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-rw-r--r--roles/wiki/files/var/lib/ikiwiki/IkiWiki/Plugin/pandoc.pm757
1 files changed, 757 insertions, 0 deletions
diff --git a/roles/wiki/files/var/lib/ikiwiki/IkiWiki/Plugin/pandoc.pm b/roles/wiki/files/var/lib/ikiwiki/IkiWiki/Plugin/pandoc.pm
new file mode 100644
index 0000000..a3b803a
--- /dev/null
+++ b/roles/wiki/files/var/lib/ikiwiki/IkiWiki/Plugin/pandoc.pm
@@ -0,0 +1,757 @@
+#!/usr/bin/env perl
+
+package IkiWiki::Plugin::pandoc;
+
+use warnings;
+use strict;
+use IkiWiki;
+use FileHandle;
+use IPC::Open2;
+use File::Path qw/make_path/;
+use JSON;
+
+# activate with 'generate_$format' in meta; turn on all with 'generate_all_formats'.
+my %extra_formats = (
+ pdf => { ext=>'pdf', label=>'PDF', format=>'latex', extra=>[], order=>1 },
+ docx => { ext=>'docx', label=>'DOCX', format=>'docx', extra=>[], order=>2 },
+ odt => { ext=>'odt', label=>'ODT', format=>'odt', extra=>[], order=>3 },
+ beamer => { ext=>'beamer.pdf', label=>'Beamer', format=>'beamer', extra=>[], order=>4 },
+ revealjs => { ext=>'revealjs.html', label=>'RevealJS', format=>'revealjs', extra=>['--self-contained'], order=>5 },
+ epub => { ext=>'epub', label=>'EPUB', format=>'epub3', extra=>[], order=>6 },
+ latex => { ext=>'tex', label=>'LaTeX', format=>'latex', extra=>['--standalone'], order=>7 },
+);
+
+sub import {
+ my $markdown_ext = $config{pandoc_markdown_ext} || "mdwn";
+
+ # May be both a string with a single value, a string containing commas or an arrayref
+ if ($markdown_ext =~ /,/) {
+ $markdown_ext = [split /\s*,\s*/, $markdown_ext];
+ }
+
+ hook(type => "getsetup", id => "pandoc", call => \&getsetup);
+ hook(type => "pagetemplate", id => "pandoc", call => \&pagetemplate);
+ hook(type => "pageactions", id => "pandoc", call => \&pageactions);
+
+ if (ref $markdown_ext eq 'ARRAY') {
+ foreach my $mde (@$markdown_ext) {
+ hook(type => 'htmlize', id => $mde,
+ call => sub{ htmlize("markdown", @_) });
+ }
+ } else {
+ hook(type => "htmlize", id => $markdown_ext,
+ call => sub { htmlize("markdown", @_) });
+ }
+ if ($config{pandoc_latex}) {
+ hook(type => "htmlize", id => "tex",
+ call => sub { htmlize("latex", @_) });
+ }
+ if ($config{pandoc_rst}) {
+ hook(type => "htmlize", id => "rst",
+ call => sub { htmlize("rst", @_) });
+ }
+ if ($config{pandoc_textile}) {
+ hook(type => "htmlize", id => "textile",
+ call => sub { htmlize("textile", @_) });
+ }
+ if ($config{pandoc_mediawiki}) {
+ hook(type => "htmlize", id => "mediawiki",
+ call => sub { htmlize("mediawiki", @_) });
+ }
+ if ($config{pandoc_opml}) {
+ hook(type => "htmlize", id => "opml",
+ call => sub { htmlize("opml", @_) });
+ }
+ if ($config{pandoc_org}) {
+ hook(type => "htmlize", id => "org",
+ call => sub { htmlize("org", @_) });
+ }
+}
+
+
+sub getsetup () {
+ return
+ plugin => {
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_command => {
+ type => "string",
+ example => "/usr/local/bin/pandoc",
+ description => "Path to pandoc executable",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_citeproc => {
+ type => "string",
+ example => "/usr/local/bin/pandoc-citeproc",
+ description => "Path to pandoc-citeproc executable",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_markdown_ext => {
+ type => "string",
+ example => "mdwn,md,markdown",
+ description => "File extension(s) for Markdown files handled by Pandoc",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_latex => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of LaTeX documents (extension=tex)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_rst => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of reStructuredText documents (extension=rst)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_textile => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of Textile documents (extension=textile)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_mediawiki => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of MediaWiki documents (extension=mediawiki)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_org => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of Emacs org-mode documents (extension=org)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_opml => {
+ type => "boolean",
+ example => 0,
+ description => "Enable Pandoc processing of OPML documents (extension=opml)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_smart => {
+ type => "boolean",
+ example => 1,
+ description => "Use smart quotes, dashes, and ellipses",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_obfuscate => {
+ type => "boolean",
+ example => 1,
+ description => "Obfuscate emails",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_html5 => {
+ type => "boolean",
+ example => 0,
+ description => "Generate HTML5",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_ascii => {
