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authorHerbert Xu <herbert@gondor.apana.org.au>2020-04-28 01:15:26 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2020-05-15 16:24:37 +1000
commita256b373624d3c6c6f38bce03b58cc38fab7e1e2 (patch)
treeadcdd386cc7870f920a0cd6b48d6a6e976da0190 /src/bltin
parentjobs: Fix infinite loop in waitproc (diff)
downloaddash-a256b373624d3c6c6f38bce03b58cc38fab7e1e2.tar.gz
dash-a256b373624d3c6c6f38bce03b58cc38fab7e1e2.zip
parser: Fix handling of empty aliases
Dash was incorrectly handling empty aliases. When attempting to use an
empty alias with nothing else, I'm (incorrectly) prompted for more
input:

```
$ alias empty=''
$ empty
>
```

Other shells (e.g., bash, yash) correctly handle the lone, empty alias as an
empty command:

```
$ alias empty=''
$ empty
$
```

The problem here is that we incorrectly enter the loop eating TNLs
in readtoken().  This patch fixes it by setting checkkwd correctly.

Reported-by: Michael Greenberg <michael.greenberg@pomona.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'src/bltin')
0 files changed, 0 insertions, 0 deletions