/usr/bin/fvwm-convert-2.6 is in fvwm 1:2.6.5.ds-4.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# -*-perl-*-
# Convert .fvwm2rc from 2.4.x format to 2.6.x format.
#
# Original author: Thomas Adam <thomas.adam22@gmail.com> Dec. 2009
#
# This program 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.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
use strict;
use Cwd;
use File::Basename;
use Getopt::Long;
# Global array for all our converted lines.
my @converted_lines = ();
# Global softref for addtofunc continuations.
my $last_func_ref;
my %converted_funcs = ();
# Global for additional files...
my @additional_files = ();
# GetOpts
my $follow_read = '';
my $process_read = 0;
# Convert conditional command syntax correctly.
sub __convert_conditionals
{
my( $cond ) = @_;
my( $line ) = $cond->[-1];
my $condition_cmds =
qr/(all|current|direction|next|none|prev|pick|thiswindow|windowid)/;
# Take the last component. We no longer care for "[*]" as conditional
# command parameters. But we shouldn't really put another conditional
# in its place, so we'll just remove it.
$line =~ s/\[\*\]//;
# And convert over Next [$1] syntax.
$line =~ s/$condition_cmds\s*\[(.*?)\]/\($1\)/io;
$line = "$1 ". join( ', ', split( /[^,](\s+)[^,]/, $2 ) ) . " $3" if $line =~
/$condition_cmds\s*(\(.*?\))(.*)/io;
$cond->[-1] = $line;
}
# Process the files specified and output them to a destination file.
sub process_files
{
my( $files ) = @_;
no strict "refs";
foreach my $f ( @$files )
{
my( $s, $d ) = @$f;
my $cwd_path = getcwd();
warn "Following: Read $s...\n" if $process_read;
if( !defined $d or $d eq '' )
{
my $fbasename = basename( $s );
$d = "$cwd_path/$fbasename.converted";
}
if( -e $d ) {
die "Destination file: $d exists\n";
}
open( my $in_file, '<', $s ) or die
"Unable to open source file: $!\n";
while( <$in_file> )
{
chomp;
# We have to handle continuation lines here, such as:
#
# Style foo !Bar, !Baz, \
# NoSomethingElse
if( /\\\s*$/ )
{
$_ .= <$in_file>;
redo;
}
dispatch_line($_);
}
write_out_file($d);
@converted_lines = ();
%converted_funcs = ();
}
}
# Convert style syntax over where applicable.
sub convert_styles
{
my( $line ) = @_;
my @converted;
# At the very least, we can cheat and just negate everything. Whilst it
# isn't deprecated yet, it will be -- so it won't hurt to do it here.
# Split the line out first of all, between the "Style foo" part, and the
# actual styles being applied.
my( @style_parts ) = ($line =~ /^(style\s+\"??[\w+*?]\"??)(.*)$/i);
# Convert the second part over.
foreach( split( /\s*,\s*/, $style_parts[1] ) )
{
# There is no !PPosition style, but there is !UsePPosition
s/(?:No)(.*)/\!$1/ unless /nopposition/i;
s/nopposition/!UsePPosition/i;
push @converted, $_;
}
push @converted_lines, $style_parts[0] . join(', ',
@converted);
}
# Buckshot approach at turning fvwmthemes into colorsets. Can't really do
# much more than this, but at least gives the user something to go on.
sub convert_fvwmtheme
{
my( $line ) = @_;
$line =~ s/^\*fvwmtheme\s*:?//i;
$line = undef if $line =~ /modulesynchronous.*?fvwmtheme/i;
push @converted_lines, $line;
}
# Comment out the modulepath line -- grr.
sub handle_modulepath
{
my( $line ) = @_;
push( @converted_lines, "# Commented out by fvwm-convert-2.6: $line" );
}
# This should have happened in the fvwm-2.4 convert script, but handle it
# here anyway.
sub convert_windowshadesteps
{
my( $line ) = @_;
$line =~ /(\d+)p?/ ?
$line = "Style * WindowShadeSteps $1" :
$line = "Style * " . $line;
push( @converted_lines, $line );
}
sub convert_edge_resistance
{
my( $line ) = @_;
# This gets converted into two parts. One is the EdgeResistance
# command, the other is a style line.
#
# We could only ever have had two numbers as arguments to
# EdgeResistance.
my( $edge_res_arg, $move_res_arg ) =
( $line =~ /edgeresistance\s*(\d+)\s*(\d+)/i );
push( @converted_lines,
qq|
EdgeResistance $edge_res_arg
Style * EdgeMoveResistance $move_res_arg| );
}
sub convert_snapattraction
{
my( $line ) = @_;
push( @converted_lines, "Style * " . $line );
}
sub convert_key_mouse_bindings
{
my( $line ) = @_;
my @components = split( /(\s+)/, $line, 5 );
# Also, conditional commands should now be separated with commas and not
# whitespace, so try and fix these up where we can. It's not the
# intention we'll catch them all, but at least try and do so based on
# where they're likely to be used.
__convert_conditionals(\@components);
push( @converted_lines, join '', @components );
}
sub handle_continuation
{
no strict "refs"; # Yes, yes...
