File modules/editor/codemirror/mode/ruby/ruby.js

Last commit: Sun Dec 17 01:14:09 2017 +0100	Jan Dankert	Integration eines weiteren Code-Editors: Codemirror. Demnächst müssen wir hier mal aufräumen und andere Editoren rauswerfen.


     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"));
     7   else if (typeof define == "function" && define.amd) // AMD
     8     define(["../../lib/codemirror"], mod);
     9   else // Plain browser env
    10     mod(CodeMirror);
    11 })(function(CodeMirror) {
    12 "use strict";
    13 
    14 CodeMirror.defineMode("ruby", function(config) {
    15   function wordObj(words) {
    16     var o = {};
    17     for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
    18     return o;
    19   }
    20   var keywords = wordObj([
    21     "alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else",
    22     "elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or",
    23     "redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless",
    24     "until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc",
    25     "caller", "lambda", "proc", "public", "protected", "private", "require", "load",
    26     "require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__"
    27   ]);
    28   var indentWords = wordObj(["def", "class", "case", "for", "while", "until", "module", "then",
    29                              "catch", "loop", "proc", "begin"]);
    30   var dedentWords = wordObj(["end", "until"]);
    31   var matching = {"[": "]", "{": "}", "(": ")"};
    32   var curPunc;
    33 
    34   function chain(newtok, stream, state) {
    35     state.tokenize.push(newtok);
    36     return newtok(stream, state);
    37   }
    38 
    39   function tokenBase(stream, state) {
    40     if (stream.sol() && stream.match("=begin") && stream.eol()) {
    41       state.tokenize.push(readBlockComment);
    42       return "comment";
    43     }
    44     if (stream.eatSpace()) return null;
    45     var ch = stream.next(), m;
    46     if (ch == "`" || ch == "'" || ch == '"') {
    47       return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state);
    48     } else if (ch == "/") {
    49       if (regexpAhead(stream))
    50         return chain(readQuoted(ch, "string-2", true), stream, state);
    51       else
    52         return "operator";
    53     } else if (ch == "%") {
    54       var style = "string", embed = true;
    55       if (stream.eat("s")) style = "atom";
    56       else if (stream.eat(/[WQ]/)) style = "string";
    57       else if (stream.eat(/[r]/)) style = "string-2";
    58       else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; }
    59       var delim = stream.eat(/[^\w\s=]/);
    60       if (!delim) return "operator";
    61       if (matching.propertyIsEnumerable(delim)) delim = matching[delim];
    62       return chain(readQuoted(delim, style, embed, true), stream, state);
    63     } else if (ch == "#") {
    64       stream.skipToEnd();
    65       return "comment";
    66     } else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
    67       return chain(readHereDoc(m[1]), stream, state);
    68     } else if (ch == "0") {
    69       if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/);
    70       else if (stream.eat("b")) stream.eatWhile(/[01]/);
    71       else stream.eatWhile(/[0-7]/);
    72       return "number";
    73     } else if (/\d/.test(ch)) {
    74       stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/);
    75       return "number";
    76     } else if (ch == "?") {
    77       while (stream.match(/^\\[CM]-/)) {}
    78       if (stream.eat("\\")) stream.eatWhile(/\w/);
    79       else stream.next();
    80       return "string";
    81     } else if (ch == ":") {
    82       if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state);
    83       if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state);
    84 
    85       // :> :>> :< :<< are valid symbols
    86       if (stream.eat(/[\<\>]/)) {
    87         stream.eat(/[\<\>]/);
    88         return "atom";
    89       }
    90 
    91       // :+ :- :/ :* :| :& :! are valid symbols
    92       if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) {
    93         return "atom";
    94       }
    95 
    96       // Symbols can't start by a digit
    97       if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) {
    98         stream.eatWhile(/[\w$\xa1-\uffff]/);
    99         // Only one ? ! = is allowed and only as the last character
   100         stream.eat(/[\?\!\=]/);
   101         return "atom";
   102       }
   103       return "operator";
   104     } else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) {
   105       stream.eat("@");
   106       stream.eatWhile(/[\w\xa1-\uffff]/);
   107       return "variable-2";
   108     } else if (ch == "$") {
   109       if (stream.eat(/[a-zA-Z_]/)) {
   110         stream.eatWhile(/[\w]/);
   111       } else if (stream.eat(/\d/)) {
   112         stream.eat(/\d/);
   113       } else {
   114         stream.next(); // Must be a special global like $: or $!
   115       }
   116       return "variable-3";
   117     } else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) {
   118       stream.eatWhile(/[\w\xa1-\uffff]/);
   119       stream.eat(/[\?\!]/);
   120       if (stream.eat(":")) return "atom";
   121       return "ident";
   122     } else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) {
   123       curPunc = "|";
   124       return null;
   125     } else if (/[\(\)\[\]{}\\;]/.test(ch)) {
   126       curPunc = ch;
   127       return null;
   128     } else if (ch == "-" && stream.eat(">")) {
   129       return "arrow";
   130     } else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) {
   131       var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
   132       if (ch == "." && !more) curPunc = ".";
   133       return "operator";
   134     } else {
   135       return null;
   136     }
   137   }
   138 
   139   function regexpAhead(stream) {
   140     var start = stream.pos, depth = 0, next, found = false, escaped = false
   141     while ((next = stream.next()) != null) {
