X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/4c6c00ccdff71fbb8973de7d256fc987d7a2a7e0..532ec56a5f2131809f8a2709f2f1d5c1e5d0a19c:/IkiWiki/Plugin/po.pm

diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index 936fe3c49..a37230b88 100644
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -1,5 +1,7 @@
 #!/usr/bin/perl
 # .po as a wiki page type
+# Licensed under GPL v2 or greater
+# Copyright (C) 2008 intrigeri <intrigeri@boum.org>
 # inspired by the GPL'd po4a-translate,
 # which is Copyright 2002, 2003, 2004 by Martin Quinson (mquinson#debian.org)
 package IkiWiki::Plugin::po;
@@ -15,8 +17,10 @@ use File::Copy;
 use File::Spec;
 use File::Temp;
 use Memoize;
+use UNIVERSAL;
 
 my %translations;
+my @origneedsbuild;
 our %filtered;
 
 memoize("_istranslation");
@@ -28,28 +32,33 @@ memoize("percenttranslated");
 
 # backup references to subs that will be overriden
 my %origsubs;
-$origsubs{'bestlink'}=\&IkiWiki::bestlink;
-$origsubs{'beautify_urlpath'}=\&IkiWiki::beautify_urlpath;
-$origsubs{'targetpage'}=\&IkiWiki::targetpage;
 
-sub import {
+sub import { #{{{
 	hook(type => "getsetup", id => "po", call => \&getsetup);
 	hook(type => "checkconfig", id => "po", call => \&checkconfig);
 	hook(type => "needsbuild", id => "po", call => \&needsbuild);
+	hook(type => "scan", id => "po", call => \&scan, last =>1);
 	hook(type => "filter", id => "po", call => \&filter);
 	hook(type => "htmlize", id => "po", call => \&htmlize);
 	hook(type => "pagetemplate", id => "po", call => \&pagetemplate, last => 1);
+	hook(type => "change", id => "po", call => \&change);
 	hook(type => "editcontent", id => "po", call => \&editcontent);
+
+	$origsubs{'bestlink'}=\&IkiWiki::bestlink;
 	inject(name => "IkiWiki::bestlink", call => \&mybestlink);
+	$origsubs{'beautify_urlpath'}=\&IkiWiki::beautify_urlpath;
 	inject(name => "IkiWiki::beautify_urlpath", call => \&mybeautify_urlpath);
+	$origsubs{'targetpage'}=\&IkiWiki::targetpage;
 	inject(name => "IkiWiki::targetpage", call => \&mytargetpage);
-}
+	$origsubs{'urlto'}=\&IkiWiki::urlto;
+	inject(name => "IkiWiki::urlto", call => \&myurlto);
+} #}}}
 
 sub getsetup () { #{{{
 	return
 		plugin => {
 			safe => 0,
-			rebuild => 1, # format plugin
+			rebuild => 1, # format plugin & changes html filenames
 		},
 		po_master_language => {
 			type => "string",
@@ -58,7 +67,7 @@ sub getsetup () { #{{{
 				'name' => 'English'
 			},
 			description => "master language (non-PO files)",
-			safe => 0,
+			safe => 1,
 			rebuild => 1,
 		},
 		po_slave_languages => {
@@ -69,7 +78,7 @@ sub getsetup () { #{{{
 				'de' => 'Deutsch'
 			},
 			description => "slave languages (PO files)",
-			safe => 0,
+			safe => 1,
 			rebuild => 1,
 		},
 		po_translatable_pages => {
@@ -77,40 +86,61 @@ sub getsetup () { #{{{
 			example => "!*/Discussion",
 			description => "PageSpec controlling which pages are translatable",
 			link => "ikiwiki/PageSpec",
-			safe => 0,
+			safe => 1,
 			rebuild => 1,
 		},
 		po_link_to => {
 			type => "string",
 			example => "current",
 			description => "internal linking behavior (default/current/negotiated)",
-			safe => 0,
+			safe => 1,
 			rebuild => 1,
 		},
 } #}}}
 
