keymap: Make replace_termcodes and friends accept length and cpo_flags

Reasons:
- One does not have to do `s[len] = NUL` to work with these functions if they do
  not need to replace the whole string: thus `s` may be const.
- One does not have to save/restore p_cpo to work with them.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/nvim/os/input.c b/src/nvim/os/input.c
index f317fd6b5a..e0826aa272 100644
--- a/src/nvim/os/input.c
+++ b/src/nvim/os/input.c
@@ -175,8 +175,9 @@ size_t input_enqueue(String keys)
   char *ptr = keys.data, *end = ptr + keys.size;
 
   while (rbuffer_space(input_buffer) >= 6 && ptr < end) {
-    uint8_t buf[6] = {0};
-    unsigned int new_size = trans_special((uint8_t **)&ptr, buf, true);
+    uint8_t buf[6] = { 0 };
+    unsigned int new_size = trans_special((const uint8_t **)&ptr, keys.size,
+                                          buf, true);
 
     if (new_size) {
       new_size = handle_mouse_event(&ptr, buf, new_size);