parser: Fix backquote support in here-document EOF mark
Upstream commit:
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu Mar 15 18:27:30 2018 +0800
parser: Fix backquote support in here-document EOF mark
Currently using backquotes in a here-document EOF mark is broken
because dash tries to do command substitution on it. This patch
fixes it by checking whether we're looking for an EOF mark during
tokenisation.
Reported-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
With added fix for quoted-ness of the EOF mark.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-heredoc/heredoc_backquote1.tests b/shell/ash_test/ash-heredoc/heredoc_backquote1.tests
new file mode 100755
index 0000000..ec3d8fe
--- /dev/null
+++ b/shell/ash_test/ash-heredoc/heredoc_backquote1.tests
@@ -0,0 +1,10 @@
+cat <<EO`true`F
+heredoc1
+EO`true`F
+echo Ok1:$?
+
+cat <<EO`true`F
+heredoc2
+EO`false`F
+EO`true`F
+echo Ok2:$?