File modules/editor/codemirror/mode/cypher/cypher.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 // By the Neo4j Team and contributors.
     5 // https://github.com/neo4j-contrib/CodeMirror
     6 
     7 (function(mod) {
     8   if (typeof exports == "object" && typeof module == "object") // CommonJS
     9     mod(require("../../lib/codemirror"));
    10   else if (typeof define == "function" && define.amd) // AMD
    11     define(["../../lib/codemirror"], mod);
    12   else // Plain browser env
    13     mod(CodeMirror);
    14 })(function(CodeMirror) {
    15   "use strict";
    16   var wordRegexp = function(words) {
    17     return new RegExp("^(?:" + words.join("|") + ")$", "i");
    18   };
    19 
    20   CodeMirror.defineMode("cypher", function(config) {
    21     var tokenBase = function(stream/*, state*/) {
    22       var ch = stream.next();
    23       if (ch ==='"') {
    24         stream.match(/.*?"/);
    25         return "string";
    26       }
    27       if (ch === "'") {
    28         stream.match(/.*?'/);
    29         return "string";
    30       }
    31       if (/[{}\(\),\.;\[\]]/.test(ch)) {
    32         curPunc = ch;
    33         return "node";
    34       } else if (ch === "/" && stream.eat("/")) {
    35         stream.skipToEnd();
    36         return "comment";
    37       } else if (operatorChars.test(ch)) {
    38         stream.eatWhile(operatorChars);
    39         return null;
    40       } else {
    41         stream.eatWhile(/[_\w\d]/);
    42         if (stream.eat(":")) {
    43           stream.eatWhile(/[\w\d_\-]/);
    44           return "atom";
    45         }
    46         var word = stream.current();
    47         if (funcs.test(word)) return "builtin";
    48         if (preds.test(word)) return "def";
    49         if (keywords.test(word)) return "keyword";
    50         return "variable";
    51       }
    52     };
    53     var pushContext = function(state, type, col) {
    54       return state.context = {
    55         prev: state.context,
    56         indent: state.indent,
    57         col: col,
    58         type: type
    59       };
    60     };
    61     var popContext = function(state) {
    62       state.indent = state.context.indent;
    63       return state.context = state.context.prev;
    64     };
    65     var indentUnit = config.indentUnit;
    66     var curPunc;
    67     var funcs = wordRegexp(["abs", "acos", "allShortestPaths", "asin", "atan", "atan2", "avg", "ceil", "coalesce", "collect", "cos", "cot", "count", "degrees", "e", "endnode", "exp", "extract", "filter", "floor", "haversin", "head", "id", "keys", "labels", "last", "left", "length", "log", "log10", "lower", "ltrim", "max", "min", "node", "nodes", "percentileCont", "percentileDisc", "pi", "radians", "rand", "range", "reduce", "rel", "relationship", "relationships", "replace", "reverse", "right", "round", "rtrim", "shortestPath", "sign", "sin", "size", "split", "sqrt", "startnode", "stdev", "stdevp", "str", "substring", "sum", "tail", "tan", "timestamp", "toFloat", "toInt", "toString", "trim", "type", "upper"]);
    68     var preds = wordRegexp(["all", "and", "any", "contains", "exists", "has", "in", "none", "not", "or", "single", "xor"]);
    69     var keywords = wordRegexp(["as", "asc", "ascending", "assert", "by", "case", "commit", "constraint", "create", "csv", "cypher", "delete", "desc", "descending", "detach", "distinct", "drop", "else", "end", "ends", "explain", "false", "fieldterminator", "foreach", "from", "headers", "in", "index", "is", "join", "limit", "load", "match", "merge", "null", "on", "optional", "order", "periodic", "profile", "remove", "return", "scan", "set", "skip", "start", "starts", "then", "true", "union", "unique", "unwind", "using", "when", "where", "with", "call", "yield"]);
    70     var operatorChars = /[*+\-<>=&|~%^]/;
    71 
    72     return {
    73       startState: function(/*base*/) {
    74         return {
    75           tokenize: tokenBase,
    76           context: null,
    77           indent: 0,
    78           col: 0
    79         };
    80       },
    81       token: function(stream, state) {
    82         if (stream.sol()) {
    83           if (state.context && (state.context.align == null)) {
    84             state.context.align = false;
    85           }
    86           state.indent = stream.indentation();
    87         }
    88         if (stream.eatSpace()) {
    89           return null;
    90         }
    91         var style = state.tokenize(stream, state);
    92         if (style !== "comment" && state.context && (state.context.align == null) && state.context.type !== "pattern") {
    93           state.context.align = true;
    94         }
    95         if (curPunc === "(") {
    96           pushContext(state, ")", stream.column());
    97         } else if (curPunc === "[") {
    98           pushContext(state, "]", stream.column());
    99         } else if (curPunc === "{") {
   100           pushContext(state, "}", stream.column());
   101         } else if (/[\]\}\)]/.test(curPunc)) {
   102           while (state.context && state.context.type === "pattern") {
   103             popContext(state);
   104           }
   105           if (state.context && curPunc === state.context.type) {
   106             popContext(state);
   107           }
   108         } else if (curPunc === "." && state.context && state.context.type === "pattern") {
   109           popContext(state);
   110         } else if (/atom|string|variable/.test(style) && state.context) {
   111           if (/[\}\]]/.test(state.context.type)) {
   112             pushContext(state, "pattern", stream.column());
   113           } else if (state.context.type === "pattern" && !state.context.align) {
   114             state.context.align = true;
   115             state.context.col = stream.column();
   116           }
   117         }
   118         return style;
   119       },
   120       indent: function(state, textAfter) {
   121         var firstChar = textAfter && textAfter.charAt(0);
   122         var context = state.context;
   123         if (/[\]\}]/.test(firstChar)) {
   124           while (context && context.type === "pattern") {
   125             context = context.prev;
   126           }
   127         }
   128         var closing = context && firstChar === context.type;
   129         if (!context) return 0;
   130         if (context.type === "keywords") return CodeMirror.commands.newlineAndIndent;
   131         if (context.align) return context.col + (closing ? 0 : 1);
   132         return context.indent + (closing ? 0 : indentUnit);
   133       }
   134     };
   135   });
   136 
   137   CodeMirror.modeExtensions["cypher"] = {
   138     autoFormatLineBreaks: function(text) {
   139       var i, lines, reProcessedPortion;
   140       var lines = text.split("\n");
   141       var reProcessedPortion = /\s+\b(return|where|order by|match|with|skip|limit|create|delete|set)\b\s/g;
   142       for (var i = 0; i < lines.length; i++)
   143         lines[i] = lines[i].replace(reProcessedPortion, " \n$1 ").trim();
   144       return lines.join("\n");
   145     }
   146   };
   147 
   148   CodeMirror.defineMIME("application/x-cypher-query", "cypher");
   149 
   150 });



Download modules/editor/codemirror/mode/cypher/cypher.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.