kernel-doc

这是Linux环境下的openobex

#!/usr/bin/perl

## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
## Copyright (C) 2000  Tim Waugh <[e-mail]>             ##
##                                                               ##
## This software falls under the GNU General Public License.     ##
## Please read the COPYING file for more information             ##

#
# This will read a 'c' file and scan for embedded comments in the
# style of gnome comments (+minor extensions - see below).
#

# Note: This only supports 'c'.

# usage:
# kerneldoc [ -docbook | -html | -text | -man ]
#           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
# or
#           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
#
#  Set output format using one of -docbook -html -text or -man.  Default is man.
#
#  -function funcname
#	If set, then only generate documentation for the given function(s).  All
#	other functions are ignored.
#
#  -nofunction funcname
#	If set, then only generate documentation for the other function(s).  All
#	other functions are ignored. Cannot be used with -function together
#	(yes thats a bug - perl hackers can fix it 8))
#
#  c files - list of 'c' files to process
#
#  All output goes to stdout, with errors to stderr.

#
# format of comments.
# In the following table, (...)? signifies optional structure.
#                         (...)* signifies 0 or more structure elements
# /**
#  * function_name(:)? (- short description)?
# (* @parameterx: (description of parameter x)?)*
# (* a blank line)?
#  * (Description:)? (Description of function)?
#  * (section header: (section description)? )*
#  (*)?*/
#
# So .. the trivial example would be:
#
# /**
#  * my_function
#  **/
#
# If the Description: header tag is ommitted, then there must be a blank line
# after the last parameter specification.
# e.g.
# /**
#  * my_function - does my stuff
#  * @my_arg: its mine damnit
#  *
#  * Does my stuff explained. 
#  */
#
#  or, could also use:
# /**
#  * my_function - does my stuff
#  * @my_arg: its mine damnit
#  * Description: Does my stuff explained. 
#  */
# etc.
#
# All descriptions can be multiline, apart from the short function description.
#
# All descriptive text is further processed, scanning for the following special
# patterns, which are highlighted appropriately.
#
# 'funcname()' - function
# '$ENVVAR' - environmental variable
# '&struct_name' - name of a structure (up to two words including 'struct')
# '@parameter' - name of a parameter
# '%CONST' - name of a constant.

# match expressions used to find embedded type information
$type_constant = "\\\%([-_\\w]+)";
$type_func = "(\\w+)\\(\\)";
$type_param = "\\\@(\\w+)";
$type_struct = "\\\&((struct\\s*)?\\w+)";
$type_env = "(\\\$\\w+)";


# Output conversion substitutions.
#  One for each output format

# these work fairly well
%highlights_html = ( $type_constant, "<i>\$1</i>",
		     $type_func, "<b>\$1</b>",
		     $type_struct, "<i>\$1</i>",
		     $type_param, "<tt><b>\$1</b></tt>" );
$blankline_html = "<p>";

# sgml, docbook format
%highlights_sgml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
		     $type_constant, "<constant>\$1</constant>",
		     $type_func, "<function>\$1</function>",
		     $type_struct, "<structname>\$1</structname>",
		     $type_env, "<envar>\$1</envar>",
		     $type_param, "<parameter>\$1</parameter>" );
$blankline_sgml = "</para><para>\n";

# gnome, docbook format
%highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
		     $type_func, "<function>\$1</function>",
		     $type_struct, "<structname>\$1</structname>",
		     $type_env, "<envar>\$1</envar>",
		     $type_param, "<parameter>\$1</parameter>" );
$blankline_gnome = "</para><para>\n";

# these are pretty rough
%highlights_man = ( $type_constant, "\$1",
		    $type_func, "\\\\fB\$1\\\\fP",
		    $type_struct, "\\\\fI\$1\\\\fP",
		    $type_param, "\\\\fI\$1\\\\fP" );
$blankline_man = "";

# text-mode
%highlights_text = ( $type_constant, "\$1",
		     $type_func, "\$1",
		     $type_struct, "\$1",
		     $type_param, "\$1" );
$blankline_text = "";


sub usage {
    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ]\n";
    print "         [ -function funcname [ -function funcname ...] ]\n";
    print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
    print "         c source file(s) > outputfile\n";
    exit 1;
}

