scripts/kernel-doc

   1 #!/usr/bin/perl -w
   2
   3 use strict;
   4
   5 ## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
   6 ## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
   7 ## Copyright (C) 2001  Simon Huggins                             ##
   8 ## Copyright (C) 2005-2008  Randy Dunlap                         ##
   9 ##                                                               ##
  10 ## #define enhancements by Armin Kuster <akuster@mvista.com>     ##
  11 ## Copyright (c) 2000 MontaVista Software, Inc.                  ##
  12 ##                                                               ##
  13 ## This software falls under the GNU General Public License.     ##
  14 ## Please read the COPYING file for more information             ##
  15
  16 # w.o. 03-11-2000: added the '-filelist' option.
  17
  18 # 18/01/2001 -  Cleanups
  19 #               Functions prototyped as foo(void) same as foo()
  20 #               Stop eval'ing where we don't need to.
  21 # -- huggie@earth.li
  22
  23 # 27/06/2001 -  Allowed whitespace after initial "/**" and
  24 #               allowed comments before function declarations.
  25 # -- Christian Kreibich <ck@whoop.org>
  26
  27 # Still to do:
  28 #       - add perldoc documentation
  29 #       - Look more closely at some of the scarier bits :)
  30
  31 # 26/05/2001 -  Support for separate source and object trees.
  32 #               Return error code.
  33 #               Keith Owens <kaos@ocs.com.au>
  34
  35 # 23/09/2001 - Added support for typedefs, structs, enums and unions
  36 #              Support for Context section; can be terminated using empty line
  37 #              Small fixes (like spaces vs. \s in regex)
  38 # -- Tim Jansen <tim@tjansen.de>
  39
  40
  41 #
  42 # This will read a 'c' file and scan for embedded comments in the
  43 # style of gnome comments (+minor extensions - see below).
  44 #
  45
  46 # Note: This only supports 'c'.
  47
  48 # usage:
  49 # kernel-doc [ -docbook | -html | -text | -man ] [ -no-doc-sections ]
  50 #           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
  51 # or
  52 #           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
  53 #
  54 #  Set output format using one of -docbook -html -text or -man.  Default is man.
  55 #
  56 #  -no-doc-sections
  57 #       Do not output DOC: sections
  58 #
  59 #  -function funcname
  60 #       If set, then only generate documentation for the given function(s) or
  61 #       DOC: section titles.  All other functions and DOC: sections are ignored.
  62 #
  63 #  -nofunction funcname
  64 #       If set, then only generate documentation for the other function(s)/DOC:
  65 #       sections. Cannot be used together with -function (yes, that's a bug --
  66 #       perl hackers can fix it 8))
  67 #
  68 #  c files - list of 'c' files to process
  69 #
  70 #  All output goes to stdout, with errors to stderr.
  71
  72 #
  73 # format of comments.
  74 # In the following table, (...)? signifies optional structure.
  75 #                         (...)* signifies 0 or more structure elements
  76 # /**
  77 #  * function_name(:)? (- short description)?
  78 # (* @parameterx: (description of parameter x)?)*
  79 # (* a blank line)?
  80 #  * (Description:)? (Description of function)?
  81 #  * (section header: (section description)? )*
  82 #  (*)?*/
  83 #
  84 # So .. the trivial example would be:
  85 #
  86 # /**
  87 #  * my_function
  88 #  **/
  89 #
  90 # If the Description: header tag is omitted, then there must be a blank line
  91 # after the last parameter specification.
  92 # e.g.
  93 # /**
  94 #  * my_function - does my stuff
  95 #  * @my_arg: its mine damnit
  96 #  *
  97 #  * Does my stuff explained.
  98 #  */
  99 #
 100 #  or, could also use:
 101 # /**
 102 #  * my_function - does my stuff
 103 #  * @my_arg: its mine damnit
 104 #  * Description: Does my stuff explained.
 105 #  */
 106 # etc.
 107 #
 108 # Beside functions you can also write documentation for structs, unions,
 109 # enums and typedefs. Instead of the function name you must write the name
 110 # of the declaration;  the struct/union/enum/typedef must always precede
 111 # the name. Nesting of declarations is not supported.
 112 # Use the argument mechanism to document members or constants.
 113 # e.g.
 114 # /**
 115 #  * struct my_struct - short description
 116 #  * @a: first member
 117 #  * @b: second member
 118 #  *
 119 #  * Longer description
 120 #  */
 121 # struct my_struct {
 122 #     int a;
 123 #     int b;
 124 # /* private: */
 125 #     int c;
 126 # };
 127 #
 128 # All descriptions can be multiline, except the short function description.
 129 #
 130 # You can also add additional sections. When documenting kernel functions you
 131 # should document the "Context:" of the function, e.g. whether the functions
 132 # can be called form interrupts. Unlike other sections you can end it with an
 133 # empty line.
 134 # Example-sections should contain the string EXAMPLE so that they are marked
 135 # appropriately in DocBook.
 136 #
 137 # Example:
 138 # /**
 139 #  * user_function - function that can only be called in user context
 140 #  * @a: some argument
 141 #  * Context: !in_interrupt()
 142 #  *
 143 #  * Some description
 144 #  * Example:
 145 #  *    user_function(22);
 146 #  */
 147 # ...
 148 #
 149 #
 150 # All descriptive text is further processed, scanning for the following special
 151 # patterns, which are highlighted appropriately.
 152 #
 153 # 'funcname()' - function
 154 # '$ENVVAR' - environmental variable
 155 # '&struct_name' - name of a structure (up to two words including 'struct')
 156 # '@parameter' - name of a parameter
 157 # '%CONST' - name of a constant.
 158
 159 my $errors = 0;
 160 my $warnings = 0;
 161 my $anon_struct_union = 0;
 162
 163 # match expressions used to find embedded type information
 164 my $type_constant = '\%([-_\w]+)';
 165 my $type_func = '(\w+)\(\)';
 166 my $type_param = '\@(\w+)';
 167 my $type_struct = '\&((struct\s*)*[_\w]+)';
 168 my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
 169 my $type_env = '(\$\w+)';
 170
 171 # Output conversion substitutions.
 172 #  One for each output format
 173
 174 # these work fairly well
 175 my %highlights_html = ( $type_constant, "<i>\$1</i>",
 176                         $type_func, "<b>\$1</b>",
 177                         $type_struct_xml, "<i>\$1</i>",
 178                         $type_env, "<b><i>\$1</i></b>",
 179                         $type_param, "<tt><b>\$1</b></tt>" );
 180 my $local_lt = "\\\\\\\\lt:";
 181 my $local_gt = "\\\\\\\\gt:";
 182 my $blankline_html = $local_lt . "p" . $local_gt;       # was "<p>"
 183
 184 # XML, docbook format
 185 my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
 186                         $type_constant, "<constant>\$1</constant>",
 187                         $type_func, "<function>\$1</function>",
 188                         $type_struct_xml, "<structname>\$1</structname>",
 189                         $type_env, "<envar>\$1</envar>",
 190                         $type_param, "<parameter>\$1</parameter>" );
 191 my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
 192
 193 # gnome, docbook format
 194 my %highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
 195                          $type_func, "<function>\$1</function>",
 196                          $type_struct, "<structname>\$1</structname>",
 197                          $type_env, "<envar>\$1</envar>",
 198                          $type_param, "<parameter>\$1</parameter>" );
 199 my $blankline_gnome = "</para><para>\n";
 200
 201 # these are pretty rough
 202 my %highlights_man = ( $type_constant, "\$1",
 203                        $type_func, "\\\\fB\$1\\\\fP",
 204                        $type_struct, "\\\\fI\$1\\\\fP",
 205                        $type_param, "\\\\fI\$1\\\\fP" );
 206 my $blankline_man = "";
 207
 208 # text-mode
 209 my %highlights_text = ( $type_constant, "\$1",
 210                         $type_func, "\$1",
 211                         $type_struct, "\$1",
 212                         $type_param, "\$1" );
 213 my $blankline_text = "";
 214
 215
 216 sub usage {
 217     print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -no-doc-sections ]\n";
 218     print "         [ -function funcname [ -function funcname ...] ]\n";
 219     print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
 220     print "         c source file(s) > outputfile\n";
 221     print "         -v : verbose output, more warnings & other info listed\n";
 222     exit 1;
 223 }
 224
 225 # read arguments
 226 if ($#ARGV==-1) {
 227     usage();
 228 }
 229
 230 my $verbose = 0;
 231 my $output_mode = "man";
 232 my $no_doc_sections = 0;
 233 my %highlights = %highlights_man;
 234 my $blankline = $blankline_man;
 235 my $modulename = "Kernel API";
 236 my $function_only = 0;
 237 my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
 238                 'July', 'August', 'September', 'October',
 239                 'November', 'December')[(localtime)[4]] .
 240   " " . ((localtime)[5]+1900);
 241
 242 # Essentially these are globals
 243 # They probably want to be tidied up made more localised or summat.
