
var found,
pos,
stack,
max = state.posMax,
start = state.pos,
lastChar,
nextChar;
if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
if (start + 4 >= max) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x7E/* ~ */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1;
nextChar = state.src.charCodeAt(start + 2);
if (lastChar === 0x7E/* ~ */) { return false; }
if (nextChar === 0x7E/* ~ */) { return false; }
if (nextChar === 0x20 || nextChar === 0x0A) { return false; }
pos = start + 2;
while (pos < max && state.src.charCodeAt(pos) === 0x7E/* ~ */) { pos++; }
if (pos > start + 3) {
// sequence of 4+ markers taking as literal, same as in a emphasis
state.pos += pos - start;
if (!silent) { state.pending += state.src.slice(start, pos); }
return true;
}
state.pos = start + 2;
stack = 1;
while (state.pos + 1 < max) {
if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) {
if (state.src.charCodeAt(state.pos + 1) === 0x7E/* ~ */) {
lastChar = state.src.charCodeAt(state.pos - 1);
nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1;
if (nextChar !== 0x7E/* ~ */ && lastChar !== 0x7E/* ~ */) {
if (lastChar !== 0x20 && lastChar !== 0x0A) {
// closing '~~'
stack--;
} else if (nextChar !== 0x20 && nextChar !== 0x0A) {
// opening '~~'
stack++;
} // else {
// // standalone ' ~~ ' indented with spaces
// }
if (stack <= 0) {
found = true;
break;
}
}
}
}
state.parser.skipToken(state);
}
if (!found) {
// parser failed to find ending tag, so it's not valid emphasis
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + 2;
if (!silent) {
state.push({ type: 'del_open', level: state.level++ });
state.parser.tokenize(state);
state.push({ type: 'del_close', level: --state.level });
}
state.pos = state.posMax + 2;
state.posMax = max;
return true;
}
// Process ++inserted text++
function ins(state, silent) {
var found,
pos,
stack,
max = state.posMax,
start = state.pos,
lastChar,
nextChar;
if (state.src.charCodeAt(start) !== 0x2B/* + */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
if (start + 4 >= max) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x2B/* + */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1;
nextChar = state.src.charCodeAt(start + 2);
if (lastChar === 0x2B/* + */) { return false; }
if (nextChar === 0x2B/* + */) { return false; }
if (nextChar === 0x20 || nextChar === 0x0A) { return false; }
pos = start + 2;
while (pos < max && state.src.charCodeAt(pos) === 0x2B/* + */) { pos++; }
if (pos !== start + 2) {
// sequence of 3+ markers taking as literal, same as in a emphasis
state.pos += pos - start;
if (!silent) { state.pending += state.src.slice(start, pos); }
return true;
}
state.pos = start + 2;
stack = 1;
while (state.pos + 1 < max) {
if (state.src.charCodeAt(state.pos) === 0x2B/* + */) {
if (state.src.charCodeAt(state.pos + 1) === 0x2B/* + */) {
lastChar = state.src.charCodeAt(state.pos - 1);
nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1;
if (nextChar !== 0x2B/* + */ && lastChar !== 0x2B/* + */) {
if (lastChar !== 0x20 && lastChar !== 0x0A) {
// closing '++'
stack--;
} else if (nextChar !== 0x20 && nextChar !== 0x0A) {
// opening '++'
stack++;
} // else {
// // standalone ' ++ ' indented with spaces
// }
if (stack <= 0) {
found = true;
break;
}
}
}
}
state.parser.skipToken(state);
}
if (!found) {
// parser failed to find ending tag, so it's not valid emphasis
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + 2;
if (!silent) {
state.push({ type: 'ins_open', level: state.level++ });
state.parser.tokenize(state);
state.push({ type: 'ins_close', level: --state.level });
}
state.pos = state.posMax + 2;
state.posMax = max;
return true;
}
// Process ==highlighted text==
function mark(state, silent) {
var found,
pos,
stack,
max = state.posMax,
start = state.pos,
lastChar,
nextChar;
if (state.src.charCodeAt(start) !== 0x3D/* = */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
if (start + 4 >= max) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x3D/* = */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1;
nextChar = state.src.charCodeAt(start + 2);
if (lastChar === 0x3D/* = */) { return false; }
if (nextChar === 0x3D/* = */) { return false; }
if (nextChar === 0x20 || nextChar === 0x0A) { return false; }
pos = start + 2;
while (pos < max && state.src.charCodeAt(pos) === 0x3D/* = */) { pos++; }
if (pos !== start + 2) {
// sequence of 3+ markers taking as literal, same as in a emphasis
state.pos += pos - start;
if (!silent) { state.pending += state.src.slice(start, pos); }
return true;
}
state.pos = start + 2;
stack = 1;
while (state.pos + 1 < max) {
if (state.src.charCodeAt(state.pos) === 0x3D/* = */) {
if (state.src.charCodeAt(state.pos + 1) === 0x3D/* = */) {
lastChar = state.src.charCodeAt(state.pos - 1);
nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1;
if (nextChar !== 0x3D/* = */ && lastChar !== 0x3D/* = */) {
if (lastChar !== 0x20 && lastChar !== 0x0A) {
// closing '=='
stack--;
} else if (nextChar !== 0x20 && nextChar !== 0x0A) {
// opening '=='
stack++;
} // else {
// // standalone ' == ' indented with spaces
// }
if (stack <= 0) {
found = true;
break;
}
}
}
}
state.parser.skipToken(state);
}
if (!found) {
// parser failed to find ending tag, so it's not valid emphasis
