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turtle.js
162 lines
| 4.7 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("turtle", function(config) { | ||||
var indentUnit = config.indentUnit; | ||||
var curPunc; | ||||
function wordRegexp(words) { | ||||
return new RegExp("^(?:" + words.join("|") + ")$", "i"); | ||||
} | ||||
var ops = wordRegexp([]); | ||||
var keywords = wordRegexp(["@prefix", "@base", "a"]); | ||||
var operatorChars = /[*+\-<>=&|]/; | ||||
function tokenBase(stream, state) { | ||||
var ch = stream.next(); | ||||
curPunc = null; | ||||
if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) { | ||||
stream.match(/^[^\s\u00a0>]*>?/); | ||||
return "atom"; | ||||
} | ||||
else if (ch == "\"" || ch == "'") { | ||||
state.tokenize = tokenLiteral(ch); | ||||
return state.tokenize(stream, state); | ||||
} | ||||
else if (/[{}\(\),\.;\[\]]/.test(ch)) { | ||||
curPunc = ch; | ||||
return null; | ||||
} | ||||
else if (ch == "#") { | ||||
stream.skipToEnd(); | ||||
return "comment"; | ||||
} | ||||
else if (operatorChars.test(ch)) { | ||||
stream.eatWhile(operatorChars); | ||||
return null; | ||||
} | ||||
else if (ch == ":") { | ||||
return "operator"; | ||||
} else { | ||||
stream.eatWhile(/[_\w\d]/); | ||||
if(stream.peek() == ":") { | ||||
return "variable-3"; | ||||
} else { | ||||
var word = stream.current(); | ||||
if(keywords.test(word)) { | ||||
return "meta"; | ||||
} | ||||
if(ch >= "A" && ch <= "Z") { | ||||
return "comment"; | ||||
} else { | ||||
return "keyword"; | ||||
} | ||||
} | ||||
var word = stream.current(); | ||||
if (ops.test(word)) | ||||
return null; | ||||
else if (keywords.test(word)) | ||||
return "meta"; | ||||
else | ||||
return "variable"; | ||||
} | ||||
} | ||||
function tokenLiteral(quote) { | ||||
return function(stream, state) { | ||||
var escaped = false, ch; | ||||
while ((ch = stream.next()) != null) { | ||||
if (ch == quote && !escaped) { | ||||
state.tokenize = tokenBase; | ||||
break; | ||||
} | ||||
escaped = !escaped && ch == "\\"; | ||||
} | ||||
return "string"; | ||||
}; | ||||
} | ||||
function pushContext(state, type, col) { | ||||
state.context = {prev: state.context, indent: state.indent, col: col, type: type}; | ||||
} | ||||
function popContext(state) { | ||||
state.indent = state.context.indent; | ||||
state.context = state.context.prev; | ||||
} | ||||
return { | ||||
startState: function() { | ||||
return {tokenize: tokenBase, | ||||
context: null, | ||||
indent: 0, | ||||
col: 0}; | ||||
}, | ||||
token: function(stream, state) { | ||||
if (stream.sol()) { | ||||
if (state.context && state.context.align == null) state.context.align = false; | ||||
state.indent = stream.indentation(); | ||||
} | ||||
if (stream.eatSpace()) return null; | ||||
var style = state.tokenize(stream, state); | ||||
if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") { | ||||
state.context.align = true; | ||||
} | ||||
if (curPunc == "(") pushContext(state, ")", stream.column()); | ||||
else if (curPunc == "[") pushContext(state, "]", stream.column()); | ||||
else if (curPunc == "{") pushContext(state, "}", stream.column()); | ||||
else if (/[\]\}\)]/.test(curPunc)) { | ||||
while (state.context && state.context.type == "pattern") popContext(state); | ||||
if (state.context && curPunc == state.context.type) popContext(state); | ||||
} | ||||
else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state); | ||||
else if (/atom|string|variable/.test(style) && state.context) { | ||||
if (/[\}\]]/.test(state.context.type)) | ||||
pushContext(state, "pattern", stream.column()); | ||||
else if (state.context.type == "pattern" && !state.context.align) { | ||||
state.context.align = true; | ||||
state.context.col = stream.column(); | ||||
} | ||||
} | ||||
return style; | ||||
}, | ||||
indent: function(state, textAfter) { | ||||
var firstChar = textAfter && textAfter.charAt(0); | ||||
var context = state.context; | ||||
if (/[\]\}]/.test(firstChar)) | ||||
while (context && context.type == "pattern") context = context.prev; | ||||
var closing = context && firstChar == context.type; | ||||
if (!context) | ||||
return 0; | ||||
else if (context.type == "pattern") | ||||
return context.col; | ||||
else if (context.align) | ||||
return context.col + (closing ? 0 : 1); | ||||
else | ||||
return context.indent + (closing ? 0 : indentUnit); | ||||
}, | ||||
lineComment: "#" | ||||
}; | ||||
}); | ||||
CodeMirror.defineMIME("text/turtle", "turtle"); | ||||
}); | ||||