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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2013-08-23 20:04:12 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-08-23 20:04:12 +1000 |
| commit | a7c21a6f4cb42d967854cae954efd4ee66bdea9c (patch) | |
| tree | 3002943314ed39a93794b43aa9ac2e4fd7a7b343 /src/trap.c | |
| parent | [MAN] Fix typo for wait (diff) | |
| download | dash-a7c21a6f4cb42d967854cae954efd4ee66bdea9c.tar.gz dash-a7c21a6f4cb42d967854cae954efd4ee66bdea9c.zip | |
[EXPAND] Propagate EXP_QPAT in subevalvar
On Tue, Aug 28, 2012 at 01:27:24PM +0000, Todor Vlaev wrote:
>
> While playing around with parameter expansion I noticed that the
> following didn't work in dash (dash 0.5.5.1-7.4ubuntu1) as compared
> to bash even though I believe it should be POSIX-compliant:
>
> my_str=swan; last_char="${my_str#${my_str%?}}"; echo ${last_char}
>
> If the double quotes are removed, the last character is printed correctly.
>
> At a quick glance through the commits after the 0.5.5.1 release I saw
> the following bug fix. Could it be related?
>
> 0d7d66039b614b642c775432fd64aa8c11f9a64d
> [EXPAND] Fix quoted pattern patch breakage
We need to propagate EXP_QPAT in subevalvar as otherwise a nested
parameter expansion within subevalvar may be expanded incorrectly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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