محرك بحث 5
<head>نسخ هذا الكود في
<script> <!-- hide this script from non-JavaScript browsers // All code in this script is Copyright(C) 1996, Justin Boyan, jab+j@cs.cmu.edu // For documentation and more info, see: http://www.cs.cmu.edu/~jab/snark/ // This is SNARK Version 1.0, 18 May 1996 var MAX_ENGINES = 30; var SNARK_STRING = "hunting+the+snark"; function MakeArray(n) { for (var i = 1; i <= n; i++) { this[i] = 0; } this.maxlen = n; this.len = 0; return this; } var engs = new MakeArray(MAX_ENGINES); function find_substring(needle, haystack) { var i, needlen = needle.length, haylen = haystack.length; for (i=0; i<=haylen-needlen; i++) { if (needle == haystack.substring(i,i+needlen)) return i; } return false; } function Engine(name, opts, home, search) { var snark = find_substring(SNARK_STRING, search); this.name = name; this.opts = opts; this.home = home; this.pre_snark = search.substring(0,snark); this.post_snark= search.substring(snark+SNARK_STRING.length, search.length); } function Add(name, opts, home, search) { engs.len++; if (engs.len <= engs.maxlen) { engs[engs.len] = new Engine(name, opts, home, search) } else { alert("Better increase MAX_ENGINES: " + engs.len + ">" + engs.maxlen) } } // ADD YOUR OWN SEARCH ENGINES BELOW. (See http://www.cs.cmu.edu/~jab/snark/ ) Add("Netnews: AltaVista", "", "http://altavista.digital.com/", "http://altavista.digital.com/cgi-bin/query?pg=q&what=news&fmt=d&q=hunting+the+snark" ); Add("Shareware/Windows", "", "http://vsl.cnet.com/", "http://vsl.cnet.com/cgi-bin/vsl-master/Find?category=MS-Windows%28all%29&search=hunting+the+snark&logop=and&and=&orfile=++&hits=200" ); Add("Shareware/Unix", "", "http://vsl.cnet.com/", "http://vsl.cnet.com/cgi-bin/vsl-master/Find?category=UNIX&search=hunting+the+snark&logop=and&and=&orfile=++&hits=200" ); Add("the Web: AltaVista", "SELECTED", "http://altavista.digital.com/", "http://altavista.digital.com/cgi-bin/query?pg=q&what=web&fmt=d&q=hunting+the+snark" ); Add("the Web: Lycos", "", "http://www.lycos.com/", "http://twelve.srv.lycos.com/cgi-bin/pursuit?query=hunting+the+snark" ); Add("the Web: Yahoo!", "", "http://www.yahoo.com/", "http://search.yahoo.com/bin/search?p=hunting+the+snark" ); Add("Weather (City, ST)", "", "http://www.nnic.noaa.gov/cgi-bin/page?pg=netcast", "http://www.nnic.noaa.gov/cgi-bin/netcast.do-it?state=hunting+the+snark&area=Local+Forecast&html=yes&match=strong"); // ADD YOUR OWN SEARCH ENGINES ABOVE. (See http://www.cs.cmu.edu/~jab/snark/ ) function HandleForm(form) { form.submit(); // This fixes a mysterious Netscape bug. Without this line, // you can't use <enter> to start the search the first time. var i, oldq=form.query.value, newq=""; for (i=0; i<oldq.length; i++) { // compress [ ]+ into \+ var thischar = oldq.charAt(i); if (thischar != ' ') newq += thischar; else if (lastchar != ' ') newq += '+'; lastchar = thischar; } var eng = engs[1+form.service.selectedIndex]; location.href = newq ? eng.pre_snark + newq + eng.post_snark : eng.home; } function DisplayForm() { document.writeln('<CENTER><FORM OnSubmit="HandleForm(this); return false">'); document.writeln('Search <SELECT name="service">'); for (i=1; i <= engs.len; i++) { document.writeln("<OPTION " + engs[i].opts + "> " + engs[i].name); } document.writeln('</SELECT> for <INPUT size=26 name="query">'); document.writeln('<input type=submit value=" GO!">'); document.writeln('</FORM> </CENTER>'); } DisplayForm(); // done hiding from old browsers --> </script>