Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | #!/import/archperf/ws/devtools/4/amd64/bin/perl |
2 | eval 'exec /import/archperf/ws/devtools/4/amd64/bin/perl -S $0 ${1+"$@"}' | |
3 | if $running_under_some_shell; | |
4 | ||
5 | =head1 NAME | |
6 | ||
7 | pl2pm - Rough tool to translate Perl4 .pl files to Perl5 .pm modules. | |
8 | ||
9 | =head1 SYNOPSIS | |
10 | ||
11 | B<pl2pm> F<files> | |
12 | ||
13 | =head1 DESCRIPTION | |
14 | ||
15 | B<pl2pm> is a tool to aid in the conversion of Perl4-style .pl | |
16 | library files to Perl5-style library modules. Usually, your old .pl | |
17 | file will still work fine and you should only use this tool if you | |
18 | plan to update your library to use some of the newer Perl 5 features, | |
19 | such as AutoLoading. | |
20 | ||
21 | =head1 LIMITATIONS | |
22 | ||
23 | It's just a first step, but it's usually a good first step. | |
24 | ||
25 | =head1 AUTHOR | |
26 | ||
27 | Larry Wall <larry@wall.org> | |
28 | ||
29 | =cut | |
30 | ||
31 | use strict; | |
32 | use warnings; | |
33 | ||
34 | my %keyword = (); | |
35 | ||
36 | while (<DATA>) { | |
37 | chomp; | |
38 | $keyword{$_} = 1; | |
39 | } | |
40 | ||
41 | local $/; | |
42 | ||
43 | while (<>) { | |
44 | my $newname = $ARGV; | |
45 | $newname =~ s/\.pl$/.pm/ || next; | |
46 | $newname =~ s#(.*/)?(\w+)#$1\u$2#; | |
47 | if (-f $newname) { | |
48 | warn "Won't overwrite existing $newname\n"; | |
49 | next; | |
50 | } | |
51 | my $oldpack = $2; | |
52 | my $newpack = "\u$2"; | |
53 | my @export = (); | |
54 | ||
55 | s/\bstd(in|out|err)\b/\U$&/g; | |
56 | s/(sub\s+)(\w+)(\s*\{[ \t]*\n)\s*package\s+$oldpack\s*;[ \t]*\n+/${1}main'$2$3/ig; | |
57 | if (/sub\s+\w+'/) { | |
58 | @export = m/sub\s+\w+'(\w+)/g; | |
59 | s/(sub\s+)main'(\w+)/$1$2/g; | |
60 | } | |
61 | else { | |
62 | @export = m/sub\s+([A-Za-z]\w*)/g; | |
63 | } | |
64 | my @export_ok = grep($keyword{$_}, @export); | |
65 | @export = grep(!$keyword{$_}, @export); | |
66 | ||
67 | my %export = (); | |
68 | @export{@export} = (1) x @export; | |
69 | ||
70 | s/(^\s*);#/$1#/g; | |
71 | s/(#.*)require ['"]$oldpack\.pl['"]/$1use $newpack/; | |
72 | s/(package\s*)($oldpack)\s*;[ \t]*\n+//ig; | |
73 | s/([\$\@%&*])'(\w+)/&xlate($1,"",$2,$newpack,$oldpack,\%export)/eg; | |
74 | s/([\$\@%&*]?)(\w+)'(\w+)/&xlate($1,$2,$3,$newpack,$oldpack,\%export)/eg; | |
75 | if (!/\$\[\s*\)?\s*=\s*[^0\s]/) { | |
76 | s/^\s*(local\s*\()?\s*\$\[\s*\)?\s*=\s*0\s*;[ \t]*\n//g; | |
77 | s/\$\[\s*\+\s*//g; | |
78 | s/\s*\+\s*\$\[//g; | |
79 | s/\$\[/0/g; | |
80 | } | |
81 | s/open\s+(\w+)/open($1)/g; | |
82 | ||
83 | my $export_ok = ''; | |
84 | my $carp =''; | |
85 | ||
86 | ||
87 | if (s/\bdie\b/croak/g) { | |
88 | $carp = "use Carp;\n"; | |
89 | s/croak "([^"]*)\\n"/croak "$1"/g; | |
90 | } | |
91 | ||
92 | if (@export_ok) { | |
93 | $export_ok = "\@EXPORT_OK = qw(@export_ok);\n"; | |
94 | } | |
95 | ||
96 | if ( open(PM, ">$newname") ) { | |
97 | print PM <<"END"; | |
98 | package $newpack; | |
99 | use 5.006; | |
100 | require Exporter; | |
101 | $carp | |
102 | \@ISA = qw(Exporter); | |
103 | \@EXPORT = qw(@export); | |
104 | $export_ok | |
105 | $_ | |
106 | END | |
107 | } | |
108 | else { | |
109 | warn "Can't create $newname: $!\n"; | |
110 | } | |
111 | } | |
112 | ||
113 | sub xlate { | |
114 | my ($prefix, $pack, $ident,$newpack,$oldpack,$export) = @_; | |
115 | ||
116 | my $xlated ; | |
117 | if ($prefix eq '' && $ident =~ /^(t|s|m|d|ing|ll|ed|ve|re)$/) { | |
118 | $xlated = "${pack}'$ident"; | |
119 | } | |
120 | elsif ($pack eq '' || $pack eq 'main') { | |
121 | if ($export->{$ident}) { | |
122 | $xlated = "$prefix$ident"; | |
123 | } | |
124 | else { | |
125 | $xlated = "$prefix${pack}::$ident"; | |
126 | } | |
127 | } | |
128 | elsif ($pack eq $oldpack) { | |
129 | $xlated = "$prefix${newpack}::$ident"; | |
130 | } | |
131 | else { | |
132 | $xlated = "$prefix${pack}::$ident"; | |
133 | } | |
134 | ||
135 | return $xlated; | |
136 | } | |
137 | __END__ | |
