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package LatexIndent::Replacement;
# 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 LatexIndent::Tokens qw/%tokens/;
use LatexIndent::TrailingComments qw/$trailingCommentRegExp/;
use LatexIndent::GetYamlSettings qw/%masterSettings/;
use LatexIndent::Switches qw/$is_t_switch_active $is_tt_switch_active $is_rr_switch_active/;
use LatexIndent::LogFile qw/$logger/;
use Data::Dumper;
use Exporter qw/import/;
our @ISA = "LatexIndent::Document"; # class inheritance, Programming Perl, pg 321
our @EXPORT_OK = qw/make_replacements/;
sub make_replacements{
my $self = shift;
my %input = @_;
if ($is_t_switch_active and !$is_rr_switch_active){
$logger->trace("*Replacement mode *$input{when}* indentation: -r") ;
} elsif ($is_t_switch_active and $is_rr_switch_active) {
$logger->trace("*Replacement mode, -rr switch is active") if $is_t_switch_active ;
}
my @replacements = @{$masterSettings{replacements}};
foreach ( @replacements ){
next if !(${$_}{this} or ${$_}{substitution});
# default value of "lookForThis" is 1
${$_}{lookForThis} = 1 if( !(defined ${$_}{lookForThis}));
# move on if this one shouldn't be looked for
next if(!${$_}{lookForThis});
# default value of "when" is before
${$_}{when} = "before" if( !(defined ${$_}{when}) or $is_rr_switch_active);
# update to the logging file
if($is_t_switch_active and (${$_}{when} eq $input{when})){
$logger->trace("-");
$logger->trace("this: ${$_}{this}") if(${$_}{this});
$logger->trace("that: ${$_}{that}") if(${$_}{that});
$logger->trace("substitution: ${$_}{substitution}") if(${$_}{substitution});
$logger->trace("when: ${$_}{when}");
}
# perform the substitutions
if(${$_}{when} eq $input{when}){
$logger->warn("*You have specified both 'this' and 'substitution'; the 'substitution' field will be ignored") if(${$_}{this} and ${$_}{substitution});
if(${$_}{this}){
# *string* replacement
# *string* replacement
# *string* replacement
my $this = qq{${$_}{this}};
my $that = (defined ${$_}{that}) ? qq{${$_}{that}} : q();
my $index_match = index(${$self}{body}, $this);
while ( $index_match != -1 ) {
substr (${$self}{body}, $index_match, length($this), $that );
$index_match = index(${$self}{body}, $this);
}
} else {
# *regex* replacement
# *regex* replacement
# *regex* replacement
# https://stackoverflow.com/questions/12423337/how-to-pass-a-replacing-regex-as-a-command-line-argument-to-a-perl-script
my $body = ${$self}{body};
eval("\$body =~ ${$_}{substitution}");
${$self}{body} = $body ;
}
}
}
}
1;
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