 244 # CAVEAT EMPTOR!  Some of the others I localised may not want to be which
 245 # could cause "use of undefined value" or other bugs.
 246 my ($function, %function_table,%parametertypes,$declaration_purpose);
 247 my ($type,$declaration_name,$return_type);
 248 my ($newsection,$newcontents,$prototype,$filelist, $brcount, %source_map);
 249
 250 if (defined($ENV{'KBUILD_VERBOSE'})) {
 251         $verbose = "$ENV{'KBUILD_VERBOSE'}";
 252 }
 253
 254 # Generated docbook code is inserted in a template at a point where
 255 # docbook v3.1 requires a non-zero sequence of RefEntry's; see:
 256 # http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
 257 # We keep track of number of generated entries and generate a dummy
 258 # if needs be to ensure the expanded template can be postprocessed
 259 # into html.
 260 my $section_counter = 0;
 261
 262 my $lineprefix="";
 263
 264 # states
 265 # 0 - normal code
 266 # 1 - looking for function name
 267 # 2 - scanning field start.
 268 # 3 - scanning prototype.
 269 # 4 - documentation block
 270 my $state;
 271 my $in_doc_sect;
 272
 273 #declaration types: can be
 274 # 'function', 'struct', 'union', 'enum', 'typedef'
 275 my $decl_type;
 276
 277 my $doc_special = "\@\%\$\&";
 278
 279 my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
 280 my $doc_end = '\*/';
 281 my $doc_com = '\s*\*\s*';
 282 my $doc_decl = $doc_com.'(\w+)';
 283 my $doc_sect = $doc_com.'(['.$doc_special.']?[\w\s]+):(.*)';
 284 my $doc_content = $doc_com.'(.*)';
 285 my $doc_block = $doc_com.'DOC:\s*(.*)?';
 286
 287 my %constants;
 288 my %parameterdescs;
 289 my @parameterlist;
 290 my %sections;
 291 my @sectionlist;
 292
 293 my $contents = "";
 294 my $section_default = "Description";    # default section
 295 my $section_intro = "Introduction";
 296 my $section = $section_default;
 297 my $section_context = "Context";
 298
 299 my $undescribed = "-- undescribed --";
 300
 301 reset_state();
 302
 303 while ($ARGV[0] =~ m/^-(.*)/) {
 304     my $cmd = shift @ARGV;
 305     if ($cmd eq "-html") {
 306         $output_mode = "html";
 307         %highlights = %highlights_html;
 308         $blankline = $blankline_html;
 309     } elsif ($cmd eq "-man") {
 310         $output_mode = "man";
 311         %highlights = %highlights_man;
 312         $blankline = $blankline_man;
 313     } elsif ($cmd eq "-text") {
 314         $output_mode = "text";
 315         %highlights = %highlights_text;
 316         $blankline = $blankline_text;
 317     } elsif ($cmd eq "-docbook") {
 318         $output_mode = "xml";
 319         %highlights = %highlights_xml;
 320         $blankline = $blankline_xml;
 321     } elsif ($cmd eq "-gnome") {
 322         $output_mode = "gnome";
 323         %highlights = %highlights_gnome;
 324         $blankline = $blankline_gnome;
 325     } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
 326         $modulename = shift @ARGV;
 327     } elsif ($cmd eq "-function") { # to only output specific functions
 328         $function_only = 1;
 329         $function = shift @ARGV;
 330         $function_table{$function} = 1;
 331     } elsif ($cmd eq "-nofunction") { # to only output specific functions
 332         $function_only = 2;
 333         $function = shift @ARGV;
 334         $function_table{$function} = 1;
 335     } elsif ($cmd eq "-v") {
 336         $verbose = 1;
 337     } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
 338         usage();
 339     } elsif ($cmd eq '-filelist') {
 340             $filelist = shift @ARGV;
 341     } elsif ($cmd eq '-no-doc-sections') {
 342             $no_doc_sections = 1;
 343     }
 344 }
 345
 346 # get kernel version from env
 347 sub get_kernel_version() {
 348     my $version = 'unknown kernel version';
 349
 350     if (defined($ENV{'KERNELVERSION'})) {
 351         $version = $ENV{'KERNELVERSION'};
 352     }
 353     return $version;
 354 }
 355 my $kernelversion = get_kernel_version();
 356
 357 # generate a sequence of code that will splice in highlighting information
 358 # using the s// operator.
 359 my $dohighlight = "";
 360 foreach my $pattern (keys %highlights) {
 361 #   print STDERR "scanning pattern:$pattern, highlight:($highlights{$pattern})\n";
 362     $dohighlight .=  "\$contents =~ s:$pattern:$highlights{$pattern}:gs;\n";
 363 }
 364
 365 ##
 366 # dumps section contents to arrays/hashes intended for that purpose.
 367 #
 368 sub dump_section {
 369     my $file = shift;
 370     my $name = shift;
 371     my $contents = join "\n", @_;
 372
 373     if ($name =~ m/$type_constant/) {
 374         $name = $1;
 375 #       print STDERR "constant section '$1' = '$contents'\n";
 376         $constants{$name} = $contents;
 377     } elsif ($name =~ m/$type_param/) {
 378 #       print STDERR "parameter def '$1' = '$contents'\n";
 379         $name = $1;
 380         $parameterdescs{$name} = $contents;
 381     } else {
 382 #       print STDERR "other section '$name' = '$contents'\n";
 383         if (defined($sections{$name}) && ($sections{$name} ne "")) {
 384                 print STDERR "Error(${file}:$.): duplicate section name '$name'\n";
 385                 ++$errors;
 386         }
 387         $sections{$name} = $contents;
 388         push @sectionlist, $name;
 389     }
 390 }
 391
 392 ##
 393 # dump DOC: section after checking that it should go out
 394 #
 395 sub dump_doc_section {
 396     my $file = shift;
 397     my $name = shift;
 398     my $contents = join "\n", @_;
 399
 400     if ($no_doc_sections) {
 401         return;
 402     }
 403
 404     if (($function_only == 0) ||
 405         ( $function_only == 1 && defined($function_table{$name})) ||
 406         ( $function_only == 2 && !defined($function_table{$name})))
 407     {
 408         dump_section($file, $name, $contents);
 409         output_blockhead({'sectionlist' => \@sectionlist,
 410                           'sections' => \%sections,
 411                           'module' => $modulename,
 412                           'content-only' => ($function_only != 0), });
 413     }
 414 }
 415
 416 ##
 417 # output function
 418 #
 419 # parameterdescs, a hash.
