On 10/11/10 22:59, Jilles Tjoelker wrote:
What I was thinking of was adding a lineno field to narg instead of to
all command types. The lineno variable would then be set by expand.c. I
think that leads to a smaller patch and it should still give a sensible
value for almost all errors.
Unfortunately, I do not believe this will work. In
echo $LINENO \
$LINENO
two identical numbers must be printed, because LINENO is supposed to be
set when a command is executed. It is not supposed to change during the
execution of the command. Taking the first word of a command also will
not work:
(
:
:
:
:
:
) >test-$LINENO
should write to file test-1, not test-7, even though the only word is on
line 7. bash gets this wrong, pdksh gets this almost right.
If I am missing an obvious way to address these issues, or if I am
missing some part of the standard that clarifies why these issues do not
exist, please share, but otherwise I will take the rest of your
suggestions and rework my first patch, storing the line number for each
command.
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