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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 | # Wanted: $archlibexp |
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. |
16 | chdir(dirname($0)); |
17 | ($file = basename($0)) =~ s/\.PL$//; |
18 | $file =~ s/\.pl$// |
f360dba1 |
19 | if ($^O eq 'VMS' or $^O eq 'os2'); # "case-forgiving" |
4633a7c4 |
20 | |
21 | open OUT,">$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!"; |
29 | $Config{'startperl'} |
30 | eval 'exec perl -S \$0 "\$@"' |
31 | if 0; |
32 | |
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33 | !GROK!THIS! |
34 | |
4633a7c4 |
35 | # In the following, perl variables are not expanded during extraction. |
36 | |
37 | print OUT <<'!NO!SUBS!'; |
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38 | |
2c2acf7e |
39 | use Config; |
40 | $perlincl = @Config{installsitearch}; |
41 | |
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42 | chdir '/usr/include' || die "Can't cd /usr/include"; |
43 | |
fe14fcc3 |
44 | @isatype = split(' ',<<END); |
45 | char uchar u_char |
46 | short ushort u_short |
47 | int uint u_int |
48 | long ulong u_long |
49 | FILE |
50 | END |
51 | |
55204971 |
52 | @isatype{@isatype} = (1) x @isatype; |
748a9306 |
53 | $inif = 0; |
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54 | |
55 | @ARGV = ('-') unless @ARGV; |
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56 | |
57 | foreach $file (@ARGV) { |
fe14fcc3 |
58 | if ($file eq '-') { |
59 | open(IN, "-"); |
60 | open(OUT, ">-"); |
61 | } |
62 | else { |
63 | ($outfile = $file) =~ s/\.h$/.ph/ || next; |
64 | print "$file -> $outfile\n"; |
65 | if ($file =~ m|^(.*)/|) { |
66 | $dir = $1; |
67 | if (!-d "$perlincl/$dir") { |
68 | mkdir("$perlincl/$dir",0777); |
69 | } |
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70 | } |
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71 | open(IN,"$file") || ((warn "Can't open $file: $!\n"),next); |
72 | open(OUT,">$perlincl/$outfile") || die "Can't create $outfile: $!\n"; |
154e51a4 |
73 | } |
154e51a4 |
74 | while (<IN>) { |
75 | chop; |
76 | while (/\\$/) { |
77 | chop; |
78 | $_ .= <IN>; |
79 | chop; |
80 | } |
81 | if (s:/\*:\200:g) { |
82 | s:\*/:\201:g; |
83 | s/\200[^\201]*\201//g; # delete single line comments |
84 | if (s/\200.*//) { # begin multi-line comment? |
85 | $_ .= '/*'; |
86 | $_ .= <IN>; |
87 | redo; |
88 | } |
89 | } |
90 | if (s/^#\s*//) { |
91 | if (s/^define\s+(\w+)//) { |
92 | $name = $1; |
93 | $new = ''; |
94 | s/\s+$//; |
95 | if (s/^\(([\w,\s]*)\)//) { |
96 | $args = $1; |
97 | if ($args ne '') { |
98 | foreach $arg (split(/,\s*/,$args)) { |
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99 | $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; |
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100 | $curargs{$arg} = 1; |
101 | } |
102 | $args =~ s/\b(\w)/\$$1/g; |
103 | $args = "local($args) = \@_;\n$t "; |
104 | } |
105 | s/^\s+//; |
106 | do expr(); |
107 | $new =~ s/(["\\])/\\$1/g; |
108 | if ($t ne '') { |
109 | $new =~ s/(['\\])/\\$1/g; |
110 | print OUT $t, |
111 | "eval 'sub $name {\n$t ${args}eval \"$new\";\n$t}';\n"; |
112 | } |
113 | else { |
114 | print OUT "sub $name {\n ${args}eval \"$new\";\n}\n"; |
115 | } |
116 | %curargs = (); |
117 | } |
118 | else { |
119 | s/^\s+//; |
120 | do expr(); |
121 | $new = 1 if $new eq ''; |
122 | if ($t ne '') { |
123 | $new =~ s/(['\\])/\\$1/g; |
124 | print OUT $t,"eval 'sub $name {",$new,";}';\n"; |
125 | } |
126 | else { |
127 | print OUT $t,"sub $name {",$new,";}\n"; |
128 | } |
129 | } |
130 | } |
fb21d8eb |
131 | elsif (/^include\s*<(.*)>/) { |
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132 | ($incl = $1) =~ s/\.h$/.ph/; |
133 | print OUT $t,"require '$incl';\n"; |
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134 | } |
135 | elsif (/^ifdef\s+(\w+)/) { |
136 | print OUT $t,"if (defined &$1) {\n"; |
137 | $tab += 4; |
138 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
139 | } |
140 | elsif (/^ifndef\s+(\w+)/) { |
141 | print OUT $t,"if (!defined &$1) {\n"; |
142 | $tab += 4; |
143 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
144 | } |
145 | elsif (s/^if\s+//) { |
146 | $new = ''; |
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147 | $inif = 1; |
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148 | do expr(); |
748a9306 |
