gfm.js (5103B)
1 // CodeMirror, copyright (c) by Marijn Haverbeke and others 2 // Distributed under an MIT license: http://codemirror.net/LICENSE 3 4 (function(mod) { 5 if (typeof exports == "object" && typeof module == "object") // CommonJS 6 mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay")); 7 else if (typeof define == "function" && define.amd) // AMD 8 define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod); 9 else // Plain browser env 10 mod(CodeMirror); 11 })(function(CodeMirror) { 12 "use strict"; 13 14 var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i 15 16 CodeMirror.defineMode("gfm", function(config, modeConfig) { 17 var codeDepth = 0; 18 function blankLine(state) { 19 state.code = false; 20 return null; 21 } 22 var gfmOverlay = { 23 startState: function() { 24 return { 25 code: false, 26 codeBlock: false, 27 ateSpace: false 28 }; 29 }, 30 copyState: function(s) { 31 return { 32 code: s.code, 33 codeBlock: s.codeBlock, 34 ateSpace: s.ateSpace 35 }; 36 }, 37 token: function(stream, state) { 38 state.combineTokens = null; 39 40 // Hack to prevent formatting override inside code blocks (block and inline) 41 if (state.codeBlock) { 42 if (stream.match(/^```+/)) { 43 state.codeBlock = false; 44 return null; 45 } 46 stream.skipToEnd(); 47 return null; 48 } 49 if (stream.sol()) { 50 state.code = false; 51 } 52 if (stream.sol() && stream.match(/^```+/)) { 53 stream.skipToEnd(); 54 state.codeBlock = true; 55 return null; 56 } 57 // If this block is changed, it may need to be updated in Markdown mode 58 if (stream.peek() === '`') { 59 stream.next(); 60 var before = stream.pos; 61 stream.eatWhile('`'); 62 var difference = 1 + stream.pos - before; 63 if (!state.code) { 64 codeDepth = difference; 65 state.code = true; 66 } else { 67 if (difference === codeDepth) { // Must be exact 68 state.code = false; 69 } 70 } 71 return null; 72 } else if (state.code) { 73 stream.next(); 74 return null; 75 } 76 // Check if space. If so, links can be formatted later on 77 if (stream.eatSpace()) { 78 state.ateSpace = true; 79 return null; 80 } 81 if (stream.sol() || state.ateSpace) { 82 state.ateSpace = false; 83 if (modeConfig.gitHubSpice !== false) { 84 if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?=.{0,6}\d)(?:[a-f0-9]{7,40}\b)/)) { 85 // User/Project@SHA 86 // User@SHA 87 // SHA 88 state.combineTokens = true; 89 return "link"; 90 } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) { 91 // User/Project#Num 92 // User#Num 93 // #Num 94 state.combineTokens = true; 95 return "link"; 96 } 97 } 98 } 99 if (stream.match(urlRE) && 100 stream.string.slice(stream.start - 2, stream.start) != "](" && 101 (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) { 102 // URLs 103 // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls 104 // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine 105 // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL 106 state.combineTokens = true; 107 return "link"; 108 } 109 stream.next(); 110 return null; 111 }, 112 blankLine: blankLine 113 }; 114 115 var markdownConfig = { 116 taskLists: true, 117 strikethrough: true, 118 emoji: true 119 }; 120 for (var attr in modeConfig) { 121 markdownConfig[attr] = modeConfig[attr]; 122 } 123 markdownConfig.name = "markdown"; 124 return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay); 125 126 }, "markdown"); 127 128 CodeMirror.defineMIME("text/x-gfm", "gfm"); 129 });