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