alpaca/dist/lib/ace-builds/src/mode-latex.js

Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide

define("ace/mode/latex_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/text_highlight_rules"], function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;

var LatexHighlightRules = function() {  

    this.$rules = {
        "start" : [{
            token : "comment",
            regex : "%.*$"
        }, {
            token : ["keyword", "lparen", "variable.parameter", "rparen", "lparen", "storage.type", "rparen"],
            regex : "(\\\\(?:documentclass|usepackage|input))(?:(\\[)([^\\]]*)(\\]))?({)([^}]*)(})"
        }, {
            token : ["keyword","lparen", "variable.parameter", "rparen"],
            regex : "(\\\\label)(?:({)([^}]*)(}))?"
        }, {
            token : ["storage.type", "lparen", "variable.parameter", "rparen"],
            regex : "(\\\\(?:begin|end))({)(\\w*)(})"
        }, {
            token : "storage.type",
            regex : "\\\\[a-zA-Z]+"
        }, {
            token : "lparen",
            regex : "[[({]"
        }, {
            token : "rparen",
            regex : "[\\])}]"
        }, {
            token : "constant.character.escape",
            regex : "\\\\[^a-zA-Z]?"
        }, {
            token : "string",
            regex : "\\${1,2}",
            next  : "equation"
        }],
        "equation" : [{
            token : "comment",
            regex : "%.*$"
        }, {
            token : "string",
            regex : "\\${1,2}",
            next  : "start"
        }, {
            token : "constant.character.escape",
            regex : "\\\\(?:[^a-zA-Z]|[a-zA-Z]+)"
        }, {
            token : "error", 
            regex : "^\\s*$", 
            next : "start" 
        }, {
            defaultToken : "string"
        }]

    };
};
oop.inherits(LatexHighlightRules, TextHighlightRules);

exports.LatexHighlightRules = LatexHighlightRules;

});

define("ace/mode/folding/latex",["require","exports","module","ace/lib/oop","ace/mode/folding/fold_mode","ace/range","ace/token_iterator"], function(require, exports, module) {
"use strict";

var oop = require("../../lib/oop");
var BaseFoldMode = require("./fold_mode").FoldMode;
var Range = require("../../range").Range;
var TokenIterator = require("../../token_iterator").TokenIterator;

var FoldMode = exports.FoldMode = function() {};

oop.inherits(FoldMode, BaseFoldMode);

(function() {

    this.foldingStartMarker = /^\s*\\(begin)|(section|subsection|paragraph)\b|{\s*$/;
    this.foldingStopMarker = /^\s*\\(end)\b|^\s*}/;

    this.getFoldWidgetRange = function(session, foldStyle, row) {
        var line = session.doc.getLine(row);
        var match = this.foldingStartMarker.exec(line);
        if (match) {
            if (match[1])
                return this.latexBlock(session, row, match[0].length - 1);
            if (match[2])
                return this.latexSection(session, row, match[0].length - 1);

            return this.openingBracketBlock(session, "{", row, match.index);
        }

        var match = this.foldingStopMarker.exec(line);
        if (match) {
            if (match[1])
                return this.latexBlock(session, row, match[0].length - 1);

            return this.closingBracketBlock(session, "}", row, match.index + match[0].length);
        }
    };

    this.latexBlock = function(session, row, column) {
        var keywords = {
            "\\begin": 1,
            "\\end": -1
        };

        var stream = new TokenIterator(session, row, column);
        var token = stream.getCurrentToken();
        if (!token || !(token.type == "storage.type" || token.type == "constant.character.escape"))
            return;

        var val = token.value;
        var dir = keywords[val];

        var getType = function() {
            var token = stream.stepForward();
            var type = token.type == "lparen" ?stream.stepForward().value : "";
            if (dir === -1) {
                stream.stepBackward();
                if (type)
                    stream.stepBackward();
            }
            return type;
        };
        var stack = [getType()];
        var startColumn = dir === -1 ? stream.getCurrentTokenColumn() : session.getLine(row).length;
        var startRow = row;

        stream.step = dir === -1 ? stream.stepBackward : stream.stepForward;
        while(token = stream.step()) {
            if (!token || !(token.type == "storage.type" || token.type == "constant.character.escape"))
                continue;
            var level = keywords[token.value];
            if (!level)
                continue;
            var type = getType();
            if (level === dir)
                stack.unshift(type);
            else if (stack.shift() !== type || !stack.length)
                break;
        }

        if (stack.length)
            return;

        var row = stream.getCurrentTokenRow();
        if (dir === -1)
            return new Range(row, session.getLine(row).length, startRow, startColumn);
        stream.stepBackward();
        return new Range(startRow, startColumn, row, stream.getCurrentTokenColumn());
    };

    this.latexSection = function(session, row, column) {
        var keywords = ["\\subsection", "\\section", "\\begin", "\\end", "\\paragraph"];

        var stream = new TokenIterator(session, row, column);
        var token = stream.getCurrentToken();
        if (!token || token.type != "storage.type")
            return;

        var startLevel = keywords.indexOf(token.value);
        var stackDepth = 0
        var endRow = row;

        while(token = stream.stepForward()) {
            if (token.type !== "storage.type")
                continue;
            var level = keywords.indexOf(token.value);

            if (level >= 2) {
                if (!stackDepth)
                    endRow = stream.getCurrentTokenRow() - 1;
                stackDepth += level == 2 ? 1 : - 1;
                if (stackDepth < 0)
                    break
            } else if (level >= startLevel)
                break;
        }

        if (!stackDepth)
            endRow = stream.getCurrentTokenRow() - 1;

        while (endRow > row && !/\S/.test(session.getLine(endRow)))
            endRow--;

        return new Range(
            row, session.getLine(row).length,
            endRow, session.getLine(endRow).length
        );
    };

}).call(FoldMode.prototype);

});

define("ace/mode/latex",["require","exports","module","ace/lib/oop","ace/mode/text","ace/mode/latex_highlight_rules","ace/mode/folding/latex","ace/range"], function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var LatexHighlightRules = require("./latex_highlight_rules").LatexHighlightRules;
var LatexFoldMode = require("./folding/latex").FoldMode;
var Range = require("../range").Range;

var Mode = function() {
    this.HighlightRules = LatexHighlightRules;
    this.foldingRules = new LatexFoldMode();
};
oop.inherits(Mode, TextMode);

(function() {
    this.type = "text";
    
    this.lineCommentStart = "%";

    this.$id = "ace/mode/latex";
}).call(Mode.prototype);

exports.Mode = Mode;

});