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1 | ################################################################################ |
2 | # |
3 | # ppptools.pl -- various utility functions |
4 | # |
5 | ################################################################################ |
6 | # |
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7 | # $Revision: 22 $ |
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8 | # $Author: mhx $ |
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9 | # $Date: 2007/08/19 01:18:23 +0200 $ |
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10 | # |
11 | ################################################################################ |
12 | # |
d2dacc4f |
13 | # Version 3.x, Copyright (C) 2004-2007, Marcus Holland-Moritz. |
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14 | # Version 2.x, Copyright (C) 2001, Paul Marquess. |
15 | # Version 1.x, Copyright (C) 1999, Kenneth Albanowski. |
16 | # |
17 | # This program is free software; you can redistribute it and/or |
18 | # modify it under the same terms as Perl itself. |
19 | # |
20 | ################################################################################ |
21 | |
1d088ed8 |
22 | sub cat_file |
23 | { |
24 | eval { require File::Spec }; |
25 | return $@ ? join('/', @_) : File::Spec->catfile(@_); |
26 | } |
27 | |
28 | sub all_files_in_dir |
29 | { |
30 | my $dir = shift; |
31 | local *DIR; |
32 | |
33 | opendir DIR, $dir or die "cannot open directory $dir: $!\n"; |
34 | my @files = grep { !-d && !/^\./ } readdir DIR; # no dirs or hidden files |
35 | closedir DIR; |
36 | |
37 | return map { cat_file($dir, $_) } @files; |
38 | } |
39 | |
adfe19db |
40 | sub parse_todo |
41 | { |
42 | my $dir = shift || 'parts/todo'; |
43 | local *TODO; |
44 | my %todo; |
45 | my $todo; |
46 | |
1d088ed8 |
47 | for $todo (all_files_in_dir($dir)) { |
adfe19db |
48 | open TODO, $todo or die "cannot open $todo: $!\n"; |
49 | my $perl = <TODO>; |
50 | chomp $perl; |
51 | while (<TODO>) { |
52 | chomp; |
53 | s/#.*//; |
54 | s/^\s+//; s/\s+$//; |
55 | /^\s*$/ and next; |
56 | /^\w+$/ or die "invalid identifier: $_\n"; |
57 | exists $todo{$_} and die "duplicate identifier: $_ ($todo{$_} <=> $perl)\n"; |
58 | $todo{$_} = $perl; |
59 | } |
60 | close TODO; |
61 | } |
62 | |
63 | return \%todo; |
64 | } |
65 | |
96ad942f |
66 | sub expand_version |
67 | { |
68 | my($op, $ver) = @_; |
69 | my($r, $v, $s) = parse_version($ver); |
70 | $r == 5 or die "only Perl revision 5 is supported\n"; |
c83e6f19 |
71 | my $bcdver = sprintf "0x%d%03d%03d", $r, $v, $s; |
72 | return "(PERL_BCDVERSION $op $bcdver)"; |
96ad942f |
73 | } |
74 | |
adfe19db |
75 | sub parse_partspec |
76 | { |
77 | my $file = shift; |
78 | my $section = 'implementation'; |
79 | my $vsec = join '|', qw( provides dontwarn implementation |
80 | xsubs xsinit xsmisc xshead xsboot tests ); |
81 | my(%data, %options); |
82 | local *F; |
83 | |
