/usr/lib/x86_64-linux-gnu/glibmm-2.4/proc/pm/DocsParser.pm is in libglibmm-2.4-dev 2.42.0-1.
This file is owned by root:root, with mode 0o644.
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#
# Copyright 2001 Free Software Foundation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
# Based on XML::Parser tutorial found at http://www.devshed.com/Server_Side/Perl/PerlXML/PerlXML1/page1.html
# This module isn't properly Object Orientated because the XML Parser needs global callbacks.
package DocsParser;
use XML::Parser;
use strict;
use warnings;
# use Util;
use Function;
use GtkDefs;
use Object;
BEGIN {
use Exporter ();
our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
# set the version for version checking
$VERSION = 1.00;
@ISA = qw(Exporter);
@EXPORT = ( );
%EXPORT_TAGS = ( );
# your exported package globals go here,
# as well as any optionally exported functions
@EXPORT_OK = ( );
}
our @EXPORT_OK;
#####################################
use strict;
use warnings;
#####################################
$DocsParser::CurrentFile = "";
$DocsParser::refAppendTo = undef; # string reference to store the data into
$DocsParser::currentParam = undef;
$DocsParser::objCurrentFunction = undef; #Function
%DocsParser::hasharrayFunctions = (); #Function elements
#~ $DocsParser::bOverride = 0; #First we parse the C docs, then we parse the C++ override docs.
$DocsParser::commentStart = " /** ";
$DocsParser::commentMiddleStart = " * ";
$DocsParser::commentEnd = " */";
sub read_defs($$$)
{
my ($path, $filename, $filename_override) = @_;
my $objParser = new XML::Parser(ErrorContext => 0);
$objParser->setHandlers(Start => \&parse_on_start, End => \&parse_on_end, Char => \&parse_on_cdata);
# C documentation:
$DocsParser::CurrentFile = "$path/$filename";
if ( ! -r $DocsParser::CurrentFile)
{
print STDERR "DocsParser.pm: Warning: Can't read file \"" . $DocsParser::CurrentFile . "\".\n";
return;
}
# Parse
eval { $objParser->parsefile($DocsParser::CurrentFile) };
if( $@ )
{
$@ =~ s/at \/.*?$//s;
print STDERR "\nError in \"" . $DocsParser::CurrentFile . "\":$@\n";
return;
}
# C++ overide documentation:
$DocsParser::CurrentFile = $path . '/' . $filename_override;
# It is not an error if the documentation override file does not exist.
return unless (-r $DocsParser::CurrentFile);
# Parse
eval { $objParser->parsefile($DocsParser::CurrentFile) };
if( $@ )
{
$@ =~ s/at \/.*?$//s;
print STDERR "\nError in \"" . $DocsParser::CurrentFile . "\":$@";
return;
}
}
sub parse_on_start($$%)
{
my ($objParser, $tag, %attr) = @_;
$tag = lc($tag);
if($tag eq "function" or $tag eq "signal" or $tag eq "enum")
{
if(defined $DocsParser::objCurrentFunction)
{
$objParser->xpcroak(
"\nClose a function, signal or enum tag before you open another one.");
}
my $functionName = $attr{name};
# Change signal name from Class::a-signal-name to Class::a_signal_name.
$functionName =~ s/-/_/g if($tag eq "signal");
#Reuse existing Function, if it exists:
#(For instance, if this is the override parse)
$DocsParser::objCurrentFunction = $DocsParser::hasharrayFunctions{$functionName};
if(!$DocsParser::objCurrentFunction)
{
#Make a new one if necessary:
$DocsParser::objCurrentFunction = Function::new_empty();
