joyqi
5407 lines
188 KiB
JavaScript
5407 lines
188 KiB
JavaScript
//
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// showdown.js -- A javascript port of Markdown.
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//
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// Copyright (c) 2007 John Fraser.
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//
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// Original Markdown Copyright (c) 2004-2005 John Gruber
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// <http://daringfireball.net/projects/markdown/>
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//
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// Redistributable under a BSD-style open source license.
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// See license.txt for more information.
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//
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// The full source distribution is at:
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//
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// A A L
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// T C A
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// T K B
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//
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// <http://www.attacklab.net/>
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//
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//
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// Wherever possible, Showdown is a straight, line-by-line port
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// of the Perl version of Markdown.
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//
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// This is not a normal parser design; it's basically just a
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// series of string substitutions. It's hard to read and
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// maintain this way, but keeping Showdown close to the original
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// design makes it easier to port new features.
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//
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// More importantly, Showdown behaves like markdown.pl in most
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// edge cases. So web applications can do client-side preview
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// in Javascript, and then build identical HTML on the server.
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//
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// This port needs the new RegExp functionality of ECMA 262,
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// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers
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// should do fine. Even with the new regular expression features,
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// We do a lot of work to emulate Perl's regex functionality.
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// The tricky changes in this file mostly have the "attacklab:"
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// label. Major or self-explanatory changes don't.
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//
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// Smart diff tools like Araxis Merge will be able to match up
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// this file with markdown.pl in a useful way. A little tweaking
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// helps: in a copy of markdown.pl, replace "#" with "//" and
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// replace "$text" with "text". Be sure to ignore whitespace
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// and line endings.
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//
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//
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// Showdown usage:
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//
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// var text = "Markdown *rocks*.";
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//
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// var converter = new Showdown.converter();
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// var html = converter.makeHtml(text);
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//
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// alert(html);
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//
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// Note: move the sample code to the bottom of this
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// file before uncommenting it.
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//
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//
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// Showdown namespace
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//
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var Showdown = { extensions: {} };
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//
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// forEach
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//
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var forEach = Showdown.forEach = function(obj, callback) {
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if (typeof obj.forEach === 'function') {
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obj.forEach(callback);
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} else {
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var i, len = obj.length;
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for (i = 0; i < len; i++) {
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callback(obj[i], i, obj);
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}
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}
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};
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//
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// Standard extension naming
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//
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var stdExtName = function(s) {
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return s.replace(/[_-]||\s/g, '').toLowerCase();
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};
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//
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// converter
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//
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// Wraps all "globals" so that the only thing
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// exposed is makeHtml().
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//
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Showdown.converter = function(converter_options) {
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//
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// Globals:
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//
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// Global hashes, used by various utility routines
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var g_urls;
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var g_titles;
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var g_html_blocks;
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// Used to track when we're inside an ordered or unordered list
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// (see _ProcessListItems() for details):
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var g_list_level = 0;
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// Global extensions
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var g_lang_extensions = [];
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var g_output_modifiers = [];
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//
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// Automatic Extension Loading (node only):
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//
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if (typeof module !== 'undefind' && typeof exports !== 'undefined' && typeof require !== 'undefind') {
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var fs = require('fs');
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if (fs) {
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// Search extensions folder
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var extensions = fs.readdirSync((__dirname || '.')+'/extensions').filter(function(file){
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return ~file.indexOf('.js');
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}).map(function(file){
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return file.replace(/\.js$/, '');
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});
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// Load extensions into Showdown namespace
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Showdown.forEach(extensions, function(ext){
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var name = stdExtName(ext);
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Showdown.extensions[name] = require('./extensions/' + ext);
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});
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}
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}
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this.postConversion = null;
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this.preConversion = null;
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var self = this;
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this.makeHtml = function(text) {
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//
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// Main function. The order in which other subs are called here is
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// essential. Link and image substitutions need to happen before
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// _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
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// and <img> tags get encoded.
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//
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// Clear the global hashes. If we don't clear these, you get conflicts
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// from other articles when generating a page which contains more than
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// one article (e.g. an index page that shows the N most recent
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// articles):
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g_urls = {};
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g_titles = {};
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g_html_blocks = [];
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if (self.preConversion) {
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text = self.preConversion(text);
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}
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// attacklab: Replace ~ with ~T
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// This lets us use tilde as an escape char to avoid md5 hashes
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// The choice of character is arbitray; anything that isn't
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// magic in Markdown will work.
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text = text.replace(/~/g,"~T");
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// attacklab: Replace $ with ~D
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// RegExp interprets $ as a special character
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// when it's in a replacement string
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text = text.replace(/\$/g,"~D");
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// Standardize line endings
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text = text.replace(/\r\n/g,"\n"); // DOS to Unix
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text = text.replace(/\r/g,"\n"); // Mac to Unix
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// Make sure text begins and ends with a couple of newlines:
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text = "\n\n" + text + "\n\n";
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// Convert all tabs to spaces.
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text = _Detab(text);
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// Strip any lines consisting only of spaces and tabs.
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// This makes subsequent regexen easier to write, because we can
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// match consecutive blank lines with /\n+/ instead of something
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// contorted like /[ \t]*\n+/ .
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text = text.replace(/^[ \t]+$/mg,"");
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// Run language extensions
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Showdown.forEach(g_lang_extensions, function(x){
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text = _ExecuteExtension(x, text);
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});
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// Handle github codeblocks prior to running HashHTML so that
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// HTML contained within the codeblock gets escaped propertly
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text = _DoGithubCodeBlocks(text);
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// Turn block-level HTML blocks into hash entries
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text = _HashHTMLBlocks(text);
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// Strip link definitions, store in hashes.
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text = _StripLinkDefinitions(text);
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text = _RunBlockGamut(text);
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text = _UnescapeSpecialChars(text);
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// attacklab: Restore dollar signs
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text = text.replace(/~D/g,"$$");
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// attacklab: Restore tildes
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text = text.replace(/~T/g,"~");
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// Run output modifiers
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Showdown.forEach(g_output_modifiers, function(x){
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text = _ExecuteExtension(x, text);
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});
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text = text.replace(/<\/?(\!doctype|html|head|body|link|title|input|select|button|textarea|style|script|noscript|iframe|object|embed)[^>]*>/ig, function (all) {
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return all.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/'/g, ''')
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.replace(/"/g, '"');
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return all;
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});
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if (text.indexOf('<!--more-->')) {
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var parts = text.split(/\s*<\!\-\-more\-\->\s*/),
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summary = parts.shift(),
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details = parts.join('');
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text = '<div class="summary">' + summary + '</div>'
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+ '<div class="details">' + details + '</div>';
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}
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if (self.postConversion) {
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text = self.postConversion(text);
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}
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return text;
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};
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//
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// Options:
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//
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// Parse extensions options into separate arrays
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if (converter_options && converter_options.extensions) {
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// Iterate over each plugin
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Showdown.forEach(converter_options.extensions, function(plugin){
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// Assume it's a bundled plugin if a string is given
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if (typeof plugin === 'string') {
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plugin = Showdown.extensions[stdExtName(plugin)];
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}
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if (typeof plugin === 'function') {
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// Iterate over each extension within that plugin
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Showdown.forEach(plugin(self), function(ext){
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// Sort extensions by type
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if (ext.type) {
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if (ext.type === 'language' || ext.type === 'lang') {
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g_lang_extensions.push(ext);
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} else if (ext.type === 'output' || ext.type === 'html') {
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g_output_modifiers.push(ext);
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}
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} else {
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// Assume language extension
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g_output_modifiers.push(ext);
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}
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});
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} else {
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throw "Extension '" + plugin + "' could not be loaded. It was either not found or is not a valid extension.";
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}
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});
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}
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var _ExecuteExtension = function(ext, text) {
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if (ext.regex) {
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var re = new RegExp(ext.regex, 'g');
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return text.replace(re, ext.replace);
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} else if (ext.filter) {
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return ext.filter(text);
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}
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};
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var _StripLinkDefinitions = function(text) {
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//
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// Strips link definitions from text, stores the URLs and titles in
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// hash references.
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//
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// Link defs are in the form: ^[id]: url "optional title"
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/*
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var text = text.replace(/
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^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
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[ \t]*
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\n? // maybe *one* newline
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[ \t]*
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<?(\S+?)>? // url = $2
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[ \t]*
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\n? // maybe one newline
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[ \t]*
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(?:
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(\n*) // any lines skipped = $3 attacklab: lookbehind removed
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["(]
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(.+?) // title = $4
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[")]
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[ \t]*
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)? // title is optional
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(?:\n+|$)
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/gm,
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function(){...});
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*/
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// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
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text += "~0";
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text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|(?=~0))/gm,
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function (wholeMatch,m1,m2,m3,m4) {
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m1 = m1.toLowerCase();
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g_urls[m1] = _EncodeAmpsAndAngles(m2); // Link IDs are case-insensitive
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if (m3) {
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// Oops, found blank lines, so it's not a title.
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// Put back the parenthetical statement we stole.
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return m3+m4;
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} else if (m4) {
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g_titles[m1] = m4.replace(/"/g,""");
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}
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// Completely remove the definition from the text
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return "";
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}
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);
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// attacklab: strip sentinel
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text = text.replace(/~0/,"");
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return text;
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}
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var _HashHTMLBlocks = function(text) {
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// attacklab: Double up blank lines to reduce lookaround
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text = text.replace(/\n/g,"\n\n");
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// Hashify HTML blocks:
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// We only want to do this for block-level HTML tags, such as headers,
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// lists, and tables. That's because we still want to wrap <p>s around
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// "paragraphs" that are wrapped in non-block-level tags, such as anchors,
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// phrase emphasis, and spans. The list of tags we're looking for is
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// hard-coded:
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var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del|style|section|header|footer|nav|article|aside";
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var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|style|section|header|footer|nav|article|aside";
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// First, look for nested blocks, e.g.:
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// <div>
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// <div>
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// tags for inner block must be indented.
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// </div>
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// </div>
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//
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// The outermost tags must start at the left margin for this to match, and
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// the inner nested divs must be indented.
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// We need to do this before the next, more liberal match, because the next
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// match will start at the first `<div>` and stop at the first `</div>`.
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// attacklab: This regex can be expensive when it fails.
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/*
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var text = text.replace(/
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( // save in $1
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^ // start of line (with /m)
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<($block_tags_a) // start tag = $2
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\b // word break
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// attacklab: hack around khtml/pcre bug...
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[^\r]*?\n // any number of lines, minimally matching
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</\2> // the matching end tag
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[ \t]* // trailing spaces/tabs
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(?=\n+) // followed by a newline
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) // attacklab: there are sentinel newlines at end of document
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/gm,function(){...}};
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*/
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text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm,hashElement);
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//
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// Now match more liberally, simply from `\n<tag>` to `</tag>\n`
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//
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/*
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var text = text.replace(/
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( // save in $1
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^ // start of line (with /m)
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<($block_tags_b) // start tag = $2
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\b // word break
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// attacklab: hack around khtml/pcre bug...
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[^\r]*? // any number of lines, minimally matching
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</\2> // the matching end tag
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[ \t]* // trailing spaces/tabs
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(?=\n+) // followed by a newline
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) // attacklab: there are sentinel newlines at end of document
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/gm,function(){...}};
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*/
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text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|style|section|header|footer|nav|article|aside)\b[^\r]*?<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement);
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// Special case just for <hr />. It was easier to make a special case than
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// to make the other regex more complicated.
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/*
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text = text.replace(/
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( // save in $1
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\n\n // Starting after a blank line
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[ ]{0,3}
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(<(hr) // start tag = $2
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\b // word break
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([^<>])*? //
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\/?>) // the matching end tag
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[ \t]*
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(?=\n{2,}) // followed by a blank line
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)
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/g,hashElement);
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*/
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text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement);
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// Special case for standalone HTML comments:
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/*
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text = text.replace(/
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( // save in $1
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\n\n // Starting after a blank line
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[ ]{0,3} // attacklab: g_tab_width - 1
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<!
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(--[^\r]*?--\s*)+
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>
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[ \t]*
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(?=\n{2,}) // followed by a blank line
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)
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/g,hashElement);
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*/
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text = text.replace(/(\n\n[ ]{0,3}<!(--[^\r]*?--\s*)+>[ \t]*(?=\n{2,}))/g,hashElement);
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// PHP and ASP-style processor instructions (<?...?> and <%...%>)
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/*
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text = text.replace(/
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(?:
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\n\n // Starting after a blank line
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)
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( // save in $1
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[ ]{0,3} // attacklab: g_tab_width - 1
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(?:
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<([?%]) // $2
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[^\r]*?
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\2>
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)
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[ \t]*
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(?=\n{2,}) // followed by a blank line
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)
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/g,hashElement);
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*/
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text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement);
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// attacklab: Undo double lines (see comment at top of this function)
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text = text.replace(/\n\n/g,"\n");
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return text;
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}
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var hashElement = function(wholeMatch,m1) {
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var blockText = m1;
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// Undo double lines
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blockText = blockText.replace(/\n\n/g,"\n");
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blockText = blockText.replace(/^\n/,"");
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// strip trailing blank lines
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blockText = blockText.replace(/\n+$/g,"");
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// Replace the element text with a marker ("~KxK" where x is its key)
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blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n";
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return blockText;
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};
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var _RunBlockGamut = function(text) {
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//
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// These are all the transformations that form block-level
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// tags like paragraphs, headers, and list items.
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//
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text = _DoHeaders(text);
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// Do Horizontal Rules:
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var key = hashBlock("<hr />");
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text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key);
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text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm,key);
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text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm,key);
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text = _DoLists(text);
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text = _DoCodeBlocks(text);
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text = _DoBlockQuotes(text);
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// We already ran _HashHTMLBlocks() before, in Markdown(), but that
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// was to escape raw HTML in the original Markdown source. This time,
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// we're escaping the markup we've just created, so that we don't wrap
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// <p> tags around block-level tags.
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text = _HashHTMLBlocks(text);
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text = _FormParagraphs(text);
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return text;
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};
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var _RunSpanGamut = function(text) {
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//
|
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// These are all the transformations that occur *within* block-level
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// tags like paragraphs, headers, and list items.
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//
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|
|
text = _DoCodeSpans(text);
|
|
text = _EscapeSpecialCharsWithinTagAttributes(text);
|
|
text = _EncodeBackslashEscapes(text);
|
|
|
|
// Process anchor and image tags. Images must come first,
|
|
// because ![foo][f] looks like an anchor.
|
|
text = _DoImages(text);
|
|
text = _DoAnchors(text);
|
|
|
|
// Make links out of things like `<http://example.com/>`
|
|
// Must come after _DoAnchors(), because you can use < and >
|
|
// delimiters in inline links like [this](<url>).
|
|
text = _DoAutoLinks(text);
|
|
text = _EncodeAmpsAndAngles(text);
|
|
text = _DoItalicsAndBold(text);
|
|
|
|
// Do hard breaks:
|
|
text = text.replace(/ +\n/g," <br />\n");
|
|
|
|
return text;
|
|
}
|
|
|
|
var _EscapeSpecialCharsWithinTagAttributes = function(text) {
|
|
//
|
|
// Within tags -- meaning between < and > -- encode [\ ` * _] so they
|
|
// don't conflict with their use in Markdown for code, italics and strong.
|
|
//
|
|
|
|
// Build a regex to find HTML tags and comments. See Friedl's
|
|
// "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
|
|
var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi;
|
|
|
|
text = text.replace(regex, function(wholeMatch) {
|
|
var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g,"$1`");
|
|
tag = escapeCharacters(tag,"\\`*_");
|
|
return tag;
|
|
});
|
|
|
|
return text;
|
|
}
|
|
|
|
var _DoAnchors = function(text) {
|
|
//
|
|
// Turn Markdown link shortcuts into XHTML <a> tags.
|
|
//
|
|
//
|
|
// First, handle reference-style links: [link text] [id]
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[] // or anything else
|
|
)*
|
|
)
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)()()()() // pad remaining backreferences
|
|
/g,_DoAnchors_callback);
|
|
*/
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeAnchorTag);
|
|
|
|
//
|
|
// Next, inline-style links: [link text](url "optional title")
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[\]] // or anything else
|
|
)
|
|
)
|
|
\]
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?(.*?)>? // href = $4
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // Title = $7
|
|
\6 // matching quote
|
|
[ \t]* // ignore any spaces/tabs between closing quote and )
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g,writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?(.*?(?:\(.*?\).*?)?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeAnchorTag);
|
|
|
|
//
|
|
// Last, handle reference-style shortcuts: [link text]
|
|
// These must come last in case you've also got [link test][1]
|
|
// or [link test](/foo)
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
([^\[\]]+) // link text = $2; can't contain '[' or ']'
|
|
\]
|
|
)()()()()() // pad rest of backreferences
|
|
/g, writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
|
|
|
|
return text;
|
|
}
|
|
|
|
var writeAnchorTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
|
|
if (m7 == undefined) m7 = "";
|
|
var whole_match = m1;
|
|
var link_text = m2;
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
|
|
if (url == "") {
|
|
if (link_id == "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = link_text.toLowerCase().replace(/ ?\n/g," ");
|
|
}
|
|
url = "#"+link_id;
|
|
|
|
if (g_urls[link_id] != undefined) {
|
|
url = g_urls[link_id];
|
|
if (g_titles[link_id] != undefined) {
|
|
title = g_titles[link_id];
|
|
}
|
|
}
|
|
else {
|
|
if (whole_match.search(/\(\s*\)$/m)>-1) {
|
|
// Special case for explicit empty url
|
|
url = "";
|
|
} else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
}
|
|
|
|
url = escapeCharacters(url,"*_");
|
|
var result = "<a href=\"" + url + "\"";
|
|
|
|
if (title != "") {
|
|
title = title.replace(/"/g,""");
|
|
title = escapeCharacters(title,"*_");
|
|
result += " title=\"" + title + "\"";
|
|
}
|
|
|
|
result += ">" + link_text + "</a>";
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
var _DoImages = function(text) {
|
|
//
|
|
// Turn Markdown image shortcuts into <img> tags.
|
|
//
|
|
|
|
//
|
|
// First, handle reference-style labeled images: ![alt text][id]
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)()()()() // pad rest of backreferences
|
|
/g,writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeImageTag);
|
|
|
|
//
|
|
// Next, handle inline images: 
|
|
// Don't forget: encode * and _
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
\s? // One optional whitespace character
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?(\S+?)>? // src url = $4
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // title = $7
|
|
\6 // matching quote
|
|
[ \t]*
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g,writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeImageTag);
|
|
|
|
return text;
|
|
}
|
|
|
|
var writeImageTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
|
|
var whole_match = m1;
|
|
var alt_text = m2;
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
|
|
if (!title) title = "";
|
|
|
|
if (url == "") {
|
|
if (link_id == "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = alt_text.toLowerCase().replace(/ ?\n/g," ");
|
|
}
|
|
url = "#"+link_id;
|
|
|
|
if (g_urls[link_id] != undefined) {
|
|
url = g_urls[link_id];
|
|
if (g_titles[link_id] != undefined) {
|
|
title = g_titles[link_id];
|
|
}
|
|
}
|
|
else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
|
|
alt_text = alt_text.replace(/"/g,""");
|
|
url = escapeCharacters(url,"*_");
|
|
var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
|
|
|
|
// attacklab: Markdown.pl adds empty title attributes to images.
|
|
// Replicate this bug.
|
|
|
|
//if (title != "") {
|
|
title = title.replace(/"/g,""");
|
|
title = escapeCharacters(title,"*_");
|
|
result += " title=\"" + title + "\"";
|
|
//}
|
|
|
|
result += " />";
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
var _DoHeaders = function(text) {
|
|
|
|
// Setext-style headers:
|
|
// Header 1
|
|
// ========
|
|
//
|
|
// Header 2
|
|
// --------
|
|
//
|
|
text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
|
|
function(wholeMatch,m1){return hashBlock('<h1 id="' + headerId(m1) + '">' + _RunSpanGamut(m1) + "</h1>");});
|
|
|
|
text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
|
|
function(matchFound,m1){return hashBlock('<h2 id="' + headerId(m1) + '">' + _RunSpanGamut(m1) + "</h2>");});
|
|
|
|
// atx-style headers:
|
|
// # Header 1
|
|
// ## Header 2
|
|
// ## Header 2 with closing hashes ##
|
|
// ...
|
|
// ###### Header 6
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
^(\#{1,6}) // $1 = string of #'s
|
|
[ \t]*
|
|
(.+?) // $2 = Header text
|
|
[ \t]*
|
|
\#* // optional closing #'s (not counted)
|
|
\n+
|
|
/gm, function() {...});
|
|
*/
|
|
|
|
text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
|
|
function(wholeMatch,m1,m2) {
|
|
var h_level = m1.length;
|
|
return hashBlock("<h" + h_level + ' id="' + headerId(m2) + '">' + _RunSpanGamut(m2) + "</h" + h_level + ">");
|
|
});
|
|
|
|
function headerId(m) {
|
|
return m.replace(/[^\w]/g, '').toLowerCase();
|
|
}
|
|
return text;
|
|
}
|
|
|
|
// This declaration keeps Dojo compressor from outputting garbage:
|
|
var _ProcessListItems;
|
|
|
|
var _DoLists = function(text) {
|
|
//
|
|
// Form HTML ordered (numbered) and unordered (bulleted) lists.
|
|
//
|
|
|
|
// attacklab: add sentinel to hack around khtml/safari bug:
|
|
// http://bugs.webkit.org/show_bug.cgi?id=11231
|
|
text += "~0";
|
|
|
|
// Re-usable pattern to match any entirel ul or ol list:
|
|
|
|
/*
|
|
var whole_list = /
|
|
( // $1 = whole list
|
|
( // $2
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
([*+-]|\d+[.]) // $3 = first list item marker
|
|
[ \t]+
|
|
)
|
|
[^\r]+?
