Commit | Line | Data |
---|---|---|
f50fdf03 | 1 | #!/usr/local/bin/perl |
2 | ||
3 | use Config; | |
4 | use File::Basename qw(&basename &dirname); | |
8a5546a1 | 5 | use Cwd; |
f50fdf03 | 6 | |
7 | # List explicitly here the variables you want Configure to | |
8 | # generate. Metaconfig only looks for shell variables, so you | |
9 | # have to mention them as if they were shell variables, not | |
10 | # %Config entries. Thus you write | |
11 | # $startperl | |
12 | # to ensure Configure will look for $Config{startperl}. | |
13 | ||
14 | # This forces PL files to create target in same directory as PL file. | |
15 | # This is so that make depend always knows where to find PL derivatives. | |
8a5546a1 | 16 | $origdir = cwd; |
44a8e56a | 17 | chdir dirname($0); |
18 | $file = basename($0, '.PL'); | |
774d564b | 19 | $file .= '.com' if $^O eq 'VMS'; |
f50fdf03 | 20 | |
21 | open OUT,">$file" or die "Can't create $file: $!"; | |
22 | ||
23 | print "Extracting $file (with variable substitutions)\n"; | |
24 | ||
25 | # In this section, perl variables will be expanded during extraction. | |
26 | # You can use $Config{...} to use Configure variables. | |
27 | ||
28 | print OUT <<"!GROK!THIS!"; | |
5f05dabc | 29 | $Config{startperl} |
30 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
31 | if \$running_under_some_shell; | |
f50fdf03 | 32 | !GROK!THIS! |
33 | ||
34 | # In the following, perl variables are not expanded during extraction. | |
35 | ||
36 | print OUT <<'!NO!SUBS!'; | |
37 | ||
38 | =head1 NAME | |
39 | ||
40 | pl2pm - Rough tool to translate Perl4 .pl files to Perl5 .pm modules. | |
41 | ||
42 | =head1 SYNOPSIS | |
43 | ||
44 | B<pl2pm> F<files> | |
45 | ||
46 | =head1 DESCRIPTION | |
47 | ||
48 | B<pl2pm> is a tool to aid in the conversion of Perl4-style .pl | |
49 | library files to Perl5-style library modules. Usually, your old .pl | |
50 | file will still work fine and you should only use this tool if you | |
51 | plan to update your library to use some of the newer Perl 5 features, | |
52 | such as AutoLoading. | |
53 | ||
54 | =head1 LIMITATIONS | |
55 | ||
56 | It's just a first step, but it's usually a good first step. | |
57 | ||
58 | =head1 AUTHOR | |
59 | ||
55497cff | 60 | Larry Wall <larry@wall.org> |
f50fdf03 | 61 | |
62 | =cut | |
a0d0e21e LW |
63 | |
64 | while (<DATA>) { | |
65 | chop; | |
66 | $keyword{$_} = 1; | |
67 | } | |
68 | ||
69 | undef $/; | |
70 | $* = 1; | |
71 | while (<>) { | |
72 | $newname = $ARGV; | |
73 | $newname =~ s/\.pl$/.pm/ || next; | |
74 | $newname =~ s#(.*/)?(\w+)#$1\u$2#; | |
75 | if (-f $newname) { | |
76 | warn "Won't overwrite existing $newname\n"; | |
77 | next; | |
78 | } | |
79 | $oldpack = $2; | |
80 | $newpack = "\u$2"; | |
81 | @export = (); | |
82 | print "$oldpack => $newpack\n" if $verbose; | |
83 | ||
748a9306 | 84 | s/\bstd(in|out|err)\b/\U$&/g; |
a0d0e21e LW |
85 | s/(sub\s+)(\w+)(\s*\{[ \t]*\n)\s*package\s+$oldpack\s*;[ \t]*\n+/${1}main'$2$3/ig; |
86 | if (/sub\s+main'/) { | |
87 | @export = m/sub\s+main'(\w+)/g; | |
