// ----------------------------------------------------------------------------
// Zoom Search Engine 4.0 (23/02/2005)
//
// This file (search.js) is the JavaScript search front-end for client side
// searches using index files created by the Zoom Search Engine Indexer.
//
// email: zoom@wrensoft.com
// www: http://www.wrensoft.com
//
// Copyright (C) Wrensoft 2000-2003
//
// This script performs client-side searching with the index data file
// (zoom_index.js) generated by the Zoom Search Engine Indexer. It allows you
// to run searches on mediums such as CD-ROMs, or other local data, where a
// web server is not available.
//
// We recommend against using client-side searches for online websites because
// it requires the entire index data file to be downloaded onto the user's
// local machine. This can be very slow for large websites, and our server-side
// search scripts (search.php and search.asp) are far better suited for this.
// However, JavaScript is still an option for smaller websites in a limited
// hosting situation (eg: no PHP or ASP)
// ----------------------------------------------------------------------------

// Include required files for index data, settings, etc.
document.write("<script language=\"JavaScript\" src=\"zoom_index.js\" charset=\"" + Charset + "\"><\/script>");
document.write("<script language=\"JavaScript\" src=\"zoom_pages.js\" charset=\"" + Charset + "\"><\/script>");
document.write("<script language=\"JavaScript\" src=\"zoom_titles.js\" charset=\"" + Charset + "\"><\/script>");
document.write("<script language=\"JavaScript\" src=\"zoom_descriptions.js\" charset=\"" + Charset + "\"><\/script>");

document.write("<meta HTTP-EQUIV=\"content-type\" CONTENT=\"text/html; charset=" + Charset + "\">");
if (document.charset)
	document.charset = Charset;	// IE4+ only

// ----------------------------------------------------------------------------
// Settings (change if necessary)
// ----------------------------------------------------------------------------

// The options available in the dropdown menu for number of results
// per page
var PerPageOptions = new Array(5, 10, 20);

// Globals
var SkippedWords = 0;
var searchWords = new Array();
var SkippedOutputStr = "";

var months = new Array('Ene','Feb','Mar','Abr','May','Jun','Jul','Ago','Sep','Oct','Nov','Dic');

// ----------------------------------------------------------------------------
// Helper Functions
// ----------------------------------------------------------------------------

// This function will return the value of a GET parameter
function getParam(paramName)
{
paramStr = document.location.search;
if (paramStr == "")
return "";

// remove '?' in front of paramStr
if (paramStr.charAt(0) == "?")
paramStr = paramStr.substring(1, paramStr.length);

arg = (paramStr.split("&"));
for (i=0; i < arg.length; i++) {
arg_values = arg[i].split("=")
if (unescape(arg_values[0]) == paramName) {
if (UseUTF8 == 1 && self.decodeURIComponent) // check if decodeURIComponent() is defined
ret = decodeURIComponent(arg_values[1]);
else
ret = unescape(arg_values[1]);// IE 5.0 and older does not have decodeURI
return ret;
}
}
return "";
}

// Compares the two values, used for sorting output results
// Results that match all search terms are put first, highest score
function SortCompare (a, b)
{
if (a[2] < b[2]) return 1;
else if (a[2] > b[2]) return -1;
else if (a[1] < b[1]) return 1;
else if (a[1] > b[1]) return -1;
else return 0;
}

function SortByDate(a, b)
{
	if (datetime[a[0]] < datetime[b[0]]) return 1;
	else if (datetime[a[0]] > datetime[b[0]]) return -1;
	else return SortCompare(a, b);
}


function pattern2regexp(pattern)
{
pattern = pattern.replace(/\#/g, "\\#");
pattern = pattern.replace(/\$/g, "\\$");
pattern = pattern.replace(/\./g, "\\.");
pattern = pattern.replace(/\*/g, "[\\d\\S]*");
pattern = pattern.replace(/\?/g, ".?");
return pattern;
}

function HighlightDescription(line) {
res = " " + line + " ";
for (i = 0; i < numwords; i++) {
if (searchWords[i] == "")
continue;

if (SearchAsSubstring == 1)
res = res.replace(new RegExp("("+searchWords[i]+")", "gi"), "[;:]$1[:;]");
else
res = res.replace(new RegExp("(\\W|^|\\b)("+searchWords[i]+")(\\W|$|\\b)", "gi"), "$1[;:]$2[:;]$3");
}
// replace the marker text with the html text
// this is to avoid finding previous <span>'ed text.
res = res.replace(/\[;:\]/g, "<span class=\"highlight\">");
res = res.replace(/\[:;\]/g, "</span>");
return res;
}

function PrintNumResults(num)
{
if (num == 0)
return STR_NO_RESULTS;
else if (num == 1)
return num + " " + STR_RESULT;
else
return num + " " + STR_RESULTS;
}


function SkipSearchWord(sw) {
if (searchWords[sw] != "") {
if (SkippedWords > 0)
SkippedOutputStr += ", ";
SkippedOutputStr += "\"<b>" + searchWords[sw] + "</b>\"";
searchWords[sw] = "";
}
SkippedWords++;
}