# The idea is to change the policy a bit:
# If a function is redefined in a later parsing run only values which are redefined
# will be overwritten. For the name this is trivial. The description is simply rewritten.
# Same goes for the return description and the class mapping. Only exception is the
# parameter list. Everytime we enter a <parameters> tag the list is emptied again.
$$DocsParser::objCurrentFunction{name} = $functionName;
$$DocsParser::objCurrentFunction{description} = "";
$$DocsParser::objCurrentFunction{param_names} = [];
$$DocsParser::objCurrentFunction{param_descriptions} = ();
$$DocsParser::objCurrentFunction{return_description} = "";
$$DocsParser::objCurrentFunction{mapped_class} = "";
# We don't need this any more, the only reference to this field is commented
# $$DocsParser::objCurrentFunction{description_overridden} = $DocsParser::bOverride;
}
}
elsif($tag eq "parameters")
{
$$DocsParser::objCurrentFunction{param_names} = [];
$$DocsParser::objCurrentFunction{param_descriptions} = ();
}
elsif($tag eq "parameter")
{
$DocsParser::currentParam = $attr{name};
$$DocsParser::objCurrentFunction{param_descriptions}->{$DocsParser::currentParam} = "";
}
elsif($tag eq "description")
{
$$DocsParser::objCurrentFunction{description} = "";
# Set destination for parse_on_cdata().
$DocsParser::refAppendTo = \$$DocsParser::objCurrentFunction{description};
}
elsif($tag eq "parameter_description")
{
# Set destination for parse_on_cdata().
my $param_desc = \$$DocsParser::objCurrentFunction{param_descriptions};
$DocsParser::refAppendTo = \$$param_desc->{$DocsParser::currentParam};
}
elsif($tag eq "return")
{
$$DocsParser::objCurrentFunction{return_description} = "";
# Set destination for parse_on_cdata().
$DocsParser::refAppendTo = \$$DocsParser::objCurrentFunction{return_description};
}
elsif($tag eq "mapping")
{
$$DocsParser::objCurrentFunction{mapped_class} = $attr{class};
}
elsif($tag ne "root")
{
$objParser->xpcroak("\nUnknown tag \"$tag\".");
}
}
sub parse_on_end($$)
{
my ($parser, $tag) = @_;
# Clear destination for parse_on_cdata().
$DocsParser::refAppendTo = undef;
$tag = lc($tag);
if($tag eq "function" or $tag eq "signal" or $tag eq "enum")
{
# Store the Function structure in the array:
my $functionName = $$DocsParser::objCurrentFunction{name};
$DocsParser::hasharrayFunctions{$functionName} = $DocsParser::objCurrentFunction;
$DocsParser::objCurrentFunction = undef;
}
elsif($tag eq "parameter")
{
# <parameter name="returns"> and <return> means the same.
if($DocsParser::currentParam eq "returns")
{
my $param_descriptions = \$$DocsParser::objCurrentFunction{param_descriptions};
my $return_description = \$$DocsParser::objCurrentFunction{return_description};
$$return_description = delete $$param_descriptions->{"returns"};
}
else
{
# Append to list of parameters.
push(@{$$DocsParser::objCurrentFunction{param_names}}, $DocsParser::currentParam);
}
$DocsParser::currentParam = undef;
}
}
sub parse_on_cdata($$)
{
my ($parser, $data) = @_;
if(defined $DocsParser::refAppendTo)
{
# Dispatch $data to the current destination string.
$$DocsParser::refAppendTo .= $data;
}
}
sub lookup_enum_documentation($$$)
{
my ($c_enum_name, $cpp_enum_name, $ref_flags) = @_;
my @subst_in = [];
my @subst_out = [];
# Get the substitutions.
foreach(@$ref_flags)
{
if(/^\s*s#([^#]+)#([^#]*)#\s*$/)
{
push(@subst_in, $1);
push(@subst_out, $2);
}
}
my $objFunction = $DocsParser::hasharrayFunctions{$c_enum_name};
if(!$objFunction)
{
#print "DocsParser.pm: Warning: enum not found: $enum_name\n";
return ""
}
my $docs = "";
my @param_names = @{$$objFunction{param_names}};
my $param_descriptions = \$$objFunction{param_descriptions};
# Append the param docs first so that the enum description can come last and
# the possible flag docs that the m4 _ENUM() macro appends goes in the right
# place.
foreach my $param (@param_names)
{
my $desc = $$param_descriptions->{$param};
