| 1 | #!/usr/local/bin/perl |
| 2 | |
| 3 | use strict; |
| 4 | use warnings; |
| 5 | |
| 6 | use Config; |
| 7 | use File::Basename qw(&basename &dirname); |
| 8 | use Cwd; |
| 9 | |
| 10 | # List explicitly here the variables you want Configure to |
| 11 | # generate. Metaconfig only looks for shell variables, so you |
| 12 | # have to mention them as if they were shell variables, not |
| 13 | # %Config entries. Thus you write |
| 14 | # $startperl |
| 15 | # to ensure Configure will look for $Config{startperl}. |
| 16 | |
| 17 | # This forces PL files to create target in same directory as PL file. |
| 18 | # This is so that make depend always knows where to find PL derivatives. |
| 19 | my $origdir = cwd; |
| 20 | chdir dirname($0); |
| 21 | my $file = basename($0, '.PL'); |
| 22 | $file .= '.com' if $^O eq 'VMS'; |
| 23 | |
| 24 | open OUT, ">", $file or die "Can't create $file: $!"; |
| 25 | |
| 26 | print "Extracting $file (with variable substitutions)\n"; |
| 27 | |
| 28 | # In this section, perl variables will be expanded during extraction. |
| 29 | # You can use $Config{...} to use Configure variables. |
| 30 | |
| 31 | print OUT <<"!GROK!THIS!"; |
| 32 | $Config{startperl} |
| 33 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
| 34 | if 0; # ^ Run only under a shell |
| 35 | !GROK!THIS! |
| 36 | |
| 37 | # In the following, perl variables are not expanded during extraction. |
| 38 | |
| 39 | print OUT <<'!NO!SUBS!'; |
| 40 | |
| 41 | =head1 NAME |
| 42 | |
| 43 | pl2pm - Rough tool to translate Perl4 .pl files to Perl5 .pm modules. |
| 44 | |
| 45 | =head1 SYNOPSIS |
| 46 | |
| 47 | B<pl2pm> F<files> |
| 48 | |
| 49 | =head1 DESCRIPTION |
| 50 | |
| 51 | B<pl2pm> is a tool to aid in the conversion of Perl4-style .pl |
| 52 | library files to Perl5-style library modules. Usually, your old .pl |
| 53 | file will still work fine and you should only use this tool if you |
| 54 | plan to update your library to use some of the newer Perl 5 features, |
| 55 | such as AutoLoading. |
| 56 | |
| 57 | =head1 LIMITATIONS |
| 58 | |
| 59 | It's just a first step, but it's usually a good first step. |
| 60 | |
| 61 | =head1 AUTHOR |
| 62 | |
| 63 | Larry Wall <larry@wall.org> |
| 64 | |
| 65 | =cut |
| 66 | |
| 67 | use strict; |
| 68 | use warnings; |
| 69 | |
| 70 | my %keyword = (); |
| 71 | |
| 72 | while (<DATA>) { |
| 73 | chomp; |
| 74 | $keyword{$_} = 1; |
| 75 | } |
| 76 | |
| 77 | local $/; |
| 78 | |
| 79 | while (<>) { |
| 80 | my $newname = $ARGV; |
| 81 | $newname =~ s/\.pl$/.pm/ || next; |
| 82 | $newname =~ s#(.*/)?(\w+)#$1\u$2#; |
| 83 | if (-f $newname) { |
| 84 | warn "Won't overwrite existing $newname\n"; |
| 85 | next; |
| 86 | } |
| 87 | my $oldpack = $2; |
| 88 | my $newpack = "\u$2"; |
| 89 | my @export = (); |
| 90 | |
| 91 | s/\bstd(in|out|err)\b/\U$&/g; |
| 92 | s/(sub\s+)(\w+)(\s*\{[ \t]*\n)\s*package\s+$oldpack\s*;[ \t]*\n+/${1}main'$2$3/ig; |
| 93 | if (/sub\s+\w+'/) { |
| 94 | @export = m/sub\s+\w+'(\w+)/g; |
| 95 | s/(sub\s+)main'(\w+)/$1$2/g; |
| 96 | } |
| 97 | else { |
| 98 | @export = m/sub\s+([A-Za-z]\w*)/g; |
| 99 | } |
| 100 | my @export_ok = grep($keyword{$_}, @export); |
