CFLib.org – unIndent

unIndent(str)

Last updated March 7, 2009

author

Version: 0 | Requires: ColdFusion 5 | Library: StrLib

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Description:
Removes unnecessary leading tabs or spaces (whitespace chars) from each line of a string, preserving the formatting while flushing the string left. It is basically a block un-indent (like your IDE probably does with shift-tab).

Return Values:
returns a string

Example:

view plain print about

<pre>
<cfsavecontent variable="str">
    <tag>
        <child>
    </tag>
</cfsavecontent>
<cfoutput>#htmlCodeFormat(unIndent(str))#</cfoutput>
</pre>

<pre>
<cfsavecontent variable="str">
    <tag>
        <child>
    </tag>
</cfsavecontent>
<cfoutput>#htmlCodeFormat(unIndent(str))#</cfoutput>
</pre>

Parameters:

Name	Description	Required
str	String to be modified	Yes

Full UDF Source:

	
	
			
			
			
				
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				about
				ColdFISH is developed by Jason Delmore.  Source code and license information available at coldfish.riaforge.org.  Version 3.1.1
				
			<cfscript>
/**
 * Un-indents strings but preserves formatting
 * 
 * @param str 	 String to be modified (Required)
 * @return returns a string 
 * @author Nathan Strutz (&#115;&#116;&#114;&#117;&#116;&#122;&#64;&#103;&#109;&#97;&#105;&#108;&#46;&#99;&#111;&#109;) 
 * @version 0, March 7, 2009 
 */
function unIndent(str) {
	var lines = str.split("\n");
	var i = 0;
	var minSpaceDist = 9999;
	var newStr = "";

	for(i=1; i lte arrayLen(lines); i=i+1) {
		if (len(trim(lines[i]))) {
			minSpaceDist = max( min(minSpaceDist, reFind("[\S]",lines[i])-1), 0);
		}
	}

	for(i=1; i lte arrayLen(lines); i=i+1) {
		newStr = newStr & removeChars(lines[i], 1, minSpaceDist) & chr(10);
	}
	return newStr;
}
</cfscript>
		<cfscript>
/**
 * Un-indents strings but preserves formatting
 * 
 * @param str      String to be modified (Required)
 * @return returns a string 
 * @author Nathan Strutz (strutz@gmail.com) 
 * @version 0, March 7, 2009 
 */
function unIndent(str) {
    var lines = str.split("\n");
    var i = 0;
    var minSpaceDist = 9999;
    var newStr = "";

    for(i=1; i lte arrayLen(lines); i=i+1) {
        if (len(trim(lines[i]))) {
            minSpaceDist = max( min(minSpaceDist, reFind("[\S]",lines[i])-1), 0);
        }
    }

    for(i=1; i lte arrayLen(lines); i=i+1) {
        newStr = newStr & removeChars(lines[i], 1, minSpaceDist) & chr(10);
    }
    return newStr;
}
</cfscript>