84 | open F, $file or die "$file: $!\n"; |
85 | while (<F>) { |
c83e6f19 |
86 | /[ \t]+$/ and warn "$file:$.: warning: trailing whitespace\n"; |
87 | if ($section eq 'implementation') { |
88 | m!//! && !m!(?:=~|s/).*//! && !m!(?:ht|f)tp://! |
89 | and warn "$file:$.: warning: potential C++ comment\n"; |
90 | } |
adfe19db |
91 | /^##/ and next; |
92 | if (/^=($vsec)(?:\s+(.*))?/) { |
93 | $section = $1; |
94 | if (defined $2) { |
95 | my $opt = $2; |
96 | $options{$section} = eval "{ $opt }"; |
c83e6f19 |
97 | $@ and die "$file:$.: invalid options ($opt) in section $section: $@\n"; |
adfe19db |
98 | } |
99 | next; |
100 | } |
101 | push @{$data{$section}}, $_; |
102 | } |
103 | close F; |
104 | |
105 | for (keys %data) { |
106 | my @v = @{$data{$_}}; |
107 | shift @v while @v && $v[0] =~ /^\s*$/; |
108 | pop @v while @v && $v[-1] =~ /^\s*$/; |
109 | $data{$_} = join '', @v; |
110 | } |
111 | |
112 | unless (exists $data{provides}) { |
679ad62d |
113 | $data{provides} = ($file =~ /(\w+)$/)[0]; |
adfe19db |
114 | } |
115 | $data{provides} = [$data{provides} =~ /(\S+)/g]; |
116 | |
117 | if (exists $data{dontwarn}) { |
118 | $data{dontwarn} = [$data{dontwarn} =~ /(\S+)/g]; |
119 | } |
120 | |
121 | my @prov; |
122 | my %proto; |
123 | |
124 | if (exists $data{tests} && (!exists $data{implementation} || $data{implementation} !~ /\S/)) { |
125 | $data{implementation} = ''; |
126 | } |
127 | else { |
128 | $data{implementation} =~ /\S/ or die "Empty implementation in $file\n"; |
129 | |
130 | my $p; |
131 | |
132 | for $p (@{$data{provides}}) { |
133 | if ($p =~ m#^/.*/\w*$#) { |
134 | my @tmp = eval "\$data{implementation} =~ ${p}gm"; |
135 | $@ and die "invalid regex $p in $file\n"; |
136 | @tmp or warn "no matches for regex $p in $file\n"; |
137 | push @prov, do { my %h; grep !$h{$_}++, @tmp }; |
138 | } |
139 | elsif ($p eq '__UNDEFINED__') { |
140 | my @tmp = $data{implementation} =~ /^\s*__UNDEFINED__[^\r\n\S]+(\w+)/gm; |
141 | @tmp or warn "no __UNDEFINED__ macros in $file\n"; |
142 | push @prov, @tmp; |
143 | } |
144 | else { |
145 | push @prov, $p; |
146 | } |
147 | } |
148 | |
149 | for (@prov) { |
150 | if ($data{implementation} !~ /\b\Q$_\E\b/) { |
151 | warn "$file claims to provide $_, but doesn't seem to do so\n"; |
152 | next; |
153 | } |
154 | |
155 | # scan for prototypes |
156 | my($proto) = $data{implementation} =~ / |
157 | ( ^ (?:[\w*]|[^\S\r\n])+ |
158 | [\r\n]*? |
159 | ^ \b$_\b \s* |
160 | \( [^{]* \) |
161 | ) |
162 | \s* \{ |
163 | /xm or next; |
164 | |
165 | $proto =~ s/^\s+//; |
166 | $proto =~ s/\s+$//; |
167 | $proto =~ s/\s+/ /g; |
168 | |
169 | exists $proto{$_} and warn "$file: duplicate prototype for $_\n"; |
170 | $proto{$_} = $proto; |
171 | } |
172 | } |
173 | |
96ad942f |
174 | for $section (qw( implementation xsubs xsinit xsmisc xshead xsboot )) { |
175 | if (exists $data{$section}) { |
176 | $data{$section} =~ s/\{\s*version\s*(<|>|==|!=|>=|<=)\s*([\d._]+)\s*\}/expand_version($1, $2)/gei; |