+ type => "boolean",
+ example => 0,
+ description => "Generate ASCII instead of UTF8",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_numsect => {
+ type => "boolean",
+ example => 0,
+ description => "Number sections",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_sectdiv => {
+ type => "boolean",
+ example => 0,
+ description => "Attach IDs to section DIVs instead of Headers",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_codeclasses => {
+ type => "string",
+ example => "",
+ description => "Classes to use for indented code blocks",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_math => {
+ type => "string",
+ example => "mathjax",
+ description => "How to process TeX math (mathjax, katex, mathml, mathjs, latexmathml, asciimathml, mimetex, webtex)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_math_custom_js => {
+ type => "string",
+ example => "",
+ description => "Link to local/custom javascript for math (or to server-side script for mimetex and webtex)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_math_custom_css => {
+ type => "string",
+ example => "",
+ description => "Link to local/custom CSS for math (requires appropriate pandoc_math setting)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_bibliography => {
+ type => "string",
+ example => "",
+ description => "Path to default bibliography file",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_csl => {
+ type => "string",
+ example => "",
+ description => "Path to CSL file (for references and bibliography)",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_csl_default_lang => {
+ type => "string",
+ example => "",
+ description => "Default language code (RFC 1766) for citations processing",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_filters => {
+ type => "string",
+ example => "",
+ description => "A comma-separated list of custom pandoc filters",
+ safe => 1,
+ rebuild => 1,
+ },
+ pandoc_latex_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for LaTeX and normal PDF output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_latex_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for LaTeX (and PDF) generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_beamer_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for Beamer PDF output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_beamer_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for Beamer PDF generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_pdf_export_cleanup => {
+ type => "boolean",
+ example => "0",
+ description => "Whether to clean up LaTeX auxiliary files after PDF generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_revealjs_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for Reveal.js slides output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_revealjs_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for Reveal.js slides generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_docx_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for MS Word (docx) output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_docx_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for DOCX generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_odt_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for OpenDocument (odt) output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_odt_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for ODT generation",
+ safe => 0,
+ rebuild => 0,
+ },
+ pandoc_epub_template => {
+ type => "string",
+ example => "",
+ description => "Path to pandoc template for EPUB3 output",
+ safe => 1,
+ rebuild => 0,
+ },
+ pandoc_epub_extra_options => {
+ type => "internal",
+ default => [],
+ description => "List of extra pandoc options for EPUB3 generation",
+ safe => 0,
+ rebuild => 0,
+ };
+}
+
+
+sub htmlize ($@) {
+ my $format = shift;
+ my %params = @_;
+ my $page = $params{page};
+ my $htmlformat = 'html';
+
+ local(*PANDOC_IN, *JSON_IN, *JSON_OUT, *PANDOC_OUT);
+ my @args = ();
+
+ # The default assumes pandoc is in PATH
+ my $command = $config{pandoc_command} || "pandoc";
+
+ if ($config{pandoc_smart}) {
+ push @args, '--smart';
+ }
+
+ if ($config{pandoc_obfuscate}) {
+ push @args, '--email-obfuscation=references';
+ } else {
+ push @args, '--email-obfuscation=none';
+ }
+
+ if ($config{pandoc_html5}) {
+ $htmlformat = 'html5';
+ }
+
+ if ($config{pandoc_ascii}) {
+ push @args, '--ascii';
+ }
+
+ if ($config{pandoc_numsect}) {
+ push @args, '--number-sections';
+ }
+
+ if ($config{pandoc_sectdiv}) {
+ push @args, '--section-divs';
+ }
+
+ if ($config{pandoc_codeclasses} && ($config{pandoc_codeclasses} ne "")) {
+ push @args, '--indented-code-classes=' . $config{pandoc_codeclasses};
+ }
+
+ # How to process math. Normally either mathjax or katex.
