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gstreamer/docs/plugins/gstdoc-mkdb
Wim Taymans 9bae9d4b91 More Docs updates. 
Original commit message from CVS:
More Docs updates.
Added plugin documentation. I fear we need a gstdoc implementation
that loads plugins and does introspection on them. I think we should
automatically create the docs for the pads and mime types the plugins
provide. Does anyone have enough perl knowledge to add these features? I
allready changed the C code to output the pad definitions but my perl
knowledge is too limited, for now, to implement the rest of the needed
functionality...
2000-10-25 19:09:53 +00:00

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#!/usr/bin/perl -w
#
# gtk-doc - GTK DocBook documentation generator.
# Copyright (C) 1998 Damon Chaplin
#
# 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.
#
#############################################################################
# Script : gtkdoc-mkdb
# Description : This creates the DocBook files from the edited templates.
#
# NOTE: When creating SGML IDS, we append -CAPS to all
# all-caps identifiers to prevent name clashes. (It basically
# never is the case that mixed-case identifiers would collide.)
# See the CreateValidSGMLID function.
#############################################################################
use strict;
use Getopt::Long;
# Options
# name of documentation module
my $MODULE;
my $TMPL_DIR;
my $SGML_OUTPUT_DIR;
my @SOURCE_DIRS;
my %optctl = (module => \$MODULE,
'source-dir' => \@SOURCE_DIRS,
'output-dir' => \$SGML_OUTPUT_DIR,
'tmpl-dir' => \$TMPL_DIR);
GetOptions(\%optctl, "module=s", "source-dir:s", "output-dir:s");
my $ROOT_DIR = ".";
# All the files are written in subdirectories beneath here.
$TMPL_DIR = $TMPL_DIR ? $TMPL_DIR : "$ROOT_DIR/tmpl";
# This is where we put all the DocBook output.
$SGML_OUTPUT_DIR = $SGML_OUTPUT_DIR ? $SGML_OUTPUT_DIR : "$ROOT_DIR/sgml";
# This file contains the object hierarchy.
my $OBJECT_TREE_FILE = "$ROOT_DIR/$MODULE.hierarchy";
# This file contains signal arguments and names.
my $SIGNALS_FILE = "$ROOT_DIR/$MODULE.signals";
# The file containing Arg information.
my $ARGS_FILE = "$ROOT_DIR/$MODULE.args";
# These global arrays store information on signals. Each signal has an entry
# in each of these arrays at the same index, like a multi-dimensional array.
my @SignalObjects; # The GtkObject which emits the signal.
my @SignalNames; # The signal name.
my @SignalReturns; # The return type.
my @SignalPrototypes; # The rest of the prototype of the signal handler.
# These global arrays store information on Args. Each Arg has an entry
# in each of these arrays at the same index, like a multi-dimensional array.
my @ArgObjects; # The GtkObject which has the Arg.
my @ArgNames; # The Arg name.
my @ArgTypes; # The Arg type - gint, GtkArrowType etc.
my @ArgFlags; # How the Arg can be used - readable/writable etc.
# These global hashes store declaration info keyed on a symbol name.
my %Declarations;
my %DeclarationTypes;
my %DeclarationConditional;
my %DeclarationOutput;
# These global hashes store the existing documentation.
my %SymbolDocs;
my %SymbolTypes;
my %SymbolParams;
# These global hashes store documentation scanned from the source files.
my %SourceSymbolDocs;
my %SourceSymbolParams;
# These global arrays store GtkObject and subclasses and the hierarchy.
my @Objects;
my @ObjectLevels;
# Create the root DocBook output directory if it doens't exist.
if (! -e $SGML_OUTPUT_DIR) {
mkdir ("$SGML_OUTPUT_DIR", 0777)
|| die "Can't create directory: $SGML_OUTPUT_DIR";
}
# Function and other declaration output settings.
my $RETURN_TYPE_FIELD_WIDTH = 12;
my $SYMBOL_FIELD_WIDTH = 32;
my $SIGNAL_FIELD_WIDTH = 12;
&ReadSignalsFile ($SIGNALS_FILE);
&ReadArgsFile ($ARGS_FILE);
&ReadObjectHierarchy;
# FIXME: this is the header file output at the top of the Synopsis.
# We should allow this to be changed in the MODULE-sections.txt file.
# gnome.h includes gtk/gtk.h which includes gdk/gdk.h which includes glib.h
# so what should we output? - alternatives?
my $HEADER_FILE = "";
if ($MODULE eq 'glib') {
$HEADER_FILE = "glib.h";
} elsif ($MODULE eq 'gdk') {
$HEADER_FILE = "gtk/gdk.h";
} elsif ($MODULE eq 'gtk') {
$HEADER_FILE = "gtk/gtk.h";
} elsif ($MODULE eq 'gnome' || $MODULE eq 'gnomeui') {
$HEADER_FILE = "gnome.h";
}
for my $dir (@SOURCE_DIRS) {
&ReadSourceDocumentation ($dir);
}
&OutputSGML ("$ROOT_DIR/$MODULE-sections.txt");
#############################################################################
# Function : OutputObjectList
# Description : This outputs the alphabetical list of objects, in a columned
# table. FIXME: Currently this also outputs ancestor objects
# which may not actually be in this module.
# Arguments : none
#############################################################################
sub OutputObjectList {
my $cols = 3;
open (OUTPUT, ">$SGML_OUTPUT_DIR/object_index.sgml")
|| die "Can't create $SGML_OUTPUT_DIR/object_index.sgml";
print (OUTPUT <<EOF);
<informaltable pgwide=1 frame="none">
<tgroup cols="$cols">
<colspec colwidth="1*">
<colspec colwidth="1*">
<colspec colwidth="1*">
<tbody>
EOF
my $count = 0;
my $object;
foreach $object (sort(@Objects)) {
my $xref = &MakeXRef ($object);
if ($count % $cols == 0) { print (OUTPUT "<row>\n"); }
print (OUTPUT "<entry>$xref</entry>\n");
if ($count % $cols == ($cols - 1)) { print (OUTPUT "</row>\n"); }
$count++;
}
print (OUTPUT <<EOF);
</tbody></tgroup></informaltable>
EOF
close (OUTPUT);
}
#############################################################################
# Function : OutputSGML
# Description : This collects the output for each section of the docs, and
# outputs each file when the end of the section is found.
# Arguments : $file - the $MODULE-sections.txt file which contains all of
# the functions/macros/structs etc. being documented, organised
# into sections and subsections.
#############################################################################
sub OutputSGML {
my ($file) = @_;
open (INPUT, $file)
|| die "Can't open $file";
my $book_top = "";
my $book_bottom = "";
my $includes = "";
my $section_includes = "";
my $in_section = 0;
my $title = "";
my $subsection = "";
my $synopsis;
my $details;
my $num_symbols;
while (<INPUT>) {
if (m/^#/) {
next;
} elsif (m/^<SECTION>/) {
$synopsis = "";
$details = "";
$num_symbols = 0;
$in_section = 1;
} elsif (m/^<SUBSECTION\s*(.*)>/i) {
$synopsis .= "\n";
$subsection = $1;
} elsif (m/^<SUBSECTION>/) {
} elsif (m/^<TITLE>(.*)<\/TITLE>/) {
$title = $1;
# print "Section: $title\n";
# We don't want warnings if object & class structs aren't used.
$DeclarationOutput{$title} = 1;
$DeclarationOutput{"${title}Class"} = 1;
} elsif (m/^<FILE>(.*)<\/FILE>/) {
$file = $1;
%SymbolDocs = ();
%SymbolTypes = ();
%SymbolParams = ();
&ReadTemplateFile ("$TMPL_DIR/$file.sgml", 1);
&MergeSourceDocumentation;
} elsif (m/^<INCLUDE>(.*)<\/INCLUDE>/) {
if ($in_section) {
$section_includes = $1;
} else {
$includes = $1;
}
} elsif (m/^<\/SECTION>/) {
if ($title eq "") {
$title = $file;
}
# print "End of section: $title\n";
$file =~ s/\s/_/g;
$file .= ".sgml";
# GtkObjects use their class name as the ID.
my $section_id;
if (&CheckIsObject ($title)) {
$section_id = &CreateValidSGMLID ($title);
} else {
$section_id = &CreateValidSGMLID ("$MODULE-$title");
}
if ($num_symbols > 0) {
$book_top .= "<!entity $section_id SYSTEM \"sgml/$file\">\n";
$book_bottom .= " &$section_id;\n";
if ($section_includes eq "") {
$section_includes = $includes;
}
&OutputSGMLFile ($file, $title, $section_id, $section_includes,
\$synopsis, \$details);
}
$title = "";
$subsection = "";
$in_section = 0;
$section_includes = "";
} elsif (m/^(\S+)/) {
my $symbol = $1;
#print " Symbol: $symbol\n";
my $declaration = $Declarations{$1};
if (defined ($declaration)) {
# We don't want standard macros/functions of GtkObjects,
# or private declarations.
if ($subsection ne "Standard" && $subsection ne "Private") {
my ($synop, $desc) = &OutputDeclaration ($symbol,
$declaration);
$synopsis .= $synop;
$details .= $desc;