177 | } |
178 | } |
179 | |
adfe19db |
180 | $data{provides} = \@prov; |
181 | $data{prototypes} = \%proto; |
182 | $data{OPTIONS} = \%options; |
183 | |
184 | my %prov = map { ($_ => 1) } @prov; |
185 | my %dontwarn = exists $data{dontwarn} ? map { ($_ => 1) } @{$data{dontwarn}} : (); |
186 | my @maybeprov = do { my %h; |
187 | grep { |
188 | my($nop) = /^Perl_(.*)/; |
189 | not exists $prov{$_} || |
190 | exists $dontwarn{$_} || |
191 | (defined $nop && exists $prov{$nop} ) || |
192 | (defined $nop && exists $dontwarn{$nop}) || |
193 | $h{$_}++; |
194 | } |
af36fda7 |
195 | $data{implementation} =~ /^\s*#\s*define\s+(\w+)/gm }; |
adfe19db |
196 | |
197 | if (@maybeprov) { |
198 | warn "$file seems to provide these macros, but doesn't list them:\n " |
199 | . join("\n ", @maybeprov) . "\n"; |
200 | } |
201 | |
202 | return \%data; |
203 | } |
204 | |
205 | sub compare_prototypes |
206 | { |
207 | my($p1, $p2) = @_; |
208 | for ($p1, $p2) { |
209 | s/^\s+//; |
210 | s/\s+$//; |
211 | s/\s+/ /g; |
212 | s/(\w)\s(\W)/$1$2/g; |
213 | s/(\W)\s(\w)/$1$2/g; |
214 | } |
215 | return $p1 cmp $p2; |
216 | } |
217 | |
218 | sub ppcond |
219 | { |
220 | my $s = shift; |
221 | my @c; |
222 | my $p; |
223 | |
224 | for $p (@$s) { |
225 | push @c, map "!($_)", @{$p->{pre}}; |
226 | defined $p->{cur} and push @c, "($p->{cur})"; |
227 | } |
228 | |
229 | join " && ", @c; |
230 | } |
231 | |
232 | sub trim_arg |
233 | { |
234 | my $in = shift; |
4a582685 |
235 | my $remove = join '|', qw( NN NULLOK ); |
adfe19db |
236 | |
237 | $in eq '...' and return ($in); |
238 | |
239 | local $_ = $in; |
240 | my $id; |
4a582685 |
241 | |
adfe19db |
242 | s/[*()]/ /g; |
243 | s/\[[^\]]*\]/ /g; |
244 | s/\b(?:auto|const|extern|inline|register|static|volatile|restrict)\b//g; |
4a582685 |
245 | s/\b(?:$remove)\b//; |
adfe19db |
246 | s/^\s*//; s/\s*$//; |
247 | |
248 | if( /^\b(?:struct|union|enum)\s+\w+(?:\s+(\w+))?$/ ) { |
249 | defined $1 and $id = $1; |
250 | } |
251 | else { |
252 | if( s/\b(?:char|double|float|int|long|short|signed|unsigned|void)\b//g ) { |
253 | /^\s*(\w+)\s*$/ and $id = $1; |
254 | } |
255 | else { |
256 | /^\s*\w+\s+(\w+)\s*$/ and $id = $1; |
257 | } |
258 | } |
259 | |
260 | $_ = $in; |
261 | |
262 | defined $id and s/\b$id\b//; |
263 | |
264 | # these don't matter at all |
265 | s/\b(?:auto|extern|inline|register|static|volatile|restrict)\b//g; |
4a582685 |
266 | s/\b(?:$remove)\b//; |
adfe19db |
267 | |
268 | s/(?=<\*)\s+(?=\*)//g; |
269 | s/\s*(\*+)\s*/ $1 /g; |
270 | s/^\s*//; s/\s*$//; |
271 | s/\s+/ /g; |
272 | |
273 | return ($_, $id); |
274 | } |
275 | |
276 | sub parse_embed |
277 | { |
278 | my @files = @_; |
279 | my @func; |
280 | my @pps; |
281 | my $file; |
282 | local *FILE; |
283 | |
284 | for $file (@files) { |
285 | open FILE, $file or die "$file: $!\n"; |
286 | my($line, $l); |
287 | |
288 | while (defined($line = <FILE>)) { |
289 | while ($line =~ /\\$/ && defined($l = <FILE>)) { |
