Robot: remove empty expression .{0} in parsers/robots.c to fix unit test tmain and units on FreeBSD #1866
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Thank you. I wondered who wrote the original line. Surprisingly, I wrote it. I should explain the background of the change in the commit log. However, "make units" on MacOSX on Travis says nothing wrong about your patch. I would like to merge your change. I have one request. Could you refer the above URLs (or commit ID) in your commit log? |
masatake
changed the title
Running unit tests tmain and units via 'make check' the empty expression
.{0} from the matching group in parsers/robot.c was causing FreeBSD libc
regcomp to produce an error: empty (sub)expression.
tmain would fail for some checks while units would fail for robots checks.
Removing the emptry expression .{0} "match anything exactly zero times"
fixes this issue and all expected tests pass for both tmain and units.
Testing the same change, removing the expression .{0} from the
matching group, on centos7 does not appear to have any regessions.
This reverts the following commit
universal-ctags@81a4593
That was created for the following issue:
universal-ctags#1571 (comment)
It's possible there's some regression for macOS however macOS on Travis
doesn't seem to have any issues.
derekschrock
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Thank you. |
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Removing empty expression .{0} fixes unit test on FreeBSD due to FreeBSD libc regcomp not liking the following (a|b|.{0}). Even though .{0} is valid removing it shouldn't create any issues.