Don't allow specifying an fd with a caret redirection

For example, an argument 12345^ is a real argument, not a redirection
There's no reason to use ^ here instead of >, and it's annoying to git
users.

Fixes #1873

1 files changed, 3 insertions, 2 deletions

diff --git a/src/tokenizer.cpp b/src/tokenizer.cpp
index 7357fd35..8e0bc590 100644
--- a/src/tokenizer.cpp
+++ b/src/tokenizer.cpp
@@ -383,10 +383,11 @@ static size_t read_redirection_or_fd_pipe(const wchar_t *buff,
             }
         }
     }
-
+    
     // Either way we should have ended on the redirection character itself like '>'.
+    // Don't allow an fd with a caret redirection - see #1873
     wchar_t redirect_char = buff[idx++];  // note increment of idx
-    if (redirect_char == L'>' || redirect_char == L'^') {
+    if (redirect_char == L'>' || (redirect_char == L'^' && idx == 1)) {
         redirection_mode = TOK_REDIRECT_OUT;
         if (buff[idx] == redirect_char) {
             // Doubled up like ^^ or >>. That means append.