improve 'help' command

Rewrites 'help' command in C, using new 'cmd_help' for display.  Adds the
built-in 'help' COMMAND_HANDLER to provide better output than the
TCL-based script command (e.g. heirarchical listing of commands).

The help string is stored in the command structure, though it conitnues
to be pushed into the Jim environment.  The current idiomatic usage
suggests the addition of a usage field as well, to provide two levels
of detail for users to consume (i.e. terse usage list, or verbose help).

1 files changed, 0 insertions, 18 deletions

diff --git a/src/helper/startup.tcl b/src/helper/startup.tcl
index 30dc184f..ddfef1dc 100644
--- a/src/helper/startup.tcl
+++ b/src/helper/startup.tcl
@@ -58,24 +58,6 @@ proc cmd_help {cmdname h indent} {
 	}
 }
 
-#Print help text for a command. Word wrap
-#help text that is too wide inside column.
-proc help {args} {
-	global ocd_helptext
-	set cmd $args
-	foreach a [lsort $ocd_helptext] {
-		if {[string length $cmd] == 0 || \
-			[string first $cmd $a] != -1 || \
-			[string first $cmd [lindex $a 1]] != -1} \
-		{
-			cmd_help [lindex $a 0] [lindex $a 1] 0
-		}
-	}
-}
-
-add_help_text help "Tcl implementation of help command"
-
-
 # If a fn is unknown to Tcl, we try to execute it as an OpenOCD command
 #
 # We also support two level commands. "flash banks" is translated to