|
|
( // $4
|
|
~0 // sentinel for workaround; should be $
|
|
|
|
|
\n{2,}
|
|
(?=\S)
|
|
(?! // Negative lookahead for another list item marker
|
|
[ \t]*
|
|
(?:[*+-]|\d+[.])[ \t]+
|
|
)
|
|
)
|
|
)/g
|
|
*/
|
|
var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
|
|
|
|
if (g_list_level) {
|
|
text = text.replace(whole_list,function(wholeMatch,m1,m2) {
|
|
var list = m1;
|
|
var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol";
|
|
|
|
// Turn double returns into triple returns, so that we can make a
|
|
// paragraph for the last item in a list, if necessary:
|
|
list = list.replace(/\n{2,}/g,"\n\n\n");;
|
|
var result = _ProcessListItems(list);
|
|
|
|
// Trim any trailing whitespace, to put the closing `</$list_type>`
|
|
// up on the preceding line, to get it past the current stupid
|
|
// HTML block parser. This is a hack to work around the terrible
|
|
// hack that is the HTML block parser.
|
|
result = result.replace(/\s+$/,"");
|
|
result = "<"+list_type+">" + result + "</"+list_type+">\n";
|
|
return result;
|
|
});
|
|
} else {
|
|
whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
|
|
text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) {
|
|
var runup = m1;
|
|
var list = m2;
|
|
|
|
var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol";
|
|
// Turn double returns into triple returns, so that we can make a
|
|
// paragraph for the last item in a list, if necessary:
|
|
var list = list.replace(/\n{2,}/g,"\n\n\n");;
|
|
var result = _ProcessListItems(list);
|
|
result = runup + "<"+list_type+">\n" + result + "</"+list_type+">\n";
|
|
return result;
|
|
});
|
|
}
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/,"");
|
|
|
|
return text;
|
|
}
|
|
|
|
_ProcessListItems = function(list_str) {
|
|
//
|
|
// Process the contents of a single ordered or unordered list, splitting it
|
|
// into individual list items.
|
|
//
|
|
// The $g_list_level global keeps track of when we're inside a list.
|
|
// Each time we enter a list, we increment it; when we leave a list,
|
|
// we decrement. If it's zero, we're not in a list anymore.
|
|
//
|
|
// We do this because when we're not inside a list, we want to treat
|
|
// something like this:
|
|
//
|
|
// I recommend upgrading to version
|
|
// 8. Oops, now this line is treated
|
|
// as a sub-list.
|
|
//
|
|
// As a single paragraph, despite the fact that the second line starts
|
|
// with a digit-period-space sequence.
|
|
//
|
|
// Whereas when we're inside a list (or sub-list), that line will be
|
|
// treated as the start of a sub-list. What a kludge, huh? This is
|
|
// an aspect of Markdown's syntax that's hard to parse perfectly
|
|
// without resorting to mind-reading. Perhaps the solution is to
|
|
// change the syntax rules such that sub-lists must start with a
|
|
// starting cardinal number; e.g. "1." or "a.".
|
|
|
|
g_list_level++;
|
|
|
|
// trim trailing blank lines:
|
|
list_str = list_str.replace(/\n{2,}$/,"\n");
|
|
|
|
// attacklab: add sentinel to emulate \z
|
|
list_str += "~0";
|
|
|
|
/*
|
|
list_str = list_str.replace(/
|
|
(\n)? // leading line = $1
|
|
(^[ \t]*) // leading whitespace = $2
|
|
([*+-]|\d+[.]) [ \t]+ // list marker = $3
|
|
([^\r]+? // list item text = $4
|
|
(\n{1,2}))
|
|
(?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+))
|
|
/gm, function(){...});
|
|
*/
|
|
list_str = list_str.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm,
|
|
function(wholeMatch,m1,m2,m3,m4){
|
|
var item = m4;
|
|
var leading_line = m1;
|
|
var leading_space = m2;
|
|
|
|
if (leading_line || (item.search(/\n{2,}/)>-1)) {
|
|
item = _RunBlockGamut(_Outdent(item));
|
|
}
|
|
else {
|
|
// Recursion for sub-lists:
|
|
item = _DoLists(_Outdent(item));
|
|
item = item.replace(/\n$/,""); // chomp(item)
|
|
item = _RunSpanGamut(item);
|
|
}
|
|
|
|
return "<li>" + item + "</li>\n";
|
|
}
|
|
);
|
|
|
|
// attacklab: strip sentinel
|
|
list_str = list_str.replace(/~0/g,"");
|
|
|
|
g_list_level--;
|
|
return list_str;
|
|
}
|
|
|
|
|
|
var _DoCodeBlocks = function(text) {
|
|
//
|
|
// Process Markdown `<pre><code>` blocks.
|
|
//
|
|
|
|
/*
|
|
text = text.replace(text,
|
|
/(?:\n\n|^)
|
|
( // $1 = the code block -- one or more lines, starting with a space/tab
|
|
(?:
|
|
(?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
|
|
.*\n+
|
|
)+
|
|
)
|
|
(\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width
|
|
/g,function(){...});
|
|
*/
|
|
|
|
// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
text += "~0";
|
|
|
|
text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
|
|
function(wholeMatch,m1,m2) {
|
|
var codeblock = m1;
|
|
var nextChar = m2;
|
|
|
|
codeblock = _EncodeCode( _Outdent(codeblock));
|
|
codeblock = _Detab(codeblock);
|
|
codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
|
|
codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
|
|
|
|
codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
|
|
|
|
return hashBlock(codeblock) + nextChar;
|
|
}
|
|
);
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/,"");
|
|
|
|
return text;
|
|
};
|
|
|
|
var _DoGithubCodeBlocks = function(text) {
|
|
//
|
|
// Process Github-style code blocks
|
|
// Example:
|
|
// ```ruby
|
|
// def hello_world(x)
|
|
// puts "Hello, #{x}"
|
|
// end
|
|
// ```
|
|
//
|
|
|
|
|
|
// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
text += "~0";
|
|
|
|
text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g,
|
|
function(wholeMatch,m1,m2) {
|
|
var language = m1;
|
|
var codeblock = m2;
|
|
|
|
codeblock = _EncodeCode(codeblock);
|
|
codeblock = _Detab(codeblock);
|
|
codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
|
|
codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
|
|
|
|
codeblock = "<pre><code" + (language ? " class=\"lang-" + language + '"' : "") + ">" + codeblock + "\n</code></pre>";
|
|
|
|
return hashBlock(codeblock);
|
|
}
|
|
);
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/,"");
|
|
|
|
return text;
|
|
}
|
|
|
|
var hashBlock = function(text) {
|
|
text = text.replace(/(^\n+|\n+$)/g,"");
|
|
return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
|
|
}
|
|
|
|
var _DoCodeSpans = function(text) {
|
|
//
|
|
// * Backtick quotes are used for <code></code> spans.
|
|
//
|
|
// * You can use multiple backticks as the delimiters if you want to
|
|
// include literal backticks in the code span. So, this input:
|
|
//
|
|
// Just type ``foo `bar` baz`` at the prompt.
|
|
//
|
|
// Will translate to:
|
|
//
|
|
// <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
|
|
//
|
|
// There's no arbitrary limit to the number of backticks you
|
|
// can use as delimters. If you need three consecutive backticks
|
|
// in your code, use four for delimiters, etc.
|
|
//
|
|
// * You can use spaces to get literal backticks at the edges:
|
|
//
|
|
// ... type `` `bar` `` ...
|
|
//
|
|
// Turns to:
|
|
//
|
|
// ... type <code>`bar`</code> ...
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
(^|[^\\]) // Character before opening ` can't be a backslash
|
|
(`+) // $2 = Opening run of `
|
|
( // $3 = The code block
|
|
[^\r]*?
|
|
[^`] // attacklab: work around lack of lookbehind
|
|
)
|
|
\2 // Matching closer
|
|
(?!`)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
|
|
function(wholeMatch,m1,m2,m3,m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g,""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g,""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
return m1+"<code>"+c+"</code>";
|
|
});
|
|
|
|
return text;
|
|
}
|
|
|
|
var _EncodeCode = function(text) {
|
|
//
|
|
// Encode/escape certain characters inside Markdown code runs.
|
|
// The point is that in code, these characters are literals,
|
|
// and lose their special Markdown meanings.
|
|
//
|
|
// Encode all ampersands; HTML entities are not
|
|
// entities within a Markdown code span.
|
|
text = text.replace(/&/g,"&");
|
|
|
|
// Do the angle bracket song and dance:
|
|
text = text.replace(/</g,"<");
|
|
text = text.replace(/>/g,">");
|
|
|
|
// Now, escape characters that are magic in Markdown:
|
|
text = escapeCharacters(text,"\*_{}[]\\",false);
|
|
|
|
// jj the line above breaks this:
|
|
//---
|
|
|
|
//* Item
|
|
|
|
// 1. Subitem
|
|
|
|
// special char: *
|
|
//---
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
var _DoItalicsAndBold = function(text) {
|
|
|
|
// <strong> must go first:
|
|
text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g,
|
|
"<strong>$2</strong>");
|
|
|
|
text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
|
|
"<em>$2</em>");
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
var _DoBlockQuotes = function(text) {
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // Wrap whole match in $1
|
|
(
|
|
^[ \t]*>[ \t]? // '>' at the start of a line
|
|
.+\n // rest of the first line
|
|
(.+\n)* // subsequent consecutive lines
|
|
\n* // blanks
|
|
)+
|
|
)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
|
|
function(wholeMatch,m1) {
|
|
var bq = m1;
|
|
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
|
|
bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0"); // trim one level of quoting
|
|
|
|
// attacklab: clean up hack
|
|
bq = bq.replace(/~0/g,"");
|
|
|
|
bq = bq.replace(/^[ \t]+$/gm,""); // trim whitespace-only lines
|
|
bq = _RunBlockGamut(bq); // recurse
|
|
|
|
bq = bq.replace(/(^|\n)/g,"$1 ");
|
|
// These leading spaces screw with <pre> content, so we need to fix that:
|
|
bq = bq.replace(
|
|
/(\s*<pre>[^\r]+?<\/pre>)/gm,
|
|
function(wholeMatch,m1) {
|
|
var pre = m1;
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
pre = pre.replace(/^ /mg,"~0");
|
|
pre = pre.replace(/~0/g,"");
|
|
return pre;
|
|
});
|
|
|
|
return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
|
|
});
|
|
return text;
|
|
}
|
|
|
|
|
|
var _FormParagraphs = function(text) {
|
|
//
|
|
// Params:
|
|
// $text - string to process with html <p> tags
|
|
//
|
|
|
|
// Strip leading and trailing lines:
|
|
text = text.replace(/^\n+/g,"");
|
|
text = text.replace(/\n+$/g,"");
|
|
|
|
var grafs = text.split(/\n{2,}/g);
|
|
var grafsOut = [];
|
|
|
|
//
|
|
// Wrap <p> tags.
|
|
//
|
|
var end = grafs.length;
|
|
for (var i=0; i<end; i++) {
|
|
var str = grafs[i];
|
|
|
|
// if this is an HTML marker, copy it
|
|
if (str.search(/~K(\d+)K/g) >= 0) {
|
|
grafsOut.push(str);
|
|
}
|
|
else if (str.search(/\S/) >= 0) {
|
|
str = _RunSpanGamut(str);
|
|
str = str.replace(/^([ \t]*)/g,"<p>");
|
|
str += "</p>"
|
|
grafsOut.push(str);
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
// Unhashify HTML blocks
|
|
//
|
|
end = grafsOut.length;
|
|
for (var i=0; i<end; i++) {
|
|
// if this is a marker for an html block...
|
|
while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
|
|
var blockText = g_html_blocks[RegExp.$1];
|
|
blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
|
|
grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
|
|
}
|
|
}
|
|
|
|
return grafsOut.join("\n\n");
|
|
}
|
|
|
|
|
|
var _EncodeAmpsAndAngles = function(text) {
|
|
// Smart processing for ampersands and angle brackets that need to be encoded.
|
|
|
|
// Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
|
|
// http://bumppo.net/projects/amputator/
|
|
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&");
|
|
|
|
// Encode naked <'s
|
|
text = text.replace(/<(?![a-z\/?\$!])/gi,"<");
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
var _EncodeBackslashEscapes = function(text) {
|
|
//
|
|
// Parameter: String.
|
|
// Returns: The string, with after processing the following backslash
|
|
// escape sequences.
|
|
//
|
|
|
|
// attacklab: The polite way to do this is with the new
|
|
// escapeCharacters() function:
|
|
//
|
|
// text = escapeCharacters(text,"\\",true);
|
|
// text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
|
|
//
|
|
// ...but we're sidestepping its use of the (slow) RegExp constructor
|
|
// as an optimization for Firefox. This function gets called a LOT.
|
|
|
|
text = text.replace(/\\(\\)/g,escapeCharacters_callback);
|
|
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
|
|
return text;
|
|
}
|
|
|
|
|
|
var _handleTrailingParens = function(wholeMatch, lookbehind, protocol, link) {
|
|
if (lookbehind)
|
|
return wholeMatch;
|
|
if (link.charAt(link.length - 1) !== ")")
|
|
return "<" + protocol + link + ">";
|
|
var parens = link.match(/[()]/g);
|
|
var level = 0;
|
|
for (var i = 0; i < parens.length; i++) {
|
|
if (parens[i] === "(") {
|
|
if (level <= 0)
|
|
level = 1;
|
|
else
|
|
level++;
|
|
}
|
|
else {
|
|
level--;
|
|
}
|
|
}
|
|
var tail = "";
|
|
if (level < 0) {
|
|
var re = new RegExp("\\){1," + (-level) + "}$");
|
|
link = link.replace(re, function (trailingParens) {
|
|
tail = trailingParens;
|
|
return "";
|
|
});
|
|
}
|
|
|
|
// console.log(protocol, link, tail);
|
|
|
|
return "<" + protocol + link + ">" + tail;
|
|
}
|
|
|
|
var _DoAutoLinks = function(text) {
|
|
|
|
// text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"<a href=\"$1\">$1</a>");
|
|
text = text.replace(/(="|<)?\b(https?|ftp)(:\/\/[-A-Z0-9+&@#\/%?=~_|\[\]\(\)!:,\.;]*[-A-Z0-9+&@#\/%=~_|\[\])])(?=$|\W)/gi, _handleTrailingParens);
|
|
var replacer = function (wholematch, m1) { return "<a href=\"" + m1 + "\">" + m1 + "</a>"; }
|
|
text = text.replace(/<((https?|ftp):[^'">\s]+)>/gi, replacer);
|
|
|
|
// Email addresses: <address@domain.foo>
|
|
|
|
/*
|
|
text = text.replace(/
|
|
<
|
|
(?:mailto:)?
|
|
(
|
|
[-.\w]+
|
|
\@
|
|
[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
|
|
)
|
|
>
|
|
/gi, _DoAutoLinks_callback());
|
|
*/
|
|
text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
|
|
function(wholeMatch,m1) {
|
|
return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
|
|
}
|
|
);
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
var _EncodeEmailAddress = function(addr) {
|
|
//
|
|
// Input: an email address, e.g. "foo@example.com"
|
|
//
|
|
// Output: the email address as a mailto link, with each character
|
|
// of the address encoded as either a decimal or hex entity, in
|
|
// the hopes of foiling most address harvesting spam bots. E.g.:
|
|
//
|
|
// <a href="mailto:foo@e
|
|
// xample.com">foo
|
|
// @example.com</a>
|
|
//
|
|
// Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
|
|
// mailing list: <http://tinyurl.com/yu7ue>
|
|
//
|
|
|
|
var encode = [
|
|
function(ch){return "&#"+ch.charCodeAt(0)+";";},
|
|
function(ch){return "&#x"+ch.charCodeAt(0).toString(16)+";";},
|
|
function(ch){return ch;}
|
|
];
|
|
|
|
addr = "mailto:" + addr;
|
|
|
|
addr = addr.replace(/./g, function(ch) {
|
|
if (ch == "@") {
|
|
// this *must* be encoded. I insist.
|
|
ch = encode[Math.floor(Math.random()*2)](ch);
|
|
} else if (ch !=":") {
|
|
// leave ':' alone (to spot mailto: later)
|
|
var r = Math.random();
|
|
// roughly 10% raw, 45% hex, 45% dec
|
|
ch = (
|
|
r > .9 ? encode[2](ch) :
|
|
r > .45 ? encode[1](ch) :
|
|
encode[0](ch)
|
|
);
|
|
}
|
|
return ch;
|
|
});
|
|
|
|
addr = "<a href=\"" + addr + "\">" + addr + "</a>";
|
|
addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
|
|
|
|
return addr;
|
|
}
|
|
|
|
|
|
var _UnescapeSpecialChars = function(text) {
|
|
//
|
|
// Swap back in all the special characters we've hidden.
|
|
//
|
|
text = text.replace(/~E(\d+)E/g,
|
|
function(wholeMatch,m1) {
|
|
var charCodeToReplace = parseInt(m1);
|
|
return String.fromCharCode(charCodeToReplace);
|
|
}
|
|
);
|
|
return text;
|
|
}
|
|
|
|
|
|
var _Outdent = function(text) {
|
|
//
|
|
// Remove one level of line-leading tabs or spaces
|
|
//
|
|
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
|
|
text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
|
|
|
|
// attacklab: clean up hack
|
|
text = text.replace(/~0/g,"")
|
|
|
|
return text;
|
|
}
|
|
|
|
var _Detab = function(text) {
|
|
// attacklab: Detab's completely rewritten for speed.
|
|
// In perl we could fix it by anchoring the regexp with \G.
|
|
// In javascript we're less fortunate.
|
|
|
|
// expand first n-1 tabs
|
|
text = text.replace(/\t(?=\t)/g," "); // attacklab: g_tab_width
|
|
|
|
// replace the nth with two sentinels
|
|
text = text.replace(/\t/g,"~A~B");
|
|
|
|
// use the sentinel to anchor our regex so it doesn't explode
|
|
text = text.replace(/~B(.+?)~A/g,
|
|
function(wholeMatch,m1,m2) {
|
|
var leadingText = m1;
|
|
var numSpaces = 4 - leadingText.length % 4; // attacklab: g_tab_width
|
|
|
|
// there *must* be a better way to do this:
|
|
for (var i=0; i<numSpaces; i++) leadingText+=" ";
|
|
|
|
return leadingText;
|
|
}
|
|
);
|
|
|
|
// clean up sentinels
|
|
text = text.replace(/~A/g," "); // attacklab: g_tab_width
|
|
text = text.replace(/~B/g,"");
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
//
|
|
// attacklab: Utility functions
|
|
//
|
|
|
|
|
|
var escapeCharacters = function(text, charsToEscape, afterBackslash) {
|
|
// First we have to escape the escape characters so that
|
|
// we can build a character class out of them
|
|
var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g,"\\$1") + "])";
|
|
|
|
if (afterBackslash) {
|
|
regexString = "\\\\" + regexString;
|
|
}
|
|
|
|
var regex = new RegExp(regexString,"g");
|
|
text = text.replace(regex,escapeCharacters_callback);
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
var escapeCharacters_callback = function(wholeMatch,m1) {
|
|
var charCodeToEscape = m1.charCodeAt(0);
|
|
return "~E"+charCodeToEscape+"E";
|
|
}
|
|
|
|
} // end of Showdown.converter
|
|
|
|
|
|
// export
|
|
if (typeof module !== 'undefined') module.exports = Showdown;
|
|
|
|
// stolen from AMD branch of underscore
|
|
// AMD define happens at the end for compatibility with AMD loaders
|
|
// that don't enforce next-turn semantics on modules.
|
|
if (typeof define === 'function' && define.amd) {
|
|
define('showdown', function() {
|
|
return Showdown;
|
|
});
|
|
}
|
|
|
|
|
|
var Markdown;
|
|
|
|
if (typeof exports === "object" && typeof require === "function") // we're in a CommonJS (e.g. Node.js) module
|
|
Markdown = exports;
|
|
else
|
|
Markdown = {};
|
|
|
|
// The following text is included for historical reasons, but should
|
|
// be taken with a pinch of salt; it's not all true anymore.
|
|
|
|
//
|
|
// Wherever possible, Showdown is a straight, line-by-line port
|
|
// of the Perl version of Markdown.
|
|
//
|
|
// This is not a normal parser design; it's basically just a
|
|
// series of string substitutions. It's hard to read and
|
|
// maintain this way, but keeping Showdown close to the original
|
|
// design makes it easier to port new features.
|
|
//
|
|
// More importantly, Showdown behaves like markdown.pl in most
|
|
// edge cases. So web applications can do client-side preview
|
|
// in Javascript, and then build identical HTML on the server.
|
|
//
|
|
// This port needs the new RegExp functionality of ECMA 262,
|
|
// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers
|
|
// should do fine. Even with the new regular expression features,
|
|
// We do a lot of work to emulate Perl's regex functionality.
|
|
// The tricky changes in this file mostly have the "attacklab:"
|
|
// label. Major or self-explanatory changes don't.
|
|
//
|
|
// Smart diff tools like Araxis Merge will be able to match up
|
|
// this file with markdown.pl in a useful way. A little tweaking
|
|
// helps: in a copy of markdown.pl, replace "#" with "//" and
|
|
// replace "$text" with "text". Be sure to ignore whitespace
|
|
// and line endings.
|
|
//
|
|
|
|
|
|
//
|
|
// Usage:
|
|
//
|
|
// var text = "Markdown *rocks*.";
|
|
//
|
|
// var converter = new Markdown.Converter();
|
|
// var html = converter.makeHtml(text);
|
|
//
|
|
// alert(html);
|
|
//
|
|
// Note: move the sample code to the bottom of this
|
|
// file before uncommenting it.
