win32: case-sensitivity in tab completion

The tab-completion code treated all matches as case-insensitive
because that's how Microsoft Windows handles filenames.

This is now inadequate, as shell builtins, functions and aliases
are case sensitive.

Modify the treatment of case-sensitivity in tab completion:

- Track whether each potential match is case-insensitive (filename)
  or case-sensitive (shell builtin, function or alias).

- When comparing matches use a case-insensitive comparison if either
  value is a filename.  Otherwise use a case-sensitive comparison.

Adds 64 bytes.

1 files changed, 0 insertions, 12 deletions

diff --git a/libbb/bb_qsort.c b/libbb/bb_qsort.c
index 7afddf468..505045533 100644
--- a/libbb/bb_qsort.c
+++ b/libbb/bb_qsort.c
@@ -17,15 +17,3 @@ void FAST_FUNC qsort_string_vector(char **sv, unsigned count)
 {
         qsort(sv, count, sizeof(char*), bb_pstrcmp);
 }
-
-#if ENABLE_PLATFORM_MINGW32
-static int bb_pstrcasecmp(const void *a, const void *b)
-{
-        return strcasecmp(*(char**)a, *(char**)b);
-}
-
-void FAST_FUNC qsort_string_vector_case(char **sv, unsigned count)
-{
-        qsort(sv, count, sizeof(char*), bb_pstrcasecmp);
-}
-#endif