simplify lua highlight rules
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nightwing
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08e621b443
commit
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1 changed files with 68 additions and 247 deletions
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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@ -14,7 +14,7 @@
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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@ -86,8 +86,6 @@ var LuaHighlightRules = function() {
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"variable.language": "this"
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}, "identifier");
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var strPre = "";
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var decimalInteger = "(?:(?:[1-9]\\d*)|(?:0))";
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var hexInteger = "(?:0[xX][\\dA-Fa-f]+)";
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var integer = "(?:" + decimalInteger + "|" + hexInteger + ")";
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@ -97,138 +95,73 @@ var LuaHighlightRules = function() {
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var pointFloat = "(?:(?:" + intPart + "?" + fraction + ")|(?:" + intPart + "\\.))";
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var floatNumber = "(?:" + pointFloat + ")";
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var comment_stack = [];
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this.$rules = {
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"start" :
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// bracketed comments
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[{
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token : "comment", // --[[ comment
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regex : strPre + '\\-\\-\\[\\[.*\\]\\]'
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}, {
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token : "comment", // --[=[ comment
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regex : strPre + '\\-\\-\\[\\=\\[.*\\]\\=\\]'
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}, {
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token : "comment", // --[==[ comment
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regex : strPre + '\\-\\-\\[\\={2}\\[.*\\]\\={2}\\]'
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}, {
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token : "comment", // --[===[ comment
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regex : strPre + '\\-\\-\\[\\={3}\\[.*\\]\\={3}\\]'
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}, {
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token : "comment", // --[====[ comment
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regex : strPre + '\\-\\-\\[\\={4}\\[.*\\]\\={4}\\]'
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}, {
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token : "comment", // --[====+[ comment
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regex : strPre + '\\-\\-\\[\\={5}\\=*\\[.*\\]\\={5}\\=*\\]'
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},
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// multiline bracketed comments
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{
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token : "comment", // --[[ comment
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regex : strPre + '\\-\\-\\[\\[.*$',
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next : "qcomment"
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}, {
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token : "comment", // --[=[ comment
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regex : strPre + '\\-\\-\\[\\=\\[.*$',
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next : "qcomment1"
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}, {
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token : "comment", // --[==[ comment
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regex : strPre + '\\-\\-\\[\\={2}\\[.*$',
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next : "qcomment2"
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}, {
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token : "comment", // --[===[ comment
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regex : strPre + '\\-\\-\\[\\={3}\\[.*$',
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next : "qcomment3"
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}, {
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token : "comment", // --[====[ comment
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regex : strPre + '\\-\\-\\[\\={4}\\[.*$',
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next : "qcomment4"
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}, {
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token : function(value){ // --[====+[ comment
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// WARNING: EXTREMELY SLOW, but this is the only way to circumvent the
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// limits imposed by the current automaton.
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// I've never personally seen any practical code where 5 or more '='s are
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// used for string or commenting, so this will rarely be invoked.
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var pattern = /\-\-\[(\=+)\[/, match;
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// you can never be too paranoid ;)
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if ((match = pattern.exec(value)) != null && (match = match[1]) != undefined)
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comment_stack.push(match.length);
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"start" : [{
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stateName: "bracketedComment",
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token : function(value, currentState, stack){
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stack.unshift("bracketedComment", value.length);
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return "comment";
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},
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regex : strPre + '\\-\\-\\[\\={5}\\=*\\[.*$',
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next : "qcomment5"
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regex : /\-\-\[=*\[/,
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next : [
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{
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token : function(value, currentState, stack) {
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if (value.length == stack[1]) {
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stack.shift();
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stack.shift();
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this.next = "start";
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} else {
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this.next = "";
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}
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return "comment";
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},
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regex : /(?:[^\\]|\\.)*?\]=*\]/,
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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}
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]
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},
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// single line comments
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{
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token : "comment",
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regex : "\\-\\-.*$"
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},
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// bracketed strings
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{
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token : "string", // [[ string
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regex : strPre + '\\[\\[.*\\]\\]'
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}, {
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token : "string", // [=[ string
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regex : strPre + '\\[\\=\\[.*\\]\\=\\]'
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}, {
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token : "string", // [==[ string
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regex : strPre + '\\[\\={2}\\[.*\\]\\={2}\\]'
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}, {
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token : "string", // [===[ string
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regex : strPre + '\\[\\={3}\\[.*\\]\\={3}\\]'
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}, {
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token : "string", // [====[ string
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regex : strPre + '\\[\\={4}\\[.*\\]\\={4}\\]'
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}, {
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token : "string", // [====+[ string
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regex : strPre + '\\[\\={5}\\=*\\[.*\\]\\={5}\\=*\\]'
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},
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// multiline bracketed strings
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{
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token : "string", // [[ string
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regex : strPre + '\\[\\[.*$',
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next : "qstring"
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}, {
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token : "string", // [=[ string
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regex : strPre + '\\[\\=\\[.*$',
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next : "qstring1"
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}, {
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token : "string", // [==[ string
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regex : strPre + '\\[\\={2}\\[.*$',
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next : "qstring2"
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}, {
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token : "string", // [===[ string
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regex : strPre + '\\[\\={3}\\[.*$',
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next : "qstring3"
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}, {
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token : "string", // [====[ string
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regex : strPre + '\\[\\={4}\\[.*$',
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next : "qstring4"
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}, {
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token : function(value){ // --[====+[ string
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// WARNING: EXTREMELY SLOW, see above.