|
|
//
|
|
|
|
(function () {
|
|
|
|
function identity(x) { return x; }
|
|
function returnFalse(x) { return false; }
|
|
|
|
function HookCollection() { }
|
|
|
|
HookCollection.prototype = {
|
|
|
|
chain: function (hookname, func) {
|
|
var original = this[hookname];
|
|
if (!original)
|
|
throw new Error("unknown hook " + hookname);
|
|
|
|
if (original === identity)
|
|
this[hookname] = func;
|
|
else
|
|
this[hookname] = function (text) {
|
|
var args = Array.prototype.slice.call(arguments, 0);
|
|
args[0] = original.apply(null, args);
|
|
return func.apply(null, args);
|
|
};
|
|
},
|
|
set: function (hookname, func) {
|
|
if (!this[hookname])
|
|
throw new Error("unknown hook " + hookname);
|
|
this[hookname] = func;
|
|
},
|
|
addNoop: function (hookname) {
|
|
this[hookname] = identity;
|
|
},
|
|
addFalse: function (hookname) {
|
|
this[hookname] = returnFalse;
|
|
}
|
|
};
|
|
|
|
Markdown.HookCollection = HookCollection;
|
|
|
|
// g_urls and g_titles allow arbitrary user-entered strings as keys. This
|
|
// caused an exception (and hence stopped the rendering) when the user entered
|
|
// e.g. [push] or [__proto__]. Adding a prefix to the actual key prevents this
|
|
// (since no builtin property starts with "s_"). See
|
|
// http://meta.stackoverflow.com/questions/64655/strange-wmd-bug
|
|
// (granted, switching from Array() to Object() alone would have left only __proto__
|
|
// to be a problem)
|
|
function SaveHash() { }
|
|
SaveHash.prototype = {
|
|
set: function (key, value) {
|
|
this["s_" + key] = value;
|
|
},
|
|
get: function (key) {
|
|
return this["s_" + key];
|
|
}
|
|
};
|
|
|
|
Markdown.Converter = function () {
|
|
var pluginHooks = this.hooks = new HookCollection();
|
|
|
|
// given a URL that was encountered by itself (without markup), should return the link text that's to be given to this link
|
|
pluginHooks.addNoop("plainLinkText");
|
|
|
|
// called with the orignal text as given to makeHtml. The result of this plugin hook is the actual markdown source that will be cooked
|
|
pluginHooks.addNoop("preConversion");
|
|
|
|
// called with the text once all normalizations have been completed (tabs to spaces, line endings, etc.), but before any conversions have
|
|
pluginHooks.addNoop("postNormalization");
|
|
|
|
// Called with the text before / after creating block elements like code blocks and lists. Note that this is called recursively
|
|
// with inner content, e.g. it's called with the full text, and then only with the content of a blockquote. The inner
|
|
// call will receive outdented text.
|
|
pluginHooks.addNoop("preBlockGamut");
|
|
pluginHooks.addNoop("postBlockGamut");
|
|
|
|
// called with the text of a single block element before / after the span-level conversions (bold, code spans, etc.) have been made
|
|
pluginHooks.addNoop("preSpanGamut");
|
|
pluginHooks.addNoop("postSpanGamut");
|
|
|
|
// called with the final cooked HTML code. The result of this plugin hook is the actual output of makeHtml
|
|
pluginHooks.addNoop("postConversion");
|
|
|
|
//
|
|
// Private state of the converter instance:
|
|
//
|
|
|
|
// Global hashes, used by various utility routines
|
|
var g_urls;
|
|
var g_titles;
|
|
var g_html_blocks;
|
|
|
|
// Used to track when we're inside an ordered or unordered list
|
|
// (see _ProcessListItems() for details):
|
|
var g_list_level;
|
|
|
|
this.makeHtml = function (text) {
|
|
|
|
//
|
|
// Main function. The order in which other subs are called here is
|
|
// essential. Link and image substitutions need to happen before
|
|
// _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
|
|
// and <img> tags get encoded.
|
|
//
|
|
|
|
// This will only happen if makeHtml on the same converter instance is called from a plugin hook.
|
|
// Don't do that.
|
|
if (g_urls)
|
|
throw new Error("Recursive call to converter.makeHtml");
|
|
|
|
// Create the private state objects.
|
|
g_urls = new SaveHash();
|
|
g_titles = new SaveHash();
|
|
g_html_blocks = [];
|
|
g_list_level = 0;
|
|
|
|
text = pluginHooks.preConversion(text);
|
|
|
|
// attacklab: Replace ~ with ~T
|
|
// This lets us use tilde as an escape char to avoid md5 hashes
|
|
// The choice of character is arbitray; anything that isn't
|
|
// magic in Markdown will work.
|
|
text = text.replace(/~/g, "~T");
|
|
|
|
// attacklab: Replace $ with ~D
|
|
// RegExp interprets $ as a special character
|
|
// when it's in a replacement string
|
|
text = text.replace(/\$/g, "~D");
|
|
|
|
// Standardize line endings
|
|
text = text.replace(/\r\n/g, "\n"); // DOS to Unix
|
|
text = text.replace(/\r/g, "\n"); // Mac to Unix
|
|
|
|
// Make sure text begins and ends with a couple of newlines:
|
|
text = "\n\n" + text + "\n\n";
|
|
|
|
// Convert all tabs to spaces.
|
|
text = _Detab(text);
|
|
|
|
// Strip any lines consisting only of spaces and tabs.
|
|
// This makes subsequent regexen easier to write, because we can
|
|
// match consecutive blank lines with /\n+/ instead of something
|
|
// contorted like /[ \t]*\n+/ .
|
|
text = text.replace(/^[ \t]+$/mg, "");
|
|
|
|
text = pluginHooks.postNormalization(text);
|
|
|
|
// Turn block-level HTML blocks into hash entries
|
|
text = _HashHTMLBlocks(text);
|
|
|
|
// Strip link definitions, store in hashes.
|
|
text = _StripLinkDefinitions(text);
|
|
|
|
text = _RunBlockGamut(text);
|
|
|
|
text = _UnescapeSpecialChars(text);
|
|
|
|
// attacklab: Restore dollar signs
|
|
text = text.replace(/~D/g, "$$");
|
|
|
|
// attacklab: Restore tildes
|
|
text = text.replace(/~T/g, "~");
|
|
|
|
text = pluginHooks.postConversion(text);
|
|
|
|
g_html_blocks = g_titles = g_urls = null;
|
|
|
|
return text;
|
|
};
|
|
|
|
function _StripLinkDefinitions(text) {
|
|
//
|
|
// Strips link definitions from text, stores the URLs and titles in
|
|
// hash references.
|
|
//
|
|
|
|
// Link defs are in the form: ^[id]: url "optional title"
|
|
|
|
/*
|
|
text = text.replace(/
|
|
^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
|
|
[ \t]*
|
|
\n? // maybe *one* newline
|
|
[ \t]*
|
|
<?(\S+?)>? // url = $2
|
|
(?=\s|$) // lookahead for whitespace instead of the lookbehind removed below
|
|
[ \t]*
|
|
\n? // maybe one newline
|
|
[ \t]*
|
|
( // (potential) title = $3
|
|
(\n*) // any lines skipped = $4 attacklab: lookbehind removed
|
|
[ \t]+
|
|
["(]
|
|
(.+?) // title = $5
|
|
[")]
|
|
[ \t]*
|
|
)? // title is optional
|
|
(?:\n+|$)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm,
|
|
function (wholeMatch, m1, m2, m3, m4, m5) {
|
|
m1 = m1.toLowerCase();
|
|
g_urls.set(m1, _EncodeAmpsAndAngles(m2)); // Link IDs are case-insensitive
|
|
if (m4) {
|
|
// Oops, found blank lines, so it's not a title.
|
|
// Put back the parenthetical statement we stole.
|
|
return m3;
|
|
} else if (m5) {
|
|
g_titles.set(m1, m5.replace(/"/g, """));
|
|
}
|
|
|
|
// Completely remove the definition from the text
|
|
return "";
|
|
}
|
|
);
|
|
|
|
return text;
|
|
}
|
|
|
|
function _HashHTMLBlocks(text) {
|
|
|
|
// Hashify HTML blocks:
|
|
// We only want to do this for block-level HTML tags, such as headers,
|
|
// lists, and tables. That's because we still want to wrap <p>s around
|
|
// "paragraphs" that are wrapped in non-block-level tags, such as anchors,
|
|
// phrase emphasis, and spans. The list of tags we're looking for is
|
|
// hard-coded:
|
|
var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del"
|
|
var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math"
|
|
|
|
// First, look for nested blocks, e.g.:
|
|
// <div>
|
|
// <div>
|
|
// tags for inner block must be indented.
|
|
// </div>
|
|
// </div>
|
|
//
|
|
// The outermost tags must start at the left margin for this to match, and
|
|
// the inner nested divs must be indented.
|
|
// We need to do this before the next, more liberal match, because the next
|
|
// match will start at the first `<div>` and stop at the first `</div>`.
|
|
|
|
// attacklab: This regex can be expensive when it fails.
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // save in $1
|
|
^ // start of line (with /m)
|
|
<($block_tags_a) // start tag = $2
|
|
\b // word break
|
|
// attacklab: hack around khtml/pcre bug...
|
|
[^\r]*?\n // any number of lines, minimally matching
|
|
</\2> // the matching end tag
|
|
[ \t]* // trailing spaces/tabs
|
|
(?=\n+) // followed by a newline
|
|
) // attacklab: there are sentinel newlines at end of document
|
|
/gm,function(){...}};
|
|
*/
|
|
text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm, hashElement);
|
|
|
|
//
|
|
// Now match more liberally, simply from `\n<tag>` to `</tag>\n`
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // save in $1
|
|
^ // start of line (with /m)
|
|
<($block_tags_b) // start tag = $2
|
|
\b // word break
|
|
// attacklab: hack around khtml/pcre bug...
|
|
[^\r]*? // any number of lines, minimally matching
|
|
.*</\2> // the matching end tag
|
|
[ \t]* // trailing spaces/tabs
|
|
(?=\n+) // followed by a newline
|
|
) // attacklab: there are sentinel newlines at end of document
|
|
/gm,function(){...}};
|
|
*/
|
|
text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm, hashElement);
|
|
|
|
// Special case just for <hr />. It was easier to make a special case than
|
|
// to make the other regex more complicated.
|
|
|
|
/*
|
|
text = text.replace(/
|
|
\n // Starting after a blank line
|
|
[ ]{0,3}
|
|
( // save in $1
|
|
(<(hr) // start tag = $2
|
|
\b // word break
|
|
([^<>])*?
|
|
\/?>) // the matching end tag
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/\n[ ]{0,3}((<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
// Special case for standalone HTML comments:
|
|
|
|
/*
|
|
text = text.replace(/
|
|
\n\n // Starting after a blank line
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
( // save in $1
|
|
<!
|
|
(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--) // see http://www.w3.org/TR/html-markup/syntax.html#comments and http://meta.stackoverflow.com/q/95256
|
|
>
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/\n\n[ ]{0,3}(<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
// PHP and ASP-style processor instructions (<?...?> and <%...%>)
|
|
|
|
/*
|
|
text = text.replace(/
|
|
(?:
|
|
\n\n // Starting after a blank line
|
|
)
|
|
( // save in $1
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
(?:
|
|
<([?%]) // $2
|
|
[^\r]*?
|
|
\2>
|
|
)
|
|
[ \t]*
|
|
(?=\n{2,}) // followed by a blank line
|
|
)
|
|
/g,hashElement);
|
|
*/
|
|
text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, hashElement);
|
|
|
|
return text;
|
|
}
|
|
|
|
function hashElement(wholeMatch, m1) {
|
|
var blockText = m1;
|
|
|
|
// Undo double lines
|
|
blockText = blockText.replace(/^\n+/, "");
|
|
|
|
// strip trailing blank lines
|
|
blockText = blockText.replace(/\n+$/g, "");
|
|
|
|
// Replace the element text with a marker ("~KxK" where x is its key)
|
|
blockText = "\n\n~K" + (g_html_blocks.push(blockText) - 1) + "K\n\n";
|
|
|
|
return blockText;
|
|
}
|
|
|
|
var blockGamutHookCallback = function (t) { return _RunBlockGamut(t); }
|
|
|
|
function _RunBlockGamut(text, doNotUnhash) {
|
|
//
|
|
// These are all the transformations that form block-level
|
|
// tags like paragraphs, headers, and list items.
|
|
//
|
|
|
|
text = pluginHooks.preBlockGamut(text, blockGamutHookCallback);
|
|
|
|
text = _DoHeaders(text);
|
|
|
|
// Do Horizontal Rules:
|
|
var replacement = "<hr />\n";
|
|
text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, replacement);
|
|
text = text.replace(/^[ ]{0,2}([ ]?-[ ]?){3,}[ \t]*$/gm, replacement);
|
|
text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm, replacement);
|
|
|
|
text = _DoLists(text);
|
|
text = _DoCodeBlocks(text);
|
|
text = _DoBlockQuotes(text);
|
|
|
|
text = pluginHooks.postBlockGamut(text, blockGamutHookCallback);
|
|
|
|
// We already ran _HashHTMLBlocks() before, in Markdown(), but that
|
|
// was to escape raw HTML in the original Markdown source. This time,
|
|
// we're escaping the markup we've just created, so that we don't wrap
|
|
// <p> tags around block-level tags.
|
|
text = _HashHTMLBlocks(text);
|
|
text = _FormParagraphs(text, doNotUnhash);
|
|
|
|
return text;
|
|
}
|
|
|
|
function _RunSpanGamut(text) {
|
|
//
|
|
// These are all the transformations that occur *within* block-level
|
|
// tags like paragraphs, headers, and list items.
|
|
//
|
|
|
|
text = pluginHooks.preSpanGamut(text);
|
|
|
|
text = _DoCodeSpans(text);
|
|
text = _EscapeSpecialCharsWithinTagAttributes(text);
|
|
text = _EncodeBackslashEscapes(text);
|
|
|
|
// Process anchor and image tags. Images must come first,
|
|
// because ![foo][f] looks like an anchor.
|
|
text = _DoImages(text);
|
|
text = _DoAnchors(text);
|
|
|
|
// Make links out of things like `<http://example.com/>`
|
|
// Must come after _DoAnchors(), because you can use < and >
|
|
// delimiters in inline links like [this](<url>).
|
|
text = _DoAutoLinks(text);
|
|
|
|
text = text.replace(/~P/g, "://"); // put in place to prevent autolinking; reset now
|
|
|
|
text = _EncodeAmpsAndAngles(text);
|
|
text = _DoItalicsAndBold(text);
|
|
|
|
// Do hard breaks:
|
|
text = text.replace(/ +\n/g, " <br>\n");
|
|
|
|
text = pluginHooks.postSpanGamut(text);
|
|
|
|
return text;
|
|
}
|
|
|
|
function _EscapeSpecialCharsWithinTagAttributes(text) {
|
|
//
|
|
// Within tags -- meaning between < and > -- encode [\ ` * _] so they
|
|
// don't conflict with their use in Markdown for code, italics and strong.
|
|
//
|
|
|
|
// Build a regex to find HTML tags and comments. See Friedl's
|
|
// "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
|
|
|
|
// SE: changed the comment part of the regex
|
|
|
|
var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>)/gi;
|
|
|
|
text = text.replace(regex, function (wholeMatch) {
|
|
var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, "$1`");
|
|
tag = escapeCharacters(tag, wholeMatch.charAt(1) == "!" ? "\\`*_/" : "\\`*_"); // also escape slashes in comments to prevent autolinking there -- http://meta.stackoverflow.com/questions/95987
|
|
return tag;
|
|
});
|
|
|
|
return text;
|
|
}
|
|
|
|
function _DoAnchors(text) {
|
|
//
|
|
// Turn Markdown link shortcuts into XHTML <a> tags.
|
|
//
|
|
//
|
|
// First, handle reference-style links: [link text] [id]
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[] // or anything else
|
|
)*
|
|
)
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)
|
|
()()()() // pad remaining backreferences
|
|
/g, writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g, writeAnchorTag);
|
|
|
|
//
|
|
// Next, inline-style links: [link text](url "optional title")
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
(
|
|
(?:
|
|
\[[^\]]*\] // allow brackets nested one level
|
|
|
|
|
[^\[\]] // or anything else
|
|
)*
|
|
)
|
|
\]
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?( // href = $4
|
|
(?:
|
|
\([^)]*\) // allow one level of (correctly nested) parens (think MSDN)
|
|
|
|
|
[^()\s]
|
|
)*?
|
|
)>?
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // Title = $7
|
|
\6 // matching quote
|
|
[ \t]* // ignore any spaces/tabs between closing quote and )
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g, writeAnchorTag);
|
|
*/
|
|
|
|
text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?((?:\([^)]*\)|[^()\s])*?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeAnchorTag);
|
|
|
|
//
|
|
// Last, handle reference-style shortcuts: [link text]
|
|
// These must come last in case you've also got [link test][1]
|
|
// or [link test](/foo)
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
\[
|
|
([^\[\]]+) // link text = $2; can't contain '[' or ']'
|
|
\]
|
|
)
|
|
()()()()() // pad rest of backreferences
|
|
/g, writeAnchorTag);
|
|
*/
|
|
text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
|
|
|
|
return text;
|
|
}
|
|
|
|
function writeAnchorTag(wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
|
|
if (m7 == undefined) m7 = "";
|
|
var whole_match = m1;
|
|
var link_text = m2.replace(/:\/\//g, "~P"); // to prevent auto-linking withing the link. will be converted back after the auto-linker runs
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
|
|
if (url == "") {
|
|
if (link_id == "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = link_text.toLowerCase().replace(/ ?\n/g, " ");
|
|
}
|
|
url = "#" + link_id;
|
|
|
|
if (g_urls.get(link_id) != undefined) {
|
|
url = g_urls.get(link_id);
|
|
if (g_titles.get(link_id) != undefined) {
|
|
title = g_titles.get(link_id);
|
|
}
|
|
}
|
|
else {
|
|
if (whole_match.search(/\(\s*\)$/m) > -1) {
|
|
// Special case for explicit empty url
|
|
url = "";
|
|
} else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
}
|
|
url = encodeProblemUrlChars(url);
|
|
url = escapeCharacters(url, "*_");
|
|
var result = "<a href=\"" + url + "\"";
|
|
|
|
if (title != "") {
|
|
title = attributeEncode(title);
|
|
title = escapeCharacters(title, "*_");
|
|
result += " title=\"" + title + "\"";
|
|
}
|
|
|
|
result += ">" + link_text + "</a>";
|
|
|
|
return result;
|
|
}
|
|
|
|
function _DoImages(text) {
|
|
//
|
|
// Turn Markdown image shortcuts into <img> tags.
|
|
//
|
|
|
|
//
|
|
// First, handle reference-style labeled images: ![alt text][id]
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
|
|
[ ]? // one optional space
|
|
(?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
|
\[
|
|
(.*?) // id = $3
|
|
\]
|
|
)
|
|
()()()() // pad rest of backreferences
|
|
/g, writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g, writeImageTag);
|
|
|
|
//
|
|
// Next, handle inline images: 
|
|
// Don't forget: encode * and _
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // wrap whole match in $1
|
|
!\[
|
|
(.*?) // alt text = $2
|
|
\]
|
|
\s? // One optional whitespace character
|
|
\( // literal paren
|
|
[ \t]*
|
|
() // no id, so leave $3 empty
|
|
<?(\S+?)>? // src url = $4
|
|
[ \t]*
|
|
( // $5
|
|
(['"]) // quote char = $6
|
|
(.*?) // title = $7
|
|
\6 // matching quote
|
|
[ \t]*
|
|
)? // title is optional
|
|
\)
|
|
)
|
|
/g, writeImageTag);
|
|
*/
|
|
text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeImageTag);
|
|
|
|
return text;
|
|
}
|
|
|
|
function attributeEncode(text) {
|
|
// unconditionally replace angle brackets here -- what ends up in an attribute (e.g. alt or title)
|
|
// never makes sense to have verbatim HTML in it (and the sanitizer would totally break it)
|
|
return text.replace(/>/g, ">").replace(/</g, "<").replace(/"/g, """);
|
|
}
|
|
|
|
function writeImageTag(wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
|
|
var whole_match = m1;
|
|
var alt_text = m2;
|
|
var link_id = m3.toLowerCase();
|
|
var url = m4;
|
|
var title = m7;
|
|
|
|
if (!title) title = "";
|
|
|
|
if (url == "") {
|
|
if (link_id == "") {
|
|
// lower-case and turn embedded newlines into spaces
|
|
link_id = alt_text.toLowerCase().replace(/ ?\n/g, " ");
|
|
}
|
|
url = "#" + link_id;
|
|
|
|
if (g_urls.get(link_id) != undefined) {
|
|
url = g_urls.get(link_id);
|
|
if (g_titles.get(link_id) != undefined) {
|
|
title = g_titles.get(link_id);
|
|
}
|
|
}
|
|
else {
|
|
return whole_match;
|
|
}
|
|
}
|
|
|
|
alt_text = escapeCharacters(attributeEncode(alt_text), "*_[]()");
|
|
url = escapeCharacters(url, "*_");
|
|
var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
|
|
|
|
// attacklab: Markdown.pl adds empty title attributes to images.
|
|
// Replicate this bug.
|
|
|
|
//if (title != "") {
|
|
title = attributeEncode(title);
|
|
title = escapeCharacters(title, "*_");
|
|
result += " title=\"" + title + "\"";
|
|
//}
|
|
|
|
result += " />";
|
|
|
|
return result;
|
|
}
|
|
|
|
function _DoHeaders(text) {
|
|
|
|
// Setext-style headers:
|
|
// Header 1
|
|
// ========
|
|
//
|
|
// Header 2
|
|
// --------
|
|
//
|
|
text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
|
|
function (wholeMatch, m1) { return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n"; }
|
|
);
|
|
|
|
text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
|
|
function (matchFound, m1) { return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n"; }
|
|
);
|
|
|
|
// atx-style headers:
|
|
// # Header 1
|
|
// ## Header 2
|
|
// ## Header 2 with closing hashes ##
|
|
// ...