   142       if (!escaped) {
   143         if ("[{(".indexOf(next) > -1) {
   144           depth++
   145         } else if ("]})".indexOf(next) > -1) {
   146           depth--
   147           if (depth < 0) break
   148         } else if (next == "/" && depth == 0) {
   149           found = true
   150           break
   151         }
   152         escaped = next == "\\"
   153       } else {
   154         escaped = false
   155       }
   156     }
   157     stream.backUp(stream.pos - start)
   158     return found
   159   }
   160 
   161   function tokenBaseUntilBrace(depth) {
   162     if (!depth) depth = 1;
   163     return function(stream, state) {
   164       if (stream.peek() == "}") {
   165         if (depth == 1) {
   166           state.tokenize.pop();
   167           return state.tokenize[state.tokenize.length-1](stream, state);
   168         } else {
   169           state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1);
   170         }
   171       } else if (stream.peek() == "{") {
   172         state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1);
   173       }
   174       return tokenBase(stream, state);
   175     };
   176   }
   177   function tokenBaseOnce() {
   178     var alreadyCalled = false;
   179     return function(stream, state) {
   180       if (alreadyCalled) {
   181         state.tokenize.pop();
   182         return state.tokenize[state.tokenize.length-1](stream, state);
   183       }
   184       alreadyCalled = true;
   185       return tokenBase(stream, state);
   186     };
   187   }
   188   function readQuoted(quote, style, embed, unescaped) {
   189     return function(stream, state) {
   190       var escaped = false, ch;
   191 
   192       if (state.context.type === 'read-quoted-paused') {
   193         state.context = state.context.prev;
   194         stream.eat("}");
   195       }
   196 
   197       while ((ch = stream.next()) != null) {
   198         if (ch == quote && (unescaped || !escaped)) {
   199           state.tokenize.pop();
   200           break;
   201         }
   202         if (embed && ch == "#" && !escaped) {
   203           if (stream.eat("{")) {
   204             if (quote == "}") {
   205               state.context = {prev: state.context, type: 'read-quoted-paused'};
   206             }
   207             state.tokenize.push(tokenBaseUntilBrace());
   208             break;
   209           } else if (/[@\$]/.test(stream.peek())) {
   210             state.tokenize.push(tokenBaseOnce());
   211             break;
   212           }
   213         }
   214         escaped = !escaped && ch == "\\";
   215       }
   216       return style;
   217     };
   218   }
   219   function readHereDoc(phrase) {
   220     return function(stream, state) {
   221       if (stream.match(phrase)) state.tokenize.pop();
   222       else stream.skipToEnd();
   223       return "string";
   224     };
   225   }
   226   function readBlockComment(stream, state) {
   227     if (stream.sol() && stream.match("=end") && stream.eol())
   228       state.tokenize.pop();
   229     stream.skipToEnd();
   230     return "comment";
   231   }
   232 
   233   return {
   234     startState: function() {
   235       return {tokenize: [tokenBase],
   236               indented: 0,
   237               context: {type: "top", indented: -config.indentUnit},
   238               continuedLine: false,
   239               lastTok: null,
   240               varList: false};
   241     },
   242 
   243     token: function(stream, state) {
   244       curPunc = null;
   245       if (stream.sol()) state.indented = stream.indentation();
   246       var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype;
   247       var thisTok = curPunc;
   248       if (style == "ident") {
   249         var word = stream.current();
   250         style = state.lastTok == "." ? "property"
   251           : keywords.propertyIsEnumerable(stream.current()) ? "keyword"
   252           : /^[A-Z]/.test(word) ? "tag"
   253           : (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def"
   254           : "variable";
   255         if (style == "keyword") {
   256           thisTok = word;
   257           if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
   258           else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
   259           else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
   260             kwtype = "indent";
   261           else if (word == "do" && state.context.indented < state.indented)
   262             kwtype = "indent";
   263         }
   264       }
   265       if (curPunc || (style && style != "comment")) state.lastTok = thisTok;
   266       if (curPunc == "|") state.varList = !state.varList;
   267 
   268       if (kwtype == "indent" || /[\(\[\{]/.test(curPunc))
   269         state.context = {prev: state.context, type: curPunc || style, indented: state.indented};
   270       else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev)
   271         state.context = state.context.prev;
   272 
   273       if (stream.eol())
   274         state.continuedLine = (curPunc == "\\" || style == "operator");
   275       return style;
   276     },
   277 
   278     indent: function(state, textAfter) {
   279       if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0;
   280       var firstChar = textAfter && textAfter.charAt(0);
   281       var ct = state.context;
   282       var closing = ct.type == matching[firstChar] ||
   283         ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter);
   284       return ct.indented + (closing ? 0 : config.indentUnit) +
   285         (state.continuedLine ? config.indentUnit : 0);
   286     },
   287 
   288     electricInput: /^\s*(?:end|rescue|elsif|else|\})$/,
   289     lineComment: "#",
   290     fold: "indent"
   291   };
   292 });
   293 
   294 CodeMirror.defineMIME("text/x-ruby", "ruby");
   295 
   296 });



Download modules/editor/codemirror/mode/ruby/ruby.js


History
Sun, 17 Dec 2017 01:14:09 +0100	Jan Dankert	Integration eines weiteren Code-Editors: Codemirror. Demnächst müssen wir hier mal aufräumen und andere Editoren rauswerfen.