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package LatexIndent::FileExtension;
# 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 3 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.
#
# See http://www.gnu.org/licenses/.
#
# Chris Hughes, 2017
#
# For all communication, please visit: https://github.com/cmhughes/latexindent.pl
use strict;
use warnings;
use utf8;
use PerlIO::encoding;
use open ':std', ':encoding(UTF-8)';
use File::Basename; # to get the filename and directory path
use Exporter qw/import/;
use LatexIndent::GetYamlSettings qw/%masterSettings/;
our @EXPORT_OK = qw/file_extension_check/;
sub file_extension_check{
my $self = shift;
# grab the filename
my $fileName = ${$self}{fileName};
# grab the file extension preferences
my %fileExtensionPreference= %{$masterSettings{fileExtensionPreference}};
# sort the file extensions by preference
my @fileExtensions = sort { $fileExtensionPreference{$a} <=> $fileExtensionPreference{$b} } keys(%fileExtensionPreference);
# get the base file name, allowing for different extensions (possibly no extension)
my ($dir, $name, $ext) = fileparse($fileName, @fileExtensions);
# check to make sure given file type is supported
if( -e $fileName and !$ext ){
my $message = "The file $fileName exists , but the extension does not correspond to any given in fileExtensionPreference; consinder updating fileExtensionPreference.";
$self->logger($message,'heading');
$self->output_logfile;
die($message);
}
# if no extension, search according to fileExtensionPreference
if (!$ext) {
$self->logger("File extension work:",'heading');
$self->logger("latexindent called to act upon $fileName with an, as yet, unrecognised file extension;");
$self->logger("searching for file with an extension in the following order (see fileExtensionPreference):");
$self->logger(join("\n",@fileExtensions));
my $fileFound = 0;
# loop through the known file extensions (see @fileExtensions)
foreach (@fileExtensions ){
if ( -e $fileName.$_ ) {
$self->logger("$fileName$_ found!");
$fileName .= $_;
$self->logger("Updated fileName to $fileName");
${$self}{fileName} = $fileName ;
$fileFound = 1;
$ext = $_;
last;
}
}
unless($fileFound){
$self->logger("I couldn't find a match for $fileName in fileExtensionPreference (see defaultSettings.yaml)");
foreach (@fileExtensions ){
$self->logger("I searched for $fileName$_");
}
$self->logger("but couldn't find any of them.");
$self->logger("Consider updating fileExtensionPreference. Error: Exiting, no indendation done.");
$self->output_logfile;
die "I couldn't find a match for $fileName in fileExtensionPreference.\nExiting, no indendation done.";
}
} else {
# if the file has a recognised extension, check that the file exists
unless( -e $fileName ){
my $message = "Error: I couldn't find $fileName, are you sure it exists?. No indentation done. Exiting.";
$self->logger($message);
$self->output_logfile;
die $message;
}
}
# store the file extension
${$self}{fileExtension} = $ext;
# read the file into the Document body
my @lines;
open(MAINFILE, $fileName) or die "Could not open input file, $fileName";
push(@lines,$_) while(<MAINFILE>);
close(MAINFILE);
# the all-important step: update the body
${$self}{body} = join("",@lines);
}
1;
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