 420 #  function => "function name"
 421 #  parameterlist => @list of parameters
 422 #  parameterdescs => %parameter descriptions
 423 #  sectionlist => @list of sections
 424 #  sections => %section descriptions
 425 #
 426
 427 sub output_highlight {
 428     my $contents = join "\n",@_;
 429     my $line;
 430
 431 #   DEBUG
 432 #   if (!defined $contents) {
 433 #       use Carp;
 434 #       confess "output_highlight got called with no args?\n";
 435 #   }
 436
 437     if ($output_mode eq "html" || $output_mode eq "xml") {
 438         $contents = local_unescape($contents);
 439         # convert data read & converted thru xml_escape() into &xyz; format:
 440         $contents =~ s/\\\\\\/&/g;
 441     }
 442 #   print STDERR "contents b4:$contents\n";
 443     eval $dohighlight;
 444     die $@ if $@;
 445 #   print STDERR "contents af:$contents\n";
 446
 447     foreach $line (split "\n", $contents) {
 448         if ($line eq ""){
 449             print $lineprefix, local_unescape($blankline);
 450         } else {
 451             $line =~ s/\\\\\\/\&/g;
 452             if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
 453                 print "\\&$line";
 454             } else {
 455                 print $lineprefix, $line;
 456             }
 457         }
 458         print "\n";
 459     }
 460 }
 461
 462 #output sections in html
 463 sub output_section_html(%) {
 464     my %args = %{$_[0]};
 465     my $section;
 466
 467     foreach $section (@{$args{'sectionlist'}}) {
 468         print "<h3>$section</h3>\n";
 469         print "<blockquote>\n";
 470         output_highlight($args{'sections'}{$section});
 471         print "</blockquote>\n";
 472     }
 473 }
 474
 475 # output enum in html
 476 sub output_enum_html(%) {
 477     my %args = %{$_[0]};
 478     my ($parameter);
 479     my $count;
 480     print "<h2>enum ".$args{'enum'}."</h2>\n";
 481
 482     print "<b>enum ".$args{'enum'}."</b> {<br>\n";
 483     $count = 0;
 484     foreach $parameter (@{$args{'parameterlist'}}) {
 485         print " <b>".$parameter."</b>";
 486         if ($count != $#{$args{'parameterlist'}}) {
 487             $count++;
 488             print ",\n";
 489         }
 490         print "<br>";
 491     }
 492     print "};<br>\n";
 493
 494     print "<h3>Constants</h3>\n";
 495     print "<dl>\n";
 496     foreach $parameter (@{$args{'parameterlist'}}) {
 497         print "<dt><b>".$parameter."</b>\n";
 498         print "<dd>";
 499         output_highlight($args{'parameterdescs'}{$parameter});
 500     }
 501     print "</dl>\n";
 502     output_section_html(@_);
 503     print "<hr>\n";
 504 }
 505
 506 # output typedef in html
 507 sub output_typedef_html(%) {
 508     my %args = %{$_[0]};
 509     my ($parameter);
 510     my $count;
 511     print "<h2>typedef ".$args{'typedef'}."</h2>\n";
 512
 513     print "<b>typedef ".$args{'typedef'}."</b>\n";
 514     output_section_html(@_);
 515     print "<hr>\n";
 516 }
 517
 518 # output struct in html
 519 sub output_struct_html(%) {
 520     my %args = %{$_[0]};
 521     my ($parameter);
 522
 523     print "<h2>".$args{'type'}." ".$args{'struct'}. " - " .$args{'purpose'}."</h2>\n";
 524     print "<b>".$args{'type'}." ".$args{'struct'}."</b> {<br>\n";
 525     foreach $parameter (@{$args{'parameterlist'}}) {
 526         if ($parameter =~ /^#/) {
 527                 print "$parameter<br>\n";
 528                 next;
 529         }
 530         my $parameter_name = $parameter;
 531         $parameter_name =~ s/\[.*//;
 532
 533         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 534         $type = $args{'parametertypes'}{$parameter};
 535         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 536             # pointer-to-function
 537             print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
 538         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 539             # bitfield
 540             print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
 541         } else {
 542             print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
 543         }
 544     }
 545     print "};<br>\n";
 546
 547     print "<h3>Members</h3>\n";
 548     print "<dl>\n";
 549     foreach $parameter (@{$args{'parameterlist'}}) {
 550         ($parameter =~ /^#/) && next;
 551
 552         my $parameter_name = $parameter;
 553         $parameter_name =~ s/\[.*//;
 554
 555         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 556         print "<dt><b>".$parameter."</b>\n";
 557         print "<dd>";
 558         output_highlight($args{'parameterdescs'}{$parameter_name});
 559     }
 560     print "</dl>\n";
 561     output_section_html(@_);
 562     print "<hr>\n";
 563 }
 564
 565 # output function in html
 566 sub output_function_html(%) {
 567     my %args = %{$_[0]};
 568     my ($parameter, $section);
 569     my $count;
 570
 571     print "<h2>" .$args{'function'}." - ".$args{'purpose'}."</h2>\n";
 572     print "<i>".$args{'functiontype'}."</i>\n";
 573     print "<b>".$args{'function'}."</b>\n";
 574     print "(";
 575     $count = 0;
 576     foreach $parameter (@{$args{'parameterlist'}}) {
 577         $type = $args{'parametertypes'}{$parameter};
 578         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 579             # pointer-to-function
 580             print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
 581         } else {
 582             print "<i>".$type."</i> <b>".$parameter."</b>";
 583         }
 584         if ($count != $#{$args{'parameterlist'}}) {
 585             $count++;
 586             print ",\n";
 587         }
 588     }
 589     print ")\n";
 590
 591     print "<h3>Arguments</h3>\n";
 592     print "<dl>\n";
 593     foreach $parameter (@{$args{'parameterlist'}}) {
 594         my $parameter_name = $parameter;
 595         $parameter_name =~ s/\[.*//;
 596
 597         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 598         print "<dt><b>".$parameter."</b>\n";
 599         print "<dd>";
 600         output_highlight($args{'parameterdescs'}{$parameter_name});
 601     }
 602     print "</dl>\n";
 603     output_section_html(@_);
 604     print "<hr>\n";
 605 }
 606
 607 # output DOC: block header in html
 608 sub output_blockhead_html(%) {
 609     my %args = %{$_[0]};
 610     my ($parameter, $section);
 611     my $count;
 612
 613     foreach $section (@{$args{'sectionlist'}}) {
 614         print "<h3>$section</h3>\n";
 615         print "<ul>\n";
 616         output_highlight($args{'sections'}{$section});
 617         print "</ul>\n";
 618     }
 619     print "<hr>\n";
 620 }
 621
 622 sub output_section_xml(%) {
 623     my %args = %{$_[0]};
 624     my $section;
 625     # print out each section
 626     $lineprefix="   ";
 627     foreach $section (@{$args{'sectionlist'}}) {
 628         print "<refsect1>\n";
 629         print "<title>$section</title>\n";
 630         if ($section =~ m/EXAMPLE/i) {
 631             print "<informalexample><programlisting>\n";
 632         } else {
 633             print "<para>\n";
 634         }
 635         output_highlight($args{'sections'}{$section});
 636         if ($section =~ m/EXAMPLE/i) {
 637             print "</programlisting></informalexample>\n";
 638         } else {
 639             print "</para>\n";
 640         }
 641         print "</refsect1>\n";
 642     }
 643 }
 644
 645 # output function in XML DocBook
 646 sub output_function_xml(%) {
 647     my %args = %{$_[0]};
 648     my ($parameter, $section);
 649     my $count;
 650     my $id;
 651
 652     $id = "API-".$args{'function'};
 653     $id =~ s/[^A-Za-z0-9]/-/g;
 654
 655     print "<refentry id=\"$id\">\n";
 656     print "<refentryinfo>\n";
 657     print " <title>LINUX</title>\n";
 658     print " <productname>Kernel Hackers Manual</productname>\n";
 659     print " <date>$man_date</date>\n";
 660     print "</refentryinfo>\n";
 661     print "<refmeta>\n";
 662     print " <refentrytitle><phrase>".$args{'function'}."</phrase></refentrytitle>\n";
 663     print " <manvolnum>9</manvolnum>\n";
 664     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 665     print "</refmeta>\n";
 666     print "<refnamediv>\n";
 667     print " <refname>".$args{'function'}."</refname>\n";
 668     print " <refpurpose>\n";
 669     print "  ";
 670     output_highlight ($args{'purpose'});
 671     print " </refpurpose>\n";
 672     print "</refnamediv>\n";
 673
 674     print "<refsynopsisdiv>\n";
 675     print " <title>Synopsis</title>\n";
 676     print "  <funcsynopsis><funcprototype>\n";
 677     print "   <funcdef>".$args{'functiontype'}." ";
 678     print "<function>".$args{'function'}." </function></funcdef>\n";
 679
 680     $count = 0;
 681     if ($#{$args{'parameterlist'}} >= 0) {
 682         foreach $parameter (@{$args{'parameterlist'}}) {
 683             $type = $args{'parametertypes'}{$parameter};
 684             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 685                 # pointer-to-function
 686                 print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
 687                 print "     <funcparams>$2</funcparams></paramdef>\n";
 688             } else {
 689                 print "   <paramdef>".$type;
 690                 print " <parameter>$parameter</parameter></paramdef>\n";
 691             }
 692         }
 693     } else {
 694         print "  <void/>\n";
