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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/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("solr", function() {
  15    "use strict";
  16  
  17    var isStringChar = /[^\s\|\!\+\-\*\?\~\^\&\:\(\)\[\]\{\}\"\\]/;
  18    var isOperatorChar = /[\|\!\+\-\*\?\~\^\&]/;
  19    var isOperatorString = /^(OR|AND|NOT|TO)$/i;
  20  
  21    function isNumber(word) {
  22      return parseFloat(word).toString() === word;
  23    }
  24  
  25    function tokenString(quote) {
  26      return function(stream, state) {
  27        var escaped = false, next;
  28        while ((next = stream.next()) != null) {
  29          if (next == quote && !escaped) break;
  30          escaped = !escaped && next == "\\";
  31        }
  32  
  33        if (!escaped) state.tokenize = tokenBase;
  34        return "string";
  35      };
  36    }
  37  
  38    function tokenOperator(operator) {
  39      return function(stream, state) {
  40        var style = "operator";
  41        if (operator == "+")
  42          style += " positive";
  43        else if (operator == "-")
  44          style += " negative";
  45        else if (operator == "|")
  46          stream.eat(/\|/);
  47        else if (operator == "&")
  48          stream.eat(/\&/);
  49        else if (operator == "^")
  50          style += " boost";
  51  
  52        state.tokenize = tokenBase;
  53        return style;
  54      };
  55    }
  56  
  57    function tokenWord(ch) {
  58      return function(stream, state) {
  59        var word = ch;
  60        while ((ch = stream.peek()) && ch.match(isStringChar) != null) {
  61          word += stream.next();
  62        }
  63  
  64        state.tokenize = tokenBase;
  65        if (isOperatorString.test(word))
  66          return "operator";
  67        else if (isNumber(word))
  68          return "number";
  69        else if (stream.peek() == ":")
  70          return "field";
  71        else
  72          return "string";
  73      };
  74    }
  75  
  76    function tokenBase(stream, state) {
  77      var ch = stream.next();
  78      if (ch == '"')
  79        state.tokenize = tokenString(ch);
  80      else if (isOperatorChar.test(ch))
  81        state.tokenize = tokenOperator(ch);
  82      else if (isStringChar.test(ch))
  83        state.tokenize = tokenWord(ch);
  84  
  85      return (state.tokenize != tokenBase) ? state.tokenize(stream, state) : null;
  86    }
  87  
  88    return {
  89      startState: function() {
  90        return {
  91          tokenize: tokenBase
  92        };
  93      },
  94  
  95      token: function(stream, state) {
  96        if (stream.eatSpace()) return null;
  97        return state.tokenize(stream, state);
  98      }
  99    };
 100  });
 101  
 102  CodeMirror.defineMIME("text/x-solr", "solr");
 103  
 104  });