Dynamic text color

[Dave McCormick]

John Posner wrote:
> On Fri, 08 Jan 2010 14:28:57 -0500, MRAB <python at mrabarnett.plus.com> 
> wrote:
>
>> The regex r'\bgreenList_regexp\b' will match the string
>> 'greenList_regexp' if it's a whole word.
>>
>> What you mean is "any of these words, provided that they're whole
>> words". You'll need to group the alternatives within "(?:...)", like
>> this:
>>
>>      r'\b(?:' + greenList_regexp + ')\b'
>
> Oops, MRAB, you forgot to make the last literal a RAW string -- it 
> should be r')\b'
>
> Dave, we're already into some pretty heavy regular-expression work, 
> huh?. Here's another approach -- not nearly as elegant as MRAB's:
>
> Given this list:
>
>   greenList = ['green', 'grass', 'grump']
>
> ... you currently are using join() to construct this regexp search 
> string:
>
>   'green|grass|grump'
>
> ... but you've decided that you really want this similar regexp search 
> string:
>
>   r'\bgreen\b|\bgrass\b|\bgrump\b'
>
> You can achieve this by transforming each item on the list, then 
> invoking join() on the transformed list to create the search string. 
> Here are a couple of ways to transform the list:
>
> * List comprehension:
>
>   whole_word_greenList = [ r'\b' + word + r'\b' for word in greenList]
>
> * map() and a user-defined function:
>
>   def xform_to_wholeword_searchstring(word):
>       return r'\b' + word + r'\b'
>
>   whole_word_greenList = map(xform_to_wholeword_searchstring, greenList)
>
>
> HTH,
> John
John,
That second "r" appears to do the trick.

Yea, pretty heavy into it.  I read someplace that regular-expressions 
were tricky,  but I did not expect this :)

Now to start working this into the rest of my app and study your second 
approach.

Thanks again for the help!!!
Dave