 695     }
 696     print "  </funcprototype></funcsynopsis>\n";
 697     print "</refsynopsisdiv>\n";
 698
 699     # print parameters
 700     print "<refsect1>\n <title>Arguments</title>\n";
 701     if ($#{$args{'parameterlist'}} >= 0) {
 702         print " <variablelist>\n";
 703         foreach $parameter (@{$args{'parameterlist'}}) {
 704             my $parameter_name = $parameter;
 705             $parameter_name =~ s/\[.*//;
 706
 707             print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
 708             print "   <listitem>\n    <para>\n";
 709             $lineprefix="     ";
 710             output_highlight($args{'parameterdescs'}{$parameter_name});
 711             print "    </para>\n   </listitem>\n  </varlistentry>\n";
 712         }
 713         print " </variablelist>\n";
 714     } else {
 715         print " <para>\n  None\n </para>\n";
 716     }
 717     print "</refsect1>\n";
 718
 719     output_section_xml(@_);
 720     print "</refentry>\n\n";
 721 }
 722
 723 # output struct in XML DocBook
 724 sub output_struct_xml(%) {
 725     my %args = %{$_[0]};
 726     my ($parameter, $section);
 727     my $id;
 728
 729     $id = "API-struct-".$args{'struct'};
 730     $id =~ s/[^A-Za-z0-9]/-/g;
 731
 732     print "<refentry id=\"$id\">\n";
 733     print "<refentryinfo>\n";
 734     print " <title>LINUX</title>\n";
 735     print " <productname>Kernel Hackers Manual</productname>\n";
 736     print " <date>$man_date</date>\n";
 737     print "</refentryinfo>\n";
 738     print "<refmeta>\n";
 739     print " <refentrytitle><phrase>".$args{'type'}." ".$args{'struct'}."</phrase></refentrytitle>\n";
 740     print " <manvolnum>9</manvolnum>\n";
 741     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 742     print "</refmeta>\n";
 743     print "<refnamediv>\n";
 744     print " <refname>".$args{'type'}." ".$args{'struct'}."</refname>\n";
 745     print " <refpurpose>\n";
 746     print "  ";
 747     output_highlight ($args{'purpose'});
 748     print " </refpurpose>\n";
 749     print "</refnamediv>\n";
 750
 751     print "<refsynopsisdiv>\n";
 752     print " <title>Synopsis</title>\n";
 753     print "  <programlisting>\n";
 754     print $args{'type'}." ".$args{'struct'}." {\n";
 755     foreach $parameter (@{$args{'parameterlist'}}) {
 756         if ($parameter =~ /^#/) {
 757             print "$parameter\n";
 758             next;
 759         }
 760
 761         my $parameter_name = $parameter;
 762         $parameter_name =~ s/\[.*//;
 763
 764         defined($args{'parameterdescs'}{$parameter_name}) || next;
 765         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 766         $type = $args{'parametertypes'}{$parameter};
 767         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 768             # pointer-to-function
 769             print "  $1 $parameter) ($2);\n";
 770         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 771             # bitfield
 772             print "  $1 $parameter$2;\n";
 773         } else {
 774             print "  ".$type." ".$parameter.";\n";
 775         }
 776     }
 777     print "};";
 778     print "  </programlisting>\n";
 779     print "</refsynopsisdiv>\n";
 780
 781     print " <refsect1>\n";
 782     print "  <title>Members</title>\n";
 783
 784     print "  <variablelist>\n";
 785     foreach $parameter (@{$args{'parameterlist'}}) {
 786       ($parameter =~ /^#/) && next;
 787
 788       my $parameter_name = $parameter;
 789       $parameter_name =~ s/\[.*//;
 790
 791       defined($args{'parameterdescs'}{$parameter_name}) || next;
 792       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 793       print "    <varlistentry>";
 794       print "      <term>$parameter</term>\n";
 795       print "      <listitem><para>\n";
 796       output_highlight($args{'parameterdescs'}{$parameter_name});
 797       print "      </para></listitem>\n";
 798       print "    </varlistentry>\n";
 799     }
 800     print "  </variablelist>\n";
 801     print " </refsect1>\n";
 802
 803     output_section_xml(@_);
 804
 805     print "</refentry>\n\n";
 806 }
 807
 808 # output enum in XML DocBook
 809 sub output_enum_xml(%) {
 810     my %args = %{$_[0]};
 811     my ($parameter, $section);
 812     my $count;
 813     my $id;
 814
 815     $id = "API-enum-".$args{'enum'};
 816     $id =~ s/[^A-Za-z0-9]/-/g;
 817
 818     print "<refentry id=\"$id\">\n";
 819     print "<refentryinfo>\n";
 820     print " <title>LINUX</title>\n";
 821     print " <productname>Kernel Hackers Manual</productname>\n";
 822     print " <date>$man_date</date>\n";
 823     print "</refentryinfo>\n";
 824     print "<refmeta>\n";
 825     print " <refentrytitle><phrase>enum ".$args{'enum'}."</phrase></refentrytitle>\n";
 826     print " <manvolnum>9</manvolnum>\n";
 827     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 828     print "</refmeta>\n";
 829     print "<refnamediv>\n";
 830     print " <refname>enum ".$args{'enum'}."</refname>\n";
 831     print " <refpurpose>\n";
 832     print "  ";
 833     output_highlight ($args{'purpose'});
 834     print " </refpurpose>\n";
 835     print "</refnamediv>\n";
 836
 837     print "<refsynopsisdiv>\n";
 838     print " <title>Synopsis</title>\n";
 839     print "  <programlisting>\n";
 840     print "enum ".$args{'enum'}." {\n";
 841     $count = 0;
 842     foreach $parameter (@{$args{'parameterlist'}}) {
 843         print "  $parameter";
 844         if ($count != $#{$args{'parameterlist'}}) {
 845             $count++;
 846             print ",";
 847         }
 848         print "\n";
 849     }
 850     print "};";
 851     print "  </programlisting>\n";
 852     print "</refsynopsisdiv>\n";
 853
 854     print "<refsect1>\n";
 855     print " <title>Constants</title>\n";
 856     print "  <variablelist>\n";
 857     foreach $parameter (@{$args{'parameterlist'}}) {
 858       my $parameter_name = $parameter;
 859       $parameter_name =~ s/\[.*//;
 860
 861       print "    <varlistentry>";
 862       print "      <term>$parameter</term>\n";
 863       print "      <listitem><para>\n";
 864       output_highlight($args{'parameterdescs'}{$parameter_name});
 865       print "      </para></listitem>\n";
 866       print "    </varlistentry>\n";
 867     }
 868     print "  </variablelist>\n";
 869     print "</refsect1>\n";
 870
 871     output_section_xml(@_);
 872
 873     print "</refentry>\n\n";
 874 }
 875
 876 # output typedef in XML DocBook
 877 sub output_typedef_xml(%) {
 878     my %args = %{$_[0]};
 879     my ($parameter, $section);
 880     my $id;
 881
 882     $id = "API-typedef-".$args{'typedef'};
 883     $id =~ s/[^A-Za-z0-9]/-/g;
 884
 885     print "<refentry id=\"$id\">\n";
 886     print "<refentryinfo>\n";
 887     print " <title>LINUX</title>\n";
 888     print " <productname>Kernel Hackers Manual</productname>\n";
 889     print " <date>$man_date</date>\n";
 890     print "</refentryinfo>\n";
 891     print "<refmeta>\n";
 892     print " <refentrytitle><phrase>typedef ".$args{'typedef'}."</phrase></refentrytitle>\n";
 893     print " <manvolnum>9</manvolnum>\n";
 894     print "</refmeta>\n";
 895     print "<refnamediv>\n";
 896     print " <refname>typedef ".$args{'typedef'}."</refname>\n";
 897     print " <refpurpose>\n";
 898     print "  ";
 899     output_highlight ($args{'purpose'});
 900     print " </refpurpose>\n";
 901     print "</refnamediv>\n";
 902
 903     print "<refsynopsisdiv>\n";
 904     print " <title>Synopsis</title>\n";
 905     print "  <synopsis>typedef ".$args{'typedef'}.";</synopsis>\n";
 906     print "</refsynopsisdiv>\n";
 907
 908     output_section_xml(@_);
 909
 910     print "</refentry>\n\n";
 911 }
 912
 913 # output in XML DocBook
 914 sub output_blockhead_xml(%) {
 915     my %args = %{$_[0]};
 916     my ($parameter, $section);
 917     my $count;
 918
 919     my $id = $args{'module'};
 920     $id =~ s/[^A-Za-z0-9]/-/g;
 921
 922     # print out each section
 923     $lineprefix="   ";
 924     foreach $section (@{$args{'sectionlist'}}) {
 925         if (!$args{'content-only'}) {
 926                 print "<refsect1>\n <title>$section</title>\n";
 927         }
 928         if ($section =~ m/EXAMPLE/i) {
 929             print "<example><para>\n";
 930         } else {
 931             print "<para>\n";
 932         }
 933         output_highlight($args{'sections'}{$section});
 934         if ($section =~ m/EXAMPLE/i) {
 935             print "</para></example>\n";
 936         } else {
 937             print "</para>";
 938         }
 939         if (!$args{'content-only'}) {
 940                 print "\n</refsect1>\n";
 941         }
 942     }
 943
 944     print "\n\n";
 945 }
 946
 947 # output in XML DocBook
 948 sub output_function_gnome {
 949     my %args = %{$_[0]};
 950     my ($parameter, $section);
 951     my $count;
 952     my $id;
 953
 954     $id = $args{'module'}."-".$args{'function'};
 955     $id =~ s/[^A-Za-z0-9]/-/g;
 956
 957     print "<sect2>\n";
 958     print " <title id=\"$id\">".$args{'function'}."</title>\n";
 959
 960     print "  <funcsynopsis>\n";
 961     print "   <funcdef>".$args{'functiontype'}." ";
 962     print "<function>".$args{'function'}." ";
 963     print "</function></funcdef>\n";
 964
 965     $count = 0;
 966     if ($#{$args{'parameterlist'}} >= 0) {
 967         foreach $parameter (@{$args{'parameterlist'}}) {