+sub islanguagecode ($) { #{{{
+    my $code=shift;
+    return ($code =~ /^[a-z]{2}$/);
+} #}}}
+
 sub checkconfig () { #{{{
 	foreach my $field (qw{po_master_language po_slave_languages}) {
 		if (! exists $config{$field} || ! defined $config{$field}) {
 			error(sprintf(gettext("Must specify %s"), $field));
 		}
 	}
-	if (! exists $config{po_link_to} ||
-	    ! defined $config{po_link_to}) {
-	    $config{po_link_to}="default";
+	if (! (keys %{$config{po_slave_languages}})) {
+		error(gettext("At least one slave language must be defined in po_slave_languages"));
 	}
+	map {
+		islanguagecode($_)
+			or error(sprintf(gettext("%s is not a valid language code"), $_));
+	} ($config{po_master_language}{code}, keys %{$config{po_slave_languages}});
 	if (! exists $config{po_translatable_pages} ||
 	    ! defined $config{po_translatable_pages}) {
-	    $config{po_translatable_pages}="";
+		$config{po_translatable_pages}="";
 	}
-	if ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) {
-		error(gettext("po_link_to=negotiated requires usedirs to be set"));
+	if (! exists $config{po_link_to} ||
+	    ! defined $config{po_link_to}) {
+		$config{po_link_to}='default';
+	}
+	elsif (! grep {
+			$config{po_link_to} eq $_
+		} ('default', 'current', 'negotiated')) {
+		warn(sprintf(gettext('po_link_to=%s is not a valid setting, falling back to po_link_to=default'),
+				$config{po_link_to}));
+		$config{po_link_to}='default';
+	}
+	elsif ($config{po_link_to} eq "negotiated" && ! $config{usedirs}) {
+		warn(gettext('po_link_to=negotiated requires usedirs to be enabled, falling back to po_link_to=default'));
+		$config{po_link_to}='default';
 	}
 	push @{$config{wiki_file_prune_regexps}}, qr/\.pot$/;
 } #}}}
 
 sub potfile ($) { #{{{
 	my $masterfile=shift;
+
 	(my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/);
 	$dir='' if $dir eq './';
 	return File::Spec->catpath('', $dir, $name . ".pot");
@@ -119,20 +149,27 @@ sub potfile ($) { #{{{
 sub pofile ($$) { #{{{
 	my $masterfile=shift;
 	my $lang=shift;
+
 	(my $name, my $dir, my $suffix) = fileparse($masterfile, qr/\.[^.]*/);
 	$dir='' if $dir eq './';
 	return File::Spec->catpath('', $dir, $name . "." . $lang . ".po");
 } #}}}
 
+sub pofiles ($) { #{{{
+	my $masterfile=shift;
+	return map pofile($masterfile, $_), (keys %{$config{po_slave_languages}});
+} #}}}
+
 sub refreshpot ($) { #{{{
 	my $masterfile=shift;
+
 	my $potfile=potfile($masterfile);
 	my %options = ("markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0);
 	my $doc=Locale::Po4a::Chooser::new('text',%options);
-	$doc->read($masterfile);
 	$doc->{TT}{utf_mode} = 1;
 	$doc->{TT}{file_in_charset} = 'utf-8';
 	$doc->{TT}{file_out_charset} = 'utf-8';
+	$doc->read($masterfile);
 	# let's cheat a bit to force porefs option to be passed to Locale::Po4a::Po;
 	# this is undocument use of internal Locale::Po4a::TransTractor's data,
 	# compulsory since this module prevents us from using the porefs option.
@@ -141,6 +178,7 @@ sub refreshpot ($) { #{{{
 	$doc->{TT}{po_out}->set_charset('utf-8');
 	# do the actual work
 	$doc->parse;
+	IkiWiki::prep_writefile(basename($potfile),dirname($potfile));
 	$doc->writepo($potfile);
 } #}}}
 
@@ -152,9 +190,9 @@ sub refreshpofiles ($@) { #{{{
 	error("[po/refreshpofiles] POT file ($potfile) does not exist") unless (-e $potfile);
 
 	foreach my $pofile (@pofiles) {
+		IkiWiki::prep_writefile(basename($pofile),dirname($pofile));
 		if (-e $pofile) {
-			my $cmd = "msgmerge -U --backup=none $pofile $potfile";
-			system ($cmd) == 0
+			system("msgmerge", "-U", "--backup=none", $pofile, $potfile) == 0
 				or error("[po/refreshpofiles:$pofile] failed to update");
 		}
 		else {
@@ -164,59 +202,23 @@ sub refreshpofiles ($@) { #{{{
 	}
 } #}}}
 
