MI: extract command completion logic from complete_command()

Extract completion logic from CLI complete_command() into a new
helper function complete().

gdb/Changelog:

	* completer.h (complete): New function.
	* completer.c (complete): Likewise.
	* cli/cli-cmds.c: (complete_command): Update to use new complete()
	function defined in completer.h.

1 files changed, 1 insertions, 28 deletions

diff --git a/gdb/cli/cli-cmds.c b/gdb/cli/cli-cmds.c
index 3d8e238..332078b 100644
--- a/gdb/cli/cli-cmds.c
+++ b/gdb/cli/cli-cmds.c
@@ -243,40 +243,13 @@ complete_command (const char *arg, int from_tty)
   if (arg == NULL)
     arg = "";
 
-  completion_tracker tracker_handle_brkchars;
-  completion_tracker tracker_handle_completions;
-  completion_tracker *tracker;
-
   int quote_char = '\0';
   const char *word;
 
-  try
-    {
-      word = completion_find_completion_word (tracker_handle_brkchars,
-					      arg, &quote_char);
-
-      /* Completers that provide a custom word point in the
-	 handle_brkchars phase also compute their completions then.
-	 Completers that leave the completion word handling to readline
-	 must be called twice.  */
-      if (tracker_handle_brkchars.use_custom_word_point ())
-	tracker = &tracker_handle_brkchars;
-      else
-	{
-	  complete_line (tracker_handle_completions, word, arg, strlen (arg));
-	  tracker = &tracker_handle_completions;
-	}
-    }
-  catch (const gdb_exception &ex)
-    {
-      return;
-    }
+  completion_result result = complete (arg, &word, &quote_char);
 
   std::string arg_prefix (arg, word - arg);
 
-  completion_result result
-    = tracker->build_completion_result (word, word - arg, strlen (arg));
-
   if (result.number_matches != 0)
     {
       if (result.number_matches == 1)