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#
# Copyright (C) 2012-2021 Alexis Bienvenüe <paamc@passoire.fr>
#
# This file is part of Auto-Multiple-Choice
#
# Auto-Multiple-Choice 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.
#
# Auto-Multiple-Choice 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 Auto-Multiple-Choice. If not, see
# <http://www.gnu.org/licenses/>.
use warnings;
use 5.012;
package AMC::Filter::latex;
use AMC::Basic;
use AMC::Filter;
use Cwd;
use File::Spec::Functions
qw/splitpath catpath splitdir catdir catfile rel2abs tmpdir/;
use File::Copy;
use Text::ParseWords;
our @ISA = ("AMC::Filter");
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
bless( $self, $class );
return $self;
}
sub pre_filter {
my ( $self, $input_file ) = @_;
# first of all, look in the source file header if there are some
# AMC options
$self->{options} = {};
open( INPUT, $input_file );
LINE: while (<INPUT>) {
if (/^[%]{2}AMC:\s*([a-zA-Z0-9_-]+)\s*=\s*(.*)/) {
$self->{options}->{$1} = $2;
}
last LINE if ( !/^%/ );
}
close(INPUT);
print STDERR "Options : " . join( ' ', keys %{ $self->{options} } ) . "\n";
# pass some of these options to AMC project configuration
$self->set_project_option( 'moteur_latex_b',
$self->{options}->{latex_engine} )
if ( $self->{options}->{latex_engine} );
$self->set_filter_result( 'jobspecific', 1 )
if ( $self->{options}->{jobspecific} );
$self->set_filter_result( 'unchanged', 1 )
if ( !$self->{options}->{preprocess_command} );
}
sub filter {
my ( $self, $input_file, $output_file ) = @_;
# exec preprocess command if needed
if ( $self->{options}->{preprocess_command} ) {
# copy the file, unchanged
copy( $input_file, $output_file );
# exec preprocess command, that may modify this file
my ( $fxa, $fxb, $f ) = splitpath($output_file);
my @cmd =
quotewords( '\s+', 0, $self->{options}->{preprocess_command} );
push @cmd, $f;
my $cwd = getcwd;
chdir( catpath( $fxa, $fxb, '' ) );
debug_and_stderr "Working directory: " . getcwd;
debug_and_stderr "Calling preprocess command: " . join( ' ', @cmd );
$ENV{AMC_JOBNAME} = $self->{jobname};
if ( system_debug( cmd => [@cmd] ) != 0 ) {
debug_and_stderr("Preprocess command call failed!");
}
chdir($cwd);
}
}
1;
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