|
|
// ###### Header 6
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
^(\#{1,6}) // $1 = string of #'s
|
|
[ \t]*
|
|
(.+?) // $2 = Header text
|
|
[ \t]*
|
|
\#* // optional closing #'s (not counted)
|
|
\n+
|
|
/gm, function() {...});
|
|
*/
|
|
|
|
text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
|
|
function (wholeMatch, m1, m2) {
|
|
var h_level = m1.length;
|
|
return "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
|
|
}
|
|
);
|
|
|
|
return text;
|
|
}
|
|
|
|
function _DoLists(text) {
|
|
//
|
|
// Form HTML ordered (numbered) and unordered (bulleted) lists.
|
|
//
|
|
|
|
// attacklab: add sentinel to hack around khtml/safari bug:
|
|
// http://bugs.webkit.org/show_bug.cgi?id=11231
|
|
text += "~0";
|
|
|
|
// Re-usable pattern to match any entirel ul or ol list:
|
|
|
|
/*
|
|
var whole_list = /
|
|
( // $1 = whole list
|
|
( // $2
|
|
[ ]{0,3} // attacklab: g_tab_width - 1
|
|
([*+-]|\d+[.]) // $3 = first list item marker
|
|
[ \t]+
|
|
)
|
|
[^\r]+?
|
|
( // $4
|
|
~0 // sentinel for workaround; should be $
|
|
|
|
|
\n{2,}
|
|
(?=\S)
|
|
(?! // Negative lookahead for another list item marker
|
|
[ \t]*
|
|
(?:[*+-]|\d+[.])[ \t]+
|
|
)
|
|
)
|
|
)
|
|
/g
|
|
*/
|
|
var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
|
|
|
|
if (g_list_level) {
|
|
text = text.replace(whole_list, function (wholeMatch, m1, m2) {
|
|
var list = m1;
|
|
var list_type = (m2.search(/[*+-]/g) > -1) ? "ul" : "ol";
|
|
|
|
var result = _ProcessListItems(list, list_type);
|
|
|
|
// Trim any trailing whitespace, to put the closing `</$list_type>`
|
|
// up on the preceding line, to get it past the current stupid
|
|
// HTML block parser. This is a hack to work around the terrible
|
|
// hack that is the HTML block parser.
|
|
result = result.replace(/\s+$/, "");
|
|
result = "<" + list_type + ">" + result + "</" + list_type + ">\n";
|
|
return result;
|
|
});
|
|
} else {
|
|
whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
|
|
text = text.replace(whole_list, function (wholeMatch, m1, m2, m3) {
|
|
var runup = m1;
|
|
var list = m2;
|
|
|
|
var list_type = (m3.search(/[*+-]/g) > -1) ? "ul" : "ol";
|
|
var result = _ProcessListItems(list, list_type);
|
|
result = runup + "<" + list_type + ">\n" + result + "</" + list_type + ">\n";
|
|
return result;
|
|
});
|
|
}
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/, "");
|
|
|
|
return text;
|
|
}
|
|
|
|
var _listItemMarkers = { ol: "\\d+[.]", ul: "[*+-]" };
|
|
|
|
function _ProcessListItems(list_str, list_type) {
|
|
//
|
|
// Process the contents of a single ordered or unordered list, splitting it
|
|
// into individual list items.
|
|
//
|
|
// list_type is either "ul" or "ol".
|
|
|
|
// The $g_list_level global keeps track of when we're inside a list.
|
|
// Each time we enter a list, we increment it; when we leave a list,
|
|
// we decrement. If it's zero, we're not in a list anymore.
|
|
//
|
|
// We do this because when we're not inside a list, we want to treat
|
|
// something like this:
|
|
//
|
|
// I recommend upgrading to version
|
|
// 8. Oops, now this line is treated
|
|
// as a sub-list.
|
|
//
|
|
// As a single paragraph, despite the fact that the second line starts
|
|
// with a digit-period-space sequence.
|
|
//
|
|
// Whereas when we're inside a list (or sub-list), that line will be
|
|
// treated as the start of a sub-list. What a kludge, huh? This is
|
|
// an aspect of Markdown's syntax that's hard to parse perfectly
|
|
// without resorting to mind-reading. Perhaps the solution is to
|
|
// change the syntax rules such that sub-lists must start with a
|
|
// starting cardinal number; e.g. "1." or "a.".
|
|
|
|
g_list_level++;
|
|
|
|
// trim trailing blank lines:
|
|
list_str = list_str.replace(/\n{2,}$/, "\n");
|
|
|
|
// attacklab: add sentinel to emulate \z
|
|
list_str += "~0";
|
|
|
|
// In the original attacklab showdown, list_type was not given to this function, and anything
|
|
// that matched /[*+-]|\d+[.]/ would just create the next <li>, causing this mismatch:
|
|
//
|
|
// Markdown rendered by WMD rendered by MarkdownSharp
|
|
// ------------------------------------------------------------------
|
|
// 1. first 1. first 1. first
|
|
// 2. second 2. second 2. second
|
|
// - third 3. third * third
|
|
//
|
|
// We changed this to behave identical to MarkdownSharp. This is the constructed RegEx,
|
|
// with {MARKER} being one of \d+[.] or [*+-], depending on list_type:
|
|
|
|
/*
|
|
list_str = list_str.replace(/
|
|
(^[ \t]*) // leading whitespace = $1
|
|
({MARKER}) [ \t]+ // list marker = $2
|
|
([^\r]+? // list item text = $3
|
|
(\n+)
|
|
)
|
|
(?=
|
|
(~0 | \2 ({MARKER}) [ \t]+)
|
|
)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
var marker = _listItemMarkers[list_type];
|
|
var re = new RegExp("(^[ \\t]*)(" + marker + ")[ \\t]+([^\\r]+?(\\n+))(?=(~0|\\1(" + marker + ")[ \\t]+))", "gm");
|
|
var last_item_had_a_double_newline = false;
|
|
list_str = list_str.replace(re,
|
|
function (wholeMatch, m1, m2, m3) {
|
|
var item = m3;
|
|
var leading_space = m1;
|
|
var ends_with_double_newline = /\n\n$/.test(item);
|
|
var contains_double_newline = ends_with_double_newline || item.search(/\n{2,}/) > -1;
|
|
|
|
if (contains_double_newline || last_item_had_a_double_newline) {
|
|
item = _RunBlockGamut(_Outdent(item), /* doNotUnhash = */true);
|
|
}
|
|
else {
|
|
// Recursion for sub-lists:
|
|
item = _DoLists(_Outdent(item));
|
|
item = item.replace(/\n$/, ""); // chomp(item)
|
|
item = _RunSpanGamut(item);
|
|
}
|
|
last_item_had_a_double_newline = ends_with_double_newline;
|
|
return "<li>" + item + "</li>\n";
|
|
}
|
|
);
|
|
|
|
// attacklab: strip sentinel
|
|
list_str = list_str.replace(/~0/g, "");
|
|
|
|
g_list_level--;
|
|
return list_str;
|
|
}
|
|
|
|
function _DoCodeBlocks(text) {
|
|
//
|
|
// Process Markdown `<pre><code>` blocks.
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
(?:\n\n|^)
|
|
( // $1 = the code block -- one or more lines, starting with a space/tab
|
|
(?:
|
|
(?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
|
|
.*\n+
|
|
)+
|
|
)
|
|
(\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width
|
|
/g ,function(){...});
|
|
*/
|
|
|
|
// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
text += "~0";
|
|
|
|
text = text.replace(/(?:\n\n|^\n?)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
|
|
function (wholeMatch, m1, m2) {
|
|
var codeblock = m1;
|
|
var nextChar = m2;
|
|
|
|
codeblock = _EncodeCode(_Outdent(codeblock));
|
|
codeblock = _Detab(codeblock);
|
|
codeblock = codeblock.replace(/^\n+/g, ""); // trim leading newlines
|
|
codeblock = codeblock.replace(/\n+$/g, ""); // trim trailing whitespace
|
|
|
|
codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
|
|
|
|
return "\n\n" + codeblock + "\n\n" + nextChar;
|
|
}
|
|
);
|
|
|
|
// attacklab: strip sentinel
|
|
text = text.replace(/~0/, "");
|
|
|
|
return text;
|
|
}
|
|
|
|
function hashBlock(text) {
|
|
text = text.replace(/(^\n+|\n+$)/g, "");
|
|
return "\n\n~K" + (g_html_blocks.push(text) - 1) + "K\n\n";
|
|
}
|
|
|
|
function _DoCodeSpans(text) {
|
|
//
|
|
// * Backtick quotes are used for <code></code> spans.
|
|
//
|
|
// * You can use multiple backticks as the delimiters if you want to
|
|
// include literal backticks in the code span. So, this input:
|
|
//
|
|
// Just type ``foo `bar` baz`` at the prompt.
|
|
//
|
|
// Will translate to:
|
|
//
|
|
// <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
|
|
//
|
|
// There's no arbitrary limit to the number of backticks you
|
|
// can use as delimters. If you need three consecutive backticks
|
|
// in your code, use four for delimiters, etc.
|
|
//
|
|
// * You can use spaces to get literal backticks at the edges:
|
|
//
|
|
// ... type `` `bar` `` ...
|
|
//
|
|
// Turns to:
|
|
//
|
|
// ... type <code>`bar`</code> ...
|
|
//
|
|
|
|
/*
|
|
text = text.replace(/
|
|
(^|[^\\]) // Character before opening ` can't be a backslash
|
|
(`+) // $2 = Opening run of `
|
|
( // $3 = The code block
|
|
[^\r]*?
|
|
[^`] // attacklab: work around lack of lookbehind
|
|
)
|
|
\2 // Matching closer
|
|
(?!`)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
|
|
function (wholeMatch, m1, m2, m3, m4) {
|
|
var c = m3;
|
|
c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
|
|
c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
|
|
c = _EncodeCode(c);
|
|
c = c.replace(/:\/\//g, "~P"); // to prevent auto-linking. Not necessary in code *blocks*, but in code spans. Will be converted back after the auto-linker runs.
|
|
return m1 + "<code>" + c + "</code>";
|
|
}
|
|
);
|
|
|
|
return text;
|
|
}
|
|
|
|
function _EncodeCode(text) {
|
|
//
|
|
// Encode/escape certain characters inside Markdown code runs.
|
|
// The point is that in code, these characters are literals,
|
|
// and lose their special Markdown meanings.
|
|
//
|
|
// Encode all ampersands; HTML entities are not
|
|
// entities within a Markdown code span.
|
|
text = text.replace(/&/g, "&");
|
|
|
|
// Do the angle bracket song and dance:
|
|
text = text.replace(/</g, "<");
|
|
text = text.replace(/>/g, ">");
|
|
|
|
// Now, escape characters that are magic in Markdown:
|
|
text = escapeCharacters(text, "\*_{}[]\\", false);
|
|
|
|
// jj the line above breaks this:
|
|
//---
|
|
|
|
//* Item
|
|
|
|
// 1. Subitem
|
|
|
|
// special char: *
|
|
//---
|
|
|
|
return text;
|
|
}
|
|
|
|
function _DoItalicsAndBold(text) {
|
|
|
|
// <strong> must go first:
|
|
text = text.replace(/([\W_]|^)(\*\*|__)(?=\S)([^\r]*?\S[\*_]*)\2([\W_]|$)/g,
|
|
"$1<strong>$3</strong>$4");
|
|
|
|
text = text.replace(/([\W_]|^)(\*|_)(?=\S)([^\r\*_]*?\S)\2([\W_]|$)/g,
|
|
"$1<em>$3</em>$4");
|
|
|
|
return text;
|
|
}
|
|
|
|
function _DoBlockQuotes(text) {
|
|
|
|
/*
|
|
text = text.replace(/
|
|
( // Wrap whole match in $1
|
|
(
|
|
^[ \t]*>[ \t]? // '>' at the start of a line
|
|
.+\n // rest of the first line
|
|
(.+\n)* // subsequent consecutive lines
|
|
\n* // blanks
|
|
)+
|
|
)
|
|
/gm, function(){...});
|
|
*/
|
|
|
|
text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
|
|
function (wholeMatch, m1) {
|
|
var bq = m1;
|
|
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
|
|
bq = bq.replace(/^[ \t]*>[ \t]?/gm, "~0"); // trim one level of quoting
|
|
|
|
// attacklab: clean up hack
|
|
bq = bq.replace(/~0/g, "");
|
|
|
|
bq = bq.replace(/^[ \t]+$/gm, ""); // trim whitespace-only lines
|
|
bq = _RunBlockGamut(bq); // recurse
|
|
|
|
bq = bq.replace(/(^|\n)/g, "$1 ");
|
|
// These leading spaces screw with <pre> content, so we need to fix that:
|
|
bq = bq.replace(
|
|
/(\s*<pre>[^\r]+?<\/pre>)/gm,
|
|
function (wholeMatch, m1) {
|
|
var pre = m1;
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
pre = pre.replace(/^ /mg, "~0");
|
|
pre = pre.replace(/~0/g, "");
|
|
return pre;
|
|
});
|
|
|
|
return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
|
|
}
|
|
);
|
|
return text;
|
|
}
|
|
|
|
function _FormParagraphs(text, doNotUnhash) {
|
|
//
|
|
// Params:
|
|
// $text - string to process with html <p> tags
|
|
//
|
|
|
|
// Strip leading and trailing lines:
|
|
text = text.replace(/^\n+/g, "");
|
|
text = text.replace(/\n+$/g, "");
|
|
|
|
var grafs = text.split(/\n{2,}/g);
|
|
var grafsOut = [];
|
|
|
|
var markerRe = /~K(\d+)K/;
|
|
|
|
//
|
|
// Wrap <p> tags.
|
|
//
|
|
var end = grafs.length;
|
|
for (var i = 0; i < end; i++) {
|
|
var str = grafs[i];
|
|
|
|
// if this is an HTML marker, copy it
|
|
if (markerRe.test(str)) {
|
|
grafsOut.push(str);
|
|
}
|
|
else if (/\S/.test(str)) {
|
|
str = _RunSpanGamut(str);
|
|
str = str.replace(/^([ \t]*)/g, "<p>");
|
|
str += "</p>"
|
|
grafsOut.push(str);
|
|
}
|
|
|
|
}
|
|
//
|
|
// Unhashify HTML blocks
|
|
//
|
|
if (!doNotUnhash) {
|
|
end = grafsOut.length;
|
|
for (var i = 0; i < end; i++) {
|
|
var foundAny = true;
|
|
while (foundAny) { // we may need several runs, since the data may be nested
|
|
foundAny = false;
|
|
grafsOut[i] = grafsOut[i].replace(/~K(\d+)K/g, function (wholeMatch, id) {
|
|
foundAny = true;
|
|
return g_html_blocks[id];
|
|
});
|
|
}
|
|
}
|
|
}
|
|
return grafsOut.join("\n\n");
|
|
}
|
|
|
|
function _EncodeAmpsAndAngles(text) {
|
|
// Smart processing for ampersands and angle brackets that need to be encoded.
|
|
|
|
// Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
|
|
// http://bumppo.net/projects/amputator/
|
|
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, "&");
|
|
|
|
// Encode naked <'s
|
|
text = text.replace(/<(?![a-z\/?!]|~D)/gi, "<");
|
|
|
|
return text;
|
|
}
|
|
|
|
function _EncodeBackslashEscapes(text) {
|
|
//
|
|
// Parameter: String.
|
|
// Returns: The string, with after processing the following backslash
|
|
// escape sequences.
|
|
//
|
|
|
|
// attacklab: The polite way to do this is with the new
|
|
// escapeCharacters() function:
|
|
//
|
|
// text = escapeCharacters(text,"\\",true);
|
|
// text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
|
|
//
|
|
// ...but we're sidestepping its use of the (slow) RegExp constructor
|
|
// as an optimization for Firefox. This function gets called a LOT.
|
|
|
|
text = text.replace(/\\(\\)/g, escapeCharacters_callback);
|
|
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, escapeCharacters_callback);
|
|
return text;
|
|
}
|
|
|
|
function handleTrailingParens(wholeMatch, lookbehind, protocol, link) {
|
|
if (lookbehind)
|
|
return wholeMatch;
|
|
if (link.charAt(link.length - 1) !== ")")
|
|
return "<" + protocol + link + ">";
|
|
var parens = link.match(/[()]/g);
|
|
var level = 0;
|
|
for (var i = 0; i < parens.length; i++) {
|
|
if (parens[i] === "(") {
|
|
if (level <= 0)
|
|
level = 1;
|
|
else
|
|
level++;
|
|
}
|
|
else {
|
|
level--;
|
|
}
|
|
}
|
|
var tail = "";
|
|
if (level < 0) {
|
|
var re = new RegExp("\\){1," + (-level) + "}$");
|
|
link = link.replace(re, function (trailingParens) {
|
|
tail = trailingParens;
|
|
return "";
|
|
});
|
|
}
|
|
|
|
return "<" + protocol + link + ">" + tail;
|
|
}
|
|
|
|
function _DoAutoLinks(text) {
|
|
|
|
// note that at this point, all other URL in the text are already hyperlinked as <a href=""></a>
|
|
// *except* for the <http://www.foo.com> case
|
|
|
|
// automatically add < and > around unadorned raw hyperlinks
|
|
// must be preceded by a non-word character (and not by =" or <) and followed by non-word/EOF character
|
|
// simulating the lookbehind in a consuming way is okay here, since a URL can neither and with a " nor
|
|
// with a <, so there is no risk of overlapping matches.
|
|
text = text.replace(/(="|<)?\b(https?|ftp)(:\/\/[-A-Z0-9+&@#\/%?=~_|\[\]\(\)!:,\.;]*[-A-Z0-9+&@#\/%=~_|\[\])])(?=$|\W)/gi, handleTrailingParens);
|
|
|
|
// autolink anything like <http://example.com>
|
|
|
|
var replacer = function (wholematch, m1) { return "<a href=\"" + m1 + "\">" + pluginHooks.plainLinkText(m1) + "</a>"; }
|
|
text = text.replace(/<((https?|ftp):[^'">\s]+)>/gi, replacer);
|
|
|
|
// Email addresses: <address@domain.foo>
|
|
/*
|
|
text = text.replace(/
|
|
<
|
|
(?:mailto:)?
|
|
(
|
|
[-.\w]+
|
|
\@
|
|
[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
|
|
)
|
|
>
|
|
/gi, _DoAutoLinks_callback());
|
|
*/
|
|
|
|
/* disabling email autolinking, since we don't do that on the server, either
|
|
text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
|
|
function(wholeMatch,m1) {
|
|
return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
|
|
}
|
|
);
|
|
*/
|
|
return text;
|
|
}
|
|
|
|
function _UnescapeSpecialChars(text) {
|
|
//
|
|
// Swap back in all the special characters we've hidden.
|
|
//
|
|
text = text.replace(/~E(\d+)E/g,
|
|
function (wholeMatch, m1) {
|
|
var charCodeToReplace = parseInt(m1);
|
|
return String.fromCharCode(charCodeToReplace);
|
|
}
|
|
);
|
|
return text;
|
|
}
|
|
|
|
function _Outdent(text) {
|
|
//
|
|
// Remove one level of line-leading tabs or spaces
|
|
//
|
|
|
|
// attacklab: hack around Konqueror 3.5.4 bug:
|
|
// "----------bug".replace(/^-/g,"") == "bug"
|
|
|
|
text = text.replace(/^(\t|[ ]{1,4})/gm, "~0"); // attacklab: g_tab_width
|
|
|
|
// attacklab: clean up hack
|
|
text = text.replace(/~0/g, "")
|
|
|
|
return text;
|
|
}
|
|
|
|
function _Detab(text) {
|
|
if (!/\t/.test(text))
|
|
return text;
|
|
|
|
var spaces = [" ", " ", " ", " "],
|
|
skew = 0,
|
|
v;
|
|
|
|
return text.replace(/[\n\t]/g, function (match, offset) {
|
|
if (match === "\n") {
|
|
skew = offset + 1;
|
|
return match;
|
|
}
|
|
v = (offset - skew) % 4;
|
|
skew = offset + 1;
|
|
return spaces[v];
|
|
});
|
|
}
|
|
|
|
//
|
|
// attacklab: Utility functions
|
|
//
|
|
|
|
var _problemUrlChars = /(?:["'*()[\]:]|~D)/g;
|
|
|
|
// hex-encodes some unusual "problem" chars in URLs to avoid URL detection problems
|
|
function encodeProblemUrlChars(url) {
|
|
if (!url)
|
|
return "";
|
|
|
|
var len = url.length;
|
|
|
|
return url.replace(_problemUrlChars, function (match, offset) {
|
|
if (match == "~D") // escape for dollar
|
|
return "%24";
|
|
if (match == ":") {
|
|
if (offset == len - 1 || /[0-9\/]/.test(url.charAt(offset + 1)))
|
|
return ":"
|
|
}
|
|
return "%" + match.charCodeAt(0).toString(16);
|
|
});
|
|
}
|
|
|
|
|
|
function escapeCharacters(text, charsToEscape, afterBackslash) {
|
|
// First we have to escape the escape characters so that
|
|
// we can build a character class out of them
|
|
var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g, "\\$1") + "])";
|
|
|
|
if (afterBackslash) {
|
|
regexString = "\\\\" + regexString;
|
|
}
|
|
|
|
var regex = new RegExp(regexString, "g");
|
|
text = text.replace(regex, escapeCharacters_callback);
|
|
|
|
return text;
|
|
}
|
|
|
|
|
|
function escapeCharacters_callback(wholeMatch, m1) {
|
|
var charCodeToEscape = m1.charCodeAt(0);
|
|
return "~E" + charCodeToEscape + "E";
|
|
}
|
|
|
|
}; // end of the Markdown.Converter constructor
|
|
|
|
})();
|
|
|
|
(function () {
|
|
var output, Converter;
|
|
if (typeof exports === "object" && typeof require === "function") { // we're in a CommonJS (e.g. Node.js) module
|
|
output = exports;
|
|
Converter = require("./Markdown.Converter").Converter;
|
|
} else {
|
|
output = window.Markdown;
|
|
Converter = output.Converter;
|
|
}
|
|
|
|
output.getSanitizingConverter = function () {
|
|
var converter = new Converter();
|
|
converter.hooks.chain("postConversion", sanitizeHtml);
|
|
converter.hooks.chain("postConversion", balanceTags);
|
|
return converter;
|
|
}
|
|
|
|
function sanitizeHtml(html) {
|
|
return html.replace(/<[^>]*>?/gi, sanitizeTag);
|
|
}
|
|
|
|
// (tags that can be opened/closed) | (tags that stand alone)
|
|
var basic_tag_whitelist = /^(<\/?(b|blockquote|code|del|dd|dl|dt|em|h1|h2|h3|i|kbd|li|ol|p|pre|s|sup|sub|strong|strike|ul)>|<(br|hr)\s?\/?>)$/i;
|
|
// <a href="url..." optional title>|</a>
|
|
var a_white = /^(<a\shref="((https?|ftp):\/\/|\/)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+"(\stitle="[^"<>]+")?\s?>|<\/a>)$/i;
|
|
|
|
// <img src="url..." optional width optional height optional alt optional title
|
|
var img_white = /^(<img\ssrc="(https?:\/\/|\/)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+"(\swidth="\d{1,3}")?(\sheight="\d{1,3}")?(\salt="[^"<>]*")?(\stitle="[^"<>]*")?\s?\/?>)$/i;
|
|
|
|
function sanitizeTag(tag) {
|
|
if (tag.match(basic_tag_whitelist) || tag.match(a_white) || tag.match(img_white))
|
|
return tag;
|
|
else
|
|
return "";
|
|
}
|
|
|
|
/// <summary>
|
|
/// attempt to balance HTML tags in the html string
|
|
/// by removing any unmatched opening or closing tags
|
|
/// IMPORTANT: we *assume* HTML has *already* been
|
|
/// sanitized and is safe/sane before balancing!
