vim-patch:8.2.1588: cannot read back the prompt of a prompt buffer

Problem:    Cannot read back the prompt of a prompt buffer.
Solution:   Add prompt_getprompt(). (Ben Jackson, closes vim/vim#6851)
https://github.com/vim/vim/commit/077cc7aa0e0c431e97795612374fe17fe7c88803

Updated prompt_getprompt() doc to https://github.com/vim/vim/commit/cb80aa2d53e56d3aba3b3c439fb467f29a750c5e
and removed mention of method syntax usage (not supported by Nvim).

1 files changed, 12 insertions, 5 deletions

diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index f2fddc89fe..999cc74185 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -1604,13 +1604,20 @@ void edit_putchar(int c, bool highlight)
   }
 }
 
+/// Return the effective prompt for the specified buffer.
+char_u *buf_prompt_text(const buf_T *const buf)
+    FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
+{
+  if (buf->b_prompt_text == NULL) {
+    return (char_u *)"% ";
+  }
+  return buf->b_prompt_text;
+}
+
 // Return the effective prompt for the current buffer.
-char_u *prompt_text(void)
+char_u *prompt_text(void) FUNC_ATTR_WARN_UNUSED_RESULT
 {
-    if (curbuf->b_prompt_text == NULL) {
-      return (char_u *)"% ";
-    }
-    return curbuf->b_prompt_text;
+  return buf_prompt_text(curbuf);
 }
 
 // Prepare for prompt mode: Make sure the last line has the prompt text.