+ my %mathconf = map {($_=>"--$_")} qw(
+ jsmath mathjax latexmathml asciimathml mathml katex mimetex webtex
+ );
+ my %with_urls = qw/mimetex 1 webtex 1/;
+ my $mathopt = $1 if $config{pandoc_math} && $config{pandoc_math} =~ /(\w+)/;
+ my $custom_js = $config{pandoc_math_custom_js} || '';
+ # cleanup pandoc-prefixed keys from persistent meta
+ if (ref $pagestate{$page}{meta} eq 'HASH') {
+ my @delkeys = ();
+ foreach my $k (%{ $pagestate{$page}{meta} }) {
+ push @delkeys, $k if $k =~ /^pandoc_/;
+ }
+ delete $pagestate{$page}{meta}{$_} for @delkeys;
+ }
+ if ($mathopt && $mathconf{$mathopt}) {
+ if ($with_urls{$mathopt} && $custom_js) {
+ # In these cases, the 'custom js' is a misnomer: actually a server-side script
+ push @args, $mathconf{$mathopt} ."=". $custom_js;
+ } else {
+ push @args, $mathconf{$mathopt};
+ }
+ $pagestate{$page}{meta}{"pandoc_math"} = $mathopt;
+ $pagestate{$page}{meta}{"pandoc_math_$mathopt"} = 1;
+ $pagestate{$page}{meta}{"pandoc_math_custom_js"} = $custom_js if $custom_js;
+ }
+ # Convert to intermediate JSON format so that the title block
+ # can be parsed out
+ # We must omit the 'bibliography' parameter here, otherwise the list of
+ # references will be doubled.
+ my $to_json_pid = open2(*JSON_OUT, *PANDOC_OUT, $command,
+ '-f', $format,
+ '-t', 'json',
+ @args, '--normalize');
+ error("Unable to open $command") unless $to_json_pid;
+
+ # Workaround for perl bug (#376329)
+ require Encode;
+ my $content = Encode::encode_utf8($params{content});
+
+ # Protect inline plugin placeholders from being mangled by pandoc:
+ $content =~ s{<div class="inline" id="(\d+)"></div>}
+ {::INLINE::PLACEHOLDER::$1::}g;
+
+ print PANDOC_OUT $content;
+ close PANDOC_OUT;
+
+ my $json_content = <JSON_OUT>;
+ close JSON_OUT;
+
+ waitpid $to_json_pid, 0;
+
+ # Parse the title block out of the JSON and set the meta values
+ my @json_content = @{decode_json($json_content)};
+ my $meta = {};
+ if (ref $json_content[0] eq 'HASH') {
+ $meta = $json_content[0]->{'unMeta'};
+ }
+ else {
+ warn "WARNING: Unexpected format for meta block. Incompatible version of Pandoc?\n";
+ }
+
+ # Get some selected meta attributes, more specifically:
+ # (title date bibliography csl subtitle abstract summary description
+ # version lang locale references author [+ num_authors primary_author]),
+ # as well as some configuration options (generate_*, *_extra_options, *_template).
+
+ my @format_keys = grep { $_ ne 'pdf' } keys %extra_formats;
+ my %scalar_meta = map { ($_=>undef) } qw(
+ title date bibliography csl subtitle abstract summary
+ description version lang locale);
+ $scalar_meta{$_.'_template'} = undef for @format_keys;
+ my %bool_meta = map { ("generate_$_"=>0) } keys %extra_formats;
+ my %list_meta = map { ($_=>[]) } qw/author references/;
+ $list_meta{$_.'_extra_options'} = [] for @format_keys;
+ my $have_bibl = 0;
+ foreach my $k (keys %scalar_meta) {
+ next unless $meta->{$k};
+ $scalar_meta{$k} = compile_string($meta->{$k}->{c});
+ # NB! Note that this is potentially risky, since pagestate is sticky, and
+ # we only cleanup the pandoc_* values in {meta}.