}
# Note that the declaration has been output.
$DeclarationOutput{$symbol} = 1;
} else {
print "WARNING: No declaration for: $1\n";
}
$num_symbols++;
}
}
close (INPUT);
&OutputBook ($book_top, $book_bottom);
}
#############################################################################
# Function : OutputDeclaration
# Description : Returns the synopsis and detailed description DocBook
# describing one function/macro etc.
# Arguments : $symbol - the name of the function/macro begin described.
# $declaration - the declaration of the function/macro.
#############################################################################
sub OutputDeclaration {
my ($symbol, $declaration) = @_;
my $type = $DeclarationTypes {$symbol};
if ($type eq 'MACRO') {
return &OutputMacro ($symbol, $declaration);
} elsif ($type eq 'TYPEDEF') {
return &OutputTypedef ($symbol, $declaration);
} elsif ($type eq 'STRUCT') {
return &OutputStruct ($symbol, $declaration);
} elsif ($type eq 'ENUM') {
return &OutputEnum ($symbol, $declaration);
} elsif ($type eq 'UNION') {
return &OutputUnion ($symbol, $declaration);
} elsif ($type eq 'VARIABLE') {
return &OutputVariable ($symbol, $declaration);
} elsif ($type eq 'FUNCTION') {
return &OutputFunction ($symbol, $declaration, $type);
} elsif ($type eq 'USER_FUNCTION') {
return &OutputFunction ($symbol, $declaration, $type);
} else {
die "Unknown symbol type";
}
}
#############################################################################
# Function : OutputMacro
# Description : Returns the synopsis and detailed description of a macro.
# Arguments : $symbol - the macro.
# $declaration - the declaration of the macro.
#############################################################################
sub OutputMacro {
my ($symbol, $declaration) = @_;
my $id = &CreateValidSGMLID ($symbol);
my $synop = "#define <link linkend=\"$id\">$symbol</link>";
my $desc;
my $args = "";
if ($declaration =~ m/^\s*#\s*define\s+\w+(\([^\)]*\))/) {
$args = $1;
if (length ($symbol) < $SYMBOL_FIELD_WIDTH) {
$synop .= (' ' x ($SYMBOL_FIELD_WIDTH - length ($symbol)));
}
$synop .= &CreateValidSGML ($args);
}
$synop .= "\n";
if ($args ne "") {
$desc = "<refsect2>\n<title><anchor id=\"$id\">${symbol}()</title>\n";
} else {
$desc = "<refsect2>\n<title><anchor id=\"$id\">$symbol</title>\n";
}
# Don't output the macro definition if is is a conditional macro or it
# looks like a function, i.e. starts with "g_" or "_?gnome_", or it is
# longer than 2 lines, otherwise we get lots of complicated macros like
# g_assert.
if (!defined ($DeclarationConditional{$symbol}) && ($symbol !~ m/^g_/)
&& ($symbol !~ m/^_?gnome_/) && (($declaration =~ tr/\n//) < 2)) {
$declaration = &CreateValidSGML ($declaration);
$desc .= "<programlisting>$declaration</programlisting>\n";
} else {
$desc .= "<programlisting>#define $symbol";
$desc .= &CreateValidSGML ($args);
$desc .= "</programlisting>\n";
}
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= &OutputParamDescriptions ("MACRO", $symbol);
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputTypedef
# Description : Returns the synopsis and detailed description of a typedef.
# Arguments : $symbol - the typedef.
# $declaration - the declaration of the typedef,
# e.g. 'typedef unsigned int guint;'
#############################################################################
sub OutputTypedef {
my ($symbol, $declaration) = @_;
my $id = &CreateValidSGMLID ($symbol);
my $synop = "typedef <link linkend=\"$id\">$symbol</link>;\n";
my $desc = "<refsect2>\n<title><anchor id=\"$id\">$symbol</title>\n";
if (!defined ($DeclarationConditional{$symbol})) {
$declaration = &CreateValidSGML ($declaration);
$desc .= "<programlisting>$declaration</programlisting>\n";
}
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputStruct
# Description : Returns the synopsis and detailed description of a struct.
# We check if it is a widget struct, and if so we only output
# parts of it that are noted as public fields.
# We also use a different SGML ID for widget structs, since the
# original ID is used for the entire RefEntry.
# Arguments : $symbol - the struct.
# $declaration - the declaration of the struct.
#############################################################################
sub OutputStruct {
my ($symbol, $declaration) = @_;
my $is_widget_struct = 0;
if (&CheckIsObject ($symbol)) {
# print "Found widget struct: $symbol\n";
$is_widget_struct = 1;
}
my $id;
if ($is_widget_struct) {
$id = &CreateValidSGMLID ($symbol . "_struct");
} else {
$id = &CreateValidSGMLID ($symbol);
}
my $synop = "struct <link linkend=\"$id\">$symbol</link>;\n";
my $desc = "<refsect2>\n<title><anchor id=\"$id\">struct $symbol</title>\n";
# Form a pretty-printed, private-data-removed form of the declaration
my $decl_out;
if ($declaration =~ m/^\s*$/) {
# print "Found opaque struct\n";
$decl_out = "struct $symbol;";
} elsif ($is_widget_struct) {
my $public = 0;
my $new_declaration = "";
my $decl_line;
foreach $decl_line (split (/\n/, $declaration)) {
# print "Struct line: $decl_line\n";
if ($decl_line =~ m%/\*\s*<\s*public\s*>\s*\*/%) {
$public = 1;
} elsif ($decl_line =~ m%/\*\s*<\s*private\s*>\s*\*/%) {
$public = 0;
} elsif ($public) {
$new_declaration .= $decl_line . "\n";
}
}
if ($new_declaration) {
$decl_out = "struct $symbol {\n" . $new_declaration;
# If we finished with public set, we already have the struct end.
if ($public == 0) {
$decl_out .= "};\n";
}
} else {
$decl_out = "struct $symbol;";
}
} else {
$decl_out = $declaration;
}
$decl_out = &CreateValidSGML ($decl_out);
$desc .= "<programlisting>$decl_out</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
# Create a table of fields and descriptions
# FIXME: Inserting &nbsp's into the produced type declarations here would
# improve the output in most situations ... except for function
# members of structs!
my @fields = ParseStructDeclaration($declaration, $is_widget_struct, \&MakeXRef,
sub {
"<structfield>$_[0]</structfield>";
});
my $params = $SymbolParams{$symbol};
# If no parameters are filled in, we don't generate the description
# table, for backwards compatibility
my $found = 0;
if (defined $params) {
for (my $i = 1; $i <= $#$params; $i += 2) {
if ($params->[$i] =~ /\S/) {
$found = 1;
last;
}
}
}
if ($found) {
my %field_descrs = @$params;
$desc .= <<EOF;
<informaltable pgwide=1 frame="none" role="struct">
<tgroup cols="2">
<colspec colwidth="2*">
<colspec colwidth="8*">
<tbody>
EOF
while (@fields) {
my $field_name = shift @fields;
my $text = shift @fields;
my $field_descr = $field_descrs{$field_name};
$desc .= "<row>\n<entry>$text</entry>\n";
if (defined $field_descr) {
$desc .= "<entry>".&ExpandAbbreviations($field_descr)."</entry>\n";
} else {
$desc .= "<entry></entry>\n";
}
$desc .= "</row>\n";
}
$desc .= "</tbody></tgroup></informaltable>";
