File modules/editor/codemirror/mode/python/python.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   function wordRegexp(words) {
    15     return new RegExp("^((" + words.join(")|(") + "))\\b");
    16   }
    17 
    18   var wordOperators = wordRegexp(["and", "or", "not", "is"]);
    19   var commonKeywords = ["as", "assert", "break", "class", "continue",
    20                         "def", "del", "elif", "else", "except", "finally",
    21                         "for", "from", "global", "if", "import",
    22                         "lambda", "pass", "raise", "return",
    23                         "try", "while", "with", "yield", "in"];
    24   var commonBuiltins = ["abs", "all", "any", "bin", "bool", "bytearray", "callable", "chr",
    25                         "classmethod", "compile", "complex", "delattr", "dict", "dir", "divmod",
    26                         "enumerate", "eval", "filter", "float", "format", "frozenset",
    27                         "getattr", "globals", "hasattr", "hash", "help", "hex", "id",
    28                         "input", "int", "isinstance", "issubclass", "iter", "len",
    29                         "list", "locals", "map", "max", "memoryview", "min", "next",
    30                         "object", "oct", "open", "ord", "pow", "property", "range",
    31                         "repr", "reversed", "round", "set", "setattr", "slice",
    32                         "sorted", "staticmethod", "str", "sum", "super", "tuple",
    33                         "type", "vars", "zip", "__import__", "NotImplemented",
    34                         "Ellipsis", "__debug__"];
    35   CodeMirror.registerHelper("hintWords", "python", commonKeywords.concat(commonBuiltins));
    36 
    37   function top(state) {
    38     return state.scopes[state.scopes.length - 1];
    39   }
    40 
    41   CodeMirror.defineMode("python", function(conf, parserConf) {
    42     var ERRORCLASS = "error";
    43 
    44     var delimiters = parserConf.delimiters || parserConf.singleDelimiters || /^[\(\)\[\]\{\}@,:`=;\.]/;
    45     //               (Backwards-compatiblity with old, cumbersome config system)
    46     var operators = [parserConf.singleOperators, parserConf.doubleOperators, parserConf.doubleDelimiters, parserConf.tripleDelimiters,
    47                      parserConf.operators || /^([-+*/%\/&|^]=?|[<>=]+|\/\/=?|\*\*=?|!=|[~!@])/]
    48     for (var i = 0; i < operators.length; i++) if (!operators[i]) operators.splice(i--, 1)
    49 
    50     var hangingIndent = parserConf.hangingIndent || conf.indentUnit;
    51 
    52     var myKeywords = commonKeywords, myBuiltins = commonBuiltins;
    53     if (parserConf.extra_keywords != undefined)
    54       myKeywords = myKeywords.concat(parserConf.extra_keywords);
    55 
    56     if (parserConf.extra_builtins != undefined)
    57       myBuiltins = myBuiltins.concat(parserConf.extra_builtins);
    58 
    59     var py3 = !(parserConf.version && Number(parserConf.version) < 3)
    60     if (py3) {
    61       // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator
    62       var identifiers = parserConf.identifiers|| /^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*/;
    63       myKeywords = myKeywords.concat(["nonlocal", "False", "True", "None", "async", "await"]);
    64       myBuiltins = myBuiltins.concat(["ascii", "bytes", "exec", "print"]);
    65       var stringPrefixes = new RegExp("^(([rbuf]|(br))?('{3}|\"{3}|['\"]))", "i");
    66     } else {
    67       var identifiers = parserConf.identifiers|| /^[_A-Za-z][_A-Za-z0-9]*/;
    68       myKeywords = myKeywords.concat(["exec", "print"]);
    69       myBuiltins = myBuiltins.concat(["apply", "basestring", "buffer", "cmp", "coerce", "execfile",
    70                                       "file", "intern", "long", "raw_input", "reduce", "reload",
    71                                       "unichr", "unicode", "xrange", "False", "True", "None"]);
    72       var stringPrefixes = new RegExp("^(([rubf]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i");
    73     }
    74     var keywords = wordRegexp(myKeywords);
    75     var builtins = wordRegexp(myBuiltins);
    76 
    77     // tokenizers
    78     function tokenBase(stream, state) {
    79       if (stream.sol()) state.indent = stream.indentation()
    80       // Handle scope changes
    81       if (stream.sol() && top(state).type == "py") {
    82         var scopeOffset = top(state).offset;
    83         if (stream.eatSpace()) {
    84           var lineOffset = stream.indentation();
    85           if (lineOffset > scopeOffset)
    86             pushPyScope(state);
    87           else if (lineOffset < scopeOffset && dedent(stream, state) && stream.peek() != "#")
