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) 2005-2007  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 $name = shift;
 370     my $contents = join "\n", @_;
 371
 372     if ($name =~ m/$type_constant/) {
 373         $name = $1;
 374 #       print STDERR "constant section '$1' = '$contents'\n";
 375         $constants{$name} = $contents;
 376     } elsif ($name =~ m/$type_param/) {
 377 #       print STDERR "parameter def '$1' = '$contents'\n";
 378         $name = $1;
 379         $parameterdescs{$name} = $contents;
 380     } else {
 381 #       print STDERR "other section '$name' = '$contents'\n";
 382         $sections{$name} = $contents;
 383         push @sectionlist, $name;
 384     }
 385 }
 386
 387 ##
 388 # dump DOC: section after checking that it should go out
 389 #
 390 sub dump_doc_section {
 391     my $name = shift;
 392     my $contents = join "\n", @_;
 393
 394     if ($no_doc_sections) {
 395         return;
 396     }
 397
 398     if (($function_only == 0) ||
 399         ( $function_only == 1 && defined($function_table{$name})) ||
 400         ( $function_only == 2 && !defined($function_table{$name})))
 401     {
 402         dump_section $name, $contents;
 403         output_blockhead({'sectionlist' => \@sectionlist,
 404                           'sections' => \%sections,
 405                           'module' => $modulename,
 406                           'content-only' => ($function_only != 0), });
 407     }
 408 }
 409
 410 ##
 411 # output function
 412 #
 413 # parameterdescs, a hash.
 414 #  function => "function name"
 415 #  parameterlist => @list of parameters
 416 #  parameterdescs => %parameter descriptions
 417 #  sectionlist => @list of sections
 418 #  sections => %section descriptions
 419 #
 420
 421 sub output_highlight {
 422     my $contents = join "\n",@_;
 423     my $line;
 424
 425 #   DEBUG
 426 #   if (!defined $contents) {
 427 #       use Carp;
 428 #       confess "output_highlight got called with no args?\n";
 429 #   }
 430
 431     if ($output_mode eq "html" || $output_mode eq "xml") {
 432         $contents = local_unescape($contents);
 433         # convert data read & converted thru xml_escape() into &xyz; format:
 434         $contents =~ s/\\\\\\/&/g;
 435     }
 436 #   print STDERR "contents b4:$contents\n";
 437     eval $dohighlight;
 438     die $@ if $@;
 439 #   print STDERR "contents af:$contents\n";
 440
 441     foreach $line (split "\n", $contents) {
 442         if ($line eq ""){
 443             print $lineprefix, local_unescape($blankline);
 444         } else {
 445             $line =~ s/\\\\\\/\&/g;
 446             if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
 447                 print "\\&$line";
 448             } else {
 449                 print $lineprefix, $line;
 450             }
 451         }
 452         print "\n";
 453     }
 454 }
 455
 456 #output sections in html
 457 sub output_section_html(%) {
 458     my %args = %{$_[0]};
 459     my $section;
 460
 461     foreach $section (@{$args{'sectionlist'}}) {
 462         print "<h3>$section</h3>\n";
 463         print "<blockquote>\n";
 464         output_highlight($args{'sections'}{$section});
 465         print "</blockquote>\n";
 466     }
 467 }
 468
 469 # output enum in html
 470 sub output_enum_html(%) {
 471     my %args = %{$_[0]};
 472     my ($parameter);
 473     my $count;
 474     print "<h2>enum ".$args{'enum'}."</h2>\n";
 475
 476     print "<b>enum ".$args{'enum'}."</b> {<br>\n";
 477     $count = 0;
 478     foreach $parameter (@{$args{'parameterlist'}}) {
 479         print " <b>".$parameter."</b>";
 480         if ($count != $#{$args{'parameterlist'}}) {
 481             $count++;
 482             print ",\n";
 483         }
 484         print "<br>";
 485     }
 486     print "};<br>\n";
 487
 488     print "<h3>Constants</h3>\n";
 489     print "<dl>\n";
 490     foreach $parameter (@{$args{'parameterlist'}}) {
 491         print "<dt><b>".$parameter."</b>\n";
 492         print "<dd>";
 493         output_highlight($args{'parameterdescs'}{$parameter});
 494     }
 495     print "</dl>\n";
 496     output_section_html(@_);
 497     print "<hr>\n";
 498 }
 499
 500 # output typedef in html
 501 sub output_typedef_html(%) {
 502     my %args = %{$_[0]};
 503     my ($parameter);
 504     my $count;
 505     print "<h2>typedef ".$args{'typedef'}."</h2>\n";
 506
 507     print "<b>typedef ".$args{'typedef'}."</b>\n";
 508     output_section_html(@_);
 509     print "<hr>\n";
 510 }
 511
 512 # output struct in html
 513 sub output_struct_html(%) {
 514     my %args = %{$_[0]};
 515     my ($parameter);
 516
 517     print "<h2>".$args{'type'}." ".$args{'struct'}. " - " .$args{'purpose'}."</h2>\n";
 518     print "<b>".$args{'type'}." ".$args{'struct'}."</b> {<br>\n";
 519     foreach $parameter (@{$args{'parameterlist'}}) {
 520         if ($parameter =~ /^#/) {
 521                 print "$parameter<br>\n";
 522                 next;
 523         }
 524         my $parameter_name = $parameter;
 525         $parameter_name =~ s/\[.*//;
 526
 527         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 528         $type = $args{'parametertypes'}{$parameter};
 529         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 530             # pointer-to-function
 531             print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
 532         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 533             # bitfield
 534             print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
 535         } else {
 536             print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
 537         }
 538     }
 539     print "};<br>\n";
 540
 541     print "<h3>Members</h3>\n";
 542     print "<dl>\n";
 543     foreach $parameter (@{$args{'parameterlist'}}) {
 544         ($parameter =~ /^#/) && next;
 545
 546         my $parameter_name = $parameter;
 547         $parameter_name =~ s/\[.*//;
 548
 549         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 550         print "<dt><b>".$parameter."</b>\n";
 551         print "<dd>";
 552         output_highlight($args{'parameterdescs'}{$parameter_name});
 553     }
 554     print "</dl>\n";
 555     output_section_html(@_);
 556     print "<hr>\n";
 557 }
 558
 559 # output function in html
 560 sub output_function_html(%) {
 561     my %args = %{$_[0]};
 562     my ($parameter, $section);
 563     my $count;
 564
 565     print "<h2>" .$args{'function'}." - ".$args{'purpose'}."</h2>\n";
 566     print "<i>".$args{'functiontype'}."</i>\n";
 567     print "<b>".$args{'function'}."</b>\n";
 568     print "(";
 569     $count = 0;
 570     foreach $parameter (@{$args{'parameterlist'}}) {
 571         $type = $args{'parametertypes'}{$parameter};
 572         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 573             # pointer-to-function
