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#!/usr/bin/perl -w
# genrpbindings -- generate ratpoison bindings for various languages
#
# Ryan Yeske <rcyeske@sfu.ca>
# Tue Dec 4 16:15:53 PST 2001
#
# currently generates bindings for:
# * Perl (Ratpoison.pm)
# * Emacs Lisp (ratpoison-cmd.el)
#
# add more languages!
#
# Bindings are just very thin wrappers, no argument checking is done.
# All of the functions return a string.
#
# Example: ratpoison --command='echo hello world'
#
# #!perl
# use Ratpoison;
# Ratpoison::echo ("hello world")
#
# ;;; elisp
# (require 'ratpoison-cmd)
# (ratpoison-echo "hello world")
$\="\n";
# set this to your rp binary
$RATPOISON="/usr/local/bin/ratpoison";
# open source file
$ACTIONS_C="../src/actions.c";
open ACTIONS_C or die "Can't open $ACTIONS_C";
# open target files
$PERL_FILE="./Ratpoison.pm";
$ELISP_FILE="./ratpoison-cmd.el";
open PERL, ">$PERL_FILE" or die "Can't create $PERL_FILE";
open ELISP, ">$ELISP_FILE" or die "Can't create $ELISP_FILE";
# PERL preamble
print PERL 'package Ratpoison;';
print PERL '$RATPOISON="',$RATPOISON,'";';
print PERL 'sub rp_cmd { return `$RATPOISON -c "@_"`; }';
# ELISP preamble
print ELISP '(defvar ratpoison-program "',$RATPOISON,'")';
print ELISP <<PREAMBLE;
(defmacro defun-ratpoison (cmd)
`(defun ,(intern (concat "ratpoison-" (symbol-name cmd))) (&rest args)
(apply 'ratpoison-cmd ,(symbol-name cmd) args)))
(defun ratpoison-cmd (cmd &rest args)
(with-temp-buffer
(call-process ratpoison-program nil (current-buffer) t
"-c" (format "%s %s"
cmd
(mapconcat (lambda (x)
(if (stringp x)
x
(prin1-to-string x)))
args " ")))
(buffer-substring (point-min) (if (> (point-max) 1)
(- (point-max) 1)
(point-max)))))
PREAMBLE
# bindings
while (<ACTIONS_C>) {
if (m!/\*\@begin !) {
while (<ACTIONS_C>)
{
last if (m!/\*\@end !);
if (/{\"(.+)\".+},/) {
$nbindings++;
print PERL "sub abort { return rp_cmd (\"$1\"); }";
print ELISP "(defun-ratpoison $1)";
}
}
}
}
print "$nbindings bindings.";
# PERL postamble
# ELISP postamble
print ELISP '(provide \'ratpoison-cmd)';
close PERL;
print "Created $PERL_FILE";
close ELISP;
print "Created $ELISP_FILE";
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