tag 440946 + patch reassign 423168 perl-modules forcemerge 440946 423168 thanks
Attached a patch for lib/Pod/Html.pm that fixes all issues mentioned in the original report and does some minor related code cleanup. Test case is now xmllint clean and generated html renders correctly. NOTE: this patch includes the fix for #423168, therefore merging the BRs. I have tested the patch fairly extensively, including: - consecutive =item paras for the same definition - unclosed lists at the end of sections and the document I've also run it on the pod files in perl-5.8.8/pod and compared old and new output. I have seen no unexpected changes. Although the patch may look fairly big, the changes are IMO not very invasive and the new algorithm seems a lot cleaner and maintainable. Details of the patch - <dd> tags are now generated in the same way as <li> tags; the <dt> term is now processed as a kind of introduction to a <dd> definition - we no longer generate redundant </dd><dd> pairs within a definition if the definition contains more Lpars; again similar to <li> - printing <dd> tags is delayed in case there are multiple consecutive terms (=item); this results in same behavior as in old code Related cleanup - handle "open lists" at the end of a section (process_head) and end of a document (pod2html) the same way and the same for all list types using finish_list function; in the old code this was inconsistent Coding details - $need_dd and $After_Lpar flags are no longer needed and thus removed - @Listend generalized to @Listtype consistent with new usage - function emit_li renamed to new_listitem to better reflect extended functionality - emit_li returned $emitted but that was not actually used, so dropped Cheers, FJP
--- perl-5.8.8/lib/Pod/Html.pm.orig 2006-12-05 12:52:37.000000000 +0100
+++ perl-5.8.8/lib/Pod/Html.pm 2007-09-05 23:20:30.000000000 +0200
@@ -232,8 +232,8 @@
my $Doindex;
my $Backlink;
-my($Listlevel, @Listend);
-my $After_Lpar;
+my($Listlevel, @Listtype);
+my $ListNewTerm;
use vars qw($Ignore); # need to localize it later.
my(%Items_Named, @Items_Seen);
@@ -273,7 +273,7 @@
$Htmldir = ""; # The directory to which the html pages
# will (eventually) be written.
$Htmlfile = ""; # write to stdout by default
- $Htmlfileurl = "" ; # The url that other files would use to
+ $Htmlfileurl = ""; # The url that other files would use to
# refer to this file. This is only used
# to make relative urls that point to
# other files.
@@ -289,8 +289,9 @@
$Doindex = 1; # non-zero if we should generate an index
$Backlink = ''; # text for "back to top" links
$Listlevel = 0; # current list depth
- @Listend = (); # the text to use to end the list.
- $After_Lpar = 0; # set to true after a par in an =item
+ @Listtype = (); # list types for open lists
+ $ListNewTerm = 0; # indicates new term in definition list; used
+ # to correctly open/close <dd> tags
$Ignore = 1; # whether or not to format text. we don't
# format text until we hit our first pod
# directive.
@@ -495,7 +496,6 @@
# now convert this file
my $after_item; # set to true after an =item
- my $need_dd = 0;
warn "Converting input file $Podfile\n" if $Verbose;
foreach my $i (0..$#poddata){
$PTQuote = 0; # status of quote conversion
@@ -505,7 +505,6 @@
if (/^(=.*)/s) { # is it a pod directive?