 574             print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
 575         } else {
 576             print "<i>".$type."</i> <b>".$parameter."</b>";
 577         }
 578         if ($count != $#{$args{'parameterlist'}}) {
 579             $count++;
 580             print ",\n";
 581         }
 582     }
 583     print ")\n";
 584
 585     print "<h3>Arguments</h3>\n";
 586     print "<dl>\n";
 587     foreach $parameter (@{$args{'parameterlist'}}) {
 588         my $parameter_name = $parameter;
 589         $parameter_name =~ s/\[.*//;
 590
 591         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 592         print "<dt><b>".$parameter."</b>\n";
 593         print "<dd>";
 594         output_highlight($args{'parameterdescs'}{$parameter_name});
 595     }
 596     print "</dl>\n";
 597     output_section_html(@_);
 598     print "<hr>\n";
 599 }
 600
 601 # output DOC: block header in html
 602 sub output_blockhead_html(%) {
 603     my %args = %{$_[0]};
 604     my ($parameter, $section);
 605     my $count;
 606
 607     foreach $section (@{$args{'sectionlist'}}) {
 608         print "<h3>$section</h3>\n";
 609         print "<ul>\n";
 610         output_highlight($args{'sections'}{$section});
 611         print "</ul>\n";
 612     }
 613     print "<hr>\n";
 614 }
 615
 616 sub output_section_xml(%) {
 617     my %args = %{$_[0]};
 618     my $section;
 619     # print out each section
 620     $lineprefix="   ";
 621     foreach $section (@{$args{'sectionlist'}}) {
 622         print "<refsect1>\n";
 623         print "<title>$section</title>\n";
 624         if ($section =~ m/EXAMPLE/i) {
 625             print "<informalexample><programlisting>\n";
 626         } else {
 627             print "<para>\n";
 628         }
 629         output_highlight($args{'sections'}{$section});
 630         if ($section =~ m/EXAMPLE/i) {
 631             print "</programlisting></informalexample>\n";
 632         } else {
 633             print "</para>\n";
 634         }
 635         print "</refsect1>\n";
 636     }
 637 }
 638
 639 # output function in XML DocBook
 640 sub output_function_xml(%) {
 641     my %args = %{$_[0]};
 642     my ($parameter, $section);
 643     my $count;
 644     my $id;
 645
 646     $id = "API-".$args{'function'};
 647     $id =~ s/[^A-Za-z0-9]/-/g;
 648
 649     print "<refentry id=\"$id\">\n";
 650     print "<refentryinfo>\n";
 651     print " <title>LINUX</title>\n";
 652     print " <productname>Kernel Hackers Manual</productname>\n";
 653     print " <date>$man_date</date>\n";
 654     print "</refentryinfo>\n";
 655     print "<refmeta>\n";
 656     print " <refentrytitle><phrase>".$args{'function'}."</phrase></refentrytitle>\n";
 657     print " <manvolnum>9</manvolnum>\n";
 658     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 659     print "</refmeta>\n";
 660     print "<refnamediv>\n";
 661     print " <refname>".$args{'function'}."</refname>\n";
 662     print " <refpurpose>\n";
 663     print "  ";
 664     output_highlight ($args{'purpose'});
 665     print " </refpurpose>\n";
 666     print "</refnamediv>\n";
 667
 668     print "<refsynopsisdiv>\n";
 669     print " <title>Synopsis</title>\n";
 670     print "  <funcsynopsis><funcprototype>\n";
 671     print "   <funcdef>".$args{'functiontype'}." ";
 672     print "<function>".$args{'function'}." </function></funcdef>\n";
 673
 674     $count = 0;
 675     if ($#{$args{'parameterlist'}} >= 0) {
 676         foreach $parameter (@{$args{'parameterlist'}}) {
 677             $type = $args{'parametertypes'}{$parameter};
 678             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 679                 # pointer-to-function
 680                 print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
 681                 print "     <funcparams>$2</funcparams></paramdef>\n";
 682             } else {
 683                 print "   <paramdef>".$type;
 684                 print " <parameter>$parameter</parameter></paramdef>\n";
 685             }
 686         }
 687     } else {
 688         print "  <void/>\n";
 689     }
 690     print "  </funcprototype></funcsynopsis>\n";
 691     print "</refsynopsisdiv>\n";
 692
 693     # print parameters
 694     print "<refsect1>\n <title>Arguments</title>\n";
 695     if ($#{$args{'parameterlist'}} >= 0) {
 696         print " <variablelist>\n";
 697         foreach $parameter (@{$args{'parameterlist'}}) {
 698             my $parameter_name = $parameter;
 699             $parameter_name =~ s/\[.*//;
 700
 701             print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
 702             print "   <listitem>\n    <para>\n";
 703             $lineprefix="     ";
 704             output_highlight($args{'parameterdescs'}{$parameter_name});
 705             print "    </para>\n   </listitem>\n  </varlistentry>\n";
 706         }
 707         print " </variablelist>\n";
 708     } else {
 709         print " <para>\n  None\n </para>\n";
 710     }
 711     print "</refsect1>\n";
 712
 713     output_section_xml(@_);
 714     print "</refentry>\n\n";
 715 }
 716
 717 # output struct in XML DocBook
 718 sub output_struct_xml(%) {
 719     my %args = %{$_[0]};
 720     my ($parameter, $section);
 721     my $id;
 722
 723     $id = "API-struct-".$args{'struct'};
 724     $id =~ s/[^A-Za-z0-9]/-/g;
 725
 726     print "<refentry id=\"$id\">\n";
 727     print "<refentryinfo>\n";
 728     print " <title>LINUX</title>\n";
 729     print " <productname>Kernel Hackers Manual</productname>\n";
 730     print " <date>$man_date</date>\n";
 731     print "</refentryinfo>\n";
 732     print "<refmeta>\n";
 733     print " <refentrytitle><phrase>".$args{'type'}." ".$args{'struct'}."</phrase></refentrytitle>\n";
 734     print " <manvolnum>9</manvolnum>\n";
 735     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 736     print "</refmeta>\n";
 737     print "<refnamediv>\n";
 738     print " <refname>".$args{'type'}." ".$args{'struct'}."</refname>\n";
 739     print " <refpurpose>\n";
 740     print "  ";
 741     output_highlight ($args{'purpose'});
 742     print " </refpurpose>\n";
 743     print "</refnamediv>\n";
 744
 745     print "<refsynopsisdiv>\n";
 746     print " <title>Synopsis</title>\n";
 747     print "  <programlisting>\n";
 748     print $args{'type'}." ".$args{'struct'}." {\n";
 749     foreach $parameter (@{$args{'parameterlist'}}) {
 750         if ($parameter =~ /^#/) {
 751             print "$parameter\n";
 752             next;
 753         }
 754
 755         my $parameter_name = $parameter;
 756         $parameter_name =~ s/\[.*//;
 757
 758         defined($args{'parameterdescs'}{$parameter_name}) || next;
 759         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 760         $type = $args{'parametertypes'}{$parameter};
