Commit | Line | Data |
---|---|---|
4633a7c4 LW |
1 | #!/usr/local/bin/perl |
2 | ||
3 | use Config; | |
ee580363 | 4 | use File::Basename qw(basename dirname); |
8a5546a1 | 5 | use Cwd; |
4633a7c4 LW |
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 | # Wanted: $archlibexp | |
14 | ||
15 | # This forces PL files to create target in same directory as PL file. | |
16 | # This is so that make depend always knows where to find PL derivatives. | |
8a5546a1 | 17 | $origdir = cwd; |
44a8e56a | 18 | chdir dirname($0); |
19 | $file = basename($0, '.PL'); | |
774d564b | 20 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 LW |
21 | |
22 | open OUT,">$file" or die "Can't create $file: $!"; | |
23 | ||
24 | print "Extracting $file (with variable substitutions)\n"; | |
25 | ||
26 | # In this section, perl variables will be expanded during extraction. | |
27 | # You can use $Config{...} to use Configure variables. | |
28 | ||
29 | print OUT <<"!GROK!THIS!"; | |
5f05dabc | 30 | $Config{startperl} |
31 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
32 | if \$running_under_some_shell; | |
154e51a4 LW |
33 | !GROK!THIS! |
34 | ||
4633a7c4 LW |
35 | # In the following, perl variables are not expanded during extraction. |
36 | ||
37 | print OUT <<'!NO!SUBS!'; | |
154e51a4 | 38 | |
fc865b05 JH |
39 | use strict; |
40 | ||
2c2acf7e | 41 | use Config; |
b306bf39 | 42 | use File::Path qw(mkpath); |
50f6e060 KS |
43 | use Getopt::Std; |
44 | ||
80d6dabb SR |
45 | # Make sure read permissions for all are set: |
46 | if (defined umask && (umask() & 0444)) { | |
47 | umask (umask() & ~0444); | |
48 | } | |
49 | ||
917244ce AS |
50 | getopts('Dd:rlhaQe'); |
51 | use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q $opt_e); | |
1d3434b8 | 52 | die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a); |
fc865b05 | 53 | my @inc_dirs = inc_dirs() if $opt_a; |
2c2acf7e | 54 | |
b306bf39 RS |
55 | my $Exit = 0; |
56 | ||
50f6e060 | 57 | my $Dest_dir = $opt_d || $Config{installsitearch}; |
b306bf39 RS |
58 | die "Destination directory $Dest_dir doesn't exist or isn't a directory\n" |
59 | unless -d $Dest_dir; | |
154e51a4 | 60 | |
fc865b05 | 61 | my @isatype = split(' ',<<END); |
fe14fcc3 LW |
62 | char uchar u_char |
63 | short ushort u_short | |
64 | int uint u_int | |
65 | long ulong u_long | |
fb73857a | 66 | FILE key_t caddr_t |
fe14fcc3 LW |
67 | END |
68 | ||
fc865b05 | 69 | my %isatype; |
55204971 | 70 | @isatype{@isatype} = (1) x @isatype; |
fc865b05 JH |
71 | my $inif = 0; |
72 | my %Is_converted; | |
917244ce | 73 | my %bad_file = (); |
fe14fcc3 LW |
74 | |
75 | @ARGV = ('-') unless @ARGV; | |
154e51a4 | 76 | |
7f04632d GS |
77 | build_preamble_if_necessary(); |
78 | ||
917244ce AS |
79 | sub reindent($) { |
80 | my($text) = shift; | |
81 | $text =~ s/\n/\n /g; | |
82 | $text =~ s/ /\t/g; | |
83 | $text; | |
84 | } | |
85 | ||
fc865b05 | 86 | my ($t, $tab, %curargs, $new, $eval_index, $dir, $name, $args, $outfile); |
917244ce | 87 | my ($incl, $incl_type, $next); |
fc865b05 | 88 | while (defined (my $file = next_file())) { |
50f6e060 KS |
89 | if (-l $file and -d $file) { |
90 | link_if_possible($file) if ($opt_l); | |
91 | next; | |
92 | } | |
93 | ||
5f05dabc | 94 | # Recover from header files with unbalanced cpp directives |
95 | $t = ''; | |
96 | $tab = 0; | |
97 | ||
50f6e060 KS |
98 | # $eval_index goes into ``#line'' directives, to help locate syntax errors: |
99 | $eval_index = 1; | |
100 | ||
fe14fcc3 LW |
101 | if ($file eq '-') { |
102 | open(IN, "-"); | |
103 | open(OUT, ">-"); | |
ee580363 | 104 | } else { |
fe14fcc3 | 105 | ($outfile = $file) =~ s/\.h$/.ph/ || next; |
625ca0ef | 106 | print "$file -> $outfile\n" unless $opt_Q; |
fe14fcc3 LW |
107 | if ($file =~ m|^(.*)/|) { |
108 | $dir = $1; | |
b306bf39 | 109 | mkpath "$Dest_dir/$dir"; |
154e51a4 | 110 | } |
1d3434b8 GS |
111 | |
112 | if ($opt_a) { # automagic mode: locate header file in @inc_dirs | |
113 | foreach (@inc_dirs) { | |
114 | chdir $_; | |