88 | s/(sub\s+)main'(\w+)/$1$2/g; | |
89 | } | |
90 | else { | |
91 | @export = m/sub\s+([A-Za-z]\w*)/g; | |
92 | } | |
93 | @export_ok = grep($keyword{$_}, @export); | |
94 | @export = grep(!$keyword{$_}, @export); | |
95 | @export{@export} = (1) x @export; | |
96 | s/(^\s*);#/$1#/g; | |
97 | s/(#.*)require ['"]$oldpack\.pl['"]/$1use $newpack/; | |
98 | s/(package\s*)($oldpack)\s*;[ \t]*\n+//ig; | |
99 | s/([\$\@%&*])'(\w+)/&xlate($1,"",$2)/eg; | |
100 | s/([\$\@%&*]?)(\w+)'(\w+)/&xlate($1,$2,$3)/eg; | |
101 | if (!/\$\[\s*\)?\s*=\s*[^0\s]/) { | |
102 | s/^\s*(local\s*\()?\s*\$\[\s*\)?\s*=\s*0\s*;[ \t]*\n//g; | |
103 | s/\$\[\s*\+\s*//g; | |
104 | s/\s*\+\s*\$\[//g; | |
105 | s/\$\[/0/g; | |
106 | } | |
107 | s/open\s+(\w+)/open($1)/g; | |
108 | ||
109 | if (s/\bdie\b/croak/g) { | |
110 | $carp = "use Carp;\n"; | |
111 | s/croak "([^"]*)\\n"/croak "$1"/g; | |
112 | } | |
113 | else { | |
114 | $carp = ""; | |
115 | } | |
116 | if (@export_ok) { | |
117 | $export_ok = "\@EXPORT_OK = qw(@export_ok);\n"; | |
118 | } | |
119 | else { | |
120 | $export_ok = ""; | |
121 | } | |
122 | ||
123 | open(PM, ">$newname") || warn "Can't create $newname: $!\n"; | |
124 | print PM <<"END"; | |
125 | package $newpack; | |
126 | require 5.000; | |
127 | require Exporter; | |
128 | $carp | |
129 | \@ISA = qw(Exporter); | |
130 | \@EXPORT = qw(@export); | |
131 | $export_ok | |
132 | $_ | |
133 | END | |
134 | } | |
135 | ||
136 | sub xlate { | |
137 | local($prefix, $pack, $ident) = @_; | |
138 | if ($prefix eq '' && $ident =~ /^(t|s|m|d|ing|ll|ed|ve|re)$/) { | |
139 | "${pack}'$ident"; | |
140 | } | |
141 | elsif ($pack eq "" || $pack eq "main") { | |
142 | if ($export{$ident}) { | |
143 | "$prefix$ident"; | |
144 | } | |
145 | else { | |
146 | "$prefix${pack}::$ident"; | |
147 | } | |
148 | } | |
149 | elsif ($pack eq $oldpack) { | |
150 | "$prefix${newpack}::$ident"; | |
151 | } | |
152 | else { | |
153 | "$prefix${pack}::$ident"; | |
154 | } | |
155 | } | |
156 | __END__ | |
157 | AUTOLOAD | |
158 | BEGIN | |
159 | CORE | |
160 | DESTROY | |
161 | END | |
162 | abs | |
163 | accept | |
164 | alarm | |
165 | and | |
166 | atan2 | |
167 | bind | |
168 | binmode | |
169 | bless | |
170 | caller | |
171 | chdir | |
172 | chmod | |
173 | chop | |
174 | chown | |
175 | chr | |
176 | chroot | |
177 | close | |
178 | closedir | |
179 | cmp | |
180 | connect | |
181 | continue | |
182 | cos | |
183 | crypt | |
184 | dbmclose | |
185 | dbmopen | |
186 | defined | |
187 | delete | |
188 | die | |
189 | do | |
190 | dump | |
191 | each | |
192 | else | |
193 | elsif | |
194 | endgrent | |
195 | endhostent | |
196 | endnetent | |
197 | endprotoent | |
198 | endpwent | |
199 | endservent | |
200 | eof | |
201 | eq | |
202 | eval | |
203 | exec | |
204 | exit | |
205 | exp | |
206 | fcntl | |
207 | fileno | |
208 | flock | |
209 | for | |
210 | foreach | |
211 | fork | |
212 | format | |
213 | formline | |
214 | ge | |
215 | getc | |
216 | getgrent | |
217 | getgrgid | |
218 | getgrnam | |