 968             $type = $args{'parametertypes'}{$parameter};
 969             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 970                 # pointer-to-function
 971                 print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
 972                 print "     <funcparams>$2</funcparams></paramdef>\n";
 973             } else {
 974                 print "   <paramdef>".$type;
 975                 print " <parameter>$parameter</parameter></paramdef>\n";
 976             }
 977         }
 978     } else {
 979         print "  <void>\n";
 980     }
 981     print "  </funcsynopsis>\n";
 982     if ($#{$args{'parameterlist'}} >= 0) {
 983         print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
 984         print "<tgroup cols=\"2\">\n";
 985         print "<colspec colwidth=\"2*\">\n";
 986         print "<colspec colwidth=\"8*\">\n";
 987         print "<tbody>\n";
 988         foreach $parameter (@{$args{'parameterlist'}}) {
 989             my $parameter_name = $parameter;
 990             $parameter_name =~ s/\[.*//;
 991
 992             print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
 993             print "   <entry>\n";
 994             $lineprefix="     ";
 995             output_highlight($args{'parameterdescs'}{$parameter_name});
 996             print "    </entry></row>\n";
 997         }
 998         print " </tbody></tgroup></informaltable>\n";
 999     } else {
1000         print " <para>\n  None\n </para>\n";
1001     }
1002
1003     # print out each section
1004     $lineprefix="   ";
1005     foreach $section (@{$args{'sectionlist'}}) {
1006         print "<simplesect>\n <title>$section</title>\n";
1007         if ($section =~ m/EXAMPLE/i) {
1008             print "<example><programlisting>\n";
1009         } else {
1010         }
1011         print "<para>\n";
1012         output_highlight($args{'sections'}{$section});
1013         print "</para>\n";
1014         if ($section =~ m/EXAMPLE/i) {
1015             print "</programlisting></example>\n";
1016         } else {
1017         }
1018         print " </simplesect>\n";
1019     }
1020
1021     print "</sect2>\n\n";
1022 }
1023
1024 ##
1025 # output function in man
1026 sub output_function_man(%) {
1027     my %args = %{$_[0]};
1028     my ($parameter, $section);
1029     my $count;
1030
1031     print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1032
1033     print ".SH NAME\n";
1034     print $args{'function'}." \\- ".$args{'purpose'}."\n";
1035
1036     print ".SH SYNOPSIS\n";
1037     if ($args{'functiontype'} ne "") {
1038         print ".B \"".$args{'functiontype'}."\" ".$args{'function'}."\n";
1039     } else {
1040         print ".B \"".$args{'function'}."\n";
1041     }
1042     $count = 0;
1043     my $parenth = "(";
1044     my $post = ",";
1045     foreach my $parameter (@{$args{'parameterlist'}}) {
1046         if ($count == $#{$args{'parameterlist'}}) {
1047             $post = ");";
1048         }
1049         $type = $args{'parametertypes'}{$parameter};
1050         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1051             # pointer-to-function
1052             print ".BI \"".$parenth.$1."\" ".$parameter." \") (".$2.")".$post."\"\n";
1053         } else {
1054             $type =~ s/([^\*])$/$1 /;
1055             print ".BI \"".$parenth.$type."\" ".$parameter." \"".$post."\"\n";
1056         }
1057         $count++;
1058         $parenth = "";
1059     }
1060
1061     print ".SH ARGUMENTS\n";
1062     foreach $parameter (@{$args{'parameterlist'}}) {
1063         my $parameter_name = $parameter;
1064         $parameter_name =~ s/\[.*//;
1065
1066         print ".IP \"".$parameter."\" 12\n";
1067         output_highlight($args{'parameterdescs'}{$parameter_name});
1068     }
1069     foreach $section (@{$args{'sectionlist'}}) {
1070         print ".SH \"", uc $section, "\"\n";
1071         output_highlight($args{'sections'}{$section});
1072     }
1073 }
1074
1075 ##
1076 # output enum in man
1077 sub output_enum_man(%) {
1078     my %args = %{$_[0]};
1079     my ($parameter, $section);
1080     my $count;
1081
1082     print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1083
1084     print ".SH NAME\n";
1085     print "enum ".$args{'enum'}." \\- ".$args{'purpose'}."\n";
1086
1087     print ".SH SYNOPSIS\n";
1088     print "enum ".$args{'enum'}." {\n";
1089     $count = 0;
1090     foreach my $parameter (@{$args{'parameterlist'}}) {
1091         print ".br\n.BI \"    $parameter\"\n";
1092         if ($count == $#{$args{'parameterlist'}}) {
1093             print "\n};\n";
1094             last;
1095         }
1096         else {
1097             print ", \n.br\n";
1098         }
1099         $count++;
1100     }
1101
1102     print ".SH Constants\n";
1103     foreach $parameter (@{$args{'parameterlist'}}) {
1104         my $parameter_name = $parameter;
1105         $parameter_name =~ s/\[.*//;
1106
1107         print ".IP \"".$parameter."\" 12\n";
1108         output_highlight($args{'parameterdescs'}{$parameter_name});
1109     }
1110     foreach $section (@{$args{'sectionlist'}}) {
1111         print ".SH \"$section\"\n";
1112         output_highlight($args{'sections'}{$section});
1113     }
1114 }
1115
1116 ##
1117 # output struct in man
1118 sub output_struct_man(%) {
1119     my %args = %{$_[0]};
1120     my ($parameter, $section);
1121
1122     print ".TH \"$args{'module'}\" 9 \"".$args{'type'}." ".$args{'struct'}."\" \"$man_date\" \"API Manual\" LINUX\n";
1123
1124     print ".SH NAME\n";
1125     print $args{'type'}." ".$args{'struct'}." \\- ".$args{'purpose'}."\n";
1126
1127     print ".SH SYNOPSIS\n";
1128     print $args{'type'}." ".$args{'struct'}." {\n.br\n";
1129
1130     foreach my $parameter (@{$args{'parameterlist'}}) {
1131         if ($parameter =~ /^#/) {
1132             print ".BI \"$parameter\"\n.br\n";
1133             next;
1134         }
1135         my $parameter_name = $parameter;
1136         $parameter_name =~ s/\[.*//;
1137
1138         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1139         $type = $args{'parametertypes'}{$parameter};
1140         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1141             # pointer-to-function
1142             print ".BI \"    ".$1."\" ".$parameter." \") (".$2.")"."\"\n;\n";
1143         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1144             # bitfield
1145             print ".BI \"    ".$1."\ \" ".$parameter.$2." \""."\"\n;\n";
1146         } else {
1147             $type =~ s/([^\*])$/$1 /;
1148             print ".BI \"    ".$type."\" ".$parameter." \""."\"\n;\n";
1149         }
1150         print "\n.br\n";
1151     }
1152     print "};\n.br\n";
1153
1154     print ".SH Members\n";
1155     foreach $parameter (@{$args{'parameterlist'}}) {
1156         ($parameter =~ /^#/) && next;
1157
1158         my $parameter_name = $parameter;
1159         $parameter_name =~ s/\[.*//;
1160
1161         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1162         print ".IP \"".$parameter."\" 12\n";
1163         output_highlight($args{'parameterdescs'}{$parameter_name});
1164     }
1165     foreach $section (@{$args{'sectionlist'}}) {
1166         print ".SH \"$section\"\n";
1167         output_highlight($args{'sections'}{$section});
1168     }
1169 }
1170
1171 ##
1172 # output typedef in man
1173 sub output_typedef_man(%) {
1174     my %args = %{$_[0]};
1175     my ($parameter, $section);
1176
1177     print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1178
1179     print ".SH NAME\n";
1180     print "typedef ".$args{'typedef'}." \\- ".$args{'purpose'}."\n";
1181
1182     foreach $section (@{$args{'sectionlist'}}) {
1183         print ".SH \"$section\"\n";
1184         output_highlight($args{'sections'}{$section});
1185     }
1186 }
1187
1188 sub output_blockhead_man(%) {
1189     my %args = %{$_[0]};
1190     my ($parameter, $section);
1191     my $count;
1192
1193     print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1194
1195     foreach $section (@{$args{'sectionlist'}}) {
1196         print ".SH \"$section\"\n";
1197         output_highlight($args{'sections'}{$section});
1198     }
1199 }
1200
1201 ##
1202 # output in text
1203 sub output_function_text(%) {
1204     my %args = %{$_[0]};
1205     my ($parameter, $section);
1206     my $start;
1207
1208     print "Name:\n\n";
1209     print $args{'function'}." - ".$args{'purpose'}."\n";
1210
1211     print "\nSynopsis:\n\n";
1212     if ($args{'functiontype'} ne "") {
1213         $start = $args{'functiontype'}." ".$args{'function'}." (";
1214     } else {
1215         $start = $args{'function'}." (";
1216     }
1217     print $start;
1218
1219     my $count = 0;
1220     foreach my $parameter (@{$args{'parameterlist'}}) {
1221         $type = $args{'parametertypes'}{$parameter};
1222         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1223             # pointer-to-function
1224             print $1.$parameter.") (".$2;
1225         } else {
1226             print $type." ".$parameter;
1227         }
1228         if ($count != $#{$args{'parameterlist'}}) {
1229             $count++;
1230             print ",\n";
1231             print " " x length($start);
1232         } else {
1233             print ");\n\n";
1234         }
1235     }
1236
1237     print "Arguments:\n\n";
1238     foreach $parameter (@{$args{'parameterlist'}}) {
1239         my $parameter_name = $parameter;
1240         $parameter_name =~ s/\[.*//;