// ----------------------------------------------------------------------------
// Parameters initialisation (globals)
// ----------------------------------------------------------------------------

var query = getParam("zoom_query");
query = query.replace(/[\++]/g, " ");// replace the '+' with spaces
query = query.replace(/[,+]/g, " ");
query = query.replace(/\</g, "&lt;");
query = query.replace(/[\"+]/g, " ");

var per_page = parseInt(getParam("zoom_per_page"));
if (isNaN(per_page)) per_page = 10;

var page = parseInt(getParam("zoom_page"));
if (isNaN(page)) page = 1;

var andq = parseInt(getParam("zoom_and"));
if (isNaN(andq))
{
	if (typeof(DefaultToAnd) != "undefined" && DefaultToAnd == 1)
		andq = 1;
	else
		andq = 0;
}

var cat = parseInt(getParam("zoom_cat"));
if (isNaN(cat)) cat = -1; // search all categories

// for sorting options. zero is default (relevance)
// 1 is sort by date (if date/time is available)
var sort = parseInt(getParam("zoom_sort"));
if (isNaN(sort)) sort = 0;

var SelfURL = "";
if (typeof(LinkBackURL) == "undefined")
{
SelfURL = document.location.href;
var paramIndex = SelfURL.indexOf("?");
if (paramIndex > -1)
SelfURL = SelfURL.substr(0, paramIndex);// strip off the parameters
}
else
SelfURL = LinkBackURL;

/*
if (typeof(catnames) != "undefined" && typeof(catpages) != "undefined")
UseCats = true;
else
UseCats = false;
*/

var data = new Array();
var output = new Array();

target = "";
if (UseLinkTarget == 1)
target = " target=\"" + LinkTarget + "\" ";



// ----------------------------------------------------------------------------
// Main search function starts here
// ----------------------------------------------------------------------------

function ZoomSearch() {

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=\"" + query + "\" class=\"zoom_searchbox\" />");
document.writeln("<input type=\"submit\" value=\"" + STR_FORM_SUBMIT_BUTTON + "\" class=\"zoom_button\" />");

if (FormFormat == 2) {
document.writeln("<span class=\"zoom_options\">" + 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 />");

if (UseCats) {
document.write(STR_FORM_CATEGORY + " ");
document.write("<select name='zoom_cat'>");
// 'all cats option
document.write("<option value=\"-1\">" + STR_FORM_CATEGORY_ALL + "</option>");
for (i = 0; i < catnames.length; i++) {
document.write("<option value=\"" + i + "\"");

if (i == cat)
document.write(" selected=\"selected\"");
document.writeln(">" + catnames[i] + "</option>");
}
document.writeln("</select>&nbsp;&nbsp;");
}
document.writeln(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("</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 se introdujo ninguna palabra.<br />");

if (ZoomInfo == 1)
document.writeln("<center><p><small>" + STR_POWEREDBY + " <a href=\"http://www.novafantasia.com/mamoa/\" target=\"_blank\"><b>A Mámoa de Dumbria</b></a></small></p></center>");
return;
}

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


if (ToLowerSearchWords == 1)
query = query.toLowerCase();

// prepare search query, strip quotes, trim whitespace
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, " ");

// trim trailing/leading whitespace
query = query.replace(/^\s*|\s*$/g,"");

// substitute multiple whitespace chars to single character
query = query.replace(/\s+/g, " ");

// split search phrase into words
searchWords = query.split(" "); // split by spaces.

document.write("<div class=\"searchheading\">" + STR_RESULTS_FOR + " \"" + query + "\"");
if (UseCats) {
if (cat == -1)
document.writeln(" " + STR_RESULTS_IN_ALL_CATEGORIES);
else
document.writeln(" " + STR_RESULTS_IN_CATEGORY + " \"" + catnames[cat] + "\"");
}
document.writeln("</div><br />");

