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($_ =~ /\)$/){
 104             if(!/^static/ && !/^PRIVATE/){
 105                 if(/(.*)(__attribute__\s?\(.*\))/) {
 106                     $attr = $2;
 107                     $_ = $1;
 108                 } else {
 109                     $attr = "";
 110                 }
 111                 # remove outer ()
 112                 s/\s*\(/</;
 113                 s/\)\s?$/>/;
 114                 # remove , within ()
 115                 while(s/\(([^()]*),(.*)\)/($1\$$2)/g){}
 116                 s/\<\s*void\s*\>/<>/;
 117                 # remove parameter names
 118                 if($opt_P eq "remove") {
 119                     s/(\s*)([a-zA-Z0-9_]+)([,>])/$3/g;
 120                     s/\s+\*/*/g;
 121                     s/\(\*(\s*)([a-zA-Z0-9_]+)\)/(*)/g;
 122                 } elsif($opt_P eq "comment") {
 123                     s/([a-zA-Z0-9_]+)([,>])/\/\*$1\*\/$2/g;
 124                     s/\(\*([a-zA-Z0-9_]+)\)/(*\/\*$1\*\/)/g;
 125                 }
 126                 s/\<\>/<void>/;
 127                 # add newlines before parameters
 128                 if($flags{"multiline-proto"}) {
 129                     s/,\s*/,\n\t/g;
 130                 } else {
 131                     s/,\s*/, /g;
 132                 }
 133                 # fix removed ,
 134                 s/\$/,/g;
 135                 # match function name
 136                 /([a-zA-Z0-9_]+)\s*\</;
 137                 $f = $1;
 138                 if($oproto) {
 139                     $LP = "__P((";
 140                     $RP = "))";
 141                 } else {
 142                     $LP = "(";
 143                     $RP = ")";
 144                 }
 145                 # only add newline if more than one parameter
 146                 if($flags{"multiline-proto"} && /,/){
 147                     s/\</ $LP\n\t/;
 148                 }else{
 149                     s/\</ $LP/;
 150                 }
 151                 s/\>/$RP/;
 152                 # insert newline before function name
 153                 if($flags{"multiline-proto"}) {
 154                     s/(.*)\s([a-zA-Z0-9_]+ \Q$LP\E)/$1\n$2/;
 155                 }
 156                 if($attr ne "") {
 157                     $_ .= "\n    $attr";
 158                 }
 159                 $_ = $_ . ";";
 160                 $funcs{$f} = $_;
 161             }
 162         }
 163         $line = "";
 164     }
 165     if(/\}/){
 166         $brace--;
 167     }
 168     if(/^\}/){
 169         $brace = 0;
 170     }
 171     if($brace == 0) {
 172         $line = $line . " " . $_;
 173     }
 174 }
 175
 176 sub foo {
 177     local ($arg) = @_;
 178     $_ = $arg;
 179     s/.*\/([^\/]*)/$1/;
 180     s/[^a-zA-Z0-9]/_/g;
 181     "__" . $_ . "__";
 182 }
 183
 184 if($opt_o) {
 185     open(OUT, ">$opt_o");
 186     $block = &foo($opt_o);
 187 } else {
 188     $block = "__public_h__";
 189 }
 190
 191 if($opt_p) {
 192     open(PRIV, ">$opt_p");
 193     $private = &foo($opt_p);
 194 } else {
 195     $private = "__private_h__";
 196 }
 197
 198 $public_h = "";
 199 $private_h = "";
 200
 201 $public_h_header .= "/* This is a generated file */
 202 #ifndef $block
 203 #define $block
 204
 205 ";
 206 if ($oproto) {
 207     $public_h_header .= "#ifdef __STDC__
 208 #include <stdarg.h>
 209 #ifndef __P
 210 #define __P(x) x
