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doc/html: support texinfo 7.0
Resolves trac ticket #10636 (http://trac.ffmpeg.org/ticket/10636). Texinfo 7.0, released in November 2022, changed the names of various functions. Compiling docs with Texinfo 7.0 resulted in warnings and improperly formatted documentation. More old names appear to have been removed in Texinfo 7.1, released October 2023, which causes docs compilation to fail. This commit addresses the issue by adding logic to switch between the old and new function names depending on the Texinfo version. Texinfo 6.8 produces identical documentation before and after the patch. CC https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1938238.html https://bugs.gentoo.org/916104 Signed-off-by: Frank Plowman <post@frankplowman.com>
This commit is contained in:
Frank Plowman
Stefano Sabatini
parent
2b4035d1dc
commit
f01fdedb69
106
doc/t2h.pm
106
doc/t2h.pm
@ -20,8 +20,45 @@
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# License along with FFmpeg; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Texinfo 7.0 changed the syntax of various functions.
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# Provide a shim for older versions.
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sub ff_set_from_init_file($$) {
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my $key = shift;
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my $value = shift;
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if (exists &{'texinfo_set_from_init_file'}) {
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texinfo_set_from_init_file($key, $value);
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} else {
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set_from_init_file($key, $value);
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}
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}
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sub ff_get_conf($) {
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my $key = shift;
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if (exists &{'texinfo_get_conf'}) {
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texinfo_get_conf($key);
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} else {
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get_conf($key);
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}
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}
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sub get_formatting_function($$) {
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my $obj = shift;
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my $func = shift;
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my $sub = $obj->can('formatting_function');
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if ($sub) {
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return $obj->formatting_function($func);
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} else {
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return $obj->{$func};
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}
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}
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# determine texinfo version
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my $program_version_num = version->declare(ff_get_conf('PACKAGE_VERSION'))->numify;
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my $program_version_6_8 = $program_version_num >= 6.008000;
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# no navigation elements
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set_from_init_file('HEADERS', 0);
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ff_set_from_init_file('HEADERS', 0);
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sub ffmpeg_heading_command($$$$$)
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{
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@ -55,7 +92,7 @@ sub ffmpeg_heading_command($$$$$)
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$element = $command->{'parent'};
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}
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if ($element) {
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$result .= &{$self->{'format_element_header'}}($self, $cmdname,
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$result .= &{get_formatting_function($self, 'format_element_header')}($self, $cmdname,
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$command, $element);
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}
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@ -112,7 +149,11 @@ sub ffmpeg_heading_command($$$$$)
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$cmdname
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= $Texinfo::Common::level_to_structuring_command{$cmdname}->[$heading_level];
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}
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$result .= &{$self->{'format_heading_text'}}(
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# format_heading_text expects an array of headings for texinfo >= 7.0
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if ($program_version_num >= 7.000000) {
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$heading = [$heading];
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}
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$result .= &{get_formatting_function($self,'format_heading_text')}(
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$self, $cmdname, $heading,
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$heading_level +
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$self->get_conf('CHAPTER_HEADER_LEVEL') - 1, $command);
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@ -126,23 +167,19 @@ foreach my $command (keys(%Texinfo::Common::sectioning_commands), 'node') {
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texinfo_register_command_formatting($command, \&ffmpeg_heading_command);
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}
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# determine if texinfo is at least version 6.8
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my $program_version_num = version->declare(get_conf('PACKAGE_VERSION'))->numify;
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my $program_version_6_8 = $program_version_num >= 6.008000;
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# print the TOC where @contents is used
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if ($program_version_6_8) {
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set_from_init_file('CONTENTS_OUTPUT_LOCATION', 'inline');
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ff_set_from_init_file('CONTENTS_OUTPUT_LOCATION', 'inline');
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} else {
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set_from_init_file('INLINE_CONTENTS', 1);
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ff_set_from_init_file('INLINE_CONTENTS', 1);
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}
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# make chapters <h2>
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set_from_init_file('CHAPTER_HEADER_LEVEL', 2);
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ff_set_from_init_file('CHAPTER_HEADER_LEVEL', 2);
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# Do not add <hr>
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set_from_init_file('DEFAULT_RULE', '');
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set_from_init_file('BIG_RULE', '');
