Re: Escaping text for the regular expression compiler

On Thu, 02 Nov 2006 06:30:22 +0100, Berend de Boer <[email protected]>  
wrote:

>>>>>> "Paul" == Paul Bates [ES] <Paul> writes:
>
>     Paul> Does Gobo contain a function for escaping a STRING so it may
>     Paul> be passed as part of a complete expression, without being an
>     Paul> expression itself, to the regex parser?
>
> Not aware of one. You should be able to do that with a regexp, but I
> wouldn't be able to give you a complete regexp to do so.
>
> But perhaps you can google for a regexp to escape a possible regepx
> and submit code or email a link so we can put that in Gobo? Sounds  
> useful.

In general, escaping is a needed functionality for many applications  
(specially in web based applications to prevent code injection). Escaping  
must be used any time we generate code for an other language. There should  
be escaping functionality for things like:

- Regexp
- HTML / XML
- SQL (including different dialects like for MySQL)
- JavaScript
- C
- Eiffel

and perhaps for Python, Bash, .bat, ...

You are right that this all could be done using regular expressions, I  
just want to suggest that any solution should try to be a little more  
general that just escaping for regexps.

Bernd


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