| 101 | @export = grep(!$keyword{$_}, @export); |
| 102 | |
| 103 | my %export = (); |
| 104 | @export{@export} = (1) x @export; |
| 105 | |
| 106 | s/(^\s*);#/$1#/g; |
| 107 | s/(#.*)require ['"]$oldpack\.pl['"]/$1use $newpack/; |
| 108 | s/(package\s*)($oldpack)\s*;[ \t]*\n+//ig; |
| 109 | s/([\$\@%&*])'(\w+)/&xlate($1,"",$2,$newpack,$oldpack,\%export)/eg; |
| 110 | s/([\$\@%&*]?)(\w+)'(\w+)/&xlate($1,$2,$3,$newpack,$oldpack,\%export)/eg; |
| 111 | if (!/\$\[\s*\)?\s*=\s*[^0\s]/) { |
| 112 | s/^\s*(local\s*\()?\s*\$\[\s*\)?\s*=\s*0\s*;[ \t]*\n//g; |
| 113 | s/\$\[\s*\+\s*//g; |
| 114 | s/\s*\+\s*\$\[//g; |
| 115 | s/\$\[/0/g; |
| 116 | } |
| 117 | s/open\s+(\w+)/open($1)/g; |
| 118 | |
| 119 | my $export_ok = ''; |
| 120 | my $carp =''; |
| 121 | |
| 122 | |
| 123 | if (s/\bdie\b/croak/g) { |
| 124 | $carp = "use Carp;\n"; |
| 125 | s/croak "([^"]*)\\n"/croak "$1"/g; |
| 126 | } |
| 127 | |
| 128 | if (@export_ok) { |
| 129 | $export_ok = "\@EXPORT_OK = qw(@export_ok);\n"; |
| 130 | } |
| 131 | |
| 132 | if ( open(PM, ">", $newname) ) { |
| 133 | print PM <<"END"; |
| 134 | package $newpack; |
| 135 | use 5.006; |
| 136 | require Exporter; |
| 137 | $carp |
| 138 | \@ISA = qw(Exporter); |
| 139 | \@EXPORT = qw(@export); |
| 140 | $export_ok |
| 141 | $_ |
| 142 | END |
| 143 | } |
| 144 | else { |
| 145 | warn "Can't create $newname: $!\n"; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | sub xlate { |
| 150 | my ($prefix, $pack, $ident,$newpack,$oldpack,$export) = @_; |
| 151 | |
| 152 | my $xlated ; |
| 153 | if ($prefix eq '' && $ident =~ /^(t|s|m|d|ing|ll|ed|ve|re)$/) { |
| 154 | $xlated = "${pack}'$ident"; |
| 155 | } |
| 156 | elsif ($pack eq '' || $pack eq 'main') { |
| 157 | if ($export->{$ident}) { |
| 158 | $xlated = "$prefix$ident"; |
| 159 | } |
| 160 | else { |
| 161 | $xlated = "$prefix${pack}::$ident"; |
| 162 | } |
| 163 | } |
| 164 | elsif ($pack eq $oldpack) { |
| 165 | $xlated = "$prefix${newpack}::$ident"; |
| 166 | } |
| 167 | else { |
| 168 | $xlated = "$prefix${pack}::$ident"; |
| 169 | } |
| 170 | |
| 171 | return $xlated; |
| 172 | } |
| 173 | __END__ |
| 174 | AUTOLOAD |
| 175 | BEGIN |
| 176 | CHECK |
| 177 | CORE |
| 178 | DESTROY |
| 179 | END |
| 180 | INIT |
| 181 | UNITCHECK |
| 182 | abs |
| 183 | accept |
| 184 | alarm |
| 185 | and |
| 186 | atan2 |
| 187 | bind |
| 188 | binmode |
| 189 | bless |
| 190 | caller |
| 191 | chdir |
| 192 | chmod |
| 193 | chomp |
| 194 | chop |
| 195 | chown |
| 196 | chr |
| 197 | chroot |
| 198 | close |
| 199 | closedir |
| 200 | cmp |
| 201 | connect |
| 202 | continue |
| 203 | cos |
| 204 | crypt |
| 205 | dbmclose |
| 206 | dbmopen |
| 207 | defined |
| 208 | delete |
| 209 | die |
| 210 | do |
| 211 | dump |
| 212 | each |
| 213 | else |
| 214 | elsif |
| 215 | endgrent |
| 216 | endhostent |
| 217 | endnetent |
| 218 | endprotoent |
| 219 | endpwent |
| 220 | endservent |
| 221 | eof |
| 222 | eq |
| 223 | eval |
| 224 | exec |
| 225 | exists |
| 226 | exit |
| 227 | exp |
| 228 | fcntl |
| 229 | fileno |
| 230 | flock |
| 231 | for |
| 232 | foreach |
| 233 | fork |
| 234 | format |
| 235 | formline |
| 236 | ge |
| 237 | getc |
| 238 | getgrent |
| 239 | getgrgid |