1241
1242         print $parameter."\n\t".$args{'parameterdescs'}{$parameter_name}."\n";
1243     }
1244     output_section_text(@_);
1245 }
1246
1247 #output sections in text
1248 sub output_section_text(%) {
1249     my %args = %{$_[0]};
1250     my $section;
1251
1252     print "\n";
1253     foreach $section (@{$args{'sectionlist'}}) {
1254         print "$section:\n\n";
1255         output_highlight($args{'sections'}{$section});
1256     }
1257     print "\n\n";
1258 }
1259
1260 # output enum in text
1261 sub output_enum_text(%) {
1262     my %args = %{$_[0]};
1263     my ($parameter);
1264     my $count;
1265     print "Enum:\n\n";
1266
1267     print "enum ".$args{'enum'}." - ".$args{'purpose'}."\n\n";
1268     print "enum ".$args{'enum'}." {\n";
1269     $count = 0;
1270     foreach $parameter (@{$args{'parameterlist'}}) {
1271         print "\t$parameter";
1272         if ($count != $#{$args{'parameterlist'}}) {
1273             $count++;
1274             print ",";
1275         }
1276         print "\n";
1277     }
1278     print "};\n\n";
1279
1280     print "Constants:\n\n";
1281     foreach $parameter (@{$args{'parameterlist'}}) {
1282         print "$parameter\n\t";
1283         print $args{'parameterdescs'}{$parameter}."\n";
1284     }
1285
1286     output_section_text(@_);
1287 }
1288
1289 # output typedef in text
1290 sub output_typedef_text(%) {
1291     my %args = %{$_[0]};
1292     my ($parameter);
1293     my $count;
1294     print "Typedef:\n\n";
1295
1296     print "typedef ".$args{'typedef'}." - ".$args{'purpose'}."\n";
1297     output_section_text(@_);
1298 }
1299
1300 # output struct as text
1301 sub output_struct_text(%) {
1302     my %args = %{$_[0]};
1303     my ($parameter);
1304
1305     print $args{'type'}." ".$args{'struct'}." - ".$args{'purpose'}."\n\n";
1306     print $args{'type'}." ".$args{'struct'}." {\n";
1307     foreach $parameter (@{$args{'parameterlist'}}) {
1308         if ($parameter =~ /^#/) {
1309             print "$parameter\n";
1310             next;
1311         }
1312
1313         my $parameter_name = $parameter;
1314         $parameter_name =~ s/\[.*//;
1315
1316         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1317         $type = $args{'parametertypes'}{$parameter};
1318         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1319             # pointer-to-function
1320             print "\t$1 $parameter) ($2);\n";
1321         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1322             # bitfield
1323             print "\t$1 $parameter$2;\n";
1324         } else {
1325             print "\t".$type." ".$parameter.";\n";
1326         }
1327     }
1328     print "};\n\n";
1329
1330     print "Members:\n\n";
1331     foreach $parameter (@{$args{'parameterlist'}}) {
1332         ($parameter =~ /^#/) && next;
1333
1334         my $parameter_name = $parameter;
1335         $parameter_name =~ s/\[.*//;
1336
1337         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1338         print "$parameter\n\t";
1339         print $args{'parameterdescs'}{$parameter_name}."\n";
1340     }
1341     print "\n";
1342     output_section_text(@_);
1343 }
1344
1345 sub output_blockhead_text(%) {
1346     my %args = %{$_[0]};
1347     my ($parameter, $section);
1348
1349     foreach $section (@{$args{'sectionlist'}}) {
1350         print " $section:\n";
1351         print "    -> ";
1352         output_highlight($args{'sections'}{$section});
1353     }
1354 }
1355
1356 ##
1357 # generic output function for all types (function, struct/union, typedef, enum);
1358 # calls the generated, variable output_ function name based on
1359 # functype and output_mode
1360 sub output_declaration {
1361     no strict 'refs';
1362     my $name = shift;
1363     my $functype = shift;
1364     my $func = "output_${functype}_$output_mode";
1365     if (($function_only==0) ||
1366         ( $function_only == 1 && defined($function_table{$name})) ||
1367         ( $function_only == 2 && !defined($function_table{$name})))
1368     {
1369         &$func(@_);
1370         $section_counter++;
1371     }
1372 }
1373
1374 ##
1375 # generic output function - calls the right one based on current output mode.
1376 sub output_blockhead {
1377     no strict 'refs';
1378     my $func = "output_blockhead_".$output_mode;
1379     &$func(@_);
1380     $section_counter++;
1381 }
1382
1383 ##
1384 # takes a declaration (struct, union, enum, typedef) and
1385 # invokes the right handler. NOT called for functions.
1386 sub dump_declaration($$) {
1387     no strict 'refs';
1388     my ($prototype, $file) = @_;
1389     my $func = "dump_".$decl_type;
1390     &$func(@_);
1391 }
1392
1393 sub dump_union($$) {
1394     dump_struct(@_);
1395 }
1396
1397 sub dump_struct($$) {
1398     my $x = shift;
1399     my $file = shift;
1400
1401     if ($x =~/(struct|union)\s+(\w+)\s*{(.*)}/) {
1402         $declaration_name = $2;
1403         my $members = $3;
1404
1405         # ignore embedded structs or unions
1406         $members =~ s/{.*?}//g;
1407
1408         # ignore members marked private:
1409         $members =~ s/\/\*.*?private:.*?public:.*?\*\///gos;
1410         $members =~ s/\/\*.*?private:.*//gos;
1411         # strip comments:
1412         $members =~ s/\/\*.*?\*\///gos;
1413
1414         create_parameterlist($members, ';', $file);
1415
1416         output_declaration($declaration_name,
1417                            'struct',
1418                            {'struct' => $declaration_name,
1419                             'module' => $modulename,
1420                             'parameterlist' => \@parameterlist,
1421                             'parameterdescs' => \%parameterdescs,
1422                             'parametertypes' => \%parametertypes,
1423                             'sectionlist' => \@sectionlist,
1424                             'sections' => \%sections,
1425                             'purpose' => $declaration_purpose,
1426                             'type' => $decl_type
1427                            });
1428     }
1429     else {
1430         print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
1431         ++$errors;
1432     }
1433 }
1434
1435 sub dump_enum($$) {
1436     my $x = shift;
1437     my $file = shift;
1438
1439     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
1440     if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
1441         $declaration_name = $1;
1442         my $members = $2;
1443
1444         foreach my $arg (split ',', $members) {
1445             $arg =~ s/^\s*(\w+).*/$1/;
1446             push @parameterlist, $arg;
1447             if (!$parameterdescs{$arg}) {
1448                 $parameterdescs{$arg} = $undescribed;
1449                 print STDERR "Warning(${file}:$.): Enum value '$arg' ".
1450                     "not described in enum '$declaration_name'\n";
1451             }
1452
1453         }
1454
1455         output_declaration($declaration_name,
1456                            'enum',
1457                            {'enum' => $declaration_name,
1458                             'module' => $modulename,
1459                             'parameterlist' => \@parameterlist,
1460                             'parameterdescs' => \%parameterdescs,
1461                             'sectionlist' => \@sectionlist,
1462                             'sections' => \%sections,
1463                             'purpose' => $declaration_purpose
1464                            });
1465     }
1466     else {
1467         print STDERR "Error(${file}:$.): Cannot parse enum!\n";
1468         ++$errors;
1469     }
1470 }
1471
1472 sub dump_typedef($$) {
1473     my $x = shift;
1474     my $file = shift;
1475
1476     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
1477     while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
1478         $x =~ s/\(*.\)\s*;$/;/;
1479         $x =~ s/\[*.\]\s*;$/;/;
1480     }
1481
1482     if ($x =~ /typedef.*\s+(\w+)\s*;/) {
1483         $declaration_name = $1;
1484
1485         output_declaration($declaration_name,
1486                            'typedef',
1487                            {'typedef' => $declaration_name,
1488                             'module' => $modulename,
1489                             'sectionlist' => \@sectionlist,
1490                             'sections' => \%sections,
1491                             'purpose' => $declaration_purpose
1492                            });
1493     }
1494     else {
1495         print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
1496         ++$errors;
1497     }
1498 }
1499
1500 sub create_parameterlist($$$) {
1501     my $args = shift;
1502     my $splitter = shift;
1503     my $file = shift;
1504     my $type;
1505     my $param;
1506
1507     # temporarily replace commas inside function pointer definition
1508     while ($args =~ /(\([^\),]+),/) {
1509         $args =~ s/(\([^\),]+),/$1#/g;
1510     }
1511
1512     foreach my $arg (split($splitter, $args)) {
1513         # strip comments
1514         $arg =~ s/\/\*.*\*\///;
1515         # strip leading/trailing spaces
1516         $arg =~ s/^\s*//;
1517         $arg =~ s/\s*$//;
1518         $arg =~ s/\s+/ /;
1519
1520         if ($arg =~ /^#/) {
1521             # Treat preprocessor directive as a typeless variable just to fill
1522             # corresponding data structures "correctly". Catch it later in
1523             # output_* subs.