my( $line ) = @_;
if( !defined $last_func_ref || $last_func_ref eq '' )
{
my @func_parts = split( /(\+\s*\"?(?:i|c|d|h|m)\"?\s*)/i, $line, 2 );
__convert_conditionals(\@func_parts);
push( @converted_lines, join '', @func_parts );
return;
}
eval { &{$last_func_ref}($line) };
warn "$@\n" if $@;
}
sub handle_read_file
{
my( $line ) = @_;
my @read_parts = split( /\s+/, $line );
push( @converted_lines, $line );
# Crudely try and work out if the file is readable, and if it is add it
# to the list of further files to convert.
#
# This won't handle having to interpolate out any env vars set via
# SetEnv, or worse yet, outside of FVWM's environment. The user will
# just have to run this script on that file manually.
my $fname = $read_parts[1];
return unless defined $fname and $fname ne '';
if( -e $fname )
{
push( @additional_files, [$fname] );
# We're done.
return;
}
# If we have this:
#
# Read foo
#
# Or this:
#
# Read $./foo
#
# Then we assume FVWM_USERDIR ("$HOME/.fvwm/"), and if that file can't
# be found there, try CWD, and if that fails we just give up.
# Canonicalise the starting point by removing "$." -- we can guess what
# it ought to be replaced with.
$fname =~ s/^\$\.\/?//;
if( -e "$ENV{FVWM_USERDIR}/$fname" )
{
push( @additional_files,
["$ENV{FVWM_USERDIR}/$fname"] );
return;
}
if( -e "$ENV{HOME}/.fvwm/$fname" )
{
push( @additional_files,
["$ENV{HOME}/.fvwm/$fname"] );
return;
}
my $cwd_path = getcwd();
if( -e "$cwd_path/$fname" )
{
push( @additional_files, [$fname] );
return;
}
warn "Unable to follow: $line\n";
}
sub check_func_definition
{
my( $line ) = @_;
if( $line !~ /^addtofunc\s+(?:start|init|restart)function.*/i )
{
$last_func_ref = '';
}
# Then we have a standard function line in the form:
#
# + I SomeCommand
#
# Ensure we run it all through __convert_conditionals()
my @func_parts = split( /(\s+)/, $line, 4 );
__convert_conditionals( \@func_parts );
push( @converted_lines, join '', @func_parts );
}
sub convert_initfunc
{
my( $line ) = @_;
$last_func_ref = "convert_initfunc";
if( $line =~ /addtofunc\s+initfunction\s+\"??[icmhd]{1}\"??\s+.*/i ||
$line =~ /addtofunc\s+initfunction\s*/i )
{
$line =~ s/addtofunc\s+initfunction\s*//i;
}
$line =~ s/^\s*\+//;
return if !defined $line || $line eq '';
# What we need to do now is convert this from:
#
# + I Foo
#
# to:
#
# + I Test (Init) Foo
my @func_cmd = split( /\s+/, $line, 3 );
unshift( @func_cmd, '' ) unless @func_cmd > 2;
# Remove any quotes around the action type --- they're not needed
# anymore.
$func_cmd[1] =~ s/\"//g;
$func_cmd[1] .= q| Test (Init) |;
# Run the command through the conditional function to ensure we
# handle those correctly.
__convert_conditionals( \@func_cmd );
push( @{ $converted_funcs{initfunction} }, join ' ', @func_cmd );
}
sub convert_restartfunc
{
my( $line ) = @_;
$last_func_ref = "convert_restartfunc";
# We treat this exactly like startfunction.
if( $line =~ /addtofunc\s+restartfunction\s+\"??[icmhd]{1}\"??\s+.*/i )
{
# Split this string. We can throw away the "AddToFunc" part as this
# is irrelevant. But we want the following result:
# ( 'I', 'Some Command' )
$line =~ s/addtofunc\s+restartfunction\s*//i;
}
$line =~ s/addtofunc\s+restartfunction\s*//i;
return if $line eq '';
# Remove the continuation prefix as we can add this in when writing out
# the function definitions later.
$line =~ s/^\s*\+//;
my @func_cmd = split( /\s+/, $line, 2 );
$func_cmd[1] =~ s/\"//g;
