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commonlisp.js (4569B)

      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("commonlisp", function (config) {
     15   var specialForm = /^(block|let*|return-from|catch|load-time-value|setq|eval-when|locally|symbol-macrolet|flet|macrolet|tagbody|function|multiple-value-call|the|go|multiple-value-prog1|throw|if|progn|unwind-protect|labels|progv|let|quote)$/;
     16   var assumeBody = /^with|^def|^do|^prog|case$|^cond$|bind$|when$|unless$/;
     17   var numLiteral = /^(?:[+\-]?(?:\d+|\d*\.\d+)(?:[efd][+\-]?\d+)?|[+\-]?\d+(?:\/[+\-]?\d+)?|#b[+\-]?[01]+|#o[+\-]?[0-7]+|#x[+\-]?[\da-f]+)/;
     18   var symbol = /[^\s'`,@()\[\]";]/;
     19   var type;
     20 
     21   function readSym(stream) {
     22     var ch;
     23     while (ch = stream.next()) {
     24       if (ch == "\\") stream.next();
     25       else if (!symbol.test(ch)) { stream.backUp(1); break; }
     26     }
     27     return stream.current();
     28   }
     29 
     30   function base(stream, state) {
     31     if (stream.eatSpace()) {type = "ws"; return null;}
     32     if (stream.match(numLiteral)) return "number";
     33     var ch = stream.next();
     34     if (ch == "\\") ch = stream.next();
     35 
     36     if (ch == '"') return (state.tokenize = inString)(stream, state);
     37     else if (ch == "(") { type = "open"; return "bracket"; }
     38     else if (ch == ")" || ch == "]") { type = "close"; return "bracket"; }
     39     else if (ch == ";") { stream.skipToEnd(); type = "ws"; return "comment"; }
     40     else if (/['`,@]/.test(ch)) return null;
     41     else if (ch == "|") {
     42       if (stream.skipTo("|")) { stream.next(); return "symbol"; }
     43       else { stream.skipToEnd(); return "error"; }
     44     } else if (ch == "#") {
     45       var ch = stream.next();
     46       if (ch == "(") { type = "open"; return "bracket"; }
     47       else if (/[+\-=\.']/.test(ch)) return null;
     48       else if (/\d/.test(ch) && stream.match(/^\d*#/)) return null;
     49       else if (ch == "|") return (state.tokenize = inComment)(stream, state);
     50       else if (ch == ":") { readSym(stream); return "meta"; }
     51       else if (ch == "\\") { stream.next(); readSym(stream); return "string-2" }
     52       else return "error";
     53     } else {
     54       var name = readSym(stream);
     55       if (name == ".") return null;
     56       type = "symbol";
     57       if (name == "nil" || name == "t" || name.charAt(0) == ":") return "atom";
     58       if (state.lastType == "open" && (specialForm.test(name) || assumeBody.test(name))) return "keyword";
     59       if (name.charAt(0) == "&") return "variable-2";
     60       return "variable";
     61     }
     62   }
     63 
     64   function inString(stream, state) {
     65     var escaped = false, next;
     66     while (next = stream.next()) {
     67       if (next == '"' && !escaped) { state.tokenize = base; break; }
     68       escaped = !escaped && next == "\\";
     69     }
     70     return "string";
     71   }
     72 
     73   function inComment(stream, state) {
     74     var next, last;
     75     while (next = stream.next()) {
     76       if (next == "#" && last == "|") { state.tokenize = base; break; }
     77       last = next;
     78     }
     79     type = "ws";
     80     return "comment";
     81   }
     82 
     83   return {
     84     startState: function () {
     85       return {ctx: {prev: null, start: 0, indentTo: 0}, lastType: null, tokenize: base};
     86     },
     87 
     88     token: function (stream, state) {
     89       if (stream.sol() && typeof state.ctx.indentTo != "number")
     90         state.ctx.indentTo = state.ctx.start + 1;
     91 
     92       type = null;
     93       var style = state.tokenize(stream, state);
     94       if (type != "ws") {
     95         if (state.ctx.indentTo == null) {
     96           if (type == "symbol" && assumeBody.test(stream.current()))
     97             state.ctx.indentTo = state.ctx.start + config.indentUnit;
     98           else
     99             state.ctx.indentTo = "next";
    100         } else if (state.ctx.indentTo == "next") {
    101           state.ctx.indentTo = stream.column();
    102         }
    103         state.lastType = type;
    104       }
    105       if (type == "open") state.ctx = {prev: state.ctx, start: stream.column(), indentTo: null};
    106       else if (type == "close") state.ctx = state.ctx.prev || state.ctx;
    107       return style;
    108     },
    109 
    110     indent: function (state, _textAfter) {
    111       var i = state.ctx.indentTo;
    112       return typeof i == "number" ? i : state.ctx.start + 1;
    113     },
    114 
    115     closeBrackets: {pairs: "()[]{}\"\""},
    116     lineComment: ";;",
    117     blockCommentStart: "#|",
    118     blockCommentEnd: "|#"
    119   };
    120 });
    121 
    122 CodeMirror.defineMIME("text/x-common-lisp", "commonlisp");
    123 
    124 });