[PATCH 0/1] MR8573: cmd: tab completion: Treat most delimiters as literals if user specified quotes.

[Joe Souza (＠JoeS209)]

Fix tab completion for commands like:
```
cd "[2025] Tax Documents"
```
while still allowing tab completion for commands like:
```
copy file1+file2 file3
```
to work.

Without this change, tab completion for cd "[2025] Tax Documents" yields cd "[2025][2025] Tax Documents".  Completed text is inserted into the incorrect location due to the closing ']' which was erroneously interpreted as a delimiter before this change.

[PATCH 1/1] cmd: tab completion: Treat most delimiters as literals if user specified quotes.

[Joe Souza]

From: Joe Souza

---
 programs/cmd/wcmdmain.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/programs/cmd/wcmdmain.c b/programs/cmd/wcmdmain.c
index fbec86a481a..31fa5e795b9 100644
--- a/programs/cmd/wcmdmain.c
+++ b/programs/cmd/wcmdmain.c
@@ -193,12 +193,25 @@ static void find_insert_pos(const WCHAR *inputBuffer, int len, SEARCH_CONTEXT *s
     /* Handle paths here.  Find last '\' or other delimiter.
      * If not found then insert pos is the same as search pos.
      */
-    while (cc > sc->search_pos && !wcschr(INTRA_PATH_DELIMS, inputBuffer[cc])) {
-        cc--;
-    }
+    if (sc->user_specified_quotes) {
+        /* If the user specified quotes then treat the usual delimiters as literals
+         * and ignore them.
+         */
+        while (cc > sc->search_pos && inputBuffer[cc] != L'\') {
+            cc--;
+        }
+
+        if (inputBuffer[cc] == L'"' || inputBuffer[cc] == L'\') {
+            cc++;
+        }
+    } else {
+        while (cc > sc->search_pos && !wcschr(INTRA_PATH_DELIMS, inputBuffer[cc])) {
+            cc--;
+        }

-    if (inputBuffer[cc] == L'"' || wcschr(INTRA_PATH_DELIMS, inputBuffer[cc])) {
-        cc++;
+        if (inputBuffer[cc] == L'"' || wcschr(INTRA_PATH_DELIMS, inputBuffer[cc])) {
+            cc++;
+        }
     }

sc->insert_pos = cc;