+ $pagestate{$page}{meta}{$k} = $scalar_meta{$k};
+ $pagestate{$page}{meta}{"pandoc_$k"} = $pagestate{$page}{meta}{$k};
+ }
+ foreach my $k (keys %bool_meta) {
+ my $gen_all = $meta->{generate_all_formats} || {};
+ next unless $meta->{$k} || $gen_all->{c};
+ my $val = $meta->{$k} ? $meta->{$k}->{c} : $gen_all->{c};
+ # simplifies matters with JSON::(PP::)Boolean objects
+ $val = 1 if $val == 1 || $val eq 'true';
+ if (ref $val || $val =~ /^\s*(?:off|no|false|0)\s*$/i) {
+ $bool_meta{$k} = 0;
+ } else {
+ $bool_meta{$k} = 1;
+ $pagestate{$page}{meta}{"pandoc_$k"} = 1;
+ }
+ }
+ foreach my $k (keys %list_meta) {
+ next unless $meta->{$k};
+ $list_meta{$k} = unwrap_c($meta->{$k});
+ $list_meta{$k} = [$list_meta{$k}] unless ref $list_meta{$k} eq 'ARRAY';
+ $have_bibl = 1 if $k eq 'references';
+ $pagestate{$page}{meta}{"pandoc_$k"} = $list_meta{$k};
+ }
+ # Try to add other keys as scalars, with pandoc_ prefix only.
+ foreach my $k (keys %$meta) {
+ next if exists $scalar_meta{$k} || exists $list_meta{$k};
+ eval {
+ $pagestate{$page}{meta}{"pandoc_$k"} = compile_string($meta->{$k}->{c});
+ };
+ }
+ my $num_authors = scalar @{ $list_meta{author} };
+ $scalar_meta{num_authors} = $num_authors;
+ $pagestate{$page}{meta}{num_authors} = $num_authors;
+ if ($num_authors) {
+ $scalar_meta{primary_author} = $list_meta{author}->[0];
+ $pagestate{$page}{meta}{author} = join(', ', @{$list_meta{author}});
+ $pagestate{$page}{meta}{pandoc_primary_author} = $scalar_meta{primary_author}
+ }
+
+ # The bibliography may be set in a Meta block in the page or in the .setup file.
+ # If both are present, the Meta block has precedence.
+ for my $bibl ($scalar_meta{bibliography}, $config{pandoc_bibliography}) {
+ if ($bibl) {
+ $have_bibl = 1;
+ $pagestate{$page}{meta}{pandoc_bibliography} = $bibl;
+ push @args, '--bibliography='.$bibl;
+ last;
+ }
+ }
+ # Similarly for the CSL file...
+ for my $cslfile ($scalar_meta{csl}, $config{pandoc_csl}) {
+ if ($cslfile) {
+ $pagestate{$page}{meta}{pandoc_csl} = $cslfile;
+ push @args, '--csl='.$cslfile;
+ last;
+ }
+ }
+ # If a default CSL language is specified, add that to args,
+ # (unless it is overridden by meta)
+ unless ($scalar_meta{lang} || $scalar_meta{locale}) {
+ if ($config{pandoc_csl_default_lang}) {
+ push @args, "--metadata=lang:".$config{pandoc_csl_default_lang};
+ }
+ }
+ # Turn on the pandoc-citeproc filter if either global bibliography,
+ # local bibliography or a 'references' key in Meta is present.
+ if ($have_bibl) {
+ my $citeproc = $config{pandoc_citeproc} || 'pandoc-citeproc';
+ push @args, "--filter=$citeproc";
+ }
+
+ # Other pandoc filters. Note that currently there is no way to
+ # configure a filter to run before pandoc-citeproc has done its work.
+ if ($config{pandoc_filters}) {
+ my @filters = split /\s*,\s*/, $config{pandoc_filters};
+ s/^["']//g for @filters; # get rid of enclosing quotes
+ foreach my $filter (@filters) {
+ push @args, "--filter=$filter";
+ }
+ }
+
+ my $to_html_pid = open2(*PANDOC_IN, *JSON_IN, $command,
+ '-f', 'json',
+ '-t', $htmlformat,
+ @args);
+ error("Unable to open $command") unless $to_html_pid;
+
+ $pagestate{$page}{pandoc_extra_formats} = {};
+ foreach my $ext (keys %extra_formats) {
+ if ($bool_meta{"generate_$ext"}) {
+ export_file($page, $ext, $json_content, $command, @args);
+ } else {
+ remove_exported_file($page, $ext);
+ }
+ }
+
+ print JSON_IN $json_content;
+ close JSON_IN;
+
+ my @html = <PANDOC_IN>;
+ close PANDOC_IN;
+
+ waitpid $to_html_pid, 0;
+
+ $content = Encode::decode_utf8(join('', @html));
+
+ # Reinstate placeholders for inline plugin:
+ $content =~ s{::INLINE::PLACEHOLDER::(\d+)::}
+ {<div class="inline" id="$1"></div>}g;
+
+ return $content;
+}
+
+
+sub pagetemplate (@) {
+ my %params = @_;
+ my $page = $params{page};
+ my $template = $params{template};