$Ignore = 0;
$after_item = 0;
- $need_dd = 0;
$_ = $1;
if (/^=begin\s+(\S+)\s*(.*)/si) {# =begin
process_begin($1, $2);
@@ -521,12 +520,12 @@
if (/^=(head[1-6])\s+(.*\S)/s) { # =head[1-6] heading
process_head( $1, $2, $Doindex && $index );
} elsif (/^=item\s*(.*\S)?/sm) { # =item text
- $need_dd = process_item( $1 );
+ process_item( $1 );
$after_item = 1;
} elsif (/^=over\s*(.*)/) { # =over N
process_over();
} elsif (/^=back/) { # =back
- process_back($need_dd);
+ process_back();
} elsif (/^=for\s+(\S+)\s*(.*)/si) {# =for
process_for($1,$2);
} else {
@@ -541,8 +540,14 @@
next if $Ignore;
next if @Begin_Stack && $Begin_Stack[-1] ne 'html';
print HTML and next if @Begin_Stack && $Begin_Stack[-1] eq 'html';
- print HTML "<dd>\n" if $need_dd;
my $text = $_;
+
+ # Open tag for definition list as we have something to put in it
+ if( $ListNewTerm ){
+ print HTML "<dd>\n";
+ $ListNewTerm = 0;
+ }
+
if( $text =~ /\A\s+/ ){
process_pre( \$text );
print HTML "<pre>\n$text</pre>\n";
@@ -572,12 +577,8 @@
}
## end of experimental
- if( $after_item ){
- $After_Lpar = 1;
- }
print HTML "<p>$text</p>\n";
}
- print HTML "</dd>\n" if $need_dd;
$after_item = 0;
}
}
@@ -1052,12 +1053,12 @@
# figure out what kind of item it is.
# Build string for referencing this item.
- if ( $txt =~ /\A=item\s+\*\s*(.*)\Z/s ) { # bullet
+ if ( $txt =~ /\A=item\s+\*\s*(.*)\Z/s ) { # bulleted list
next unless $1;
$item = $1;
} elsif( $txt =~ /\A=item\s+(?>\d+\.?)\s*(.*)\Z/s ) { # numbered list
$item = $1;
- } elsif( $txt =~ /\A=item\s+(.*)\Z/s ) { # plain item
+ } elsif( $txt =~ /\A=item\s+(.*)\Z/s ) { # definition list
$item = $1;
} else {
next;
@@ -1077,12 +1078,7 @@
$tag =~ /head([1-6])/;
my $level = $1;
- if( $Listlevel ){
- warn "$0: $Podfile: unterminated list at =head in paragraph $Paragraph. ignoring.\n" unless $Quiet;
- while( $Listlevel ){
- process_back();
- }
- }
+ finish_list();
print HTML "<p>\n";
if( $level == 1 && ! $Top ){
@@ -1120,19 +1116,32 @@
$name = anchorify($name);
print HTML qq{<a name="$name">}, process_text( \$otext ), '</a>';
}
- print HTML "</strong>\n";
+ print HTML "</strong>";
undef( $EmittedItem );
}
-sub emit_li {
+sub new_listitem {
my( $tag ) = @_;
+ # Open tag for definition list as we have something to put in it
+ if( ($tag ne 'dl') && ($ListNewTerm) ){
+ print HTML "<dd>\n";
+ $ListNewTerm = 0;
+ }
+
if( $Items_Seen[$Listlevel]++ == 0 ){
- push( @Listend, "</$tag>" );
+ # start of new list
+ push( @Listtype, "$tag" );
print HTML "<$tag>\n";
+ } else {
+ # if this is not the first item, close the previous one
+ if ( $tag eq 'dl' ){
+ print HTML "</dd>\n" unless $ListNewTerm;
+ } else {
+ print HTML "</li>\n";
+ }
}
- my $emitted = $tag eq 'dl' ? 'dt' : 'li';
- print HTML "<$emitted>";
- return $emitted;
+ my $opentag = $tag eq 'dl' ? 'dt' : 'li';
+ print HTML "<$opentag>";
}
#
@@ -1140,7 +1149,6 @@
#
sub process_item {
my( $otext ) = @_;
- my $need_dd = 0; # set to 1 if we need a <dd></dd> after an item
# lots of documents start a list without doing an =over. this is
# bad! but, the proper thing to do seems to be to just assume
@@ -1150,43 +1158,43 @@
