Il giorno sab 14 ago 2021 alle ore 14:29 Harald van Dijk <[email protected]> ha scritto:
> > One case not covered in your tests is multi-line trap handlers. If > LINENO in a trap handler, whether ERR, EXIT, or anything else, is > supposed to refer to the point where it activated, then I think it > should do so all throughout the trap handler. Correct me if I am > misreading your patches, but I think that is not what you are doing, I > think you only start counting at the point where it activated. Is that > correct? If so, is that the behaviour you are after? > I developed another patch to fix a problem arised by multi-line trap handlers. They are not common and IMHO useless because functions could be used in traps. They are a corner case but I agree that they are worth a thought. The $LINENO could be evaluated at the trap definition, like this trap "echo lineno: $LINENO" ERR Or the $LINENO could be evaluated when the trap's exception arises, like this: trap 'echo lineno: $LINENO' ERR Double or single quotes make such a difference. In both cases the $LINENO should remain constant during the trap life. This patch grants what above. The test5.sh shows it. Thank you, -- Roberto A. Foglietta +39.349.33.30.697
busybox-1.33.1-5of5-multiline-trap-LINENO-bugfix.patch
Description: Binary data
testsuite.tgz
Description: application/compressed
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