+sub buildtranslationscache() { #{{{
+	# use istranslation's side-effect
+	map istranslation($_), (keys %pagesources);
+} #}}}
+
+sub resettranslationscache() { #{{{
+	undef %translations;
+} #}}}
+
 sub needsbuild () { #{{{
 	my $needsbuild=shift;
 
-	# build %translations, using istranslation's side-effect
-	foreach my $page (keys %pagesources) {
-		istranslation($page);
-	}
+	# backup @needsbuild content so that change() can know whether
+	# a given master page was rendered because its source file was changed
+	@origneedsbuild=(@$needsbuild);
 
-	# refresh/create POT and PO files as needed
-	my $updated_po_files=0;
-	foreach my $page (keys %pagesources) {
-		if (istranslatable($page)) {
-			my $pageneedsbuild = grep { $_ eq $pagesources{$page} } @$needsbuild;
-			my $updated_pot_file=0;
-			my $file=srcfile($pagesources{$page});
-			if ($pageneedsbuild || ! -e potfile($file)) {
-				refreshpot($file);
-				$updated_pot_file=1;
-			}
-			my @pofiles;
-			foreach my $lang (keys %{$config{po_slave_languages}}) {
-				my $pofile=pofile($file, $lang);
-				my $pofile_rel=pofile($pagesources{$page}, $lang);
-				if ($pageneedsbuild || $updated_pot_file || ! -e $pofile) {
-					push @pofiles, $pofile;
-					push @$needsbuild, $pofile_rel
-					  unless grep { $_ eq $pofile_rel } @$needsbuild;
-				}
-			}
-			if (@pofiles) {
-				refreshpofiles($file, @pofiles) ;
-				map { IkiWiki::rcs_add($_); } @pofiles if ($config{rcs});
-				$updated_po_files = 1;
-			}
-		}
-	}
-
-	# check staged changes in
-	if ($updated_po_files) {
-		if ($config{rcs}) {
-			IkiWiki::disable_commit_hook();
-			IkiWiki::rcs_commit_staged(gettext("updated PO files"),
-				"refreshpofiles", "127.0.0.1");
-			IkiWiki::enable_commit_hook();
-			IkiWiki::rcs_update();
-		}
-		# refresh module's private variables
-		undef %filtered;
-		undef %translations;
-		foreach my $page (keys %pagesources) {
-			istranslation($page);
-		}
-	}
+	buildtranslationscache();
 
 	# make existing translations depend on the corresponding master page
 	foreach my $master (keys %translations) {
@@ -226,6 +228,41 @@ sub needsbuild () { #{{{
 	}
 } #}}}
 
+sub scan (@) { #{{{
+	my %params=@_;
+	my $page=$params{page};
+	my $content=$params{content};
+
+	return unless UNIVERSAL::can("IkiWiki::Plugin::link", "import");
+
+	if (istranslation($page)) {
+		my ($masterpage, $curlang) = ($page =~ /(.*)[.]([a-z]{2})$/);
+		foreach my $destpage (@{$links{$page}}) {
+			if (istranslatable($destpage)) {
+				# replace one occurence of $destpage in $links{$page}
+				# (we only want to replace the one that was added by
+				# IkiWiki::Plugin::link::scan, other occurences may be
+				# there for other reasons)
+				for (my $i=0; $i<@{$links{$page}}; $i++) {
+					if (@{$links{$page}}[$i] eq $destpage) {
+						@{$links{$page}}[$i] = $destpage . '.' . $curlang;
+						last;
+					}
+				}
+			}
+		}
+	}
+	elsif (! istranslatable($page) && ! istranslation($page)) {
+		foreach my $destpage (@{$links{$page}}) {
+			if (istranslatable($destpage)) {
+				map {
+					push @{$links{$page}}, $destpage . '.' . $_;
+				} (keys %{$config{po_slave_languages}});
+			}
+		}
+	}
+} #}}}
+
 sub mytargetpage ($$) { #{{{
 	my $page=shift;
 	my $ext=shift;
@@ -252,9 +289,10 @@ sub mytargetpage ($$) { #{{{
 
 sub mybeautify_urlpath ($) { #{{{
 	my $url=shift;
+
 	my $res=$origsubs{'beautify_urlpath'}->($url);
 	if ($config{po_link_to} eq "negotiated") {
-		$res =~ s!/index.$config{po_master_language}{code}.$config{htmlext}$!/!;
+		$res =~ s!/\Qindex.$config{po_master_language}{code}.$config{htmlext}\E$!/!;
 	}
 	return $res;
 } #}}}
@@ -270,9 +308,26 @@ sub urlto_with_orig_beautiful_urlpath($$) { #{{{
 	return $res;
 } #}}}
 