1524             push_parameter($arg, "", $file);
1525         } elsif ($arg =~ m/\(.+\)\s*\(/) {
1526             # pointer-to-function
1527             $arg =~ tr/#/,/;
1528             $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
1529             $param = $1;
1530             $type = $arg;
1531             $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
1532             push_parameter($param, $type, $file);
1533         } elsif ($arg) {
1534             $arg =~ s/\s*:\s*/:/g;
1535             $arg =~ s/\s*\[/\[/g;
1536
1537             my @args = split('\s*,\s*', $arg);
1538             if ($args[0] =~ m/\*/) {
1539                 $args[0] =~ s/(\*+)\s*/ $1/;
1540             }
1541
1542             my @first_arg;
1543             if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
1544                     shift @args;
1545                     push(@first_arg, split('\s+', $1));
1546                     push(@first_arg, $2);
1547             } else {
1548                     @first_arg = split('\s+', shift @args);
1549             }
1550
1551             unshift(@args, pop @first_arg);
1552             $type = join " ", @first_arg;
1553
1554             foreach $param (@args) {
1555                 if ($param =~ m/^(\*+)\s*(.*)/) {
1556                     push_parameter($2, "$type $1", $file);
1557                 }
1558                 elsif ($param =~ m/(.*?):(\d+)/) {
1559                     push_parameter($1, "$type:$2", $file)
1560                 }
1561                 else {
1562                     push_parameter($param, $type, $file);
1563                 }
1564             }
1565         }
1566     }
1567 }
1568
1569 sub push_parameter($$$) {
1570         my $param = shift;
1571         my $type = shift;
1572         my $file = shift;
1573
1574         if (($anon_struct_union == 1) && ($type eq "") &&
1575             ($param eq "}")) {
1576                 return;         # ignore the ending }; from anon. struct/union
1577         }
1578
1579         $anon_struct_union = 0;
1580         my $param_name = $param;
1581         $param_name =~ s/\[.*//;
1582
1583         if ($type eq "" && $param =~ /\.\.\.$/)
1584         {
1585             $type="";
1586             $parameterdescs{$param} = "variable arguments";
1587         }
1588         elsif ($type eq "" && ($param eq "" or $param eq "void"))
1589         {
1590             $type="";
1591             $param="void";
1592             $parameterdescs{void} = "no arguments";
1593         }
1594         elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
1595         # handle unnamed (anonymous) union or struct:
1596         {
1597                 $type = $param;
1598                 $param = "{unnamed_" . $param . "}";
1599                 $parameterdescs{$param} = "anonymous\n";
1600                 $anon_struct_union = 1;
1601         }
1602
1603         # warn if parameter has no description
1604         # (but ignore ones starting with # as these are not parameters
1605         # but inline preprocessor statements);
1606         # also ignore unnamed structs/unions;
1607         if (!$anon_struct_union) {
1608         if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
1609
1610             $parameterdescs{$param_name} = $undescribed;
1611
1612             if (($type eq 'function') || ($type eq 'enum')) {
1613                 print STDERR "Warning(${file}:$.): Function parameter ".
1614                     "or member '$param' not " .
1615                     "described in '$declaration_name'\n";
1616             }
1617             print STDERR "Warning(${file}:$.):".
1618                          " No description found for parameter '$param'\n";
1619             ++$warnings;
1620         }
1621         }
1622
1623         push @parameterlist, $param;
1624         $parametertypes{$param} = $type;
1625 }
1626
1627 ##
1628 # takes a function prototype and the name of the current file being
1629 # processed and spits out all the details stored in the global
1630 # arrays/hashes.
1631 sub dump_function($$) {
1632     my $prototype = shift;
1633     my $file = shift;
1634
1635     $prototype =~ s/^static +//;
1636     $prototype =~ s/^extern +//;
1637     $prototype =~ s/^asmlinkage +//;
1638     $prototype =~ s/^inline +//;
1639     $prototype =~ s/^__inline__ +//;
1640     $prototype =~ s/^__inline +//;
1641     $prototype =~ s/^__always_inline +//;
1642     $prototype =~ s/^noinline +//;
1643     $prototype =~ s/__devinit +//;
1644     $prototype =~ s/^#define\s+//; #ak added
1645     $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
1646
1647     # Yes, this truly is vile.  We are looking for:
1648     # 1. Return type (may be nothing if we're looking at a macro)
1649     # 2. Function name
1650     # 3. Function parameters.
1651     #
1652     # All the while we have to watch out for function pointer parameters
1653     # (which IIRC is what the two sections are for), C types (these
1654     # regexps don't even start to express all the possibilities), and
1655     # so on.
1656     #
1657     # If you mess with these regexps, it's a good idea to check that
1658     # the following functions' documentation still comes out right:
1659     # - parport_register_device (function pointer parameters)
1660     # - atomic_set (macro)
1661     # - pci_match_device, __copy_to_user (long return type)
1662
1663     if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1664         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1665         $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1666         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1667         $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1668         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1669         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1670         $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1671         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1672         $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1673         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1674         $prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1675         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1676         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1677         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1678         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1679         $prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
1680         $return_type = $1;
1681         $declaration_name = $2;
1682         my $args = $3;
1683
1684         create_parameterlist($args, ',', $file);
1685     } else {
1686         print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
1687         ++$errors;
1688         return;
1689     }
1690
1691     output_declaration($declaration_name,
1692                        'function',
1693                        {'function' => $declaration_name,
1694                         'module' => $modulename,
1695                         'functiontype' => $return_type,
1696                         'parameterlist' => \@parameterlist,
1697                         'parameterdescs' => \%parameterdescs,
1698                         'parametertypes' => \%parametertypes,
1699                         'sectionlist' => \@sectionlist,
1700                         'sections' => \%sections,
1701                         'purpose' => $declaration_purpose
1702                        });
1703 }
1704
1705 sub process_file($);
1706
1707 # Read the file that maps relative names to absolute names for
1708 # separate source and object directories and for shadow trees.
1709 if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
1710         my ($relname, $absname);
1711         while(<SOURCE_MAP>) {
1712                 chop();
1713                 ($relname, $absname) = (split())[0..1];
1714                 $relname =~ s:^/+::;
1715                 $source_map{$relname} = $absname;
1716         }
1717         close(SOURCE_MAP);
1718 }
1719
1720 if ($filelist) {
1721         open(FLIST,"<$filelist") or die "Can't open file list $filelist";
1722         while(<FLIST>) {
1723                 chop;
1724                 process_file($_);
1725         }
1726 }
1727
1728 foreach (@ARGV) {
1729     chomp;
1730     process_file($_);
1731 }
1732 if ($verbose && $errors) {
1733   print STDERR "$errors errors\n";
1734 }
1735 if ($verbose && $warnings) {
1736   print STDERR "$warnings warnings\n";
1737 }
1738
1739 exit($errors);
1740
1741 sub reset_state {
1742     $function = "";
1743     %constants = ();
1744     %parameterdescs = ();
1745     %parametertypes = ();
1746     @parameterlist = ();
1747     %sections = ();
1748     @sectionlist = ();
1749     $prototype = "";
1750
1751     $state = 0;
1752 }
1753
1754 sub process_state3_function($$) {
1755     my $x = shift;
1756     my $file = shift;
1757
1758     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1759
1760     if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) {
1761         # do nothing
1762     }
1763     elsif ($x =~ /([^\{]*)/) {
1764         $prototype .= $1;
1765     }
1766     if (($x =~ /\{/) || ($x =~ /\#define/) || ($x =~ /;/)) {
1767         $prototype =~ s@/\*.*?\*/@@gos; # strip comments.
1768         $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1769         $prototype =~ s@^\s+@@gos; # strip leading spaces
1770         dump_function($prototype,$file);
1771         reset_state();
1772     }
1773 }
1774
1775 sub process_state3_type($$) {
1776     my $x = shift;
1777     my $file = shift;
1778
1779     $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1780     $x =~ s@^\s+@@gos; # strip leading spaces
1781     $x =~ s@\s+$@@gos; # strip trailing spaces
1782     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1783
1784     if ($x =~ /^#/) {
1785         # To distinguish preprocessor directive from regular declaration later.