 761         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 762             # pointer-to-function
 763             print "  $1 $parameter) ($2);\n";
 764         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
 765             # bitfield
 766             print "  $1 $parameter$2;\n";
 767         } else {
 768             print "  ".$type." ".$parameter.";\n";
 769         }
 770     }
 771     print "};";
 772     print "  </programlisting>\n";
 773     print "</refsynopsisdiv>\n";
 774
 775     print " <refsect1>\n";
 776     print "  <title>Members</title>\n";
 777
 778     print "  <variablelist>\n";
 779     foreach $parameter (@{$args{'parameterlist'}}) {
 780       ($parameter =~ /^#/) && next;
 781
 782       my $parameter_name = $parameter;
 783       $parameter_name =~ s/\[.*//;
 784
 785       defined($args{'parameterdescs'}{$parameter_name}) || next;
 786       ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
 787       print "    <varlistentry>";
 788       print "      <term>$parameter</term>\n";
 789       print "      <listitem><para>\n";
 790       output_highlight($args{'parameterdescs'}{$parameter_name});
 791       print "      </para></listitem>\n";
 792       print "    </varlistentry>\n";
 793     }
 794     print "  </variablelist>\n";
 795     print " </refsect1>\n";
 796
 797     output_section_xml(@_);
 798
 799     print "</refentry>\n\n";
 800 }
 801
 802 # output enum in XML DocBook
 803 sub output_enum_xml(%) {
 804     my %args = %{$_[0]};
 805     my ($parameter, $section);
 806     my $count;
 807     my $id;
 808
 809     $id = "API-enum-".$args{'enum'};
 810     $id =~ s/[^A-Za-z0-9]/-/g;
 811
 812     print "<refentry id=\"$id\">\n";
 813     print "<refentryinfo>\n";
 814     print " <title>LINUX</title>\n";
 815     print " <productname>Kernel Hackers Manual</productname>\n";
 816     print " <date>$man_date</date>\n";
 817     print "</refentryinfo>\n";
 818     print "<refmeta>\n";
 819     print " <refentrytitle><phrase>enum ".$args{'enum'}."</phrase></refentrytitle>\n";
 820     print " <manvolnum>9</manvolnum>\n";
 821     print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
 822     print "</refmeta>\n";
 823     print "<refnamediv>\n";
 824     print " <refname>enum ".$args{'enum'}."</refname>\n";
 825     print " <refpurpose>\n";
 826     print "  ";
 827     output_highlight ($args{'purpose'});
 828     print " </refpurpose>\n";
 829     print "</refnamediv>\n";
 830
 831     print "<refsynopsisdiv>\n";
 832     print " <title>Synopsis</title>\n";
 833     print "  <programlisting>\n";
 834     print "enum ".$args{'enum'}." {\n";
 835     $count = 0;
 836     foreach $parameter (@{$args{'parameterlist'}}) {
 837         print "  $parameter";
 838         if ($count != $#{$args{'parameterlist'}}) {
 839             $count++;
 840             print ",";
 841         }
 842         print "\n";
 843     }
 844     print "};";
 845     print "  </programlisting>\n";
 846     print "</refsynopsisdiv>\n";
 847
 848     print "<refsect1>\n";
 849     print " <title>Constants</title>\n";
 850     print "  <variablelist>\n";
 851     foreach $parameter (@{$args{'parameterlist'}}) {
 852       my $parameter_name = $parameter;
 853       $parameter_name =~ s/\[.*//;
 854
 855       print "    <varlistentry>";
 856       print "      <term>$parameter</term>\n";
 857       print "      <listitem><para>\n";
 858       output_highlight($args{'parameterdescs'}{$parameter_name});
 859       print "      </para></listitem>\n";
 860       print "    </varlistentry>\n";
 861     }
 862     print "  </variablelist>\n";
 863     print "</refsect1>\n";
 864
 865     output_section_xml(@_);
 866
 867     print "</refentry>\n\n";
 868 }
 869
 870 # output typedef in XML DocBook
 871 sub output_typedef_xml(%) {
 872     my %args = %{$_[0]};
 873     my ($parameter, $section);
 874     my $id;
 875
 876     $id = "API-typedef-".$args{'typedef'};
 877     $id =~ s/[^A-Za-z0-9]/-/g;
 878
 879     print "<refentry id=\"$id\">\n";
 880     print "<refentryinfo>\n";
 881     print " <title>LINUX</title>\n";
 882     print " <productname>Kernel Hackers Manual</productname>\n";
 883     print " <date>$man_date</date>\n";
 884     print "</refentryinfo>\n";
 885     print "<refmeta>\n";
 886     print " <refentrytitle><phrase>typedef ".$args{'typedef'}."</phrase></refentrytitle>\n";
 887     print " <manvolnum>9</manvolnum>\n";
 888     print "</refmeta>\n";
 889     print "<refnamediv>\n";
 890     print " <refname>typedef ".$args{'typedef'}."</refname>\n";
 891     print " <refpurpose>\n";
 892     print "  ";
 893     output_highlight ($args{'purpose'});
 894     print " </refpurpose>\n";
 895     print "</refnamediv>\n";
 896
 897     print "<refsynopsisdiv>\n";
 898     print " <title>Synopsis</title>\n";
 899     print "  <synopsis>typedef ".$args{'typedef'}.";</synopsis>\n";
 900     print "</refsynopsisdiv>\n";
 901
 902     output_section_xml(@_);
 903
 904     print "</refentry>\n\n";
 905 }
 906
 907 # output in XML DocBook
 908 sub output_blockhead_xml(%) {
 909     my %args = %{$_[0]};
 910     my ($parameter, $section);
 911     my $count;
 912
 913     my $id = $args{'module'};
 914     $id =~ s/[^A-Za-z0-9]/-/g;
 915
 916     # print out each section
 917     $lineprefix="   ";
 918     foreach $section (@{$args{'sectionlist'}}) {
 919         if (!$args{'content-only'}) {
 920                 print "<refsect1>\n <title>$section</title>\n";
 921         }
 922         if ($section =~ m/EXAMPLE/i) {
 923             print "<example><para>\n";
 924         } else {
 925             print "<para>\n";
 926         }
 927         output_highlight($args{'sections'}{$section});
 928         if ($section =~ m/EXAMPLE/i) {
 929             print "</para></example>\n";
 930         } else {
 931             print "</para>";
 932         }
 933         if (!$args{'content-only'}) {
 934                 print "\n</refsect1>\n";
 935         }
 936     }
 937
 938     print "\n\n";
 939 }
 940
 941 # output in XML DocBook
 942 sub output_function_gnome {
 943     my %args = %{$_[0]};
 944     my ($parameter, $section);
 945     my $count;
 946     my $id;
 947
 948     $id = $args{'module'}."-".$args{'function'};
 949     $id =~ s/[^A-Za-z0-9]/-/g;
 950
 951     print "<sect2>\n";
 952     print " <title id=\"$id\">".$args{'function'}."</title>\n";
 953
 954     print "  <funcsynopsis>\n";
 955     print "   <funcdef>".$args{'functiontype'}." ";
 956     print "<function>".$args{'function'}." ";
 957     print "</function></funcdef>\n";
 958
 959     $count = 0;
 960     if ($#{$args{'parameterlist'}} >= 0) {
 961         foreach $parameter (@{$args{'parameterlist'}}) {
 962             $type = $args{'parametertypes'}{$parameter};
 963             if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
 964                 # pointer-to-function
 965                 print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