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

numwords = searchWords.length;
kw_ptr = 0;
outputline = 0;
usewildcards = 0;
ipage = 0;
matches = 0;
var SWord;
pagesCount = urls.length;

// 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;
}

if (skipwords) {
for (sw = 0; sw < numwords; sw++) {
// 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 (SkippedWords > 0)
document.writeln("<i>" + STR_SKIPPED_FOLLOWING_WORDS + " " + SkippedOutputStr + ".</i><br /><br />");


// Begin searching...
for (sw = 0; sw < numwords; sw++) {

if (searchWords[sw] == "")
continue;

if (searchWords[sw].indexOf("*") == -1 && searchWords[sw].indexOf("?") == -1) {
UseWildCards = 0;
} else {
UseWildCards = 1;
searchWords[sw] = pattern2regexp(searchWords[sw]);
if (SearchAsSubstring == 0)
pattern = "^" + searchWords[sw] + "$";
else
pattern = searchWords[sw];

re = new RegExp(pattern, "g");
}

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

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

if (UseWildCards == 0) {
if (SearchAsSubstring == 0)
//match_result = data[0].search("^" + SWord + "$");
if (data[0] == searchWords[sw])
match_result = 0;
else
match_result = -1;
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 (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)
res_table[ipage][2] += 1;

}
if (UseWildCards == 0 && SearchAsSubstring == 0)
break;// this search word was found, so skip to next

}
}

}

// Count number of output lines that match ALL search terms
oline = 0;
fullmatches = 0;
ResFiltered = false;
output = new Array();
var full_numwords = numwords - SkippedWords;
for (i = 0; i < pagesCount; i++) {
IsFiltered = false;
if (res_table[i][0] != 0) {
if (UseCats && cat != -1) {
// using cats and not doing an "all cats" search
if (catpages[i] != cat) {
IsFiltered = true;
}
}
if (IsFiltered == false) {
if (res_table[i][2] >= full_numwords) {
fullmatches++;
} else {
if (andq == 1)
IsFiltered = true;
}
}
if (IsFiltered == false) {
// copy if not filtered out
output[oline] = new Array(3);
output[oline][0] = i;
output[oline][1] = res_table[i][0];
output[oline][2] = res_table[i][1];
oline++;
} else {
ResFiltered = true;
}
}
}
if (ResFiltered == true)
matches = output.length;

// Sort results in order of score, use "SortCompare" function
if (matches > 1)
 	{
 		if (sort == 1 && UseDateTime == 1)
 			output.sort(SortByDate);	// sort by date
 		else
	output.sort(SortCompare);	// sort by relevance
}


//Display search result information
document.writeln("<div class=\"summary\">");
if (matches == 0)
document.writeln(STR_SUMMARY_NO_RESULTS_FOUND + "<br />");
else if (numwords > 1 && andq == 0) {
//OR
SomeTermMatches = matches - fullmatches;
document.writeln(PrintNumResults(fullmatches) + " " + STR_SUMMARY_FOUND_CONTAINING_ALL_TERMS + " ");
if (SomeTermMatches > 0)
document.writeln(PrintNumResults(SomeTermMatches) + " " + STR_SUMMARY_FOUND_CONTAINING_SOME_TERMS);
document.writeln("<br />");
}
else if (numwords > 1 && andq == 1) //AND
document.writeln(PrintNumResults(fullmatches) + " " + STR_SUMMARY_FOUND_CONTAINING_ALL_TERMS + "<br />");
else
document.writeln(PrintNumResults(matches) + " " + STR_SUMMARY_FOUND + "<br />");

document.writeln("</div>\n");

// number of pages of results
num_pages = Math.ceil(matches / per_page);
if (num_pages > 1)
document.writeln("<br />" + num_pages + " " + STR_PAGES_OF_RESULTS + "<br />\n");

// Show sorting options
if (matches > 1)
{
	if (UseDateTime == 1)
	{
		document.writeln("<div class=\"sorting\">");
		if (sort == 1)
				document.writeln("<a href=\"" + SelfURL + "?zoom_query=" + query + "&zoom_page=" + page + "&zoom_per_page=" + per_page + "&zoom_cat=" + cat + "&zoom_and=" + andq + "&zoom_sort=0\">" + STR_SORTBY_RELEVANCE + "</a> / <b>" + STR_SORTEDBY_DATE + "</b>");
			else
				document.writeln("<b>" + STR_SORTEDBY_RELEVANCE + "</b> / <a href=\"" + SelfURL + "?zoom_query=" + query + "&zoom_page=" + page + "&zoom_per_page=" + per_page + "&zoom_cat=" + cat + "&zoom_and=" + andq + "&zoom_sort=1\">" + STR_SORTBY_DATE + "</a>");
			document.writeln("</div>");
	}	
}

