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 *
 * Copyright (c) 2010, Ajax.org B.V.
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 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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ace.define('ace/mode/xquery', ['require', 'exports', 'module' , 'ace/worker/worker_client', 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/xquery_highlight_rules', 'ace/mode/behaviour/xquery', 'ace/range'], function(require, exports, module) {


var WorkerClient = require("../worker/worker_client").WorkerClient;
var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var XQueryHighlightRules = require("./xquery_highlight_rules").XQueryHighlightRules;
var XQueryBehaviour = require("./behaviour/xquery").XQueryBehaviour;
//var XQueryBackgroundHighlighter = require("./xquery_background_highlighter").XQueryBackgroundHighlighter;
var Range = require("../range").Range;

var Mode = function(parent) {
    this.$tokenizer   = new Tokenizer(new XQueryHighlightRules().getRules());
    this.$behaviour   = new XQueryBehaviour(parent);
};

oop.inherits(Mode, TextMode);

(function() {

    this.getNextLineIndent = function(state, line, tab) {
      var indent = this.$getIndent(line);
      var match = line.match(/\s*(?:then|else|return|[{\(]|<\w+>)\s*$/);
      if (match)
        indent += tab;
        return indent;
    };
    
    this.checkOutdent = function(state, line, input) {
      if (! /^\s+$/.test(line))
            return false;

        return /^\s*[\}\)]/.test(input);
    };
    
    this.autoOutdent = function(state, doc, row) {
      var line = doc.getLine(row);
        var match = line.match(/^(\s*[\}\)])/);

        if (!match) return 0;

        var column = match[1].length;
        var openBracePos = doc.findMatchingBracket({row: row, column: column});

        if (!openBracePos || openBracePos.row == row) return 0;

        var indent = this.$getIndent(doc.getLine(openBracePos.row));
        doc.replace(new Range(row, 0, row, column-1), indent);
    };

    this.$getIndent = function(line) {
        var match = line.match(/^(\s+)/);
        if (match) {
            return match[1];
        }

        return "";
    };
    
    this.toggleCommentLines = function(state, doc, startRow, endRow) {
        var i, line;
        var outdent = true;
        var re = /^\s*\(:(.*):\)/;

        for (i=startRow; i<= endRow; i++) {
            if (!re.test(doc.getLine(i))) {
                outdent = false;
                break;
            }
        }

        var range = new Range(0, 0, 0, 0);
        for (i=startRow; i<= endRow; i++) {
            line = doc.getLine(i);
            range.start.row  = i;
            range.end.row    = i;
            range.end.column = line.length;

            doc.replace(range, outdent ? line.match(re)[1] : "(:" + line + ":)");
        }
    };
    
    this.createWorker = function(session) {
        this.$deltas = [];
        var worker = new WorkerClient(["ace"], "ace/mode/xquery_worker", "XQueryWorker");
        var that = this;

        session.getDocument().on('change', function(evt){
          that.$deltas.push(evt.data);
        });

        worker.attachToDocument(session.getDocument());
        
        worker.on("start", function(e) {
          //console.log("start");
          that.$deltas = [];
        });

        worker.on("error", function(e) {
          session.setAnnotations([e.data]);
        });
        
        worker.on("ok", function(e) {
            session.clearAnnotations();
        });
        
        worker.on("highlight", function(tokens) {
          var firstRow = 0;
          var lastRow = session.getLength() - 1;
          
          var lines = tokens.data.lines;
          var states = tokens.data.states;
          
          for(var i=0; i < that.$deltas.length; i++)
          {
            var delta = that.$deltas[i];
         
            if (delta.action === "insertLines")
            {
              var newLineCount = delta.lines.length;
              for (var i = 0; i < newLineCount; i++) {
                lines.splice(delta.range.start.row + i, 0, undefined);
                states.splice(delta.range.start.row + i, 0, undefined);
              }
            }
            else if (delta.action === "insertText")
            {
              if (session.getDocument().isNewLine(delta.text))
              {
                lines.splice(delta.range.end.row, 0, undefined);
                states.splice(delta.range.end.row, 0, undefined);
              } else {
                lines[delta.range.start.row] = undefined;
                states[delta.range.start.row] = undefined;
              } 
            } else if (delta.action === "removeLines") {
              var oldLineCount = delta.lines.length;
              lines.splice(delta.range.start.row, oldLineCount);
              states.splice(delta.range.start.row, oldLineCount);
            } else if (delta.action === "removeText") {
              if (session.getDocument().isNewLine(delta.text))
              {
                lines[delta.range.start.row] = undefined;
                lines.splice(delta.range.end.row, 1);
                states[delta.range.start.row] = undefined;
                states.splice(delta.range.end.row, 1);
              } else {
                lines[delta.range.start.row] = undefined;
                states[delta.range.start.row] = undefined;
              }
            }           
          }
          session.bgTokenizer.lines = lines;
          session.bgTokenizer.states = states;
          session.bgTokenizer.fireUpdateEvent(firstRow, lastRow);
        });
        
        return worker;
    };
    