115 | last if -f $file; | |
116 | } | |
117 | } | |
118 | ||
b306bf39 RS |
119 | open(IN,"$file") || (($Exit = 1),(warn "Can't open $file: $!\n"),next); |
120 | open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n"; | |
154e51a4 | 121 | } |
7f04632d | 122 | |
ccfcdfed JH |
123 | print OUT |
124 | "require '_h2ph_pre.ph';\n\n", | |
125 | "no warnings 'redefine';\n\n"; | |
dccff43d JH |
126 | |
127 | while (defined (local $_ = next_line($file))) { | |
1d2dff63 | 128 | if (s/^\s*\#\s*//) { |
154e51a4 LW |
129 | if (s/^define\s+(\w+)//) { |
130 | $name = $1; | |
131 | $new = ''; | |
132 | s/\s+$//; | |
1be505aa | 133 | s/\(\w+\s*\(\*\)\s*\(\w*\)\)\s*(-?\d+)/$1/; # (int (*)(foo_t))0 |
154e51a4 LW |
134 | if (s/^\(([\w,\s]*)\)//) { |
135 | $args = $1; | |
b306bf39 | 136 | my $proto = '() '; |
154e51a4 | 137 | if ($args ne '') { |
b306bf39 | 138 | $proto = ''; |
fc865b05 | 139 | foreach my $arg (split(/,\s*/,$args)) { |
55204971 | 140 | $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; |
154e51a4 LW |
141 | $curargs{$arg} = 1; |
142 | } | |
143 | $args =~ s/\b(\w)/\$$1/g; | |
144 | $args = "local($args) = \@_;\n$t "; | |
145 | } | |
146 | s/^\s+//; | |
5f05dabc | 147 | expr(); |
ee580363 GS |
148 | $new =~ s/(["\\])/\\$1/g; #"]); |
149 | $new = reindent($new); | |
150 | $args = reindent($args); | |
154e51a4 | 151 | if ($t ne '') { |
ee580363 | 152 | $new =~ s/(['\\])/\\$1/g; #']); |
50f6e060 KS |
153 | if ($opt_h) { |
154 | print OUT $t, | |
ee580363 | 155 | "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; |
50f6e060 KS |
156 | $eval_index++; |
157 | } else { | |
158 | print OUT $t, | |
ee580363 | 159 | "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; |
50f6e060 | 160 | } |
ee580363 GS |
161 | } else { |
162 | print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n"; | |
154e51a4 LW |
163 | } |
164 | %curargs = (); | |
ee580363 | 165 | } else { |
154e51a4 | 166 | s/^\s+//; |
5f05dabc | 167 | expr(); |
154e51a4 | 168 | $new = 1 if $new eq ''; |
ee580363 GS |
169 | $new = reindent($new); |
170 | $args = reindent($args); | |
154e51a4 | 171 | if ($t ne '') { |
ee580363 | 172 | $new =~ s/(['\\])/\\$1/g; #']); |
7f04632d | 173 | |
50f6e060 KS |
174 | if ($opt_h) { |
175 | print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n"; | |
176 | $eval_index++; | |
177 | } else { | |
178 | print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n"; | |
179 | } | |
ee580363 | 180 | } else { |
7f04632d GS |
181 | # Shunt around such directives as `#define FOO FOO': |
182 | next if " \&$name" eq $new; | |
183 | ||
ee580363 | 184 | print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n"; |
154e51a4 LW |
185 | } |
186 | } | |
917244ce AS |
187 | } elsif (/^(include|import|include_next)\s*[<\"](.*)[>\"]/) { |
188 | $incl_type = $1; | |
189 | $incl = $2; | |
190 | if (($incl_type eq 'include_next') || | |
191 | ($opt_e && exists($bad_file{$incl}))) { | |
192 | $incl =~ s/\.h$/.ph/; | |
ee580363 | 193 | print OUT ($t, |
1d2dff63 GS |
194 | "eval {\n"); |
195 | $tab += 4; | |
196 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
917244ce AS |
197 | print OUT ($t, "my(\@REM);\n"); |
198 | if ($incl_type eq 'include_next') { | |
1d2dff63 GS |
199 | print OUT ($t, |
200 | "my(\%INCD) = map { \$INC{\$_} => 1 } ", | |
917244ce AS |
201 | "(grep { \$_ eq \"$incl\" } ", |
202 | "keys(\%INC));\n"); | |
1d2dff63 | 203 | print OUT ($t, |
917244ce | 204 | "\@REM = map { \"\$_/$incl\" } ", |
1d2dff63 | 205 | "(grep { not exists(\$INCD{\"\$_/$incl\"})", |
917244ce AS |
206 | " and -f \"\$_/$incl\" } \@INC);\n"); |
207 | } else { | |
208 | print OUT ($t, | |
209 | "\@REM = map { \"\$_/$incl\" } ", | |
210 | "(grep {-r \"\$_/$incl\" } \@INC);\n"); | |
211 | } | |
1d2dff63 GS |
212 | print OUT ($t, |
213 | "require \"\$REM[0]\" if \@REM;\n"); | |
214 | $tab -= 4; | |
215 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
216 | print OUT ($t, | |
217 | "};\n"); | |
218 | print OUT ($t, | |
219 | "warn(\$\@) if \$\@;\n"); | |
917244ce AS |
