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authorHerbert Xu <herbert@gondor.apana.org.au>2014-09-28 18:40:18 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2014-09-28 18:40:18 +0800
commit4f7e4c8201e580b9d31c09d8a484741072033c01 (patch)
tree2ec700c405904ae054398ec76ebe1819ef49b898 /src/TOUR
parentRelease 0.5.8. (diff)
downloaddash-4f7e4c8201e580b9d31c09d8a484741072033c01.tar.gz
dash-4f7e4c8201e580b9d31c09d8a484741072033c01.zip
[BUILTIN] Correctly handle test ! ! = !
This patch adds a special case in testcmd for the 4-argument
expression beginning with a !.  Without this ! ! = ! is deemed
a syntax error, which breaks POSIX.

Note that this special case does not extend down into subexpressions
so if ! ! = ! is used inside parentheses then a syntax error will
still occur as before.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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