}
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputEnum
# Description : Returns the synopsis and detailed description of a enum.
# Arguments : $symbol - the enum.
# $declaration - the declaration of the enum.
#############################################################################
sub OutputEnum {
my ($symbol, $declaration) = @_;
my $id = &CreateValidSGMLID ($symbol);
my $synop = "enum <link linkend=\"$id\">$symbol</link>;\n";
my $desc = "<refsect2>\n<title><anchor id=\"$id\">enum $symbol</title>\n";
$declaration = &CreateValidSGML ($declaration);
$desc .= "<programlisting>$declaration</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
# Create a table of fields and descriptions
my @members = ParseEnumDeclaration($declaration);
my $params = $SymbolParams{$symbol};
# If no parameters are filled in, we don't generate the description
# table, for backwards compatibility
my $found = 0;
if (defined $params) {
for (my $i = 1; $i <= $#$params; $i += 2) {
if ($params->[$i] =~ /\S/) {
$found = 1;
last;
}
}
}
if ($found) {
my %member_descrs = @$params;
$desc .= <<EOF;
<informaltable pgwide=1 frame="none" role="enum">
<tgroup cols="2">
<colspec colwidth="2*">
<colspec colwidth="8*">
<tbody>
EOF
for my $member_name (@members) {
my $member_descr = $member_descrs{$member_name};
$desc .= "<row>\n<entry><literal>$member_name</literal></entry>\n";
if (defined $member_descr) {
$desc .= "<entry>".&ExpandAbbreviations($member_descr)."</entry>\n";
} else {
$desc .= "<entry></entry>\n";
}
$desc .= "</row>\n";
}
$desc .= "</tbody></tgroup></informaltable>";
}
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputUnion
# Description : Returns the synopsis and detailed description of a union.
# Arguments : $symbol - the union.
# $declaration - the declaration of the union.
#############################################################################
sub OutputUnion {
my ($symbol, $declaration) = @_;
my $id = &CreateValidSGMLID ($symbol);
my $synop = "union <link linkend=\"$id\">$symbol</link>;\n";
my $desc = "<refsect2>\n<title><anchor id=\"$id\">union $symbol</title>\n";
$declaration = &CreateValidSGML ($declaration);
$desc .= "<programlisting>$declaration</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputVariable
# Description : Returns the synopsis and detailed description of a variable.
# Arguments : $symbol - the extern'ed variable.
# $declaration - the declaration of the variable.
#############################################################################
sub OutputVariable {
my ($symbol, $declaration) = @_;
my $id = &CreateValidSGMLID ($symbol);
my $synop;
if ($declaration =~ m/^\s*extern\s+((const\s+|unsigned\s+)*\w+)(\s+\*+|\*+|\s)(\s*)([A-Za-z]\w*)\s*;/) {
my $mod = defined ($1) ? $1 : "";
my $ptr = defined ($3) ? $3 : "";
my $space = defined ($4) ? $4 : "";
$synop = "extern $mod$ptr$space<link linkend=\"$id\">$symbol</link>;\n";
} else {
$synop = "extern <link linkend=\"$id\">$symbol</link>;\n";
}
my $desc = "<refsect2>\n<title><anchor id=\"$id\">$symbol</title>\n";
$declaration = &CreateValidSGML ($declaration);
$desc .= "<programlisting>$declaration</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputFunction
# Description : Returns the synopsis and detailed description of a function.
# Arguments : $symbol - the function.
# $declaration - the declaration of the function.
#############################################################################
sub OutputFunction {
my ($symbol, $declaration, $symbol_type) = @_;
my $id = &CreateValidSGMLID ($symbol);
# Take out the return type
$declaration =~ s/<RETURNS>\s*(const\s+|unsigned\s+)*(\w+)\s*(\**)\s*<\/RETURNS>\n//;
my $type_modifier = defined($1) ? $1 : "";
my $type = $2;
my $pointer = $3;
my $xref = &MakeXRef ($type);
my $start = "";
if ($symbol_type eq 'USER_FUNCTION') {
# $start = "typedef ";
}
my $ret_type_len = length ($start) + length ($type_modifier)
+ length ($pointer) + length ($type);
my $ret_type_output;
my $symbol_len;
if ($ret_type_len < $RETURN_TYPE_FIELD_WIDTH) {
$ret_type_output = "$start$type_modifier$xref$pointer"
. (' ' x ($RETURN_TYPE_FIELD_WIDTH - $ret_type_len));
$symbol_len = 0;
} else {
# $ret_type_output = "$start$type_modifier$xref$pointer\n"
# . (' ' x $RETURN_TYPE_FIELD_WIDTH);
$ret_type_output = "$start$type_modifier$xref$pointer ";
$symbol_len = $ret_type_len + 1 - $RETURN_TYPE_FIELD_WIDTH;
}
$symbol_len += length ($symbol);
my $char1 = my $char2 = my $char3 = "";
if ($symbol_type eq 'USER_FUNCTION') {
$symbol_len += 3;
$char1 = "(";
$char2 = "*";
$char3 = ")";
}
my ($symbol_output, $symbol_desc_output);
if ($symbol_len < $SYMBOL_FIELD_WIDTH) {
$symbol_output = "$char1<link linkend=\"$id\">$char2$symbol</link>$char3"
. (' ' x ($SYMBOL_FIELD_WIDTH - $symbol_len));
$symbol_desc_output = "$char1$char2$symbol$char3"
. (' ' x ($SYMBOL_FIELD_WIDTH - $symbol_len));
} else {
$symbol_output = "$char1<link linkend=\"$id\">$char2$symbol</link>$char3\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH));
$symbol_desc_output = "$char1$char2$symbol$char3\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH));
}
my $synop = $ret_type_output . $symbol_output . '(';
my $desc = "<refsect2>\n<title><anchor id=\"$id\">${symbol} ()</title>\n";
$desc .= "<programlisting>${ret_type_output}$symbol_desc_output(";
my $param_num = 0;
while ($declaration ne "") {
if ($declaration =~ s/^[\s,]+//) {
# skip whitespace and commas
next;
} elsif ($declaration =~ s/^void\s*[,\n]//) {
$synop .= "void";
$desc .= "void";
} elsif ($declaration =~ s/^...\s*[,\n]//) {
if ($param_num == 0) {
$synop .= "...";
$desc .= "...";
} else {
$synop .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " ...";
$desc .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " ...";
}
# allow alphanumerics, '_', '[' & ']' in param names
} elsif ($declaration =~ s/^(const\s+|unsigned\s+)*(struct\s+)?(\w+)\s*(\**)\s*(const\s+)?(\**)?\s*(\w+)?\s*(\[\d*\])?\s*[,\n]//) {
my $mod1 = defined($1) ? $1 : "";
if (defined($2)) { $mod1 .= $2; }
my $type = $3;
my $ptr1 = $4;
my $mod2 = defined($5) ? $5 : "";
my $ptr2 = $6;
my $name = defined($7) ? $7 : "";
if ($name) { $ptr1 = " " . $ptr1; }
my $array = defined($8) ? $8 : "";
my $xref = &MakeXRef ($type);
# print "Type: $mod1$type $ptr1 $mod2 $name $array\n";
if ($param_num == 0) {
$synop .= "$mod1$xref$ptr1$mod2$ptr2$name$array";
$desc .= "$mod1$xref$ptr1$mod2$ptr2$name$array";
} else {
$synop .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " $mod1$xref$ptr1$mod2$ptr2$name$array";
$desc .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " $mod1$xref$ptr1$mod2$ptr2$name$array";
}
# Try to match parameters which are functions.
} elsif ($declaration =~ s/^(const\s+|unsigned\s+)*(struct\s+)?(\w+)\s*(\**)\s*(const\s+)?\(\s*\*\s*(\w+)\s*\)\s*\(([^)]*)\)\s*[,\n]//) {
my $mod1 = defined($1) ? $1 : "";
if (defined($2)) { $mod1 .= $2; }
my $type = $3;
my $ptr1 = $4;
my $mod2 = defined($5) ? $5 : "";
my $name = $6;
my $func_params = $7;
my $xref = &MakeXRef ($type);
# print "Type: $mod1$type$ptr1$mod2(*$name)($func_params)\n";
if ($param_num == 0) {
$synop .= "$mod1$xref$ptr1$mod2 (*$name) ($func_params)";
$desc .= "$mod1$xref$ptr1$mod2 (*$name) ($func_params)";
} else {
$synop .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " $mod1$xref$ptr1$mod2 (*$name) ($func_params)";
$desc .= ",\n"
. (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH))
. " $mod1$xref$ptr1$mod2 (*$name) ($func_params)";
}
} else {
print "###Can't parse args for function $symbol: $declaration\n";
last;
}
$param_num++;
}
$synop .= ");\n";
$desc .= ");</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= &OutputParamDescriptions ("FUNCTION", $symbol);
$desc .= "</refsect2>\n";
return ($synop, $desc);