|
|
///
|
|
/// adapted from CODESNIPPET: A8591DBA-D1D3-11DE-947C-BA5556D89593
|
|
/// </summary>
|
|
function balanceTags(html) {
|
|
|
|
if (html == "")
|
|
return "";
|
|
|
|
var re = /<\/?\w+[^>]*(\s|$|>)/g;
|
|
// convert everything to lower case; this makes
|
|
// our case insensitive comparisons easier
|
|
var tags = html.toLowerCase().match(re);
|
|
|
|
// no HTML tags present? nothing to do; exit now
|
|
var tagcount = (tags || []).length;
|
|
if (tagcount == 0)
|
|
return html;
|
|
|
|
var tagname, tag;
|
|
var ignoredtags = "<p><img><br><li><hr>";
|
|
var match;
|
|
var tagpaired = [];
|
|
var tagremove = [];
|
|
var needsRemoval = false;
|
|
|
|
// loop through matched tags in forward order
|
|
for (var ctag = 0; ctag < tagcount; ctag++) {
|
|
tagname = tags[ctag].replace(/<\/?(\w+).*/, "$1");
|
|
// skip any already paired tags
|
|
// and skip tags in our ignore list; assume they're self-closed
|
|
if (tagpaired[ctag] || ignoredtags.search("<" + tagname + ">") > -1)
|
|
continue;
|
|
|
|
tag = tags[ctag];
|
|
match = -1;
|
|
|
|
if (!/^<\//.test(tag)) {
|
|
// this is an opening tag
|
|
// search forwards (next tags), look for closing tags
|
|
for (var ntag = ctag + 1; ntag < tagcount; ntag++) {
|
|
if (!tagpaired[ntag] && tags[ntag] == "</" + tagname + ">") {
|
|
match = ntag;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (match == -1)
|
|
needsRemoval = tagremove[ctag] = true; // mark for removal
|
|
else
|
|
tagpaired[match] = true; // mark paired
|
|
}
|
|
|
|
if (!needsRemoval)
|
|
return html;
|
|
|
|
// delete all orphaned tags from the string
|
|
|
|
var ctag = 0;
|
|
html = html.replace(re, function (match) {
|
|
var res = tagremove[ctag] ? "" : match;
|
|
ctag++;
|
|
return res;
|
|
});
|
|
return html;
|
|
}
|
|
})();
|
|
|
|
// needs Markdown.Converter.js at the moment
|
|
|
|
(function () {
|
|
|
|
var util = {},
|
|
position = {},
|
|
ui = {},
|
|
doc = window.document,
|
|
re = window.RegExp,
|
|
nav = window.navigator,
|
|
SETTINGS = { lineLength: 72 },
|
|
|
|
// Used to work around some browser bugs where we can't use feature testing.
|
|
uaSniffed = {
|
|
isIE: /msie/.test(nav.userAgent.toLowerCase()),
|
|
isIE_5or6: /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase()),
|
|
isOpera: /opera/.test(nav.userAgent.toLowerCase())
|
|
};
|
|
|
|
var defaultsStrings = {
|
|
bold: "Strong <strong> Ctrl+B",
|
|
boldexample: "strong text",
|
|
|
|
italic: "Emphasis <em> Ctrl+I",
|
|
italicexample: "emphasized text",
|
|
|
|
link: "Hyperlink <a> Ctrl+L",
|
|
linkdescription: "enter link description here",
|
|
linkdialog: "<p><b>Insert Hyperlink</b></p><p>http://example.com/ \"optional title\"</p>",
|
|
linkname: null,
|
|
|
|
quote: "Blockquote <blockquote> Ctrl+Q",
|
|
quoteexample: "Blockquote",
|
|
|
|
code: "Code Sample <pre><code> Ctrl+K",
|
|
codeexample: "enter code here",
|
|
|
|
image: "Image <img> Ctrl+G",
|
|
imagedescription: "enter image description here",
|
|
imagedialog: "<p><b>Insert Image</b></p><p>http://example.com/images/diagram.jpg \"optional title\"<br>Need <a href='http://www.google.com/search?q=free+image+hosting' target='_blank'>free image hosting?</a></p>",
|
|
imagename: null,
|
|
|
|
olist: "Numbered List <ol> Ctrl+O",
|
|
ulist: "Bulleted List <ul> Ctrl+U",
|
|
litem: "List item",
|
|
|
|
heading: "Heading <h1>/<h2> Ctrl+H",
|
|
headingexample: "Heading",
|
|
more: "More contents <!--more--> Ctrl+M",
|
|
|
|
fullscreen: 'FullScreen Ctrl+J',
|
|
exitFullscreen: 'Exit FullScreen Ctrl+E',
|
|
fullscreenUnsupport: 'Sorry, the browser dont support fullscreen api',
|
|
|
|
hr: "Horizontal Rule <hr> Ctrl+R",
|
|
|
|
undo: "Undo - Ctrl+Z",
|
|
redo: "Redo - Ctrl+Y",
|
|
redomac: "Redo - Ctrl+Shift+Z",
|
|
|
|
ok: "OK",
|
|
cancel: "Cancel",
|
|
|
|
help: "Markdown Editing Help"
|
|
};
|
|
|
|
|
|
// -------------------------------------------------------------------
|
|
// YOUR CHANGES GO HERE
|
|
//
|
|
// I've tried to localize the things you are likely to change to
|
|
// this area.
|
|
// -------------------------------------------------------------------
|
|
|
|
// The default text that appears in the dialog input box when entering
|
|
// links.
|
|
var imageDefaultText = "http://";
|
|
var linkDefaultText = "http://";
|
|
|
|
// -------------------------------------------------------------------
|
|
// END OF YOUR CHANGES
|
|
// -------------------------------------------------------------------
|
|
|
|
// options, if given, can have the following properties:
|
|
// options.helpButton = { handler: yourEventHandler }
|
|
// options.strings = { italicexample: "slanted text" }
|
|
// `yourEventHandler` is the click handler for the help button.
|
|
// If `options.helpButton` isn't given, not help button is created.
|
|
// `options.strings` can have any or all of the same properties as
|
|
// `defaultStrings` above, so you can just override some string displayed
|
|
// to the user on a case-by-case basis, or translate all strings to
|
|
// a different language.
|
|
//
|
|
// For backwards compatibility reasons, the `options` argument can also
|
|
// be just the `helpButton` object, and `strings.help` can also be set via
|
|
// `helpButton.title`. This should be considered legacy.
|
|
//
|
|
// The constructed editor object has the methods:
|
|
// - getConverter() returns the markdown converter object that was passed to the constructor
|
|
// - run() actually starts the editor; should be called after all necessary plugins are registered. Calling this more than once is a no-op.
|
|
// - refreshPreview() forces the preview to be updated. This method is only available after run() was called.
|
|
Markdown.Editor = function (markdownConverter, idPostfix, options) {
|
|
|
|
options = options || {};
|
|
|
|
if (typeof options.handler === "function") { //backwards compatible behavior
|
|
options = { helpButton: options };
|
|
}
|
|
options.strings = options.strings || {};
|
|
if (options.helpButton) {
|
|
options.strings.help = options.strings.help || options.helpButton.title;
|
|
}
|
|
var getString = function (identifier) {
|
|
var string = options.strings[identifier] || defaultsStrings[identifier];
|
|
|
|
if ('imagename' == identifier || 'linkname' == identifier) {
|
|
options.strings[identifier] = null;
|
|
}
|
|
|
|
return string;
|
|
}
|
|
|
|
idPostfix = idPostfix || "";
|
|
|
|
var hooks = this.hooks = new Markdown.HookCollection();
|
|
hooks.addNoop("onPreviewRefresh"); // called with no arguments after the preview has been refreshed
|
|
hooks.addNoop("postBlockquoteCreation"); // called with the user's selection *after* the blockquote was created; should return the actual to-be-inserted text
|
|
hooks.addFalse("insertImageDialog"); /* called with one parameter: a callback to be called with the URL of the image. If the application creates
|
|
* its own image insertion dialog, this hook should return true, and the callback should be called with the chosen
|
|
* image url (or null if the user cancelled). If this hook returns false, the default dialog will be used.
|
|
*/
|
|
hooks.addFalse("insertLinkDialog"); /* called with one parameter: a callback to be called with the URL of the image. If the application creates
|
|
* its own image insertion dialog, this hook should return true, and the callback should be called with the chosen
|
|
* image url (or null if the user cancelled). If this hook returns false, the default dialog will be used.
|
|
*/
|
|
hooks.addNoop("enterFullScreen");
|
|
hooks.addNoop("enterFakeFullScreen");
|
|
hooks.addNoop("exitFullScreen");
|
|
|
|
this.getConverter = function () { return markdownConverter; }
|
|
|
|
var that = this,
|
|
panels;
|
|
|
|
this.run = function () {
|
|
if (panels)
|
|
return; // already initialized
|
|
|
|
panels = new PanelCollection(idPostfix);
|
|
var commandManager = new CommandManager(hooks, getString);
|
|
var previewManager = new PreviewManager(markdownConverter, panels, function () { hooks.onPreviewRefresh(); });
|
|
var undoManager, uiManager;
|
|
|
|
if (!/\?noundo/.test(doc.location.href)) {
|
|
undoManager = new UndoManager(function () {
|
|
previewManager.refresh();
|
|
if (uiManager) // not available on the first call
|
|
uiManager.setUndoRedoButtonStates();
|
|
}, panels);
|
|
this.textOperation = function (f) {
|
|
undoManager.setCommandMode();
|
|
f();
|
|
that.refreshPreview();
|
|
}
|
|
}
|
|
|
|
fullScreenManager = new FullScreenManager(hooks, getString);
|
|
uiManager = new UIManager(idPostfix, panels, undoManager, previewManager, commandManager, fullScreenManager, options.helpButton, getString);
|
|
uiManager.setUndoRedoButtonStates();
|
|
|
|
var forceRefresh = that.refreshPreview = function () { previewManager.refresh(true); };
|
|
|
|
forceRefresh();
|
|
};
|
|
|
|
}
|
|
|
|
// before: contains all the text in the input box BEFORE the selection.
|
|
// after: contains all the text in the input box AFTER the selection.
|
|
function Chunks() { }
|
|
|
|
// startRegex: a regular expression to find the start tag
|
|
// endRegex: a regular expresssion to find the end tag
|
|
Chunks.prototype.findTags = function (startRegex, endRegex) {
|
|
|
|
var chunkObj = this;
|
|
var regex;
|
|
|
|
if (startRegex) {
|
|
|
|
regex = util.extendRegExp(startRegex, "", "$");
|
|
|
|
this.before = this.before.replace(regex,
|
|
function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(startRegex, "^", "");
|
|
|
|
this.selection = this.selection.replace(regex,
|
|
function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
}
|
|
|
|
if (endRegex) {
|
|
|
|
regex = util.extendRegExp(endRegex, "", "$");
|
|
|
|
this.selection = this.selection.replace(regex,
|
|
function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(endRegex, "^", "");
|
|
|
|
this.after = this.after.replace(regex,
|
|
function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
// If remove is false, the whitespace is transferred
|
|
// to the before/after regions.
|
|
//
|
|
// If remove is true, the whitespace disappears.
|
|
Chunks.prototype.trimWhitespace = function (remove) {
|
|
var beforeReplacer, afterReplacer, that = this;
|
|
if (remove) {
|
|
beforeReplacer = afterReplacer = "";
|
|
} else {
|
|
beforeReplacer = function (s) { that.before += s; return ""; }
|
|
afterReplacer = function (s) { that.after = s + that.after; return ""; }
|
|
}
|
|
|
|
this.selection = this.selection.replace(/^(\s*)/, beforeReplacer).replace(/(\s*)$/, afterReplacer);
|
|
};
|
|
|
|
|
|
Chunks.prototype.skipLines = function (nLinesBefore, nLinesAfter, findExtraNewlines) {
|
|
|
|
if (nLinesBefore === undefined) {
|
|
nLinesBefore = 1;
|
|
}
|
|
|
|
if (nLinesAfter === undefined) {
|
|
nLinesAfter = 1;
|
|
}
|
|
|
|
nLinesBefore++;
|
|
nLinesAfter++;
|
|
|
|
var regexText;
|
|
var replacementText;
|
|
|
|
// chrome bug ... documented at: http://meta.stackoverflow.com/questions/63307/blockquote-glitch-in-editor-in-chrome-6-and-7/65985#65985
|
|
if (navigator.userAgent.match(/Chrome/)) {
|
|
"X".match(/()./);
|
|
}
|
|
|
|
this.selection = this.selection.replace(/(^\n*)/, "");
|
|
|
|
this.startTag = this.startTag + re.$1;
|
|
|
|
this.selection = this.selection.replace(/(\n*$)/, "");
|
|
this.endTag = this.endTag + re.$1;
|
|
this.startTag = this.startTag.replace(/(^\n*)/, "");
|
|
this.before = this.before + re.$1;
|
|
this.endTag = this.endTag.replace(/(\n*$)/, "");
|
|
this.after = this.after + re.$1;
|
|
|
|
if (this.before) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesBefore--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
|
|
}
|
|
|
|
if (this.after) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesAfter--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
|
|
this.after = this.after.replace(new re(regexText, ""), replacementText);
|
|
}
|
|
};
|
|
|
|
// end of Chunks
|
|
|
|
// A collection of the important regions on the page.
|
|
// Cached so we don't have to keep traversing the DOM.
|
|
// Also holds ieCachedRange and ieCachedScrollTop, where necessary; working around
|
|
// this issue:
|
|
// Internet explorer has problems with CSS sprite buttons that use HTML
|
|
// lists. When you click on the background image "button", IE will
|
|
// select the non-existent link text and discard the selection in the
|
|
// textarea. The solution to this is to cache the textarea selection
|
|
// on the button's mousedown event and set a flag. In the part of the
|
|
// code where we need to grab the selection, we check for the flag
|
|
// and, if it's set, use the cached area instead of querying the
|
|
// textarea.
|
|
//
|
|
// This ONLY affects Internet Explorer (tested on versions 6, 7
|
|
// and 8) and ONLY on button clicks. Keyboard shortcuts work
|
|
// normally since the focus never leaves the textarea.
|
|
function PanelCollection(postfix) {
|
|
this.buttonBar = doc.getElementById("wmd-button-bar" + postfix);
|
|
this.preview = doc.getElementById("wmd-preview" + postfix);
|
|
this.input = doc.getElementById("text");
|
|
};
|
|
|
|
// Returns true if the DOM element is visible, false if it's hidden.
|
|
// Checks if display is anything other than none.
|
|
util.isVisible = function (elem) {
|
|
|
|
if (window.getComputedStyle) {
|
|
// Most browsers
|
|
return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none";
|
|
}
|
|
else if (elem.currentStyle) {
|
|
// IE
|
|
return elem.currentStyle["display"] !== "none";
|
|
}
|
|
};
|
|
|
|
|
|
// Adds a listener callback to a DOM element which is fired on a specified
|
|
// event.
|
|
util.addEvent = function (elem, event, listener) {
|
|
if (elem.attachEvent) {
|
|
// IE only. The "on" is mandatory.
|
|
elem.attachEvent("on" + event, listener);
|
|
}
|
|
else {
|
|
// Other browsers.
|
|
elem.addEventListener(event, listener, false);
|
|
}
|
|
};
|
|
|
|
|
|
// Removes a listener callback from a DOM element which is fired on a specified
|
|
// event.
|
|
util.removeEvent = function (elem, event, listener) {
|
|
if (elem.detachEvent) {
|
|
// IE only. The "on" is mandatory.
|
|
elem.detachEvent("on" + event, listener);
|
|
}
|
|
else {
|
|
// Other browsers.
|
|
elem.removeEventListener(event, listener, false);
|
|
}
|
|
};
|
|
|
|
// Converts \r\n and \r to \n.
|
|
util.fixEolChars = function (text) {
|
|
text = text.replace(/\r\n/g, "\n");
|
|
text = text.replace(/\r/g, "\n");
|
|
return text;
|
|
};
|
|
|
|
// Extends a regular expression. Returns a new RegExp
|
|
// using pre + regex + post as the expression.
|
|
// Used in a few functions where we have a base
|
|
// expression and we want to pre- or append some
|
|
// conditions to it (e.g. adding "$" to the end).
|
|
// The flags are unchanged.
|
|
//
|
|
// regex is a RegExp, pre and post are strings.
|
|
util.extendRegExp = function (regex, pre, post) {
|
|
|
|
if (pre === null || pre === undefined) {
|
|
pre = "";
|
|
}
|
|
if (post === null || post === undefined) {
|
|
post = "";
|
|
}
|
|
|
|
var pattern = regex.toString();
|
|
var flags;
|
|
|
|
// Replace the flags with empty space and store them.
|
|
pattern = pattern.replace(/\/([gim]*)$/, function (wholeMatch, flagsPart) {
|
|
flags = flagsPart;
|
|
return "";
|
|
});
|
|
|
|
// Remove the slash delimiters on the regular expression.
|
|
pattern = pattern.replace(/(^\/|\/$)/g, "");
|
|
pattern = pre + pattern + post;
|
|
|
|
return new re(pattern, flags);
|
|
}
|
|
|
|
// UNFINISHED
|
|
// The assignment in the while loop makes jslint cranky.
|
|
// I'll change it to a better loop later.
|
|
position.getTop = function (elem, isInner) {
|
|
var result = elem.offsetTop;
|
|
if (!isInner) {
|
|
while (elem = elem.offsetParent) {
|
|
result += elem.offsetTop;
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
position.getHeight = function (elem) {
|
|
return elem.offsetHeight || elem.scrollHeight;
|
|
};
|
|
|
|
position.getWidth = function (elem) {
|
|
return elem.offsetWidth || elem.scrollWidth;
|
|
};
|
|
|
|
position.getPageSize = function () {
|
|
|
|
var scrollWidth, scrollHeight;
|
|
var innerWidth, innerHeight;
|
|
|
|
// It's not very clear which blocks work with which browsers.
|
|
if (self.innerHeight && self.scrollMaxY) {
|
|
scrollWidth = doc.body.scrollWidth;
|
|
scrollHeight = self.innerHeight + self.scrollMaxY;
|
|
}
|
|
else if (doc.body.scrollHeight > doc.body.offsetHeight) {
|
|
scrollWidth = doc.body.scrollWidth;
|
|
scrollHeight = doc.body.scrollHeight;
|
|
}
|
|
else {
|
|
scrollWidth = doc.body.offsetWidth;
|
|
scrollHeight = doc.body.offsetHeight;
|
|
}
|
|
|
|
if (self.innerHeight) {
|
|
// Non-IE browser
|
|
innerWidth = self.innerWidth;
|
|
innerHeight = self.innerHeight;
|
|
}
|
|
else if (doc.documentElement && doc.documentElement.clientHeight) {
|
|
// Some versions of IE (IE 6 w/ a DOCTYPE declaration)
|
|
innerWidth = doc.documentElement.clientWidth;
|
|
innerHeight = doc.documentElement.clientHeight;
|
|
}
|
|
else if (doc.body) {
|
|
// Other versions of IE
|
|
innerWidth = doc.body.clientWidth;
|
|
innerHeight = doc.body.clientHeight;
|
|
}
|
|
|
|
var maxWidth = Math.max(scrollWidth, innerWidth);
|
|
var maxHeight = Math.max(scrollHeight, innerHeight);
|
|
return [maxWidth, maxHeight, innerWidth, innerHeight];
|
|
};
|
|
|
|
// Handles pushing and popping TextareaStates for undo/redo commands.