+ foreach my $k (keys %{$pagestate{$page}{meta}}) {
+ next unless $k =~ /^pandoc_/;
+ $template->param($k => $pagestate{$page}{meta}{$k});
+ }
+}
+
+sub pageactions {
+ my %args = @_;
+ my $page = $args{page};
+ my @links = ();
+ return unless $pagestate{$page}{pandoc_extra_formats};
+ my @exts = sort {
+ $extra_formats{$a}->{order} <=> $extra_formats{$b}->{order}
+ } keys %{ $pagestate{$page}{pandoc_extra_formats} };
+ foreach my $ext (@exts) {
+ my $url = $pagestate{$page}{pandoc_extra_formats}{$ext};
+ next unless $url;
+ my $label = $extra_formats{$ext}->{label} || $ext;
+ push @links, qq[
+ <a href="$url"
+ class="extra-format-link"
+ title="Download $label version of this page"
+ target="_blank">$label</a>
+ ];
+ }
+ return @links;
+}
+
+sub export_file {
+ my ($page, $ext, $json_content, $command, @args) = @_;
+ my ($export_path, $export_url) = _export_file_path_and_url($page, $ext);
+ my $subdir = $1 if $export_path =~ /(.*)\//;
+ my @extra_args = @{ $extra_formats{$ext}->{extra} };
+ my $eopt = $ext eq 'pdf' ? 'latex' : $ext;
+ # Note that template in meta OVERRIDES template in config,
+ # while extra_options in meta are ADDED to extra_options in config.
+ my $template = $pagestate{$page}{meta}{"pandoc_".$eopt."_template"}
+ || $config{"pandoc_".$eopt."_template"} || '';
+ if ($template) {
+ push @extra_args, ($ext =~ /^(docx|odt)$/
+ ? "--reference-$ext=$template"
+ : "--template=$template");
+ }
+ my $conf_extra = $config{"pandoc_".$eopt."_extra_options"};
+ my $conf_extra_custom = $pagestate{$page}{meta}{"pandoc_".$eopt."_extra_options"};
+ foreach my $cnf ($conf_extra, $conf_extra_custom) {
+ if (ref $cnf eq 'ARRAY' && @$cnf) {
+ push @extra_args, @$cnf;
+ }
+ }
+ my $pdf_cleanup = 0;
+ if (defined $pagestate{$page}{meta}{"pandoc_pdf_export_cleanup"}) {
+ $pdf_cleanup = $pagestate{$page}{meta}{"pandoc_pdf_export_cleanup"};
+ } elsif ($config{"pandoc_pdf_export_cleanup"}) {
+ $pdf_cleanup = 1;
+ }
+ # If the user has asked for native LaTeX bibliography handling in the
+ # extra_args for this export format (using --biblatex or --natbib),
+ # some extra care is needed. Among other things, we need an external
+ # tool for PDF generation. In this case, $indirect_pdf will be true.
+ my %maybe_non_citeproc = qw/latex 1 pdf 1 beamer 1/;
+ my $indirect_pdf = 0;
+ if ($maybe_non_citeproc{$ext} && grep { /^(?:--biblatex|--natbib)$/ } @extra_args) {
+ $indirect_pdf = 1 unless $ext eq 'latex'; # both for pdf and beamer
+ @args = grep { ! /--filter=.*pandoc-citeproc/ } @args;
+ }
+ eval {
+ if ($subdir && !-d $subdir) {
+ make_path($subdir) or die "Could not make_path $subdir: $!";
+ }
+ my $to_format = $extra_formats{$ext}->{format} || $ext;
+ my $tmp_export_path = $export_path;
+ $tmp_export_path =~ s/\.pdf$/.tex/ if $indirect_pdf;
+ open(EXPORT, "|-",
+ $command,
+ '-f' => 'json',
+ '-t' => $to_format,
+ '-o' => $tmp_export_path,
+ @args, @extra_args) or die "Could not open pipe for $ext: $!";
+ print EXPORT $json_content;
+ close EXPORT or die "Could not close pipe for $ext: $!";
+ if ($indirect_pdf && $tmp_export_path ne $export_path) {
+ my @latexmk_args = qw(-quiet -silent);
+ if (grep { /xelatex/ } @extra_args) {
+ push @latexmk_args, '-xelatex';
+ } elsif (grep { /lualatex/ } @extra_args) {
+ push @latexmk_args, '-lualatex';
+ } else {
+ push @latexmk_args, '-pdf';
+ }
+ chdir $subdir or die "Could not chdir to $subdir: $!";
+ my $plain_fn = $1 if $tmp_export_path =~ /([^\/]+)$/;
+ $plain_fn =~ s/\.tex//;
+ system('latexmk', @latexmk_args, $plain_fn) == 0
+ or die "Could not run latexmk for pdf generation ($export_path): $!";
+ if ($pdf_cleanup) {
+ system('latexmk', '-c', '-quiet', '-silent', $plain_fn) == 0
+ or die "Could not run latexmk for cleanup ($export_path): $!";
+ # These files are apparently not cleaned up by latexmk -c.