219 | gethostbyaddr | |
220 | gethostbyname | |
221 | gethostent | |
222 | getlogin | |
223 | getnetbyaddr | |
224 | getnetbyname | |
225 | getnetent | |
226 | getpeername | |
227 | getpgrp | |
228 | getppid | |
229 | getpriority | |
230 | getprotobyname | |
231 | getprotobynumber | |
232 | getprotoent | |
233 | getpwent | |
234 | getpwnam | |
235 | getpwuid | |
236 | getservbyname | |
237 | getservbyport | |
238 | getservent | |
239 | getsockname | |
240 | getsockopt | |
241 | glob | |
242 | gmtime | |
243 | goto | |
244 | grep | |
245 | gt | |
246 | hex | |
247 | if | |
248 | index | |
249 | int | |
250 | ioctl | |
251 | join | |
252 | keys | |
253 | kill | |
254 | last | |
255 | lc | |
256 | lcfirst | |
257 | le | |
258 | length | |
259 | link | |
260 | listen | |
261 | local | |
262 | localtime | |
263 | log | |
264 | lstat | |
265 | lt | |
266 | m | |
267 | mkdir | |
268 | msgctl | |
269 | msgget | |
270 | msgrcv | |
271 | msgsnd | |
272 | my | |
273 | ne | |
274 | next | |
275 | no | |
276 | not | |
277 | oct | |
278 | open | |
279 | opendir | |
280 | or | |
281 | ord | |
282 | pack | |
283 | package | |
284 | pipe | |
285 | pop | |
286 | ||
287 | printf | |
288 | push | |
289 | q | |
290 | ||
291 | quotemeta | |
292 | qw | |
293 | qx | |
294 | rand | |
295 | read | |
296 | readdir | |
297 | readline | |
298 | readlink | |
299 | readpipe | |
300 | recv | |
301 | redo | |
302 | ref | |
303 | rename | |
304 | require | |
305 | reset | |
306 | return | |
307 | reverse | |
308 | rewinddir | |
309 | rindex | |
310 | rmdir | |
311 | s | |
312 | scalar | |
313 | seek | |
314 | seekdir | |
315 | select | |
316 | semctl | |
317 | semget | |
318 | semop | |
319 | send | |
320 | setgrent | |
321 | sethostent | |
322 | setnetent | |
323 | setpgrp | |
324 | setpriority | |
325 | setprotoent | |
326 | setpwent | |
327 | setservent | |
328 | setsockopt | |
329 | shift | |
330 | shmctl | |
331 | shmget | |
332 | shmread | |
333 | shmwrite | |
334 | shutdown | |
335 | sin | |
336 | sleep | |
337 | socket | |
338 | socketpair | |
339 | sort | |
340 | splice | |
341 | split | |
342 | sprintf | |
343 | sqrt | |
344 | srand | |
345 | stat | |
346 | study | |
347 | sub | |
348 | substr | |
349 | symlink | |
350 | syscall | |
351 | sysread | |
352 | system | |
353 | syswrite | |
354 | tell | |
355 | telldir | |
356 | tie | |
357 | time | |
358 | times | |
359 | tr | |
360 | truncate | |
361 | uc | |
362 | ucfirst | |
363 | umask | |
364 | undef | |
365 | unless | |
366 | unlink | |
367 | unpack | |
368 | unshift | |
369 | untie | |
370 | until | |
371 | use | |
372 | utime | |
373 | values | |
374 | vec | |
375 | wait | |
376 | waitpid | |
377 | wantarray | |
378 | warn | |
379 | while | |
380 | write | |
381 | x | |
382 | xor | |
383 | y | |
f50fdf03 | 384 | !NO!SUBS! |
385 | ||
386 | close OUT or die "Can't close $file: $!"; | |
387 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
388 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
8a5546a1 | 389 | chdir $origdir; |