[src/trunk]: src/usr.bin/make/unit-tests Add a test for backslash-newline at ...

[apb <apb%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/00aa9e627c5c
branches:  trunk
changeset: 332160:00aa9e627c5c
user:      apb <apb%NetBSD.org@localhost>
date:      Tue Sep 09 10:22:27 2014 +0000

description:
Add a test for backslash-newline at the very end of a command script.

diffstat:

 usr.bin/make/unit-tests/escape.exp |   4 ++++
 usr.bin/make/unit-tests/escape.mk  |  13 ++++++++++++-
 2 files changed, 16 insertions(+), 1 deletions(-)

diffs (41 lines):

diff -r 460fbeecfb31 -r 00aa9e627c5c usr.bin/make/unit-tests/escape.exp
--- a/usr.bin/make/unit-tests/escape.exp        Tue Sep 09 10:11:20 2014 +0000
+++ b/usr.bin/make/unit-tests/escape.exp        Tue Sep 09 10:22:27 2014 +0000
@@ -71,6 +71,10 @@
        only one tab should be elided, second tab remains'
 :first line\
        only one tab should be elided, second tab remains
+cmd-1bsnl-eof
+echo :'command ending with backslash-newline'; \
+
+:command ending with backslash-newline
 cmd-2bsnl
 echo take one\\
 take one\
diff -r 460fbeecfb31 -r 00aa9e627c5c usr.bin/make/unit-tests/escape.mk
--- a/usr.bin/make/unit-tests/escape.mk Tue Sep 09 10:11:20 2014 +0000
+++ b/usr.bin/make/unit-tests/escape.mk Tue Sep 09 10:22:27 2014 +0000
@@ -1,4 +1,4 @@
-# $Id: escape.mk,v 1.9 2014/09/09 10:11:20 apb Exp $
+# $Id: escape.mk,v 1.10 2014/09/09 10:22:27 apb Exp $
 #
 # Test backslash escaping.
 
@@ -204,6 +204,17 @@
        echo :'first line\
                only one tab should be elided, second tab remains'
 
+# When backslash-newline appears at the end of a command script,
+# both the backslash and the newline should be passed to the shell.
+# The shell should elide the backslash-newline.
+#
+all: cmd-1bsnl-eof
+cmd-1bsnl-eof:
+       @echo ${.TARGET}
+       echo :'command ending with backslash-newline'; \
+
+# above line must be blank
+
 # Double-backslash-newline in a command.
 # Both backslashes are retained, but the newline is not escaped.
 # XXX: This may differ from POSIX, but matches gmake.