+ foreach ('run.xml', 'bbl') {
+ my $fn = "$subdir/$plain_fn.$_";
+ unlink($fn) if -f $fn;
+ }
+ }
+ }
+ $pagestate{$page}{pandoc_extra_formats}{$ext} = $export_url;
+ };
+ if ($@) {
+ warn "EXPORT ERROR FOR $page (format: $ext): $@\n";
+ }
+}
+
+sub remove_exported_file {
+ my ($page, $ext) = @_;
+ my ($export_path, $export_url) = _export_file_path_and_url($page, $ext);
+ if (-f $export_path) {
+ eval { unlink $export_path or die "Could not unlink $export_path: $!" };
+ if ($@) {
+ warn "WARNING: remove_exported_file; page=$page, ext=$ext: $@\n";
+ }
+ }
+}
+
+sub _export_file_path_and_url {
+ my ($page, $ext) = @_;
+ # the html file will end up in "$destdir/$page/index.html",
+ # while e.g. a pdf will be in "$destdir/$page/$page_minus_dirs.pdf".
+ my $extension = $extra_formats{$ext}->{ext} || $ext;
+ my $destdir = $config{destdir} || '.';
+ my $page_minus_dirs = $1 if $page =~ /([^\/]*)$/;
+ $page_minus_dirs ||= 'index';
+ my $export_path = "$destdir/$page/$page_minus_dirs.$extension";
+ my $export_url = $config{url};
+ $export_url .= "/" unless $export_url =~ /\/$/;
+ $export_url .= "$page/$page_minus_dirs.$extension";
+ return ($export_path, $export_url);
+}
+
+
+## compile_string and unwrap_c are used to make the meta data structures
+## easier to work with for perl.
+
+sub compile_string {
+ # Partially represents an item from the data structure in meta as a string.
+ my @uncompiled = @_;
+ return $uncompiled[0] if @uncompiled==1 && !ref($uncompiled[0]);
+ @uncompiled = @{$uncompiled[0]} if @uncompiled==1 && ref $uncompiled[0] eq 'ARRAY';
+ my $compiled_string = '';
+ foreach my $word_or_space (@uncompiled) {
+ next unless ref $word_or_space eq 'HASH';
+ my $type = $word_or_space->{'t'} || '';
+ $compiled_string .= compile_string(@{ $word_or_space->{c} }) if $type eq 'MetaInlines';
+ next unless $type eq 'Str' || $type eq 'Space' || $type eq 'MetaString';
+ $compiled_string .= $type eq 'Space' ? ' ' : $word_or_space->{c};
+ }
+ return $compiled_string;
+}
+sub unwrap_c {
+ # Unwrap pandoc's MetaLists, MetaInlines, etc.
+ # Finds the deepest-level scalar value for 'c' in the data structure.
+ # Lists with one element are replaced with the scalar, lists with more
+ # than one element are returned as an arrayref containing scalars.
+ my $container = shift;
+ if (ref $container eq 'ARRAY' && @$container > 1) {
+ if (ref $container->[0] eq 'HASH' && $container->[0]->{t} =~ /^(?:Str|Space)$/) {
+ # handles scalar author fields
+ return join('', map { compile_string($_) } @$container);
+ } else {
+ return [map {unwrap_c($_)} @$container];
+ }
+ } elsif (ref $container eq 'ARRAY' && @$container) {
+ return unwrap_c($container->[0]);
+ } elsif (ref $container eq 'ARRAY') {
+ return;
+ } elsif (ref $container eq 'HASH' && $container->{c}) {
+ return unwrap_c($container->{c});
+ } elsif (ref $container) {
+ return;
+ } else {
+ return $container;
+ }
+}
+
+1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 02:31:24 +0000