search.js

sin波形信号发生起的程序 VHDL语言描述 QUartus

var initaction;
var OFFLINE = false;

function doSearch() {
	var form = document.forms[0];
    if (! form.search ) {
    	alert("Can't find the search box, I don't know what to search for.");
    } else {
		if (OFFLINE) {
        	window.location.href = "/content/search.php?query=" + escape(form.search.value);
        } else {
	        window.location.href = "http://search.doulos.com/doulos/search.nsf/searchresults?searchview&SearchOrder=1&count=10&SearchMax=0&query=" + escape(GoogleToNotes(form.search.value)) + "&Start=0";
        }
    }
}
function setAction() {
	var newAction = "javascript:doSearch();"
	var form = document.forms[0];
    if (form.action != newAction) {
		initaction = form.action;
    }
    form.action = newAction;
}

function unsetAction() {
	var form = document.forms[0];
    form.action = initaction;
}

//TRIM STRING PROTOTYPE
	String.prototype.trim = function(){
	  return( this.replace(/^\s*([\s\S]*\S+)\s*$|^\s*$/,'$1') );
	}


function GoogleToNotes(vQuery){
   //	var vQuery = document.forms[0].search.value;

	//PUT # IN FRONT AND AFTER QUOTES FOR SPLITTING
	var vStartString = (" " + vQuery).replace(/-\"/g,"#-\"");
	vStartString = vStartString.replace(/ \"/g," #\"");
	vStartString = vStartString.replace(/\" /g,"\"# ");

	//HANDLE + e.g. mike+golding  e.g. news +it
	vStartString = vStartString.replace(/ \+/g," ");
	vStartString = vStartString.replace(/\+/g," AND ");

	vStartString = vStartString.trim();
	//CHECK FOR FIRST CHARACTER BEING A #
	if(vStartString.substring(0,1) == "#"){
		var vStartString = vStartString.substring(1,vStartString.length);
	}

	//SPLIT ELEMENTS INTO AN ARRAY
    var array = vStartString.split("#");

	//REPLACE KEYWORDS NOT, AND, OR WHEN NOT IN A QUOTED STRING
	for(var i=0;i<array.length;i++){
    	var vElement = array[i].replace(/\$1/g,"").trim();
			if(vElement.indexOf("\"") < 0){

			//REPLACE - (minus) WITH NOT (CLOSED SPACES)
			vElement = (" " + vElement).replace(/ -/g," NOT");

			//CLOSE SPACES BETWEEN ORs SO ANDs ARE NOT PUT IN
			vElement = vElement.replace(/ OR /g,"OR");


			//REMOVE EXISTING ANDs for SPACES or ""
			vElement = vElement.replace(/ AND /g," ");
			vElement = vElement.replace(/ AND/g,"");
			vElement = vElement.replace(/AND /g,"");

			//REPLACE ALL SPACES FOR ANDs
			vElement = vElement.trim().replace(/ /g," AND ")

			//PUT NOTs BACK IN
			vElement = vElement.replace(/NOT/g," NOT ");
			//PUT ORs BACK IN
			vElement = vElement.replace(/OR/g," OR ");

		}else{
			//REPLACE ANY - AT START OF QUOTED STRING
			vElement = vElement.replace(/-\"/g,"NOT \"");
		}
		array[i] = vElement;
	}

	//JOIN ARRAY WITH ANDs
	var vNotesQuery = array.join(" AND ").trim();
	//REPLACE DOUBLE KEYWORDS ARFTER JOINING EVERYTHING WITH AND
    vNotesQuery = vNotesQuery.replace(/  /g, " ");
	vNotesQuery = vNotesQuery.replace(/ AND OR/g, " OR");
	vNotesQuery = vNotesQuery.replace(/ AND AND/g, " AND");

	//document.forms[0].result.value = vNotesQuery;
    return vNotesQuery;

	}