Thomas Keller <m...@thomaskeller.biz> writes:
> Am 04.05.10 16:18, schrieb Stephen Leake:
>> I'm trying to get the rev_id of a merge, in a Lua test. Can anyone tell
>> me why this doesn't work? I based it on base_revision().
>>
>> function merged_revision()
>> local workrev = readfile("stderr")
>> local extract = string.gsub(workrev, "^mtn: %[merged%] (%x*)$", "%1")
>
> This will not work with multi-line string input, because ^ marks the
> very beginning and $ the very end of the string, not the line. But even
> if you remove these, you'll only process the replacement of the matched
> line, while you actually want to extract something. This should work better:
>
> local extract = string.match(workrev, "mtn: %[merged%] (%x*)")
That does work, and is clearer, but I don't understand the explanation.
Why does base_revision work?
Not a very important question, but it bothers me.
--
-- Stephe
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