cf/make-proto.pl

   1 # Make prototypes from .c files
   2 # $Id$
   3
   4 ##use Getopt::Std;
   5 require 'getopts.pl';
   6
   7 my $comment = 0;
   8 my $if_0 = 0;
   9 my $brace = 0;
  10 my $line = "";
  11 my $debug = 0;
  12 my $oproto = 1;
  13 my $private_func_re = "^_";
  14
  15 do Getopts('x:m:o:p:dqE:R:P:') || die "foo";
  16
  17 if($opt_d) {
  18     $debug = 1;
  19 }
  20
  21 if($opt_q) {
  22     $oproto = 0;
  23 }
  24
  25 if($opt_R) {
  26     $private_func_re = $opt_R;
  27 }
  28 %flags = (
  29           'multiline-proto' => 1,
  30           'header' => 1,
  31           'function-blocking' => 0,
  32           'gnuc-attribute' => 1,
  33           'cxx' => 1
  34           );
  35 if($opt_m) {
  36     foreach $i (split(/,/, $opt_m)) {
  37         if($i eq "roken") {
  38             $flags{"multiline-proto"} = 0;
  39             $flags{"header"} = 0;
  40             $flags{"function-blocking"} = 0;
  41             $flags{"gnuc-attribute"} = 0;
  42             $flags{"cxx"} = 0;
  43         } else {
  44             if(substr($i, 0, 3) eq "no-") {
  45                 $flags{substr($i, 3)} = 0;
  46             } else {
  47                 $flags{$i} = 1;
  48             }
  49         }
  50     }
  51 }
  52
  53 if($opt_x) {
  54     open(EXP, $opt_x);
  55     while(<EXP>) {
  56         chomp;
  57         s/\#.*//g;
  58         s/\s+/ /g;
  59         if(/^([a-zA-Z0-9_]+)\s?(.*)$/) {
  60             $exported{$1} = $2;
  61         } else {
  62             print $_, "\n";
  63         }
  64     }
  65     close EXP;
  66 }
  67
  68 while(<>) {
  69     print $brace, " ", $_ if($debug);
  70
  71     # Handle C comments
  72     s@/\*.*\*/@@;
  73     s@//.*/@@;
  74     if ( s@/\*.*@@) { $comment = 1;
  75     } elsif ($comment && s@.*\*/@@) { $comment = 0;
  76     } elsif ($comment) { next; }
  77
  78     if(/^\#if 0/) {
  79         $if_0 = 1;
  80     }
  81     if($if_0 && /^\#endif/) {
  82         $if_0 = 0;
  83     }
  84     if($if_0) { next }
  85     if(/^\s*\#/) {
  86         next;
  87     }
  88     if(/^\s*$/) {
  89         $line = "";
  90         next;
  91     }
  92     if(/\{/){
  93         if (!/\}/) {
  94             $brace++;
  95         }
  96         $_ = $line;
  97         while(s/\*\//\ca/){
  98             s/\/\*(.|\n)*\ca//;
  99         }
 100         s/^\s*//;
 101         s/\s*$//;
 102         s/\s+/ /g;
 103         if($_ =~ /\)$/ or $_ =~ /DEPRECATED$/){
 104             if(!/^static/ && !/^PRIVATE/){
 105                 $attr = "";
 106                 if(m/(.*)(__attribute__\s?\(.*\))/) {
 107                     $attr .= " $2";
 108                     $_ = $1;
 109                 }
 110                 if(m/(.*)\s(\w+DEPRECATED)/) {
 111                     $attr .= " $2";
 112                     $_ = $1;
 113                 }
 114                 # remove outer ()
 115                 s/\s*\(/</;
 116                 s/\)\s?$/>/;
 117                 # remove , within ()
 118                 while(s/\(([^()]*),(.*)\)/($1\$$2)/g){}
 119                 s/\<\s*void\s*\>/<>/;
 120                 # remove parameter names
 121                 if($opt_P eq "remove") {
 122                     s/(\s*)([a-zA-Z0-9_]+)([,>])/$3/g;
 123                     s/\s+\*/*/g;
 124                     s/\(\*(\s*)([a-zA-Z0-9_]+)\)/(*)/g;
 125                 } elsif($opt_P eq "comment") {
 126                     s/([a-zA-Z0-9_]+)([,>])/\/\*$1\*\/$2/g;
 127                     s/\(\*([a-zA-Z0-9_]+)\)/(*\/\*$1\*\/)/g;
 128                 }
 129                 s/\<\>/<void>/;
 130                 # add newlines before parameters
 131                 if($flags{"multiline-proto"}) {
 132                     s/,\s*/,\n\t/g;
 133                 } else {
 134                     s/,\s*/, /g;
 135                 }
 136                 # fix removed ,
 137                 s/\$/,/g;
 138                 # match function name
 139                 /([a-zA-Z0-9_]+)\s*\</;
 140                 $f = $1;
 141                 if($oproto) {
 142                     $LP = "__P((";
 143                     $RP = "))";
 144                 } else {
 145                     $LP = "(";
 146                     $RP = ")";
 147                 }
 148                 # only add newline if more than one parameter
 149                 if($flags{"multiline-proto"} && /,/){
 150                     s/\</ $LP\n\t/;
 151                 }else{
 152                     s/\</ $LP/;
 153                 }
 154                 s/\>/$RP/;
 155                 # insert newline before function name
 156                 if($flags{"multiline-proto"}) {