|
|
// I should rename the stack variables to list.
|
|
function UndoManager(callback, panels) {
|
|
|
|
var undoObj = this;
|
|
var undoStack = []; // A stack of undo states
|
|
var stackPtr = 0; // The index of the current state
|
|
var mode = "none";
|
|
var lastState; // The last state
|
|
var timer; // The setTimeout handle for cancelling the timer
|
|
var inputStateObj;
|
|
|
|
// Set the mode for later logic steps.
|
|
var setMode = function (newMode, noSave) {
|
|
if (mode != newMode) {
|
|
mode = newMode;
|
|
if (!noSave) {
|
|
saveState();
|
|
}
|
|
}
|
|
|
|
if (!uaSniffed.isIE || mode != "moving") {
|
|
timer = setTimeout(refreshState, 1);
|
|
}
|
|
else {
|
|
inputStateObj = null;
|
|
}
|
|
};
|
|
|
|
var refreshState = function (isInitialState) {
|
|
inputStateObj = new TextareaState(panels, isInitialState);
|
|
timer = undefined;
|
|
};
|
|
|
|
this.setCommandMode = function () {
|
|
mode = "command";
|
|
saveState();
|
|
timer = setTimeout(refreshState, 0);
|
|
};
|
|
|
|
this.canUndo = function () {
|
|
return stackPtr > 1;
|
|
};
|
|
|
|
this.canRedo = function () {
|
|
if (undoStack[stackPtr + 1]) {
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Removes the last state and restores it.
|
|
this.undo = function () {
|
|
|
|
if (undoObj.canUndo()) {
|
|
if (lastState) {
|
|
// What about setting state -1 to null or checking for undefined?
|
|
lastState.restore();
|
|
lastState = null;
|
|
}
|
|
else {
|
|
undoStack[stackPtr] = new TextareaState(panels);
|
|
undoStack[--stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
panels.input.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Redo an action.
|
|
this.redo = function () {
|
|
|
|
if (undoObj.canRedo()) {
|
|
|
|
undoStack[++stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
panels.input.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Push the input area state to the stack.
|
|
var saveState = function () {
|
|
var currState = inputStateObj || new TextareaState(panels);
|
|
|
|
if (!currState) {
|
|
return false;
|
|
}
|
|
if (mode == "moving") {
|
|
if (!lastState) {
|
|
lastState = currState;
|
|
}
|
|
return;
|
|
}
|
|
if (lastState) {
|
|
if (undoStack[stackPtr - 1].text != lastState.text) {
|
|
undoStack[stackPtr++] = lastState;
|
|
}
|
|
lastState = null;
|
|
}
|
|
undoStack[stackPtr++] = currState;
|
|
undoStack[stackPtr + 1] = null;
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
};
|
|
|
|
var handleCtrlYZ = function (event) {
|
|
|
|
var handled = false;
|
|
|
|
if ((event.ctrlKey || event.metaKey) && !event.altKey) {
|
|
|
|
// IE and Opera do not support charCode.
|
|
var keyCode = event.charCode || event.keyCode;
|
|
var keyCodeChar = String.fromCharCode(keyCode);
|
|
|
|
switch (keyCodeChar.toLowerCase()) {
|
|
|
|
case "y":
|
|
undoObj.redo();
|
|
handled = true;
|
|
break;
|
|
|
|
case "z":
|
|
if (!event.shiftKey) {
|
|
undoObj.undo();
|
|
}
|
|
else {
|
|
undoObj.redo();
|
|
}
|
|
handled = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (handled) {
|
|
if (event.preventDefault) {
|
|
event.preventDefault();
|
|
}
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
return;
|
|
}
|
|
};
|
|
|
|
// Set the mode depending on what is going on in the input area.
|
|
var handleModeChange = function (event) {
|
|
|
|
if (!event.ctrlKey && !event.metaKey) {
|
|
|
|
var keyCode = event.keyCode;
|
|
|
|
if ((keyCode >= 33 && keyCode <= 40) || (keyCode >= 63232 && keyCode <= 63235)) {
|
|
// 33 - 40: page up/dn and arrow keys
|
|
// 63232 - 63235: page up/dn and arrow keys on safari
|
|
setMode("moving");
|
|
}
|
|
else if (keyCode == 8 || keyCode == 46 || keyCode == 127) {
|
|
// 8: backspace
|
|
// 46: delete
|
|
// 127: delete
|
|
setMode("deleting");
|
|
}
|
|
else if (keyCode == 13) {
|
|
// 13: Enter
|
|
setMode("newlines");
|
|
}
|
|
else if (keyCode == 27) {
|
|
// 27: escape
|
|
setMode("escape");
|
|
}
|
|
else if ((keyCode < 16 || keyCode > 20) && keyCode != 91) {
|
|
// 16-20 are shift, etc.
|
|
// 91: left window key
|
|
// I think this might be a little messed up since there are
|
|
// a lot of nonprinting keys above 20.
|
|
setMode("typing");
|
|
}
|
|
}
|
|
};
|
|
|
|
var setEventHandlers = function () {
|
|
util.addEvent(panels.input, "keypress", function (event) {
|
|
// keyCode 89: y
|
|
// keyCode 90: z
|
|
if ((event.ctrlKey || event.metaKey) && !event.altKey && (event.keyCode == 89 || event.keyCode == 90)) {
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
var handlePaste = function () {
|
|
if (uaSniffed.isIE || (inputStateObj && inputStateObj.text != panels.input.value)) {
|
|
if (timer == undefined) {
|
|
mode = "paste";
|
|
saveState();
|
|
refreshState();
|
|
}
|
|
}
|
|
};
|
|
|
|
util.addEvent(panels.input, "keydown", handleCtrlYZ);
|
|
util.addEvent(panels.input, "keydown", handleModeChange);
|
|
util.addEvent(panels.input, "mousedown", function () {
|
|
setMode("moving");
|
|
});
|
|
|
|
panels.input.onpaste = handlePaste;
|
|
panels.input.ondrop = handlePaste;
|
|
};
|
|
|
|
var init = function () {
|
|
setEventHandlers();
|
|
refreshState(true);
|
|
saveState();
|
|
};
|
|
|
|
init();
|
|
}
|
|
|
|
// end of UndoManager
|
|
|
|
// The input textarea state/contents.
|
|
// This is used to implement undo/redo by the undo manager.
|
|
function TextareaState(panels, isInitialState) {
|
|
|
|
// Aliases
|
|
var stateObj = this;
|
|
var inputArea = panels.input;
|
|
this.init = function () {
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
if (!isInitialState && doc.activeElement && doc.activeElement !== inputArea) { // this happens when tabbing out of the input box
|
|
return;
|
|
}
|
|
|
|
this.setInputAreaSelectionStartEnd();
|
|
this.scrollTop = inputArea.scrollTop;
|
|
if (!this.text && inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
this.text = inputArea.value;
|
|
}
|
|
|
|
}
|
|
|
|
// Sets the selected text in the input box after we've performed an
|
|
// operation.
|
|
this.setInputAreaSelection = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
if (inputArea.selectionStart !== undefined && !uaSniffed.isOpera) {
|
|
|
|
inputArea.focus();
|
|
inputArea.selectionStart = stateObj.start;
|
|
inputArea.selectionEnd = stateObj.end;
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
}
|
|
else if (doc.selection) {
|
|
|
|
if (doc.activeElement && doc.activeElement !== inputArea) {
|
|
return;
|
|
}
|
|
|
|
inputArea.focus();
|
|
var range = inputArea.createTextRange();
|
|
range.moveStart("character", -inputArea.value.length);
|
|
range.moveEnd("character", -inputArea.value.length);
|
|
range.moveEnd("character", stateObj.end);
|
|
range.moveStart("character", stateObj.start);
|
|
range.select();
|
|
}
|
|
};
|
|
|
|
this.setInputAreaSelectionStartEnd = function () {
|
|
|
|
if (!panels.ieCachedRange && (inputArea.selectionStart || inputArea.selectionStart === 0)) {
|
|
|
|
stateObj.start = inputArea.selectionStart;
|
|
stateObj.end = inputArea.selectionEnd;
|
|
}
|
|
else if (doc.selection) {
|
|
|
|
stateObj.text = util.fixEolChars(inputArea.value);
|
|
|
|
// IE loses the selection in the textarea when buttons are
|
|
// clicked. On IE we cache the selection. Here, if something is cached,
|
|
// we take it.
|
|
var range = panels.ieCachedRange || doc.selection.createRange();
|
|
|
|
var fixedRange = util.fixEolChars(range.text);
|
|
var marker = "\x07";
|
|
var markedRange = marker + fixedRange + marker;
|
|
range.text = markedRange;
|
|
var inputText = util.fixEolChars(inputArea.value);
|
|
|
|
range.moveStart("character", -markedRange.length);
|
|
range.text = fixedRange;
|
|
|
|
stateObj.start = inputText.indexOf(marker);
|
|
stateObj.end = inputText.lastIndexOf(marker) - marker.length;
|
|
|
|
var len = stateObj.text.length - util.fixEolChars(inputArea.value).length;
|
|
|
|
if (len) {
|
|
range.moveStart("character", -fixedRange.length);
|
|
while (len--) {
|
|
fixedRange += "\n";
|
|
stateObj.end += 1;
|
|
}
|
|
range.text = fixedRange;
|
|
}
|
|
|
|
if (panels.ieCachedRange)
|
|
stateObj.scrollTop = panels.ieCachedScrollTop; // this is set alongside with ieCachedRange
|
|
|
|
panels.ieCachedRange = null;
|
|
|
|
this.setInputAreaSelection();
|
|
}
|
|
};
|
|
|
|
// Restore this state into the input area.
|
|
this.restore = function () {
|
|
|
|
if (stateObj.text != undefined && stateObj.text != inputArea.value) {
|
|
inputArea.value = stateObj.text;
|
|
}
|
|
this.setInputAreaSelection();
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
};
|
|
|
|
// Gets a collection of HTML chunks from the inptut textarea.
|
|
this.getChunks = function () {
|
|
|
|
var chunk = new Chunks();
|
|
chunk.before = util.fixEolChars(stateObj.text.substring(0, stateObj.start));
|
|
chunk.startTag = "";
|
|
chunk.selection = util.fixEolChars(stateObj.text.substring(stateObj.start, stateObj.end));
|
|
chunk.endTag = "";
|
|
chunk.after = util.fixEolChars(stateObj.text.substring(stateObj.end));
|
|
chunk.scrollTop = stateObj.scrollTop;
|
|
|
|
return chunk;
|
|
};
|
|
|
|
// Sets the TextareaState properties given a chunk of markdown.
|
|
this.setChunks = function (chunk) {
|
|
|
|
chunk.before = chunk.before + chunk.startTag;
|
|
chunk.after = chunk.endTag + chunk.after;
|
|
|
|
this.start = chunk.before.length;
|
|
this.end = chunk.before.length + chunk.selection.length;
|
|
this.text = chunk.before + chunk.selection + chunk.after;
|
|
this.scrollTop = chunk.scrollTop;
|
|
};
|
|
this.init();
|
|
};
|
|
|
|
function PreviewManager(converter, panels, previewRefreshCallback) {
|
|
|
|
var managerObj = this;
|
|
var timeout;
|
|
var elapsedTime;
|
|
var oldInputText;
|
|
var maxDelay = 3000;
|
|
var startType = "delayed"; // The other legal value is "manual"
|
|
|
|
// Adds event listeners to elements
|
|
var setupEvents = function (inputElem, listener) {
|
|
|
|
util.addEvent(inputElem, "input", listener);
|
|
inputElem.onpaste = listener;
|
|
inputElem.ondrop = listener;
|
|
|
|
util.addEvent(inputElem, "keypress", listener);
|
|
util.addEvent(inputElem, "keydown", listener);
|
|
};
|
|
|
|
var getDocScrollTop = function () {
|
|
|
|
var result = 0;
|
|
|
|
if (window.innerHeight) {
|
|
result = window.pageYOffset;
|
|
}
|
|
else
|
|
if (doc.documentElement && doc.documentElement.scrollTop) {
|
|
result = doc.documentElement.scrollTop;
|
|
}
|
|
else
|
|
if (doc.body) {
|
|
result = doc.body.scrollTop;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
var makePreviewHtml = function () {
|
|
|
|
// If there is no registered preview panel
|
|
// there is nothing to do.
|
|
if (!panels.preview)
|
|
return;
|
|
|
|
|
|
var text = panels.input.value;
|
|
if (text && text == oldInputText) {
|
|
return; // Input text hasn't changed.
|
|
}
|
|
else {
|
|
oldInputText = text;
|
|
}
|
|
|
|
var prevTime = new Date().getTime();
|
|
|
|
text = converter.makeHtml(text);
|
|
|
|
// Calculate the processing time of the HTML creation.
|
|
// It's used as the delay time in the event listener.
|
|
var currTime = new Date().getTime();
|
|
elapsedTime = currTime - prevTime;
|
|
|
|
pushPreviewHtml(text);
|
|
};
|
|
|
|
// setTimeout is already used. Used as an event listener.
|
|
var applyTimeout = function () {
|
|
|
|
if (timeout) {
|
|
clearTimeout(timeout);
|
|
timeout = undefined;
|
|
}
|
|
|
|
if (startType !== "manual") {
|
|
|
|
var delay = 0;
|
|
|
|
if (startType === "delayed") {
|
|
delay = elapsedTime;
|
|
}
|
|
|
|
if (delay > maxDelay) {
|
|
delay = maxDelay;
|
|
}
|
|
timeout = setTimeout(makePreviewHtml, delay);
|
|
}
|
|
};
|
|
|
|
var getScaleFactor = function (panel) {
|
|
if (panel.scrollHeight <= panel.clientHeight) {
|
|
return 1;
|
|
}
|
|
return panel.scrollTop / (panel.scrollHeight - panel.clientHeight);
|
|
};
|
|
|
|
var setPanelScrollTops = function () {
|
|
if (panels.preview) {
|
|
panels.preview.scrollTop = (panels.preview.scrollHeight - panels.preview.clientHeight) * getScaleFactor(panels.preview);
|
|
}
|
|
};
|
|
|
|
this.refresh = function (requiresRefresh) {
|
|
|
|
if (requiresRefresh) {
|
|
oldInputText = "";
|
|
makePreviewHtml();
|
|
}
|
|
else {
|
|
applyTimeout();
|
|
}
|
|
};
|
|
|
|
this.processingTime = function () {
|
|
return elapsedTime;
|
|
};
|
|
|
|
var isFirstTimeFilled = true;
|
|
|
|
// IE doesn't let you use innerHTML if the element is contained somewhere in a table
|
|
// (which is the case for inline editing) -- in that case, detach the element, set the
|
|
// value, and reattach. Yes, that *is* ridiculous.
|
|
var ieSafePreviewSet = function (text) {
|
|
var preview = panels.preview;
|
|
var parent = preview.parentNode;
|
|
var sibling = preview.nextSibling;
|
|
parent.removeChild(preview);
|
|
preview.innerHTML = text;
|
|
if (!sibling)
|
|
parent.appendChild(preview);
|
|
else
|
|
parent.insertBefore(preview, sibling);
|
|
}
|
|
|
|
var nonSuckyBrowserPreviewSet = function (text) {
|
|
panels.preview.innerHTML = text;
|
|
}
|
|
|
|
var previewSetter;
|
|
|
|
var previewSet = function (text) {
|
|
if (previewSetter)
|
|
return previewSetter(text);
|
|
|
|
try {
|
|
nonSuckyBrowserPreviewSet(text);
|
|
previewSetter = nonSuckyBrowserPreviewSet;
|
|
} catch (e) {
|
|
previewSetter = ieSafePreviewSet;
|
|
previewSetter(text);
|
|
}
|
|
};
|
|
|
|
var pushPreviewHtml = function (text) {
|
|
|
|
var emptyTop = position.getTop(panels.input) - getDocScrollTop();
|
|
|
|
if (panels.preview) {
|
|
previewSet(text);
|
|
previewRefreshCallback();
|
|
}
|
|
|
|
setPanelScrollTops();
|
|
|
|
if (isFirstTimeFilled) {
|
|
isFirstTimeFilled = false;
|
|
return;
|
|
}
|
|
|
|
var fullTop = position.getTop(panels.input) - getDocScrollTop();
|
|
|
|
if (uaSniffed.isIE) {
|
|
setTimeout(function () {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}, 0);
|
|
}
|
|
else {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}
|
|
};
|
|
|
|
var init = function () {
|
|
|
|
setupEvents(panels.input, applyTimeout);
|
|
makePreviewHtml();
|
|
|
|
if (panels.preview) {
|
|
panels.preview.scrollTop = 0;
|
|
}
|
|
};
|
|
|
|
init();
|
|
};
|
|
|
|
// Creates the background behind the hyperlink text entry box.
|
|
// And download dialog
|
|
// Most of this has been moved to CSS but the div creation and
|
|
// browser-specific hacks remain here.
|
|
ui.createBackground = function () {
|
|
|
|
var background = doc.createElement("div"),
|
|
style = background.style;
|
|
|
|
background.className = "wmd-prompt-background";
|
|
|
|
style.position = "absolute";
|
|
style.top = "0";
|
|
|
|
style.zIndex = "1000";
|
|
|
|
if (uaSniffed.isIE) {
|
|
style.filter = "alpha(opacity=50)";
|
|
}
|
|
else {
|
|
style.opacity = "0.5";
|
|
}
|
|
|
|
var pageSize = position.getPageSize();
|
|
style.height = pageSize[1] + "px";
|
|
|
|
if (uaSniffed.isIE) {
|
|
style.left = doc.documentElement.scrollLeft;
|
|
style.width = doc.documentElement.clientWidth;
|
|
}
|
|
else {
|
|
style.left = "0";
|
|
style.width = "100%";
|
|
}
|
|
|
|
doc.body.appendChild(background);
|
|
return background;
|
|
};
|
|
|
|
// This simulates a modal dialog box and asks for the URL when you
|
|
// click the hyperlink or image buttons.
|
|
//
|
|
// text: The html for the input box.
|
|
// defaultInputText: The default value that appears in the input box.
|
|
// callback: The function which is executed when the prompt is dismissed, either via OK or Cancel.
|
|
// It receives a single argument; either the entered text (if OK was chosen) or null (if Cancel
|
|
// was chosen).
|
|
ui.prompt = function (text, defaultInputText, callback, ok, cancel) {
|
|
|
|
// These variables need to be declared at this level since they are used
|
|
// in multiple functions.
|
|
var dialog; // The dialog box.
|
|
var input; // The text box where you enter the hyperlink.
|
|
|
|
|
|
if (defaultInputText === undefined) {
|
|
defaultInputText = "";
|
|
}
|
|
|
|
// Used as a keydown event handler. Esc dismisses the prompt.
|
|
// Key code 27 is ESC.
|
|
var checkEscape = function (key) {
|
|
var code = (key.charCode || key.keyCode);
|
|
if (code === 27) {
|
|
close(true);
|
|
}
|
|
};
|
|
|
|
// Dismisses the hyperlink input box.
|
|
// isCancel is true if we don't care about the input text.
|
|
// isCancel is false if we are going to keep the text.
|
|
var close = function (isCancel) {
|
|
util.removeEvent(doc.body, "keydown", checkEscape);
|
|
var text = input.value;
|
|
|
|
if (isCancel) {
|
|
text = null;
|
|
}
|
|
else {
|
|
// Fixes common pasting errors.
|
|
text = text.replace(/^http:\/\/(https?|ftp):\/\//, '$1://');
|
|
if (!/^(?:https?|ftp):\/\//.test(text))
|
|
text = 'http://' + text;
|
|
}
|
|
|
|
dialog.parentNode.removeChild(dialog);
|
|
|
|
callback(text);
|
|
return false;
|
|
};
|
|
|
|
|
|
|
|
// Create the text input box form/window.
|
|
var createDialog = function () {
|
|
|
|
// The main dialog box.
|
|
dialog = doc.createElement("div");
|
|
dialog.className = "wmd-prompt-dialog";
|
|
/*
|
|
dialog.style.padding = "10px;";
|
|
dialog.style.position = "fixed";
|
|
dialog.style.width = "400px";
|
|
dialog.style.zIndex = "1001";
|
|
*/
|
|
|
|
// The dialog text.
|
|
var question = doc.createElement("div");
|
|
question.innerHTML = text;
|
|
// question.style.padding = "5px";
|
|
dialog.appendChild(question);
|
|
|
|
// The web form container for the text box and buttons.
