[TxMt] Parse entire project with regex

[Constantinos Neophytou ♎]

I have a question that I'm sure has a simple solution, and if my  
brain worked properly these days I'd be able to find it either online  
or somewhere in the archives... But I can't, so here goes...

I need to parse an entire project through a regex, and produce some  
formatted output. The regex is quite simple, and the reason is to  
create a 'translation' file. I have a huge project where I've used  
the wordpress-style convention (which in turn is based on the gettext  
style convention) of translating strings, namely passing them to the  
__() function (this is all in php). I'm not using gettext, i've just  
wrapped my own code around that function (which is why i'm using __()  
instead of _() )

This function at the moment simply returns the input as output (since  
all the text strings are in english, and I haven't really translated  
anything yet so my translation files are empty). What I want is to  
parse all of my code for /__\(['"](.*)['"]\)/ and some variations  
thereof, and produce a line-separated list of strings that need to be  
translated. I'd like to make this an automated process, because this  
is an ongoing project and i'd like to refresh the to-be-translated  
strings file frequently.

I believe poedit already does something like this, but attempting to  
get my head around .po and .mo files at this point just gave me a  
migraine (nb: if someone knows of a good, step-by-step 'for dummies'  
tutorial for this stuff, I'd appreciate it).

Any ideas?

Constantinos Neophytou
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