Fix Savannah bug # 1332: handle backslash-newline pairs in command scripts

according to POSIX rules.

2 files changed, 262 insertions, 0 deletions

diff --git a/tests/ChangeLog b/tests/ChangeLog
index 143bc2f..c07d7c1 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,5 +1,10 @@
 2005-06-25  Paul D. Smith  <psmith@gnu.org>
 
+	* scripts/misc/general3: Implement comprehensive testing of
+	backslash-newline behavior in command scripts: various types of
+	quoting, fast path / slow path, etc.
+	Tests fix for Savannah bug #1332.
+
 	* scripts/options/symlinks: Test symlinks to non-existent files.
 	Tests fix for Savannah bug #13280.
 
diff --git a/tests/scripts/misc/general3 b/tests/scripts/misc/general3
index 40b7ed9..b3142c2 100644
--- a/tests/scripts/misc/general3
+++ b/tests/scripts/misc/general3
@@ -53,4 +53,261 @@ all: ; @:
 ',
               '', 'true; true');
 
+# TEST 4
+
+# Check that backslashes in command scripts are handled according to POSIX.
+# Checks Savannah bug # 1332.
+
+# Test the fastpath / no quotes
+run_make_test('
+all:
+	@echo foo\
+bar
+	@echo foo\
+	bar
+	@echo foo\
+    bar
+	@echo foo\
+	    bar
+	@echo foo \
+bar
+	@echo foo \
+	bar
+	@echo foo \
+    bar
+	@echo foo \
+	    bar
+',
+              '', 'foobar
+foobar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar');
+
+# Test the fastpath / single quotes
+run_make_test("
+all:
+	\@echo 'foo\\
+bar'
+	\@echo 'foo\\
+	bar'
+	\@echo 'foo\\
+    bar'
+	\@echo 'foo\\
+	    bar'
+	\@echo 'foo \\
+bar'
+	\@echo 'foo \\
+	bar'
+	\@echo 'foo \\
+    bar'
+	\@echo 'foo \\
+	    bar'
+",
+              '', 'foo\
+bar
+foo\
+bar
+foo\
+    bar
+foo\
+    bar
+foo \
+bar
+foo \
+bar
+foo \
+    bar
+foo \
+    bar');
+
+# Test the fastpath / double quotes
+run_make_test('
+all:
+	@echo "foo\
+bar"
+	@echo "foo\
+	bar"
+	@echo "foo\
+    bar"
+	@echo "foo\
+	    bar"
+	@echo "foo \
+bar"
+	@echo "foo \
+	bar"
+	@echo "foo \
+    bar"
+	@echo "foo \
+	    bar"
+',
+              '', 'foobar
+foobar
+foo    bar
+foo    bar
+foo bar
+foo bar
+foo     bar
+foo     bar');
+
+# Test the slow path / no quotes
+run_make_test('
+all:
+	@echo hi; echo foo\
+bar
+	@echo hi; echo foo\
+	bar
+	@echo hi; echo foo\
+ bar
+	@echo hi; echo foo\
+	 bar
+	@echo hi; echo foo \
+bar
+	@echo hi; echo foo \
+	bar
+	@echo hi; echo foo \
+ bar
+	@echo hi; echo foo \
+	 bar
+',
+              '', 'hi
+foobar
+hi
+foobar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar');
+
+# Test the slow path / no quotes.  This time we put the slow path
+# determination _after_ the backslash-newline handling.
+run_make_test('
+all:
+	@echo foo\
+bar; echo hi
+	@echo foo\
+	bar; echo hi
+	@echo foo\
+ bar; echo hi
+	@echo foo\
+	 bar; echo hi
+	@echo foo \
+bar; echo hi
+	@echo foo \
+	bar; echo hi
+	@echo foo \
+ bar; echo hi
+	@echo foo \
+	 bar; echo hi
+',
+              '', 'foobar
+hi
+foobar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi');
+
+# Test the slow path / single quotes
+run_make_test("
+all:
+	\@echo hi; echo 'foo\\
+bar'
+	\@echo hi; echo 'foo\\
+	bar'
+	\@echo hi; echo 'foo\\
+    bar'
+	\@echo hi; echo 'foo\\
+	    bar'
+	\@echo hi; echo 'foo \\
+bar'
+	\@echo hi; echo 'foo \\
+	bar'
+	\@echo hi; echo 'foo \\
+    bar'
+	\@echo hi; echo 'foo \\
+	    bar'
+",
+              '', 'hi
+foo\
+bar
+hi
+foo\
+bar
+hi
+foo\
+    bar
+hi
+foo\
+    bar
+hi
+foo \
+bar
+hi
+foo \
+bar
+hi
+foo \
+    bar
+hi
+foo \
+    bar');
+
+# Test the slow path / double quotes
+run_make_test('
+all:
+	@echo hi; echo "foo\
+bar"
+	@echo hi; echo "foo\
+	bar"
+	@echo hi; echo "foo\
+    bar"
+	@echo hi; echo "foo\
+	    bar"
+	@echo hi; echo "foo \
+bar"
+	@echo hi; echo "foo \
+	bar"
+	@echo hi; echo "foo \
+    bar"
+	@echo hi; echo "foo \
+	    bar"
+',
+              '', 'hi
+foobar
+hi
+foobar
+hi
+foo    bar
+hi
+foo    bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo     bar
+hi
+foo     bar');
+
 1;