|
|
var form = doc.createElement("form"),
|
|
style = form.style;
|
|
form.onsubmit = function () { return close(false); };
|
|
/*
|
|
style.padding = "0";
|
|
style.margin = "0";
|
|
style.cssFloat = "left";
|
|
style.width = "100%";
|
|
style.textAlign = "center";
|
|
style.position = "relative";
|
|
*/
|
|
dialog.appendChild(form);
|
|
|
|
// The input text box
|
|
input = doc.createElement("input");
|
|
input.type = "text";
|
|
input.value = defaultInputText;
|
|
/*
|
|
style = input.style;
|
|
style.display = "block";
|
|
style.width = "80%";
|
|
style.marginLeft = style.marginRight = "auto";
|
|
*/
|
|
form.appendChild(input);
|
|
|
|
// The ok button
|
|
var okButton = doc.createElement("button");
|
|
okButton.type = "button";
|
|
okButton.className = "btn-s primary";
|
|
okButton.onclick = function () { return close(false); };
|
|
okButton.innerHTML = ok;
|
|
/*
|
|
style = okButton.style;
|
|
style.margin = "10px";
|
|
style.display = "inline";
|
|
style.width = "7em";
|
|
*/
|
|
|
|
// The cancel button
|
|
var cancelButton = doc.createElement("button");
|
|
cancelButton.type = "button";
|
|
cancelButton.className = "btn-s";
|
|
cancelButton.onclick = function () { return close(true); };
|
|
cancelButton.innerHTML = cancel;
|
|
/*
|
|
style = cancelButton.style;
|
|
style.margin = "10px";
|
|
style.display = "inline";
|
|
style.width = "7em";
|
|
*/
|
|
|
|
form.appendChild(okButton);
|
|
form.appendChild(cancelButton);
|
|
|
|
util.addEvent(doc.body, "keydown", checkEscape);
|
|
/*
|
|
dialog.style.top = "50%";
|
|
dialog.style.left = "50%";
|
|
dialog.style.display = "block";
|
|
if (uaSniffed.isIE_5or6) {
|
|
dialog.style.position = "absolute";
|
|
dialog.style.top = doc.documentElement.scrollTop + 200 + "px";
|
|
dialog.style.left = "50%";
|
|
}
|
|
*/
|
|
doc.body.appendChild(dialog);
|
|
|
|
// This has to be done AFTER adding the dialog to the form if you
|
|
// want it to be centered.
|
|
/*
|
|
dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
|
|
dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
|
|
*/
|
|
|
|
};
|
|
|
|
// Why is this in a zero-length timeout?
|
|
// Is it working around a browser bug?
|
|
setTimeout(function () {
|
|
|
|
createDialog();
|
|
|
|
var defTextLen = defaultInputText.length;
|
|
if (input.selectionStart !== undefined) {
|
|
input.selectionStart = 0;
|
|
input.selectionEnd = defTextLen;
|
|
}
|
|
else if (input.createTextRange) {
|
|
var range = input.createTextRange();
|
|
range.collapse(false);
|
|
range.moveStart("character", -defTextLen);
|
|
range.moveEnd("character", defTextLen);
|
|
range.select();
|
|
}
|
|
|
|
input.focus();
|
|
}, 0);
|
|
};
|
|
|
|
function UIManager(postfix, panels, undoManager, previewManager, commandManager, fullScreenManager, helpOptions, getString) {
|
|
|
|
var inputBox = panels.input,
|
|
buttons = {}; // buttons.undo, buttons.link, etc. The actual DOM elements.
|
|
|
|
makeSpritedButtonRow();
|
|
|
|
var keyEvent = "keydown";
|
|
if (uaSniffed.isOpera) {
|
|
keyEvent = "keypress";
|
|
}
|
|
|
|
util.addEvent(inputBox, keyEvent, function (key) {
|
|
// Check to see if we have a button key and, if so execute the callback.
|
|
if ((key.ctrlKey || key.metaKey) && !key.altKey && !key.shiftKey) {
|
|
|
|
var keyCode = key.charCode || key.keyCode;
|
|
var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
|
|
|
|
switch (keyCodeStr) {
|
|
case "b":
|
|
doClick(buttons.bold);
|
|
break;
|
|
case "i":
|
|
doClick(buttons.italic);
|
|
break;
|
|
case "l":
|
|
doClick(buttons.link);
|
|
break;
|
|
case "q":
|
|
doClick(buttons.quote);
|
|
break;
|
|
case "k":
|
|
doClick(buttons.code);
|
|
break;
|
|
case "g":
|
|
doClick(buttons.image);
|
|
break;
|
|
case "o":
|
|
doClick(buttons.olist);
|
|
break;
|
|
case "u":
|
|
doClick(buttons.ulist);
|
|
break;
|
|
case 'm':
|
|
doClick(buttons.more);
|
|
break;
|
|
case 'j':
|
|
doClick(buttons.fullscreen);
|
|
break;
|
|
case 'e':
|
|
doClick(buttons.exitFullscreen);
|
|
break;
|
|
case "h":
|
|
doClick(buttons.heading);
|
|
break;
|
|
case "r":
|
|
doClick(buttons.hr);
|
|
break;
|
|
case "y":
|
|
doClick(buttons.redo);
|
|
break;
|
|
case "z":
|
|
if (key.shiftKey) {
|
|
doClick(buttons.redo);
|
|
}
|
|
else {
|
|
doClick(buttons.undo);
|
|
}
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
|
|
if (key.preventDefault) {
|
|
key.preventDefault();
|
|
}
|
|
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
}else if(key.keyCode==9){
|
|
var tab = {};
|
|
tab.textOp = bindCommand("doTab");
|
|
doClick(tab);
|
|
|
|
if (key.preventDefault) {
|
|
key.preventDefault();
|
|
}
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Auto-indent on shift-enter
|
|
util.addEvent(inputBox, "keyup", function (key) {
|
|
if (key.shiftKey && !key.ctrlKey && !key.metaKey) {
|
|
var keyCode = key.charCode || key.keyCode;
|
|
// Character 13 is Enter
|
|
if (keyCode === 13) {
|
|
var fakeButton = {};
|
|
fakeButton.textOp = bindCommand("doAutoindent");
|
|
doClick(fakeButton);
|
|
}
|
|
}
|
|
});
|
|
|
|
// special handler because IE clears the context of the textbox on ESC
|
|
if (uaSniffed.isIE) {
|
|
util.addEvent(inputBox, "keydown", function (key) {
|
|
var code = key.keyCode;
|
|
if (code === 27) {
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
// Perform the button's action.
|
|
function doClick(button) {
|
|
|
|
inputBox.focus();
|
|
|
|
if (button.textOp) {
|
|
|
|
if (undoManager) {
|
|
undoManager.setCommandMode();
|
|
}
|
|
|
|
var state = new TextareaState(panels);
|
|
|
|
if (!state) {
|
|
return;
|
|
}
|
|
|
|
var chunks = state.getChunks();
|
|
|
|
// Some commands launch a "modal" prompt dialog. Javascript
|
|
// can't really make a modal dialog box and the WMD code
|
|
// will continue to execute while the dialog is displayed.
|
|
// This prevents the dialog pattern I'm used to and means
|
|
// I can't do something like this:
|
|
//
|
|
// var link = CreateLinkDialog();
|
|
// makeMarkdownLink(link);
|
|
//
|
|
// Instead of this straightforward method of handling a
|
|
// dialog I have to pass any code which would execute
|
|
// after the dialog is dismissed (e.g. link creation)
|
|
// in a function parameter.
|
|
//
|
|
// Yes this is awkward and I think it sucks, but there's
|
|
// no real workaround. Only the image and link code
|
|
// create dialogs and require the function pointers.
|
|
var fixupInputArea = function () {
|
|
|
|
inputBox.focus();
|
|
|
|
if (chunks) {
|
|
state.setChunks(chunks);
|
|
}
|
|
|
|
state.restore();
|
|
previewManager.refresh();
|
|
};
|
|
|
|
var noCleanup = button.textOp(chunks, fixupInputArea);
|
|
|
|
if (!noCleanup) {
|
|
fixupInputArea();
|
|
}
|
|
|
|
}
|
|
|
|
if (button.execute) {
|
|
button.execute(undoManager);
|
|
}
|
|
};
|
|
|
|
function setupButton(button, isEnabled) {
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
var image = button.getElementsByTagName("span")[0];
|
|
if (isEnabled) {
|
|
image.style.backgroundPosition = button.XShift + " " + normalYShift;
|
|
button.onmouseover = function () {
|
|
image.style.backgroundPosition = this.XShift + " " + highlightYShift;
|
|
};
|
|
|
|
button.onmouseout = function () {
|
|
image.style.backgroundPosition = this.XShift + " " + normalYShift;
|
|
};
|
|
|
|
// IE tries to select the background image "button" text (it's
|
|
// implemented in a list item) so we have to cache the selection
|
|
// on mousedown.
|
|
if (uaSniffed.isIE) {
|
|
button.onmousedown = function () {
|
|
if (doc.activeElement && doc.activeElement !== panels.input) { // we're not even in the input box, so there's no selection
|
|
return;
|
|
}
|
|
panels.ieCachedRange = document.selection.createRange();
|
|
panels.ieCachedScrollTop = panels.input.scrollTop;
|
|
};
|
|
}
|
|
|
|
if (!button.isHelp) {
|
|
button.onclick = function () {
|
|
if (this.onmouseout) {
|
|
this.onmouseout();
|
|
}
|
|
doClick(this);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
image.style.backgroundPosition = button.XShift + " " + disabledYShift;
|
|
button.onmouseover = button.onmouseout = button.onclick = function () { };
|
|
}
|
|
}
|
|
|
|
function bindCommand(method) {
|
|
if (typeof method === "string")
|
|
method = commandManager[method];
|
|
return function () { method.apply(commandManager, arguments); }
|
|
}
|
|
|
|
function makeSpritedButtonRow() {
|
|
|
|
var buttonBar = panels.buttonBar;
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
|
|
var buttonRow = document.createElement("ul");
|
|
buttonRow.id = "wmd-button-row" + postfix;
|
|
buttonRow.className = 'wmd-button-row';
|
|
buttonRow = buttonBar.appendChild(buttonRow);
|
|
var xPosition = 0;
|
|
var makeButton = function (id, title, XShift, textOp) {
|
|
var button = document.createElement("li");
|
|
button.className = "wmd-button";
|
|
button.style.left = xPosition + "px";
|
|
xPosition += 25;
|
|
var buttonImage = document.createElement("span");
|
|
button.id = id + postfix;
|
|
button.appendChild(buttonImage);
|
|
button.title = title;
|
|
button.XShift = XShift;
|
|
if (textOp)
|
|
button.textOp = textOp;
|
|
setupButton(button, true);
|
|
buttonRow.appendChild(button);
|
|
return button;
|
|
};
|
|
var makeSpacer = function (num) {
|
|
var spacer = document.createElement("li");
|
|
spacer.className = "wmd-spacer wmd-spacer" + num;
|
|
spacer.id = "wmd-spacer" + num + postfix;
|
|
buttonRow.appendChild(spacer);
|
|
xPosition += 25;
|
|
}
|
|
|
|
buttons.bold = makeButton("wmd-bold-button", getString("bold"), "0px", bindCommand("doBold"));
|
|
buttons.italic = makeButton("wmd-italic-button", getString("italic"), "-20px", bindCommand("doItalic"));
|
|
makeSpacer(1);
|
|
buttons.link = makeButton("wmd-link-button", getString("link"), "-40px", bindCommand(function (chunk, postProcessing) {
|
|
return this.doLinkOrImage(chunk, postProcessing, false);
|
|
}));
|
|
buttons.quote = makeButton("wmd-quote-button", getString("quote"), "-60px", bindCommand("doBlockquote"));
|
|
buttons.code = makeButton("wmd-code-button", getString("code"), "-80px", bindCommand("doCode"));
|
|
buttons.image = makeButton("wmd-image-button", getString("image"), "-100px", bindCommand(function (chunk, postProcessing) {
|
|
return this.doLinkOrImage(chunk, postProcessing, true);
|
|
}));
|
|
makeSpacer(2);
|
|
buttons.olist = makeButton("wmd-olist-button", getString("olist"), "-120px", bindCommand(function (chunk, postProcessing) {
|
|
this.doList(chunk, postProcessing, true);
|
|
}));
|
|
buttons.ulist = makeButton("wmd-ulist-button", getString("ulist"), "-140px", bindCommand(function (chunk, postProcessing) {
|
|
this.doList(chunk, postProcessing, false);
|
|
}));
|
|
buttons.heading = makeButton("wmd-heading-button", getString("heading"), "-160px", bindCommand("doHeading"));
|
|
buttons.hr = makeButton("wmd-hr-button", getString("hr"), "-180px", bindCommand("doHorizontalRule"));
|
|
buttons.more = makeButton("wmd-more-button", getString("more"), "-280px", bindCommand("doMore"));
|
|
makeSpacer(3);
|
|
buttons.undo = makeButton("wmd-undo-button", getString("undo"), "-200px", null);
|
|
buttons.undo.execute = function (manager) { if (manager) manager.undo(); };
|
|
|
|
var redoTitle = /win/.test(nav.platform.toLowerCase()) ?
|
|
getString("redo") :
|
|
getString("redomac"); // mac and other non-Windows platforms
|
|
|
|
buttons.redo = makeButton("wmd-redo-button", redoTitle, "-220px", null);
|
|
buttons.redo.execute = function (manager) { if (manager) manager.redo(); };
|
|
buttons.fullscreen = makeButton("wmd-fullscreen-button", getString("fullscreen"), "-240px", null);
|
|
buttons.fullscreen.execute = function () { fullScreenManager.doFullScreen(buttons, true); };
|
|
buttons.exitFullscreen = makeButton("wmd-exit-fullscreen-button", getString("exitFullscreen"), "-260px", null);
|
|
buttons.exitFullscreen.style.display = 'none';
|
|
buttons.exitFullscreen.execute = function () { fullScreenManager.doFullScreen(buttons, false); };
|
|
|
|
if (helpOptions) {
|
|
var helpButton = document.createElement("li");
|
|
var helpButtonImage = document.createElement("span");
|
|
helpButton.appendChild(helpButtonImage);
|
|
helpButton.className = "wmd-button wmd-help-button";
|
|
helpButton.id = "wmd-help-button" + postfix;
|
|
helpButton.XShift = "-300px";
|
|
helpButton.isHelp = true;
|
|
helpButton.style.right = "0px";
|
|
helpButton.title = getString("help");
|
|
helpButton.onclick = helpOptions.handler;
|
|
|
|
setupButton(helpButton, true);
|
|
buttonRow.appendChild(helpButton);
|
|
buttons.help = helpButton;
|
|
}
|
|
|
|
setUndoRedoButtonStates();
|
|
}
|
|
|
|
function setUndoRedoButtonStates() {
|
|
if (undoManager) {
|
|
setupButton(buttons.undo, undoManager.canUndo());
|
|
setupButton(buttons.redo, undoManager.canRedo());
|
|
}
|
|
};
|
|
|
|
this.setUndoRedoButtonStates = setUndoRedoButtonStates;
|
|
|
|
}
|
|
|
|
function CommandManager(pluginHooks, getString) {
|
|
this.hooks = pluginHooks;
|
|
this.getString = getString;
|
|
}
|
|
|
|
var commandProto = CommandManager.prototype;
|
|
|
|
// The markdown symbols - 4 spaces = code, > = blockquote, etc.
|
|
commandProto.prefixes = "(?:\\s{4,}|\\s*>|\\s*-\\s+|\\s*\\d+\\.|=|\\+|-|_|\\*|#|\\s*\\[[^\n]]+\\]:)";
|
|
|
|
// Remove markdown symbols from the chunk selection.
|
|
commandProto.unwrap = function (chunk) {
|
|
var txt = new re("([^\\n])\\n(?!(\\n|" + this.prefixes + "))", "g");
|
|
chunk.selection = chunk.selection.replace(txt, "$1 $2");
|
|
};
|
|
|
|
commandProto.wrap = function (chunk, len) {
|
|
this.unwrap(chunk);
|
|
var regex = new re("(.{1," + len + "})( +|$\\n?)", "gm"),
|
|
that = this;
|
|
|
|
chunk.selection = chunk.selection.replace(regex, function (line, marked) {
|
|
if (new re("^" + that.prefixes, "").test(line)) {
|
|
return line;
|
|
}
|
|
return marked + "\n";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/\s+$/, "");
|
|
};
|
|
|
|
commandProto.doBold = function (chunk, postProcessing) {
|
|
return this.doBorI(chunk, postProcessing, 2, this.getString("boldexample"));
|
|
};
|
|
|
|
commandProto.doItalic = function (chunk, postProcessing) {
|
|
return this.doBorI(chunk, postProcessing, 1, this.getString("italicexample"));
|
|
};
|
|
|
|
// chunk: The selected region that will be enclosed with */**
|
|
// nStars: 1 for italics, 2 for bold
|
|
// insertText: If you just click the button without highlighting text, this gets inserted
|
|
commandProto.doBorI = function (chunk, postProcessing, nStars, insertText) {
|
|
|
|
// Get rid of whitespace and fixup newlines.
|
|
chunk.trimWhitespace();
|
|
chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n");
|
|
|
|
// Look for stars before and after. Is the chunk already marked up?
|
|
// note that these regex matches cannot fail
|
|
var starsBefore = /(\**$)/.exec(chunk.before)[0];
|
|
var starsAfter = /(^\**)/.exec(chunk.after)[0];
|
|
|
|
var prevStars = Math.min(starsBefore.length, starsAfter.length);
|
|
|
|
// Remove stars if we have to since the button acts as a toggle.
|
|
if ((prevStars >= nStars) && (prevStars != 2 || nStars != 1)) {
|
|
chunk.before = chunk.before.replace(re("[*]{" + nStars + "}$", ""), "");
|
|
chunk.after = chunk.after.replace(re("^[*]{" + nStars + "}", ""), "");
|
|
}
|
|
else if (!chunk.selection && starsAfter) {
|
|
// It's not really clear why this code is necessary. It just moves
|
|
// some arbitrary stuff around.
|
|
chunk.after = chunk.after.replace(/^([*_]*)/, "");
|
|
chunk.before = chunk.before.replace(/(\s?)$/, "");
|
|
var whitespace = re.$1;
|
|
chunk.before = chunk.before + starsAfter + whitespace;
|
|
}
|
|
else {
|
|
|
|
// In most cases, if you don't have any selected text and click the button
|
|
// you'll get a selected, marked up region with the default text inserted.
|
|
if (!chunk.selection && !starsAfter) {
|
|
chunk.selection = insertText;
|
|
}
|
|
|
|
// Add the true markup.
|
|
var markup = nStars <= 1 ? "*" : "**"; // shouldn't the test be = ?
|
|
chunk.before = chunk.before + markup;
|
|
chunk.after = markup + chunk.after;
|
|
}
|
|
|
|
return;
|
|
};
|
|
|
|
commandProto.stripLinkDefs = function (text, defsToAdd) {
|
|
|
|
text = text.replace(/^[ ]{0,3}\[(\d+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|$)/gm,
|
|
function (totalMatch, id, link, newlines, title) {
|
|
defsToAdd[id] = totalMatch.replace(/\s*$/, "");
|
|
if (newlines) {
|
|
// Strip the title and return that separately.
|
|
defsToAdd[id] = totalMatch.replace(/["(](.+?)[")]$/, "");
|
|
return newlines + title;
|
|
}
|
|
return "";
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
commandProto.addLinkDef = function (chunk, linkDef) {
|
|
|
|
var refNumber = 0; // The current reference number
|
|
var defsToAdd = {}; //
|
|
// Start with a clean slate by removing all previous link definitions.
|
|
chunk.before = this.stripLinkDefs(chunk.before, defsToAdd);
|
|
chunk.selection = this.stripLinkDefs(chunk.selection, defsToAdd);
|
|
chunk.after = this.stripLinkDefs(chunk.after, defsToAdd);
|
|
|
|
var defs = "";
|
|
var regex = /(\[)((?:\[[^\]]*\]|[^\[\]])*)(\][ ]?(?:\n[ ]*)?\[)(\d+)(\])/g;
|
|
|
|
var addDefNumber = function (def) {
|
|
refNumber++;
|
|
def = def.replace(/^[ ]{0,3}\[(\d+)\]:/, " [" + refNumber + "]:");
|
|
defs += "\n" + def;
|
|
};
|
|
|
|
// note that
|
|
// a) the recursive call to getLink cannot go infinite, because by definition
|
|
// of regex, inner is always a proper substring of wholeMatch, and
|
|
// b) more than one level of nesting is neither supported by the regex
|
|
// nor making a lot of sense (the only use case for nesting is a linked image)
|
|
var getLink = function (wholeMatch, before, inner, afterInner, id, end) {
|
|
inner = inner.replace(regex, getLink);
|
|
if (defsToAdd[id]) {
|
|
addDefNumber(defsToAdd[id]);
|
|
return before + inner + afterInner + refNumber + end;
|
|
}
|
|
return wholeMatch;
|
|
};
|
|
|
|
chunk.before = chunk.before.replace(regex, getLink);
|
|
|
|
if (linkDef) {
|
|
addDefNumber(linkDef);
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(regex, getLink);
|
|
}
|
|
|
|
var refOut = refNumber;
|
|
|
|
chunk.after = chunk.after.replace(regex, getLink);
|
|
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/\n*$/, "");
|
|
}
|
|
if (!chunk.after) {
|
|
chunk.selection = chunk.selection.replace(/\n*$/, "");
|
|
}
|
|
|
|
chunk.after += "\n\n" + defs;
|
|
|
|
return refOut;
|
|
};
|
|
|
|
// takes the line as entered into the add link/as image dialog and makes
|
|
// sure the URL and the optinal title are "nice".
|
|
function properlyEncoded(linkdef) {
|
|
return linkdef.replace(/^\s*(.*?)(?:\s+"(.+)")?\s*$/, function (wholematch, link, title) {
|
|
link = link.replace(/\?.*$/, function (querypart) {
|
|
return querypart.replace(/\+/g, " "); // in the query string, a plus and a space are identical
|
|
});
|
|
link = decodeURIComponent(link); // unencode first, to prevent double encoding
|
|
link = encodeURI(link).replace(/'/g, '%27').replace(/\(/g, '%28').replace(/\)/g, '%29');
|
|
link = link.replace(/\?.*$/, function (querypart) {
|
|
return querypart.replace(/\+/g, "%2b"); // since we replaced plus with spaces in the query part, all pluses that now appear where originally encoded
|
|
});
|
|
if (title) {
|
|
title = title.trim ? title.trim() : title.replace(/^\s*/, "").replace(/\s*$/, "");
|
|
title = title.replace(/"/g, "quot;").replace(/\(/g, "(").replace(/\)/g, ")").replace(/</g, "<").replace(/>/g, ">");
|
|
}
|
|
return title ? link + ' "' + title + '"' : link;
|
|
});
|
|
}
|
|
|
|
commandProto.doLinkOrImage = function (chunk, postProcessing, isImage) {
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/\s*!?\[/, /\][ ]?(?:\n[ ]*)?(\[.*?\])?/);
|
|
var background;
|
|
|
|
if (chunk.endTag.length > 1 && chunk.startTag.length > 0) {
|
|
|
|
chunk.startTag = chunk.startTag.replace(/!?\[/, "");
|
|
chunk.endTag = "";
|
|
this.addLinkDef(chunk, null);
|
|
|
|
}
|
|
else {
|
|
|
|
// We're moving start and end tag back into the selection, since (as we're in the else block) we're not
|
|
// *removing* a link, but *adding* one, so whatever findTags() found is now back to being part of the
|
|
// link text. linkEnteredCallback takes care of escaping any brackets.
