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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  //tcl mode by Ford_Lawnmower :: Based on Velocity mode by Steve O'Hara
   5  
   6  (function(mod) {
   7    if (typeof exports == "object" && typeof module == "object") // CommonJS
   8      mod(require("../../lib/codemirror"));
   9    else if (typeof define == "function" && define.amd) // AMD
  10      define(["../../lib/codemirror"], mod);
  11    else // Plain browser env
  12      mod(CodeMirror);
  13  })(function(CodeMirror) {
  14  "use strict";
  15  
  16  CodeMirror.defineMode("tcl", function() {
  17    function parseWords(str) {
  18      var obj = {}, words = str.split(" ");
  19      for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
  20      return obj;
  21    }
  22    var keywords = parseWords("Tcl safe after append array auto_execok auto_import auto_load " +
  23          "auto_mkindex auto_mkindex_old auto_qualify auto_reset bgerror " +
  24          "binary break catch cd close concat continue dde eof encoding error " +
  25          "eval exec exit expr fblocked fconfigure fcopy file fileevent filename " +
  26          "filename flush for foreach format gets glob global history http if " +
  27          "incr info interp join lappend lindex linsert list llength load lrange " +
  28          "lreplace lsearch lset lsort memory msgcat namespace open package parray " +
  29          "pid pkg::create pkg_mkIndex proc puts pwd re_syntax read regex regexp " +
  30          "registry regsub rename resource return scan seek set socket source split " +
  31          "string subst switch tcl_endOfWord tcl_findLibrary tcl_startOfNextWord " +
  32          "tcl_wordBreakAfter tcl_startOfPreviousWord tcl_wordBreakBefore tcltest " +
  33          "tclvars tell time trace unknown unset update uplevel upvar variable " +
  34      "vwait");
  35      var functions = parseWords("if elseif else and not or eq ne in ni for foreach while switch");
  36      var isOperatorChar = /[+\-*&%=<>!?^\/\|]/;
  37      function chain(stream, state, f) {
  38        state.tokenize = f;
  39        return f(stream, state);
  40      }
  41      function tokenBase(stream, state) {
  42        var beforeParams = state.beforeParams;
  43        state.beforeParams = false;
  44        var ch = stream.next();
  45        if ((ch == '"' || ch == "'") && state.inParams) {
  46          return chain(stream, state, tokenString(ch));
  47        } else if (/[\[\]{}\(\),;\.]/.test(ch)) {
  48          if (ch == "(" && beforeParams) state.inParams = true;
  49          else if (ch == ")") state.inParams = false;
  50            return null;
  51        } else if (/\d/.test(ch)) {
  52          stream.eatWhile(/[\w\.]/);
  53          return "number";
  54        } else if (ch == "#") {
  55          if (stream.eat("*"))
  56            return chain(stream, state, tokenComment);
  57          if (ch == "#" && stream.match(/ *\[ *\[/))
  58            return chain(stream, state, tokenUnparsed);
  59          stream.skipToEnd();
  60          return "comment";
  61        } else if (ch == '"') {
  62          stream.skipTo(/"/);
  63          return "comment";
  64        } else if (ch == "$") {
  65          stream.eatWhile(/[$_a-z0-9A-Z\.{:]/);
  66          stream.eatWhile(/}/);
  67          state.beforeParams = true;
  68          return "builtin";
  69        } else if (isOperatorChar.test(ch)) {
  70          stream.eatWhile(isOperatorChar);
  71          return "comment";
  72        } else {
  73          stream.eatWhile(/[\w\$_{}\xa1-\uffff]/);
  74          var word = stream.current().toLowerCase();
  75          if (keywords && keywords.propertyIsEnumerable(word))
  76            return "keyword";
  77          if (functions && functions.propertyIsEnumerable(word)) {
  78            state.beforeParams = true;
  79            return "keyword";
  80          }
  81          return null;
  82        }
  83      }
  84      function tokenString(quote) {
  85        return function(stream, state) {
  86        var escaped = false, next, end = false;
  87        while ((next = stream.next()) != null) {
  88          if (next == quote && !escaped) {
  89            end = true;
  90            break;
  91          }
  92          escaped = !escaped && next == "\\";
  93        }
  94        if (end) state.tokenize = tokenBase;
  95          return "string";
  96        };
  97      }
  98      function tokenComment(stream, state) {
  99        var maybeEnd = false, ch;
 100        while (ch = stream.next()) {
 101          if (ch == "#" && maybeEnd) {
 102            state.tokenize = tokenBase;
 103            break;
 104          }
 105          maybeEnd = (ch == "*");
 106        }
 107        return "comment";
 108      }
 109      function tokenUnparsed(stream, state) {
 110        var maybeEnd = 0, ch;
 111        while (ch = stream.next()) {
 112          if (ch == "#" && maybeEnd == 2) {
 113            state.tokenize = tokenBase;
 114            break;
 115          }
 116          if (ch == "]")
 117            maybeEnd++;
 118          else if (ch != " ")
 119            maybeEnd = 0;
 120        }
 121        return "meta";
 122      }
 123      return {
 124        startState: function() {
 125          return {
 126            tokenize: tokenBase,
 127            beforeParams: false,
 128            inParams: false
 129          };
 130        },
 131        token: function(stream, state) {
 132          if (stream.eatSpace()) return null;
 133          return state.tokenize(stream, state);
 134        },
 135        lineComment: "#"
 136      };
 137  });
 138  CodeMirror.defineMIME("text/x-tcl", "tcl");
 139  
 140  });