+sub myurlto ($$;$) { #{{{
+	my $to=shift;
+	my $from=shift;
+	my $absolute=shift;
+
+	# workaround hard-coded /index.$config{htmlext} in IkiWiki::urlto()
+	if (! length $to
+	    && $config{po_link_to} eq "current"
+	    && istranslation($from)
+	    && istranslatable('index')) {
+		my ($masterpage, $curlang) = ($from =~ /(.*)[.]([a-z]{2})$/);
+		return IkiWiki::beautify_urlpath(IkiWiki::baseurl($from) . "index." . $curlang . ".$config{htmlext}");
+	}
+	return $origsubs{'urlto'}->($to,$from,$absolute);
+} #}}}
+
 sub mybestlink ($$) { #{{{
 	my $page=shift;
 	my $link=shift;
+
 	my $res=$origsubs{'bestlink'}->($page, $link);
 	if (length $res) {
 		if ($config{po_link_to} eq "current"
@@ -288,25 +343,64 @@ sub mybestlink ($$) { #{{{
 	return "";
 } #}}}
 
+sub alreadyfiltered($$) { #{{{
+	my $page=shift;
+	my $destpage=shift;
+
+	return ( exists $filtered{$page}{$destpage}
+		 && $filtered{$page}{$destpage} eq 1 );
+} #}}}
+sub setalreadyfiltered($$) { #{{{
+	my $page=shift;
+	my $destpage=shift;
+
+	$filtered{$page}{$destpage}=1;
+} #}}}
+sub unsetalreadyfiltered($$) { #{{{
+	my $page=shift;
+	my $destpage=shift;
+
+	if (exists $filtered{$page}{$destpage}) {
+		delete $filtered{$page}{$destpage};
+	}
+} #}}}
+sub resetalreadyfiltered() { #{{{
+	undef %filtered;
+} #}}}
+
 # We use filter to convert PO to the master page's format,
 # since the rest of ikiwiki should not work on PO files.
 sub filter (@) { #{{{
 	my %params = @_;
+
 	my $page = $params{page};
 	my $destpage = $params{destpage};
 	my $content = decode_utf8(encode_utf8($params{content}));
 
 	return $content if ( ! istranslation($page)
-			     || ( exists $filtered{$page}{$destpage}
-				  && $filtered{$page}{$destpage} eq 1 ));
+			     || alreadyfiltered($page, $destpage) );
 
 	# CRLF line terminators make poor Locale::Po4a feel bad
 	$content=~s/\r\n/\n/g;
 
-	# Locale::Po4a needs an input file, and I'm too lazy to learn
-	# how to disguise a variable as a file
-	my $infile = File::Temp->new(TEMPLATE => "ikiwiki-po-filter-in.XXXXXXXXXX",
-				     TMPDIR => 1)->filename;
+	# Implementation notes
+	#
+	# 1. Locale::Po4a reads/writes from/to files, and I'm too lazy
+	#    to learn how to disguise a variable as a file.
+	# 2. There are incompatibilities between some File::Temp versions
+	#    (including 0.18, bundled with Lenny's perl-modules package)
+	#    and others (e.g. 0.20, previously present in the archive as
+	#    a standalone package): under certain circumstances, some
+	#    return a relative filename, whereas others return an absolute one;
+	#    we here use this module in a way that is at least compatible
+	#    with 0.18 and 0.20. Beware, hit'n'run refactorers!
+	my $infile = new File::Temp(TEMPLATE => "ikiwiki-po-filter-in.XXXXXXXXXX",
+				    DIR => File::Spec->tmpdir,
+				    UNLINK => 1)->filename;
+	my $outfile = new File::Temp(TEMPLATE => "ikiwiki-po-filter-out.XXXXXXXXXX",
+				     DIR => File::Spec->tmpdir,
+				     UNLINK => 1)->filename;
+
 	writefile(basename($infile), File::Spec->tmpdir, $content);
 