|
|
chunk.selection = chunk.startTag + chunk.selection + chunk.endTag;
|
|
chunk.startTag = chunk.endTag = "";
|
|
|
|
if (/\n\n/.test(chunk.selection)) {
|
|
this.addLinkDef(chunk, null);
|
|
return;
|
|
}
|
|
var that = this;
|
|
// The function to be executed when you enter a link and press OK or Cancel.
|
|
// Marks up the link and adds the ref.
|
|
var linkEnteredCallback = function (link) {
|
|
|
|
background.parentNode.removeChild(background);
|
|
|
|
if (link !== null) {
|
|
// ( $1
|
|
// [^\\] anything that's not a backslash
|
|
// (?:\\\\)* an even number (this includes zero) of backslashes
|
|
// )
|
|
// (?= followed by
|
|
// [[\]] an opening or closing bracket
|
|
// )
|
|
//
|
|
// In other words, a non-escaped bracket. These have to be escaped now to make sure they
|
|
// don't count as the end of the link or similar.
|
|
// Note that the actual bracket has to be a lookahead, because (in case of to subsequent brackets),
|
|
// the bracket in one match may be the "not a backslash" character in the next match, so it
|
|
// should not be consumed by the first match.
|
|
// The "prepend a space and finally remove it" steps makes sure there is a "not a backslash" at the
|
|
// start of the string, so this also works if the selection begins with a bracket. We cannot solve
|
|
// this by anchoring with ^, because in the case that the selection starts with two brackets, this
|
|
// would mean a zero-width match at the start. Since zero-width matches advance the string position,
|
|
// the first bracket could then not act as the "not a backslash" for the second.
|
|
chunk.selection = (" " + chunk.selection).replace(/([^\\](?:\\\\)*)(?=[[\]])/g, "$1\\").substr(1);
|
|
|
|
var linkDef = " [999]: " + properlyEncoded(link);
|
|
|
|
var num = that.addLinkDef(chunk, linkDef);
|
|
chunk.startTag = isImage ? "![" : "[";
|
|
chunk.endTag = "][" + num + "]";
|
|
|
|
if (!chunk.selection) {
|
|
if (isImage) {
|
|
chunk.selection = that.getString("imagename") || that.getString("imagedescription");
|
|
}
|
|
else {
|
|
chunk.selection = that.getString("linkname") || that.getString("linkdescription");
|
|
}
|
|
}
|
|
}
|
|
postProcessing();
|
|
};
|
|
|
|
background = ui.createBackground();
|
|
|
|
if (isImage) {
|
|
if (!this.hooks.insertImageDialog(linkEnteredCallback))
|
|
ui.prompt(this.getString("imagedialog"), imageDefaultText, linkEnteredCallback, this.getString("ok"), this.getString("cancel"));
|
|
}
|
|
else {
|
|
if (!this.hooks.insertLinkDialog(linkEnteredCallback))
|
|
ui.prompt(this.getString("linkdialog"), linkDefaultText, linkEnteredCallback, this.getString("ok"), this.getString("cancel"));
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// When making a list, hitting shift-enter will put your cursor on the next line
|
|
// at the current indent level.
|
|
commandProto.doAutoindent = function (chunk, postProcessing) {
|
|
|
|
var commandMgr = this,
|
|
fakeSelection = false;
|
|
|
|
chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
|
|
chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
|
|
chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
|
|
|
|
// There's no selection, end the cursor wasn't at the end of the line:
|
|
// The user wants to split the current list item / code line / blockquote line
|
|
// (for the latter it doesn't really matter) in two. Temporarily select the
|
|
// (rest of the) line to achieve this.
|
|
if (!chunk.selection && !/^[ \t]*(?:\n|$)/.test(chunk.after)) {
|
|
chunk.after = chunk.after.replace(/^[^\n]*/, function (wholeMatch) {
|
|
chunk.selection = wholeMatch;
|
|
return "";
|
|
});
|
|
fakeSelection = true;
|
|
}
|
|
|
|
if (/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doList) {
|
|
commandMgr.doList(chunk);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doBlockquote) {
|
|
commandMgr.doBlockquote(chunk);
|
|
}
|
|
}
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doCode) {
|
|
commandMgr.doCode(chunk);
|
|
}
|
|
}
|
|
|
|
if (fakeSelection) {
|
|
chunk.after = chunk.selection + chunk.after;
|
|
chunk.selection = "";
|
|
}
|
|
};
|
|
|
|
commandProto.doBlockquote = function (chunk, postProcessing) {
|
|
|
|
chunk.selection = chunk.selection.replace(/^(\n*)([^\r]+?)(\n*)$/,
|
|
function (totalMatch, newlinesBefore, text, newlinesAfter) {
|
|
chunk.before += newlinesBefore;
|
|
chunk.after = newlinesAfter + chunk.after;
|
|
return text;
|
|
});
|
|
|
|
chunk.before = chunk.before.replace(/(>[ \t]*)$/,
|
|
function (totalMatch, blankLine) {
|
|
chunk.selection = blankLine + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/^(\s|>)+$/, "");
|
|
chunk.selection = chunk.selection || this.getString("quoteexample");
|
|
|
|
// The original code uses a regular expression to find out how much of the
|
|
// text *directly before* the selection already was a blockquote:
|
|
|
|
/*
|
|
if (chunk.before) {
|
|
chunk.before = chunk.before.replace(/\n?$/, "\n");
|
|
}
|
|
chunk.before = chunk.before.replace(/(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*$)/,
|
|
function (totalMatch) {
|
|
chunk.startTag = totalMatch;
|
|
return "";
|
|
});
|
|
*/
|
|
|
|
// This comes down to:
|
|
// Go backwards as many lines a possible, such that each line
|
|
// a) starts with ">", or
|
|
// b) is almost empty, except for whitespace, or
|
|
// c) is preceeded by an unbroken chain of non-empty lines
|
|
// leading up to a line that starts with ">" and at least one more character
|
|
// and in addition
|
|
// d) at least one line fulfills a)
|
|
//
|
|
// Since this is essentially a backwards-moving regex, it's susceptible to
|
|
// catstrophic backtracking and can cause the browser to hang;
|
|
// see e.g. http://meta.stackoverflow.com/questions/9807.
|
|
//
|
|
// Hence we replaced this by a simple state machine that just goes through the
|
|
// lines and checks for a), b), and c).
|
|
|
|
var match = "",
|
|
leftOver = "",
|
|
line;
|
|
if (chunk.before) {
|
|
var lines = chunk.before.replace(/\n$/, "").split("\n");
|
|
var inChain = false;
|
|
for (var i = 0; i < lines.length; i++) {
|
|
var good = false;
|
|
line = lines[i];
|
|
inChain = inChain && line.length > 0; // c) any non-empty line continues the chain
|
|
if (/^>/.test(line)) { // a)
|
|
good = true;
|
|
if (!inChain && line.length > 1) // c) any line that starts with ">" and has at least one more character starts the chain
|
|
inChain = true;
|
|
} else if (/^[ \t]*$/.test(line)) { // b)
|
|
good = true;
|
|
} else {
|
|
good = inChain; // c) the line is not empty and does not start with ">", so it matches if and only if we're in the chain
|
|
}
|
|
if (good) {
|
|
match += line + "\n";
|
|
} else {
|
|
leftOver += match + line;
|
|
match = "\n";
|
|
}
|
|
}
|
|
if (!/(^|\n)>/.test(match)) { // d)
|
|
leftOver += match;
|
|
match = "";
|
|
}
|
|
}
|
|
|
|
chunk.startTag = match;
|
|
chunk.before = leftOver;
|
|
|
|
// end of change
|
|
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/^\n?/, "\n");
|
|
}
|
|
|
|
chunk.after = chunk.after.replace(/^(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*)/,
|
|
function (totalMatch) {
|
|
chunk.endTag = totalMatch;
|
|
return "";
|
|
}
|
|
);
|
|
|
|
var replaceBlanksInTags = function (useBracket) {
|
|
|
|
var replacement = useBracket ? "> " : "";
|
|
|
|
if (chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n((>|\s)*)\n$/,
|
|
function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
if (chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n((>|\s)*)\n/,
|
|
function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
};
|
|
|
|
if (/^(?![ ]{0,3}>)/m.test(chunk.selection)) {
|
|
this.wrap(chunk, SETTINGS.lineLength - 2);
|
|
chunk.selection = chunk.selection.replace(/^/gm, "> ");
|
|
replaceBlanksInTags(true);
|
|
chunk.skipLines();
|
|
} else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
|
|
this.unwrap(chunk);
|
|
replaceBlanksInTags(false);
|
|
|
|
if (!/^(\n|^)[ ]{0,3}>/.test(chunk.selection) && chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n{0,2}$/, "\n\n");
|
|
}
|
|
|
|
if (!/(\n|^)[ ]{0,3}>.*$/.test(chunk.selection) && chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n{0,2}/, "\n\n");
|
|
}
|
|
}
|
|
|
|
chunk.selection = this.hooks.postBlockquoteCreation(chunk.selection);
|
|
|
|
if (!/\n/.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^(> *)/,
|
|
function (wholeMatch, blanks) {
|
|
chunk.startTag += blanks;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
commandProto.doCode = function (chunk, postProcessing) {
|
|
|
|
var hasTextBefore = /\S[ ]*$/.test(chunk.before);
|
|
var hasTextAfter = /^[ ]*\S/.test(chunk.after);
|
|
|
|
// Use 'four space' markdown if the selection is on its own
|
|
// line or is multiline.
|
|
if ((!hasTextAfter && !hasTextBefore) || /\n/.test(chunk.selection)) {
|
|
|
|
chunk.before = chunk.before.replace(/[ ]{4}$/,
|
|
function (totalMatch) {
|
|
chunk.selection = totalMatch + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
var nLinesBack = 1;
|
|
var nLinesForward = 1;
|
|
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
nLinesBack = 0;
|
|
}
|
|
if (/^\n(\t|[ ]{4,})/.test(chunk.after)) {
|
|
nLinesForward = 0;
|
|
}
|
|
|
|
chunk.skipLines(nLinesBack, nLinesForward);
|
|
|
|
if (!chunk.selection) {
|
|
chunk.startTag = " ";
|
|
chunk.selection = this.getString("codeexample");
|
|
}
|
|
else {
|
|
if (/^[ ]{0,3}\S/m.test(chunk.selection)) {
|
|
if (/\n/.test(chunk.selection))
|
|
chunk.selection = chunk.selection.replace(/^/gm, " ");
|
|
else // if it's not multiline, do not select the four added spaces; this is more consistent with the doList behavior
|
|
chunk.before += " ";
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^(?:[ ]{4}|[ ]{0,3}\t)/gm, "");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Use backticks (`) to delimit the code block.
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/`/, /`/);
|
|
|
|
if (!chunk.startTag && !chunk.endTag) {
|
|
chunk.startTag = chunk.endTag = "`";
|
|
if (!chunk.selection) {
|
|
chunk.selection = this.getString("codeexample");
|
|
}
|
|
}
|
|
else if (chunk.endTag && !chunk.startTag) {
|
|
chunk.before += chunk.endTag;
|
|
chunk.endTag = "";
|
|
}
|
|
else {
|
|
chunk.startTag = chunk.endTag = "";
|
|
}
|
|
}
|
|
};
|
|
|
|
commandProto.doList = function (chunk, postProcessing, isNumberedList) {
|
|
|
|
// These are identical except at the very beginning and end.
|
|
// Should probably use the regex extension function to make this clearer.
|
|
var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/;
|
|
var nextItemsRegex = /^\n*(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*/;
|
|
|
|
// The default bullet is a dash but others are possible.
|
|
// This has nothing to do with the particular HTML bullet,
|
|
// it's just a markdown bullet.
|
|
var bullet = "-";
|
|
|
|
// The number in a numbered list.
|
|
var num = 1;
|
|
|
|
// Get the item prefix - e.g. " 1. " for a numbered list, " - " for a bulleted list.
|
|
var getItemPrefix = function () {
|
|
var prefix;
|
|
if (isNumberedList) {
|
|
prefix = " " + num + ". ";
|
|
num++;
|
|
}
|
|
else {
|
|
prefix = " " + bullet + " ";
|
|
}
|
|
return prefix;
|
|
};
|
|
|
|
// Fixes the prefixes of the other list items.
|
|
var getPrefixedItem = function (itemText) {
|
|
|
|
// The numbering flag is unset when called by autoindent.
|
|
if (isNumberedList === undefined) {
|
|
isNumberedList = /^\s*\d/.test(itemText);
|
|
}
|
|
|
|
// Renumber/bullet the list element.
|
|
itemText = itemText.replace(/^[ ]{0,3}([*+-]|\d+[.])\s/gm,
|
|
function (_) {
|
|
return getItemPrefix();
|
|
});
|
|
|
|
return itemText;
|
|
};
|
|
|
|
chunk.findTags(/(\n|^)*[ ]{0,3}([*+-]|\d+[.])\s+/, null);
|
|
|
|
if (chunk.before && !/\n$/.test(chunk.before) && !/^\n/.test(chunk.startTag)) {
|
|
chunk.before += chunk.startTag;
|
|
chunk.startTag = "";
|
|
}
|
|
|
|
if (chunk.startTag) {
|
|
|
|
var hasDigits = /\d+[.]/.test(chunk.startTag);
|
|
chunk.startTag = "";
|
|
chunk.selection = chunk.selection.replace(/\n[ ]{4}/g, "\n");
|
|
this.unwrap(chunk);
|
|
chunk.skipLines();
|
|
|
|
if (hasDigits) {
|
|
// Have to renumber the bullet points if this is a numbered list.
|
|
chunk.after = chunk.after.replace(nextItemsRegex, getPrefixedItem);
|
|
}
|
|
if (isNumberedList == hasDigits) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
var nLinesUp = 1;
|
|
|
|
chunk.before = chunk.before.replace(previousItemsRegex,
|
|
function (itemText) {
|
|
if (/^\s*([*+-])/.test(itemText)) {
|
|
bullet = re.$1;
|
|
}
|
|
nLinesUp = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
if (!chunk.selection) {
|
|
chunk.selection = this.getString("litem");
|
|
}
|
|
|
|
var prefix = getItemPrefix();
|
|
|
|
var nLinesDown = 1;
|
|
|
|
chunk.after = chunk.after.replace(nextItemsRegex,
|
|
function (itemText) {
|
|
nLinesDown = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
chunk.trimWhitespace(true);
|
|
chunk.skipLines(nLinesUp, nLinesDown, true);
|
|
chunk.startTag = prefix;
|
|
var spaces = prefix.replace(/./g, " ");
|
|
this.wrap(chunk, SETTINGS.lineLength - spaces.length);
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
|
|
|
|
};
|
|
|
|
commandProto.doHeading = function (chunk, postProcessing) {
|
|
|
|
// Remove leading/trailing whitespace and reduce internal spaces to single spaces.
|
|
chunk.selection = chunk.selection.replace(/\s+/g, " ");
|
|
chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/g, "");
|
|
|
|
// If we clicked the button with no selected text, we just
|
|
// make a level 2 hash header around some default text.
|
|
if (!chunk.selection) {
|
|
chunk.startTag = "## ";
|
|
chunk.selection = this.getString("headingexample");
|
|
chunk.endTag = " ##";
|
|
return;
|
|
}
|
|
|
|
var headerLevel = 0; // The existing header level of the selected text.
|
|
|
|
// Remove any existing hash heading markdown and save the header level.
|
|
chunk.findTags(/#+[ ]*/, /[ ]*#+/);
|
|
if (/#+/.test(chunk.startTag)) {
|
|
headerLevel = re.lastMatch.length;
|
|
}
|
|
chunk.startTag = chunk.endTag = "";
|
|
|
|
// Try to get the current header level by looking for - and = in the line
|
|
// below the selection.
|
|
chunk.findTags(null, /\s?(-+|=+)/);
|
|
if (/=+/.test(chunk.endTag)) {
|
|
headerLevel = 1;
|
|
}
|
|
if (/-+/.test(chunk.endTag)) {
|
|
headerLevel = 2;
|
|
}
|
|
|
|
// Skip to the next line so we can create the header markdown.
|
|
chunk.startTag = chunk.endTag = "";
|
|
chunk.skipLines(1, 1);
|
|
|
|
// We make a level 2 header if there is no current header.
|
|
// If there is a header level, we substract one from the header level.
|
|
// If it's already a level 1 header, it's removed.
|
|
var headerLevelToCreate = headerLevel == 0 ? 2 : headerLevel - 1;
|
|
|
|
if (headerLevelToCreate > 0) {
|
|
|
|
// The button only creates level 1 and 2 underline headers.
|
|
// Why not have it iterate over hash header levels? Wouldn't that be easier and cleaner?
|
|
var headerChar = headerLevelToCreate >= 2 ? "-" : "=";
|
|
var len = chunk.selection.length;
|
|
if (len > SETTINGS.lineLength) {
|
|
len = SETTINGS.lineLength;
|
|
}
|
|
chunk.endTag = "\n";
|
|
while (len--) {
|
|
chunk.endTag += headerChar;
|
|
}
|
|
}
|
|
};
|
|
|
|
commandProto.doHorizontalRule = function (chunk, postProcessing) {
|
|
chunk.startTag = "----------\n";
|
|
chunk.selection = "";
|
|
chunk.skipLines(2, 1, true);
|
|
}
|
|
|
|
commandProto.doMore = function (chunk, postProcessing) {
|
|
chunk.startTag = "<!--more-->\n\n";
|
|
chunk.selection = "";
|
|
chunk.skipLines(2, 1, true);
|
|
}
|
|
|
|
commandProto.doTab = function (chunk, postProcessing) {
|
|
chunk.startTag = " ";
|
|
chunk.selection = "";
|
|
}
|
|
|
|
function FullScreenManager (hooks, getString) {
|
|
this.fullScreenBind = false;
|
|
this.hooks = hooks;
|
|
this.getString = getString;
|
|
this.isFakeFullScreen = false;
|
|
}
|
|
|
|
function getFullScreenAdapter () {
|
|
var selector = {
|
|
fullScreenChange : ['onfullscreenchange', 'onwebkitfullscreenchange', 'onmozfullscreenchange', 'onmsfullscreenchange'],
|
|
requestFullscreen : ['requestFullscreen', 'webkitRequestFullScreen', 'mozRequestFullScreen', 'msRequestFullScreen'],
|
|
cancelFullscreen : ['cancelFullscreen', 'exitFullScreen', 'webkitCancelFullScreen', 'mozCancelFullScreen', 'msCancelFullScreen']
|
|
}, adapter = {};
|
|
|
|
for (var name in selector) {
|
|
var len = selector[name].length, found = false;
|
|
|
|
for (var i = 0; i < len; i ++) {
|
|
var method = selector[name][i];
|
|
|
|
if ('undefined' != typeof(document[method]) || 'undefined' != typeof(document.body[method])) {
|
|
adapter[name] = method;
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return adapter;
|
|
};
|
|
|
|
function isFullScreen () {
|
|
return document.fullScreen ||
|
|
document.mozFullScreen ||
|
|
document.webkitIsFullScreen ||
|
|
document.msIsFullScreen;
|
|
};
|
|
|
|
// fullscreen
|
|
FullScreenManager.prototype.doFullScreen = function (buttons, enter) {
|
|
var adapter = getFullScreenAdapter(), self = this;
|
|
|
|
if (!adapter) {
|
|
alert(self.getString('fullscreenUnsupport'));
|
|
return false;
|
|
}
|
|
|
|
if (!this.fullScreenBind) {
|
|
util.addEvent(document, adapter.fullScreenChange.substring(2), function () {
|
|
if (!isFullScreen()) {
|
|
buttons.fullscreen.style.display = '';
|
|
buttons.exitFullscreen.style.display = 'none';
|
|
self.hooks.exitFullScreen();
|
|
} else {
|
|
buttons.fullscreen.style.display = 'none';
|
|
buttons.exitFullscreen.style.display = '';
|
|
self.hooks.enterFullScreen();
|
|
}
|
|
});
|
|
|
|
this.fullScreenBind = true;
|
|
}
|
|
|
|
if (enter) {
|
|
if (self.isFakeFullScreen) {
|
|
document.body[adapter.requestFullscreen]('webkitRequestFullScreen' == adapter.requestFullscreen
|
|
? Element.ALLOW_KEYBOARD_INPUT : null);
|
|
self.isFakeFullScreen = false;
|
|
} else if (!isFullScreen()) {
|
|
buttons.exitFullscreen.style.display = '';
|
|
self.hooks.enterFakeFullScreen();
|
|
self.isFakeFullScreen = true;
|
|
}
|
|
} else {
|
|
if (self.isFakeFullScreen) {
|
|
buttons.exitFullscreen.style.display = 'none';
|
|
self.hooks.exitFullScreen();
|
|
} else if (isFullScreen()) {
|
|
document[adapter.cancelFullscreen]();
|
|
}
|
|
|
|
self.isFakeFullScreen = false;
|
|
}
|
|
};
|
|
})();
|