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#! /usr/bin/perl
# This short script extracts enum definitions from files stolen
# from the Gimp's sources.
# Copyright (C) 2006 Henning Makholm
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
use strict ; use warnings ;
print "/* Autogenerated from ",@ARGV," */\n" ;
print "#include \"enums.h\"\n" ;
print "#include <stdio.h>\n" ;
while(<>) {
if( /^\s*typedef\s+enum\s/ ) {
my @nodesc ;
my @all ;
my %desc ;
my $enum ;
$_ = <> ;
/^\{\s*$/ or die "Expected opening brace" ;
while( <> ) {
if( s/^\s*,?(\w+)\s*(=\s*\d+)?,?\s*// ) {
my $constant = $1 ;
push @all, $constant ;
if( m' desc="([^"]+)"' ) {
$desc{$constant} = $1 ;
} else {
push @nodesc, $constant ;
$desc{$constant} = $constant ;
}
} elsif( /^\}\s*(\w+)\s*;/ ) {
$enum = $1 ;
last ;
} else {
die "Unparseable line [$_]" ;
}
}
die "Unexpected EOF" unless defined $enum ;
if( @nodesc ) {
my $prefix = $nodesc[0] ;
$prefix =~ s/.$// ;
for( @desc{@nodesc} ) {
while( substr($_,0,length $prefix) ne $prefix ) {
$prefix =~ s/.$// ;
}
}
$prefix = length $prefix ;
for( @desc{@nodesc} ) {
$_ = substr($_,$prefix);
$_ = "\u\L$_" ;
s/_(.)/\U$1/g ;
s/^Rle/RLE/;
}
my $suffix = substr($desc{$nodesc[0]},1) ;
for( @desc{@nodesc} ) {
while( substr($_,-length($suffix)) ne $suffix ) {
goto nosuffix if $suffix eq "" ;
$suffix =~ s/^.// ;
}
}
$suffix = length $suffix ;
$_ = substr($_,0,-$suffix) for @desc{@nodesc} ;
nosuffix: ;
}
my $buflen = 15 + length($enum);
print "const char*\nshow$enum($enum x)\n{\n" ;
print " static char buf[$buflen];\n switch(x) {\n" ;
for my $c (@all) {
print " case $c: return \"$desc{$c}\";\n" ;
}
print " default: sprintf(buf,\"($enum:%d)\",(int)x);\n" ;
print " return buf;\n }\n}\n";
}
}
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