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pascal.js
109 lines
| 3.0 KiB
| application/javascript
|
JavascriptLexer
r1 | // CodeMirror, copyright (c) by Marijn Haverbeke and others | |||
// Distributed under an MIT license: http://codemirror.net/LICENSE | ||||
(function(mod) { | ||||
if (typeof exports == "object" && typeof module == "object") // CommonJS | ||||
mod(require("../../lib/codemirror")); | ||||
else if (typeof define == "function" && define.amd) // AMD | ||||
define(["../../lib/codemirror"], mod); | ||||
else // Plain browser env | ||||
mod(CodeMirror); | ||||
})(function(CodeMirror) { | ||||
"use strict"; | ||||
CodeMirror.defineMode("pascal", function() { | ||||
function words(str) { | ||||
var obj = {}, words = str.split(" "); | ||||
for (var i = 0; i < words.length; ++i) obj[words[i]] = true; | ||||
return obj; | ||||
} | ||||
var keywords = words("and array begin case const div do downto else end file for forward integer " + | ||||
"boolean char function goto if in label mod nil not of or packed procedure " + | ||||
"program record repeat set string then to type until var while with"); | ||||
var atoms = {"null": true}; | ||||
var isOperatorChar = /[+\-*&%=<>!?|\/]/; | ||||
function tokenBase(stream, state) { | ||||
var ch = stream.next(); | ||||
if (ch == "#" && state.startOfLine) { | ||||
stream.skipToEnd(); | ||||
return "meta"; | ||||
} | ||||
if (ch == '"' || ch == "'") { | ||||
state.tokenize = tokenString(ch); | ||||
return state.tokenize(stream, state); | ||||
} | ||||
if (ch == "(" && stream.eat("*")) { | ||||
state.tokenize = tokenComment; | ||||
return tokenComment(stream, state); | ||||
} | ||||
if (/[\[\]{}\(\),;\:\.]/.test(ch)) { | ||||
return null; | ||||
} | ||||
if (/\d/.test(ch)) { | ||||
stream.eatWhile(/[\w\.]/); | ||||
return "number"; | ||||
} | ||||
if (ch == "/") { | ||||
if (stream.eat("/")) { | ||||
stream.skipToEnd(); | ||||
return "comment"; | ||||
} | ||||
} | ||||
if (isOperatorChar.test(ch)) { | ||||
stream.eatWhile(isOperatorChar); | ||||
return "operator"; | ||||
} | ||||
stream.eatWhile(/[\w\$_]/); | ||||
var cur = stream.current(); | ||||
if (keywords.propertyIsEnumerable(cur)) return "keyword"; | ||||
if (atoms.propertyIsEnumerable(cur)) return "atom"; | ||||
return "variable"; | ||||
} | ||||
function tokenString(quote) { | ||||
return function(stream, state) { | ||||
var escaped = false, next, end = false; | ||||
while ((next = stream.next()) != null) { | ||||
if (next == quote && !escaped) {end = true; break;} | ||||
escaped = !escaped && next == "\\"; | ||||
} | ||||
if (end || !escaped) state.tokenize = null; | ||||
return "string"; | ||||
}; | ||||
} | ||||
function tokenComment(stream, state) { | ||||
var maybeEnd = false, ch; | ||||
while (ch = stream.next()) { | ||||
if (ch == ")" && maybeEnd) { | ||||
state.tokenize = null; | ||||
break; | ||||
} | ||||
maybeEnd = (ch == "*"); | ||||
} | ||||
return "comment"; | ||||
} | ||||
// Interface | ||||
return { | ||||
startState: function() { | ||||
return {tokenize: null}; | ||||
}, | ||||
token: function(stream, state) { | ||||
if (stream.eatSpace()) return null; | ||||
var style = (state.tokenize || tokenBase)(stream, state); | ||||
if (style == "comment" || style == "meta") return style; | ||||
return style; | ||||
}, | ||||
electricChars: "{}" | ||||
}; | ||||
}); | ||||
CodeMirror.defineMIME("text/x-pascal", "pascal"); | ||||
}); | ||||