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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. | |
44a8e56a | 15 | chdir dirname($0); |
16 | $file = basename($0, '.PL'); | |
774d564b | 17 | $file .= '.com' if $^O eq 'VMS'; |
f50fdf03 | 18 | |
19 | open OUT,">$file" or die "Can't create $file: $!"; | |
20 | ||
21 | print "Extracting $file (with variable substitutions)\n"; | |
22 | ||
23 | # In this section, perl variables will be expanded during extraction. | |
24 | # You can use $Config{...} to use Configure variables. | |
25 | ||
26 | print OUT <<"!GROK!THIS!"; | |
5f05dabc | 27 | $Config{startperl} |
28 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
29 | if \$running_under_some_shell; | |
f50fdf03 | 30 | !GROK!THIS! |
31 | ||
32 | # In the following, perl variables are not expanded during extraction. | |
33 | ||
34 | print OUT <<'!NO!SUBS!'; | |
35 | ||
36 | =head1 NAME | |
37 | ||
38 | pl2pm - Rough tool to translate Perl4 .pl files to Perl5 .pm modules. | |
39 | ||
40 | =head1 SYNOPSIS | |
41 | ||
42 | B<pl2pm> F<files> | |
43 | ||
44 | =head1 DESCRIPTION | |
45 | ||
46 | B<pl2pm> is a tool to aid in the conversion of Perl4-style .pl | |
47 | library files to Perl5-style library modules. Usually, your old .pl | |
48 | file will still work fine and you should only use this tool if you | |
49 | plan to update your library to use some of the newer Perl 5 features, | |
50 | such as AutoLoading. | |
51 | ||
52 | =head1 LIMITATIONS | |
53 | ||
54 | It's just a first step, but it's usually a good first step. | |
55 | ||
56 | =head1 AUTHOR | |
57 | ||
55497cff | 58 | Larry Wall <larry@wall.org> |
f50fdf03 | 59 | |
60 | =cut | |
a0d0e21e LW |
61 | |
62 | while (<DATA>) { | |
63 | chop; | |
64 | $keyword{$_} = 1; | |
65 | } | |
66 | ||
67 | undef $/; | |
68 | $* = 1; | |
69 | while (<>) { | |
70 | $newname = $ARGV; | |
71 | $newname =~ s/\.pl$/.pm/ || next; | |
72 | $newname =~ s#(.*/)?(\w+)#$1\u$2#; | |
73 | if (-f $newname) { | |
74 | warn "Won't overwrite existing $newname\n"; | |
75 | next; | |
76 | } | |
77 | $oldpack = $2; | |
78 | $newpack = "\u$2"; | |
79 | @export = (); | |
80 | print "$oldpack => $newpack\n" if $verbose; | |
81 | ||
748a9306 | 82 | s/\bstd(in|out|err)\b/\U$&/g; |
a0d0e21e LW |
83 | s/(sub\s+)(\w+)(\s*\{[ \t]*\n)\s*package\s+$oldpack\s*;[ \t]*\n+/${1}main'$2$3/ig; |
84 | if (/sub\s+main'/) { | |
85 | @export = m/sub\s+main'(\w+)/g; | |
86 | s/(sub\s+)main'(\w+)/$1$2/g; | |
87 | } | |
88 | else { | |
89 | @export = m/sub\s+([A-Za-z]\w*)/g; | |
90 | } | |
91 | @export_ok = grep($keyword{$_}, @export); | |
92 | @export = grep(!$keyword{$_}, @export); | |
93 | @export{@export} = (1) x @export; | |
94 | s/(^\s*);#/$1#/g; | |
95 | s/(#.*)require ['"]$oldpack\.pl['"]/$1use $newpack/; | |
96 | s/(package\s*)($oldpack)\s*;[ \t]*\n+//ig; | |
97 | s/([\$\@%&*])'(\w+)/&xlate($1,"",$2)/eg; | |
98 | s/([\$\@%&*]?)(\w+)'(\w+)/&xlate($1,$2,$3)/eg; | |
99 | if (!/\$\[\s*\)?\s*=\s*[^0\s]/) { | |
100 | s/^\s*(local\s*\()?\s*\$\[\s*\)?\s*=\s*0\s*;[ \t]*\n//g; | |
101 | s/\$\[\s*\+\s*//g; | |
102 | s/\s*\+\s*\$\[//g; | |
103 | s/\$\[/0/g; | |
104 | } | |
105 | s/open\s+(\w+)/open($1)/g; | |
106 | ||
107 | if (s/\bdie\b/croak/g) { | |
108 | $carp = "use Carp;\n"; | |
109 | s/croak "([^"]*)\\n"/croak "$1"/g; | |
110 | } | |
111 | else { | |
112 | $carp = ""; | |
113 | } | |
114 | if (@export_ok) { | |
115 | $export_ok = "\@EXPORT_OK = qw(@export_ok);\n"; | |
116 | } | |
117 | else { | |
118 | $export_ok = ""; | |
119 | } | |
120 | ||
121 | open(PM, ">$newname") || warn "Can't create $newname: $!\n"; | |
122 | print PM <<"END"; | |
123 | package $newpack; | |
124 | require 5.000; | |
125 | require Exporter; | |
126 | $carp | |
127 | \@ISA = qw(Exporter); | |
128 | \@EXPORT = qw(@export); | |
129 | $export_ok | |
130 | $_ | |
131 | END | |
132 | } | |
133 | ||
134 | sub xlate { | |
135 | local($prefix, $pack, $ident) = @_; | |
136 | if ($prefix eq '' && $ident =~ /^(t|s|m|d|ing|ll|ed|ve|re)$/) { | |
137 | "${pack}'$ident"; | |
138 | } | |
139 | elsif ($pack eq "" || $pack eq "main") { | |
140 | if ($export{$ident}) { | |
141 | "$prefix$ident"; | |
142 | } | |
143 | else { | |
144 | "$prefix${pack}::$ident"; | |