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ff_set_from_init_file('DEFAULT_RULE', '');
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ff_set_from_init_file('BIG_RULE', '');
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# Customized file beginning
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sub ffmpeg_begin_file($$$)
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@ -159,7 +196,18 @@ sub ffmpeg_begin_file($$$)
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my ($title, $description, $encoding, $date, $css_lines,
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$doctype, $bodytext, $copying_comment, $after_body_open,
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$extra_head, $program_and_version, $program_homepage,
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$program, $generator) = $self->_file_header_informations($command);
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$program, $generator);
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if ($program_version_num >= 7.000000) {
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($title, $description, $encoding, $date, $css_lines,
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$doctype, $bodytext, $copying_comment, $after_body_open,
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$extra_head, $program_and_version, $program_homepage,
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$program, $generator) = $self->_file_header_information($command);
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} else {
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($title, $description, $encoding, $date, $css_lines,
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$doctype, $bodytext, $copying_comment, $after_body_open,
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$extra_head, $program_and_version, $program_homepage,
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$program, $generator) = $self->_file_header_informations($command);
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}
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my $links = $self->_get_links ($filename, $element);
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@ -223,7 +271,7 @@ if ($program_version_6_8) {
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sub ffmpeg_end_file($)
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{
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my $self = shift;
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my $program_string = &{$self->{'format_program_string'}}($self);
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my $program_string = &{get_formatting_function($self,'format_program_string')}($self);
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my $program_text = <<EOT;
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<p style="font-size: small;">
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$program_string
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@ -244,7 +292,7 @@ if ($program_version_6_8) {
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# Dummy title command
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# Ignore title. Title is handled through ffmpeg_begin_file().
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set_from_init_file('USE_TITLEPAGE_FOR_TITLE', 1);
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ff_set_from_init_file('USE_TITLEPAGE_FOR_TITLE', 1);
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sub ffmpeg_title($$$$)
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{
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return '';
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@ -262,8 +310,14 @@ sub ffmpeg_float($$$$$)
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my $args = shift;
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my $content = shift;
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my ($caption, $prepended) = Texinfo::Common::float_name_caption($self,
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$command);
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my ($caption, $prepended);
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if ($program_version_num >= 7.000000) {
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($caption, $prepended) = Texinfo::Convert::Converter::float_name_caption($self,
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$command);
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} else {
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($caption, $prepended) = Texinfo::Common::float_name_caption($self,
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$command);
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}
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my $caption_text = '';
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my $prepended_text;
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my $prepended_save = '';
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@ -335,8 +389,13 @@ sub ffmpeg_float($$$$$)
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$caption->{'args'}->[0], 'float caption');
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}
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if ($prepended_text.$caption_text ne '') {
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$prepended_text = $self->_attribute_class('div','float-caption'). '>'
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. $prepended_text;
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if ($program_version_num >= 7.000000) {
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$prepended_text = $self->html_attribute_class('div',['float-caption']). '>'
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. $prepended_text;
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} else {
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$prepended_text = $self->_attribute_class('div','float-caption'). '>'
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. $prepended_text;
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}
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$caption_text .= '</div>';
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}
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my $html_class = '';
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@ -349,8 +408,13 @@ sub ffmpeg_float($$$$$)
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$prepended_text = '';
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$caption_text = '';
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}
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return $self->_attribute_class('div', $html_class). '>' . "\n" .
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$prepended_text . $caption_text . $content . '</div>';
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if ($program_version_num >= 7.000000) {
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return $self->html_attribute_class('div', [$html_class]). '>' . "\n" .
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$prepended_text . $caption_text . $content . '</div>';
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} else {
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return $self->_attribute_class('div', $html_class). '>' . "\n" .
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$prepended_text . $caption_text . $content . '</div>';
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}
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}
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texinfo_register_command_formatting('float',
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