zoom_search.js

CD Manager光盘资料管家婆源代码

        var loadingmsg = document.getElementById("loadingmsg");
        if (loadingmsg) loadingmsg.style.display = "None";
	if (UseCats)
		NumCats = catnames.length;

    if (Timing == 1) {
        timeStart = new Date();
    }        
		
    // Display the form
    if (FormFormat > 0) {
        document.writeln("<form method=\"get\" action=\"" + SelfURL + "\" class=\"zoom_searchform\">");
        document.writeln("<input type=\"text\" name=\"zoom_query\" size=\"20\" value=\"" + htmlspecialchars(query) + "\" class=\"zoom_searchbox\" />");
        document.writeln("<input type=\"submit\" value=\"" + STR_FORM_SUBMIT_BUTTON + "\" class=\"zoom_button\" /><br />");
        if (FormFormat == 2) {
            document.writeln("<span class=\"zoom_results_per_page\">" + STR_FORM_RESULTS_PER_PAGE + "\n");
            document.writeln("<select name=\"zoom_per_page\">");
            for (i = 0; i < PerPageOptions.length; i++) {
                document.write("<option");
                if (PerPageOptions[i] == per_page)
                    document.write(" selected=\"selected\"");
                document.writeln(">" + PerPageOptions[i] + "</option>");
            }
            document.writeln("</select><br /><br /></span>");
            if (UseCats) {
            	document.writeln("<span class=\"zoom_categories\">");
                document.write(STR_FORM_CATEGORY + " ");
                if (SearchMultiCats)
                {                                                	
	        		document.writeln("<ul>");
	        		document.write("<li><input type=\"checkbox\" name=\"zoom_cat[]\" value=\"-1\"");
	        		if (cat[0] == -1)
		        		document.write(" checked=\"checked\"");
		        	document.writeln(">" + STR_FORM_CATEGORY_ALL + "</input></li>");        		        		
	        		for (i = 0; i < NumCats; i++)  
	        		{      		
	        			document.write("<li><input type=\"checkbox\" name=\"zoom_cat[]\" value=\"" +i+ "\"");
	        			if (cat[0] != -1)
	        			{
		        			for (catit = 0; catit < num_zoom_cats; catit++)
		        			{
		        				if (i == cat[catit])
		        				{
		        					document.write(" checked=\"checked\"");
		        					break;
		        				}
		        			}
		        		}
	        			document.writeln(">"+catnames[i]+"</input></li>");
	        		}
	        		document.writeln("</ul><br /><br />");
                }
                else
                {                		
	                document.write("<select name='zoom_cat[]'>");
	                // 'all cats option
	                document.write("<option value=\"-1\">" + STR_FORM_CATEGORY_ALL + "</option>");
	                for (i = 0; i < NumCats; i++) {
	                    document.write("<option value=\"" + i + "\"");
	                    if (i == cat[0])
	                        document.write(" selected=\"selected\"");
	                    document.writeln(">" + catnames[i] + "</option>");
	                }
	                document.writeln("</select>&nbsp;&nbsp;");
	            }
	            document.writeln("</span>");
            }
            document.writeln("<span class=\"zoom_match\">" + STR_FORM_MATCH + " ");
            if (andq == 0) {
                document.writeln("<input type=\"radio\" name=\"zoom_and\" value=\"0\" checked=\"checked\" />" + STR_FORM_ANY_SEARCH_WORDS);
                document.writeln("<input type=\"radio\" name=\"zoom_and\" value=\"1\" />" + STR_FORM_ALL_SEARCH_WORDS);                                
            } else {
                document.writeln("<input type=\"radio\" name=\"zoom_and\" value=\"0\" />" + STR_FORM_ANY_SEARCH_WORDS);
                document.writeln("<input type=\"radio\" name=\"zoom_and\" value=\"1\" checked=\"checked\" />" + STR_FORM_ALL_SEARCH_WORDS);                
            }
            document.writeln("<input type=\"hidden\" name=\"zoom_sort\" value=\"" + sort + "\" />");
            document.writeln("<br /><br /></span>");
        }
        else
        {
        	document.writeln("<input type=\"hidden\" name=\"zoom_per_page\" value=\"" + per_page + "\" />");
        	document.writeln("<input type=\"hidden\" name=\"zoom_and\" value=\"" + andq + "\" />");
        	document.writeln("<input type=\"hidden\" name=\"zoom_sort\" value=\"" + sort + "\" />");
        }
        
        document.writeln("</form>");
    }

    // give up early if no search words provided
    if (query.length == 0) {
        //document.writeln("No search query entered.<br />");        
        if (ZoomInfo == 1)
            document.writeln("<center><p><small>" + STR_POWEREDBY + " <a href=\"http://www.wrensoft.com/zoom/\" target=\"_blank\"><b>Zoom Search Engine</b></a></small></p></center>");
        return;
    }

    if (MapAccents == 1) {
        for (i = 0; i < NormalChars.length; i++) {
            query = query.replace(AccentChars[i], NormalChars[i]);
        }
    }

	// Special query processing required when SearchAsSubstring is enabled
	if (SearchAsSubstring == 1 && UseUTF8 == 1)
		query = FixQueryForAsianWords(query);

    // prepare search query, strip quotes, trim whitespace
    if (WordJoinChars.indexOf(".") == -1)
        query = query.replace(/[\.+]/g, " ");

    if (WordJoinChars.indexOf("-") == -1)
        query = query.replace(/(\S)\-/g, "$1 ");

    if (WordJoinChars.indexOf("_") == -1)
        query = query.replace(/[\_+]/g, " ");

    if (WordJoinChars.indexOf("'") == -1)
        query = query.replace(/[\'+]/g, " ");

    if (WordJoinChars.indexOf("#") == -1)
        query = query.replace(/[\#+]/g, " ");

    if (WordJoinChars.indexOf("$") == -1)
        query = query.replace(/[\$+]/g, " ");

    if (WordJoinChars.indexOf("&") == -1)
        query = query.replace(/[\&+]/g, " ");

    if (WordJoinChars.indexOf(":") == -1)
        query = query.replace(/[\:+]/g, " ");

    if (WordJoinChars.indexOf(",") == -1)
    	query = query.replace(/[\,+]/g, " ");

    if (WordJoinChars.indexOf("/") == -1)
    	query = query.replace(/[\/+]/g, " ");

    if (WordJoinChars.indexOf("\\") == -1)
    	query = query.replace(/[\\+]/g, " ");
    	
    // substitute multiple whitespace chars to single character
    // also strip any of the wordjoinchars if followed immediately by a space
    query = query.replace(/[\s\(\)\^\[\]\|\+\{\}\%]+|[\-._',:&\/\\\\](\s|$)/g, " ");   
    
    // trim trailing/leading whitespace
    query = query.replace(/^\s*|\s*$/g,""); 
    
    var queryForHTML = htmlspecialchars(query);
    var queryForSearch;
    if (ToLowerSearchWords == 1)
        queryForSearch = query.toLowerCase();
    else
    	queryForSearch = query;    
    queryForSearch = htmlspecialchars(queryForSearch);    

    // split search phrase into words
    searchWords = queryForSearch.split(" "); // split by spaces.
    
    // Sort search words if there are negative signs
    if (queryForSearch.indexOf("-") != -1)
    	searchWords.sort(sw_compare);      

	var query_zoom_cats = "";

    document.write("<div class=\"searchheading\">" + STR_RESULTS_FOR + " " + queryForHTML);
    if (UseCats) {
        if (cat[0] == -1)
        {
            document.writeln(" " + STR_RESULTS_IN_ALL_CATEGORIES);
            query_zoom_cats = "&amp;zoom_cat%5B%5D=-1";
        }
        else
        {
            document.writeln(" " + STR_RESULTS_IN_CATEGORY + " ");
            for (catit = 0; catit < num_zoom_cats; catit++)
            {
            	if (catit > 0)
            		document.write(", ");
            	document.write("\"" + catnames[cat[catit]] + "\"");
            	query_zoom_cats += "&amp;zoom_cat%5B%5D="+cat[catit];
            }
        }
    }
    document.writeln("<br /><br /></div>");

    document.writeln("<div class=\"results\">");

    numwords = searchWords.length;
    kw_ptr = 0;
    outputline = 0;    
    ipage = 0;
    matches = 0;
    var SWord;
    pagesCount = pageinfo.length;
    
    exclude_count = 0;
    ExcludeTerm = 0;
    