# Remove the initial prefix in the name of the enum constant. Would be something like GTK_.
$param =~ s/\b[A-Z]+_//;
# Now apply custom substitutions.
for(my $i = 0; $i < scalar(@subst_in); ++$i)
{
$param =~ s/${subst_in[$i]}/${subst_out[$i]}/;
$desc =~ s/${subst_in[$i]}/${subst_out[$i]}/;
}
# Skip this element, if its name has been deleted.
next if($param eq "");
$param =~ s/([a-zA-Z0-9]*(_[a-zA-Z0-9]+)*)_?/$1/g;
if(length($desc) > 0)
{
$desc =~ s/\n/ /g;
$desc =~ s/ $//;
$desc =~ s/^\s+//; # Chop off leading whitespace
$desc .= '.' unless($desc =~ /(?:^|\.)$/);
$docs .= "\@var $cpp_enum_name ${param}\n \u${desc}\n\n"; # \u = Convert next char to uppercase
}
}
# Append the enum description docs.
$docs .= "\@enum $cpp_enum_name\n";
$docs .= $$objFunction{description};
DocsParser::convert_docs_to_cpp($objFunction, \$docs);
DocsParser::add_m4_quotes(\$docs);
# Escape the space after "i.e." or "e.g." in the brief description.
$docs =~ s/^([^.]*\b(?:i\.e\.|e\.g\.))\s/$1\\ /;
remove_example_code($c_enum_name, \$docs);
# Convert to Doxygen-style comment.
$docs =~ s/\n/\n \* /g;
$docs = "\/\*\* " . $docs;
return $docs;
}
# $strCommentBlock lookup_documentation($strFunctionName, $deprecation_docs, $objCppfunc)
# The final objCppfunc parameter is optional. If passed, it is used to
# decide if the final C parameter should be omitted if the C++ method
# has a slot parameter.
sub lookup_documentation($$;$)
{
my ($functionName, $deprecation_docs, $objCppfunc) = @_;
my $objFunction = $DocsParser::hasharrayFunctions{$functionName};
if(!$objFunction)
{
#print "DocsParser.pm: Warning: function not found: $functionName\n";
return ""
}
my $text = $$objFunction{description};
if(length($text) eq 0)
{
print "DocsParser.pm: Warning: No C docs for: \"$functionName\"\n";
}
DocsParser::convert_docs_to_cpp($objFunction, \$text);
# A blank line, marking the end of a paragraph, is needed after @newin.
# Most @newins are at the end of a function description.
$text .= "\n";
#Add note about deprecation if we have specified that in our _WRAP_METHOD() call:
if($deprecation_docs ne "")
{
$text .= "\n\@deprecated $deprecation_docs\n";
}
DocsParser::append_parameter_docs($objFunction, \$text, $objCppfunc);
DocsParser::append_return_docs($objFunction, \$text);
DocsParser::add_m4_quotes(\$text);
# Escape the space after "i.e." or "e.g." in the brief description.
$text =~ s/^([^.]*\b(?:i\.e\.|e\.g\.))\s/$1\\ /;
remove_example_code($functionName, \$text);
# Convert to Doxygen-style comment.
$text =~ s/\n/\n${DocsParser::commentMiddleStart}/g;
$text = $DocsParser::commentStart . $text;
$text .= "\n${DocsParser::commentEnd}\n";
return $text;
}
# void remove_example_code($obj_name, \$text)
# Removes example code from the text of docs (passed by reference).
sub remove_example_code($$)
{
my ($obj_name, $text) = @_;
# Remove C example code.
my $example_removals =
($$text =~ s"<informalexample>.*?</informalexample>"[C example ellipted]"sg);
$example_removals +=
($$text =~ s"<programlisting>.*?</programlisting>"\n[C example ellipted]"sg);
$example_removals += ($$text =~ s"\|\[.*?]\|"\n[C example ellipted]"sg);
print STDERR "gmmproc: $main::source: $obj_name: Example code discarded.\n"
if ($example_removals);
}
sub add_m4_quotes($)
{
my ($text) = @_;
