debugging regexes

[Roedy Green]

I wonder what techniques people use for debugging regexes.

Some tools I thought would be useful

1. proofreader to help get \ quoting right.
http://mindprod.com/project/regexproofreader.html

2. composer http://mindprod.com/project/regexcomposer.html

3. some sort of tool when you don't get a match to give you the index
of the rightmost char that DID match.

4. a framework when you give your patterns and test strings and it
tells you which match and which don't. Perhaps it could prune
strings/patterns to find the best match.

 

[Roedy Green]

4. a framework when you give your patterns and test strings and it
tells you which match and which don't. Perhaps it could prune
strings/patterns to find the best match.

see http://mindprod.com/project/regexdebugger.html

 

[voorth]

seehttp://mindprod.com/project/regexdebugger.html

I was pleasantly surprised by this Eclipse plugin:
http://brosinski.com/regex/

Does anyone know of comparable plugins for other IDE's ?

--Henk

 

[Lord Zoltar]

I wonder what techniques people use for debugging regexes.

Some tools I thought would be useful

1. proofreader to help get \ quoting right.http://mindprod.com/project/regexproofreader.html

2. composerhttp://mindprod.com/project/regexcomposer.html

3. some sort of tool when you don't get a match to give you the index
of the rightmost char that DID match.

4. a framework when you give your patterns and test strings and it
tells you which match and which don't.  Perhaps it could prune
strings/patterns to find the best match.

Personally, I prefer Expresso: http://www.ultrapico.com/Expresso.htm
It's a Windows-only app though. I do remember that KDE also shipped
with a regex tool, of similar capabilities. I don't know what's out
there for OS X, but I'm sure there's something out there.

 

[GK]

Try this one: http://www.bastian-bergerhoff.com/eclipse/features/web/QuickREx/toc.html