    88             state.errorToken = true;
    89           return null;
    90         } else {
    91           var style = tokenBaseInner(stream, state);
    92           if (scopeOffset > 0 && dedent(stream, state))
    93             style += " " + ERRORCLASS;
    94           return style;
    95         }
    96       }
    97       return tokenBaseInner(stream, state);
    98     }
    99 
   100     function tokenBaseInner(stream, state) {
   101       if (stream.eatSpace()) return null;
   102 
   103       var ch = stream.peek();
   104 
   105       // Handle Comments
   106       if (ch == "#") {
   107         stream.skipToEnd();
   108         return "comment";
   109       }
   110 
   111       // Handle Number Literals
   112       if (stream.match(/^[0-9\.]/, false)) {
   113         var floatLiteral = false;
   114         // Floats
   115         if (stream.match(/^[\d_]*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; }
   116         if (stream.match(/^[\d_]+\.\d*/)) { floatLiteral = true; }
   117         if (stream.match(/^\.\d+/)) { floatLiteral = true; }
   118         if (floatLiteral) {
   119           // Float literals may be "imaginary"
   120           stream.eat(/J/i);
   121           return "number";
   122         }
   123         // Integers
   124         var intLiteral = false;
   125         // Hex
   126         if (stream.match(/^0x[0-9a-f_]+/i)) intLiteral = true;
   127         // Binary
   128         if (stream.match(/^0b[01_]+/i)) intLiteral = true;
   129         // Octal
   130         if (stream.match(/^0o[0-7_]+/i)) intLiteral = true;
   131         // Decimal
   132         if (stream.match(/^[1-9][\d_]*(e[\+\-]?[\d_]+)?/)) {
   133           // Decimal literals may be "imaginary"
   134           stream.eat(/J/i);
   135           // TODO - Can you have imaginary longs?
   136           intLiteral = true;
   137         }
   138         // Zero by itself with no other piece of number.
   139         if (stream.match(/^0(?![\dx])/i)) intLiteral = true;
   140         if (intLiteral) {
   141           // Integer literals may be "long"
   142           stream.eat(/L/i);
   143           return "number";
   144         }
   145       }
   146 
   147       // Handle Strings
   148       if (stream.match(stringPrefixes)) {
   149         state.tokenize = tokenStringFactory(stream.current());
   150         return state.tokenize(stream, state);
   151       }
   152 
   153       for (var i = 0; i < operators.length; i++)
   154         if (stream.match(operators[i])) return "operator"
   155 
   156       if (stream.match(delimiters)) return "punctuation";
   157 
   158       if (state.lastToken == "." && stream.match(identifiers))
   159         return "property";
   160 
   161       if (stream.match(keywords) || stream.match(wordOperators))
   162         return "keyword";
   163 
   164       if (stream.match(builtins))
   165         return "builtin";
   166 
   167       if (stream.match(/^(self|cls)\b/))
   168         return "variable-2";
   169 
   170       if (stream.match(identifiers)) {
   171         if (state.lastToken == "def" || state.lastToken == "class")
   172           return "def";
   173         return "variable";
   174       }
   175 
   176       // Handle non-detected items
   177       stream.next();
   178       return ERRORCLASS;
   179     }
   180 
   181     function tokenStringFactory(delimiter) {
   182       while ("rubf".indexOf(delimiter.charAt(0).toLowerCase()) >= 0)
   183         delimiter = delimiter.substr(1);
   184 
   185       var singleline = delimiter.length == 1;
   186       var OUTCLASS = "string";
   187 
   188       function tokenString(stream, state) {
   189         while (!stream.eol()) {
   190           stream.eatWhile(/[^'"\\]/);
   191           if (stream.eat("\\")) {
   192             stream.next();
   193             if (singleline && stream.eol())
   194               return OUTCLASS;
   195           } else if (stream.match(delimiter)) {
   196             state.tokenize = tokenBase;
   197             return OUTCLASS;
   198           } else {
   199             stream.eat(/['"]/);
   200           }
   201         }
   202         if (singleline) {
   203           if (parserConf.singleLineStringErrors)
   204             return ERRORCLASS;
   205           else
   206             state.tokenize = tokenBase;
   207         }
   208         return OUTCLASS;
   209       }
   210       tokenString.isString = true;
   211       return tokenString;
   212     }
   213 
   214     function pushPyScope(state) {
   215       while (top(state).type != "py") state.scopes.pop()
   216       state.scopes.push({offset: top(state).offset + conf.indentUnit,