    // Initialise a result table the size of all pages
    res_table = new Array(pagesCount);
    for (i = 0; i < pagesCount; i++)
    {
        res_table[i] = new Array(3);
        res_table[i][0] = 0;
        res_table[i][1] = 0;
        res_table[i][2] = 0;
    }
    
    var UseWildCards = new Array(numwords);    
        
    for (sw = 0; sw < numwords; sw++) {

    	UseWildCards[sw] = 0;

    	if (skipwords) {
            // check min length
            if (searchWords[sw].length < MinWordLen) {
                SkipSearchWord(sw);
                continue;
            }
            // check skip word list
            for (i = 0; i < skipwords.length; i++) {
                if (searchWords[sw] == skipwords[i]) {
                    SkipSearchWord(sw);
                    break;
                }
            }
        }

        if (searchWords[sw].indexOf("*") == -1 && searchWords[sw].indexOf("?") == -1) {
            UseWildCards[sw] = 0;
        } else {
            UseWildCards[sw] = 1;
            RegExpSearchWords[sw] = pattern2regexp(searchWords[sw]);
        }
        
        if (Highlighting == 1 && UseWildCards[sw] == 0)
        	RegExpSearchWords[sw] = searchWords[sw];        	    	
    }
                   
    // Begin searching...
    for (sw = 0; sw < numwords; sw++) {

        if (searchWords[sw] == "") {
        	SkippedWords++;
            continue;
        }

		if (searchWords[sw].charAt(0) == '-')
		{			
			searchWords[sw] = searchWords[sw].substr(1);			
			ExcludeTerm = 1;
			exclude_count++;			
		}
		
		if (UseWildCards[sw] == 1) {            
            if (SearchAsSubstring == 0)
                pattern = "^" + RegExpSearchWords[sw] + "$";
            else
                pattern = RegExpSearchWords[sw];
            re = new RegExp(pattern, "g");
        }

        for (kw_ptr = 0; kw_ptr < dictwords.length; kw_ptr++) {

            data = dictwords[kw_ptr].split(" ");

            if (UseWildCards[sw] == 0) {
                if (SearchAsSubstring == 0)
                    match_result = wordcasecmp(data[0], searchWords[sw]);
                else
                    match_result = data[0].indexOf(searchWords[sw]);
            } else
                match_result = data[0].search(re);


            if (match_result != -1) {
                // keyword found, include it in the output list
                for (kw = 1; kw < data.length; kw += 2) {
                    // check if page is already in output list
                    pageexists = 0;
                    ipage = data[kw];
                    
                    if (ExcludeTerm == 1)
                    {
                    	// we clear out the score entry so that it'll be excluded in the filter stage
                    	res_table[ipage][0] = 0;
                    }                    
                    else if (res_table[ipage][0] == 0) {
                        matches++;
                        res_table[ipage][0] += parseInt(data[kw+1]);
                    }
                    else {

                        if (res_table[ipage][0] > 10000) {
                            // take it easy if its too big to prevent gigantic scores
                            res_table[ipage][0] += 1;
                        } else {
                            res_table[ipage][0] += parseInt(data[kw+1]); // add in score
                            res_table[ipage][0] *= 2;           // double score as we have two words matching
                        }
                    }
                    res_table[ipage][1] += 1;
                    // store the 'and' user search terms matched' value
                    if (res_table[ipage][2] == sw || res_table[ipage][2] == sw-SkippedWords-exclude_count)
                        res_table[ipage][2] += 1;

                }
                if (UseWildCards[sw] == 0 && SearchAsSubstring == 0)
                    break;    // this search word was found, so skip to next
            }
        }
	}
    
    if (SkippedWords > 0)
        document.writeln("<div class=\"summary\">" + STR_SKIPPED_FOLLOWING_WORDS + " " + SkippedOutputStr + ".<br /><br /></div>");

    // Count number of output lines that match ALL search terms
    oline = 0;
    fullmatches = 0;    
    output = new Array();
    var full_numwords = numwords - SkippedWords - exclude_count;
    for (i = 0; i < pagesCount; i++) {
        IsFiltered = false;
        if (res_table[i][0] > 0) {
            if (UseCats && cat[0] != -1) {
                // using cats and not doing an "all cats" search
                if (SearchMultiCats) {
                	for (cati = 0; cati < num_zoom_cats; cati++) {                		
                		if (pageinfo[i][PAGEINFO_CAT].charAt(cat[cati]) == "1")
                			break;