HI,
I was having situation where I wanted to read a file and process each line.
I think cffile tag is not much to do it, so I use java classes.
Basically we need two kinds of classes.
1. InputSream
2. Buffer reader

Buffer reader is capable to read any input stream line by line.

Final code will look like:

<cfscript>
	FileName = expandPath('/temp.txt');
	objFileReader = createObject("java","java.io.FileReader");
	InputStreamReader = objFileReader.init(FileName);
	objBuffer = createObject("java","java.io.BufferedReader" );
	LineIO = objBuffer.init(InputStreamReader);
	</cfscript>
	
	<cfset eof = 0>
	<cfset cnt = 1>
	<cfloop condition="not eof">
	<cfset currline = LineIO.readline()>
	<cfif isdefined("currline") eq "no">
	<cfset eof = 1>
	<cfbreak>
	</cfif>
	<cfoutput>line #cnt#: #currline#<br/></cfoutput>
	<cfset cnt = cnt + 1>
	<cfflush>
	</cfloop>

Currently working on project for well non credit card company where they have online registration form. They really want user enter enter strong password for their account and criteria for password listed below..

1. Password must length between 8 to 18.
2. Password must contain atleast one alpha and on numeric.
3. Password must have one special characters from @,#,$.
4. Password can not have repeative alpha and numeric.

This is really complex but can be done with four different conditions easily (right?) but I decided to make things more complex and check all four condition with single regular expression. After spending time on this finally figure out regular expression can perform all four condition.

Recently working with paypal standard checkout and it so easy to integrate with any application as it will redirect to paypal site and customer login and make all kind of payment stuff at paypal site only. But this task make really tuff for new customer who has limited knowledge of intenernet/paypal.

How this works? Well, paypal has very good documentation here. Basic flow is.

1. Customer click on "Paypal" button which redirect to paypal site.
2. Customer need to login or enter credit card information.
3. Paypal ask for confirmation of payment.
4. Thanks page for placing order with link to return original site.