220 | } else { |
221 | $incl =~ s/\.h$/.ph/; | |
222 | print OUT $t,"require '$incl';\n"; | |
223 | } | |
ee580363 GS |
224 | } elsif (/^ifdef\s+(\w+)/) { |
225 | print OUT $t,"if(defined(&$1)) {\n"; | |
154e51a4 LW |
226 | $tab += 4; |
227 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 GS |
228 | } elsif (/^ifndef\s+(\w+)/) { |
229 | print OUT $t,"unless(defined(&$1)) {\n"; | |
230 | $tab += 4; | |
231 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
232 | } elsif (s/^if\s+//) { | |
154e51a4 | 233 | $new = ''; |
748a9306 | 234 | $inif = 1; |
5f05dabc | 235 | expr(); |
748a9306 | 236 | $inif = 0; |
ee580363 | 237 | print OUT $t,"if($new) {\n"; |
154e51a4 LW |
238 | $tab += 4; |
239 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 240 | } elsif (s/^elif\s+//) { |
154e51a4 | 241 | $new = ''; |
748a9306 | 242 | $inif = 1; |
5f05dabc | 243 | expr(); |
748a9306 | 244 | $inif = 0; |
154e51a4 LW |
245 | $tab -= 4; |
246 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 247 | print OUT $t,"}\n elsif($new) {\n"; |
154e51a4 LW |
248 | $tab += 4; |
249 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 250 | } elsif (/^else/) { |
154e51a4 LW |
251 | $tab -= 4; |
252 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 253 | print OUT $t,"} else {\n"; |
154e51a4 LW |
254 | $tab += 4; |
255 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 256 | } elsif (/^endif/) { |
154e51a4 LW |
257 | $tab -= 4; |
258 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
259 | print OUT $t,"}\n"; | |
ee580363 GS |
260 | } elsif(/^undef\s+(\w+)/) { |
261 | print OUT $t, "undef(&$1) if defined(&$1);\n"; | |
d3e00f1c KS |
262 | } elsif(/^error\s+(".*")/) { |
263 | print OUT $t, "die($1);\n"; | |
ee580363 | 264 | } elsif(/^error\s+(.*)/) { |
5d42aa7b | 265 | print OUT $t, "die(\"", quotemeta($1), "\");\n"; |
ee580363 | 266 | } elsif(/^warning\s+(.*)/) { |
5d42aa7b | 267 | print OUT $t, "warn(\"", quotemeta($1), "\");\n"; |
ee580363 GS |
268 | } elsif(/^ident\s+(.*)/) { |
269 | print OUT $t, "# $1\n"; | |
154e51a4 | 270 | } |
e7cba2ba JH |
271 | } elsif(/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { |
272 | until(/\{[^}]*\}.*;/ || /;/) { | |
dccff43d | 273 | last unless defined ($next = next_line($file)); |
e7cba2ba JH |
274 | chomp $next; |
275 | # drop "#define FOO FOO" in enums | |
276 | $next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//; | |
1d2dff63 GS |
277 | $_ .= $next; |
278 | print OUT "# $next\n" if $opt_D; | |
279 | } | |
e7cba2ba | 280 | s/#\s*if.*?#\s*endif//g; # drop #ifdefs |
1d2dff63 GS |
281 | s@/\*.*?\*/@@g; |
282 | s/\s+/ /g; | |
e7cba2ba | 283 | next unless /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/; |
fc865b05 JH |
284 | (my $enum_subs = $3) =~ s/\s//g; |
285 | my @enum_subs = split(/,/, $enum_subs); | |
286 | my $enum_val = -1; | |
287 | foreach my $enum (@enum_subs) { | |
288 | my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/; | |
1d2dff63 GS |
289 | $enum_value =~ s/^=//; |
290 | $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1); | |
291 | if ($opt_h) { | |
292 | print OUT ($t, | |
293 | "eval(\"\\n#line $eval_index $outfile\\n", | |
294 | "sub $enum_name () \{ $enum_val; \}\") ", | |
295 | "unless defined(\&$enum_name);\n"); | |
296 | ++ $eval_index; | |
297 | } else { | |
298 | print OUT ($t, | |
299 | "eval(\"sub $enum_name () \{ $enum_val; \}\") ", | |
300 | "unless defined(\&$enum_name);\n"); | |
301 | } | |
302 | } | |
154e51a4 LW |
303 | } |
304 | } | |
fc865b05 | 305 | $Is_converted{$file} = 1; |
917244ce AS |
306 | if ($opt_e && exists($bad_file{$file})) { |
307 | unlink($Dest_dir . '/' . $outfile); | |
308 | $next = ''; | |
309 | } else { | |
310 | print OUT "1;\n"; | |
1d3434b8 | 311 | queue_includes_from($file) if ($opt_a); |
917244ce | 312 | } |
154e51a4 LW |
313 | } |
314 | ||
917244ce AS |
315 | if ($opt_e && (scalar(keys %bad_file) > 0)) { |
316 | warn "Was unable to convert the following files:\n"; | |
317 | warn "\t" . join("\n\t",sort(keys %bad_file)) . "\n"; | |