 966                 print "     <funcparams>$2</funcparams></paramdef>\n";
 967             } else {
 968                 print "   <paramdef>".$type;
 969                 print " <parameter>$parameter</parameter></paramdef>\n";
 970             }
 971         }
 972     } else {
 973         print "  <void>\n";
 974     }
 975     print "  </funcsynopsis>\n";
 976     if ($#{$args{'parameterlist'}} >= 0) {
 977         print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
 978         print "<tgroup cols=\"2\">\n";
 979         print "<colspec colwidth=\"2*\">\n";
 980         print "<colspec colwidth=\"8*\">\n";
 981         print "<tbody>\n";
 982         foreach $parameter (@{$args{'parameterlist'}}) {
 983             my $parameter_name = $parameter;
 984             $parameter_name =~ s/\[.*//;
 985
 986             print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
 987             print "   <entry>\n";
 988             $lineprefix="     ";
 989             output_highlight($args{'parameterdescs'}{$parameter_name});
 990             print "    </entry></row>\n";
 991         }
 992         print " </tbody></tgroup></informaltable>\n";
 993     } else {
 994         print " <para>\n  None\n </para>\n";
 995     }
 996
 997     # print out each section
 998     $lineprefix="   ";
 999     foreach $section (@{$args{'sectionlist'}}) {
1000         print "<simplesect>\n <title>$section</title>\n";
1001         if ($section =~ m/EXAMPLE/i) {
1002             print "<example><programlisting>\n";
1003         } else {
1004         }
1005         print "<para>\n";
1006         output_highlight($args{'sections'}{$section});
1007         print "</para>\n";
1008         if ($section =~ m/EXAMPLE/i) {
1009             print "</programlisting></example>\n";
1010         } else {
1011         }
1012         print " </simplesect>\n";
1013     }
1014
1015     print "</sect2>\n\n";
1016 }
1017
1018 ##
1019 # output function in man
1020 sub output_function_man(%) {
1021     my %args = %{$_[0]};
1022     my ($parameter, $section);
1023     my $count;
1024
1025     print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1026
1027     print ".SH NAME\n";
1028     print $args{'function'}." \\- ".$args{'purpose'}."\n";
1029
1030     print ".SH SYNOPSIS\n";
1031     if ($args{'functiontype'} ne "") {
1032         print ".B \"".$args{'functiontype'}."\" ".$args{'function'}."\n";
1033     } else {
1034         print ".B \"".$args{'function'}."\n";
1035     }
1036     $count = 0;
1037     my $parenth = "(";
1038     my $post = ",";
1039     foreach my $parameter (@{$args{'parameterlist'}}) {
1040         if ($count == $#{$args{'parameterlist'}}) {
1041             $post = ");";
1042         }
1043         $type = $args{'parametertypes'}{$parameter};
1044         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1045             # pointer-to-function
1046             print ".BI \"".$parenth.$1."\" ".$parameter." \") (".$2.")".$post."\"\n";
1047         } else {
1048             $type =~ s/([^\*])$/$1 /;
1049             print ".BI \"".$parenth.$type."\" ".$parameter." \"".$post."\"\n";
1050         }
1051         $count++;
1052         $parenth = "";
1053     }
1054
1055     print ".SH ARGUMENTS\n";
1056     foreach $parameter (@{$args{'parameterlist'}}) {
1057         my $parameter_name = $parameter;
1058         $parameter_name =~ s/\[.*//;
1059
1060         print ".IP \"".$parameter."\" 12\n";
1061         output_highlight($args{'parameterdescs'}{$parameter_name});
1062     }
1063     foreach $section (@{$args{'sectionlist'}}) {
1064         print ".SH \"", uc $section, "\"\n";
1065         output_highlight($args{'sections'}{$section});
1066     }
1067 }
1068
1069 ##
1070 # output enum in man
1071 sub output_enum_man(%) {
1072     my %args = %{$_[0]};
1073     my ($parameter, $section);
1074     my $count;
1075
1076     print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1077
1078     print ".SH NAME\n";
1079     print "enum ".$args{'enum'}." \\- ".$args{'purpose'}."\n";
1080
1081     print ".SH SYNOPSIS\n";
1082     print "enum ".$args{'enum'}." {\n";
1083     $count = 0;
1084     foreach my $parameter (@{$args{'parameterlist'}}) {
1085         print ".br\n.BI \"    $parameter\"\n";
1086         if ($count == $#{$args{'parameterlist'}}) {
1087             print "\n};\n";
1088             last;
1089         }
1090         else {
1091             print ", \n.br\n";
1092         }
1093         $count++;
1094     }
1095
1096     print ".SH Constants\n";
1097     foreach $parameter (@{$args{'parameterlist'}}) {
1098         my $parameter_name = $parameter;
1099         $parameter_name =~ s/\[.*//;
1100
1101         print ".IP \"".$parameter."\" 12\n";
1102         output_highlight($args{'parameterdescs'}{$parameter_name});
1103     }
1104     foreach $section (@{$args{'sectionlist'}}) {
1105         print ".SH \"$section\"\n";
1106         output_highlight($args{'sections'}{$section});
1107     }
1108 }
1109
1110 ##
1111 # output struct in man
1112 sub output_struct_man(%) {
1113     my %args = %{$_[0]};
1114     my ($parameter, $section);
1115
1116     print ".TH \"$args{'module'}\" 9 \"".$args{'type'}." ".$args{'struct'}."\" \"$man_date\" \"API Manual\" LINUX\n";
1117
1118     print ".SH NAME\n";
1119     print $args{'type'}." ".$args{'struct'}." \\- ".$args{'purpose'}."\n";
1120
1121     print ".SH SYNOPSIS\n";
1122     print $args{'type'}." ".$args{'struct'}." {\n.br\n";
1123
1124     foreach my $parameter (@{$args{'parameterlist'}}) {
1125         if ($parameter =~ /^#/) {
1126             print ".BI \"$parameter\"\n.br\n";
1127             next;
1128         }
1129         my $parameter_name = $parameter;
1130         $parameter_name =~ s/\[.*//;
1131
1132         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1133         $type = $args{'parametertypes'}{$parameter};
1134         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1135             # pointer-to-function
1136             print ".BI \"    ".$1."\" ".$parameter." \") (".$2.")"."\"\n;\n";
1137         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1138             # bitfield
1139             print ".BI \"    ".$1."\ \" ".$parameter.$2." \""."\"\n;\n";
1140         } else {
1141             $type =~ s/([^\*])$/$1 /;
1142             print ".BI \"    ".$type."\" ".$parameter." \""."\"\n;\n";
1143         }
1144         print "\n.br\n";
1145     }
1146     print "};\n.br\n";
1147
1148     print ".SH Members\n";
1149     foreach $parameter (@{$args{'parameterlist'}}) {
1150         ($parameter =~ /^#/) && next;
1151
1152         my $parameter_name = $parameter;
1153         $parameter_name =~ s/\[.*//;
1154
1155         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1156         print ".IP \"".$parameter."\" 12\n";
1157         output_highlight($args{'parameterdescs'}{$parameter_name});
