Ok. I know there were no comments. I removed them to make you think (yes,
that's why...).
what happens is that ColdFusion evaluates the string. Say that the string
is:
"Our product is #1 in 25% of the selected demographic"
..if the line were not there, after processing it would be evaluated as
"Our product is #1 in #25-25#% of the selected demographic"
..which would cause a coldfusion parsing error
so, what this line does is effectively escape the existing hashes, so the
string becomes:
"Our product is ##1 in #25-25#% of the selected demographic"
..which evaluates as
"Our product is #1 in 0% of the selected demographic"
which unfortunately can be true at times...
-------------------------------------
SO, with comments
<cfscript>
.......
// escape any hashes in the existing string
str_text = replace(str_text, "##", "####", "all");
// replace any percentage values with coldfusion code to
// subtract 25% from existing values
str_text = ReReplace(str_text, "([0-9]*)%","##\1-25##%","all");
// evaluate coldfusion code
result = evaluate(DE(str_text));
</cfscript>
I hope that clears things up
Joel
(The old-hatter cookie cleaver)
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]
Behalf Of Matthew
Sent: Thursday, 14 December 2006 1:55 PM
To: cfaussie
Subject: [cfaussie] Re: Regular expressions - backreference as a number
Someone is a very cleaver cookie!!!
Although what is this line for?: str_text = replace(str_text, "##",
"####", "all");
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