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + 2;
if (!silent) {
state.push({ type: 'mark_open', level: state.level++ });
state.parser.tokenize(state);
state.push({ type: 'mark_close', level: --state.level });
}
state.pos = state.posMax + 2;
state.posMax = max;
return true;
}
// Process *this* and _that_
function isAlphaNum(code) {
return (code >= 0x30 /* 0 */ && code <= 0x39 /* 9 */) ||
(code >= 0x41 /* A */ && code <= 0x5A /* Z */) ||
(code >= 0x61 /* a */ && code <= 0x7A /* z */);
}
// parse sequence of emphasis markers,
// "start" should point at a valid marker
function scanDelims(state, start) {
var pos = start, lastChar, nextChar, count,
can_open = true,
can_close = true,
max = state.posMax,
marker = state.src.charCodeAt(start);
lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1;
while (pos < max && state.src.charCodeAt(pos) === marker) { pos++; }
if (pos >= max) { can_open = false; }
count = pos - start;
if (count >= 4) {
// sequence of four or more unescaped markers can't start/end an emphasis
can_open = can_close = false;
} else {
nextChar = pos < max ? state.src.charCodeAt(pos) : -1;
// check whitespace conditions
if (nextChar === 0x20 || nextChar === 0x0A) { can_open = false; }
if (lastChar === 0x20 || lastChar === 0x0A) { can_close = false; }
if (marker === 0x5F /* _ */) {
// check if we aren't inside the word
if (isAlphaNum(lastChar)) { can_open = false; }
if (isAlphaNum(nextChar)) { can_close = false; }
}
}
return {
can_open: can_open,
can_close: can_close,
delims: count
};
}
function emphasis(state, silent) {
var startCount,
count,
found,
oldCount,
newCount,
stack,
res,
max = state.posMax,
start = state.pos,
marker = state.src.charCodeAt(start);
if (marker !== 0x5F/* _ */ && marker !== 0x2A /* * */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
res = scanDelims(state, start);
startCount = res.delims;
if (!res.can_open) {
state.pos += startCount;
if (!silent) { state.pending += state.src.slice(start, state.pos); }
return true;
}
if (state.level >= state.options.maxNesting) { return false; }
state.pos = start + startCount;
stack = [ startCount ];
while (state.pos < max) {
if (state.src.charCodeAt(state.pos) === marker) {
res = scanDelims(state, state.pos);
count = res.delims;
if (res.can_close) {
oldCount = stack.pop();
newCount = count;
while (oldCount !== newCount) {
if (newCount < oldCount) {
stack.push(oldCount - newCount);
break;
}
// assert(newCount > oldCount)
newCount -= oldCount;
if (stack.length === 0) { break; }
state.pos += oldCount;
oldCount = stack.pop();
}
if (stack.length === 0) {
startCount = oldCount;
found = true;
break;
}
state.pos += count;
continue;
}
if (res.can_open) { stack.push(count); }
state.pos += count;
continue;
}
state.parser.skipToken(state);
}
if (!found) {
// parser failed to find ending tag, so it's not valid emphasis
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + startCount;
if (!silent) {
if (startCount === 2 || startCount === 3) {
state.push({ type: 'strong_open', level: state.level++ });
}
if (startCount === 1 || startCount === 3) {
state.push({ type: 'em_open', level: state.level++ });
}
state.parser.tokenize(state);
if (startCount === 1 || startCount === 3) {
state.push({ type: 'em_close', level: --state.level });
}
if (startCount === 2 || startCount === 3) {
state.push({ type: 'strong_close', level: --state.level });
}
}
state.pos = state.posMax + startCount;
state.posMax = max;
return true;
}
// Process ~subscript~
// same as UNESCAPE_MD_RE plus a space
var UNESCAPE_RE = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g;
function sub(state, silent) {
var found,
content,
max = state.posMax,
start = state.pos;
if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
if (start + 2 >= max) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
state.pos = start + 1;
while (state.pos < max) {
if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) {
found = true;
break;
}
state.parser.skipToken(state);
}
if (!found || start + 1 === state.pos) {
state.pos = start;
return false;
}
content = state.src.slice(start + 1, state.pos);
// don't allow unescaped spaces/newlines inside
if (content.match(/(^|[^\\])(\\\\)*\s/)) {
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + 1;
if (!silent) {
state.push({
type: 'sub',
level: state.level,
content: content.replace(UNESCAPE_RE, '$1')
});
}
state.pos = state.posMax + 1;
state.posMax = max;
return true;
}
// Process ^superscript^
// same as UNESCAPE_MD_RE plus a space
var UNESCAPE_RE$1 = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g;
function sup(state, silent) {
var found,
content,
max = state.posMax,
start = state.pos;
if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; }
if (silent) { return false; } // don't run any pairs in validation mode
if (start + 2 >= max) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
state.pos = start + 1;
while (state.pos < max) {
if (state.src.charCodeAt(state.pos) === 0x5E/* ^ */) {
found = true;
break;
}
state.parser.skipToken(state);
}
if (!found || start + 1 === state.pos) {
state.pos = start;
return false;
}
content = state.src.slice(start + 1, state.pos);
// don't allow unescaped spaces/newlines inside
if (content.match(/(^|[^\\])(\\\\)*\s/)) {
state.pos = start;
return false;
}
// found!