1786         $x .= ";";
1787     }
1788
1789     while (1) {
1790         if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
1791             $prototype .= $1 . $2;
1792             ($2 eq '{') && $brcount++;
1793             ($2 eq '}') && $brcount--;
1794             if (($2 eq ';') && ($brcount == 0)) {
1795                 dump_declaration($prototype,$file);
1796                 reset_state();
1797                 last;
1798             }
1799             $x = $3;
1800         } else {
1801             $prototype .= $x;
1802             last;
1803         }
1804     }
1805 }
1806
1807 # xml_escape: replace <, >, and & in the text stream;
1808 #
1809 # however, formatting controls that are generated internally/locally in the
1810 # kernel-doc script are not escaped here; instead, they begin life like
1811 # $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
1812 # are converted to their mnemonic-expected output, without the 4 * '\' & ':',
1813 # just before actual output; (this is done by local_unescape())
1814 sub xml_escape($) {
1815         my $text = shift;
1816         if (($output_mode eq "text") || ($output_mode eq "man")) {
1817                 return $text;
1818         }
1819         $text =~ s/\&/\\\\\\amp;/g;
1820         $text =~ s/\</\\\\\\lt;/g;
1821         $text =~ s/\>/\\\\\\gt;/g;
1822         return $text;
1823 }
1824
1825 # convert local escape strings to html
1826 # local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
1827 sub local_unescape($) {
1828         my $text = shift;
1829         if (($output_mode eq "text") || ($output_mode eq "man")) {
1830                 return $text;
1831         }
1832         $text =~ s/\\\\\\\\lt:/</g;
1833         $text =~ s/\\\\\\\\gt:/>/g;
1834         return $text;
1835 }
1836
1837 sub process_file($) {
1838     my $file;
1839     my $identifier;
1840     my $func;
1841     my $descr;
1842     my $initial_section_counter = $section_counter;
1843
1844     if (defined($ENV{'SRCTREE'})) {
1845         $file = "$ENV{'SRCTREE'}" . "/" . "@_";
1846     }
1847     else {
1848         $file = "@_";
1849     }
1850     if (defined($source_map{$file})) {
1851         $file = $source_map{$file};
1852     }
1853
1854     if (!open(IN,"<$file")) {
1855         print STDERR "Error: Cannot open file $file\n";
1856         ++$errors;
1857         return;
1858     }
1859
1860     $section_counter = 0;
1861     while (<IN>) {
1862         if ($state == 0) {
1863             if (/$doc_start/o) {
1864                 $state = 1;             # next line is always the function name
1865                 $in_doc_sect = 0;
1866             }
1867         } elsif ($state == 1) { # this line is the function name (always)
1868             if (/$doc_block/o) {
1869                 $state = 4;
1870                 $contents = "";
1871                 if ( $1 eq "" ) {
1872                         $section = $section_intro;
1873                 } else {
1874                         $section = $1;
1875                 }
1876             }
1877             elsif (/$doc_decl/o) {
1878                 $identifier = $1;
1879                 if (/\s*([\w\s]+?)\s*-/) {
1880                     $identifier = $1;
1881                 }
1882
1883                 $state = 2;
1884                 if (/-(.*)/) {
1885                     # strip leading/trailing/multiple spaces
1886                     $descr= $1;
1887                     $descr =~ s/^\s*//;
1888                     $descr =~ s/\s*$//;
1889                     $descr =~ s/\s+/ /;
1890                     $declaration_purpose = xml_escape($descr);
1891                 } else {
1892                     $declaration_purpose = "";
1893                 }
1894
1895                 if (($declaration_purpose eq "") && $verbose) {
1896                         print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
1897                         print STDERR $_;
1898                         ++$warnings;
1899                 }
1900
1901                 if ($identifier =~ m/^struct/) {
1902                     $decl_type = 'struct';
1903                 } elsif ($identifier =~ m/^union/) {
1904                     $decl_type = 'union';
1905                 } elsif ($identifier =~ m/^enum/) {
1906                     $decl_type = 'enum';
1907                 } elsif ($identifier =~ m/^typedef/) {
1908                     $decl_type = 'typedef';
1909                 } else {
1910                     $decl_type = 'function';
1911                 }
1912
1913                 if ($verbose) {
1914                     print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
1915                 }
1916             } else {
1917                 print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
1918                 " - I thought it was a doc line\n";
1919                 ++$warnings;
1920                 $state = 0;
1921             }
1922         } elsif ($state == 2) { # look for head: lines, and include content
1923             if (/$doc_sect/o) {
1924                 $newsection = $1;
1925                 $newcontents = $2;
1926
1927                 if (($contents ne "") && ($contents ne "\n")) {
1928                     if (!$in_doc_sect && $verbose) {
1929                         print STDERR "Warning(${file}:$.): contents before sections\n";
1930                         ++$warnings;
1931                     }
1932                     dump_section($file, $section, xml_escape($contents));
1933                     $section = $section_default;
1934                 }
1935
1936                 $in_doc_sect = 1;
1937                 $contents = $newcontents;
1938                 if ($contents ne "") {
1939                     while ((substr($contents, 0, 1) eq " ") ||
1940                         substr($contents, 0, 1) eq "\t") {
1941                             $contents = substr($contents, 1);
1942                     }
1943                     $contents .= "\n";
1944                 }
1945                 $section = $newsection;
1946             } elsif (/$doc_end/) {
1947
1948                 if ($contents ne "") {
1949                     dump_section($file, $section, xml_escape($contents));
1950                     $section = $section_default;
1951                     $contents = "";
1952                 }
1953                 # look for doc_com + <text> + doc_end:
1954                 if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
1955                     print STDERR "Warning(${file}:$.): suspicious ending line: $_";
1956                     ++$warnings;
1957                 }
1958
1959                 $prototype = "";
1960                 $state = 3;
1961                 $brcount = 0;
1962 #               print STDERR "end of doc comment, looking for prototype\n";
1963             } elsif (/$doc_content/) {
1964                 # miguel-style comment kludge, look for blank lines after
1965                 # @parameter line to signify start of description
1966                 if ($1 eq "" &&
1967                         ($section =~ m/^@/ || $section eq $section_context)) {
1968                     dump_section($file, $section, xml_escape($contents));
1969                     $section = $section_default;
1970                     $contents = "";
1971                 } else {
1972                     $contents .= $1."\n";
1973                 }
1974             } else {
1975                 # i dont know - bad line?  ignore.
1976                 print STDERR "Warning(${file}:$.): bad line: $_";
1977                 ++$warnings;
1978             }
1979         } elsif ($state == 3) { # scanning for function '{' (end of prototype)
1980             if ($decl_type eq 'function') {
1981                 process_state3_function($_, $file);
1982             } else {
1983                 process_state3_type($_, $file);
1984             }
1985         } elsif ($state == 4) {
1986                 # Documentation block
1987                 if (/$doc_block/) {
1988                         dump_doc_section($file, $section, xml_escape($contents));
1989                         $contents = "";
1990                         $function = "";
1991                         %constants = ();
1992                         %parameterdescs = ();
1993                         %parametertypes = ();
1994                         @parameterlist = ();
1995                         %sections = ();
1996                         @sectionlist = ();
1997                         $prototype = "";
1998                         if ( $1 eq "" ) {
1999                                 $section = $section_intro;
2000                         } else {
2001                                 $section = $1;
2002                         }
2003                 }
2004                 elsif (/$doc_end/)
2005                 {
2006                         dump_doc_section($file, $section, xml_escape($contents));
2007                         $contents = "";
2008                         $function = "";
2009                         %constants = ();
2010                         %parameterdescs = ();
2011                         %parametertypes = ();
2012                         @parameterlist = ();
2013                         %sections = ();
2014                         @sectionlist = ();
2015                         $prototype = "";
2016                         $state = 0;
2017                 }
2018                 elsif (/$doc_content/)
2019                 {
2020                         if ( $1 eq "" )
2021                         {
2022                                 $contents .= $blankline;
2023                         }
2024                         else
2025                         {
2026                                 $contents .= $1 . "\n";
2027                         }
2028                 }
2029         }
2030     }
2031     if ($initial_section_counter == $section_counter) {
2032         print STDERR "Warning(${file}): no structured comments found\n";
2033         if ($output_mode eq "xml") {
2034             # The template wants at least one RefEntry here; make one.
2035             print "<refentry>\n";
2036             print " <refnamediv>\n";
2037             print "  <refname>\n";
2038             print "   ${file}\n";
2039             print "  </refname>\n";
2040             print "  <refpurpose>\n";
2041             print "   Document generation inconsistency\n";
2042             print "  </refpurpose>\n";
2043             print " </refnamediv>\n";
2044             print " <refsect1>\n";
2045             print "  <title>\n";
2046             print "   Oops\n";
2047             print "  </title>\n";
2048             print "  <warning>\n";
2049             print "   <para>\n";
2050             print "    The template for this document tried to insert\n";
2051             print "    the structured comment from the file\n";
2052             print "    <filename>${file}</filename> at this point,\n";
2053             print "    but none was found.\n";
2054             print "    This dummy section is inserted to allow\n";
2055             print "    generation to continue.\n";
2056             print "   </para>\n";
2057             print "  </warning>\n";
2058             print " </refsect1>\n";
2059             print "</refentry>\n";
2060         }
2061     }
2062 }