}
#############################################################################
# Function : OutputParamDescriptions
# Description : Returns the DocBook output describing the parameters of a
# function, macro or signal handler.
# Arguments : $symbol_type - 'FUNCTION', 'MACRO' or 'SIGNAL'. Signal
# handlers have an implicit user_data parameter last.
# $symbol - the name of the function/macro being described.
#############################################################################
sub OutputParamDescriptions {
my ($symbol_type, $symbol) = @_;
my $output = "";
if (defined ($SymbolParams{$symbol})) {
my $returns = "";
my $params = $SymbolParams{$symbol};
my $params_desc = "";
if ($#$params < 0) {
print "WARNING: 0 parameters\n";
}
my $j;
for ($j = 0; $j <= $#$params; $j += 2) {
my $param_name = $$params[$j];
my $param = $$params[$j + 1];
if ($param_name eq "Returns") {
$returns = &ExpandAbbreviations($param);
} else {
if ($param_name eq "Varargs") {
$param_name = "...";
}
$param = &ExpandAbbreviations($param);
$params_desc .= "<row><entry align=\"right\"><parameter>$param_name</parameter>&nbsp;:</entry>\n<entry>$param</entry></row>\n";
}
}
# Signals have an implicit user_data parameter which we describe.
if ($symbol_type eq "SIGNAL") {
$params_desc .= "<row><entry align=\"right\"><parameter>user_data</parameter>&nbsp;:</entry>\n<entry>user data set when the signal handler was connected.</entry></row>\n";
}
# Start a table if we need one.
if ($params_desc || $returns) {
$output .= <<EOF;
<informaltable pgwide=1 frame="none" role="params">
<tgroup cols="2">
<colspec colwidth="2*">
<colspec colwidth="8*">
<tbody>
EOF
if ($params_desc ne "") {
# $output .= "<row><entry>Parameters:</entry></row>\n";
$output .= $params_desc;
}
# Output the returns info last.
if ($returns) {
$output .= "<row><entry align=\"right\"><emphasis>Returns</emphasis> :</entry><entry>$returns</entry></row>\n";
}
# Finish the table.
$output .= "</tbody></tgroup></informaltable>";
}
}
return $output;
}
#############################################################################
# Function : OutputSGMLFile
# Description : Outputs the final DocBook file for one section.
# Arguments : $file - the name of the file.
# $title - the title from the $MODULE-sections.txt file, which
# will be overriden by the title in the template file.
# $section_id - the SGML id to use for the toplevel tag.
# $includes - comma-separates list of include files added at top
# of synopsis, with '<' '>' around them.
# $synopsis - reference to the DocBook for the Synopsis part.
# $details - reference to the DocBook for the Details part.
#############################################################################
sub OutputSGMLFile {
my ($file, $title, $section_id, $includes, $synopsis, $details) = @_;
# Find out if this is a GtkObject or descendant.
my $signals_synop = "";
my $signals_desc = "";
my $args_synop = "";
my $args_desc = "";
my $hierarchy = "";
if (&CheckIsObject ($title)) {
($signals_synop, $signals_desc) = &GetSignals ($title);
($args_synop, $args_desc) = &GetArgs ($title);
$hierarchy = &GetHierarchy ($title);
}
# The edited title overrides the one from the sections file.
my $new_title = $SymbolDocs{"$TMPL_DIR/$file:Title"};
if (defined ($new_title) && $new_title !~ m/^\s*$/) {
$title = $new_title;
# print "Found title: $title\n";
}
my $short_desc = $SymbolDocs{"$TMPL_DIR/$file:Short_Description"};
if (!defined ($short_desc) || $short_desc =~ m/^\s*$/) {
# $short_desc = "one line description goes here.";
$short_desc = "";
} else {
$short_desc = &ExpandAbbreviations($short_desc);
# print "Found short_desc: $short_desc";
}
my $long_desc = $SymbolDocs{"$TMPL_DIR/$file:Long_Description"};
if (!defined ($long_desc) || $long_desc =~ m/^\s*$/) {
$long_desc = "<para>\nA longer description goes here.\n</para>\n";
} else {
$long_desc = &ExpandAbbreviations($long_desc);
# print "Found long_desc: $long_desc";
}
my $see_also = $SymbolDocs{"$TMPL_DIR/$file:See_Also"};
if (!defined ($see_also) || $see_also =~ m%^\s*(<para>)?\s*(</para>)?\s*$%) {
$see_also = "";
} else {
$see_also = &ExpandAbbreviations($see_also);
# print "Found see_also: $see_also";
}
if ($see_also) {
$see_also = "<refsect1>\n<title>See Also</title>\n$see_also\n</refsect1>\n";
}
my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
gmtime (time);
my $month = (qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec))[$mon];
$year += 1900;
my $include_output = "";
my $include;
foreach $include (split (/,/, $includes)) {
$include_output .= "#include &lt;${include}&gt;\n";
}
open (OUTPUT, ">$SGML_OUTPUT_DIR/$file")
|| die "Can't create $SGML_OUTPUT_DIR/$file";
# Note: The refname and refpurpose are on the same line to stop
# docbook-to-man 1.08 putting them on separate lines.
print OUTPUT <<EOF;
<refentry id="$section_id" revision="$mday $month $year">
<refmeta>
<refentrytitle>$title</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>\U$MODULE\E Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>$title</refname><refpurpose>$short_desc</refpurpose>
</refnamediv>
<refsynopsisdiv><title>Synopsis</title>
<synopsis>
$include_output
$${synopsis}</synopsis>
</refsynopsisdiv>
$hierarchy
$args_synop
$signals_synop
<refsect1>
<title>Description</title>
$long_desc
</refsect1>
<refsect1>
<title>Details</title>
$$details
</refsect1>
$args_desc
$signals_desc
$see_also
</refentry>
EOF
close (OUTPUT);
}
#############################################################################
# Function : OutputBook
# Description : Outputs the SGML entities that need to be included into the
# main SGML file for the module.
# Arguments : $book_top - the declarations of the entities, which are added
# at the top of the main SGML file.
# $book_bottom - the references to the entities, which are
# added in the main SGML file at the desired position.
#############################################################################
sub OutputBook {
my ($book_top, $book_bottom) = @_;
open (OUTPUT, ">$SGML_OUTPUT_DIR/$MODULE-doc.top")
|| die "Can't create $SGML_OUTPUT_DIR/$MODULE-doc.top";
print OUTPUT $book_top;
close (OUTPUT);
open (OUTPUT, ">$SGML_OUTPUT_DIR/$MODULE-doc.bottom")
|| die "Can't create $SGML_OUTPUT_DIR/$MODULE-doc.bottom";
print OUTPUT $book_bottom;
close (OUTPUT);
}
#############################################################################
# Function : CreateValidSGMLID
# Description : Creates a valid SGML 'id' from the given string.
# NOTE: SGML ids are case-insensitive, so we have a few special
# cases to avoid clashes of ids.
# Arguments : $id - the string to be converted into a valid SGML id.
#############################################################################
sub CreateValidSGMLID {
my ($id) = $_[0];
# Append -CAPS to all all-caps identifiers
# Special case, '_' would end up as '' so we use 'gettext-macro' instead.
if ($id eq "_") { return "gettext-macro"; }
if ($id !~ /[a-z]/) { $id .= "-CAPS" };
$id =~ s/[_ ]/-/g;
$id =~ s/[,\.]//g;
$id =~ s/^-*//;
$id =~ s/::/-/g;
return $id;
}
#############################################################################
# Function : CreateValidSGML
# Description : This turns any chars which are used in SGML into entities,
# e.g. '<' into '&lt;'
# Arguments : $text - the text to turn into proper SGML.
#############################################################################
sub CreateValidSGML {
my ($text) = @_;
$text =~ s/&/&amp;/g; # Do this first, or the others get messed up.