state.posMax = state.pos;
state.pos = start + 1;
if (!silent) {
state.push({
type: 'sup',
level: state.level,
content: content.replace(UNESCAPE_RE$1, '$1')
});
}
state.pos = state.posMax + 1;
state.posMax = max;
return true;
}
// Process [links]( "stuff")
function links(state, silent) {
var labelStart,
labelEnd,
label,
href,
title,
pos,
ref,
code,
isImage = false,
oldPos = state.pos,
max = state.posMax,
start = state.pos,
marker = state.src.charCodeAt(start);
if (marker === 0x21/* ! */) {
isImage = true;
marker = state.src.charCodeAt(++start);
}
if (marker !== 0x5B/* [ */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
labelStart = start + 1;
labelEnd = parseLinkLabel(state, start);
// parser failed to find ']', so it's not a valid link
if (labelEnd < 0) { return false; }
pos = labelEnd + 1;
if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) {
//
// Inline link
//
// [link]( "title" )
// ^^ skipping these spaces
pos++;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
if (pos >= max) { return false; }
// [link]( "title" )
// ^^^^^^ parsing link destination
start = pos;
if (parseLinkDestination(state, pos)) {
href = state.linkContent;
pos = state.pos;
} else {
href = '';
}
// [link]( "title" )
// ^^ skipping these spaces
start = pos;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
// [link]( "title" )
// ^^^^^^^ parsing link title
if (pos < max && start !== pos && parseLinkTitle(state, pos)) {
title = state.linkContent;
pos = state.pos;
// [link]( "title" )
// ^^ skipping these spaces
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
} else {
title = '';
}
if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) {
state.pos = oldPos;
return false;
}
pos++;
} else {
//
// Link reference
//
// do not allow nested reference links
if (state.linkLevel > 0) { return false; }
// [foo] [bar]
// ^^ optional whitespace (can include newlines)
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (code !== 0x20 && code !== 0x0A) { break; }
}
if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) {
start = pos + 1;
pos = parseLinkLabel(state, pos);
if (pos >= 0) {
label = state.src.slice(start, pos++);
} else {
pos = start - 1;
}
}
// covers label === '' and label === undefined
// (collapsed reference link and shortcut reference link respectively)
if (!label) {
if (typeof label === 'undefined') {
pos = labelEnd + 1;
}
label = state.src.slice(labelStart, labelEnd);
}
ref = state.env.references[normalizeReference(label)];
if (!ref) {
state.pos = oldPos;
return false;
}
href = ref.href;
title = ref.title;
}
//
// We found the end of the link, and know for a fact it's a valid link;
// so all that's left to do is to call tokenizer.
//
if (!silent) {
state.pos = labelStart;
state.posMax = labelEnd;
if (isImage) {
state.push({
type: 'image',
src: href,
title: title,
alt: state.src.substr(labelStart, labelEnd - labelStart),
level: state.level
});
} else {
state.push({
type: 'link_open',
href: href,
title: title,
level: state.level++
});
state.linkLevel++;
state.parser.tokenize(state);
state.linkLevel--;
state.push({ type: 'link_close', level: --state.level });
}
}
state.pos = pos;
state.posMax = max;
return true;
}
// Process inline footnotes (^[...])
function footnote_inline(state, silent) {
var labelStart,
labelEnd,
footnoteId,
oldLength,
max = state.posMax,
start = state.pos;
if (start + 2 >= max) { return false; }
if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
labelStart = start + 2;
labelEnd = parseLinkLabel(state, start + 1);
// parser failed to find ']', so it's not a valid note
if (labelEnd < 0) { return false; }
// We found the end of the link, and know for a fact it's a valid link;
// so all that's left to do is to call tokenizer.
//
if (!silent) {
if (!state.env.footnotes) { state.env.footnotes = {}; }
if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
footnoteId = state.env.footnotes.list.length;
state.pos = labelStart;
state.posMax = labelEnd;
state.push({
type: 'footnote_ref',
id: footnoteId,
level: state.level
});
state.linkLevel++;
oldLength = state.tokens.length;
state.parser.tokenize(state);
state.env.footnotes.list[footnoteId] = { tokens: state.tokens.splice(oldLength) };
state.linkLevel--;
}
state.pos = labelEnd + 1;
state.posMax = max;
return true;
}
// Process footnote references ([^...])
function footnote_ref(state, silent) {
var label,
pos,
footnoteId,
footnoteSubId,
max = state.posMax,
start = state.pos;
// should be at least 4 chars - "[^x]"
if (start + 3 > max) { return false; }
if (!state.env.footnotes || !state.env.footnotes.refs) { return false; }
if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
if (state.level >= state.options.maxNesting) { return false; }
for (pos = start + 2; pos < max; pos++) {
if (state.src.charCodeAt(pos) === 0x20) { return false; }
if (state.src.charCodeAt(pos) === 0x0A) { return false; }
if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
break;
}
}
if (pos === start + 2) { return false; } // no empty footnote labels
if (pos >= max) { return false; }
pos++;
label = state.src.slice(start + 2, pos - 1);
if (typeof state.env.footnotes.refs[':' + label] === 'undefined') { return false; }
if (!silent) {
if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
if (state.env.footnotes.refs[':' + label] < 0) {
footnoteId = state.env.footnotes.list.length;
state.env.footnotes.list[footnoteId] = { label: label, count: 0 };
state.env.footnotes.refs[':' + label] = footnoteId;
} else {
footnoteId = state.env.footnotes.refs[':' + label];
}
footnoteSubId = state.env.footnotes.list[footnoteId].count;
state.env.footnotes.list[footnoteId].count++;
state.push({
type: 'footnote_ref',
id: footnoteId,
subId: footnoteSubId,
level: state.level
});
}
state.pos = pos;
state.posMax = max;
return true;
}
// List of valid url schemas, accorting to commonmark spec
// http://jgm.github.io/CommonMark/spec.html#autolinks
var url_schemas = [
'coap',
'doi',
'javascript',
'aaa',
'aaas',
'about',
'acap',
'cap',
'cid',
'crid',
'data',
'dav',
'dict',
'dns',
'file',
'ftp',
'geo',
'go',
'gopher',
'h323',
'http',
'https',
'iax',
'icap',
'im',
'imap',
'info',
'ipp',
'iris',
'iris.beep',
'iris.xpc',
'iris.xpcs',
'iris.lwz',
'ldap',
'mailto',
'mid',
'msrp',
'msrps',
'mtqp',
'mupdate',
'news',
'nfs',
'ni',
'nih',
'nntp',
'opaquelocktoken',
'pop',
'pres',
'rtsp',
'service',
'session',
'shttp',
'sieve',
'sip',
'sips',
'sms',
'snmp',
'soap.beep',
'soap.beeps',
'tag',
'tel',
'telnet',
'tftp',
'thismessage',
'tn3270',
'tip',
'tv',
'urn',
'vemmi',
'ws',
'wss',
'xcon',
'xcon-userid',
'xmlrpc.beep',
'xmlrpc.beeps',
'xmpp',
'z39.50r',
'z39.50s',
'adiumxtra',
'afp',
'afs',
'aim',
'apt',
'attachment',
'aw',
'beshare',
'bitcoin',
'bolo',
'callto',
'chrome',
'chrome-extension',
'com-eventbrite-attendee',
'content',
'cvs',
'dlna-playsingle',
'dlna-playcontainer',
'dtn',
'dvb',
'ed2k',
'facetime',
'feed',
'finger',
'fish',
'gg',
'git',
'gizmoproject',
'gtalk',
'hcp',
'icon',
'ipn',
'irc',
'irc6',
'ircs',
'itms',
'jar',
'jms',
'keyparc',
'lastfm',
'ldaps',
'magnet',
'maps',
'market',
'message',
'mms',
'ms-help',
'msnim',
'mumble',
'mvn',
'notes',
'oid',
'palm',
'paparazzi',
'platform',
'proxy',
'psyc',
'query',
'res',
'resource',
'rmi',
'rsync',
'rtmp',
'secondlife',
'sftp',
'sgn',
'skype',
'smb',
'soldat',
'spotify',
'ssh',
'steam',
'svn',
'teamspeak',
'things',
'udp',
'unreal',
'ut2004',
'ventrilo',
'view-source',
'webcal',
'wtai',
'wyciwyg',
'xfire',
'xri',
'ymsgr'
];
// Process autolinks ''
/*eslint max-len:0*/
var EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;
var AUTOLINK_RE = /^<([a-zA-Z.\-]{1,25}):([^<>\x00-\x20]*)>/;
function autolink(state, silent) {
var tail, linkMatch, emailMatch, url, fullUrl, pos = state.pos;
if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
tail = state.src.slice(pos);
if (tail.indexOf('>') < 0) { return false; }
linkMatch = tail.match(AUTOLINK_RE);
if (linkMatch) {
if (url_schemas.indexOf(linkMatch[1].toLowerCase()) < 0) { return false; }
url = linkMatch[0].slice(1, -1);
fullUrl = normalizeLink(url);
if (!state.parser.validateLink(url)) { return false; }
if (!silent) {
state.push({
type: 'link_open',
href: fullUrl,
level: state.level
});
state.push({
type: 'text',
content: url,
level: state.level + 1
});
state.push({ type: 'link_close', level: state.level });
}
state.pos += linkMatch[0].length;
return true;
}
emailMatch = tail.match(EMAIL_RE);
if (emailMatch) {
url = emailMatch[0].slice(1, -1);
fullUrl = normalizeLink('mailto:' + url);
if (!state.parser.validateLink(fullUrl)) { return false; }
if (!silent) {
state.push({
type: 'link_open',
href: fullUrl,
level: state.level
});
state.push({
type: 'text',
content: url,
level: state.level + 1
});
state.push({ type: 'link_close', level: state.level });
}
state.pos += emailMatch[0].length;
return true;
}
return false;
}
// Regexps to match html elements
function replace$1(regex, options) {
regex = regex.source;
options = options || '';
return function self(name, val) {
if (!name) {
return new RegExp(regex, options);
}
val = val.source || val;
regex = regex.replace(name, val);
return self;
};
}
var attr_name = /[a-zA-Z_:][a-zA-Z0-9:._-]*/;
var unquoted = /[^"'=<>`\x00-\x20]+/;
var single_quoted = /'[^']*'/;
var double_quoted = /"[^"]*"/;
/*eslint no-spaced-func:0*/
var attr_value = replace$1(/(?:unquoted|single_quoted|double_quoted)/)
('unquoted', unquoted)
('single_quoted', single_quoted)
('double_quoted', double_quoted)
();
var attribute = replace$1(/(?:\s+attr_name(?:\s*=\s*attr_value)?)/)
('attr_name', attr_name)
('attr_value', attr_value)
();
var open_tag = replace$1(/<[A-Za-z][A-Za-z0-9]*attribute*\s*\/?>/)
('attribute', attribute)
();
var close_tag = /<\/[A-Za-z][A-Za-z0-9]*\s*>/;
var comment = /|/;
var processing = /<[?].*?[?]>/;
var declaration = /]*>/;
var cdata = //;
var HTML_TAG_RE = replace$1(/^(?:open_tag|close_tag|comment|processing|declaration|cdata)/)
('open_tag', open_tag)
('close_tag', close_tag)
('comment', comment)
('processing', processing)
('declaration', declaration)
('cdata', cdata)
();
// Process html tags
function isLetter$2(ch) {
/*eslint no-bitwise:0*/
var lc = ch | 0x20; // to lower case
return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */);
}
function htmltag(state, silent) {
var ch, match, max, pos = state.pos;
if (!state.options.html) { return false; }
// Check start
max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x3C/* < */ ||
pos + 2 >= max) {
return false;
}
// Quick fail on second char
ch = state.src.charCodeAt(pos + 1);
if (ch !== 0x21/* ! */ &&
ch !== 0x3F/* ? */ &&
ch !== 0x2F/* / */ &&
!isLetter$2(ch)) {
return false;
}
match = state.src.slice(pos).match(HTML_TAG_RE);
if (!match) { return false; }
if (!silent) {
state.push({
type: 'htmltag',
content: state.src.slice(pos, pos + match[0].length),
level: state.level
});
}
state.pos += match[0].length;
return true;
}
// Process html entity - {, ¯, ", ...
var DIGITAL_RE = /^&#((?:x[a-f0-9]{1,8}|[0-9]{1,8}));/i;
var NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i;
function entity(state, silent) {
var ch, code, match, pos = state.pos, max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x26/* & */) { return false; }
if (pos + 1 < max) {
ch = state.src.charCodeAt(pos + 1);
if (ch === 0x23 /* # */) {
match = state.src.slice(pos).match(DIGITAL_RE);
if (match) {
if (!silent) {
code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
state.pending += isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD);
}
state.pos += match[0].length;
return true;
}
} else {
match = state.src.slice(pos).match(NAMED_RE);
if (match) {
var decoded = decodeEntity(match[1]);
if (match[1] !== decoded) {
if (!silent) { state.pending += decoded; }
state.pos += match[0].length;
return true;
}
}
}
}
if (!silent) { state.pending += '&'; }
state.pos++;
return true;
}
/**
* Inline Parser `rules`
*/
var _rules$2 = [
[ 'text', text ],
[ 'newline', newline ],
[ 'escape', escape ],
[ 'backticks', backticks ],
[ 'del', del ],
[ 'ins', ins ],
[ 'mark', mark ],
[ 'emphasis', emphasis ],
[ 'sub', sub ],
[ 'sup', sup ],
[ 'links', links ],
[ 'footnote_inline', footnote_inline ],
[ 'footnote_ref', footnote_ref ],
[ 'autolink', autolink ],
[ 'htmltag', htmltag ],
[ 'entity', entity ]
];
/**
* Inline Parser class. Note that link validation is stricter
* in Remarkable than what is specified by CommonMark. If you
* want to change this you can use a custom validator.
*
* @api private
*/
function ParserInline() {
this.ruler = new Ruler();
for (var i = 0; i < _rules$2.length; i++) {
this.ruler.push(_rules$2[i][0], _rules$2[i][1]);
}
// Can be overridden with a custom validator
this.validateLink = validateLink;
}
/**
* Skip a single token by running all rules in validation mode.
* Returns `true` if any rule reports success.
*
* @param {Object} `state`
* @api privage
*/
ParserInline.prototype.skipToken = function (state) {
var rules = this.ruler.getRules('');
var len = rules.length;
var pos = state.pos;
var i, cached_pos;
if ((cached_pos = state.cacheGet(pos)) > 0) {
state.pos = cached_pos;
return;
}
for (i = 0; i < len; i++) {
if (rules[i](state, true)) {
state.cacheSet(pos, state.pos);
return;
}
}
state.pos++;
state.cacheSet(pos, state.pos);
};
/**
* Generate tokens for the given input range.
*
* @param {Object} `state`
* @api private
*/
ParserInline.prototype.tokenize = function (state) {
var rules = this.ruler.getRules('');
var len = rules.length;
var end = state.posMax;
var ok, i;
while (state.pos < end) {
// Try all possible rules.
// On success, the rule should:
//
// - update `state.pos`
// - update `state.tokens`
// - return true
for (i = 0; i < len; i++) {
ok = rules[i](state, false);
if (ok) {
break;
}
}
if (ok) {
if (state.pos >= end) { break; }
continue;
}
state.pending += state.src[state.pos++];
}
if (state.pending) {
state.pushPending();
}
};
/**
* Parse the given input string.
*
* @param {String} `str`
* @param {Object} `options`
* @param {Object} `env`
* @param {Array} `outTokens`
* @api private
*/
ParserInline.prototype.parse = function (str, options, env, outTokens) {
var state = new StateInline(str, this, options, env, outTokens);
this.tokenize(state);
};
/**
* Validate the given `url` by checking for bad protocols.
*
* @param {String} `url`
* @return {Boolean}
*/
function validateLink(url) {
var BAD_PROTOCOLS = [ 'vbscript', 'javascript', 'file', 'data' ];
var str = url.trim().toLowerCase();
// Care about digital entities "javascript:alert(1)"
str = replaceEntities(str);
if (str.indexOf(':') !== -1 && BAD_PROTOCOLS.indexOf(str.split(':')[0]) !== -1) {
return false;
}
return true;
}
// Remarkable default options
var defaultConfig = {
options: {
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (
)
breaks: false, // Convert '\n' in paragraphs into
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkTarget: '', // set target to open link in
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Set doubles to '«»' for Russian, '„“' for German.
quotes: '“”‘’',
// Highlighter function. Should return escaped HTML,
// or '' if input not changed
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 20 // Internal protection, recursion limit
},
components: {
core: {
rules: [
'block',
'inline',
'references',
'replacements',
'smartquotes',
'references',
'abbr2',
'footnote_tail'
]
},
block: {
rules: [
'blockquote',
'code',
'fences',
'footnote',
'heading',
'hr',
'htmlblock',
'lheading',
'list',
'paragraph',
'table'
]
},
inline: {
rules: [
'autolink',
'backticks',
'del',
'emphasis',
'entity',
'escape',
'footnote_ref',
'htmltag',
'links',
'newline',
'text'
]
}
}
};
// Remarkable default options
var fullConfig = {
options: {
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (
)
breaks: false, // Convert '\n' in paragraphs into
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkTarget: '', // set target to open link in
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Set doubles to '«»' for Russian, '„“' for German.
