Commit | Line | Data |
f50fdf03 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
5 | |
6 | # List explicitly here the variables you want Configure to |
7 | # generate. Metaconfig only looks for shell variables, so you |
8 | # have to mention them as if they were shell variables, not |
9 | # %Config entries. Thus you write |
10 | # $startperl |
11 | # to ensure Configure will look for $Config{startperl}. |
12 | |
13 | # This forces PL files to create target in same directory as PL file. |
14 | # This is so that make depend always knows where to find PL derivatives. |
15 | chdir(dirname($0)); |
16 | ($file = basename($0)) =~ s/\.PL$//; |
17 | $file =~ s/\.pl$// |
f360dba1 |
18 | if ($^O eq 'VMS' or $^O eq 'os2'); # "case-forgiving" |
f50fdf03 |
19 | |
20 | open OUT,">$file" or die "Can't create $file: $!"; |
21 | |
22 | print "Extracting $file (with variable substitutions)\n"; |
23 | |
24 | # In this section, perl variables will be expanded during extraction. |
25 | # You can use $Config{...} to use Configure variables. |
26 | |
27 | print OUT <<"!GROK!THIS!"; |
5f05dabc |
28 | $Config{startperl} |
29 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
30 | if \$running_under_some_shell; |
f50fdf03 |
31 | !GROK!THIS! |
32 | |
33 | # In the following, perl variables are not expanded during extraction. |
34 | |
35 | print OUT <<'!NO!SUBS!'; |
36 | |
37 | =head1 NAME |
38 | |
39 | pl2pm - Rough tool to translate Perl4 .pl files to Perl5 .pm modules. |
40 | |
41 | =head1 SYNOPSIS |
42 | |
43 | B<pl2pm> F<files> |
44 | |
45 | =head1 DESCRIPTION |
46 | |
47 | B<pl2pm> is a tool to aid in the conversion of Perl4-style .pl |
48 | library files to Perl5-style library modules. Usually, your old .pl |
49 | file will still work fine and you should only use this tool if you |
50 | plan to update your library to use some of the newer Perl 5 features, |
51 | such as AutoLoading. |
52 | |
53 | =head1 LIMITATIONS |
54 | |
55 | It's just a first step, but it's usually a good first step. |
56 | |
57 | =head1 AUTHOR |
58 | |
55497cff |
59 | Larry Wall <larry@wall.org> |
f50fdf03 |
60 | |
61 | =cut |
a0d0e21e |
62 | |
63 | while (<DATA>) { |
64 | chop; |
65 | $keyword{$_} = 1; |
66 | } |
67 | |
68 | undef $/; |
69 | $* = 1; |
70 | while (<>) { |
71 | $newname = $ARGV; |
72 | $newname =~ s/\.pl$/.pm/ || next; |
73 | $newname =~ s#(.*/)?(\w+)#$1\u$2#; |
74 | if (-f $newname) { |
75 | warn "Won't overwrite existing $newname\n"; |
76 | next; |
77 | } |
78 | $oldpack = $2; |
79 | $newpack = "\u$2"; |
80 | @export = (); |
81 | print "$oldpack => $newpack\n" if $verbose; |
82 | |
748a9306 |
83 | s/\bstd(in|out|err)\b/\U$&/g; |
a0d0e21e |
84 | s/(sub\s+)(\w+)(\s*\{[ \t]*\n)\s*package\s+$oldpack\s*;[ \t]*\n+/${1}main'$2$3/ig; |
85 | if (/sub\s+main'/) { |
86 | @export = m/sub\s+main'(\w+)/g; |
87 | s/(sub\s+)main'(\w+)/$1$2/g; |
88 | } |
89 | else { |
90 | @export = m/sub\s+([A-Za-z]\w*)/g; |
91 | } |
92 | @export_ok = grep($keyword{$_}, @export); |
93 | @export = grep(!$keyword{$_}, @export); |
94 | @export{@export} = (1) x @export; |
95 | s/(^\s*);#/$1#/g; |
96 | s/(#.*)require ['"]$oldpack\.pl['"]/$1use $newpack/; |
97 | s/(package\s*)($oldpack)\s*;[ \t]*\n+//ig; |
98 | s/([\$\@%&*])'(\w+)/&xlate($1,"",$2)/eg; |
99 | s/([\$\@%&*]?)(\w+)'(\w+)/&xlate($1,$2,$3)/eg; |
100 | if (!/\$\[\s*\)?\s*=\s*[^0\s]/) { |
101 | s/^\s*(local\s*\()?\s*\$\[\s*\)?\s*=\s*0\s*;[ \t]*\n//g; |
102 | s/\$\[\s*\+\s*//g; |
103 | s/\s*\+\s*\$\[//g; |
104 | s/\$\[/0/g; |
105 | } |
106 | s/open\s+(\w+)/open($1)/g; |
107 | |
108 | if (s/\bdie\b/croak/g) { |
109 | $carp = "use Carp;\n"; |
110 | s/croak "([^"]*)\\n"/croak "$1"/g; |
111 | } |
112 | else { |
113 | $carp = ""; |
114 | } |
115 | if (@export_ok) { |
116 | $export_ok = "\@EXPORT_OK = qw(@export_ok);\n"; |
117 | } |
118 | else { |
119 | $export_ok = ""; |
120 | } |
121 | |
122 | open(PM, ">$newname") || warn "Can't create $newname: $!\n"; |
123 | print PM <<"END"; |
124 | package $newpack; |
125 | require 5.000; |
126 | require Exporter; |
127 | $carp |
128 | \@ISA = qw(Exporter); |
129 | \@EXPORT = qw(@export); |
130 | $export_ok |