1158     }
1159     foreach $section (@{$args{'sectionlist'}}) {
1160         print ".SH \"$section\"\n";
1161         output_highlight($args{'sections'}{$section});
1162     }
1163 }
1164
1165 ##
1166 # output typedef in man
1167 sub output_typedef_man(%) {
1168     my %args = %{$_[0]};
1169     my ($parameter, $section);
1170
1171     print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1172
1173     print ".SH NAME\n";
1174     print "typedef ".$args{'typedef'}." \\- ".$args{'purpose'}."\n";
1175
1176     foreach $section (@{$args{'sectionlist'}}) {
1177         print ".SH \"$section\"\n";
1178         output_highlight($args{'sections'}{$section});
1179     }
1180 }
1181
1182 sub output_blockhead_man(%) {
1183     my %args = %{$_[0]};
1184     my ($parameter, $section);
1185     my $count;
1186
1187     print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1188
1189     foreach $section (@{$args{'sectionlist'}}) {
1190         print ".SH \"$section\"\n";
1191         output_highlight($args{'sections'}{$section});
1192     }
1193 }
1194
1195 ##
1196 # output in text
1197 sub output_function_text(%) {
1198     my %args = %{$_[0]};
1199     my ($parameter, $section);
1200     my $start;
1201
1202     print "Name:\n\n";
1203     print $args{'function'}." - ".$args{'purpose'}."\n";
1204
1205     print "\nSynopsis:\n\n";
1206     if ($args{'functiontype'} ne "") {
1207         $start = $args{'functiontype'}." ".$args{'function'}." (";
1208     } else {
1209         $start = $args{'function'}." (";
1210     }
1211     print $start;
1212
1213     my $count = 0;
1214     foreach my $parameter (@{$args{'parameterlist'}}) {
1215         $type = $args{'parametertypes'}{$parameter};
1216         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1217             # pointer-to-function
1218             print $1.$parameter.") (".$2;
1219         } else {
1220             print $type." ".$parameter;
1221         }
1222         if ($count != $#{$args{'parameterlist'}}) {
1223             $count++;
1224             print ",\n";
1225             print " " x length($start);
1226         } else {
1227             print ");\n\n";
1228         }
1229     }
1230
1231     print "Arguments:\n\n";
1232     foreach $parameter (@{$args{'parameterlist'}}) {
1233         my $parameter_name = $parameter;
1234         $parameter_name =~ s/\[.*//;
1235
1236         print $parameter."\n\t".$args{'parameterdescs'}{$parameter_name}."\n";
1237     }
1238     output_section_text(@_);
1239 }
1240
1241 #output sections in text
1242 sub output_section_text(%) {
1243     my %args = %{$_[0]};
1244     my $section;
1245
1246     print "\n";
1247     foreach $section (@{$args{'sectionlist'}}) {
1248         print "$section:\n\n";
1249         output_highlight($args{'sections'}{$section});
1250     }
1251     print "\n\n";
1252 }
1253
1254 # output enum in text
1255 sub output_enum_text(%) {
1256     my %args = %{$_[0]};
1257     my ($parameter);
1258     my $count;
1259     print "Enum:\n\n";
1260
1261     print "enum ".$args{'enum'}." - ".$args{'purpose'}."\n\n";
1262     print "enum ".$args{'enum'}." {\n";
1263     $count = 0;
1264     foreach $parameter (@{$args{'parameterlist'}}) {
1265         print "\t$parameter";
1266         if ($count != $#{$args{'parameterlist'}}) {
1267             $count++;
1268             print ",";
1269         }
1270         print "\n";
1271     }
1272     print "};\n\n";
1273
1274     print "Constants:\n\n";
1275     foreach $parameter (@{$args{'parameterlist'}}) {
1276         print "$parameter\n\t";
1277         print $args{'parameterdescs'}{$parameter}."\n";
1278     }
1279
1280     output_section_text(@_);
1281 }
1282
1283 # output typedef in text
1284 sub output_typedef_text(%) {
1285     my %args = %{$_[0]};
1286     my ($parameter);
1287     my $count;
1288     print "Typedef:\n\n";
1289
1290     print "typedef ".$args{'typedef'}." - ".$args{'purpose'}."\n";
1291     output_section_text(@_);
1292 }
1293
1294 # output struct as text
1295 sub output_struct_text(%) {
1296     my %args = %{$_[0]};
1297     my ($parameter);
1298
1299     print $args{'type'}." ".$args{'struct'}." - ".$args{'purpose'}."\n\n";
1300     print $args{'type'}." ".$args{'struct'}." {\n";
1301     foreach $parameter (@{$args{'parameterlist'}}) {
1302         if ($parameter =~ /^#/) {
1303             print "$parameter\n";
1304             next;
1305         }
1306
1307         my $parameter_name = $parameter;
1308         $parameter_name =~ s/\[.*//;
1309
1310         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1311         $type = $args{'parametertypes'}{$parameter};
1312         if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1313             # pointer-to-function
1314             print "\t$1 $parameter) ($2);\n";
1315         } elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1316             # bitfield
1317             print "\t$1 $parameter$2;\n";
1318         } else {
1319             print "\t".$type." ".$parameter.";\n";
1320         }
1321     }
1322     print "};\n\n";
1323
1324     print "Members:\n\n";
1325     foreach $parameter (@{$args{'parameterlist'}}) {
1326         ($parameter =~ /^#/) && next;
1327
1328         my $parameter_name = $parameter;
1329         $parameter_name =~ s/\[.*//;
1330
1331         ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1332         print "$parameter\n\t";
1333         print $args{'parameterdescs'}{$parameter_name}."\n";
1334     }
1335     print "\n";
1336     output_section_text(@_);
1337 }
1338
1339 sub output_blockhead_text(%) {
1340     my %args = %{$_[0]};
1341     my ($parameter, $section);
1342
1343     foreach $section (@{$args{'sectionlist'}}) {
1344         print " $section:\n";
1345         print "    -> ";
1346         output_highlight($args{'sections'}{$section});
1347     }
1348 }
1349
1350 ##
1351 # generic output function for all types (function, struct/union, typedef, enum);
1352 # calls the generated, variable output_ function name based on
1353 # functype and output_mode
1354 sub output_declaration {
1355     no strict 'refs';
1356     my $name = shift;
1357     my $functype = shift;
1358     my $func = "output_${functype}_$output_mode";
1359     if (($function_only==0) ||
1360         ( $function_only == 1 && defined($function_table{$name})) ||
1361         ( $function_only == 2 && !defined($function_table{$name})))
1362     {
1363         &$func(@_);
1364         $section_counter++;
1365     }
1366 }
1367
1368 ##
1369 # generic output function - calls the right one based on current output mode.
1370 sub output_blockhead {
1371     no strict 'refs';
1372     my $func = "output_blockhead_".$output_mode;
1373     &$func(@_);
1374     $section_counter++;
1375 }
1376
1377 ##
1378 # takes a declaration (struct, union, enum, typedef) and
1379 # invokes the right handler. NOT called for functions.
1380 sub dump_declaration($$) {
1381     no strict 'refs';
1382     my ($prototype, $file) = @_;
1383     my $func = "dump_".$decl_type;
1384     &$func(@_);
1385 }
1386
1387 sub dump_union($$) {
1388     dump_struct(@_);
1389 }
1390
1391 sub dump_struct($$) {
1392     my $x = shift;
1393     my $file = shift;
1394
1395     if ($x =~/(struct|union)\s+(\w+)\s*{(.*)}/) {
1396         $declaration_name = $2;
1397         my $members = $3;
1398
1399         # ignore embedded structs or unions
1400         $members =~ s/{.*?}//g;
1401
1402         # ignore members marked private:
1403         $members =~ s/\/\*.*?private:.*?public:.*?\*\///gos;
1404         $members =~ s/\/\*.*?private:.*//gos;
1405         # strip comments:
1406         $members =~ s/\/\*.*?\*\///gos;
1407
1408         create_parameterlist($members, ';', $file);
1409
1410         output_declaration($declaration_name,
1411                            'struct',
1412                            {'struct' => $declaration_name,
1413                             'module' => $modulename,
1414                             'parameterlist' => \@parameterlist,
1415                             'parameterdescs' => \%parameterdescs,
1416                             'parametertypes' => \%parametertypes,
1417                             'sectionlist' => \@sectionlist,
1418                             'sections' => \%sections,
1419                             'purpose' => $declaration_purpose,
1420                             'type' => $decl_type
1421                            });
1422     }
1423     else {
1424         print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
1425         ++$errors;
1426     }
1427 }
1428
1429 sub dump_enum($$) {
1430     my $x = shift;
1431     my $file = shift;
1432
1433     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
1434     if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
1435         $declaration_name = $1;
1436         my $members = $2;
1437
1438         foreach my $arg (split ',', $members) {
1439             $arg =~ s/^\s*(\w+).*/$1/;
1440             push @parameterlist, $arg;
1441             if (!$parameterdescs{$arg}) {
1442                 $parameterdescs{$arg} = $undescribed;
1443                 print STDERR "Warning(${file}:$.): Enum value '$arg' ".
1444                     "not described in enum '$declaration_name'\n";
1445             }
1446
1447         }
1448
1449         output_declaration($declaration_name,
1450                            'enum',
1451                            {'enum' => $declaration_name,
1452                             'module' => $modulename,
1453                             'parameterlist' => \@parameterlist,
1454                             'parameterdescs' => \%parameterdescs,
1455                             'sectionlist' => \@sectionlist,
1456                             'sections' => \%sections,
1457                             'purpose' => $declaration_purpose
1458                            });
1459     }
1460     else {
1461         print STDERR "Error(${file}:$.): Cannot parse enum!\n";
1462         ++$errors;
1463     }
1464 }
1465
1466 sub dump_typedef($$) {
1467     my $x = shift;
1468     my $file = shift;
1469
1470     $x =~ s@/\*.*?\*/@@gos;     # strip comments.
1471     while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
1472         $x =~ s/\(*.\)\s*;$/;/;
1473         $x =~ s/\[*.\]\s*;$/;/;
1474     }
1475
1476     if ($x =~ /typedef.*\s+(\w+)\s*;/) {
1477         $declaration_name = $1;
1478
1479         output_declaration($declaration_name,
1480                            'typedef',
1481                            {'typedef' => $declaration_name,
1482                             'module' => $modulename,
1483                             'sectionlist' => \@sectionlist,
1484                             'sections' => \%sections,
1485                             'purpose' => $declaration_purpose
1486                            });
1487     }
1488     else {
1489         print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
1490         ++$errors;
1491     }
1492 }
1493
1494 sub create_parameterlist($$$) {
1495     my $args = shift;
1496     my $splitter = shift;
1497     my $file = shift;
1498     my $type;
1499     my $param;
1500
1501     # temporarily replace commas inside function pointer definition
1502     while ($args =~ /(\([^\),]+),/) {
1503         $args =~ s/(\([^\),]+),/$1#/g;
1504     }
1505
1506     foreach my $arg (split($splitter, $args)) {
1507         # strip comments
1508         $arg =~ s/\/\*.*\*\///;
1509         # strip leading/trailing spaces
1510         $arg =~ s/^\s*//;
1511         $arg =~ s/\s*$//;
1512         $arg =~ s/\s+/ /;
1513
1514         if ($arg =~ /^#/) {
1515             # Treat preprocessor directive as a typeless variable just to fill
1516             # corresponding data structures "correctly". Catch it later in
1517             # output_* subs.
1518             push_parameter($arg, "", $file);
1519         } elsif ($arg =~ m/\(.+\)\s*\(/) {
1520             # pointer-to-function
1521             $arg =~ tr/#/,/;
1522             $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
1523             $param = $1;
1524             $type = $arg;
1525             $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
1526             push_parameter($param, $type, $file);
1527         } elsif ($arg) {
1528             $arg =~ s/\s*:\s*/:/g;
1529             $arg =~ s/\s*\[/\[/g;
1530
1531             my @args = split('\s*,\s*', $arg);
1532             if ($args[0] =~ m/\*/) {
1533                 $args[0] =~ s/(\*+)\s*/ $1/;
1534             }
1535
1536             my @first_arg;
1537             if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
1538                     shift @args;
1539                     push(@first_arg, split('\s+', $1));
1540                     push(@first_arg, $2);
1541             } else {
1542                     @first_arg = split('\s+', shift @args);
1543             }
1544
1545             unshift(@args, pop @first_arg);
1546             $type = join " ", @first_arg;
1547
1548             foreach $param (@args) {
1549                 if ($param =~ m/^(\*+)\s*(.*)/) {
1550                     push_parameter($2, "$type $1", $file);
1551                 }
1552                 elsif ($param =~ m/(.*?):(\d+)/) {
1553                     push_parameter($1, "$type:$2", $file)
1554                 }
1555                 else {
1556                     push_parameter($param, $type, $file);
1557                 }
1558             }
1559         }
1560     }
1561 }
1562
1563 sub push_parameter($$$) {
1564         my $param = shift;
1565         my $type = shift;
1566         my $file = shift;
1567
1568         if (($anon_struct_union == 1) && ($type eq "") &&
1569             ($param eq "}")) {
1570                 return;         # ignore the ending }; from anon. struct/union
1571         }
1572
1573         $anon_struct_union = 0;
1574         my $param_name = $param;
1575         $param_name =~ s/\[.*//;
1576
1577         if ($type eq "" && $param =~ /\.\.\.$/)
1578         {
1579             $type="";
1580             $parameterdescs{$param} = "variable arguments";
1581         }
1582         elsif ($type eq "" && ($param eq "" or $param eq "void"))
1583         {
1584             $type="";
1585             $param="void";
1586             $parameterdescs{void} = "no arguments";
1587         }
1588         elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
1589         # handle unnamed (anonymous) union or struct:
1590         {
1591                 $type = $param;
1592                 $param = "{unnamed_" . $param . "}";
1593                 $parameterdescs{$param} = "anonymous\n";
1594                 $anon_struct_union = 1;
1595         }
1596
1597         # warn if parameter has no description
1598         # (but ignore ones starting with # as these are not parameters
1599         # but inline preprocessor statements);
1600         # also ignore unnamed structs/unions;
1601         if (!$anon_struct_union) {
1602         if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
1603
1604             $parameterdescs{$param_name} = $undescribed;
1605
1606             if (($type eq 'function') || ($type eq 'enum')) {
1607                 print STDERR "Warning(${file}:$.): Function parameter ".
