A RegEx match script which uses Hybrid Batch\JScript code

jgrep.bat

@set @junk=1 /*
@cscript //nologo //E:jscript %~f0 %*
@goto :eof */

var args=WScript.Arguments, argCnt=args.Length, stdin=WScript.StdIn, stdout=WScript.StdOut;
var replaceSingleQuotes=false, printMatchesOnly=false, matchString, flagString, regex, argDx=0;

if(argCnt==0) {
	throw new Error("You must provide search criteria.");
}

flagString=""
if(argCnt>1) {
	for(var bLoop=true; bLoop&&argDx<argCnt-1; argDx++) {
		switch(args(argDx)) {
		case '-t': replaceSingleQuotes=true; break;
		case '-o': printMatchesOnly=true; break;
		case '-g': flagString+="g"; break;
		case '-i': flagString+="i"; break;
		case '-m': flagString+="m"; break;
		default: bLoop=false; break;
		}
	}
}
if(replaceSingleQuotes) {
	matchString=args(argCnt-1).replace("'", '"');
} else {
	matchString=args(argCnt-1);
}

if(printMatchesOnly) {
	while(!stdin.AtEndOfStream) {
		var sLine=stdin.ReadLine();
		if(flagString.Length) regex=new RegExp(matchString, flagString);
		else regex=new RegExp(matchString);
		var m,matches=[],startDx=0;
		while((m=regex.exec(sLine.substr(startDx))) !== null) {
			stdout.WriteLine(m[0]);
			startDx+=m.lastIndex;
		}
	}
} else {
	if(flagString.Length) regex=new RegExp(matchString, flagString);
	else regex=new RegExp(matchString);
	while(!stdin.AtEndOfStream) {
		var sLine=stdin.ReadLine();
		if(regex.test(sLine)) {
			stdout.WriteLine(sLine);
		}
	}

}

I've fixed this script so that it can be called without the .bat extension. To do this in your own scripts replace cscript //nologo //E:jscript %0 %* with cscript //nologo //E:jscript %~f0 %*.

Hello krowe!!!

Please read my question on Super User about Find “mystring” in files and return only certain portion of matching lines.

Can your tool solve my issue ? Please explain how, in more detail.

Please reply asap!!!

Thanks