diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2018-03-31 19:21:31 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2018-03-31 19:40:56 +0200 |
| commit | 220be537a03f029e1e619003d6f7def10103a156 (patch) | |
| tree | 73a8c8d1a19796c15db0dc7b238cf8bc644a4e46 /shell/ash_test/ash-heredoc | |
| parent | ad4e961352f04ba88019c4c2bb36c652ce9c51fa (diff) | |
| download | busybox-220be537a03f029e1e619003d6f7def10103a156.tar.gz | |
ash: use pgetc_eatbnl() in more places
Part of upstream commit:
Date: Thu Mar 8 08:37:11 2018 +0100
Author: Harald van Dijk <harald@gigawatt.nl>
parser: use pgetc_eatbnl() in more places
dash has a pgetc_eatbnl function in parser.c which skips any
backslash-newline combinations. It's not used everywhere it could be.
There is also some duplicated backslash-newline handling elsewhere in
parser.c. Replace most of the calls to pgetc() with calls to
pgetc_eatbnl() and remove the duplicated backslash-newline handling.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Not adding "readtoken1(pgetc_eatbnl(), DQSYNTAX..." changes, since
readtoken1() handles the "starts with backslash + newline" case itself.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash_test/ash-heredoc')
4 files changed, 146 insertions, 0 deletions
diff --git a/shell/ash_test/ash-heredoc/heredoc_backslash1.right b/shell/ash_test/ash-heredoc/heredoc_backslash1.right new file mode 100644 index 000000000..6a6114821 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_backslash1.right @@ -0,0 +1,43 @@ +Quoted heredoc: +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + +Unquoted heredoc: +a b +a\ + b + 123456 -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + 123456 v-$a-\t-\-\"-\x-`-\--\z-\*-\?- + 123456 v-$a-\t-\\-\"-\x-\`-\--\z-\*-\?- +cEOF2 + +Quoted -heredoc: +a\ +b +a\\ +b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- +-$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + +Unquoted -heredoc: +a b +a\ +b + 123456 -qwerty-\t-\-\"-\'-`-\--\z-\*-\?- +-qwerty-\t-\-\"-\'-`-\--\z-\*-\?- + 123456 v-$a-\t-\-\"-\x-`-\--\z-\*-\?- + 123456 v-$a-\t-\\-\"-\x-\`-\--\z-\*-\?- +cEOF4 + +Done: 0 diff --git a/shell/ash_test/ash-heredoc/heredoc_backslash1.tests b/shell/ash_test/ash-heredoc/heredoc_backslash1.tests new file mode 100755 index 000000000..501af5490 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_backslash1.tests @@ -0,0 +1,70 @@ +# Test for correct handling of backslashes. +# Note that some lines in each heredoc start with a tab. + +a=qwerty + +echo Quoted heredoc: +cat <<"EOF1" +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ +EOF1 +echo + +echo Unquoted heredoc: +cat <<EOF2 +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-') +c\ +EOF2 +EOF2 +echo + +echo Quoted -heredoc: +cat <<-"EOF3" +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\'-\`-\--\z-\*-\?-') +c\ + EOF3 +# In -heredoc case the marker is detected even if it is indented. +echo + +echo Unquoted -heredoc: +cat <<-EOF4 +a\ + b +a\\ + b + 123456 -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + -$a-\t-\\-\"-\'-\`-\--\z-\*-\?- + 123456 `echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-'` + 123456 $(echo v'-$a-\t-\\-\"-\x-\`-\--\z-\*-\?-') +c\ +EOF4 + EOF4 +# The marker is not detected if preceding line ends in backslash. +# TODO: marker should be detected even if it is split by line continuation: +# EOF\ +# 4 +# but currently hush doesn't do it. (Tab before "4" is not allowed, though.) +echo + +echo "Done: $?" diff --git a/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right new file mode 100644 index 000000000..fdb7ebd03 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right @@ -0,0 +1,8 @@ +heredoc0 +Ok0:0 +heredoc1 +Ok1:0 +heredoc2 +Ok2:0 +heredoc3 +Ok4:0 diff --git a/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests new file mode 100755 index 000000000..584edd0e4 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests @@ -0,0 +1,25 @@ +cat <\ +<\ +EOF +heredoc0 +EOF +echo Ok0:$? + +cat <<\ + EOF +heredoc1 +EOF +echo Ok1:$? + +cat <<\ +- EOF +heredoc2 + EOF +echo Ok2:$? + +cat <\ +<\ +- EOF +heredoc3 + EOF +echo Ok4:$? |