131 | $_ |
132 | END |
133 | } |
134 | |
135 | sub xlate { |
136 | local($prefix, $pack, $ident) = @_; |
137 | if ($prefix eq '' && $ident =~ /^(t|s|m|d|ing|ll|ed|ve|re)$/) { |
138 | "${pack}'$ident"; |
139 | } |
140 | elsif ($pack eq "" || $pack eq "main") { |
141 | if ($export{$ident}) { |
142 | "$prefix$ident"; |
143 | } |
144 | else { |
145 | "$prefix${pack}::$ident"; |
146 | } |
147 | } |
148 | elsif ($pack eq $oldpack) { |
149 | "$prefix${newpack}::$ident"; |
150 | } |
151 | else { |
152 | "$prefix${pack}::$ident"; |
153 | } |
154 | } |
155 | __END__ |
156 | AUTOLOAD |
157 | BEGIN |
158 | CORE |
159 | DESTROY |
160 | END |
161 | abs |
162 | accept |
163 | alarm |
164 | and |
165 | atan2 |
166 | bind |
167 | binmode |
168 | bless |
169 | caller |
170 | chdir |
171 | chmod |
172 | chop |
173 | chown |
174 | chr |
175 | chroot |
176 | close |
177 | closedir |
178 | cmp |
179 | connect |
180 | continue |
181 | cos |
182 | crypt |
183 | dbmclose |
184 | dbmopen |
185 | defined |
186 | delete |
187 | die |
188 | do |
189 | dump |
190 | each |
191 | else |
192 | elsif |
193 | endgrent |
194 | endhostent |
195 | endnetent |
196 | endprotoent |
197 | endpwent |
198 | endservent |
199 | eof |
200 | eq |
201 | eval |
202 | exec |
203 | exit |
204 | exp |
205 | fcntl |
206 | fileno |
207 | flock |
208 | for |
209 | foreach |
210 | fork |
211 | format |
212 | formline |
213 | ge |
214 | getc |
215 | getgrent |
216 | getgrgid |
217 | getgrnam |
218 | gethostbyaddr |
219 | gethostbyname |
220 | gethostent |
221 | getlogin |
222 | getnetbyaddr |
223 | getnetbyname |
224 | getnetent |
225 | getpeername |
226 | getpgrp |
227 | getppid |
228 | getpriority |
229 | getprotobyname |
230 | getprotobynumber |
231 | getprotoent |
232 | getpwent |
233 | getpwnam |
234 | getpwuid |
235 | getservbyname |
236 | getservbyport |
237 | getservent |
238 | getsockname |
239 | getsockopt |
240 | glob |
241 | gmtime |
242 | goto |
243 | grep |
244 | gt |
245 | hex |
246 | if |
247 | index |
248 | int |
249 | ioctl |
250 | join |
251 | keys |
252 | kill |
253 | last |
254 | lc |
255 | lcfirst |
256 | le |
257 | length |
258 | link |
259 | listen |
260 | local |
261 | localtime |
262 | log |
263 | lstat |
264 | lt |
265 | m |
266 | mkdir |
267 | msgctl |
268 | msgget |
269 | msgrcv |
270 | msgsnd |
271 | my |
272 | ne |
273 | next |
274 | no |
275 | not |
276 | oct |
277 | open |
278 | opendir |
279 | or |
280 | ord |
281 | pack |
282 | package |
283 | pipe |
284 | pop |
285 | print |
286 | printf |
287 | push |
288 | q |
289 | qq |
290 | quotemeta |
291 | qw |
292 | qx |
293 | rand |
294 | read |
295 | readdir |
296 | readline |
297 | readlink |
298 | readpipe |
299 | recv |
300 | redo |
301 | ref |
302 | rename |
303 | require |
304 | reset |
305 | return |
306 | reverse |
307 | rewinddir |
308 | rindex |
309 | rmdir |
310 | s |
311 | scalar |
312 | seek |
313 | seekdir |
314 | select |
315 | semctl |
316 | semget |
317 | semop |
318 | send |
319 | setgrent |
320 | sethostent |
321 | setnetent |
322 | setpgrp |
323 | setpriority |
324 | setprotoent |
325 | setpwent |
326 | setservent |
327 | setsockopt |
328 | shift |
329 | shmctl |
330 | shmget |
331 | shmread |
332 | shmwrite |
333 | shutdown |
334 | sin |
335 | sleep |
336 | socket |
337 | socketpair |
338 | sort |
339 | splice |
340 | split |
341 | sprintf |
342 | sqrt |
343 | srand |
344 | stat |
345 | study |
346 | sub |
347 | substr |
348 | symlink |
349 | syscall |
350 | sysread |
351 | system |
352 | syswrite |
353 | tell |
354 | telldir |
355 | tie |
356 | time |
357 | times |
358 | tr |
359 | truncate |
360 | uc |
361 | ucfirst |
362 | umask |
363 | undef |
364 | unless |
365 | unlink |
366 | unpack |
367 | unshift |
368 | untie |
369 | until |
370 | use |
371 | utime |
372 | values |
373 | vec |
374 | wait |
375 | waitpid |
376 | wantarray |
377 | warn |
378 | while |
379 | write |
380 | x |
381 | xor |
382 | y |
f50fdf03 |
383 | !NO!SUBS! |
384 | |
385 | close OUT or die "Can't close $file: $!"; |
386 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
387 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |