(function() {          
            
    function createShiftArr(step) {

        var space = '    ';
        
        if ( isNaN(parseInt(step)) ) {  // argument is string
            space = step;
        } else { // argument is integer
            switch(step) {
                case 1: space = ' '; break;
                case 2: space = '  '; break;
                case 3: space = '   '; break;
                case 4: space = '    '; break;
                case 5: space = '     '; break;
                case 6: space = '      '; break;
                case 7: space = '       '; break;
                case 8: space = '        '; break;
                case 9: space = '         '; break;
                case 10: space = '          '; break;
                case 11: space = '           '; break;
                case 12: space = '            '; break;
            }
        }

        var shift = ['\n']; // array of shifts
        for(ix=0;ix<100;ix++){
            shift.push(shift[ix]+space); 
        }
        return shift;
    }

    function vkbeautify(){
        this.step = '    '; // 4 spaces
        this.shift = createShiftArr(this.step);
    };

    vkbeautify.prototype.xml = function(text,step) {

        var ar = text.replace(/>\s{0,}</g,"><")
                     .replace(/</g,"~::~<")
                     .replace(/\s*xmlns\:/g,"~::~xmlns:")
                     .replace(/\s*xmlns\=/g,"~::~xmlns=")
                     .split('~::~'),
            len = ar.length,
            inComment = false,
            deep = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;

            for(ix=0;ix<len;ix++) {
                // start comment or <![CDATA[...]]> or <!DOCTYPE //
                if(ar[ix].search(/<!/) > -1) { 
                    str += shift[deep]+ar[ix];
                    inComment = true; 
                    // end comment  or <![CDATA[...]]> //
                    if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1 || ar[ix].search(/!DOCTYPE/) > -1 ) { 
                        inComment = false; 
                    }
                } else 
                // end comment  or <![CDATA[...]]> //
                if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1) { 
                    str += ar[ix];
                    inComment = false; 
                } else 
                // <elm></elm> //
                if( /^<\w/.exec(ar[ix-1]) && /^<\/\w/.exec(ar[ix]) &&
                    /^<[\w:\-\.\,]+/.exec(ar[ix-1]) == /^<\/[\w:\-\.\,]+/.exec(ar[ix])[0].replace('/','')) { 
                    str += ar[ix];
                    if(!inComment) deep--;
                } else
                 // <elm> //
                if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) == -1 && ar[ix].search(/\/>/) == -1 ) {
                    str = !inComment ? str += shift[deep++]+ar[ix] : str += ar[ix];
                } else 
                 // <elm>...</elm> //
                if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) > -1) {
                    str = !inComment ? str += shift[deep]+ar[ix] : str += ar[ix];
                } else 
                // </elm> //
                if(ar[ix].search(/<\//) > -1) { 
                    str = !inComment ? str += shift[--deep]+ar[ix] : str += ar[ix];
                } else 
                // <elm/> //
                if(ar[ix].search(/\/>/) > -1 ) { 
                    str = !inComment ? str += shift[deep]+ar[ix] : str += ar[ix];
                } else 
                // <? xml ... ?> //
                if(ar[ix].search(/<\?/) > -1) { 
                    str += shift[deep]+ar[ix];
                } else 
                // xmlns //
                if( ar[ix].search(/xmlns\:/) > -1  || ar[ix].search(/xmlns\=/) > -1) { 
                    str += shift[deep]+ar[ix];
                } 
                
                else {
                    str += ar[ix];
                }
            }
            
        return  (str[0] == '\n') ? str.slice(1) : str;
    }

    vkbeautify.prototype.json = function(text,step) {

        var step = step ? step : this.step;
        
        if (typeof JSON === 'undefined' ) return text; 
        
        if ( typeof text === "string" ) return JSON.stringify(JSON.parse(text), null, step);
        if ( typeof text === "object" ) return JSON.stringify(text, null, step);
            