138 | AUTOLOAD | |
139 | BEGIN | |
140 | CORE | |
141 | DESTROY | |
142 | END | |
143 | INIT | |
144 | CHECK | |
145 | abs | |
146 | accept | |
147 | alarm | |
148 | and | |
149 | atan2 | |
150 | bind | |
151 | binmode | |
152 | bless | |
153 | caller | |
154 | chdir | |
155 | chmod | |
156 | chomp | |
157 | chop | |
158 | chown | |
159 | chr | |
160 | chroot | |
161 | close | |
162 | closedir | |
163 | cmp | |
164 | connect | |
165 | continue | |
166 | cos | |
167 | crypt | |
168 | dbmclose | |
169 | dbmopen | |
170 | defined | |
171 | delete | |
172 | die | |
173 | do | |
174 | dump | |
175 | each | |
176 | else | |
177 | elsif | |
178 | endgrent | |
179 | endhostent | |
180 | endnetent | |
181 | endprotoent | |
182 | endpwent | |
183 | endservent | |
184 | eof | |
185 | eq | |
186 | eval | |
187 | exec | |
188 | exists | |
189 | exit | |
190 | exp | |
191 | fcntl | |
192 | fileno | |
193 | flock | |
194 | for | |
195 | foreach | |
196 | fork | |
197 | format | |
198 | formline | |
199 | ge | |
200 | getc | |
201 | getgrent | |
202 | getgrgid | |
203 | getgrnam | |
204 | gethostbyaddr | |
205 | gethostbyname | |
206 | gethostent | |
207 | getlogin | |
208 | getnetbyaddr | |
209 | getnetbyname | |
210 | getnetent | |
211 | getpeername | |
212 | getpgrp | |
213 | getppid | |
214 | getpriority | |
215 | getprotobyname | |
216 | getprotobynumber | |
217 | getprotoent | |
218 | getpwent | |
219 | getpwnam | |
220 | getpwuid | |
221 | getservbyname | |
222 | getservbyport | |
223 | getservent | |
224 | getsockname | |
225 | getsockopt | |
226 | glob | |
227 | gmtime | |
228 | goto | |
229 | grep | |
230 | gt | |
231 | hex | |
232 | if | |
233 | index | |
234 | int | |
235 | ioctl | |
236 | join | |
237 | keys | |
238 | kill | |
239 | last | |
240 | lc | |
241 | lcfirst | |
242 | le | |
243 | length | |
244 | link | |
245 | listen | |
246 | local | |
247 | localtime | |
248 | lock | |
249 | log | |
250 | lstat | |
251 | lt | |
252 | m | |
253 | map | |
254 | mkdir | |
255 | msgctl | |
256 | msgget | |
257 | msgrcv | |
258 | msgsnd | |
259 | my | |
260 | ne | |
261 | next | |
262 | no | |
263 | not | |
264 | oct | |
265 | open | |
266 | opendir | |
267 | or | |
268 | ord | |
269 | our | |
270 | pack | |
271 | package | |
272 | pipe | |
273 | pop | |
274 | pos | |
275 | ||
276 | printf | |
277 | prototype | |
278 | push | |
279 | q | |
280 | ||
281 | qr | |
282 | quotemeta | |
283 | qw | |
284 | qx | |
285 | rand | |
286 | read | |
287 | readdir | |
288 | readline | |
289 | readlink | |
290 | readpipe | |
291 | recv | |
292 | redo | |
293 | ref | |
294 | rename | |
295 | require | |
296 | reset | |
297 | return | |
298 | reverse | |
299 | rewinddir | |
300 | rindex | |
301 | rmdir | |
302 | s | |
303 | scalar | |
304 | seek | |
305 | seekdir | |
306 | select | |
307 | semctl | |
308 | semget | |
309 | semop | |
310 | send | |
311 | setgrent | |
312 | sethostent | |
313 | setnetent | |
314 | setpgrp | |
315 | setpriority | |
316 | setprotoent | |
317 | setpwent | |
318 | setservent | |
319 | setsockopt | |
320 | shift | |
321 | shmctl | |
322 | shmget | |
323 | shmread | |
324 | shmwrite | |
325 | shutdown | |
326 | sin | |
327 | sleep | |
328 | socket | |
329 | socketpair | |
330 | sort | |
331 | splice | |
332 | split | |
333 | sprintf | |
334 | sqrt | |
335 | srand | |
336 | stat | |
337 | study | |
338 | sub | |
339 | substr | |
340 | symlink | |
341 | syscall | |
342 | sysopen | |
343 | sysread | |
344 | sysseek | |
345 | system | |
346 | syswrite | |
347 | tell | |
348 | telldir | |
349 | tie | |
350 | tied | |
351 | time | |
352 | times | |
353 | tr | |
354 | truncate | |
355 | uc | |
356 | ucfirst | |
357 | umask | |
358 | undef | |
359 | unless | |
360 | unlink | |
361 | unpack | |
362 | unshift | |
363 | untie | |
364 | until | |
365 | use | |
366 | utime | |
367 | values | |
368 | vec | |
369 | wait | |
370 | waitpid | |
371 | wantarray | |
372 | warn | |
373 | while | |
374 | write | |
375 | x | |
376 | xor | |
377 | y |