contrib/tcsh_completion_build.sh

mercurial.el: fix error on hg-read-rev() with small tip, and cleanups

* Fix error if tip revision is smaller than hg-rev-completion-limit

  If tip revision is 10, "hg log -r -100:tip" fails.

* Remove dependencies on cl package at runtime

  Quote from GNU Emacs Lisp Reference Manual, Emacs Lisp Coding Conventions:
  > * Please don't require the `cl' package of Common Lisp extensions at
  >   run time.  Use of this package is optional, and it is not part of
  >   the standard Emacs namespace.  If your package loads `cl' at run
  >   time, that could cause name clashes for users who don't use that
  >   package.

* Check XEmacs at compile time

  Since byte-compiled file is not portable between GNU Emacs and
  XEmacs, checking type of emacs can be done at compile time.  This
  reduces byte-compiler warnings.

* Defvar variables binded dynamically and used across functions

* Combine status output string to state symbol alist into a variable,
  and use char instead of string for key of state alist

* Make hg-view-mode as minor-mode

* Define keymaps as conventions

#!/bin/sh

#
# tcsh_completion_build.sh - script to generate tcsh completion
#
#
# Copyright (C) 2005 TK Soh.
#
# This is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
#
# Description
# -----------
# This script generates a tcsh source file to support completion
# of Mercurial commands and options.
#
# Instruction:
# -----------
# Run this script to generate the tcsh source file, and source
# the file to add command completion support for Mercurial.
#
#    tcsh% tcsh_completion.sh FILE
#    tcsh% source FILE
#
# If FILE is not specified, tcsh_completion will be generated.
#
# Bugs:
# ----
# 1. command specific options are not supported
# 2. hg commands must be specified immediately after 'hg'.
#

tcsh_file=${1-tcsh_completion}

hg_commands=`hg --debug help | \
        sed -e '1,/^list of commands:/d' \
            -e '/^global options:/,$d' \
            -e '/^ [^ ]/!d; s/[,:]//g;' | \
        xargs -n5 | \
        sed -e '$!s/$/ \\\\/g; 2,$s/^ */    /g'`

hg_global_options=`hg -v help | \
        sed -e '1,/global/d;/^ *-/!d; s/ [^- ].*//' | \
        sed -e 's/ *$//; $!s/$/ \\\\/g; 2,$s/^ */    /g'`

hg_version=`hg version | sed -e '1q'`

script_name=`basename $0`

cat > $tcsh_file <<END
#
# tcsh completion for Mercurial
#
# This file has been auto-generated by $script_name for
# $hg_version
#
# Copyright (C) 2005 TK Soh.
#
# This is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#

complete hg \\
  'n/--cwd/d/' 'n/-R/d/' 'n/--repository/d/' \\
  'C/-/($hg_global_options)/' \\
  'p/1/($hg_commands)/'

END