1608                     "or member '$param' not " .
1609                     "described in '$declaration_name'\n";
1610             }
1611             print STDERR "Warning(${file}:$.):".
1612                          " No description found for parameter '$param'\n";
1613             ++$warnings;
1614         }
1615         }
1616
1617         push @parameterlist, $param;
1618         $parametertypes{$param} = $type;
1619 }
1620
1621 ##
1622 # takes a function prototype and the name of the current file being
1623 # processed and spits out all the details stored in the global
1624 # arrays/hashes.
1625 sub dump_function($$) {
1626     my $prototype = shift;
1627     my $file = shift;
1628
1629     $prototype =~ s/^static +//;
1630     $prototype =~ s/^extern +//;
1631     $prototype =~ s/^asmlinkage +//;
1632     $prototype =~ s/^inline +//;
1633     $prototype =~ s/^__inline__ +//;
1634     $prototype =~ s/^__inline +//;
1635     $prototype =~ s/^__always_inline +//;
1636     $prototype =~ s/^noinline +//;
1637     $prototype =~ s/__devinit +//;
1638     $prototype =~ s/^#define\s+//; #ak added
1639     $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
1640
1641     # Yes, this truly is vile.  We are looking for:
1642     # 1. Return type (may be nothing if we're looking at a macro)
1643     # 2. Function name
1644     # 3. Function parameters.
1645     #
1646     # All the while we have to watch out for function pointer parameters
1647     # (which IIRC is what the two sections are for), C types (these
1648     # regexps don't even start to express all the possibilities), and
1649     # so on.
1650     #
1651     # If you mess with these regexps, it's a good idea to check that
1652     # the following functions' documentation still comes out right:
1653     # - parport_register_device (function pointer parameters)
1654     # - atomic_set (macro)
1655     # - pci_match_device, __copy_to_user (long return type)
1656
1657     if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1658         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1659         $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1660         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1661         $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1662         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1663         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1664         $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1665         $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1666         $prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1667         $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1668         $prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1669         $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1670         $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1671         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1672         $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1673         $prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
1674         $return_type = $1;
1675         $declaration_name = $2;
1676         my $args = $3;
1677
1678         create_parameterlist($args, ',', $file);
1679     } else {
1680         print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
1681         ++$errors;
1682         return;
1683     }
1684
1685     output_declaration($declaration_name,
1686                        'function',
1687                        {'function' => $declaration_name,
1688                         'module' => $modulename,
1689                         'functiontype' => $return_type,
1690                         'parameterlist' => \@parameterlist,
1691                         'parameterdescs' => \%parameterdescs,
1692                         'parametertypes' => \%parametertypes,
1693                         'sectionlist' => \@sectionlist,
1694                         'sections' => \%sections,
1695                         'purpose' => $declaration_purpose
1696                        });
1697 }
1698
1699 sub process_file($);
1700
1701 # Read the file that maps relative names to absolute names for
1702 # separate source and object directories and for shadow trees.
1703 if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
1704         my ($relname, $absname);
1705         while(<SOURCE_MAP>) {
1706                 chop();
1707                 ($relname, $absname) = (split())[0..1];
1708                 $relname =~ s:^/+::;
1709                 $source_map{$relname} = $absname;
1710         }
1711         close(SOURCE_MAP);
1712 }
1713
1714 if ($filelist) {
1715         open(FLIST,"<$filelist") or die "Can't open file list $filelist";
1716         while(<FLIST>) {
1717                 chop;
1718                 process_file($_);
1719         }
1720 }
1721
1722 foreach (@ARGV) {
1723     chomp;
1724     process_file($_);
1725 }
1726 if ($verbose && $errors) {
1727   print STDERR "$errors errors\n";
1728 }
1729 if ($verbose && $warnings) {
1730   print STDERR "$warnings warnings\n";
1731 }
1732
1733 exit($errors);
1734
1735 sub reset_state {
1736     $function = "";
1737     %constants = ();
1738     %parameterdescs = ();
1739     %parametertypes = ();
1740     @parameterlist = ();
1741     %sections = ();
1742     @sectionlist = ();
1743     $prototype = "";
1744
1745     $state = 0;
1746 }
1747
1748 sub process_state3_function($$) {
1749     my $x = shift;
1750     my $file = shift;
1751
1752     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1753
1754     if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) {
1755         # do nothing
1756     }
1757     elsif ($x =~ /([^\{]*)/) {
1758         $prototype .= $1;
1759     }
1760     if (($x =~ /\{/) || ($x =~ /\#define/) || ($x =~ /;/)) {
1761         $prototype =~ s@/\*.*?\*/@@gos; # strip comments.
1762         $prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1763         $prototype =~ s@^\s+@@gos; # strip leading spaces
1764         dump_function($prototype,$file);
1765         reset_state();
1766     }
1767 }
1768
1769 sub process_state3_type($$) {
1770     my $x = shift;
1771     my $file = shift;
1772
1773     $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1774     $x =~ s@^\s+@@gos; # strip leading spaces
1775     $x =~ s@\s+$@@gos; # strip trailing spaces
1776     $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1777
1778     if ($x =~ /^#/) {
1779         # To distinguish preprocessor directive from regular declaration later.