# __BT__ and __FT__ are M4 macros defined in the base.m4 file that produce
# a "`" and a "'" resp. without M4 errors.
my %m4_quotes = (
"`" => "'__BT__`",
"'" => "'__FT__`",
);
$$text =~ s/([`'])/$m4_quotes{$1}/g;
$$text = "`" . $$text . "'";
}
# The final objCppfunc is optional. If passed, it is used to determine
# if the final C parameter should be omitted if the C++ method has a
# slot parameter.
sub append_parameter_docs($$;$)
{
my ($obj_function, $text, $objCppfunc) = @_;
my @param_names = @{$$obj_function{param_names}};
my $param_descriptions = \$$obj_function{param_descriptions};
# Strip first parameter if this is a method.
my $defs_method = GtkDefs::lookup_method_dont_mark($$obj_function{name});
# the second alternative is for use with method-mappings meaning:
# this function is mapped into this Gtk::class
shift(@param_names) if(($defs_method && $$defs_method{class} ne "") ||
($$obj_function{mapped_class} ne ""));
# Also skip first param if this is a signal.
shift(@param_names) if ($$obj_function{name} =~ /\w+::/);
# Skip the last param if there is a slot because it would be a
# gpointer user_data parameter.
pop(@param_names) if (defined($objCppfunc) && $$objCppfunc{slot_name});
foreach my $param (@param_names)
{
if ($param ne "error" ) #We wrap GErrors as exceptions, so ignore these.
{
my $desc = $$param_descriptions->{$param};
# Deal with callback parameters converting the docs to a slot
# compatible format.
if ($param eq "callback")
{
$param = "slot";
$$text =~ s/\@a callback/\@a slot/g;
}
$param =~ s/([a-zA-Z0-9]*(_[a-zA-Z0-9]+)*)_?/$1/g;
DocsParser::convert_docs_to_cpp($obj_function, \$desc);
if(length($desc) > 0)
{
$desc .= '.' unless($desc =~ /(?:^|\.)$/);
$$text .= "\n\@param ${param} \u${desc}";
}
}
}
}
sub append_return_docs($$)
{
my ($obj_function, $text) = @_;
my $desc = $$obj_function{return_description};
DocsParser::convert_docs_to_cpp($obj_function, \$desc);
$desc =~ s/\.$//;
$$text .= "\n\@return \u${desc}." unless($desc eq "");
}
sub convert_docs_to_cpp($$)
{
my ($obj_function, $text) = @_;
# Chop off leading and trailing whitespace.
$$text =~ s/^\s+//;
$$text =~ s/\s+$//;
# HagenM: this is the only reference to $$obj_function{description_overridden}
# and it seems not to be in use.
# if(!$$obj_function{description_overridden})
# {
# Convert C documentation to C++.
DocsParser::convert_tags_to_doxygen($text);
DocsParser::substitute_identifiers($$obj_function{name}, $text);
$$text =~ s/\bX\s+Window\b/X \%Window/g;
$$text =~ s/\bWindow\s+manager/\%Window manager/g;
# }
}
sub convert_tags_to_doxygen($)
{
my ($text) = @_;
for($$text)
{
# Replace format tags.
s"<(/?)(?:emphasis|replaceable)>"<$1em>"g;
s"<(/?)(?:constant|envar|filename|function|guimenuitem|literal|option|structfield|varname)>"<$1tt>"g;
# Some argument names are suffixed by "_" -- strip this.
# gtk-doc uses @thearg, but doxygen uses @a thearg.
s" ?\@([a-zA-Z0-9]*(_[a-zA-Z0-9]+)*)_?\b" \@a $1"g;
# Don't convert Doxygen's $throw, @throws and @param, so these can be used
# in the docs_override.xml.
# Also don't convert @enum and @var which are used for enum documentation.
s" \@a (throws?|param|enum|var)\b" \@$1"g;
s"^Note ?\d?: "\@note "mg;
s"</?programlisting>""g;
s"<!>""g;
# Remove all link tags.
s"</?u?link[^&]*?>""g;
# Remove all para tags and simpara tags (simple paragraph).
s"</?(sim)?para>""g;
# Convert <simplelist>, <itemizedlist> and <variablelist> to something that
# Doxygen understands.
s"<simplelist>\n?(.*?)</simplelist>\n?"&DocsParser::convert_simplelist($1)"esg;
s"<itemizedlist>\n?(.*?)</itemizedlist>\n?"&DocsParser::convert_itemizedlist($1)"esg;
s"<variablelist>\n?(.*?)</variablelist>\n?"&DocsParser::convert_variablelist($1)"esg;
