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authorDenys Vlasenko <vda.linux@googlemail.com>2018-03-31 19:21:31 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2018-03-31 19:40:56 +0200
commit220be537a03f029e1e619003d6f7def10103a156 (patch)
tree73a8c8d1a19796c15db0dc7b238cf8bc644a4e46 /shell/ash_test
parentad4e961352f04ba88019c4c2bb36c652ce9c51fa (diff)
downloadbusybox-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')
-rw-r--r--shell/ash_test/ash-heredoc/heredoc_backslash1.right43
-rwxr-xr-xshell/ash_test/ash-heredoc/heredoc_backslash1.tests70
-rw-r--r--shell/ash_test/ash-heredoc/heredoc_bkslash_newline1.right8
-rwxr-xr-xshell/ash_test/ash-heredoc/heredoc_bkslash_newline1.tests25
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:$?