CFLib.org – FullLeft

FullLeft(str, count)

Last updated April 16, 2002

author

Version: 2 | Requires: ColdFusion 5 | Library: StrLib

Rated 20 time(s). Average Rating: 1.3

Description:
An enhanced version of left() that doesn't cut words off in the middle; instead, it searches backward until it finds a full word.

Return Values:
Returns a string.

Example:

<cfset text="You wouldn't see words chopped in half on the front page of the New York Times">

<cfoutput>
Full String: #text#<BR>
FullLeft(text, 25): #fullLeft(text, 25)#<BR>
FullLeft(text, 34): #fullLeft(text, 34)#<BR>
</cfoutput>

Parameters:

Name	Description	Required
str	String to be checked.	Yes
count	Number of characters from the left to return.	Yes

Full UDF Source:

	
	<cfscript>
/**
 * An enhanced version of left() that doesn't cut words off in the middle.
 * Minor edits by Rob Brooks-Bilson (rbils@amkor.com) and Raymond Camden (rbils@amkor.comray@camdenfamily.com)
 * 
 * Updates for version 2 include fixes where count was very short, and when count+1 was a space. Done by RCamden.
 * 
 * @param str      String to be checked. 
 * @param count      Number of characters from the left to return. 
 * @return Returns a string. 
 * @author Marc Esher (rbils@amkor.comray@camdenfamily.comjonnycattt@aol.com) 
 * @version 2, April 16, 2002 
 */
function fullLeft(str, count) {
    if (not refind("[[:space:]]", str) or (count gte len(str)))
        return Left(str, count);
    else if(reFind("[[:space:]]",mid(str,count+1,1))) {
          return left(str,count);
    } else { 
        if(count-refind("[[:space:]]", reverse(mid(str,1,count)))) return Left(str, (count-refind("[[:space:]]", reverse(mid(str,1,count))))); 
        else return(left(str,1));
    }
}
</cfscript>