Comments on: Regular Expressions, Reverend Jim Ignatowski and You

By: Christopher Vigliotti

Christopher Vigliotti — Fri, 03 Sep 2010 18:15:25 +0000

Hi Peter, sorry for the delay on approving your comments. Good point about leaving swapping out a-zA-Z with a-z in the code sample.

Just so I understand your second point (sorry about the WordPress issue), you are saying that I should replace the ‘questionmark’ with ‘questionmark backslash zero’?

Thanks for your input/suggestions.

By: Peter Boughton

Peter Boughton — Sat, 31 Jul 2010 00:26:17 +0000

Looks like the \\ 0 (backslash,zero) has been eaten by crappy WordPress.
The replace string should be “\\ 0?” (backslash,zero,questionmark) and the the “where is the match” should say “where \\ 0 is the match” – i.e. a single backslash followed by zero.
There should be no space between the backlash and the zero.

By: Peter Boughton

Peter Boughton — Sat, 31 Jul 2010 00:24:35 +0000

Looks like the \ (backslash,zero) has been eaten by the blog software.
The replace string should be “\?” (backslash,zero,questionmark) and the the “where is the match” should say “where \ is the match” – i.e. a single backslash followed by zero.

By: Peter Boughton

Peter Boughton — Sat, 31 Jul 2010 00:21:16 +0000

If you’re doing refindnocase you don’t need both A-Z and a-z in the class.

Also, another way of doing it is this (no need for the if):

variables.question = rereplaceNoCase(“[a-z0-9]$”, variables.question , “?” )

i.e. if the last char is alphanumeric, perform the replace, where is the match (so the last char), and the ? is appended after it.