stringUtils.as

/*String Utility Component version 1.5

Mike Chambers

thanks to Branden Hall, Ben Glazer, Christian Cantrell, Nik Schramm
*/

/* This allows user to check from other include files whether or not the stringUtils library has been included.

Example:
if(!String.stringUtilsDefined) {
	trace("stringUtils.as not found");
}
*/

String.prototype.constructor.stringUtilsDefined = true;
String.prototype.constructor.stringUtilsVersion = 1.5;

/*** This methods trims all of the white space from the left side of a String.*/String.prototype.ltrim = function() {

var size = this.length;
	for(var i = 0; i <; size; i++) {  if(this.charCodeAt(i) > 32)
 	{
		return this.substring(i);  }
	}
	return "";
}

/*** This methods trims all of the white space from the right side of a String.*/String.prototype.rtrim = function(){
	var size = this.length;
	for(var i = size; i > 0; i-) { 
		if(this.charCodeAt(i) > 32)  {   
			return this.substring(0, i + 1); 
		} 
	}
	return "";
}

/*** This methods trims all of the white space from both sides of a String.*/
String.prototype.trim = function(){
	return this.rtrim().ltrim();
}

/*** This methods returns true if the String begins with the string passed into* the method. Otherwise, it returns false.*/
String.prototype.beginsWith = function(s) { 
	return (s == this.substring(0, s.length));
};

/*** This methods returns true if the String ends with the string passed into* the method. Otherwise, it returns false.*/
String.prototype.endsWith = function(s) { 
	return (s == this.substring(this.length - s.length));
};

 

String.prototype.remove = function(remove){ 
	return this.replace(remove, "");
}

String.prototype.replace = function(replace, replaceWith){ 
	sb = new String();
	found = false;
	for (var i = 0; i < this.length; i++) {
		if(this.charAt(i) == replace.charAt(0)) {
			found = true;
			for(var j = 0; j < replace.length; j++) {
				if(!(this.charAt(i + j) == replace.charAt(j))) {
					found = false;
					break;
				}
			}
			if(found) {
				sb += replaceWith;
				i = i + (replace.length - 1);
				continue;
			}  
		}
		sb += this.charAt(i); 
	}    
	return sb;
}