[Jython-users] Re: [Grinder-use] Regular expression problem

[<duv...@ya...>]

Dear,

A little update on the previous post.
First there was a typo. The second should match (instead of **NOT**).
The regular expression is now fixed with the following :
         regex = re.compile(r'(<!--(\s*\S+\s*)+-->)', re.I)
This work fine on all the sample I made but as soon as the regular expression is run against a
real life file : 150+ lines I get the following exception :
         RuntimeError: maximum recursion limit exceeded

Extremly annoying.
As my HTML page cannot be garantied to be XHTML compliant, I cannot use SAX to solve the parsing
problem (as explained in the O'Reilley Jython book, page 173). 

Is the only working solution, the implementaion of my own 'finder' on a line perline basis ?
Has anybody found smarter way to do this ... ?


\T,


--- duv...@ya... wrote:

> Dear,
> 
> I am confronted with the following problem in regular expression formulation.
> I basically want to match to non empty comment in HTML documents (grinder related matching).
> In an HTML file : 
>  1°. The following 4 should not match :
>      <!---->        (No character)  
>      <!-- -->       (one space)
>      <!-- 	
>             -->     (space + TAB + carriage-return + spaces)
>      <!-- 	--> (there is a space + a TAB)
>   2° This one should match
>      <!-- a --> 
> 
> 
> but I seem to have \S+ matching the character ASCII 32, as the example shows below ...
> 
> What do I do wrong ... ?
> 
> \T,
> 
> 
> 
> 
> 
> ------------ Sample ------------------------
> import re
> 
> regex = re.compile(r'[\s*\S+\s*]+', re.I)
> regexWithCharacterOnly = re.compile(r'\S+', re.I)
> 
> if __name__ == '__main__' :
> 	txt = ' 	'                   # One 'space' followed by one TAB
> 	match = regex.search(txt)
> 	if (match!=None):
> 		print 'Match found : [ %i, %i]\n first character idx : %i --> "%s"' % (match.pos,
> match.endpos,
> ord(txt[match.pos]), txt)
> 
> 	match = regexWithCharacterOnly.search(txt)
> 	if (match!=None):
> 		print 'Match found : [ %i, %i], first character idx : %i --> "%s"' % (match.pos, match.endpos,
> ord(txt[match.pos]), txt)		
> 	else:
> 		print 'No match found against "\\S+"'
> 
> Any fool can write code that a computer can understand. 
> Good programmers write code that humans can understand.
>                                                    Martin Fowler 
> T. : +32 (0)2 742 05 94
> M. : +32 (0)497 44 68 12
> 
> 
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Any fool can write code that a computer can understand. 
Good programmers write code that humans can understand.
                                                   Martin Fowler 
T. : +32 (0)2 742 05 94
M. : +32 (0)497 44 68 12