        return text; // text is not string nor object
    }

    vkbeautify.prototype.css = function(text, step) {

        var ar = text.replace(/\s{1,}/g,' ')
                    .replace(/\{/g,"{~::~")
                    .replace(/\}/g,"~::~}~::~")
                    .replace(/\;/g,";~::~")
                    .replace(/\/\*/g,"~::~/*")
                    .replace(/\*\//g,"*/~::~")
                    .replace(/~::~\s{0,}~::~/g,"~::~")
                    .split('~::~'),
            len = ar.length,
            deep = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;
            
            for(ix=0;ix<len;ix++) {

                if( /\{/.exec(ar[ix]))  { 
                    str += shift[deep++]+ar[ix];
                } else 
                if( /\}/.exec(ar[ix]))  { 
                    str += shift[--deep]+ar[ix];
                } else
                if( /\*\\/.exec(ar[ix]))  { 
                    str += shift[deep]+ar[ix];
                }
                else {
                    str += shift[deep]+ar[ix];
                }
            }
            return str.replace(/^\n{1,}/,'');
    }

    //----------------------------------------------------------------------------

    function isSubquery(str, parenthesisLevel) {
        return  parenthesisLevel - (str.replace(/\(/g,'').length - str.replace(/\)/g,'').length )
    }

    function split_sql(str, tab) {

        return str.replace(/\s{1,}/g," ")

                    .replace(/ AND /ig,"~::~"+tab+tab+"AND ")
                    .replace(/ BETWEEN /ig,"~::~"+tab+"BETWEEN ")
                    .replace(/ CASE /ig,"~::~"+tab+"CASE ")
                    .replace(/ ELSE /ig,"~::~"+tab+"ELSE ")
                    .replace(/ END /ig,"~::~"+tab+"END ")
                    .replace(/ FROM /ig,"~::~FROM ")
                    .replace(/ GROUP\s{1,}BY/ig,"~::~GROUP BY ")
                    .replace(/ HAVING /ig,"~::~HAVING ")
                    //.replace(/ SET /ig," SET~::~")
                    .replace(/ IN /ig," IN ")
                    
                    .replace(/ JOIN /ig,"~::~JOIN ")
                    .replace(/ CROSS~::~{1,}JOIN /ig,"~::~CROSS JOIN ")
                    .replace(/ INNER~::~{1,}JOIN /ig,"~::~INNER JOIN ")
                    .replace(/ LEFT~::~{1,}JOIN /ig,"~::~LEFT JOIN ")
                    .replace(/ RIGHT~::~{1,}JOIN /ig,"~::~RIGHT JOIN ")
                    
                    .replace(/ ON /ig,"~::~"+tab+"ON ")
                    .replace(/ OR /ig,"~::~"+tab+tab+"OR ")
                    .replace(/ ORDER\s{1,}BY/ig,"~::~ORDER BY ")
                    .replace(/ OVER /ig,"~::~"+tab+"OVER ")

                    .replace(/\(\s{0,}SELECT /ig,"~::~(SELECT ")
                    .replace(/\)\s{0,}SELECT /ig,")~::~SELECT ")
                    
                    .replace(/ THEN /ig," THEN~::~"+tab+"")
                    .replace(/ UNION /ig,"~::~UNION~::~")
                    .replace(/ USING /ig,"~::~USING ")
                    .replace(/ WHEN /ig,"~::~"+tab+"WHEN ")
                    .replace(/ WHERE /ig,"~::~WHERE ")
                    .replace(/ WITH /ig,"~::~WITH ")
                    
                    //.replace(/\,\s{0,}\(/ig,",~::~( ")
                    //.replace(/\,/ig,",~::~"+tab+tab+"")

