cmd: Fix redirection handle parsing.

programs/cmd/tests/test_builtins.cmd

@@ -81,6 +81,12 @@ echo foo>foo
 type foo
 echo foo 1> foo
 type foo
+echo foo@tab@1> foo
+type foo
+echo foo 1>@tab@foo
+type foo
+echo foo@tab@1>@tab@foo
+type foo
 echo foo7 7> foo
 type foo
 echo foo9 9> foo
@@ -91,6 +97,9 @@ echo foo11> foo
 type foo
 echo foo12> foo
 type foo
+del foo
+echo1>foo
+type foo
 echo ...stdout appending
 echo foo>foo
 echo foo >>foo

programs/cmd/tests/test_builtins.cmd.exp

@@ -120,11 +120,14 @@ word
 ...stdout redirection
 foo
 foo@space@
-foo7@space@@or_broken@foo@space@
-foo9@space@@or_broken@foo@space@
-@todo_wine@foo1
-@todo_wine@foo11
-@todo_wine@foo12
+foo@tab@
+foo@space@
+foo@tab@
+foo7@space@@or_broken@foo@tab@
+foo9@space@@or_broken@foo@tab@
+foo1
+foo11
+foo12
 ...stdout appending
 foo
 foo@space@
@@ -133,12 +136,12 @@ foob@space@
 fooc@space@
 foob@space@
 fooc@space@
-@todo_wine@food1
-@todo_wine@foob@space@
-@todo_wine@fooc@space@
-@todo_wine@food1
-@todo_wine@food2
-@todo_wine@food21
+food1
+foob@space@
+fooc@space@
+food1
+food2
+food21
 @todo_wine@foo7@space@@space@@or_broken@not supported@space@
 @todo_wine@foo@or_broken@not supported
 @todo_wine@------------ Testing ^ escape character --------------
@@ -621,7 +624,7 @@ lulu
 file created in read-only dir
 ------------ Testing CALL --------------
 foo@space@
-@todo_wine@foo 8
+foo 8
 foo@space@@space@
 foo bar@space@
 @todo_wine@foo ""@space@

programs/cmd/wcmdmain.c

@@ -1944,10 +1944,11 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
                 }
 
                 /* See if 1>, 2> etc, in which case we have some patching up
-                   to do                                                     */
-                if (curPos != extraSpace &&
-                    *(curPos-1)>='1' && *(curPos-1)<='9') {
-
+                   to do (provided there's a preceding whitespace, and enough
+                   chars read so far) */
+                if (curStringLen > 2
+                        && (*(curPos-1)>='1') && (*(curPos-1)<='9')
+                        && ((*(curPos-2)==' ') || (*(curPos-2)=='\t'))) {
                     curStringLen--;
                     curString[curStringLen] = 0x00;
                     curCopyTo[(*curLen)++] = *(curPos-1);