ee580363 GS |
318 | } |
319 | ||
917244ce | 320 | exit $Exit; |
fc865b05 | 321 | |
154e51a4 | 322 | sub expr { |
fc865b05 | 323 | my $joined_args; |
ee580363 | 324 | if(keys(%curargs)) { |
fc865b05 | 325 | $joined_args = join('|', keys(%curargs)); |
ee580363 | 326 | } |
154e51a4 | 327 | while ($_ ne '') { |
ee580363 GS |
328 | s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator |
329 | s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of | |
154e51a4 | 330 | s/^(\s+)// && do {$new .= ' '; next;}; |
25146a1a JH |
331 | s/^0X([0-9A-F]+)[UL]*//i |
332 | && do {my $hex = $1; | |
333 | $hex =~ s/^0+//; | |
334 | if (length $hex > 8 && !$Config{use64bitint}) { | |
335 | # Croak if nv_preserves_uv_bits < 64 ? | |
336 | $new .= hex(substr($hex, -8)) + | |
337 | 2**32 * hex(substr($hex, 0, -8)); | |
338 | # The above will produce "errorneus" code | |
339 | # if the hex constant was e.g. inside UINT64_C | |
340 | # macro, but then again, h2ph is an approximation. | |
341 | } else { | |
342 | $new .= lc("0x$hex"); | |
343 | } | |
344 | next;}; | |
fd3f0aff | 345 | s/^(-?\d+\.\d+E[-+]?\d+)[FL]?//i && do {$new .= $1; next;}; |
50f6e060 | 346 | s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;}; |
154e51a4 LW |
347 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
348 | s/^'((\\"|[^"])*)'// && do { | |
349 | if ($curargs{$1}) { | |
350 | $new .= "ord('\$$1')"; | |
ee580363 | 351 | } else { |
154e51a4 LW |
352 | $new .= "ord('$1')"; |
353 | } | |
354 | next; | |
355 | }; | |
5f05dabc | 356 | # replace "sizeof(foo)" with "{foo}" |
357 | # also, remove * (C dereference operator) to avoid perl syntax | |
358 | # problems. Where the %sizeof array comes from is anyone's | |
359 | # guess (c2ph?), but this at least avoids fatal syntax errors. | |
360 | # Behavior is undefined if sizeof() delimiters are unbalanced. | |
361 | # This code was modified to able to handle constructs like this: | |
362 | # sizeof(*(p)), which appear in the HP-UX 10.01 header files. | |
363 | s/^sizeof\s*\(// && do { | |
364 | $new .= '$sizeof'; | |
365 | my $lvl = 1; # already saw one open paren | |
366 | # tack { on the front, and skip it in the loop | |
367 | $_ = "{" . "$_"; | |
368 | my $index = 1; | |
369 | # find balanced closing paren | |
370 | while ($index <= length($_) && $lvl > 0) { | |
371 | $lvl++ if substr($_, $index, 1) eq "("; | |
372 | $lvl-- if substr($_, $index, 1) eq ")"; | |
373 | $index++; | |
374 | } | |
375 | # tack } on the end, replacing ) | |
376 | substr($_, $index - 1, 1) = "}"; | |
377 | # remove pesky * operators within the sizeof argument | |
378 | substr($_, 0, $index - 1) =~ s/\*//g; | |
379 | next; | |
380 | }; | |
50f6e060 KS |
381 | # Eliminate typedefs |
382 | /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do { | |
383 | foreach (split /\s+/, $1) { # Make sure all the words are types, | |
99ed927b | 384 | last unless ($isatype{$_} or $_ eq 'struct' or $_ eq 'union'); |
50f6e060 KS |
385 | } |
386 | s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them. | |
387 | }; | |
ee580363 GS |
388 | # struct/union member, including arrays: |
389 | s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do { | |
fc865b05 | 390 | my $id = $1; |
ee580363 GS |
391 | $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g; |
392 | $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args); | |
393 | while($id =~ /\[\s*([^\$\&\d\]]+)\]/) { | |
394 | my($index) = $1; | |
395 | $index =~ s/\s//g; | |
396 | if(exists($curargs{$index})) { | |
397 | $index = "\$$index"; | |
398 | } else { | |
399 | $index = "&$index"; | |
400 | } | |
401 | $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/; | |
402 | } | |
403 | $new .= " (\$$id)"; | |
50f6e060 | 404 | }; |
154e51a4 | 405 | s/^([_a-zA-Z]\w*)// && do { |
fc865b05 | 406 | my $id = $1; |
99ed927b | 407 | if ($id eq 'struct' || $id eq 'union') { |
fe14fcc3 LW |
408 | s/^\s+(\w+)//; |
409 | $id .= ' ' . $1; | |
410 | $isatype{$id} = 1; | |