quotes: '“”‘’',
// Highlighter function. Should return escaped HTML,
// or '' if input not changed
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 20 // Internal protection, recursion limit
},
components: {
// Don't restrict core/block/inline rules
core: {},
block: {},
inline: {}
}
};
// Commonmark default options
var commonmarkConfig = {
options: {
html: true, // Enable HTML tags in source
xhtmlOut: true, // Use '/' to close single tags (
)
breaks: false, // Convert '\n' in paragraphs into
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkTarget: '', // set target to open link in
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Set doubles to '«»' for Russian, '„“' for German.
quotes: '“”‘’',
// Highlighter function. Should return escaped HTML,
// or '' if input not changed
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 20 // Internal protection, recursion limit
},
components: {
core: {
rules: [
'block',
'inline',
'references',
'abbr2'
]
},
block: {
rules: [
'blockquote',
'code',
'fences',
'heading',
'hr',
'htmlblock',
'lheading',
'list',
'paragraph'
]
},
inline: {
rules: [
'autolink',
'backticks',
'emphasis',
'entity',
'escape',
'htmltag',
'links',
'newline',
'text'
]
}
}
};
/**
* Preset configs
*/
var config = {
'default': defaultConfig,
'full': fullConfig,
'commonmark': commonmarkConfig
};
/**
* The `StateCore` class manages state.
*
* @param {Object} `instance` Remarkable instance
* @param {String} `str` Markdown string
* @param {Object} `env`
*/
function StateCore(instance, str, env) {
this.src = str;
this.env = env;
this.options = instance.options;
this.tokens = [];
this.inlineMode = false;
this.inline = instance.inline;
this.block = instance.block;
this.renderer = instance.renderer;
this.typographer = instance.typographer;
}
/**
* The main `Remarkable` class. Create an instance of
* `Remarkable` with a `preset` and/or `options`.
*
* @param {String} `preset` If no preset is given, `default` is used.
* @param {Object} `options`
*/
function Remarkable(preset, options) {
if (typeof preset !== 'string') {
options = preset;
preset = 'default';
}
if (options && options.linkify != null) {
console.warn(
'linkify option is removed. Use linkify plugin instead:\n\n' +
'import Remarkable from \'remarkable\';\n' +
'import linkify from \'remarkable/linkify\';\n' +
'new Remarkable().use(linkify)\n'
);
}
this.inline = new ParserInline();
this.block = new ParserBlock();
this.core = new Core();
this.renderer = new Renderer();
this.ruler = new Ruler();
this.options = {};
this.configure(config[preset]);
this.set(options || {});
}
/**
* Set options as an alternative to passing them
* to the constructor.
*
* ```js
* md.set({typographer: true});
* ```
* @param {Object} `options`
* @api public
*/
Remarkable.prototype.set = function (options) {
assign(this.options, options);
};
/**
* Batch loader for components rules states, and options
*
* @param {Object} `presets`
*/
Remarkable.prototype.configure = function (presets) {
var self = this;
if (!presets) { throw new Error('Wrong `remarkable` preset, check name/content'); }
if (presets.options) { self.set(presets.options); }
if (presets.components) {
Object.keys(presets.components).forEach(function (name) {
if (presets.components[name].rules) {
self[name].ruler.enable(presets.components[name].rules, true);
}
});
}
};
/**
* Use a plugin.
*
* ```js
* var md = new Remarkable();
*
* md.use(plugin1)
* .use(plugin2, opts)
* .use(plugin3);
* ```
*
* @param {Function} `plugin`
* @param {Object} `options`
* @return {Object} `Remarkable` for chaining
*/
Remarkable.prototype.use = function (plugin, options) {
plugin(this, options);
return this;
};
/**
* Parse the input `string` and return a tokens array.
* Modifies `env` with definitions data.
*
* @param {String} `string`
* @param {Object} `env`
* @return {Array} Array of tokens
*/
Remarkable.prototype.parse = function (str, env) {
var state = new StateCore(this, str, env);
this.core.process(state);
return state.tokens;
};
/**
* The main `.render()` method that does all the magic :)
*
* @param {String} `string`
* @param {Object} `env`
* @return {String} Rendered HTML.
*/
Remarkable.prototype.render = function (str, env) {
env = env || {};
return this.renderer.render(this.parse(str, env), this.options, env);
};
/**
* Parse the given content `string` as a single string.
*
* @param {String} `string`
* @param {Object} `env`
* @return {Array} Array of tokens
*/
Remarkable.prototype.parseInline = function (str, env) {
var state = new StateCore(this, str, env);
state.inlineMode = true;
this.core.process(state);
return state.tokens;
};
/**
* Render a single content `string`, without wrapping it
* to paragraphs
*
* @param {String} `str`
* @param {Object} `env`
* @return {String}
*/
Remarkable.prototype.renderInline = function (str, env) {
env = env || {};
return this.renderer.render(this.parseInline(str, env), this.options, env);
};
var index_browser = /*#__PURE__*/Object.freeze({
__proto__: null,
Remarkable: Remarkable,
utils: utils
});
var base = createCommonjsModule(function (module, exports) {
exports.__esModule = true;
exports.getId = getId;
exports.noop = noop;
exports.walkTree = walkTree;
exports.arrayFrom = arrayFrom;
exports.flatMap = flatMap;
exports.addClass = addClass;
exports.childSelector = childSelector;
const uniqId = Math.random().toString(36).slice(2, 8);
let globalIndex = 0;
function getId() {
globalIndex += 1;
return `mm-${uniqId}-${globalIndex}`;
}
function noop() {// noop
}
function walkTree(tree, callback, key = 'c') {
const walk = (item, parent) => callback(item, () => {
var _item$key;
(_item$key = item[key]) == null ? void 0 : _item$key.forEach(child => {
walk(child, item);
});
}, parent);
walk(tree);
}
function arrayFrom(arrayLike) {
if (Array.from) return Array.from(arrayLike);
const array = [];
for (let i = 0; i < arrayLike.length; i += 1) {
array.push(arrayLike[i]);
}
return array;
}
function flatMap(arrayLike, callback) {
if (arrayLike.flatMap) return arrayLike.flatMap(callback);
const array = [];
for (let i = 0; i < arrayLike.length; i += 1) {
const result = callback(arrayLike[i], i, arrayLike);
if (Array.isArray(result)) array.push(...result);else array.push(result);
}
return array;
}
function addClass(className, ...rest) {
const classList = (className || '').split(' ').filter(Boolean);
rest.forEach(item => {
if (item && classList.indexOf(item) < 0) classList.push(item);
});
return classList.join(' ');
}
function childSelector(filter) {
if (typeof filter === 'string') {
const tagName = filter;
filter = el => el.tagName === tagName;
}
const filterFn = filter;
return function selector() {
let nodes = arrayFrom(this.childNodes);
if (filterFn) nodes = nodes.filter(node => filterFn(node));
return nodes;
};
}
});
var html = createCommonjsModule(function (module, exports) {
exports.__esModule = true;
exports.escapeHtml = escapeHtml;
exports.escapeScript = escapeScript;
exports.htmlOpen = htmlOpen;
exports.htmlClose = htmlClose;
exports.wrapHtml = wrapHtml;
exports.wrapStyle = wrapStyle;
function escapeHtml(html) {
return html.replace(/[&<"]/g, m => ({
'&': '&',
'<': '<',
'"': '"'
})[m]);
}
function escapeScript(content) {
return content.replace(/<(\/script>)/g, '\\x3c$2');
}
function htmlOpen(tagName, attrs) {
const attrStr = attrs ? Object.entries(attrs).map(([key, value]) => {
if (value == null || value === false) return;
key = ` ${escapeHtml(key)}`;
if (value === true) return key;
return `${key}="${escapeHtml(value)}"`;
}).filter(Boolean).join('') : '';
return `<${tagName}${attrStr}>`;
}
function htmlClose(tagName) {
return ``;
}
function wrapHtml(tagName, content, attrs) {
if (content == null) return htmlOpen(tagName, attrs);
return htmlOpen(tagName, attrs) + (content || '') + htmlClose(tagName);
}
function wrapStyle(text, style) {
if (style.code) text = wrapHtml('code', text);
if (style.del) text = wrapHtml('del', text);
if (style.em) text = wrapHtml('em', text);
if (style.strong) text = wrapHtml('strong', text);
return text;
}
});
var loader = createCommonjsModule(function (module, exports) {
exports.__esModule = true;
exports.buildCode = buildCode;
exports.memoize = memoize;
exports.loadJS = loadJS;
exports.loadCSS = loadCSS;
exports.initializePlugins = initializePlugins;
exports.persistJS = persistJS;
exports.persistCSS = persistCSS;
function buildCode(fn, ...args) {
const params = args.map(arg => {
if (typeof arg === 'function') return arg.toString();
return JSON.stringify(arg != null ? arg : null);
}).join(',');
return `(${fn.toString()})(${params})`;
}
function memoize(fn) {
const cache = {};
return function memoized(...args) {
const key = `${args[0]}`;
let data = cache[key];
if (!data) {
data = {
value: fn(...args)
};
cache[key] = data;
}
return data.value;
};
}
function createElement(tagName, props, attrs) {
const el = document.createElement(tagName);
if (props) {
Object.entries(props).forEach(([key, value]) => {
el[key] = value;
});
}
if (attrs) {
Object.entries(attrs).forEach(([key, value]) => {
el.setAttribute(key, value);
});
}
return el;
}
const memoizedPreloadJS = memoize(url => {
document.head.append(createElement('link', {
rel: 'preload',
as: 'script',
href: url
}));
});
function loadJSItem(item, context) {
if (item.type === 'script') {
return new Promise((resolve, reject) => {
document.head.append(createElement('script', Object.assign(Object.assign({}, item.data), {}, {
onload: resolve,
onerror: reject
})));
});
} else if (item.type === 'iife') {
const {
fn,
getParams
} = item.data;
fn(...((getParams == null ? void 0 : getParams(context)) || []));
}
}
function loadCSSItem(item) {
if (item.type === 'style') {
document.head.append(createElement('style', {
textContent: item.data
}));
} else if (item.type === 'stylesheet') {
document.head.append(createElement('link', Object.assign({
rel: 'stylesheet'
}, item.data)));
}
}
async function loadJS(items, options) {
const needPreload = items.filter(item => item.type === 'script');
if (needPreload.length > 1) needPreload.forEach(item => memoizedPreloadJS(item.data.src));
for (const item of items) {
await loadJSItem(item, options);
}
}
function loadCSS(items) {
for (const item of items) {
loadCSSItem(item);
}
}
async function initializePlugins(Markmap, plugins, options) {
options = Object.assign({}, options);
await Promise.all(plugins.map(plugin => {
loadCSS(plugin.styles);
return loadJS(plugin.scripts, options);
}));
for (const {
initialize
} of plugins) {
if (initialize) initialize(Markmap, options);
}
}
function persistJS(items, context) {
return items.map(item => {
if (item.type === 'script') return (0, html.wrapHtml)('script', '', item.data);
if (item.type === 'iife') {
const {
fn,
getParams
} = item.data;
return (0, html.wrapHtml)('script', (0, html.escapeScript)(buildCode(fn, ...((getParams == null ? void 0 : getParams(context)) || []))));
}
});
}
function persistCSS(items) {
return items.map(item => {
if (item.type === 'stylesheet') {
return (0, html.wrapHtml)('link', null, Object.assign({
rel: 'stylesheet'
}, item.data));
}
/* else if (item.type === 'style') */
return (0, html.wrapHtml)('style', item.data);
});
}
});
var util = createCommonjsModule(function (module, exports) {
exports.__esModule = true;
Object.keys(base).forEach(function (key) {
if (key === "default" || key === "__esModule") return;
exports[key] = base[key];
});
Object.keys(html).forEach(function (key) {
if (key === "default" || key === "__esModule") return;
exports[key] = html[key];
});
Object.keys(loader).forEach(function (key) {
if (key === "default" || key === "__esModule") return;
exports[key] = loader[key];
});
});
var transform_1 = createCommonjsModule(function (module, exports) {
exports.__esModule = true;
exports.buildTree = buildTree;
exports.transform = transform;
const md = new index_browser.Remarkable();
md.block.ruler.enable(['deflist']);
function extractInline(token) {
const html = [];
let style = {};
for (const child of token.children) {
if (child.type === 'text') {
html.push((0, util.wrapStyle)((0, util.escapeHtml)(child.content), style));
} else if (child.type === 'code') {
html.push((0, util.wrapHtml)('code', (0, util.wrapStyle)((0, util.escapeHtml)(child.content), style)));
} else if (child.type === 'softbreak') {
html.push('
');
} else if (child.type.endsWith('_open')) {
const type = child.type.slice(0, -5);
if (type === 'link') {
html.push((0, util.htmlOpen)('a', {
href: child.href,
title: child.title,
target: '_blank',
rel: 'noopener noreferrer'
}));
} else {
style = Object.assign(Object.assign({}, style), {}, {
[type]: true
});
}
} else if (child.type.endsWith('_close')) {
const type = child.type.slice(0, -6);
if (type === 'link') {
html.push((0, util.htmlClose)('a'));
} else {
style = Object.assign(Object.assign({}, style), {}, {
[type]: false
});
}
}
}
return html.join('');
}
function cleanNode(node, depth = 0) {
if (node.t === 'heading') {
// drop all paragraphs
node.c = node.c.filter(item => item.t !== 'paragraph');
} else if (node.t === 'list_item') {
var _node$p;
// keep first paragraph as content of list_item, drop others
node.c = node.c.filter(item => {
if (['paragraph', 'fence'].includes(item.t)) {
if (!node.v) node.v = item.v;
return false;
}
return true;
});
if (((_node$p = node.p) == null ? void 0 : _node$p.index) != null) {
node.v = `${node.p.index}. ${node.v}`;
}
} else if (node.t === 'ordered_list') {
var _node$p$start, _node$p2;
let index = (_node$p$start = (_node$p2 = node.p) == null ? void 0 : _node$p2.start) != null ? _node$p$start : 1;
node.c.forEach(item => {
if (item.t === 'list_item') {
item.p = Object.assign(Object.assign({}, item.p), {}, {
index: index
});
index += 1;
}
});
}
if (node.c.length === 0) {
delete node.c;
} else {
if (node.c.length === 1 && !node.c[0].v) {
node.c = node.c[0].c;
}
node.c.forEach(child => cleanNode(child, depth + 1));
}
node.d = depth;
delete node.p;
}
function buildTree(tokens) {
// TODO deal with -
const root = {
t: 'root',
d: 0,
v: '',
c: []
};
const stack = [root];
let depth = 0;
for (const token of tokens) {
let current = stack[stack.length - 1];
if (token.type.endsWith('_open')) {
const type = token.type.slice(0, -5);
const payload = {};
if (type === 'heading') {
depth = token.hLevel;
while (((_current = current) == null ? void 0 : _current.d) >= depth) {
var _current;
stack.pop();
current = stack[stack.length - 1];
}
} else {
var _current2;
depth = Math.max(depth, ((_current2 = current) == null ? void 0 : _current2.d) || 0) + 1;
if (type === 'ordered_list') {
payload.start = token.order;
}
}
const item = {
t: type,
d: depth,
p: payload,
v: '',
c: []
};
current.c.push(item);
stack.push(item);
} else if (!current) {
continue;
} else if (token.type === `${current.t}_close`) {
if (current.t === 'heading') {
depth = current.d;
} else {
stack.pop();
depth = 0;
}
} else if (token.type === 'inline') {
current.v = `${current.v || ''}${extractInline(token)}`;
} else if (token.type === 'fence') {
current.c.push({
t: token.type,
d: depth + 1,
v: `
${(0, util.escapeHtml)(token.content)}
`,
c: []
});
}
}
return root;
}
function transform(content) {
var _root$c;
const tokens = md.parse(content || '', {});
let root = buildTree(tokens);
cleanNode(root);
if (((_root$c = root.c) == null ? void 0 : _root$c.length) === 1) root = root.c[0];
return root;
}
});
var transform = /*@__PURE__*/unwrapExports(transform_1);
return transform;
})));