// determine current line of result from the output array
if (page == 1) {
arrayline = 0;
} else {
arrayline = ((page - 1) * per_page);
}

// the last result to show on this page
result_limit = arrayline + per_page;

// display the results
while (arrayline < matches && arrayline < result_limit) {
ipage = output[arrayline][0];
score = output[arrayline][1];

document.writeln("<p></p>\n");

document.writeln("<div class=\"result_title\">");
if (DisplayNumber == 1)
	document.writeln("<b>" + (arrayline+1) + ".</b>&nbsp;");
	
if (DisplayTitle == 1)
	document.writeln("<a href=\"" + urls[ipage] + "\"" + target + ">" + titles[ipage] + "</a>");
else
	document.writeln("<a href=\"" + urls[ipage] + "\"" + target + ">" + urls[ipage] + "</a>");
 
if (UseCats) {
	catindex = catpages[ipage];
document.writeln("<span class=\"category\">[" + catnames[catindex] + "]</span>");
}
document.writeln("</div>");

if (DisplayMetaDesc == 1)
{
document.writeln("<div class=\"description\">");
if (Highlighting == 1)
document.writeln(HighlightDescription(descriptions[ipage]));
else
document.writeln(descriptions[ipage]);
document.writeln("<b>...</b></div>\n");
}

info_str = "";

if (DisplayTerms == 1)
	info_str += STR_RESULT_TERMS_MATCHED + " " + output[arrayline][2];
	
if (DisplayScore == 1) {
	if (info_str.length > 0)
		info_str += "&nbsp; - &nbsp;";
	info_str += STR_RESULT_SCORE + " " + score;
}

if (DisplayDate == 1) {
	if (info_str.length > 0)
		info_str += "&nbsp; - &nbsp;";
	info_str += datetime[ipage].getDate() + " " + months[datetime[ipage].getMonth()] + " " + datetime[ipage].getFullYear();
}
 
if (DisplayURL == 1) {
	if (info_str.length > 0)
		info_str += "&nbsp; - &nbsp;";
			info_str += STR_RESULT_URL + " " + urls[ipage];
}
 
document.writeln("<div class=\"infoline\">");
document.writeln(info_str);
document.writeln("</div>\n");
arrayline++;
}

// Show links to other result pages
if (num_pages > 1) {
// 10 results to the left of the current page
start_range = page - 10;
if (start_range < 1)
start_range = 1;

// 10 to the right
end_range = page + 10;
if (end_range > num_pages)
end_range = num_pages;

document.writeln("<p></p>" + STR_RESULT_PAGES + " ");
if (page > 1)
document.writeln("<a href=\"" + SelfURL + "?zoom_query=" + query + "&zoom_page=" + (page-1) + "&zoom_per_page=" + per_page + "&zoom_cat=" + cat + "&zoom_and=" + andq + "&zoom_sort=" + sort + "\">&lt;&lt; " + STR_RESULT_PAGES_PREVIOUS + "</a> ");

for (i = start_range; i <= end_range; i++) {
if (i == page) {
document.writeln(page + " ");
} else {
document.writeln("<a href=\"" + SelfURL + "?zoom_query=" + query + "&zoom_page=" + i + "&zoom_per_page=" + per_page + "&zoom_cat=" + cat + "&zoom_and=" + andq + "&zoom_sort=" + sort + "\">" + i + "</a> ");
}
}

if (page != num_pages)
document.writeln("<a href=\"" + SelfURL + "?zoom_query=" + query + "&zoom_page=" + (page+1) + "&zoom_per_page=" + per_page + "&zoom_cat=" + cat + "&zoom_and=" + andq + "&zoom_sort=" + sort + "\">" + STR_RESULT_PAGES_NEXT + " &gt;&gt;</a> ");
}

document.writeln("</div>"); // end results style tag

if (Timing == 1) {
timeEnd = new Date();
timeDifference = timeEnd - timeStart;
document.writeln("<br /><br /><small>" + STR_SEARCH_TOOK + " " + (timeDifference/1000) + " " + STR_SECONDS + ".</small>\n");
}

if (ZoomInfo == 1)
document.writeln("<center><p><small>" + STR_POWEREDBY + " <a href=\"http://www.novafantasia.com/mamoa/\" target=\"_blank\"><b>A Mamoa de Dumbria</b></a></small></p></center>");
}