ee580363 | 411 | } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) { |
50f6e060 | 412 | while (s/^\s+(\w+)//) { $id .= ' ' . $1; } |
fe14fcc3 LW |
413 | $isatype{$id} = 1; |
414 | } | |
154e51a4 | 415 | if ($curargs{$id}) { |
ee580363 GS |
416 | $new .= "\$$id"; |
417 | $new .= '->' if /^[\[\{]/; | |
418 | } elsif ($id eq 'defined') { | |
154e51a4 | 419 | $new .= 'defined'; |
cd4e1efa MS |
420 | } elsif (/^\s*\(/) { |
421 | s/^\s*\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat | |
154e51a4 | 422 | $new .= " &$id"; |
ee580363 | 423 | } elsif ($isatype{$id}) { |
fe14fcc3 LW |
424 | if ($new =~ /{\s*$/) { |
425 | $new .= "'$id'"; | |
ee580363 | 426 | } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { |
fe14fcc3 LW |
427 | $new =~ s/\(\s*$//; |
428 | s/^[\s*]*\)//; | |
ee580363 | 429 | } else { |
b276c83d | 430 | $new .= q(').$id.q('); |
fe14fcc3 | 431 | } |
ee580363 | 432 | } else { |
c07a80fd | 433 | if ($inif && $new !~ /defined\s*\($/) { |
748a9306 | 434 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)'; |
ee580363 GS |
435 | } elsif (/^\[/) { |
436 | $new .= " \$$id"; | |
437 | } else { | |
748a9306 LW |
438 | $new .= ' &' . $id; |
439 | } | |
154e51a4 LW |
440 | } |
441 | next; | |
442 | }; | |
fb21d8eb | 443 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; |
154e51a4 LW |
444 | } |
445 | } | |
50f6e060 KS |
446 | |
447 | ||
79c1b905 KS |
448 | sub next_line |
449 | { | |
dccff43d | 450 | my $file = shift; |
79c1b905 | 451 | my ($in, $out); |
b7bcf494 | 452 | my $pre_sub_tri_graphs = 1; |
79c1b905 KS |
453 | |
454 | READ: while (not eof IN) { | |
455 | $in .= <IN>; | |
456 | chomp $in; | |
457 | next unless length $in; | |
458 | ||
459 | while (length $in) { | |
b7bcf494 PP |
460 | if ($pre_sub_tri_graphs) { |
461 | # Preprocess all tri-graphs | |
462 | # including things stuck in quoted string constants. | |
463 | $in =~ s/\?\?=/#/g; # | ??=| #| | |
464 | $in =~ s/\?\?\!/|/g; # | ??!| || | |
465 | $in =~ s/\?\?'/^/g; # | ??'| ^| | |
466 | $in =~ s/\?\?\(/[/g; # | ??(| [| | |
467 | $in =~ s/\?\?\)/]/g; # | ??)| ]| | |
468 | $in =~ s/\?\?\-/~/g; # | ??-| ~| | |
469 | $in =~ s/\?\?\//\\/g; # | ??/| \| | |
470 | $in =~ s/\?\?</{/g; # | ??<| {| | |
471 | $in =~ s/\?\?>/}/g; # | ??>| }| | |
472 | } | |
9efe82d3 JH |
473 | if ($in =~ /^\#ifdef __LANGUAGE_PASCAL__/) { |
474 | # Tru64 disassembler.h evilness: mixed C and Pascal. | |
475 | while (<IN>) { | |
476 | last if /^\#endif/; | |
477 | } | |
478 | next READ; | |
479 | } | |
37723803 | 480 | if ($in =~ /^extern inline / && # Inlined assembler. |
dccff43d JH |
481 | $^O eq 'linux' && $file =~ m!(?:^|/)asm/[^/]+\.h$!) { |
482 | while (<IN>) { | |
483 | last if /^}/; | |
484 | } | |
485 | next READ; | |
486 | } | |
79c1b905 KS |
487 | if ($in =~ s/\\$//) { # \-newline |
488 | $out .= ' '; | |
489 | next READ; | |
490 | } elsif ($in =~ s/^([^"'\\\/]+)//) { # Passthrough | |
491 | $out .= $1; | |
492 | } elsif ($in =~ s/^(\\.)//) { # \... | |
493 | $out .= $1; | |
ab5fe4d6 KS |
494 | } elsif ($in =~ /^'/) { # '... |
495 | if ($in =~ s/^('(\\.|[^'\\])*')//) { | |
496 | $out .= $1; | |
497 | } else { | |
498 | next READ; | |
499 | } | |
500 | } elsif ($in =~ /^"/) { # "... | |
501 | if ($in =~ s/^("(\\.|[^"\\])*")//) { | |
502 | $out .= $1; | |
503 | } else { | |
504 | next READ; | |
505 | } | |
79c1b905 | 506 | } elsif ($in =~ s/^\/\/.*//) { # //... |
edf6e4ec | 507 | # fall through |
79c1b905 KS |
508 | } elsif ($in =~ m/^\/\*/) { # /*... |
509 | # C comment removal adapted from perlfaq6: | |
510 | if ($in =~ s/^\/\*[^*]*\*+([^\/*][^*]*\*+)*\///) { | |
511 | $out .= ' '; | |
512 | } else { # Incomplete /* */ | |
513 | next READ; | |
514 | } | |
515 | } elsif ($in =~ s/^(\/)//) { # /... | |
516 | $out .= $1; | |
517 | } elsif ($in =~ s/^([^\'\"\\\/]+)//) { | |
518 | $out .= $1; | |
889e303a JH |
519 | } elsif ($^O eq 'linux' && |
520 | $file =~ m!(?:^|/)linux/byteorder/pdp_endian\.h$! && | |
521 | $in =~ s!\'T KNOW!!) { | |
522 | $out =~ s!I DON$!I_DO_NOT_KNOW!; | |
79c1b905 | 523 | } else { |