}).call(Mode.prototype);

exports.Mode = Mode;
});
ace.define('ace/mode/xquery_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text_highlight_rules'], function(require, exports, module) {


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

var XQueryHighlightRules = function() {

    var keywordMapper = this.createKeywordMapper({
        keyword: "after|ancestor|ancestor-or-self|and|as|ascending|attribute|before|case|cast|castable|child|collation|comment|copy|count|declare|default|delete|descendant|descendant-or-self|descending|div|document|document-node|element|else|empty|empty-sequence|end|eq|every|except|first|following|following-sibling|for|function|ge|group|gt|idiv|if|import|insert|instance|intersect|into|is|item|last|le|let|lt|mod|modify|module|namespace|namespace-node|ne|node|only|or|order|ordered|parent|preceding|preceding-sibling|processing-instruction|rename|replace|return|satisfies|schema-attribute|schema-element|self|some|stable|start|switch|text|to|treat|try|typeswitch|union|unordered|validate|where|with|xquery|contains|paragraphs|sentences|times|words|by|collectionreturn|variable|version|option|when|encoding|toswitch|catch|tumbling|sliding|window|at|using|stemming|collection|schema|while|on|nodes|index|external|then|in|updating|value|of|containsbreak|loop|continue|exit|returning|append|json|position"
    }, "identifier");

    // regexp must not have capturing parentheses
    // regexps are ordered -> the first match is used

    this.$rules = {
        start : [ {
            token : "text",
            regex : "<\\!\\[CDATA\\[",
            next : "cdata"
        }, {
            token : "xml_pe",
            regex : "<\\?.*?\\?>"
        }, {
            token : "comment",
            regex : "<\\!--",
            next : "comment"
    }, {
      token : "comment",
      regex : "\\(:",
      next : "comment"
        }, {
            token : "text", // opening tag
            regex : "<\\/?",
            next : "tag"
        }, {
            token : "constant", // number
            regex : "[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?\\b"
    }, {
            token : "variable", // variable
            regex : "\\$[a-zA-Z_][a-zA-Z0-9_\\-:]*\\b"
    }, {
      token: "string",
      regex : '".*?"'
    }, {
      token: "string",
      regex : "'.*?'"
        }, {
            token : "text",
            regex : "\\s+"
        }, {
            token: "support.function",
            regex: "\\w[\\w+_\\-:]+(?=\\()"
        }, {
      token : keywordMapper,
      regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
    }, {
            token: "keyword.operator",
            regex: "\\*|=|<|>|\\-|\\+"
        }, {
            token: "lparen",
            regex: "[[({]"
        }, {
            token: "rparen",
            regex: "[\\])}]"
        } ],

        tag : [ {
            token : "text",
            regex : ">",
            next : "start"
        }, {
            token : "meta.tag",
            regex : "[-_a-zA-Z0-9:]+"
        }, {
            token : "text",
            regex : "\\s+"
        }, {
            token : "string",
            regex : '".*?"'
        }, {
            token : "string",
            regex : "'.*?'"
        } ],

        cdata : [ {
            token : "comment",
            regex : "\\]\\]>",
            next : "start"
        }, {
            token : "comment",
            regex : "\\s+"
        }, {
            token : "comment",
            regex : "(?:[^\\]]|\\](?!\\]>))+"
        } ],

        comment : [ {
            token : "comment",
            regex : ".*?-->",
            next : "start"
        }, {
      token: "comment",
      regex : ".*:\\)",
      next : "start"
        }, {
            token : "comment",
            regex : ".+"
    } ]
    };
};

oop.inherits(XQueryHighlightRules, TextHighlightRules);

exports.XQueryHighlightRules = XQueryHighlightRules;
});
ace.define('ace/mode/behaviour/xquery', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/behaviour', 'ace/mode/behaviour/cstyle'], function(require, exports, module) {


  var oop = require("../../lib/oop");
  var Behaviour = require('../behaviour').Behaviour;
  var CstyleBehaviour = require('./cstyle').CstyleBehaviour;

  var XQueryBehaviour = function (parent) {
      
      this.inherit(CstyleBehaviour, ["braces", "parens", "string_dquotes"]); // Get string behaviour
      this.parent = parent;
      
//      this.add("brackets", "insertion", function (state, action, editor, session, text) {
//          if (text == "\n") {
//              var cursor = editor.getCursorPosition();
//              var line = session.doc.getLine(cursor.row);
//              var rightChars = line.substring(cursor.column, cursor.column + 2);
//              if (rightChars == '</') {
//                  var indent = this.$getIndent(session.doc.getLine(cursor.row)) + session.getTabString();
//                  var next_indent = this.$getIndent(session.doc.getLine(cursor.row));
//
//                  return {
//                      text: '\n' + indent + '\n' + next_indent,
//                      selection: [1, indent.length, 1, indent.length]
//                  }
//              }
//          }
//          return false;
//      });