# read arguments
if ($#ARGV==-1) {
    usage();
}

$verbose = 0;
$output_mode = "man";
%highlights = %highlights_man;
$blankline = $blankline_man;
$modulename = "API Documentation";
$function_only = 0;
while ($ARGV[0] =~ m/^-(.*)/) {
    $cmd = shift @ARGV;
    if ($cmd eq "-html") {
	$output_mode = "html";
	%highlights = %highlights_html;
	$blankline = $blankline_html;
    } elsif ($cmd eq "-man") {
	$output_mode = "man";
	%highlights = %highlights_man;
	$blankline = $blankline_man;
    } elsif ($cmd eq "-text") {
	$output_mode = "text";
	%highlights = %highlights_text;
	$blankline = $blankline_text;
    } elsif ($cmd eq "-docbook") {
	$output_mode = "sgml";
	%highlights = %highlights_sgml;
	$blankline = $blankline_sgml;
    } elsif ($cmd eq "-gnome") {
	$output_mode = "gnome";
	%highlights = %highlights_gnome;
	$blankline = $blankline_gnome;
    } elsif ($cmd eq "-module") { # not needed for sgml, inherits from calling document
	$modulename = shift @ARGV;
    } elsif ($cmd eq "-function") { # to only output specific functions
	$function_only = 1;
	$function = shift @ARGV;
	$function_table{$function} = 1;
    } elsif ($cmd eq "-nofunction") { # to only output specific functions
	$function_only = 2;
	$function = shift @ARGV;
	$function_table{$function} = 1;
    } elsif ($cmd eq "-v") {
	$verbose = 1;
    } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
	usage();
    }
}


# generate a sequence of code that will splice in highlighting information
# using the s// operator.
$dohighlight = "";
foreach $pattern (keys %highlights) {
#    print "scanning pattern $pattern ($highlights{$pattern})\n";
    $dohighlight .=  "\$contents =~ s:$pattern:$highlights{$pattern}:gs;\n";
}

##
# dumps section contents to arrays/hashes intended for that purpose.
#
sub dump_section {
    my $name = shift @_;
    my $contents = join "\n", @_;

    if ($name =~ m/$type_constant/) {
	$name = $1;
#	print STDERR "constant section '$1' = '$contents'\n";
	$constants{$name} = $contents;
    } elsif ($name =~ m/$type_param/) {
#	print STDERR "parameter def '$1' = '$contents'\n";
	$name = $1;
	$parameters{$name} = $contents;
    } else {
#	print STDERR "other section '$name' = '$contents'\n";
	$sections{$name} = $contents;
	push @sectionlist, $name;
    }
}

##
# output function
#
# parameters, a hash.
#  function => "function name"
#  parameterlist => @list of parameters
#  parameters => %parameter descriptions
#  sectionlist => @list of sections
#  sections => %descriont descriptions
#  

sub output_highlight {
    my $contents = join "\n", @_;
    my $line;

    eval $dohighlight;
    foreach $line (split "\n", $contents) {
	if ($line eq ""){
	    print $lineprefix, $blankline;
	} else {
            $line =~ s/\\\\\\/\&/g;
	    print $lineprefix, $line;
	}
	print "\n";
    }
}


# output in html
sub output_html {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    print "<h2>Function</h2>\n";

    print "<i>".$args{'functiontype'}."</i>\n";
    print "<b>".$args{'function'}."</b>\n";
    print "(";
    $count = 0;
    foreach $parameter (@{$args{'parameterlist'}}) {
	$type = $args{'parametertypes'}{$parameter};
	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
	    # pointer-to-function
	    print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
	} else {
	    print "<i>".$type."</i> <b>".$parameter."</b>";
	}
	if ($count != $#{$args{'parameterlist'}}) {
	    $count++;
	    print ",\n";
	}
    }
    print ")\n";

    print "<h3>Arguments</h3>\n";
    print "<dl>\n";
    foreach $parameter (@{$args{'parameterlist'}}) {
	print "<dt><b>".$parameter."</b>\n";
	print "<dd>";
	output_highlight($args{'parameters'}{$parameter});
    }
    print "</dl>\n";
    foreach $section (@{$args{'sectionlist'}}) {
	print "<h3>$section</h3>\n";
	print "<blockquote>\n";
	output_highlight($args{'sections'}{$section});
	print "</blockquote>\n";
    }
    print "<hr>\n";
}


# output in html
sub output_intro_html {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;

    foreach $section (@{$args{'sectionlist'}}) {
	print "<h3>$section</h3>\n";
	print "<ul>\n";
	output_highlight($args{'sections'}{$section});
	print "</ul>\n";
    }
    print "<hr>\n";
}