   217                          type: "py",
   218                          align: null})
   219     }
   220 
   221     function pushBracketScope(stream, state, type) {
   222       var align = stream.match(/^([\s\[\{\(]|#.*)*$/, false) ? null : stream.column() + 1
   223       state.scopes.push({offset: state.indent + hangingIndent,
   224                          type: type,
   225                          align: align})
   226     }
   227 
   228     function dedent(stream, state) {
   229       var indented = stream.indentation();
   230       while (state.scopes.length > 1 && top(state).offset > indented) {
   231         if (top(state).type != "py") return true;
   232         state.scopes.pop();
   233       }
   234       return top(state).offset != indented;
   235     }
   236 
   237     function tokenLexer(stream, state) {
   238       if (stream.sol()) state.beginningOfLine = true;
   239 
   240       var style = state.tokenize(stream, state);
   241       var current = stream.current();
   242 
   243       // Handle decorators
   244       if (state.beginningOfLine && current == "@")
   245         return stream.match(identifiers, false) ? "meta" : py3 ? "operator" : ERRORCLASS;
   246 
   247       if (/\S/.test(current)) state.beginningOfLine = false;
   248 
   249       if ((style == "variable" || style == "builtin")
   250           && state.lastToken == "meta")
   251         style = "meta";
   252 
   253       // Handle scope changes.
   254       if (current == "pass" || current == "return")
   255         state.dedent += 1;
   256 
   257       if (current == "lambda") state.lambda = true;
   258       if (current == ":" && !state.lambda && top(state).type == "py")
   259         pushPyScope(state);
   260 
   261       var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1;
   262       if (delimiter_index != -1)
   263         pushBracketScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
   264 
   265       delimiter_index = "])}".indexOf(current);
   266       if (delimiter_index != -1) {
   267         if (top(state).type == current) state.indent = state.scopes.pop().offset - hangingIndent
   268         else return ERRORCLASS;
   269       }
   270       if (state.dedent > 0 && stream.eol() && top(state).type == "py") {
   271         if (state.scopes.length > 1) state.scopes.pop();
   272         state.dedent -= 1;
   273       }
   274 
   275       return style;
   276     }
   277 
   278     var external = {
   279       startState: function(basecolumn) {
   280         return {
   281           tokenize: tokenBase,
   282           scopes: [{offset: basecolumn || 0, type: "py", align: null}],
   283           indent: basecolumn || 0,
   284           lastToken: null,
   285           lambda: false,
   286           dedent: 0
   287         };
   288       },
   289 
   290       token: function(stream, state) {
   291         var addErr = state.errorToken;
   292         if (addErr) state.errorToken = false;
   293         var style = tokenLexer(stream, state);
   294 
   295         if (style && style != "comment")
   296           state.lastToken = (style == "keyword" || style == "punctuation") ? stream.current() : style;
   297         if (style == "punctuation") style = null;
   298 
   299         if (stream.eol() && state.lambda)
   300           state.lambda = false;
   301         return addErr ? style + " " + ERRORCLASS : style;
   302       },
   303 
   304       indent: function(state, textAfter) {
   305         if (state.tokenize != tokenBase)
   306           return state.tokenize.isString ? CodeMirror.Pass : 0;
   307 
   308         var scope = top(state), closing = scope.type == textAfter.charAt(0)
   309         if (scope.align != null)
   310           return scope.align - (closing ? 1 : 0)
   311         else
   312           return scope.offset - (closing ? hangingIndent : 0)
   313       },
   314 
   315       electricInput: /^\s*[\}\]\)]$/,
   316       closeBrackets: {triples: "'\""},
   317       lineComment: "#",
   318       fold: "indent"
   319     };
   320     return external;
   321   });
   322 
   323   CodeMirror.defineMIME("text/x-python", "python");
   324 
   325   var words = function(str) { return str.split(" "); };
   326 
   327   CodeMirror.defineMIME("text/x-cython", {
   328     name: "python",
   329     extra_keywords: words("by cdef cimport cpdef ctypedef enum except "+
   330                           "extern gil include nogil property public "+
   331                           "readonly struct union DEF IF ELIF ELSE")
   332   });
   333 
   334 });



Download modules/editor/codemirror/mode/python/python.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.