 211 #endif
 212 #else
 213 #ifndef __P
 214 #define __P(x) ()
 215 #endif
 216 #endif
 217
 218 ";
 219 } else {
 220     $public_h_header .= "#include <stdarg.h>
 221
 222 ";
 223 }
 224 $public_h_trailer = "";
 225
 226 $private_h_header = "/* This is a generated file */
 227 #ifndef $private
 228 #define $private
 229
 230 ";
 231 if($oproto) {
 232     $private_h_header .= "#ifdef __STDC__
 233 #include <stdarg.h>
 234 #ifndef __P
 235 #define __P(x) x
 236 #endif
 237 #else
 238 #ifndef __P
 239 #define __P(x) ()
 240 #endif
 241 #endif
 242
 243 ";
 244 } else {
 245     $private_h_header .= "#include <stdarg.h>
 246
 247 ";
 248 }
 249 $private_h_trailer = "";
 250
 251 foreach(sort keys %funcs){
 252     if(/^(main)$/) { next }
 253     if(!defined($exported{$_}) && /$private_func_re/) {
 254         $private_h .= $funcs{$_} . "\n\n";
 255         if($funcs{$_} =~ /__attribute__/) {
 256             $private_attribute_seen = 1;
 257         }
 258     } else {
 259         if($flags{"function-blocking"}) {
 260             $fupper = uc $_;
 261             if($exported{$_} =~ /proto/) {
 262                 $public_h .= "#if !defined(HAVE_$fupper) || defined(NEED_${fupper}_PROTO)\n";
 263             } else {
 264                 $public_h .= "#ifndef HAVE_$fupper\n";
 265             }
 266         }
 267         $public_h .= $funcs{$_} . "\n";
 268         if($funcs{$_} =~ /__attribute__/) {
 269             $public_attribute_seen = 1;
 270         }
 271         if($flags{"function-blocking"}) {
 272             $public_h .= "#endif\n";
 273         }
 274         $public_h .= "\n";
 275     }
 276 }
 277
 278 if($flags{"gnuc-attribute"}) {
 279     if ($public_attribute_seen) {
 280         $public_h_header .= "#if !defined(__GNUC__) && !defined(__attribute__)
 281 #define __attribute__(x)
 282 #endif
 283
 284 ";
 285     }
 286
 287     if ($private_attribute_seen) {
 288         $private_h_header .= "#if !defined(__GNUC__) && !defined(__attribute__)
 289 #define __attribute__(x)
 290 #endif
 291
 292 ";
 293     }
 294 }
 295 if($flags{"cxx"}) {
 296     $public_h_header .= "#ifdef __cplusplus
 297 extern \"C\" {
 298 #endif
 299
 300 ";
 301     $public_h_trailer .= "#ifdef __cplusplus
 302 }
 303 #endif
 304
 305 ";
 306
 307 }
 308 if ($opt_E) {
 309     $public_h_header .= "#ifndef $opt_E
 310 #if defined(_WIN32)
 311 #define ${opt_E}_FUNCTION _stdcall __declspec(dllimport)
 312 #define ${opt_E}_VARIABLE __declspec(dllimport)
 313 #else
 314 #define ${opt_E}_FUNCTION
 315 #define ${opt_E}_VARIABLE
 316 #endif
 317 #endif
 318
 319 ";
 320
 321     $private_h_header .= "#ifndef $opt_E
 322 #if defined(_WIN32)
 323 #define ${opt_E}_FUNCTION _stdcall __declspec(dllimport)
 324 #define ${opt_E}_VARIABLE __declspec(dllimport)
 325 #else
 326 #define ${opt_E}_FUNCTION
 327 #define ${opt_E}_VARIABLE
 328 #endif
 329 #endif
 330
 331 ";
 332 }
 333
 334 if ($public_h ne "" && $flags{"header"}) {
 335     $public_h = $public_h_header . $public_h .
 336         $public_h_trailer . "#endif /* $block */\n";
 337 }
 338 if ($private_h ne "" && $flags{"header"}) {
 339     $private_h = $private_h_header . $private_h .
 340         $private_h_trailer . "#endif /* $private */\n";
 341 }
 342
 343 if($opt_o) {
 344     print OUT $public_h;
 345 }
 346 if($opt_p) {
 347     print PRIV $private_h;
 348 }
 349
 350 close OUT;
 351 close PRIV;