1780         $x .= ";";
1781     }
1782
1783     while (1) {
1784         if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
1785             $prototype .= $1 . $2;
1786             ($2 eq '{') && $brcount++;
1787             ($2 eq '}') && $brcount--;
1788             if (($2 eq ';') && ($brcount == 0)) {
1789                 dump_declaration($prototype,$file);
1790                 reset_state();
1791                 last;
1792             }
1793             $x = $3;
1794         } else {
1795             $prototype .= $x;
1796             last;
1797         }
1798     }
1799 }
1800
1801 # xml_escape: replace <, >, and & in the text stream;
1802 #
1803 # however, formatting controls that are generated internally/locally in the
1804 # kernel-doc script are not escaped here; instead, they begin life like
1805 # $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
1806 # are converted to their mnemonic-expected output, without the 4 * '\' & ':',
1807 # just before actual output; (this is done by local_unescape())
1808 sub xml_escape($) {
1809         my $text = shift;
1810         if (($output_mode eq "text") || ($output_mode eq "man")) {
1811                 return $text;
1812         }
1813         $text =~ s/\&/\\\\\\amp;/g;
1814         $text =~ s/\</\\\\\\lt;/g;
1815         $text =~ s/\>/\\\\\\gt;/g;
1816         return $text;
1817 }
1818
1819 # convert local escape strings to html
1820 # local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
1821 sub local_unescape($) {
1822         my $text = shift;
1823         if (($output_mode eq "text") || ($output_mode eq "man")) {
1824                 return $text;
1825         }
1826         $text =~ s/\\\\\\\\lt:/</g;
1827         $text =~ s/\\\\\\\\gt:/>/g;
1828         return $text;
1829 }
1830
1831 sub process_file($) {
1832     my $file;
1833     my $identifier;
1834     my $func;
1835     my $descr;
1836     my $initial_section_counter = $section_counter;
1837
1838     if (defined($ENV{'SRCTREE'})) {
1839         $file = "$ENV{'SRCTREE'}" . "/" . "@_";
1840     }
1841     else {
1842         $file = "@_";
1843     }
1844     if (defined($source_map{$file})) {
1845         $file = $source_map{$file};
1846     }
1847
1848     if (!open(IN,"<$file")) {
1849         print STDERR "Error: Cannot open file $file\n";
1850         ++$errors;
1851         return;
1852     }
1853
1854     $section_counter = 0;
1855     while (<IN>) {
1856         if ($state == 0) {
1857             if (/$doc_start/o) {
1858                 $state = 1;             # next line is always the function name
1859                 $in_doc_sect = 0;
1860             }
1861         } elsif ($state == 1) { # this line is the function name (always)
1862             if (/$doc_block/o) {
1863                 $state = 4;
1864                 $contents = "";
1865                 if ( $1 eq "" ) {
1866                         $section = $section_intro;
1867                 } else {
1868                         $section = $1;
1869                 }
1870             }
1871             elsif (/$doc_decl/o) {
1872                 $identifier = $1;
1873                 if (/\s*([\w\s]+?)\s*-/) {
1874                     $identifier = $1;
1875                 }
1876
1877                 $state = 2;
1878                 if (/-(.*)/) {
1879                     # strip leading/trailing/multiple spaces
1880                     $descr= $1;
1881                     $descr =~ s/^\s*//;
1882                     $descr =~ s/\s*$//;
1883                     $descr =~ s/\s+/ /;
1884                     $declaration_purpose = xml_escape($descr);
1885                 } else {
1886                     $declaration_purpose = "";
1887                 }
1888
1889                 if (($declaration_purpose eq "") && $verbose) {
1890                         print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
1891                         print STDERR $_;
1892                         ++$warnings;
1893                 }
1894
1895                 if ($identifier =~ m/^struct/) {
1896                     $decl_type = 'struct';
1897                 } elsif ($identifier =~ m/^union/) {
1898                     $decl_type = 'union';
1899                 } elsif ($identifier =~ m/^enum/) {
1900                     $decl_type = 'enum';
1901                 } elsif ($identifier =~ m/^typedef/) {
1902                     $decl_type = 'typedef';
1903                 } else {
1904                     $decl_type = 'function';
1905                 }
1906
1907                 if ($verbose) {
1908                     print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
1909                 }
1910             } else {
1911                 print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
1912                 " - I thought it was a doc line\n";
1913                 ++$warnings;
1914                 $state = 0;
1915             }
1916         } elsif ($state == 2) { # look for head: lines, and include content
1917             if (/$doc_sect/o) {
1918                 $newsection = $1;
1919                 $newcontents = $2;
1920
1921                 if (($contents ne "") && ($contents ne "\n")) {
1922                     if (!$in_doc_sect && $verbose) {
1923                         print STDERR "Warning(${file}:$.): contents before sections\n";
1924                         ++$warnings;
1925                     }
1926                     dump_section($section, xml_escape($contents));
1927                     $section = $section_default;
1928                 }
1929
1930                 $in_doc_sect = 1;
1931                 $contents = $newcontents;
1932                 if ($contents ne "") {
1933                     while ((substr($contents, 0, 1) eq " ") ||
1934                         substr($contents, 0, 1) eq "\t") {
1935                             $contents = substr($contents, 1);
1936                     }
1937                     $contents .= "\n";
1938                 }
1939                 $section = $newsection;
1940             } elsif (/$doc_end/) {
1941
1942                 if ($contents ne "") {
1943                     dump_section($section, xml_escape($contents));
1944                     $section = $section_default;
1945                     $contents = "";
1946                 }
1947
1948                 $prototype = "";
1949                 $state = 3;
1950                 $brcount = 0;
1951 #               print STDERR "end of doc comment, looking for prototype\n";
1952             } elsif (/$doc_content/) {
1953                 # miguel-style comment kludge, look for blank lines after
1954                 # @parameter line to signify start of description
1955                 if ($1 eq "" &&
1956                         ($section =~ m/^@/ || $section eq $section_context)) {
1957                     dump_section($section, xml_escape($contents));
1958                     $section = $section_default;
1959                     $contents = "";
1960                 } else {
1961                     $contents .= $1."\n";
1962                 }
1963             } else {
1964                 # i dont know - bad line?  ignore.
1965                 print STDERR "Warning(${file}:$.): bad line: $_";
1966                 ++$warnings;
1967             }
1968         } elsif ($state == 3) { # scanning for function '{' (end of prototype)
1969             if ($decl_type eq 'function') {
1970                 process_state3_function($_, $file);
1971             } else {
1972                 process_state3_type($_, $file);
1973             }
1974         } elsif ($state == 4) {
1975                 # Documentation block
1976                 if (/$doc_block/) {
1977                         dump_doc_section($section, xml_escape($contents));
1978                         $contents = "";
1979                         $function = "";
1980                         %constants = ();
1981                         %parameterdescs = ();
1982                         %parametertypes = ();
1983                         @parameterlist = ();
1984                         %sections = ();
1985                         @sectionlist = ();
1986                         $prototype = "";
1987                         if ( $1 eq "" ) {
1988                                 $section = $section_intro;
1989                         } else {
1990                                 $section = $1;
1991                         }
1992                 }
1993                 elsif (/$doc_end/)
1994                 {
1995                         dump_doc_section($section, xml_escape($contents));
1996                         $contents = "";
1997                         $function = "";
1998                         %constants = ();
1999                         %parameterdescs = ();
2000                         %parametertypes = ();
2001                         @parameterlist = ();
2002                         %sections = ();
2003                         @sectionlist = ();
2004                         $prototype = "";
2005                         $state = 0;
2006                 }
2007                 elsif (/$doc_content/)
2008                 {
2009                         if ( $1 eq "" )
2010                         {
2011                                 $contents .= $blankline;
2012                         }
2013                         else
2014                         {
2015                                 $contents .= $1 . "\n";
2016                         }
2017                 }
2018         }
2019     }
2020     if ($initial_section_counter == $section_counter) {
2021         print STDERR "Warning(${file}): no structured comments found\n";
2022         if ($output_mode eq "xml") {
2023             # The template wants at least one RefEntry here; make one.
2024             print "<refentry>\n";
2025             print " <refnamediv>\n";
2026             print "  <refname>\n";
2027             print "   ${file}\n";
2028             print "  </refname>\n";
2029             print "  <refpurpose>\n";
2030             print "   Document generation inconsistency\n";
2031             print "  </refpurpose>\n";
2032             print " </refnamediv>\n";
2033             print " <refsect1>\n";
2034             print "  <title>\n";
2035             print "   Oops\n";
2036             print "  </title>\n";
2037             print "  <warning>\n";
2038             print "   <para>\n";
2039             print "    The template for this document tried to insert\n";
2040             print "    the structured comment from the file\n";
2041             print "    <filename>${file}</filename> at this point,\n";
2042             print "    but none was found.\n";
2043             print "    This dummy section is inserted to allow\n";
2044             print "    generation to continue.\n";
2045             print "   </para>\n";
2046             print "  </warning>\n";
2047             print " </refsect1>\n";
2048             print "</refentry>\n";
2049         }
2050     }
2051 }