busybox/shell/ash_test/ash-vars/var_wordsplit_ifs1.tests
Denys Vlasenko 0aaaa50b45 ash: expand: Fixed "$@" expansion when EXP_FULL is false
Upstream commit:

    Date: Thu, 1 Jan 2015 07:53:10 +1100
    expand: Fixed "$@" expansion when EXP_FULL is false

    The commit 3c06acdac0b1ba0e0acdda513a57ee6e31385dce ([EXPAND]
    Split unquoted $@/$* correctly when IFS is set but empty) broke
    the case where $@ is in quotes and EXP_FULL is false.

    In that case we should still emit IFS as field splitting is not
    performed.

    Reported-by: Juergen Daubert <jue@jue.li>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-02 02:46:56 +02:00

43 lines
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Executable File

set -- abc "d e"
echo 'Testing: !IFS $*'
unset IFS; for a in $*; do echo ".$a."; done
echo 'Testing: !IFS $@'
unset IFS; for a in $@; do echo ".$a."; done
echo 'Testing: !IFS "$*"'
unset IFS; for a in "$*"; do echo ".$a."; done
echo 'Testing: !IFS "$@"'
unset IFS; for a in "$@"; do echo ".$a."; done
echo 'Testing: IFS="" $*'
IFS=""; for a in $*; do echo ".$a."; done
echo 'Testing: IFS="" $@'
IFS=""; for a in $@; do echo ".$a."; done
echo 'Testing: IFS="" "$*"'
IFS=""; for a in "$*"; do echo ".$a."; done
echo 'Testing: IFS="" "$@"'
IFS=""; for a in "$@"; do echo ".$a."; done
echo 'Testing: !IFS v=$*'
unset IFS; v=$*; echo "v='$v'"
echo 'Testing: !IFS v=$@'
unset IFS; v=$@; echo "v='$v'"
echo 'Testing: !IFS v="$*"'
unset IFS; v="$*"; echo "v='$v'"
echo 'Testing: !IFS v="$@"'
unset IFS; v="$@"; echo "v='$v'"
echo 'Testing: IFS="" v=$*'
IFS=""; v=$*; echo "v='$v'"
echo 'Testing: IFS="" v=$@'
IFS=""; v=$@; echo "v='$v'"
echo 'Testing: IFS="" v="$*"'
IFS=""; v="$*"; echo "v='$v'"
echo 'Testing: IFS="" v="$@"'
IFS=""; v="$@"; echo "v='$v'"
# Note: in IFS="" v=$@ and IFS="" v="$@" cases, bash produces "abc d e"
# We produce "abcd e"
echo Finished