degesch: add partial matching /buffer goto

degesch.c

@@ -9821,10 +9821,26 @@ try_decode_buffer (struct app_context *ctx, const char *word)
 	struct buffer *buffer = NULL;
 	if (xstrtoul (&n, word, 10) && n <= INT_MAX)
 		buffer = buffer_at_index (ctx, n);
-	if (!buffer)
+	if (buffer || (buffer = buffer_by_name (ctx, word)))
-		buffer = buffer_by_name (ctx, word);
-	// TODO: partial matches
 		return buffer;
+
+	// Basic case insensitive partial matching -- at most one buffer can match
+	int n_matches = 0;
+	LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
+	{
+		char *string  = xstrdup (iter->name);
+		char *pattern = xstrdup_printf ("*%s*", word);
+		for (char *p = string;  *p; p++) *p = tolower_ascii (*p);
+		for (char *p = pattern; *p; p++) *p = tolower_ascii (*p);
+		if (!fnmatch (pattern, string, 0))
+		{
+			n_matches++;
+			buffer = iter;
+		}
+		free (string);
+		free (pattern);
+	}
+	return n_matches == 1 ? buffer : NULL;
 }
 
 static void
@@ -9860,6 +9876,21 @@ part_channel (struct server *s, const char *channel_name, const char *reason)
 		channel->left_manually = true;
 }
 
+static bool
+handle_buffer_goto (struct app_context *ctx, struct handler_args *a)
+{
+	if (!*a->arguments)
+		return false;
+
+	const char *which = cut_word (&a->arguments);
+	struct buffer *buffer = try_decode_buffer (ctx, which);
+	if (buffer)
+		buffer_activate (ctx, buffer);
+	else
+		log_global_error (ctx, "#s: #s", "No such buffer", which);
+	return true;
+}
+
 static void
 handle_buffer_close (struct app_context *ctx, struct handler_args *a)
 {
@@ -9922,6 +9953,8 @@ handle_command_buffer (struct handler_args *a)
 	}
 	else if (!strcasecmp_ascii (action, "move"))
 		result = handle_buffer_move (ctx, a);
+	else if (!strcasecmp_ascii (action, "goto"))
+		result = handle_buffer_goto (ctx, a);
 	else if (!strcasecmp_ascii (action, "close"))
 		handle_buffer_close (ctx, a);
 	else
@@ -10847,7 +10880,7 @@ g_command_handlers[] =
 	  "[<message>]",
 	  handle_command_quit,       0 },
 	{ "buffer",     "Manage buffers",
-	  "<N> | list | clear | move <N> | close [<N> | <name>]",
+	  "<N> | list | clear | move <N> | goto <N or name> | close [<N or name>]",
 	  handle_command_buffer,     0 },
 	{ "set",        "Manage configuration",
 	  "[<option>]",