 	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
@@ -315,25 +409,30 @@ sub filter (@) { #{{{
 	push @pos,$infile;
 	push @masters,$masterfile;
 	my %options = (
-			"markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
-			);
+		"markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
+	);
 	my $doc=Locale::Po4a::Chooser::new('text',%options);
 	$doc->process(
 		'po_in_name'	=> \@pos,
 		'file_in_name'	=> \@masters,
 		'file_in_charset'  => 'utf-8',
 		'file_out_charset' => 'utf-8',
-	) or error("[po/filter:$infile]: failed to translate");
-	my $tmpout = File::Temp->new(TEMPLATE => "ikiwiki-po-filter-out.XXXXXXXXXX",
-				     TMPDIR => 1)->filename;
-	$doc->write($tmpout) or error("[po/filter:$infile] could not write $tmpout");
-	$content = readfile($tmpout) or error("[po/filter:$infile] could not read $tmpout");
-	$filtered{$page}{$destpage}=1;
+	) or error("[po/filter:$page]: failed to translate");
+	$doc->write($outfile) or error("[po/filter:$page] could not write $outfile");
+	$content = readfile($outfile) or error("[po/filter:$page] could not read $outfile");
+
+	# Unlinking should happen automatically, thanks to File::Temp,
+	# but it does not work here, probably because of the way writefile()
+	# and Locale::Po4a::write() work.
+	unlink $infile, $outfile;
+
+	setalreadyfiltered($page, $destpage);
 	return $content;
 } #}}}
 
 sub htmlize (@) { #{{{
 	my %params=@_;
+
 	my $page = $params{page};
 	my $content = $params{content};
 	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
@@ -345,7 +444,8 @@ sub htmlize (@) { #{{{
 
 sub percenttranslated ($) { #{{{
 	my $page=shift;
-	return "N/A" unless (istranslation($page));
+
+	return gettext("N/A") unless (istranslation($page));
 	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
 	my $file=srcfile($pagesources{$page});
 	my $masterfile = srcfile($pagesources{$masterpage});
@@ -353,21 +453,22 @@ sub percenttranslated ($) { #{{{
 	push @pos,$file;
 	push @masters,$masterfile;
 	my %options = (
-			"markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
-			);
+		"markdown" => (pagetype($masterfile) eq 'mdwn') ? 1 : 0,
+	);
 	my $doc=Locale::Po4a::Chooser::new('text',%options);
 	$doc->process(
 		'po_in_name'	=> \@pos,
 		'file_in_name'	=> \@masters,
 		'file_in_charset'  => 'utf-8',
 		'file_out_charset' => 'utf-8',
-	) or error("[po/percenttranslated:$file]: failed to translate");
+	) or error("[po/percenttranslated:$page]: failed to translate");
 	my ($percent,$hit,$queries) = $doc->stats();
 	return $percent;
 } #}}}
 
 sub otherlanguages ($) { #{{{
 	my $page=shift;
+
 	my @ret;
 	if (istranslatable($page)) {
 		foreach my $lang (sort keys %{$translations{$page}}) {
@@ -405,6 +506,7 @@ sub pagetemplate (@) { #{{{
 	my $page=$params{page};
 	my $destpage=$params{destpage};
 	my $template=$params{template};
+
 	my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/) if istranslation($page);
 
 	if (istranslation($page) && $template->query(name => "percenttranslated")) {
@@ -426,7 +528,7 @@ sub pagetemplate (@) { #{{{
 		elsif (istranslation($page)) {
 			add_depends($page, $masterpage);
 			foreach my $translation (values %{$translations{$masterpage}}) {
-				add_depends($page, $translation);
+				add_depends($page, $translation) unless $page eq $translation;
 			}
 		}
 	}
@@ -447,7 +549,9 @@ sub pagetemplate (@) { #{{{
 							linktext => gettext("Discussion"),
 							));
 	}
-	# remove broken parentlink to ./index.html on home page's translations
+	# Remove broken parentlink to ./index.html on home page's translations.
+	# It works because this hook has the "last" parameter set, to ensure it
+	# runs after parentlinks' own pagetemplate hook.
 	if ($template->param('parentlinks')
 	    && istranslation($page)
 	    && $masterpage eq "index") {
@@ -455,18 +559,68 @@ sub pagetemplate (@) { #{{{
 	}
 } # }}}
 