917244ce AS |
524 | if ($opt_e) { |
525 | warn "Cannot parse $file:\n$in\n"; | |
526 | $bad_file{$file} = 1; | |
527 | $in = ''; | |
528 | $out = undef; | |
529 | last READ; | |
530 | } else { | |
dccff43d | 531 | die "Cannot parse:\n$in\n"; |
917244ce | 532 | } |
79c1b905 KS |
533 | } |
534 | } | |
535 | ||
edf6e4ec | 536 | last READ if $out =~ /\S/; |
79c1b905 KS |
537 | } |
538 | ||
539 | return $out; | |
540 | } | |
541 | ||
542 | ||
50f6e060 KS |
543 | # Handle recursive subdirectories without getting a grotesquely big stack. |
544 | # Could this be implemented using File::Find? | |
545 | sub next_file | |
546 | { | |
547 | my $file; | |
548 | ||
549 | while (@ARGV) { | |
550 | $file = shift @ARGV; | |
551 | ||
552 | if ($file eq '-' or -f $file or -l $file) { | |
553 | return $file; | |
554 | } elsif (-d $file) { | |
555 | if ($opt_r) { | |
556 | expand_glob($file); | |
557 | } else { | |
558 | print STDERR "Skipping directory `$file'\n"; | |
559 | } | |
1d3434b8 GS |
560 | } elsif ($opt_a) { |
561 | return $file; | |
562 | } else { | |
50f6e060 KS |
563 | print STDERR "Skipping `$file': not a file or directory\n"; |
564 | } | |
565 | } | |
566 | ||
567 | return undef; | |
568 | } | |
569 | ||
570 | ||
571 | # Put all the files in $directory into @ARGV for processing. | |
572 | sub expand_glob | |
573 | { | |
574 | my ($directory) = @_; | |
575 | ||
576 | $directory =~ s:/$::; | |
577 | ||
578 | opendir DIR, $directory; | |
579 | foreach (readdir DIR) { | |
580 | next if ($_ eq '.' or $_ eq '..'); | |
581 | ||
582 | # expand_glob() is going to be called until $ARGV[0] isn't a | |
583 | # directory; so push directories, and unshift everything else. | |
1d3434b8 GS |
584 | if (-d "$directory/$_") { push @ARGV, "$directory/$_" } |
585 | else { unshift @ARGV, "$directory/$_" } | |
50f6e060 KS |
586 | } |
587 | closedir DIR; | |
588 | } | |
589 | ||
590 | ||
591 | # Given $file, a symbolic link to a directory in the C include directory, | |
592 | # make an equivalent symbolic link in $Dest_dir, if we can figure out how. | |
593 | # Otherwise, just duplicate the file or directory. | |
594 | sub link_if_possible | |
595 | { | |
596 | my ($dirlink) = @_; | |
597 | my $target = eval 'readlink($dirlink)'; | |
598 | ||
599 | if ($target =~ m:^\.\./: or $target =~ m:^/:) { | |
600 | # The target of a parent or absolute link could leave the $Dest_dir | |
601 | # hierarchy, so let's put all of the contents of $dirlink (actually, | |
602 | # the contents of $target) into @ARGV; as a side effect down the | |
603 | # line, $dirlink will get created as an _actual_ directory. | |
604 | expand_glob($dirlink); | |
605 | } else { | |
606 | if (-l "$Dest_dir/$dirlink") { | |
607 | unlink "$Dest_dir/$dirlink" or | |
608 | print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n"; | |
609 | } | |
1d3434b8 | 610 | |
50f6e060 KS |
611 | if (eval 'symlink($target, "$Dest_dir/$dirlink")') { |
612 | print "Linking $target -> $Dest_dir/$dirlink\n"; | |
613 | ||
614 | # Make sure that the link _links_ to something: | |
615 | if (! -e "$Dest_dir/$target") { | |
1d3434b8 | 616 | mkpath("$Dest_dir/$target", 0755) or |
50f6e060 KS |
617 | print STDERR "Could not create $Dest_dir/$target/\n"; |
618 | } | |
619 | } else { | |
620 | print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n"; | |
621 | } | |
622 | } | |
623 | } | |
624 | ||
625 | ||
1d3434b8 GS |
626 | # Push all #included files in $file onto our stack, except for STDIN |
627 | # and files we've already processed. | |
628 | sub queue_includes_from | |
629 | { | |
630 | my ($file) = @_; | |
631 | my $line; | |
632 | ||
633 | return if ($file eq "-"); | |
634 | ||
635 | open HEADER, $file or return; | |
636 | while (defined($line = <HEADER>)) { | |
637 | while (/\\$/) { # Handle continuation lines | |
638 | chop $line; | |
639 | $line .= <HEADER>; | |
640 | } | |
641 | ||
642 | if ($line =~ /^#\s*include\s+<(.*?)>/) { | |
fc865b05 | 643 | push(@ARGV, $1) unless $Is_converted{$1}; |
