hush: tighten up "for" variable name check.

 Add TODOs.
 Disable redir4.right part where we differ from bash.
 It is not a bug per standards.
 Add a few tests, one is in hush-bugs section:
 and_or_and_backgrounding.right. It will likely bite users
 in real world usage.

5 files changed, 27 insertions, 11 deletions

diff --git a/shell/hush_test/hush-misc/for_with_bslashes.right b/shell/hush_test/hush-misc/for_with_bslashes.right
new file mode 100644
index 000000000..02d96692c
--- /dev/null
+++ b/shell/hush_test/hush-misc/for_with_bslashes.right
@@ -0,0 +1,8 @@
+a
+b\c
+b\\c
+b"c
+b'c
+b$c
+b`true`c
+Zero:0
diff --git a/shell/hush_test/hush-misc/for_with_bslashes.tests b/shell/hush_test/hush-misc/for_with_bslashes.tests
new file mode 100755
index 000000000..363f3d85b
--- /dev/null
+++ b/shell/hush_test/hush-misc/for_with_bslashes.tests
@@ -0,0 +1,10 @@
+# UNFIXED BUG.
+# commented-out words contain ^C character.
+# It's a SPECIAL_VAR_SYMBOL, for now hush does not escape it.
+# When it is fixed, update this test.
+
+for a in 'a' 'b\c' 'b\\c' 'b"c' "b'c" 'b$c' 'b`true`c' ### 'b#c'
+do
+    echo $a
+done
+echo Zero:$?
diff --git a/shell/hush_test/hush-misc/redir1.tests b/shell/hush_test/hush-misc/redir1.tests
index 70e9e17f0..ef2fbfb77 100755
--- a/shell/hush_test/hush-misc/redir1.tests
+++ b/shell/hush_test/hush-misc/redir1.tests
@@ -27,7 +27,7 @@ var=ok
 { var=bad >shell_test_$$; } &
 # cant use usleep as it isnt standard in $PATH --
 # we fail when testing busybox compiled solely as "hush"
-sleep 1
+wait
 echo "Test 4:  var:$var"
 test -f shell_test_$$ && echo "File created:ok"
 
diff --git a/shell/hush_test/hush-misc/redir4.right b/shell/hush_test/hush-misc/redir4.right
index ada6c2d85..ead25f603 100644
--- a/shell/hush_test/hush-misc/redir4.right
+++ b/shell/hush_test/hush-misc/redir4.right
@@ -10,16 +10,9 @@ Here3
 Ok3
 Here4
 Ok4
-How with variable refs
+Now with variable refs
 shell_test_1
 \shell_test_1
 \shell_test_1
 \shell_test_1
-Here1
-Ok1
-Here2
-Ok2
-Here3
-Ok3
-Here4
-Ok4
+Done
diff --git a/shell/hush_test/hush-misc/redir4.tests b/shell/hush_test/hush-misc/redir4.tests
index ac2a44166..c50b8cedf 100755
--- a/shell/hush_test/hush-misc/redir4.tests
+++ b/shell/hush_test/hush-misc/redir4.tests
@@ -38,7 +38,7 @@ Here4
 echo Ok4
 
 
-echo How with variable refs
+echo Now with variable refs
 i=1
 
 
@@ -58,6 +58,11 @@ rm *shell_test*
 echo *shell_test*
 rm *shell_test*
 
+echo Done;exit
+# UNFIXED BUG. bash apparently will expand $i even in terminating delimiter.
+# http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
+# does not mandate this behavior.
+# This is not likely to be used much in real-world.
 
 cat <<\shell_test_$i
 Here1