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package Perinci::To::Doc::Role::Section::AddTextLines; |
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our $DATE = '2021-02-21'; # DATE |
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our $VERSION = '0.875'; # VERSION |
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use 5.010; |
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use Log::ger; |
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use Moo::Role; |
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requires 'doc_lines'; |
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requires 'doc_indent_level'; |
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requires 'doc_indent_str'; |
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has doc_wrap => (is => 'rw', default => sub {1}); |
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sub add_doc_lines { |
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my $self = shift; |
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my $opts; |
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if (ref($_[0]) eq 'HASH') { $opts = shift } |
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$opts //= {}; |
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my @lines = map { $_ . (/\n\z/s ? "" : "\n") } |
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map {/\n/ ? split /\n/ : $_} @_; |
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# debug |
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#my @c = caller(2); |
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#$c[1] =~ s!.+/!!; |
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#@lines = map {"[from $c[1]:$c[2]]$_"} @ lines; |
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my $indent = $self->doc_indent_str x $self->doc_indent_level; |
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my $wrap = $opts->{wrap} // $self->doc_wrap; |
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if ($wrap) { |
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require Text::Wrap; |
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# split into paragraphs, merge each paragraph text into a single line |
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# first |
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my @para; |
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my $i = 0; |
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my ($start, $type); |
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$type = ''; |
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#$log->warnf("lines=%s", \@lines); |
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for (@lines) { |
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if (/^\s*$/) { |
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if (defined($start) && $type ne 'blank') { |
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push @para, [$type, [@lines[$start..$i-1]]]; |
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undef $start; |
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} |
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$start //= $i; |
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$type = 'blank'; |
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} elsif (/^\s{4,}\S+/ && (!$i || $type eq 'verbatim' || |
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(@para && $para[-1][0] eq 'blank'))) { |
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if (defined($start) && $type ne 'verbatim') { |
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push @para, [$type, [@lines[$start..$i-1]]]; |
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undef $start; |
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} |
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$start //= $i; |
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$type = 'verbatim'; |
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} else { |
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if (defined($start) && $type ne 'normal') { |
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push @para, [$type, [@lines[$start..$i-1]]]; |
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undef $start; |
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} |
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$start //= $i; |
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$type = 'normal'; |
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} |
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#$log->warnf("i=%d, lines=%s, start=%s, type=%s", |
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# $i, $_, $start, $type); |
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$i++; |
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} |
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if (@para && $para[-1][0] eq $type) { |
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push @{ $para[-1][1] }, [$type, [@lines[$start..$i-1]]]; |
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} else { |
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push @para, [$type, [@lines[$start..$i-1]]]; |
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} |
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#$log->warnf("para=%s", \@para); |
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for my $para (@para) { |
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if ($para->[0] eq 'blank') { |
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push @{$self->doc_lines}, @{$para->[1]}; |
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} else { |
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if ($para->[0] eq 'normal') { |
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for (@{$para->[1]}) { |
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s/\n/ /g; |
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} |
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$para->[1] = [join("", @{$para->[1]}) . "\n"]; |
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} |
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#$log->warnf("para=%s", $para); |
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local $Text::Wrap::columns = $ENV{COLUMNS} // 80; |
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push @{$self->doc_lines}, |
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Text::Wrap::wrap($indent, $indent, @{$para->[1]}); |
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} |
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} |
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} else { |
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push @{$self->doc_lines}, |
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map {"$indent$_"} @lines; |
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} |
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} |
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1; |
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# ABSTRACT: Provide add_doc_lines() to add text with optional text wrapping |
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__END__ |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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Perinci::To::Doc::Role::Section::AddTextLines - Provide add_doc_lines() to add text with optional text wrapping |
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=head1 VERSION |
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This document describes version 0.875 of Perinci::To::Doc::Role::Section::AddTextLines (from Perl distribution Perinci-To-Doc), released on 2021-02-21. |
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=head1 DESCRIPTION |
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This role provides C<add_doc_lines()> which can add optionally wrapped text to |
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C<doc_lines>. |
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The default column width for wrapping is from C<COLUMNS> environment variable, |
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or 80. |
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=head1 REQUIRES |
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These methods are provided by, e.g. L<Perinci::To::Doc::Role::Section>. |
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=head2 $o->doc_lines() |
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=head2 $o->doc_indent_level() |
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=head2 $o->doc_lines_str() |
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=head1 ATTRIBUTES |
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=head2 doc_wrap => BOOL (default: 1) |
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Whether to do text wrapping. |
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=head1 METHODS |
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=head2 $o->add_doc_lines([\%opts, ]@lines) |
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Add lines of text, optionally wrapping each line if wrapping is enabled. |
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Available options: |
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=over 4 |
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=item * wrap => BOOL |
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Whether to enable wrapping. Default is from the C<doc_wrap> attribute. |
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=back |
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=head1 ENVIRONMENT |
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=head2 COLUMNS => INT |
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Used to set column width. |
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=head1 HOMEPAGE |
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Please visit the project's homepage at L<https://metacpan.org/release/Perinci-To-Doc>. |
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=head1 SOURCE |
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Source repository is at L<https://github.com/perlancar/perl-Perinci-To-Doc>. |
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=head1 BUGS |
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Please report any bugs or feature requests on the bugtracker website L<https://github.com/perlancar/perl-Perinci-To-Doc/issues> |
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When submitting a bug or request, please include a test-file or a |
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patch to an existing test-file that illustrates the bug or desired |
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feature. |
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=head1 SEE ALSO |
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L<Perinci::To::Doc::Role::Section> |
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=head1 AUTHOR |
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perlancar <perlancar@cpan.org> |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013 by perlancar@cpan.org. |
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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=cut |