1d3434b8 GS |
644 | } |
645 | } | |
646 | close HEADER; | |
647 | } | |
648 | ||
649 | ||
650 | # Determine include directories; $Config{usrinc} should be enough for (all | |
651 | # non-GCC?) C compilers, but gcc uses an additional include directory. | |
652 | sub inc_dirs | |
653 | { | |
654 | my $from_gcc = `$Config{cc} -v 2>&1`; | |
655 | $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s; | |
656 | ||
657 | length($from_gcc) ? ($from_gcc, $Config{usrinc}) : ($Config{usrinc}); | |
658 | } | |
659 | ||
660 | ||
7f04632d GS |
661 | # Create "_h2ph_pre.ph", if it doesn't exist or was built by a different |
662 | # version of h2ph. | |
663 | sub build_preamble_if_necessary | |
664 | { | |
665 | # Increment $VERSION every time this function is modified: | |
00f0ad8c | 666 | my $VERSION = 2; |
7f04632d GS |
667 | my $preamble = "$Dest_dir/_h2ph_pre.ph"; |
668 | ||
669 | # Can we skip building the preamble file? | |
670 | if (-r $preamble) { | |
671 | # Extract version number from first line of preamble: | |
672 | open PREAMBLE, $preamble or die "Cannot open $preamble: $!"; | |
673 | my $line = <PREAMBLE>; | |
674 | $line =~ /(\b\d+\b)/; | |
675 | close PREAMBLE or die "Cannot close $preamble: $!"; | |
676 | ||
677 | # Don't build preamble if a compatible preamble exists: | |
678 | return if $1 == $VERSION; | |
679 | } | |
680 | ||
681 | my (%define) = _extract_cc_defines(); | |
682 | ||
683 | open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!"; | |
684 | print PREAMBLE "# This file was created by h2ph version $VERSION\n"; | |
685 | ||
686 | foreach (sort keys %define) { | |
687 | if ($opt_D) { | |
688 | print PREAMBLE "# $_=$define{$_}\n"; | |
689 | } | |
690 | ||
4322f456 | 691 | if ($define{$_} =~ /^(\d+)U?L{0,2}$/i) { |
7f04632d | 692 | print PREAMBLE |
4322f456 | 693 | "unless (defined &$_) { sub $_() { $1 } }\n\n"; |
00f0ad8c KS |
694 | } elsif ($define{$_} =~ /^\w+$/) { |
695 | print PREAMBLE | |
696 | "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n"; | |
7f04632d GS |
697 | } else { |
698 | print PREAMBLE | |
699 | "unless (defined &$_) { sub $_() { \"", | |
700 | quotemeta($define{$_}), "\" } }\n\n"; | |
701 | } | |
702 | } | |
703 | close PREAMBLE or die "Cannot close $preamble: $!"; | |
704 | } | |
705 | ||
706 | ||
707 | # %Config contains information on macros that are pre-defined by the | |
708 | # system's compiler. We need this information to make the .ph files | |
709 | # function with perl as the .h files do with cc. | |
710 | sub _extract_cc_defines | |
711 | { | |
712 | my %define; | |
fc865b05 JH |
713 | my $allsymbols = join " ", |
714 | @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'}; | |
7f04632d GS |
715 | |
716 | # Split compiler pre-definitions into `key=value' pairs: | |
717 | foreach (split /\s+/, $allsymbols) { | |
00f0ad8c | 718 | /(.+?)=(.+)/ and $define{$1} = $2; |
7f04632d GS |
719 | |
720 | if ($opt_D) { | |
721 | print STDERR "$_: $1 -> $2\n"; | |
722 | } | |
723 | } | |
724 | ||
725 | return %define; | |
726 | } | |
727 | ||
728 | ||
50f6e060 KS |
729 | 1; |
730 | ||
154e51a4 | 731 | ############################################################################## |
1fef88e7 JM |
732 | __END__ |
733 | ||
734 | =head1 NAME | |
735 | ||
736 | h2ph - convert .h C header files to .ph Perl header files | |
737 | ||
738 | =head1 SYNOPSIS | |
739 | ||
1d3434b8 | 740 | B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]> |
1fef88e7 JM |
741 | |
742 | =head1 DESCRIPTION | |
154e51a4 | 743 | |
1fef88e7 | 744 | I<h2ph> |
154e51a4 LW |
745 | converts any C header files specified to the corresponding Perl header file |
746 | format. | |
747 | It is most easily run while in /usr/include: | |
154e51a4 LW |
748 | |
749 | cd /usr/include; h2ph * sys/* | |
750 | ||
50f6e060 KS |
751 | or |
752 | ||
ef0ae776 JH |
753 | cd /usr/include; h2ph * sys/* arpa/* netinet/* |
754 | ||
755 | or | |
756 | ||
50f6e060 KS |
757 | cd /usr/include; h2ph -r -l . |
758 | ||
b306bf39 RS |