# Use our Doxygen @newin alias.
# If Since is not followed by a colon, substitute @newin only if it's
# in a sentence of its own at the end of the string.
s/\bSince:\s*(\d+)\.(\d+)\.(\d+)\b\.?/\@newin{$1,$2,$3}/g;
s/\bSince:\s*(\d+)\.(\d+)\b\.?/\@newin{$1,$2}/g;
s/(\.\s+)Since\s+(\d+)\.(\d+)\.(\d+)\.?$/$1\@newin{$2,$3,$4}/;
s/(\.\s+)Since\s+(\d+)\.(\d+)\.?$/$1\@newin{$2,$3}/;
s"\b->\b"->"g;
# Doxygen is too dumb to handle —
s"—" \@htmlonly—\@endhtmlonly "g;
s"\%?\bFALSE\b"<tt>false</tt>"g;
s"\%?\bTRUE\b"<tt>true</tt>"g;
s"\%?\bNULL\b"<tt>0</tt>"g;
s"#?\bgboolean\b"<tt>bool</tt>"g;
s"#?\bg(int|short|long)\b"<tt>$1</tt>"g;
s"#?\bgu(int|short|long)\b"<tt>unsigned $1</tt>"g;
# Escape all backslashes, except in \throw, \throws and \param, which can
# be Doxygen commands in the docs_override.xml.
s"\\"\\\\"g;
s"\\\\(throws?|param)\b"\\$1"g
}
}
# Convert <simplelist> tags to a list of newline-separated elements.
sub convert_simplelist($)
{
my ($text) = @_;
$text =~ s"<member>(.*?)(\n?)</member>(\n?)"$1<br>\n"sg;
return "<br>\n" . $text . "<br>\n";
}
# Convert <itemizedlist> tags to Doxygen format.
sub convert_itemizedlist($)
{
my ($text) = @_;
$text =~ s"<listitem>(.*?)(\n?)</listitem>(\n?)"- $1\n"sg;
return $text;
}
# Convert <variablelist> tags to an HTML definition list.
sub convert_variablelist($)
{
my ($text) = @_;
$text =~ s"</?varlistentry>\n?""g;
$text =~ s"<(/?)term>"<$1dt>"g;
$text =~ s"<(/?)listitem>"<$1dd>"g;
return "<dl>\n" . $text . "</dl>\n";
}
sub substitute_identifiers($$)
{
my ($doc_func, $text) = @_;
for($$text)
{
# TODO: handle more than one namespace
# Convert property names to C++.
# The standard (and correct) gtk-doc way of referring to properties.
s/(#[A-Z]\w+):([a-z\d-]+)/my $name = "$1::property_$2()"; $name =~ s"-"_"g; "$name";/ge;
# This is an incorrect format but widely used so correctly treat as a
# property.
s/(\s)::([a-z\d-]+)(\s+property)/my $name = "$1property_$2()$3"; $name =~ s"-"_"g; "$name";/ge;
# This one catches properties written in the gtk-doc block as for example
# '#GtkActivatable::related-action property'. The correct way to write it
# would be 'GtkActivatable:related-action' (with a single colon and not
# two because the double colons are specifically for signals -- see the
# gtk-doc docs:
# http://developer.gnome.org/gtk-doc-manual/unstable/documenting_symbols.html.en)
# but a few are written with the double colon in the gtk+ docs so this
# protects against those errors.
s/([A-Z]\w+)::([a-z\d-]+)(\s+property)/my $name = "$1::property_$2()$3"; $name =~ s"-"_"g; "$name";/ge;
# Convert signal names to C++.
s/(^|\s)::([a-z\d-]+)(\(\))*([^:\w]|$)/my $name = "$1signal_$2()$4"; $name =~ s"-"_"g; "$name";/ge;
s/(#[A-Z]\w+)::([a-z\d-]+)(\(\))*([^:\w]|$)/my $name = "$1::signal_$2()$4"; $name =~ s"-"_"g; "$name";/ge;
s/[#%]([A-Z][a-z]*)([A-Z][A-Za-z]+)\b/$1::$2/g; # type names
s/[#%]([A-Z])([A-Z]*)_([A-Z\d_]+)\b/$1\L$2\E::$3/g; # enum values
# Undo wrong substitutions.
s/\bHas::/HAS_/g;
s/\bNo::/NO_/g;
s/\bO::/O_/g;
s/\bG:://g; #Rename G::Something to Something.