$text =~ s/</&lt;/g;
$text =~ s/>/&gt;/g;
return $text;
}
#############################################################################
# Function : ExpandAbbreviations
# Description : This turns the abbreviations function(), macro(), @param,
# %constant, and #symbol into appropriate DocBook markup.
# Arguments : $text - the text to expand.
#############################################################################
sub ExpandAbbreviations {
my ($text) = @_;
# Convert 'function()' or 'macro()'
$text =~ s/(\w+)\s*\(\)/&MakeXRef($1) . "()";/eg;
# Convert '@param'
$text =~ s/\@(\w+)/<parameter>$1<\/parameter>/g;
# Convert '%constant'. Also allow negative numbers, e.g. %-1.
$text =~ s/\%(-?\w+)/<literal>$1<\/literal>/g;
# Convert '#symbol'
$text =~ s/#([\w-]+)/&MakeXRef($1);/eg;
return $text;
}
#############################################################################
# Function : MakeXRef
# Description : This returns a cross-reference link to the given symbol.
# Though it doesn't try to do this for a few standard C types
# that it knows won't be in the documentation.
# Arguments : $symbol - the symbol to try to create a XRef to.
#############################################################################
sub MakeXRef {
my ($symbol) = $_[0];
# print "Getting type link for $symbol\n";
# Don't create a link for some standard C types and functions, to cut
# down on the number of warnings output by jade.
if ($symbol eq "void" || $symbol eq "va_list" || $symbol eq "int"
|| $symbol eq "char" || $symbol eq "printf" || $symbol eq "sprintf") {
return $symbol;
}
my $symbol_id = &CreateValidSGMLID ($symbol);
# Get rid of special '-struct' suffix.
$symbol =~ s/-struct$//;
return "<link linkend=\"$symbol_id\">$symbol</link>";
}
#############################################################################
# Function : GetHierarchy
# Description : Returns the DocBook output describing the ancestors of a
# GtkObject subclass. It uses the global @Objects and
# @ObjectLevels arrays to walk up the tree.
# Arguments : $object - the GtkObject subclass.
#############################################################################
sub GetHierarchy {
my ($object) = @_;
# Find object in the objects array.
my $found = 0;
my $i;
for ($i = 0; $i < @Objects; $i++) {
if ($Objects[$i] eq $object) {
$found = 1;
last;
}
}
if (!$found) {
return "";
}
# Walk up the hierarchy, pushing ancestors onto the ancestors array.
my @ancestors = ();
push (@ancestors, $object);
my $level = $ObjectLevels[$i];
# print "Level: $level\n";
while ($level > 1) {
$i--;
if ($ObjectLevels[$i] < $level) {
push (@ancestors, $Objects[$i]);
$level = $ObjectLevels[$i];
# print "Level: $level\n";
}
}
# Output the ancestors list, indented and with links.
my $hierarchy = "<synopsis>\n\n";
$level = 0;
for ($i = $#ancestors; $i >= 0; $i--) {
my $link_text;
# Don't add a link to the current widget, i.e. when i == 0.
if ($i > 0) {
my $ancestor_id = &CreateValidSGMLID ($ancestors[$i]);
$link_text = "<link linkend=\"$ancestor_id\">$ancestors[$i]</link>";
} else {
$link_text = "$ancestors[$i]";
}
if ($level == 0) {
$hierarchy .= " $link_text\n";
} else {
# $hierarchy .= ' ' x ($level * 6 - 3) . "|\n";
$hierarchy .= ' ' x ($level * 6 - 3) . "+----$link_text\n";
}
$level++;
}
$hierarchy .= "</synopsis>\n";
return <<EOF;
<refsect1>
<title>Object Hierarchy</title>
$hierarchy
</refsect1>
EOF
}
#############################################################################
# Function : GetSignals
# Description : Returns the synopsis and detailed description DocBook output
# for the signal handlers of a given GtkObject subclass.
# Arguments : $object - the GtkObject subclass, e.g. 'GtkButton'.
#############################################################################
sub GetSignals {
my ($object) = @_;
my $synop = "";
my $desc = "";
my $i;
for ($i = 0; $i <= $#SignalObjects; $i++) {
if ($SignalObjects[$i] eq $object) {
# print "Found signal: $SignalNames[$i]\n";
my $name = $SignalNames[$i];
my $symbol = "${object}::${name}";
my $id = &CreateValidSGMLID ("$object-$name");
my $name_len = length ($name) + 2;
if ($name_len < $SIGNAL_FIELD_WIDTH) {
$synop .= "&quot;<link linkend=\"$id\">$name</link>&quot;"
. (' ' x ($SIGNAL_FIELD_WIDTH - $name_len));
} else {
$synop .= "&quot;<link linkend=\"$id\">$name</link>&quot;\n"
. (' ' x $SIGNAL_FIELD_WIDTH);
}
$desc .= "<refsect2><title><anchor id=\"$id\">The &quot;$name&quot; signal</title>\n";
$desc .= "<programlisting>";
$SignalReturns[$i] =~ m/\s*(const\s*)?(\w+)\s*(\**)/;
my $type_modifier = defined($1) ? $1 : "";
my $type = $2;
my $pointer = $3;
my $xref = &MakeXRef ($type);
my $ret_type_len = length ($type_modifier) + length ($pointer)
+ length ($type);
my $ret_type_output = "$type_modifier$xref$pointer"
. (' ' x ($RETURN_TYPE_FIELD_WIDTH - $ret_type_len));
$synop .= "${ret_type_output}user_function (";
$desc .= "${ret_type_output}user_function (";
my @params = split ("\n", $SignalPrototypes[$i]);
my $j;
for ($j = 0; $j <= $#params; $j++) {
# allow alphanumerics, '_', '[' & ']' in param names
if ($params[$j] =~ m/^\s*(\w+)\s*(\**)\s*([\w\[\]]+)\s*$/) {
$type = $1;
$pointer = $2;
$name = $3;
$xref = &MakeXRef ($type);
$synop .= "$xref $pointer$name,\n";
$synop .= (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH));
$desc .= "$xref $pointer$name,\n";
$desc .= (' ' x ($SYMBOL_FIELD_WIDTH + $RETURN_TYPE_FIELD_WIDTH));
} else {
print "###Can't parse arg: $params[$j]\nArgs:$SignalPrototypes[$i]\n";
}
}
$xref = &MakeXRef ("gpointer");
$synop .= "$xref user_data);\n";
$desc .= "$xref user_data);</programlisting>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
}
$desc .= &OutputParamDescriptions ("SIGNAL", $symbol);
$desc .= "</refsect2>";
}
}
if ($synop ne '') {
$synop = <<EOF;
<refsect1>
<title>Signal Prototypes</title>
<synopsis>
${synop}</synopsis>
</refsect1>
EOF
$desc = <<EOF;
<refsect1>
<title>Signals</title>
$desc
</refsect1>
EOF
}
return ($synop, $desc);
}
#############################################################################
# Function : GetArgs
# Description : Returns the synopsis and detailed description DocBook output
# for the Args of a given GtkObject subclass.
# Arguments : $object - the GtkObject subclass, e.g. 'GtkButton'.
#############################################################################
sub GetArgs {
my ($object) = @_;
my $synop = "";
my $desc = "";
my $i;
for ($i = 0; $i <= $#ArgObjects; $i++) {
if ($ArgObjects[$i] eq $object) {
# print "Found arg: $ArgNames[$i]\n";
my $name = $ArgNames[$i];
# Remember only one colon so we don't clash with signals.
my $symbol = "${object}:${name}";
# I've used two dashes here for the same reason.
my $id = &CreateValidSGMLID ("$object--$name");
my $type = $ArgTypes[$i];
my $type_output;
if ($type eq "GtkSignal") {
$type = "GtkSignalFunc, gpointer";
$type_output = &MakeXRef ("GtkSignalFunc") . ", "
. &MakeXRef ("gpointer");
} elsif ($type eq "GtkString") {
$type = "gchar*";
$type_output = &MakeXRef ("gchar") . "*";
} else {
$type_output = &MakeXRef ($type);
}
my $flags = $ArgFlags[$i];
my $flags_string = "";
if ($flags =~ m/r/) {
$flags_string = "Read";
}
if ($flags =~ m/w/) {
if ($flags_string) { $flags_string .= " / "; }
$flags_string .= "Write";
}
if ($flags =~ m/x/) {
if ($flags_string) { $flags_string .= " / "; }
$flags_string .= "Construct";
}
if ($flags =~ m/X/) {
if ($flags_string) { $flags_string .= " / "; }
$flags_string .= "Construct Only";
}
if ($flags =~ m/c/) {
if ($flags_string) { $flags_string .= " / "; }
$flags_string .= "Child";
}
my $pad1 = " " x (20 - length ($name));
my $pad2 = " " x (20 - length ($type));
$synop .= " &quot;<link linkend=\"$id\">$name</link>&quot;$pad1 $type_output$pad2 : $flags_string\n";
$desc .= "<varlistentry><term><anchor id=\"$id\">&quot;<literal>$name</literal>&quot; ($type_output : $flags_string)</term>\n<listitem>\n";
if (defined ($SymbolDocs{$symbol})) {
$desc .= &ExpandAbbreviations($SymbolDocs{$symbol});
} else {
$desc .= "<para></para>\n";
}
$desc .= "</listitem></varlistentry>\n";
}
}
if ($synop ne '') {
$synop = <<EOF;
<refsect1>
<title>Args</title>
<synopsis>
${synop}</synopsis>
</refsect1>
EOF
$desc = <<EOF;
<refsect1>
<title>Args</title>
<variablelist>
$desc
</variablelist>
</refsect1>
EOF
}
return ($synop, $desc);