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var pattern = /\[(\=+)\[/, match;
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if ((match = pattern.exec(value)) != null && (match = match[1]) != undefined)
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comment_stack.push(match.length);
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return "string";
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stateName: "bracketedString",
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token : function(value, currentState, stack){
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stack.unshift("bracketedString", value.length);
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return "comment";
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},
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regex : strPre + '\\[\\={5}\\=*\\[.*$',
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next : "qstring5"
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regex : /\[=*\[/,
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next : [
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{
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token : function(value, currentState, stack) {
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if (value.length == stack[1]) {
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stack.shift();
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stack.shift();
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this.next = "start";
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} else {
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this.next = "";
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}
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return "comment";
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},
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regex : /(?:[^\\]|\\.)*?\]=*\]/,
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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}
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]
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},
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{
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token : "string", // " string
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regex : strPre + '"(?:[^\\\\]|\\\\.)*?"'
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regex : '"(?:[^\\\\]|\\\\.)*?"'
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}, {
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token : "string", // ' string
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regex : strPre + "'(?:[^\\\\]|\\\\.)*?'"
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regex : "'(?:[^\\\\]|\\\\.)*?'"
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}, {
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token : "constant.numeric", // float
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regex : floatNumber
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@ -249,135 +182,23 @@ var LuaHighlightRules = function() {
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regex : "[\\]\\)\\}]"
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}, {
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token : "text",
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regex : "\\s+"
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} ],
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"qcomment": [ {
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token : "comment",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qcomment1": [ {
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token : "comment",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\=\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qcomment2": [ {
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token : "comment",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={2}\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qcomment3": [ {
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token : "comment",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={3}\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qcomment4": [ {
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token : "comment",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={4}\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qcomment5": [ {
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token : function(value){
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// very hackish, mutates the qcomment5 field on the fly.
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var pattern = /\](\=+)\]/, rule = this.rules.qcomment5[0], match;
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rule.next = "start";
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if ((match = pattern.exec(value)) != null && (match = match[1]) != undefined){
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var found = match.length, expected;
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if ((expected = comment_stack.pop()) != found){
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comment_stack.push(expected);
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rule.next = "qcomment5";
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}
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}
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return "comment";
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},
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={5}\\=*\\]",
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next : "start"
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}, {
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token : "comment",
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regex : '.+'
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} ],
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"qstring": [ {
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token : "string",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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} ],
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"qstring1": [ {
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token : "string",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\=\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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} ],
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"qstring2": [ {
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token : "string",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={2}\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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} ],
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"qstring3": [ {
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token : "string",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={3}\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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} ],
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"qstring4": [ {
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token : "string",
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={4}\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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} ],
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"qstring5": [ {
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token : function(value){
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// very hackish, mutates the qstring5 field on the fly.
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var pattern = /\](\=+)\]/, rule = this.rules.qstring5[0], match;
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rule.next = "start";
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if ((match = pattern.exec(value)) != null && (match = match[1]) != undefined){
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var found = match.length, expected;
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if ((expected = comment_stack.pop()) != found){
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comment_stack.push(expected);
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rule.next = "qstring5";
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}
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}
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return "string";
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},
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regex : "(?:[^\\\\]|\\\\.)*?\\]\\={5}\\=*\\]",
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next : "start"
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}, {
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token : "string",
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regex : '.+'
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regex : "\\s+|\\w+"
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} ]
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};
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var id = 0;
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for (var key in this.$rules) {
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var rule = this.$rules[key];
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for (var i = 0; i < rule.length; i++) {
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var state = rule[i];
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if (state.next && Array.isArray(state.next)) {
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console.log(state.next)
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var stateName = state.stateName || ("state" + id++);
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this.$rules[stateName] = state.next;
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state.next = stateName;
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}
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}
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}
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}
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oop.inherits(LuaHighlightRules, TextHighlightRules);
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