290 | $line =~ s/\\\s*//; |
291 | $line .= $l; |
292 | } |
293 | next if $line =~ /^\s*:/; |
294 | $line =~ s/^\s+|\s+$//gs; |
295 | my($dir, $args) = ($line =~ /^\s*#\s*(\w+)(?:\s*(.*?)\s*)?$/); |
296 | if (defined $dir and defined $args) { |
297 | for ($dir) { |
298 | /^ifdef$/ and do { push @pps, { pre => [], cur => "defined($args)" } ; last }; |
299 | /^ifndef$/ and do { push @pps, { pre => [], cur => "!defined($args)" } ; last }; |
300 | /^if$/ and do { push @pps, { pre => [], cur => $args } ; last }; |
301 | /^elif$/ and do { push @{$pps[-1]{pre}}, $pps[-1]{cur}; $pps[-1]{cur} = $args; last }; |
302 | /^else$/ and do { push @{$pps[-1]{pre}}, $pps[-1]{cur}; $pps[-1]{cur} = undef; last }; |
303 | /^endif$/ and do { pop @pps ; last }; |
304 | /^include$/ and last; |
305 | /^define$/ and last; |
306 | /^undef$/ and last; |
307 | warn "unhandled preprocessor directive: $dir\n"; |
308 | } |
309 | } |
310 | else { |
311 | my @e = split /\s*\|\s*/, $line; |
312 | if( @e >= 3 ) { |
313 | my($flags, $ret, $name, @args) = @e; |
314 | for (@args) { |
315 | $_ = [trim_arg($_)]; |
316 | } |
317 | ($ret) = trim_arg($ret); |
318 | push @func, { |
319 | name => $name, |
320 | flags => { map { $_, 1 } $flags =~ /./g }, |
321 | ret => $ret, |
322 | args => \@args, |
323 | cond => ppcond(\@pps), |
324 | }; |
325 | } |
326 | } |
327 | } |
328 | |
329 | close FILE; |
330 | } |
331 | |
332 | return @func; |
333 | } |
334 | |
335 | sub make_prototype |
336 | { |
337 | my $f = shift; |
338 | my @args = map { "@$_" } @{$f->{args}}; |
339 | my $proto; |
340 | my $pTHX_ = exists $f->{flags}{n} ? "" : "pTHX_ "; |
341 | $proto = "$f->{ret} $f->{name}" . "($pTHX_" . join(', ', @args) . ')'; |
342 | return $proto; |
343 | } |
344 | |
345 | sub format_version |
346 | { |
347 | my $ver = shift; |
348 | |
349 | $ver =~ s/$/000000/; |
350 | my($r,$v,$s) = $ver =~ /(\d+)\.(\d{3})(\d{3})/; |
351 | |
352 | $v = int $v; |
353 | $s = int $s; |
354 | |
355 | if ($r < 5 || ($r == 5 && $v < 6)) { |
356 | if ($s % 10) { |
357 | die "invalid version '$ver'\n"; |
358 | } |
359 | $s /= 10; |
360 | |
361 | $ver = sprintf "%d.%03d", $r, $v; |
362 | $s > 0 and $ver .= sprintf "_%02d", $s; |
363 | |
364 | return $ver; |
365 | } |
366 | |
367 | return sprintf "%d.%d.%d", $r, $v, $s; |
368 | } |
369 | |
370 | sub parse_version |
371 | { |
372 | my $ver = shift; |
373 | |
374 | if ($ver =~ /^(\d+)\.(\d+)\.(\d+)$/) { |
375 | return ($1, $2, $3); |
376 | } |
377 | elsif ($ver !~ /^\d+\.[\d_]+$/) { |
378 | die "cannot parse version '$ver'\n"; |
379 | } |
380 | |
381 | $ver =~ s/_//g; |
382 | $ver =~ s/$/000000/; |
383 | |
384 | my($r,$v,$s) = $ver =~ /(\d+)\.(\d{3})(\d{3})/; |
385 | |
386 | $v = int $v; |
387 | $s = int $s; |
388 | |
389 | if ($r < 5 || ($r == 5 && $v < 6)) { |
390 | if ($s % 10) { |
391 | die "cannot parse version '$ver'\n"; |
392 | } |
393 | $s /= 10; |
394 | } |
395 | |
396 | return ($r, $v, $s); |
397 | } |
398 | |
399 | 1; |