$ cat example3.mob             

# Meb example 3 - simple

&File
 &Load
 &Save
 &New
 -
 E&xit

&Help
 &About
 &Readme


$ mebtool example3.mob  

menu .m -tearoff 0
.m add cascade -label File -underline 0 -menu [menu .m.m0 -tearoff 0]
.m.m0 add command -label Load -underline 0 -command ::fileLoad
.m.m0 add command -label Save -underline 0 -command ::fileSave
.m.m0 add command -label New -underline 0 -command ::fileNew
.m.m0 add separator
.m.m0 add command -label Exit -underline 1 -command ::fileExit
.m add cascade -label Help -underline 0 -menu [menu .m.m1 -tearoff 0]
.m.m1 add command -label About -underline 0 -command ::helpAbout
.m.m1 add command -label Readme -underline 0 -command ::helpReadme

$ cat example1.mob                                                                                         

# Meb example 1

&Command        # Comments start at the first # on a line
 &Sing          # and continue to the end of the line
 &Dance
 &Jump          # These lines become commands
 -              # This is a separator
 &Shampoo       +menuoptions {-bg tan}  # Set menu (cascade) options with meb option
  &Lather       -value soapy            # The -value option makes this become a radiobutton
  R&inse        -command {puts rinse!}  # Leading { prevents namespace prefixing
  &Repeat
 =              # This is a separator
 E&xplode       # Commands become prefixed with a namespace

# Blank lines and comments are ignored
# Separators can be any combination of - and =
# Meb options are {n v} and start with +
# The default namespace is ::

&Radio          # These are good
 &Lettuce       -variable veg -command ::myns::hello    # Leading :: prevents namespace prefixing
 &Carrot        -variable veg
 &Radish        -variable veg           # These become radiobuttons
 &Potato        -variable veg           # because they share a common -variable
 =-=-=-=-=-=                            # This is a separator
 &Healthy       # These are better
  &Beer         -variable yum           # Submenus (cascades) are made by
  &Chips        -variable yum           # indenting one space from their parent
  Piz&za        -variable yum
  &Lard         -variable yum           # Variables become prefixed with a namespace

&Checkbutton
 &Extra Cheese  -variable cheese        # These become checkbuttons because they
 &No Singing    -variable sing          # are the only items to use a particular -variable
 &Other
  &Verbose      +type radiobutton -variable verbose     # Override type with meb option
  &Whisper      -variable whisper

$ mebtool -names -namespace myns -nomenu -menuname .z example1.mob

.z add cascade -label Command -underline 0 -menu [menu .z.mCommand -tearoff 0]
.z.mCommand add command -label Sing -underline 0 -command ::myns::commandSing
.z.mCommand add command -label Dance -underline 0 -command ::myns::commandDance
.z.mCommand add command -label Jump -underline 0 -command ::myns::commandJump
.z.mCommand add separator
.z.mCommand add cascade -label Shampoo -underline 0 -menu [menu .z.mCommand.mShampoo -bg tan -tearoff 0]
.z.mCommand.mShampoo add radiobutton -label Lather -underline 0 -value soapy
.z.mCommand.mShampoo add command -label Rinse -underline 1 -command {puts rinse!}
.z.mCommand.mShampoo add command -label Repeat -underline 0 -command ::myns::commandShampooRepeat
.z.mCommand add separator
.z.mCommand add command -label Explode -underline 1 -command ::myns::commandExplode
.z add cascade -label Radio -underline 0 -menu [menu .z.mRadio -tearoff 0]
.z.mRadio add radiobutton -label Lettuce -underline 0 -variable ::myns::veg -command ::myns::hello
.z.mRadio add radiobutton -label Carrot -underline 0 -variable ::myns::veg
.z.mRadio add radiobutton -label Radish -underline 0 -variable ::myns::veg
.z.mRadio add radiobutton -label Potato -underline 0 -variable ::myns::veg
.z.mRadio add separator
.z.mRadio add cascade -label Healthy -underline 0 -menu [menu .z.mRadio.mHealthy -tearoff 0]
.z.mRadio.mHealthy add radiobutton -label Beer -underline 0 -variable ::myns::yum
.z.mRadio.mHealthy add radiobutton -label Chips -underline 0 -variable ::myns::yum
.z.mRadio.mHealthy add radiobutton -label Pizza -underline 3 -variable ::myns::yum
.z.mRadio.mHealthy add radiobutton -label Lard -underline 0 -variable ::myns::yum
.z add cascade -label Checkbutton -underline 0 -menu [menu .z.mCheckbutton -tearoff 0]
.z.mCheckbutton add checkbutton -label {Extra Cheese} -underline 0 -variable ::myns::cheese
.z.mCheckbutton add checkbutton -label {No Singing} -underline 0 -variable ::myns::sing
.z.mCheckbutton add cascade -label Other -underline 0 -menu [menu .z.mCheckbutton.mOther -tearoff 0]
.z.mCheckbutton.mOther add radiobutton -label Verbose -underline 0 -variable ::myns::verbose
.z.mCheckbutton.mOther add checkbutton -label Whisper -underline 0 -variable ::myns::whisper