# Run the command through the conditional function to ensure we
# handle those correctly.
__convert_conditionals( \@func_cmd );
push( @{ $converted_funcs{startfunction} }, join ' ', @func_cmd );
}
sub convert_startfunc
{
my( $line ) = @_;
$last_func_ref = "convert_startfunc";
# Now, it's possible that we have something like this:
#
# AddToFunc StartFunction I Some Command
#
# Extract the command part, add it to the hash for our functions, and
# flag the fact we're dealing with StartFunction at this point for any
# continuation lines (+ I Foo) since we can't determine the context of
# them without such a thing.
if( $line =~ /addtofunc\s+startfunction\s+\"??[icmhd]{1}\"??\s+.*/i )
{
# Split this string. We can throw away the "AddToFunc" part as this
# is irrelevant. But we want the following result:
# ( 'I', 'Some Command' )
$line =~ s/addtofunc\s+startfunction\s*//i;
}
$line =~ s/addtofunc\s+startfunction\s*//i;
# Remove the continuation prefix as we can add this in when writing out
# the function definitions later.
$line =~ s/^\s*\+//;
return if !defined $line || $line eq '';
my @func_cmd = split( /\s+/, $line, 2 );
$func_cmd[1] =~ s/\"//g;
# Run the command through the conditional function to ensure we
# handle those correctly.
__convert_conditionals( \@func_cmd );
push( @{ $converted_funcs{startfunction} }, join ' ', @func_cmd );
}
sub write_out_file
{
my( $dest_file ) = @_;
open( my $f, '>', $dest_file ) or
die "Couldn't open $dest_file: $!\n";
# If we had any continuation lines, preserve them as best we can.
@converted_lines = map {
join "\\\n", split /\\/, $_
} @converted_lines;
print $f join( "\n", @converted_lines );
# Write out the functions.
if( defined $converted_funcs{initfunction} or
defined $converted_funcs{startfunction} )
{
print $f qq|\n\nDestroyFunc StartFunction\nAddToFunc StartFunction\n|;
# Put the Init stuff before anything else.
for( @{ $converted_funcs{initfunction} },
@{ $converted_funcs{startfunction } } )
{
print $f "+ $_\n";
}
}
close( $f );
}
sub dispatch_line
{
my( $line ) = @_;
if( $line =~ /^style/i )
{
convert_styles($line);
} elsif( $line =~ /^\s*\*fvwmtheme:??/i ) {
convert_fvwmtheme($line);
} elsif( $line =~ /^\s*modulepath\s*/i ) {
handle_modulepath( $line );
} elsif( $line =~ /^\s*windowshadesteps.*/i ) {
convert_windowshadesteps($line);
} elsif( $line =~ /^\s*module(?:synchronous)?.*?fvwmtheme$/i ) {
convert_fvwmtheme($line);
} elsif( $line =~ /^\s*edgeresistance\s*\d+\s*\d+/i ) {
convert_edge_resistance($line);
} elsif( $line =~ /^\s*key|mouse/i ) {
convert_key_mouse_bindings($line);
} elsif( $line =~ /^\s*snap(?:attraction|grid)/i ) {
convert_snapattraction( $line );
} elsif( $line =~ /^\s*addtofunc\s+initfunction/i ) {
convert_initfunc( $line );
} elsif( $line =~ /^\s*addtofunc\s+startfunction.*/i ) {
convert_startfunc( $line );
} elsif( $line =~ /^\s*addtofunc\s+restartfunction/i ) {
convert_restartfunc( $line );
} elsif( $line =~ /^\s*addtofunc\s+\w+.*/i ) {
check_func_definition( $line );
} elsif( $line =~ /^\s*\+\s*\"??[ichmd]{1}\s*\"??\s+.*/i ) {
handle_continuation( $line );
} elsif( $line =~ /^\s*read\s*[\/\w]+/i ) {
handle_read_file( $line );
} else {
# Could be a comment, or a continuation, or simply something we
# don't need to convert. As far as continuation lines are
# concerned, these are kept in order just by pushing them onto the
# array --- but converting continuation lines is tricky since we'd
# need to determine the context of the continuation. I can't be
# bothered.
push( @converted_lines, $_ );
}
}
sub usage
{
print "fvwm-convert-2.6 [-f] [-h] source-file destination-file\n";
exit;
}
GetOptions(
"help|h" => \&usage,
"follow-read|f" => \$follow_read,
) || usage();
# But we still require @ARGV to be populated with our filenames.
usage() unless( @ARGV > 0 and @ARGV <=2 );
my @files = [@ARGV];
process_files( \@files );
if( @additional_files && !$follow_read )
{
print "The following files were detected, but not processed:\n\n",
join("\n", @$_ ) for @additional_files;
print "\n";
}
# Only do this is we've been asked.
if( @additional_files && $follow_read )
{
$process_read = 1;
process_files( \@additional_files );
}
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