759 | The output files are placed in the hierarchy rooted at Perl's |
760 | architecture dependent library directory. You can specify a different | |
761 | hierarchy with a B<-d> switch. | |
762 | ||
fe14fcc3 | 763 | If run with no arguments, filters standard input to standard output. |
1fef88e7 | 764 | |
50f6e060 KS |
765 | =head1 OPTIONS |
766 | ||
767 | =over 4 | |
768 | ||
769 | =item -d destination_dir | |
770 | ||
771 | Put the resulting B<.ph> files beneath B<destination_dir>, instead of | |
772 | beneath the default Perl library location (C<$Config{'installsitsearch'}>). | |
773 | ||
774 | =item -r | |
775 | ||
776 | Run recursively; if any of B<headerfiles> are directories, then run I<h2ph> | |
1d3434b8 GS |
777 | on all files in those directories (and their subdirectories, etc.). B<-r> |
778 | and B<-a> are mutually exclusive. | |
779 | ||
780 | =item -a | |
781 | ||
782 | Run automagically; convert B<headerfiles>, as well as any B<.h> files | |
783 | which they include. This option will search for B<.h> files in all | |
784 | directories which your C compiler ordinarily uses. B<-a> and B<-r> are | |
785 | mutually exclusive. | |
50f6e060 KS |
786 | |
787 | =item -l | |
788 | ||
789 | Symbolic links will be replicated in the destination directory. If B<-l> | |
790 | is not specified, then links are skipped over. | |
791 | ||
792 | =item -h | |
793 | ||
794 | Put ``hints'' in the .ph files which will help in locating problems with | |
795 | I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax | |
796 | errors, instead of the cryptic | |
797 | ||
798 | [ some error condition ] at (eval mmm) line nnn | |
799 | ||
800 | you will see the slightly more helpful | |
801 | ||
802 | [ some error condition ] at filename.ph line nnn | |
803 | ||
804 | However, the B<.ph> files almost double in size when built using B<-h>. | |
805 | ||
1d3434b8 GS |
806 | =item -D |
807 | ||
808 | Include the code from the B<.h> file as a comment in the B<.ph> file. | |
809 | This is primarily used for debugging I<h2ph>. | |
810 | ||
7f04632d GS |
811 | =item -Q |
812 | ||
813 | ``Quiet'' mode; don't print out the names of the files being converted. | |
814 | ||
50f6e060 KS |
815 | =back |
816 | ||
1fef88e7 JM |
817 | =head1 ENVIRONMENT |
818 | ||
154e51a4 | 819 | No environment variables are used. |
1fef88e7 JM |
820 | |
821 | =head1 FILES | |
822 | ||
823 | /usr/include/*.h | |
824 | /usr/include/sys/*.h | |
825 | ||
154e51a4 | 826 | etc. |
1fef88e7 JM |
827 | |
828 | =head1 AUTHOR | |
829 | ||
154e51a4 | 830 | Larry Wall |
1fef88e7 JM |
831 | |
832 | =head1 SEE ALSO | |
833 | ||
154e51a4 | 834 | perl(1) |
1fef88e7 JM |
835 | |
836 | =head1 DIAGNOSTICS | |
837 | ||
154e51a4 | 838 | The usual warnings if it can't read or write the files involved. |
1fef88e7 JM |
839 | |
840 | =head1 BUGS | |
841 | ||
154e51a4 | 842 | Doesn't construct the %sizeof array for you. |
1fef88e7 | 843 | |
154e51a4 LW |
844 | It doesn't handle all C constructs, but it does attempt to isolate |
845 | definitions inside evals so that you can get at the definitions | |
846 | that it can translate. | |
1fef88e7 | 847 | |
154e51a4 LW |
848 | It's only intended as a rough tool. |
849 | You may need to dicker with the files produced. | |
1fef88e7 | 850 | |
7f04632d GS |
851 | You have to run this program by hand; it's not run as part of the Perl |
852 | installation. | |
853 | ||
854 | Doesn't handle complicated expressions built piecemeal, a la: | |
855 | ||
856 | enum { | |
857 | FIRST_VALUE, | |
858 | SECOND_VALUE, | |
859 | #ifdef ABC | |
860 | THIRD_VALUE | |
861 | #endif | |
862 | }; | |
863 | ||
864 | Doesn't necessarily locate all of your C compiler's internally-defined | |
865 | symbols. | |
866 | ||
1fef88e7 JM |
867 | =cut |
868 | ||
154e51a4 | 869 | !NO!SUBS! |
4633a7c4 LW |
870 | |
871 | close OUT or die "Can't close $file: $!"; | |
872 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
873 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
8a5546a1 | 874 | chdir $origdir; |