# output in sgml DocBook
sub output_sgml {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    my $id;

    $id = "API-".$args{'function'};
    $id =~ s/[^A-Za-z0-9]/-/g;

    print "<refentry>\n";
    print "<refmeta>\n";
    print "<refentrytitle><phrase id=\"$id\">".$args{'function'}."</phrase></refentrytitle>\n";
    print "</refmeta>\n";
    print "<refnamediv>\n";
    print " <refname>".$args{'function'}."</refname>\n";
    print " <refpurpose>\n";
    print "  ".$args{'purpose'}."\n";
    print " </refpurpose>\n";
    print "</refnamediv>\n";

    print "<refsynopsisdiv>\n";
    print " <title>Synopsis</title>\n";
    print "  <funcsynopsis>\n";
    print "   <funcdef>".$args{'functiontype'}." ";
    print "<function>".$args{'function'}." ";
    print "</function></funcdef>\n";

#    print "<refsect1>\n";
#    print " <title>Synopsis</title>\n";
#    print "  <funcsynopsis>\n";
#    print "   <funcdef>".$args{'functiontype'}." ";
#    print "<function>".$args{'function'}." ";
#    print "</function></funcdef>\n";

    $count = 0;
    if ($#{$args{'parameterlist'}} >= 0) {
	foreach $parameter (@{$args{'parameterlist'}}) {
	    $type = $args{'parametertypes'}{$parameter};
	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
		# pointer-to-function
		print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
		print "     <funcparams>$2</funcparams></paramdef>\n";
	    } else {
		print "   <paramdef>".$type;
		print " <parameter>$parameter</parameter></paramdef>\n";
	    }
	}
    } else {
	print "  <void>\n";
    }
    print "  </funcsynopsis>\n";
    print "</refsynopsisdiv>\n";
#    print "</refsect1>\n";

    # print parameters
    print "<refsect1>\n <title>Arguments</title>\n";
#    print "<para>\nArguments\n";
    if ($#{$args{'parameterlist'}} >= 0) {
	print " <variablelist>\n";
	foreach $parameter (@{$args{'parameterlist'}}) {
	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
	    print "   <listitem>\n    <para>\n";
	    $lineprefix="     ";
	    output_highlight($args{'parameters'}{$parameter});
	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
	}
	print " </variablelist>\n";
    } else {
	print " <para>\n  None\n </para>\n";
    }
    print "</refsect1>\n";

    # print out each section
    $lineprefix="   ";
    foreach $section (@{$args{'sectionlist'}}) {
	print "<refsect1>\n <title>$section</title>\n <para>\n";
#	print "<para>\n$section\n";
	if ($section =~ m/EXAMPLE/i) {
	    print "<example><para>\n";
	}
	output_highlight($args{'sections'}{$section});
#	print "</para>";
	if ($section =~ m/EXAMPLE/i) {
	    print "</para></example>\n";
	}
	print " </para>\n</refsect1>\n";
    }

    print "</refentry>\n\n";
}

# output in sgml DocBook
sub output_intro_sgml {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    my $id;

    $id = $args{'module'};
    $id =~ s/[^A-Za-z0-9]/-/g;

    # print out each section
    $lineprefix="   ";
    foreach $section (@{$args{'sectionlist'}}) {
	print "<refsect1>\n <title>$section</title>\n <para>\n";
#	print "<para>\n$section\n";
	if ($section =~ m/EXAMPLE/i) {
	    print "<example><para>\n";
	}
	output_highlight($args{'sections'}{$section});
#	print "</para>";
	if ($section =~ m/EXAMPLE/i) {
	    print "</para></example>\n";
	}
	print " </para>\n</refsect1>\n";
    }

    print "\n\n";
}

# output in sgml DocBook
sub output_gnome {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    my $id;

    $id = $args{'module'}."-".$args{'function'};
    $id =~ s/[^A-Za-z0-9]/-/g;

    print "<sect2>\n";
    print " <title id=\"$id\">".$args{'function'}."</title>\n";

#    print "<simplesect>\n";
#    print " <title>Synopsis</title>\n";
    print "  <funcsynopsis>\n";
    print "   <funcdef>".$args{'functiontype'}." ";
    print "<function>".$args{'function'}." ";
    print "</function></funcdef>\n";

    $count = 0;
    if ($#{$args{'parameterlist'}} >= 0) {
	foreach $parameter (@{$args{'parameterlist'}}) {
	    $type = $args{'parametertypes'}{$parameter};
	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
		# pointer-to-function
		print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
		print "     <funcparams>$2</funcparams></paramdef>\n";
	    } else {
		print "   <paramdef>".$type;
		print " <parameter>$parameter</parameter></paramdef>\n";
	    }
	}
    } else {
	print "  <void>\n";
    }
    print "  </funcsynopsis>\n";
#    print "</simplesect>\n";
#    print "</refsect1>\n";

    # print parameters
#    print "<simplesect>\n <title>Arguments</title>\n";