 157                     s/(.*)\s([a-zA-Z0-9_]+ \Q$LP\E)/$1\n$2/;
 158                 }
 159                 if($attr ne "") {
 160                     $_ .= "\n    $attr";
 161                 }
 162                 $_ = $_ . ";";
 163                 $funcs{$f} = $_;
 164             }
 165         }
 166         $line = "";
 167     }
 168     if(/\}/){
 169         $brace--;
 170     }
 171     if(/^\}/){
 172         $brace = 0;
 173     }
 174     if($brace == 0) {
 175         $line = $line . " " . $_;
 176     }
 177 }
 178
 179 sub foo {
 180     local ($arg) = @_;
 181     $_ = $arg;
 182     s/.*\/([^\/]*)/$1/;
 183     s/[^a-zA-Z0-9]/_/g;
 184     "__" . $_ . "__";
 185 }
 186
 187 if($opt_o) {
 188     open(OUT, ">$opt_o");
 189     $block = &foo($opt_o);
 190 } else {
 191     $block = "__public_h__";
 192 }
 193
 194 if($opt_p) {
 195     open(PRIV, ">$opt_p");
 196     $private = &foo($opt_p);
 197 } else {
 198     $private = "__private_h__";
 199 }
 200
 201 $public_h = "";
 202 $private_h = "";
 203
 204 $public_h_header .= "/* This is a generated file */
 205 #ifndef $block
 206 #define $block
 207
 208 ";
 209 if ($oproto) {
 210     $public_h_header .= "#ifdef __STDC__
 211 #include <stdarg.h>
 212 #ifndef __P
 213 #define __P(x) x
 214 #endif
 215 #else
 216 #ifndef __P
 217 #define __P(x) ()
 218 #endif
 219 #endif
 220
 221 ";
 222 } else {
 223     $public_h_header .= "#include <stdarg.h>
 224
 225 ";
 226 }
 227 $public_h_trailer = "";
 228
 229 $private_h_header = "/* This is a generated file */
 230 #ifndef $private
 231 #define $private
 232
 233 ";
 234 if($oproto) {
 235     $private_h_header .= "#ifdef __STDC__
 236 #include <stdarg.h>
 237 #ifndef __P
 238 #define __P(x) x
 239 #endif
 240 #else
 241 #ifndef __P
 242 #define __P(x) ()
 243 #endif
 244 #endif
 245
 246 ";
 247 } else {
 248     $private_h_header .= "#include <stdarg.h>
 249
 250 ";
 251 }
 252 $private_h_trailer = "";
 253
 254 foreach(sort keys %funcs){
 255     if(/^(main)$/) { next }
 256     if(!defined($exported{$_}) && /$private_func_re/) {
 257         $private_h .= $funcs{$_} . "\n\n";
 258         if($funcs{$_} =~ /__attribute__/) {
 259             $private_attribute_seen = 1;
 260         }
 261     } else {
 262         if($flags{"function-blocking"}) {
 263             $fupper = uc $_;
 264             if($exported{$_} =~ /proto/) {
 265                 $public_h .= "#if !defined(HAVE_$fupper) || defined(NEED_${fupper}_PROTO)\n";
 266             } else {
 267                 $public_h .= "#ifndef HAVE_$fupper\n";
 268             }
 269         }
 270         $public_h .= $funcs{$_} . "\n";
 271         if($funcs{$_} =~ /__attribute__/) {
 272             $public_attribute_seen = 1;
 273         }
 274         if($flags{"function-blocking"}) {
 275             $public_h .= "#endif\n";
 276         }
 277         $public_h .= "\n";
 278     }
 279 }
 280
 281 if($flags{"gnuc-attribute"}) {
 282     if ($public_attribute_seen) {
 283         $public_h_header .= "#if !defined(__GNUC__) && !defined(__attribute__)
 284 #define __attribute__(x)
 285 #endif
 286
 287 ";
 288     }
 289
 290     if ($private_attribute_seen) {
 291         $private_h_header .= "#if !defined(__GNUC__) && !defined(__attribute__)
 292 #define __attribute__(x)
 293 #endif
 294
 295 ";
 296     }
 297 }
 298 if($flags{"cxx"}) {
 299     $public_h_header .= "#ifdef __cplusplus
 300 extern \"C\" {
 301 #endif
 302
 303 ";
 304     $public_h_trailer .= "#ifdef __cplusplus
 305 }
 306 #endif
 307
 308 ";
 309
 310 }
 311 if ($opt_E) {
 312     $public_h_header .= "#ifndef $opt_E
 313 #if defined(_WIN32)
 314 #define ${opt_E}_FUNCTION __stdcall __declspec(dllimport)
 315 #define ${opt_E}_VARIABLE __declspec(dllimport)
 316 #else
 317 #define ${opt_E}_FUNCTION
 318 #define ${opt_E}_VARIABLE
 319 #endif
 320 #endif
 321
 322 ";
 323
 324     $private_h_header .= "#ifndef $opt_E
 325 #if defined(_WIN32)
 326 #define ${opt_E}_FUNCTION __stdcall __declspec(dllimport)
 327 #define ${opt_E}_VARIABLE __declspec(dllimport)
 328 #else
 329 #define ${opt_E}_FUNCTION
 330 #define ${opt_E}_VARIABLE
 331 #endif
 332 #endif
 333
 334 ";
 335 }
 336
 337 if ($public_h ne "" && $flags{"header"}) {
 338     $public_h = $public_h_header . $public_h .
 339         $public_h_trailer . "#endif /* $block */\n";
 340 }
 341 if ($private_h ne "" && $flags{"header"}) {
 342     $private_h = $private_h_header . $private_h .
 343         $private_h_trailer . "#endif /* $private */\n";
 344 }
 345
 346 if($opt_o) {
 347     print OUT $public_h;
 348 }
 349 if($opt_p) {
 350     print PRIV $private_h;
 351 }
 352
 353 close OUT;
 354 close PRIV;