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Full Discussion: Sub menu's
Top Forums UNIX for Dummies Questions & Answers Sub menu's Post 13590 by Jimbo on Sunday 20th of January 2002 10:29:34 AM
Old 01-20-2002
My demo menu does have sub-menus, but they are not full-blown working sub-menus, hence the "Directory Functions menu processing goes here" display. At time of post, I was just wanting to demo how a sub-menu would be called from a main loop, not what the sub-menu would need to do.

Your main case statement should not try to process the replies from the sub-menus. That case statement, on a single execution, will process only a single response, and that will be a main menu response.

Each sub-menu, after painting the screen, needs to do its own read/case processing, then fall out the bottom or do a return. Follow your script and you will see that it is executing as coded: main loop calls Filefunctions, which paints the screen, calls PressEnter (no read has been done yet), then falls back to the main loop which starts the next main menu cycle.

You could code the main loop in such a way that its read/case processing would handle the responses from all main/sub menus. But this would not be a typical approach, and not as easy to maintain as the more modular approach.

Also, Deletedirectory and Changedirectory have if-statements that are not closed out.
Jimbo
 

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LEARN ABOUT DEBIAN

install-menu

install-menu(1) 					      Debian GNU/Linux manual						   install-menu(1)

NAME

       install-menu - Process a menu method and generate the menu files for a window manager or a menu-aware application.

DESCRIPTION

       update-menus(1) computes the list of menu entries and passes it in turn to the menu methods in /etc/menu-methods/. The task of a menu meth-
       ods is to generate menus for a specific window manager.	install-menu provides a generic and customizable way to do that. The documentation
       of the install-menu definition language is available in the Debian Menu manual, a local copy being available in /usr/share/doc/menu/html.

SYNOPSIS

       install-menu [-vh] [--remove] <menu-method>

       Read menu entries from stdin in update-menus --stdout format and generate menu files using the specified menu-method.

       Normally used in menu method scripts as #! /usr/bin/install-menu.

OPTIONS

       -h,--help
	      Show the help message and exit.

       --remove
	      Remove the menu files instead of generating them.

       -v,--verbose
	      Output messages about what the program is doing.

COPYING

       install-menu is distributed under the term of the GNU General Public License version 2, or (at your option) any later version.

AUTHOR

       Written by Joost Witteveen <joostje@debian.org>.  Now maintained by Bill Allombert <ballombe@debian.org>.

SEE ALSO

       update-menus(1), menufile(5), /usr/share/doc/menu/html

Debian Project							 28 November 2005						   install-menu(1)
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