# Substitute callback types to slot types.
s/(\b\w+)Callback/Slot$1/g;
# Replace C function names with C++ counterparts.
s/\b([a-z]+_[a-z][a-z\d_]+) ?\(\)/&DocsParser::substitute_function($doc_func, $1)/eg;
}
}
sub substitute_function($$)
{
my ($doc_func, $name) = @_;
if(my $defs_method = GtkDefs::lookup_method_dont_mark($name))
{
if(my $defs_object = DocsParser::lookup_object_of_method($$defs_method{class}, $name))
{
my $module = $$defs_object{module};
my $class = $$defs_object{name};
DocsParser::build_method_name($doc_func, $module, $class, \$name);
}
else
{
print "Documentation: Transformed C name $name into ";
non_object_method_name($doc_func, \$name);
print "C++ name $name\n";
}
}
else
{
# Not perfect, but better than nothing.
$name =~ s/^g_/Glib::/;
}
return $name . "()";
}
sub non_object_method_name($$)
{
my ($doc_func, $name) = @_;
if ($$name =~ m/^gtk_/)
{
my %gtk_objects = ("gtk_accel_map" => "AccelMap",
"gtk_clipboard" => "Clipboard",
"gtk_file_filter" => "FileFilter",
"gtk_icon_set" => "IconSet",
"gtk_icon_source" => "IconSource",
"gtk_icon_info" => "IconInfo",
"gtk_page_setup" => "PageSetup",
"gtk_recent_info" => "RecentInfo",
"gtk_tooltip" => "Tooltip",
"gtk_target_list" => "TargetList",
"gtk_drag_source" => "DragSource",
"gtk_print_settings" => "PrintSettings",
"gtk_recent_filter" => "RecentFilter");
foreach my $key (keys(%gtk_objects))
{
if ($$name =~ m/^\Q$key\E/)
{
DocsParser::build_method_name($doc_func, "Gtk", $gtk_objects{$key}, $name);
return;
}
}
}
print STDERR "Documentation: Class/Namespace for $$name not found\n";
}
sub lookup_object_of_method($$)
{
my ($object, $name) = @_;
if($object ne "")
{
my $result = GtkDefs::lookup_object($object);
# We already know the C object name, because $name is a non-static method.
if(defined($result) and ($result ne ""))
{
return $result;
}
else
{
print "DocsParser.pm:lookup_object_of_method(): Warning: GtkDefs::lookup_object() failed for object name=" . $object . ", function name=" . $name . "\n";
print " This may be a missing define-object in a *.defs file.\n"
}
}
my @parts = split(/_/, $name);
pop(@parts);
# (gtk, foo, bar) -> (Gtk, Foo, Bar)
foreach(@parts) { $_ = (length > 2) ? ucfirst : uc; }
# Do a bit of try'n'error.
while($#parts >= 1)
{
my $try = join("", @parts);
if(my $defs_object = GtkDefs::lookup_object($try))
{ return $defs_object; }
pop(@parts);
}
return undef;
}
sub build_method_name($$$$)
{
my ($doc_func, $module, $class, $name) = @_;
my $prefix = $module . $class;
$prefix =~ s/([a-z])([A-Z])/$1_$2/g;
$prefix = lc($prefix) . '_';
if($$name =~ m/^\Q$prefix\E/)
{
my $scope = "";
$scope = "${module}::${class}::" unless($doc_func =~ m/^\Q$prefix\E/);
substr($$name, 0, length($prefix)) = $scope;
}
}
1; # indicate proper module load.
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