}
#############################################################################
# Function : ReadSourceDocumentation
# Description : This reads in the documentation embedded in comment blocks
# in the source code (for Gnome).
#
# Parameter descriptions override any in the template files.
# Function descriptions are placed before any description from
# the template files.
#
# It recursively descends the source directory looking for .c
# files and scans them looking for specially-formatted comment
# blocks.
#
# Arguments : $source_dir - the directory to scan.
#############################################################################
sub ReadSourceDocumentation {
my ($source_dir) = @_;
# print "Scanning source directory: $source_dir\n";
# This array holds any subdirectories found.
my (@subdirs) = ();
opendir (SRCDIR, $source_dir)
|| die "Can't open source directory $source_dir: $!";
my $file;
foreach $file (readdir (SRCDIR)) {
if ($file =~ /^\./) {
next;
} elsif (-d "$source_dir/$file") {
push (@subdirs, $file);
} elsif ($file =~ m/\.c$/) {
&ScanSourceFile ("$source_dir/$file");
}
}
closedir (SRCDIR);
# Now recursively scan the subdirectories.
my $dir;
foreach $dir (@subdirs) {
&ReadSourceDocumentation ("$source_dir/$dir");
}
}
#############################################################################
# Function : ScanSourceFile
# Description : Scans one source file looking for specially-formatted comment
# blocks. It calls &MergeSourceDocumentation to merge any
# documentation found with the documentation already read in
# from the template files.
#
# Arguments : $file - the file to scan.
#############################################################################
sub ScanSourceFile {
my ($file) = @_;
# print "Scanning source file: $file\n";
open (SRCFILE, $file)
|| die "Can't open $file: $!";
my $in_comment_block = 0;
my $symbol;
my ($in_description, $in_return);
my ($description, $return_desc, $return_start);
my $current_param;
my @params;
while (<SRCFILE>) {
# Look for the start of a comment block.
if (!$in_comment_block) {
if (m%^\s*/\*\*\s%) {
# print "Found comment block start\n";
$in_comment_block = 1;
# Reset all the symbol data.
$symbol = "";
$in_description = 0;
$in_return = 0;
$description = "";
$return_desc = "";
$current_param = -1;
@params = ();
}
next;
}
# We're in a comment block. Check if we've found the end of it.
if (m%^\s*\*+/%) {
# print "Found comment block end: $symbol\n";
if (!$symbol) {
print <<EOF;
WARNING: symbol name not found in comment block.
$file line $.
EOF
} else {
# Add the return value description onto the end of the params.
if ($return_desc) {
push (@params, "Returns");
push (@params, $return_desc);
}
$SourceSymbolDocs{$symbol} = $description;
$SourceSymbolParams{$symbol} = [ @params ];
}
$in_comment_block = 0;
next;
}
# Get rid of ' * ' at start of every line in the comment block.
s%^\s*\*\s*%%;
# But make sure we don't get rid of the newline at the end.
if (!$_) {
$_ = "\n";
}
# If we haven't found the symbol name yet, look for it.
if (!$symbol) {
if (m%^(\w+)\s*:?%) {
$symbol = $1;
}
next;
}
# If we're in the return value description, add it to the end.
if ($in_return) {
# If we find another valid returns line, we assume that the first
# one was really part of the description.
if (m%^(returns:|return\s+value:|returns\s*)%i) {
$description .= $return_start . $return_desc;
$return_start = $1;
$return_desc = $';
} else {
$return_desc .= $_;
}
next;
}
# If we're in the description part, check for the 'Return' line.
# If that isn't found, add the text to the end.
if ($in_description) {
# Get rid of 'Description:'
s%^Description:%%;
if (m%^(returns:|return\s+value:|returns\s*)%i) {
# print "RETURNS: $_";
$return_start = $1;
$return_desc = $';
$in_return = 1;
next;
}
$description .= $_;
next;
}
# We must be in the parameters. Check for the empty line at the end.
if (m%^$%) {
$in_description = 1;
next;
}
# Look for a parameter name.
if (m%^@(\S+)\s*:%) {
my $param_name = $1;
# print "Found parameter: $param_name\n";
# Allow '...' as the Varargs parameter.
if ($param_name eq "...") {
$param_name = "Varargs";
}
push (@params, $param_name);
push (@params, $');
$current_param += 2;
next;
}
# We must be in the middle of a parameter description, so add it on
# to the last element in @params.
if ($current_param == -1) {
print <<EOF
ERROR parsing comment block file : parameter expected -
$file:$.
EOF
} else {
$params[$#params] .= $_;
}
}
close (SRCFILE);
}
#############################################################################
# Function : MergeSourceDocumentation
# Description : This merges documentation read from a source file into the
# documentation read in from a template file.
#
# Parameter descriptions override any in the template files.
# Function descriptions are placed before any description from
# the template files.
#
# Arguments : none
#############################################################################
sub MergeSourceDocumentation {
my $symbol;
foreach $symbol (keys (%SymbolDocs)) {
if (exists ($SourceSymbolDocs{$symbol})) {
my $src_doc = $SourceSymbolDocs{$symbol};
my $tmpl_doc = $SymbolDocs{$symbol};
$tmpl_doc = defined ($tmpl_doc) ? $tmpl_doc : "";
$src_doc =~ s/^\s+//;
$src_doc =~ s/\s+$//;
# Convert special SGML characters. I'm not sure if we want to do
# this but currently there are a couple of '&'s in the source code
# comment blocks which mess up the HTML output badly.
$src_doc = &CreateValidSGML ($src_doc);
# If there is a blank line, finish the paragraph and start another.
if ($src_doc =~ s%\n{2,}%\n</para>\n<para>\n%g) {
# print "Converted blank lines:\n$src_doc\n";
}
$SymbolDocs{$symbol} = "<para>\n$src_doc</para>\n$tmpl_doc";
# The templates contain the definitive parameter names and order,
# so we will not change that. We only override the actual text.
my $tmpl_params = $SymbolParams{$symbol};
if (!defined ($tmpl_params)) {
next;
}
my $params = $SourceSymbolParams{$symbol};
my $j;
for ($j = 0; $j <= $#$tmpl_params; $j += 2) {
my $tmpl_param_name = $$tmpl_params[$j];
my $tmpl_param_desc = $$tmpl_params[$j + 1];
# Try to find the param in the source comment documentation.
my $found = 0;
my $k;
for ($k = 0; $k <= $#$params; $k += 2) {
my $param_name = $$params[$k];
my $param_desc = $$params[$k + 1];
# We accept changed in case, since the Gnome source docs
# contain a lot of these.
if ("\L$param_name" eq "\L$tmpl_param_name") {
$found = 1;
# Override the description.
$$tmpl_params[$j + 1] = &CreateValidSGML ($param_desc);
# Set the name to "" to mark it as used.
$$params[$k] = "";
last;
}
}
# Output a warning if the parameter is not found.
if (!$found) {
print <<EOF;
WARNING: Parameter description missing in source code comment block -
Func: $symbol Param: $tmpl_param_name.
EOF
}
}
# Now we output a warning if parameters have been described which
# do not exist.
for ($j = 0; $j <= $#$params; $j += 2) {
my $param_name = $$params[$j];
if ($param_name) {
print <<EOF;
WARNING: Parameter described in source code comment block but does not exist -
Func: $symbol Param: $param_name.
