[OS X TeX] Find and replace with regular expressions
Matthew Leingang
leingang at math.harvard.edu
Mon Nov 19 17:24:14 CET 2007
On Nov 19, 2007, at 8:39 AM, Eric Jablow wrote:
>
> On Nov 19, 2007, at 8:18 AM, Matthew Leingang wrote:
>
>> On Nov 19, 2007, at 7:20 AM, Alessandro Andretta wrote:
>>
>>> I would like to replace the $ signs in a LaTeX file with \( and \)
>>> thus I would have to search for $...$ and replace it with \( ... \)
>>> where ... is any string of symbols (letters, numbers, \ , {} &,etc)
>>> EXCEPT $. I tried the help menu of TeXShop, TextMate, Textwrangler,
>>> but their general treatment seems be a bit too technical for my
>>> taste.
>>> Is there a simple way to archive this with any of the editors above?
>>
>> Dear Alessandro,
>>
>> [snip]
>>
>> TeXShop has regular expression support built in. So you can open
>> up a find window,
>> put this in the search box
>>
>> \$([^$]+)\$
>>
>> and this in the replace box
>>
>> \\(\1\\)
>>
>> make sure you click "Regular Expressions," and go.
>
> This has some flaws. You need negative look-behind assertions in
> the search, because you don't want to pick up the \$ of
>
> Acme sells widgets for \$5.00 a unit. The cost to produce $x$
> widgets is $2x-0.03 x^2$ dollars.
Indeed, my original response pointed out that very flaw, and others.
But I wanted to give an answer which would probably work for a lot of
the document, and if he wanted to (learn enough to) tweak the regex
he could, or just find the rest manually, he'd still save a lot of work.
Is there any regex that's going to work 100% of the time?. How would
you fix the text
Acme sells widgets for \$5.00 a unit. The cost to produce $x$
widgets is $\$(2x-0.03 x^2)$.
--Matthew Leingang
--
Matthew Leingang
Preceptor in Mathematics
Harvard University
http://www.math.harvard.edu/~leingang/vCard.vcf
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