| 240 | getgrnam |
| 241 | gethostbyaddr |
| 242 | gethostbyname |
| 243 | gethostent |
| 244 | getlogin |
| 245 | getnetbyaddr |
| 246 | getnetbyname |
| 247 | getnetent |
| 248 | getpeername |
| 249 | getpgrp |
| 250 | getppid |
| 251 | getpriority |
| 252 | getprotobyname |
| 253 | getprotobynumber |
| 254 | getprotoent |
| 255 | getpwent |
| 256 | getpwnam |
| 257 | getpwuid |
| 258 | getservbyname |
| 259 | getservbyport |
| 260 | getservent |
| 261 | getsockname |
| 262 | getsockopt |
| 263 | glob |
| 264 | gmtime |
| 265 | goto |
| 266 | grep |
| 267 | gt |
| 268 | hex |
| 269 | if |
| 270 | index |
| 271 | int |
| 272 | ioctl |
| 273 | join |
| 274 | keys |
| 275 | kill |
| 276 | last |
| 277 | lc |
| 278 | lcfirst |
| 279 | le |
| 280 | length |
| 281 | link |
| 282 | listen |
| 283 | local |
| 284 | localtime |
| 285 | lock |
| 286 | log |
| 287 | lstat |
| 288 | lt |
| 289 | m |
| 290 | map |
| 291 | mkdir |
| 292 | msgctl |
| 293 | msgget |
| 294 | msgrcv |
| 295 | msgsnd |
| 296 | my |
| 297 | ne |
| 298 | next |
| 299 | no |
| 300 | not |
| 301 | oct |
| 302 | open |
| 303 | opendir |
| 304 | or |
| 305 | ord |
| 306 | our |
| 307 | pack |
| 308 | package |
| 309 | pipe |
| 310 | pop |
| 311 | pos |
| 312 | print |
| 313 | printf |
| 314 | prototype |
| 315 | push |
| 316 | q |
| 317 | qq |
| 318 | qr |
| 319 | quotemeta |
| 320 | qw |
| 321 | qx |
| 322 | rand |
| 323 | read |
| 324 | readdir |
| 325 | readline |
| 326 | readlink |
| 327 | readpipe |
| 328 | recv |
| 329 | redo |
| 330 | ref |
| 331 | rename |
| 332 | require |
| 333 | reset |
| 334 | return |
| 335 | reverse |
| 336 | rewinddir |
| 337 | rindex |
| 338 | rmdir |
| 339 | s |
| 340 | scalar |
| 341 | seek |
| 342 | seekdir |
| 343 | select |
| 344 | semctl |
| 345 | semget |
| 346 | semop |
| 347 | send |
| 348 | setgrent |
| 349 | sethostent |
| 350 | setnetent |
| 351 | setpgrp |
| 352 | setpriority |
| 353 | setprotoent |
| 354 | setpwent |
| 355 | setservent |
| 356 | setsockopt |
| 357 | shift |
| 358 | shmctl |
| 359 | shmget |
| 360 | shmread |
| 361 | shmwrite |
| 362 | shutdown |
| 363 | sin |
| 364 | sleep |
| 365 | socket |
| 366 | socketpair |
| 367 | sort |
| 368 | splice |
| 369 | split |
| 370 | sprintf |
| 371 | sqrt |
| 372 | srand |
| 373 | stat |
| 374 | study |
| 375 | sub |
| 376 | substr |
| 377 | symlink |
| 378 | syscall |
| 379 | sysopen |
| 380 | sysread |
| 381 | sysseek |
| 382 | system |
| 383 | syswrite |
| 384 | tell |
| 385 | telldir |
| 386 | tie |
| 387 | tied |
| 388 | time |
| 389 | times |
| 390 | tr |
| 391 | truncate |
| 392 | uc |
| 393 | ucfirst |
| 394 | umask |
| 395 | undef |
| 396 | unless |
| 397 | unlink |
| 398 | unpack |
| 399 | unshift |
| 400 | untie |
| 401 | until |
| 402 | use |
| 403 | utime |
| 404 | values |
| 405 | vec |
| 406 | wait |
| 407 | waitpid |
| 408 | wantarray |
| 409 | warn |
| 410 | while |
| 411 | write |
| 412 | x |
| 413 | xor |
| 414 | y |
| 415 | !NO!SUBS! |
| 416 | |
| 417 | close OUT or die "Can't close $file: $!"; |
| 418 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
| 419 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |
| 420 | chdir $origdir; |