      // Check for open tag if user enters / and auto-close it.
//      this.add("slash", "insertion", function (state, action, editor, session, text) {
//        if (text == "/") {
//          var cursor = editor.getCursorPosition();
//        var line = session.doc.getLine(cursor.row);
//        if (cursor.column > 0 && line.charAt(cursor.column - 1) == "<") {
//          line = line.substring(0, cursor.column) + "/" + line.substring(cursor.column);
//          var lines = session.doc.getAllLines();
//          lines[cursor.row] = line;
//          // call mode helper to close the tag if possible
//          parent.exec("closeTag", lines.join(session.doc.getNewLineCharacter()), cursor.row);
//        }
//        }
//      return false;
//      });
  }
  oop.inherits(XQueryBehaviour, Behaviour);

  exports.XQueryBehaviour = XQueryBehaviour;
});

ace.define('ace/mode/behaviour/cstyle', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/behaviour'], function(require, exports, module) {


var oop = require("../../lib/oop");
var Behaviour = require("../behaviour").Behaviour;

var CstyleBehaviour = function () {

    this.add("braces", "insertion", function (state, action, editor, session, text) {
        if (text == '{') {
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: '{' + selected + '}',
                    selection: false
                };
            } else {
                return {
                    text: '{}',
                    selection: [1, 1]
                };
            }
        } else if (text == '}') {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == '}') {
                var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
                if (matching !== null) {
                    return {
                        text: '',
                        selection: [1, 1]
                    };
                }
            }
        } else if (text == "\n") {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == '}') {
                var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column + 1});
                if (!openBracePos)
                     return null;

                var indent = this.getNextLineIndent(state, line.substring(0, line.length - 1), session.getTabString());
                var next_indent = this.$getIndent(session.doc.getLine(openBracePos.row));

                return {
                    text: '\n' + indent + '\n' + next_indent,
                    selection: [1, indent.length, 1, indent.length]
                };
            }
        }
    });

    this.add("braces", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && selected == '{') {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.end.column, range.end.column + 1);
            if (rightChar == '}') {
                range.end.column++;
                return range;
            }
        }
    });

    this.add("parens", "insertion", function (state, action, editor, session, text) {
        if (text == '(') {
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: '(' + selected + ')',
                    selection: false
                };
            } else {
                return {
                    text: '()',
                    selection: [1, 1]
                };
            }
        } else if (text == ')') {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == ')') {
                var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
                if (matching !== null) {
                    return {
                        text: '',
                        selection: [1, 1]
                    };
                }
            }
        }
    });

    this.add("parens", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && selected == '(') {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
            if (rightChar == ')') {
                range.end.column++;
                return range;
            }
        }
    });

    this.add("brackets", "insertion", function (state, action, editor, session, text) {
        if (text == '[') {
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: '[' + selected + ']',
                    selection: false
                };
            } else {
                return {
                    text: '[]',
                    selection: [1, 1]
                };
            }
        } else if (text == ']') {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == ']') {
                var matching = session.$findOpeningBracket(']', {column: cursor.column + 1, row: cursor.row});
                if (matching !== null) {
                    return {
                        text: '',
                        selection: [1, 1]
                    };
                }
            }
        }
    });

    this.add("brackets", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && selected == '[') {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
            if (rightChar == ']') {
                range.end.column++;
                return range;
            }
        }
    });

    this.add("string_dquotes", "insertion", function (state, action, editor, session, text) {
        if (text == '"' || text == "'") {
            var quote = text;
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: quote + selected + quote,
                    selection: false
                };
            } else {
                var cursor = editor.getCursorPosition();
                var line = session.doc.getLine(cursor.row);
                var leftChar = line.substring(cursor.column-1, cursor.column);

                // We're escaped.
                if (leftChar == '\\') {
                    return null;
                }

                // Find what token we're inside.
                var tokens = session.getTokens(selection.start.row);
                var col = 0, token;
                var quotepos = -1; // Track whether we're inside an open quote.

                for (var x = 0; x < tokens.length; x++) {
                    token = tokens[x];
                    if (token.type == "string") {
                      quotepos = -1;
                    } else if (quotepos < 0) {
                      quotepos = token.value.indexOf(quote);
                    }
                    if ((token.value.length + col) > selection.start.column) {
                        break;
                    }
                    col += tokens[x].value.length;
                }

                // Try and be smart about when we auto insert.
                if (!token || (quotepos < 0 && token.type !== "comment" && (token.type !== "string" || ((selection.start.column !== token.value.length+col-1) && token.value.lastIndexOf(quote) === token.value.length-1)))) {
                    return {
                        text: quote + quote,
                        selection: [1,1]
                    };
                } else if (token && token.type === "string") {
                    // Ignore input and move right one if we're typing over the closing quote.
                    var rightChar = line.substring(cursor.column, cursor.column + 1);
                    if (rightChar == quote) {
                        return {
                            text: '',
                            selection: [1, 1]
                        };
                    }
                }
            }
        }
    });

    this.add("string_dquotes", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && (selected == '"' || selected == "'")) {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
            if (rightChar == '"') {
                range.end.column++;
                return range;
            }
        }
    });

};

oop.inherits(CstyleBehaviour, Behaviour);

exports.CstyleBehaviour = CstyleBehaviour;
});