+sub change(@) { #{{{
+	my @rendered=@_;
+
+	my $updated_po_files=0;
+
+	# Refresh/create POT and PO files as needed.
+	foreach my $page (map pagename($_), @rendered) {
+		next unless istranslatable($page);
+		my $file=srcfile($pagesources{$page});
+		my $updated_pot_file=0;
+		# Only refresh Pot file if it does not exist, or if
+		# $pagesources{$page} was changed: don't if only the HTML was
+		# refreshed, e.g. because of a dependency.
+		if ((grep { $_ eq $pagesources{$page} } @origneedsbuild)
+		    || ! -e potfile($file)) {
+			refreshpot($file);
+			$updated_pot_file=1;
+		}
+		my @pofiles;
+		foreach my $lang (keys %{$config{po_slave_languages}}) {
+			my $pofile=pofile($file, $lang);
+			if ($updated_pot_file || ! -e $pofile) {
+				push @pofiles, $pofile;
+			}
+		}
+		if (@pofiles) {
+			refreshpofiles($file, @pofiles);
+			map { IkiWiki::rcs_add($_); } @pofiles if ($config{rcs});
+			$updated_po_files=1;
+		}
+	}
+
+	if ($updated_po_files) {
+		# Check staged changes in.
+		if ($config{rcs}) {
+			IkiWiki::disable_commit_hook();
+			IkiWiki::rcs_commit_staged(gettext("updated PO files"),
+				"IkiWiki::Plugin::po::change", "127.0.0.1");
+			IkiWiki::enable_commit_hook();
+			IkiWiki::rcs_update();
+		}
+		# Reinitialize module's private variables.
+		resetalreadyfiltered();
+		resettranslationscache();
+		# Trigger a wiki refresh.
+		require IkiWiki::Render;
+		IkiWiki::refresh();
+		IkiWiki::saveindex();
+	}
+} #}}}
+
 sub editcontent () { #{{{
 	my %params=@_;
 	# as we're previewing or saving a page, the content may have
 	# changed, so tell the next filter() invocation it must not be lazy
-	if (exists $filtered{$params{page}}{$params{page}}) {
-		delete $filtered{$params{page}}{$params{page}};
-	}
+	unsetalreadyfiltered($params{page}, $params{page});
 	return $params{content};
 } #}}}
 
 sub istranslatable ($) { #{{{
 	my $page=shift;
+
 	my $file=$pagesources{$page};
 
 	if (! defined $file
@@ -479,6 +633,7 @@ sub istranslatable ($) { #{{{
 
 sub _istranslation ($) { #{{{
 	my $page=shift;
+
 	my $file=$pagesources{$page};
 	if (! defined $file) {
 		return IkiWiki::FailReason->new("no file specified");
@@ -504,6 +659,7 @@ sub _istranslation ($) { #{{{
 
 sub istranslation ($) { #{{{
 	my $page=shift;
+
 	if (_istranslation($page)) {
 		my ($masterpage, $lang) = ($page =~ /(.*)[.]([a-z]{2})$/);
 		$translations{$masterpage}{$lang}=$page unless exists $translations{$masterpage}{$lang};
@@ -519,6 +675,7 @@ use IkiWiki 2.00;
 
 sub match_istranslation ($;@) { #{{{
 	my $page=shift;
+
 	if (IkiWiki::Plugin::po::istranslation($page)) {
 		return IkiWiki::SuccessReason->new("is a translation page");
 	}
@@ -529,6 +686,7 @@ sub match_istranslation ($;@) { #{{{
 
 sub match_istranslatable ($;@) { #{{{
 	my $page=shift;
+
 	if (IkiWiki::Plugin::po::istranslatable($page)) {
 		return IkiWiki::SuccessReason->new("is set as translatable in po_translatable_pages");
 	}
@@ -540,6 +698,7 @@ sub match_istranslatable ($;@) { #{{{
 sub match_lang ($$;@) { #{{{
 	my $page=shift;
 	my $wanted=shift;
+
 	my $regexp=IkiWiki::glob2re($wanted);
 	my $lang;
 	my $masterpage;
@@ -561,6 +720,7 @@ sub match_lang ($$;@) { #{{{
 
 sub match_currentlang ($$;@) { #{{{
 	my $page=shift;
+
 	shift;
 	my %params=@_;
 	my ($currentmasterpage, $currentlang, $masterpage, $lang);