package LatexIndent::HorizontalWhiteSpace; # 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::GetYamlSettings qw/%masterSettings/; use LatexIndent::Switches qw/$is_t_switch_active $is_tt_switch_active/; use LatexIndent::LogFile qw/$logger/; use Exporter qw/import/; our @EXPORT_OK = qw/remove_trailing_whitespace remove_leading_space/; sub remove_trailing_whitespace{ my $self = shift; my %input = @_; $logger->trace("*Horizontal space removal routine") if $is_t_switch_active; # removeTrailingWhitespace can be either a hash or a scalar, but if # it's a scalar, we need to fix it if(ref($masterSettings{removeTrailingWhitespace}) ne 'HASH'){ $logger->trace("removeTrailingWhitespace specified as scalar, will update it to be a hash") if $is_t_switch_active; # grab the value my $removeTWS = $masterSettings{removeTrailingWhitespace}; # delete the scalar delete $masterSettings{removeTrailingWhitespace}; # redefine it as a hash ${$masterSettings{removeTrailingWhitespace}}{beforeProcessing} = $removeTWS; ${$masterSettings{removeTrailingWhitespace}}{afterProcessing} = $removeTWS; $logger->trace("removeTrailingWhitespace: beforeProcessing is now $removeTWS") if $is_t_switch_active; $logger->trace("removeTrailingWhitespace: afterProcessing is now $removeTWS") if $is_t_switch_active; } # this method can be called before the indendation, and after, depending upon the input if($input{when} eq "before"){ return unless(${$masterSettings{removeTrailingWhitespace}}{beforeProcessing}); $logger->trace("Removing trailing white space *before* the document is processed (see removeTrailingWhitespace: beforeProcessing)") if $is_t_switch_active; } elsif($input{when} eq "after"){ return unless(${$masterSettings{removeTrailingWhitespace}}{afterProcessing}); $logger->trace("Removing trailing white space *after* the document is processed (see removeTrailingWhitespace: afterProcessing)") if $is_t_switch_active; } else { return; } ${$self}{body} =~ s/ \h+ # followed by possible horizontal space $ # up to the end of a line //xsmg; } sub remove_leading_space{ my $self = shift; $logger->trace("*Removing leading space from ${$self}{name} (verbatim/noindentblock already accounted for)") if $is_t_switch_active; ${$self}{body} =~ s/ ( ^ # beginning of the line \h* # with 0 or more horizontal spaces )? # possibly //mxg; return; } 1;