[PATCH] Fix 'Undefined command' error message

[Andrew STUBBS <andrew.stubbs@st.com>]

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Hi,

The following demonstrates the problem:

   (gdb) abc_def
   Undefined command: "abc".  Try "help".

Non-alphanumeric characters, such as underscore, are permitted in 
command names (including user defined commands), but are not understood 
when giving error messages.

The attached patch fixes the problem.

OK?

Andrew Stubbs

[-- Attachment #2: cli-decode.patch --]
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2005-11-15  Andrew Stubbs  <andrew.stubbs@st.com>

	* cli-decode.c (lookup_cmd): Allow all the same characters in
	command names that lookup_cmd_composition() does.

Index: src/gdb/cli/cli-decode.c
===================================================================
--- src.orig/gdb/cli/cli-decode.c	2005-05-26 21:49:02.000000000 +0100
+++ src/gdb/cli/cli-decode.c	2005-11-09 11:39:52.000000000 +0000
@@ -1196,7 +1196,12 @@ lookup_cmd (char **line, struct cmd_list
 	    {
 	      char *p = *line, *q;
 
-	      while (isalnum (*p) || *p == '-')
+	      while (*p && (isalnum (*p) || *p == '-' || *p == '_' ||
+#if defined(TUI)
+			    (tui_active &&
+			     (*p == '+' || *p == '<' || *p == '>' || *p == '$')) ||
+#endif
+			    (xdb_commands && (*p == '!' || *p == '/' || *p == '?'))))
 		p++;
 
 	      q = (char *) alloca (p - *line + 1);