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Re: wrong lineno inside trap?
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From: |
Eric Blake |
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Subject: |
Re: wrong lineno inside trap? |
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Date: |
Fri, 09 Jan 2009 18:44:40 -0700 |
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User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.19) Gecko/20081209 Thunderbird/2.0.0.19 Mnenhy/0.7.5.666 |
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According to peter360 on 1/9/2009 6:07 PM:
> trap '
>
> echo this is line 3, but LINENO=$LINENO
>
> ' 0
>
> echo this is line 7, and LINENO=$LINENO
> Is this a known problem? Thanks.
In general, LINENO handling is inconsistent among shells. The presence of
single vs. multi-line constructs, eval, here-docs, and shell functions
cause different shells to give different values to LINENO. For more
documentation on this, see:
http://www.gnu.org/software/autoconf/manual/html_node/Special-Shell-Variables.html#Special-Shell-Variables
and this update to the documentation source, detailing even more
inconsistencies:
http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=10d26aa
- --
Don't work too hard, make some time for fun as well!
Eric Blake ebb9@byu.net
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