EOF
}
}
}
}
}
#############################################################################
# LIBRARY FUNCTIONS - These functions are used in both gtkdoc-mkdb and
# gtkdoc-mktmpl and should eventually be moved to a
# separate library.
#############################################################################
#############################################################################
# Function : ReadDeclarationsFile
# Description : This reads in a file containing the function/macro/enum etc.
# declarations.
#
# Note that in some cases there are several declarations with
# the same name, e.g. for conditional macros. In this case we
# set a flag in the %DeclarationConditional hash so the
# declaration is not shown in the docs.
#
# If a macro and a function have the same name, e.g. for
# gtk_object_ref, the function declaration takes precedence.
#
# Some opaque structs are just declared with 'typedef struct
# _name name;' in which case the declaration may be empty.
# The structure may have been found later in the header, so
# that overrides the empty declaration.
#
# Arguments : $file - the declarations file to read
# $override - if declarations in this file should override
# any current declaration.
#############################################################################
sub ReadDeclarationsFile {
my ($file, $override) = @_;
if ($override == 0) {
%Declarations = ();
%DeclarationTypes = ();
%DeclarationConditional = ();
%DeclarationOutput = ();
}
open (INPUT, $file)
|| die "Can't open $file";
my $declaration_type = "";
my $declaration_name;
my $declaration;
while (<INPUT>) {
if (!$declaration_type) {
if (m/^<([^>]+)>/) {
$declaration_type = $1;
$declaration_name = "";
# print "Found declaration: $declaration_type\n";
$declaration = "";
}
} else {
if (m%^<NAME>(.*)</NAME>%) {
$declaration_name = $1;
} elsif (m%^</$declaration_type>%) {
# print "Found end of declaration: $declaration_name\n";
# Check that the declaration has a name
if ($declaration_name eq "") {
print "ERROR: $declaration_type has no name $file:$.\n";
}
# Check if the symbol is already defined.
if (defined ($Declarations{$declaration_name})
&& $override == 0) {
# Function declarations take precedence.
if ($DeclarationTypes{$declaration_name} eq 'FUNCTION') {
# Ignore it.
} elsif ($declaration_type eq 'FUNCTION') {
$Declarations{$declaration_name} = $declaration;
$DeclarationTypes{$declaration_name} = $declaration_type;
} elsif ($DeclarationTypes{$declaration_name}
eq $declaration_type) {
# If the existing declaration is empty override it.
if ($declaration_type eq 'STRUCT') {
if ($Declarations{$declaration_name} =~ m/^\s*$/) {
$Declarations{$declaration_name} = $declaration;
} elsif ($declaration =~ m/^\s*$/) {
# Ignore an empty declaration.
} else {
print "WARNING: Structure has multiple definitions: $declaration_name\n";
}
} else {
# set flag in %DeclarationConditional hash for
# multiply defined macros/typedefs.
$DeclarationConditional{$declaration_name} = 1;
}
} else {
print "ERROR: $declaration_name has multiple definitions\n";
}
} else {
$Declarations{$declaration_name} = $declaration;
$DeclarationTypes{$declaration_name} = $declaration_type;
}
$declaration_type = "";
} else {
$declaration .= $_;
}
}
}
close (INPUT);
}
#############################################################################
# Function : ReadSignalsFile
# Description : This reads in an existing file which contains information on
# all GTK signals. It creates the arrays @SignalNames and
# @SignalPrototypes containing info on the signals. The first
# line of the SignalPrototype is the return type of the signal
# handler. The remaining lines are the parameters passed to it.
# The last parameter, "gpointer user_data" is always the same
# so is not included.
# Arguments : $file - the file containing the signal handler prototype
# information.
#############################################################################
sub ReadSignalsFile {
my ($file) = @_;
my $in_signal = 0;
my $signal_object;
my $signal_name;
my $signal_returns;
my $signal_prototype;
# Reset the signal info.
@SignalObjects = ();
@SignalNames = ();
@SignalReturns = ();
@SignalPrototypes = ();
if (! -f $file) {
return;
}
if (!open (INPUT, $file)) {
warn "Can't open $file - skipping signals\n";
return;
}
while (<INPUT>) {
if (!$in_signal) {
if (m/^<SIGNAL>/) {
$in_signal = 1;
$signal_object = "";
$signal_name = "";
$signal_returns = "";
$signal_prototype = "";
}
} else {
if (m/^<NAME>(.*)<\/NAME>/) {
$signal_name = $1;
if ($signal_name =~ m/^(.*)::(.*)$/) {
$signal_object = $1;
$signal_name = $2;
# print "Found signal: $signal_name\n";
} else {
print "Invalid signal name: $signal_name\n";
}
} elsif (m/^<RETURNS>(.*)<\/RETURNS>/) {
$signal_returns = $1;
} elsif (m%^</SIGNAL>%) {
# print "Found end of signal: ${signal_object}::${signal_name}\nReturns: ${signal_returns}\n${signal_prototype}";
push (@SignalObjects, $signal_object);
push (@SignalNames, $signal_name);
push (@SignalReturns, $signal_returns);
push (@SignalPrototypes, $signal_prototype);
$in_signal = 0;
} else {
$signal_prototype .= $_;
}
}
}
close (INPUT);
}
#############################################################################
# Function : ReadTemplateFile
# Description : This reads in the manually-edited documentation file
# corresponding to the file currently being created, so we can
# insert the documentation at the appropriate places.
# It outputs %SymbolTypes, %SymbolDocs and %SymbolParams, which
# is a hash of arrays.
# NOTE: This function is duplicated in gtkdoc-mkdb (but
# slightly different).
# Arguments : $docsfile - the template file to read in.
# $skip_unused_params - 1 if the unused parameters should be
# skipped.
#############################################################################
sub ReadTemplateFile {
my ($docsfile, $skip_unused_params) = @_;
# print "Reading $docsfile\n";
if (! -f $docsfile) {
print "File doesn't exist: $docsfile\n";
return;
}
my $current_type = ""; # Type of symbol being read.
my $current_symbol = ""; # Name of symbol being read.
my $symbol_doc = ""; # Description of symbol being read.
my @params; # Parameter names and descriptions of current
# function/macro/function typedef.
my $current_param = -1; # Index of parameter currently being read.
# Note that the param array contains pairs
# of param name & description.
my $in_unused_params = 0; # True if we are reading in the unused params.
open (DOCS, $docsfile)
|| die "Can't open file $docsfile: $!";
while (<DOCS>) {
if (m/^<!-- ##### ([A-Z_]+) (\S+) ##### -->/) {
my $type = $1;
my $symbol = $2;
if ($symbol eq "Title"
|| $symbol eq "Short_Description"
|| $symbol eq "Long_Description"
|| $symbol eq "See_Also") {
$symbol = $docsfile . ":" . $symbol;
# print "Found symbol: $symbol\n";
}
# Store previous symbol, but remove any trailing blank lines.
if ($current_symbol ne "") {
$symbol_doc =~ s/\s+$//;
$SymbolTypes{$current_symbol} = $current_type;
$SymbolDocs{$current_symbol} = $symbol_doc;
if ($current_param >= 0) {
$SymbolParams{$current_symbol} = [ @params ];
} else {
# Delete any existing params in case we are overriding a
# previously read template.
delete $SymbolParams{$current_symbol};
}
}
$current_type = $type;
$current_symbol = $symbol;
$current_param = -1;
$in_unused_params = 0;
$symbol_doc = "";
@params = ();
} elsif (m/^<!-- # Unused Parameters # -->/) {
# print "DEBUG: Found unused parameters\n";
$in_unused_params = 1;
next;
} elsif ($in_unused_params && $skip_unused_params) {
# When outputting the DocBook we skip unused parameters.
# print "DEBUG: Skipping unused param: $_";
next;
} else {
# Check if param found
if (s/^\@(\S+):\s*//) {
my $param_name = $1;
# Allow variations of 'Returns'
if ($param_name =~ m/^[Rr]eturns?$/) {
$param_name = "Returns";
}
# print "Found param: $param_name\n";
push (@params, $param_name);
push (@params, $_);
$current_param += 2;
next;
}
if ($current_param >= 0) {
$params[$current_param] .= $_;
} else {
$symbol_doc .= $_;
}
}
}
# Remember to finish the current symbol doccs.
if ($current_symbol ne "") {
$symbol_doc =~ s/\s+$//;
$SymbolTypes{$current_symbol} = $current_type;
$SymbolDocs{$current_symbol} = $symbol_doc;
if ($current_param >= 0) {
$SymbolParams{$current_symbol} = [ @params ];
} else {
delete $SymbolParams{$current_symbol};
}
}
close (DOCS);
