'\"
'\" Generated from file 'cmdr_help\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2013-2016 Andreas Kupries
'\" Copyright (c) 2013-2016 Documentation, Andreas Kupries
'\"
.TH "cmdr::help" n 1\&.3\&.2 doc "Cmdr, a framework for command line parsing and dispatch"
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.SH NAME
cmdr::help \- Cmdr - (Internal) Utilities for help text formatting and setup
.SH SYNOPSIS
package require \fBcmdr::help \fR
.sp
\fB::cmdr::help\fR \fBauto\fR \fIactor\fR
.sp
.BE
.SH DESCRIPTION
.PP
Welcome to the Cmdr project, written by Andreas Kupries\&.
.PP
For availability please read \fICmdr - How To Get The Sources\fR\&.
.PP
This internal package implements the four standard help formats
.IP [1]
\fBfull\fR,
.IP [2]
\fBshort\fR,
.IP [3]
\fBlist\fR, and
.IP [4]
\fBby-category\fR\&.
.PP
.PP
It provides a single utility command used by the other parts of
the framework to add a \fBhelp\fR command to any
\fBcmdr::actor\fR requiring such\&.
.SH API
.TP
\fB::cmdr::help\fR \fBauto\fR \fIactor\fR
When invoked this command extends the \fIactor\fR with a \fBhelp\fR
command\&. The result of the command is the empty string\&.
.sp
The inserted command will accept all known format names as
options, enabling the user to choose the form of the help\&. By default
the format \fBby-category\fR will be used, except if a command name
was given to \fBhelp\fR, then the default will be \fBfull\fR\&.
.sp
An additional option accepted by \fBhelp\fR is
\fB--width\fR, giving the user control over the length of lines
in the help\&. By default help will be formatted to the width of the
terminal\&.
.RS
.TP
\fBcmdr::actor\fR \fIactor\fR
The \fBcmdr::actor\fR instance to be extended with \fBhelp\fR\&.
.RE
.PP
.SH "FORMAT NOTES"
The format \fBby-category\fR looks for and uses the block
\fB*category-order*\fR for when the user wishes to override the
natural (alphabetical) order of display for the toplevel sections\&.
.PP
This block has to be defined by the user, in the root of
the command hierarchy\&.
Its value has to be a dictionary mapping from the names of toplevel
sections/categories to an integer number\&. This is used to change
the order of displaying these sections in the generated text\&.
.PP
Sections with higher/larger numbers are shown first, and
lower/smaller numbers move towards the end\&. Negative numbers are
possible\&.
.PP
Sections not mentioned in the dictionary are assigned their
natural number\&. This is calculated by sorting all sections
alphabetically (\fB-dict\fR) ascending and assigning \fB0\fR
to the first section, \fB-10\fR to the next, and so on\&.
.PP
The generated section/category \fBMiscellaneous\fR is
given the number \fB-10000\fR to force it to the end (bottom)
of the help text, if it was generated\&.
.SH "BUGS, IDEAS, FEEDBACK"
Both the package(s) and this documentation will undoubtedly contain
bugs and other problems\&.
Please report such at
\fICmdr Tickets\fR [https:/core\&.tcl\&.tk/akupries/cmdr]\&.
.PP
Please also report any ideas you may have for enhancements of
either package(s) and/or documentation\&.
.SH KEYWORDS
arguments, command hierarchy, command line completion, command line handling, command tree, editing command line, help for command line, hierarchy of commands, interactive command shell, optional arguments, options, parameters, processing command line, tree of commands
.SH COPYRIGHT
.nf
Copyright (c) 2013-2016 Andreas Kupries
Copyright (c) 2013-2016 Documentation, Andreas Kupries

.fi