                    .replace(/ ALL /ig," ALL ")
                    .replace(/ AS /ig," AS ")
                    .replace(/ ASC /ig," ASC ")	
                    .replace(/ DESC /ig," DESC ")	
                    .replace(/ DISTINCT /ig," DISTINCT ")
                    .replace(/ EXISTS /ig," EXISTS ")
                    .replace(/ NOT /ig," NOT ")
                    .replace(/ NULL /ig," NULL ")
                    .replace(/ LIKE /ig," LIKE ")
                    .replace(/\s{0,}SELECT /ig,"SELECT ")
                    .replace(/\s{0,}UPDATE /ig,"UPDATE ")
                    .replace(/ SET /ig," SET ")
                                
                    .replace(/~::~{1,}/g,"~::~")
                    .split('~::~');
    }

    vkbeautify.prototype.sql = function(text,step) {

        var ar_by_quote = text.replace(/\s{1,}/g," ")
                                .replace(/\'/ig,"~::~\'")
                                .split('~::~'),
            len = ar_by_quote.length,
            ar = [],
            deep = 0,
            tab = this.step,//+this.step,
            inComment = true,
            inQuote = false,
            parenthesisLevel = 0,
            str = '',
            ix = 0,
            shift = step ? createShiftArr(step) : this.shift;;

            for(ix=0;ix<len;ix++) {
                if(ix%2) {
                    ar = ar.concat(ar_by_quote[ix]);
                } else {
                    ar = ar.concat(split_sql(ar_by_quote[ix], tab) );
                }
            }
            
            len = ar.length;
            for(ix=0;ix<len;ix++) {
                
                parenthesisLevel = isSubquery(ar[ix], parenthesisLevel);
                
                if( /\s{0,}\s{0,}SELECT\s{0,}/.exec(ar[ix]))  { 
                    ar[ix] = ar[ix].replace(/\,/g,",\n"+tab+tab+"")
                } 
                
                if( /\s{0,}\s{0,}SET\s{0,}/.exec(ar[ix]))  { 
                    ar[ix] = ar[ix].replace(/\,/g,",\n"+tab+tab+"")
                } 
                
                if( /\s{0,}\(\s{0,}SELECT\s{0,}/.exec(ar[ix]))  { 
                    deep++;
                    str += shift[deep]+ar[ix];
                } else 
                if( /\'/.exec(ar[ix]) )  { 
                    if(parenthesisLevel<1 && deep) {
                        deep--;
                    }
                    str += ar[ix];
                }
                else  { 
                    str += shift[deep]+ar[ix];
                    if(parenthesisLevel<1 && deep) {
                        deep--;
                    }
                } 
                var junk = 0;
            }

            str = str.replace(/^\n{1,}/,'').replace(/\n{1,}/g,"\n");
            return str;
    }


    vkbeautify.prototype.xmlmin = function(text, preserveComments) {

        var str = preserveComments ? text
                                   : text.replace(/\<![ \r\n\t]*(--([^\-]|[\r\n]|-[^\-])*--[ \r\n\t]*)\>/g,"")
                                         .replace(/[ \r\n\t]{1,}xmlns/g, ' xmlns');
        return  str.replace(/>\s{0,}</g,"><"); 
    }

    vkbeautify.prototype.jsonmin = function(text) {

        if (typeof JSON === 'undefined' ) return text; 
        
        return JSON.stringify(JSON.parse(text), null, 0); 
                    
    }

    vkbeautify.prototype.cssmin = function(text, preserveComments) {
        
        var str = preserveComments ? text
                                   : text.replace(/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g,"") ;

        return str.replace(/\s{1,}/g,' ')
                  .replace(/\{\s{1,}/g,"{")
                  .replace(/\}\s{1,}/g,"}")
                  .replace(/\;\s{1,}/g,";")
                  .replace(/\/\*\s{1,}/g,"/*")
                  .replace(/\*\/\s{1,}/g,"*/");
    }

    vkbeautify.prototype.sqlmin = function(text) {
        return text.replace(/\s{1,}/g," ").replace(/\s{1,}\(/,"(").replace(/\s{1,}\)/,")");
    }

    window.vkbeautify = new vkbeautify();

    })();