process_over();
}
- # formatting: insert a paragraph if preceding item has >1 paragraph
- if( $After_Lpar ){
- print HTML $need_dd ? "</dd>\n" : "</li>\n" if $After_Lpar;
- $After_Lpar = 0;
- }
-
# remove formatting instructions from the text
my $text = depod( $otext );
- my $emitted; # the tag actually emitted, used for closing
-
# all the list variants:
if( $text =~ /\A\*/ ){ # bullet
- $emitted = emit_li( 'ul' );
+ new_listitem( 'ul' );
if ($text =~ /\A\*\s+(.+)\Z/s ) { # with additional text
my $tag = $1;
$otext =~ s/\A\*\s+//;
emit_item_tag( $otext, $tag, 1 );
+ print HTML "\n";
}
} elsif( $text =~ /\A\d+/ ){ # numbered list
- $emitted = emit_li( 'ol' );
+ new_listitem( 'ol' );
if ($text =~ /\A(?>\d+\.?)\s*(.+)\Z/s ) { # with additional text
my $tag = $1;
$otext =~ s/\A\d+\.?\s*//;
emit_item_tag( $otext, $tag, 1 );
+ print HTML "\n";
}
} else { # definition list
- $emitted = emit_li( 'dl' );
- if ($text =~ /\A(.+)\Z/s ){ # should have text
+ # new_listitem takes care of opening the <dt> tag
+ new_listitem( 'dl' );
+ if( $text =~ /\A(.+)\Z/s ){ # should have text
emit_item_tag( $otext, $text, 1 );
+ } else {
+ warn "$0: $Podfile: no term text provided for definition list in paragraph $Paragraph. ignoring.\n" unless $Quiet;
}
- $need_dd = 1;
+ # write the definition term and close <dt> tag
+ print HTML "</dt>\n";
+ # trigger opening a <dd> tag for the actual definition; will not
+ # happen if next paragraph is also a definition term (=item)
+ $ListNewTerm = 1;
}
print HTML "\n";
- return $need_dd;
}
#
@@ -1196,30 +1204,31 @@
# start a new list
$Listlevel++;
push( @Items_Seen, 0 );
- $After_Lpar = 0;
}
#
# process_back - process a pod back tag and convert it to HTML format.
#
sub process_back {
- my $need_dd = shift;
if( $Listlevel == 0 ){
warn "$0: $Podfile: unexpected =back directive in paragraph $Paragraph. ignoring.\n" unless $Quiet;
return;
}
- # close off the list. note, I check to see if $Listend[$Listlevel] is
+ # close off the list. note, I check to see if $Listtype[$Listlevel] is
# defined because an =item directive may have never appeared and thus
- # $Listend[$Listlevel] may have never been initialized.
+ # $Listtype[$Listlevel] may have never been initialized.
$Listlevel--;
- if( defined $Listend[$Listlevel] ){
- print HTML $need_dd ? "</dd>\n" : "</li>\n" if $After_Lpar;
- print HTML $Listend[$Listlevel];
- print HTML "\n";
- pop( @Listend );
+ if( defined $Listtype[$Listlevel] ){
+ if ( $Listtype[$Listlevel] eq 'dl' ){
+ print HTML "</dd>\n" unless $ListNewTerm;
+ } else {
+ print HTML "</li>\n";
+ }
+ print HTML "</$Listtype[$Listlevel]>\n";
+ pop( @Listtype );
+ $ListNewTerm = 0;
}
- $After_Lpar = 0;
# clean up item count
pop( @Items_Seen );
@@ -1964,9 +1973,11 @@
# after the entire pod file has been read and converted.
#
sub finish_list {
- while ($Listlevel > 0) {
- print HTML "</dl>\n";
- $Listlevel--;
+ if( $Listlevel ){
+ warn "$0: $Podfile: unterminated list(s) at =head in paragraph $Paragraph. ignoring.\n" unless $Quiet;
+ while( $Listlevel ){
+ process_back();
+ }
}
}
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