}
#############################################################################
# Function : ReadObjectHierarchy
# Description : This reads in the $MODULE-hierarchy.txt file containing all
# the GtkObject subclasses described in this module (and their
# ancestors).
# It places them in the @Objects array, and places their level
# in the widget hierarchy in the @ObjectLevels array, at the
# same index. GtkObject, the root object, has a level of 1.
#
# FIXME: the version in gtkdoc-mkdb also generates tree_index.sgml
# as it goes along, this should be split out into a separate
# function.
#
# Arguments : none
#############################################################################
sub ReadObjectHierarchy {
@Objects = ();
@ObjectLevels = ();
if (! -f $OBJECT_TREE_FILE) {
return;
}
if (!open (INPUT, $OBJECT_TREE_FILE)) {
warn "Can't open $OBJECT_TREE_FILE - skipping object tree\n";
return;
}
open (OUTPUT, ">$SGML_OUTPUT_DIR/tree_index.sgml")
|| die "Can't create $SGML_OUTPUT_DIR/tree_index.sgml";
print (OUTPUT "<literallayout>\n");
while (<INPUT>) {
if (m/\S+/) {
my $object = $&;
my $level = (length($`)) / 2 + 1;
# print ("Level: $level Object: $object\n");
my $xref = &MakeXRef ($object);
print (OUTPUT ' ' x ($level * 4), "$xref\n");
push (@Objects, $object);
push (@ObjectLevels, $level);
}
}
print (OUTPUT "</literallayout>\n");
close (INPUT);
close (OUTPUT);
&OutputObjectList;
}
#############################################################################
# Function : ReadArgsFile
# Description : This reads in an existing file which contains information on
# all GTK args. It creates the arrays @ArgObjects, @ArgNames,
# @ArgTypes and @ArgFlags containing info on the args.
# Arguments : $file - the file containing the arg information.
#############################################################################
sub ReadArgsFile {
my ($file) = @_;
my $in_arg = 0;
my $arg_object;
my $arg_name;
my $arg_type;
my $arg_flags;
# Reset the signal info.
@ArgObjects = ();
@ArgNames = ();
@ArgTypes = ();
@ArgFlags = ();
if (! -f $file) {
return;
}
if (!open (INPUT, $file)) {
warn "Can't open $file - skipping args\n";
return;
}
while (<INPUT>) {
if (!$in_arg) {
if (m/^<ARG>/) {
$in_arg = 1;
$arg_object = "";
$arg_name = "";
$arg_type = "";
$arg_flags = "";
}
} else {
if (m/^<NAME>(.*)<\/NAME>/) {
$arg_name = $1;
if ($arg_name =~ m/^(.*)::(.*)$/) {
$arg_object = $1;
$arg_name = $2;
# print "Found arg: $arg_name\n";
} else {
print "Invalid arg name: $arg_name\n";
}
} elsif (m/^<TYPE>(.*)<\/TYPE>/) {
$arg_type = $1;
} elsif (m/^<FLAGS>(.*)<\/FLAGS>/) {
$arg_flags = $1;
} elsif (m%^</ARG>%) {
# print "Found end of arg: ${arg_object}::${arg_name}\n${arg_type} : ${arg_flags}\n";
push (@ArgObjects, $arg_object);
push (@ArgNames, $arg_name);
push (@ArgTypes, $arg_type);
push (@ArgFlags, $arg_flags);
$in_arg = 0;
}
}
}
close (INPUT);
}
#############################################################################
# Function : CheckIsObject
# Description : Returns 1 if the given name is a GtkObject or a subclass.
# It uses the global @Objects array.
# Note that the @Objects array only contains classes in the
# current module and their ancestors - not all GTK classes.
# Arguments : $name - the name to check.
#############################################################################
sub CheckIsObject {
my ($name) = @_;
my $object;
foreach $object (@Objects) {
if ($object eq $name) {
return 1;
}
}
return 0;
}
#############################################################################
# Function : ParseStructDeclaration
# Description : This function takes a structure declaration and
# breaks it into individual type declarations.
# Arguments : $declaration - the declaration to parse
# $is_object - true if this is an object structure
# $typefunc - function reference to apply to type
# $namefunc - function reference to apply to name
#############################################################################
sub ParseStructDeclaration {
my ($declaration, $is_object, $typefunc, $namefunc) = @_;
# Remove all private parts of the declaration
# For objects, assume private
if ($is_object) {
$declaration =~ s!(struct\s+\w*\s*\{)
.*?
(?:/\*\s*<\s*public\s*>\s*\*/|(?=\}))!$1!msgx;
}
$declaration =~ s!\n?[ \t]*/\*\s*<\s*private\s*>\s*\*/
.*?
(?:/\*\s*<\s*public\s*>\s*\*/|(?=\}))!!msgx;
# Remove all other comments;
$declaration =~ s@/\*([^*]+|\*(?!/))*\*/@ @g;
my @result = ();
if ($declaration =~ /^\s*$/) {
return @result;
}
# Prime match after "struct {" declaration
if (!scalar($declaration =~ m/struct\s+\w*\s*\{/msg)) {
die "Structure declaration '$declaration' does not begin with struct [NAME] {\n";
}
# Treat lines in sequence, allowing singly nested anonymous structs
# and unions.
while ($declaration =~ m/\s*([^{;]+(\{[^\}]*\}[^{;]+)?);/msg) {
my $line = $1;
last if $line =~ /^\s*\}\s*\w*\s*$/;
# FIXME: Just ignore nested structs and unions for now
next if $line =~ /{/;
# FIXME: The regexes here are the same as in OutputFunction;
# this functionality should be separated out.
if ($line =~ m/^
(const\s+|unsigned\s+)*(struct\s+)? # mod1
(\w+)\s* # type
(\**)\s* # ptr1
(const\s+)? # mod2
(\**)?\s* # ptr2
(\w+(?:\s*,\s*\w+)*)\s* # name
(?:((?:\[[^\]]*\]\s*)+) | # array
(:\s*\d+))?\s* # bits
$/x) {
my $mod1 = defined($1) ? $1 : "";
if (defined($2)) { $mod1 .= $2; }
my $type = $3;
my $ptr1 = $4;
my $mod2 = defined($5) ? $5 : "";
my $ptr2 = $6;
my $name = $7;
$ptr1 = " " . $ptr1;
my $array = defined($8) ? $8 : "";
my $bits = defined($9) ? " $9" : "";
my $ptype = defined $typefunc ? $typefunc->($type) : $type;
# FIXME:
# As a hack, we allow the "name" to be of the form
# "a, b, c". This isn't the correct C syntax, but
# at least we get "gint16 x, y" right. Such constructs
# should really be completely removed from the source.
# Or we should really try to understand the C syntax
# here...
my @names = split /\s*,\s*/, $name;
for my $n (@names) {
push @result, $n;
if (defined $namefunc) {
$n = $namefunc->($n);
}
push @result, "$mod1$ptype$ptr1$mod2$ptr2$n$array$bits";
}
# Try to match structure members which are functions
} elsif ($line =~ m/^
(const\s+|unsigned\s+)*(struct\s+)? # mod1
(\w+)\s* # type
(\**)\s* # ptr1
(const\s+)? # mod2
\(\s*\*\s*(\w+)\s*\)\s* # name
\(([^)]*)\)\s* # func_params
$/x) {
my $mod1 = defined($1) ? $1 : "";
if (defined($2)) { $mod1 .= $2; }
my $type = $3;
my $ptr1 = $4;
my $mod2 = defined($5) ? $5 : "";
my $name = $6;
my $func_params = $7;
my $ptype = defined $typefunc ? $typefunc->($type) : $type;
my $pname = defined $namefunc ? $namefunc->($name) : $name;
push @result, $name;
push @result, "$mod1$ptype$ptr1$mod2 (*$pname) ($func_params)";
} else {
warn "Cannot parse structure field $line";
}
}
return @result;
}
#############################################################################
# Function : ParseEnumDeclaration
# Description : This function takes a enumeration declaration and
# breaks it into individual enum member declarations.
# Arguments : $declaration - the declaration to parse
#############################################################################
sub ParseEnumDeclaration {
my ($declaration, $is_object) = @_;
# Remove comments;
$declaration =~ s@/\*([^*]+|\*(?!/))*\*/@ @g;
my @result = ();
if ($declaration =~ /^\s*$/) {
return @result;
}
# Remove parenthesized expressions (in macros like GTK_BLAH = BLAH(1,3))
# to avoid getting confused by commas they might contain. This
# doesn't handle nested parentheses correctly.
$declaration =~ s/\([^)]+\)//g;
# Prime match after "typedef enum {" declaration
if (!scalar($declaration =~ m/typedef\s+enum\s*\{/msg)) {
die "Enum declaration '$declaration' does not begin with typedef enum {\n";
}
# Treat lines in sequence.
while ($declaration =~ m/\s*([^,\}]+)([,\}])/msg) {
my $line = $1;
my $terminator = $2;
if ($line =~ m/^(\w+)\s*(=.*)?$/msg) {
push @result, $1;
# Special case for GIOCondition, where the values are specified by
# macros which expand to include the equal sign like '=1'.
} elsif ($line =~ m/^(\w+)\s*GLIB_SYSDEF_POLL/msg) {
push @result, $1;
# Special case include of <gdk/gdkcursors.h>, just ignore it
} elsif ($line =~ m/^#include/) {
last;
} else {
warn "Cannot parse enumeration member $line";
}
last if $terminator eq '}';
}
return @result;
}
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