145 | } | |
146 | } | |
147 | elsif ($pack eq $oldpack) { | |
148 | "$prefix${newpack}::$ident"; | |
149 | } | |
150 | else { | |
151 | "$prefix${pack}::$ident"; | |
152 | } | |
153 | } | |
154 | __END__ | |
155 | AUTOLOAD | |
156 | BEGIN | |
157 | CORE | |
158 | DESTROY | |
159 | END | |
160 | abs | |
161 | accept | |
162 | alarm | |
163 | and | |
164 | atan2 | |
165 | bind | |
166 | binmode | |
167 | bless | |
168 | caller | |
169 | chdir | |
170 | chmod | |
171 | chop | |
172 | chown | |
173 | chr | |
174 | chroot | |
175 | close | |
176 | closedir | |
177 | cmp | |
178 | connect | |
179 | continue | |
180 | cos | |
181 | crypt | |
182 | dbmclose | |
183 | dbmopen | |
184 | defined | |
185 | delete | |
186 | die | |
187 | do | |
188 | dump | |
189 | each | |
190 | else | |
191 | elsif | |
192 | endgrent | |
193 | endhostent | |
194 | endnetent | |
195 | endprotoent | |
196 | endpwent | |
197 | endservent | |
198 | eof | |
199 | eq | |
200 | eval | |
201 | exec | |
202 | exit | |
203 | exp | |
204 | fcntl | |
205 | fileno | |
206 | flock | |
207 | for | |
208 | foreach | |
209 | fork | |
210 | format | |
211 | formline | |
212 | ge | |
213 | getc | |
214 | getgrent | |
215 | getgrgid | |
216 | getgrnam | |
217 | gethostbyaddr | |
218 | gethostbyname | |
219 | gethostent | |
220 | getlogin | |
221 | getnetbyaddr | |
222 | getnetbyname | |
223 | getnetent | |
224 | getpeername | |
225 | getpgrp | |
226 | getppid | |
227 | getpriority | |
228 | getprotobyname | |
229 | getprotobynumber | |
230 | getprotoent | |
231 | getpwent | |
232 | getpwnam | |
233 | getpwuid | |
234 | getservbyname | |
235 | getservbyport | |
236 | getservent | |
237 | getsockname | |
238 | getsockopt | |
239 | glob | |
240 | gmtime | |
241 | goto | |
242 | grep | |
243 | gt | |
244 | hex | |
245 | if | |
246 | index | |
247 | int | |
248 | ioctl | |
249 | join | |
250 | keys | |
251 | kill | |
252 | last | |
253 | lc | |
254 | lcfirst | |
255 | le | |
256 | length | |
257 | link | |
258 | listen | |
259 | local | |
260 | localtime | |
261 | log | |
262 | lstat | |
263 | lt | |
264 | m | |
265 | mkdir | |
266 | msgctl | |
267 | msgget | |
268 | msgrcv | |
269 | msgsnd | |
270 | my | |
271 | ne | |
272 | next | |
273 | no | |
274 | not | |
275 | oct | |
276 | open | |
277 | opendir | |
278 | or | |
279 | ord | |
280 | pack | |
281 | package | |
282 | pipe | |
283 | pop | |
284 | ||
285 | printf | |
286 | push | |
287 | q | |
288 | ||
289 | quotemeta | |
290 | qw | |
291 | qx | |
292 | rand | |
293 | read | |
294 | readdir | |
295 | readline | |
296 | readlink | |
297 | readpipe | |
298 | recv | |
299 | redo | |
300 | ref | |
301 | rename | |
302 | require | |
303 | reset | |
304 | return | |
305 | reverse | |
306 | rewinddir | |
307 | rindex | |
308 | rmdir | |
309 | s | |
310 | scalar | |
311 | seek | |
312 | seekdir | |
313 | select | |
314 | semctl | |
315 | semget | |
316 | semop | |
317 | send | |
318 | setgrent | |
319 | sethostent | |
320 | setnetent | |
321 | setpgrp | |
322 | setpriority | |
323 | setprotoent | |
324 | setpwent | |
325 | setservent | |
326 | setsockopt | |
327 | shift | |
328 | shmctl | |
329 | shmget | |
330 | shmread | |
331 | shmwrite | |
332 | shutdown | |
333 | sin | |
334 | sleep | |
335 | socket | |
336 | socketpair | |
337 | sort | |
338 | splice | |
339 | split | |
340 | sprintf | |
341 | sqrt | |
342 | srand | |
343 | stat | |
344 | study | |
345 | sub | |
346 | substr | |
347 | symlink | |
348 | syscall | |
349 | sysread | |
350 | system | |
351 | syswrite | |
352 | tell | |
353 | telldir | |
354 | tie | |
355 | time | |
356 | times | |
357 | tr | |
358 | truncate | |
359 | uc | |
360 | ucfirst | |
361 | umask | |
362 | undef | |
363 | unless | |
364 | unlink | |
365 | unpack | |
366 | unshift | |
367 | untie | |
368 | until | |
369 | use | |
370 | utime | |
371 | values | |
372 | vec | |
373 | wait | |
374 | waitpid | |
375 | wantarray | |
376 | warn | |
377 | while | |
378 | write | |
379 | x | |
380 | xor | |
381 | y | |
f50fdf03 | 382 | !NO!SUBS! |
383 | ||
384 | close OUT or die "Can't close $file: $!"; | |
385 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
386 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |