From: Victor 'Zverok' Shepelev <vshepelev@...>
Date: 2008-03-03T08:06:56+09:00
Subject: Re: Patterns for error messages

>From: Stefano Crocco [mailto:stefano.crocco@alice.it]
>
>Alle Saturday 01 March 2008, Victor 'Zverok' Shepelev ha scritto:
>> Hello all.
>>
>> It seems that the question relates to interpreter "internals", but I'm
>> afraid of ask silly questions in ruby-core.
>>
>> The question is: why error messages of interpreter has inconsistent
>> addressing system of file and line?
>>
>> There are at many slightly different schemes (and all of them can be
>> present in the same error backtrace):
>>
>> path/file.rb:10: error text
>> path/file.rb:1:in `require': other-path/other-file.rb:31: error text
>> path/file.rb:7:in `method' error text
>>         ^	from path/file.rb:12
>>
>> And so on. I can't invent one regexp for my output-capturing text editor
>> (EditPlus on Windows) for catch all cases and automatically extract file
>> and path for navigate me to this path.
>>
>> Thanks for the answers.
>>
>> v.
>
>I can't find the differences. If you want a regexp which gives the name of
>the
>file, I think you can simply use something like:
>
>/^.*(?=:\d+:)/
>

For 4 of my cases it would find, respectively:
1. path/file.rb:10: - OK
2. path/file.rb:1: - when I wanted "the real error" address -
"other-path/other-file.rb:31:"
3. path/file.rb:7: - OK
4. nothing, because of there's no last ":" in the string with "^ from". Even
if you delete last ":" from regexp, the result will be unsatisfactory: " ^
from path/file.rb:12" (There would be even more spaces, but you understand
the idea)

It's a pain.

V.