[syslinux] Some MENU directives are shown as "(null)" in CLI

[Ady]

> 
> > Op 22-2-2013 15:05, Matt Fleming schreef:
> > 
> > 
> > >> Config file available if needed/wanted.
> > >
> > > Sure, please send it along and I'll have a look at this bug.
> > >
> > 
> 
> This email is related to the issue described by Bernd.
> 
> In 5.xx, it seems as if the CLI is misinterpreting (or something 
> alike) some "MENU *" directives (I don't have the necessary knowledge 
> to express this issue more accurately or correctly, as I am not a 
> developer).
> 
> For example, in Bernd's ISOLINUX cfg, the last 4 of the "(null)" 
> shown in the CLI correspond to "MENU SEPARATOR" directives. The first 
> "(null)" corresponds to either "MENU BEGIN" or to its (submenu) "MENU 
> TITLE".
> 
 
Still happening with 5.02pre3.

 *** isolinux.cfg start ***
UI menu.c32
LABEL hello1
COM32 hello.c32
MENU SEPARATOR
LABEL hello2
COM32 hello.c32
 *** isolinux.cfg end ***

How to replicate:
Press ESC to show the boot prompt. In CLI, press TAB to list 
available labels. Between hello1 and hello2, "(null)" is listed. 
Comment out the above MENU SEPARATOR and "(null)" will not be 
displayed. Other "menu *" directives can cause the same effect.

Additionally, using ISOLINUX 5.02pre3 -> menu.c32, the CONFIG 
directive doesn't work. Instead of loading the new cfg file, the same 
menu is displayed again. The same set of cfg files works correctly 
regarding the CONFIG directive with 5.02pre1. (Note: this is 
off-topic regarding this specific email thread.)

TIA,
Ady.