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        var session = this.editor.session;
        ts.forEach(function(range) {
            session.removeMarker(range.markerId);
            range.markerId = null;
        });
    };
    this.removeRange = function(range) {
        var i = range.tabstop.indexOf(range);
        if (i != -1) range.tabstop.splice(i, 1);
        i = this.ranges.indexOf(range);
        if (i != -1) this.ranges.splice(i, 1);
        i = range.tabstop.rangeList.ranges.indexOf(range);
        if (i != -1) range.tabstop.splice(i, 1);
        this.editor.session.removeMarker(range.markerId);
        if (!range.tabstop.length) {
            i = this.tabstops.indexOf(range.tabstop);
            if (i != -1)
                this.tabstops.splice(i, 1);
            if (!this.tabstops.length)
                this.detach();
        }
    };

    this.keyboardHandler = new HashHandler();
    this.keyboardHandler.bindKeys({
        "Tab": function(editor) {
            if (exports.snippetManager && exports.snippetManager.expandWithTab(editor))
                return;
            editor.tabstopManager.tabNext(1);
            editor.renderer.scrollCursorIntoView();
        },
        "Shift-Tab": function(editor) {
            editor.tabstopManager.tabNext(-1);
            editor.renderer.scrollCursorIntoView();
        },
        "Esc": function(editor) {
            editor.tabstopManager.detach();
        }
    });
}).call(TabstopManager.prototype);



var movePoint = function(point, diff) {
    if (point.row == 0)
        point.column += diff.column;
    point.row += diff.row;
};

var moveRelative = function(point, start) {
    if (point.row == start.row)
        point.column -= start.column;
    point.row -= start.row;
};


require("./lib/dom").importCssString("\
.ace_snippet-marker {\
    -moz-box-sizing: border-box;\
    box-sizing: border-box;\
    background: rgba(194, 193, 208, 0.09);\
    border: 1px dotted rgba(211, 208, 235, 0.62);\
    position: absolute;\
}");

exports.snippetManager = new SnippetManager();


var Editor = require("./editor").Editor;
(function() {
    this.insertSnippet = function(content, options) {
        return exports.snippetManager.insertSnippet(this, content, options);
    };
    this.expandSnippet = function(options) {
        return exports.snippetManager.expandWithTab(this, options);
    };
}).call(Editor.prototype);

});

define("ace/ext/emmet",["require","exports","module","ace/keyboard/hash_handler","ace/editor","ace/snippets","ace/range","ace/config","resources","resources","tabStops","resources","utils","actions"], function(require, exports, module) {
"use strict";
var HashHandler = require("../keyboard/hash_handler").HashHandler;
var Editor = require("../editor").Editor;
var snippetManager = require("../snippets").snippetManager;
var Range = require("../range").Range;
var config = require("../config");
var emmet, emmetPath;
function AceEmmetEditor() {}

AceEmmetEditor.prototype = {
    setupContext: function(editor) {
        this.ace = editor;
        this.indentation = editor.session.getTabString();
        if (!emmet)
            emmet = window.emmet;
        var resources = emmet.resources || emmet.require("resources");
        resources.setVariable("indentation", this.indentation);
        this.$syntax = null;
        this.$syntax = this.getSyntax();
    },
    getSelectionRange: function() {
        var range = this.ace.getSelectionRange();
        var doc = this.ace.session.doc;
        return {
            start: doc.positionToIndex(range.start),
            end: doc.positionToIndex(range.end)
        };
    },
    createSelection: function(start, end) {
        var doc = this.ace.session.doc;
        this.ace.selection.setRange({
            start: doc.indexToPosition(start),
            end: doc.indexToPosition(end)
        });
    },
    getCurrentLineRange: function() {
        var ace = this.ace;
        var row = ace.getCursorPosition().row;
        var lineLength = ace.session.getLine(row).length;
        var index = ace.session.doc.positionToIndex({row: row, column: 0});