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/$trailingCommentRegExp/; use LatexIndent::GetYamlSettings qw/%mainSettings/; use LatexIndent::Switches qw/$is_t_switch_active $is_tt_switch_active $is_rr_switch_active/; use LatexIndent::LogFile qw/$logger/; 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 $is_t_switch_active ; } my @replacements = @{$mainSettings{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;