149 | $inif = 0; |
154e51a4 |
150 | print OUT $t,"if ($new) {\n"; |
151 | $tab += 4; |
152 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
153 | } |
154 | elsif (s/^elif\s+//) { |
155 | $new = ''; |
748a9306 |
156 | $inif = 1; |
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157 | do expr(); |
748a9306 |
158 | $inif = 0; |
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159 | $tab -= 4; |
160 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
161 | print OUT $t,"}\n${t}elsif ($new) {\n"; |
162 | $tab += 4; |
163 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
164 | } |
165 | elsif (/^else/) { |
166 | $tab -= 4; |
167 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
168 | print OUT $t,"}\n${t}else {\n"; |
169 | $tab += 4; |
170 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
171 | } |
172 | elsif (/^endif/) { |
173 | $tab -= 4; |
174 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
175 | print OUT $t,"}\n"; |
176 | } |
177 | } |
178 | } |
179 | print OUT "1;\n"; |
180 | } |
181 | |
182 | sub expr { |
183 | while ($_ ne '') { |
184 | s/^(\s+)// && do {$new .= ' '; next;}; |
185 | s/^(0x[0-9a-fA-F]+)// && do {$new .= $1; next;}; |
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186 | s/^(\d+)[LlUu]*// && do {$new .= $1; next;}; |
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187 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
188 | s/^'((\\"|[^"])*)'// && do { |
189 | if ($curargs{$1}) { |
190 | $new .= "ord('\$$1')"; |
191 | } |
192 | else { |
193 | $new .= "ord('$1')"; |
194 | } |
195 | next; |
196 | }; |
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197 | s/^sizeof\s*\(([^)]+)\)/{$1}/ && do { |
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198 | $new .= '$sizeof'; |
199 | next; |
200 | }; |
201 | s/^([_a-zA-Z]\w*)// && do { |
202 | $id = $1; |
fe14fcc3 |
203 | if ($id eq 'struct') { |
204 | s/^\s+(\w+)//; |
205 | $id .= ' ' . $1; |
206 | $isatype{$id} = 1; |
207 | } |
208 | elsif ($id eq 'unsigned') { |
209 | s/^\s+(\w+)//; |
210 | $id .= ' ' . $1; |
211 | $isatype{$id} = 1; |
212 | } |
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213 | if ($curargs{$id}) { |
214 | $new .= '$' . $id; |
215 | } |
216 | elsif ($id eq 'defined') { |
217 | $new .= 'defined'; |
218 | } |
219 | elsif (/^\(/) { |
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220 | s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat |
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221 | $new .= " &$id"; |
222 | } |
223 | elsif ($isatype{$id}) { |
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224 | if ($new =~ /{\s*$/) { |
225 | $new .= "'$id'"; |
226 | } |
227 | elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { |
228 | $new =~ s/\(\s*$//; |
229 | s/^[\s*]*\)//; |
230 | } |
231 | else { |
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232 | $new .= q(').$id.q('); |
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233 | } |
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234 | } |
235 | else { |
c07a80fd |
236 | if ($inif && $new !~ /defined\s*\($/) { |
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237 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)'; |
fb21d8eb |
238 | } |
239 | elsif (/^\[/) { |
240 | $new .= ' $' . $id; |
241 | } |
242 | else { |
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243 | $new .= ' &' . $id; |
244 | } |
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245 | } |
246 | next; |
247 | }; |
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248 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; |
154e51a4 |
249 | } |
250 | } |
251 | ############################################################################## |
1fef88e7 |
252 | __END__ |
253 | |
254 | =head1 NAME |
255 | |
256 | h2ph - convert .h C header files to .ph Perl header files |
257 | |
258 | =head1 SYNOPSIS |
259 | |
260 | B<h2ph [headerfiles]> |
261 | |
262 | =head1 DESCRIPTION |
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263 | |
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264 | I<h2ph> |
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265 | converts any C header files specified to the corresponding Perl header file |
266 | format. |
267 | It is most easily run while in /usr/include: |
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268 | |
269 | cd /usr/include; h2ph * sys/* |
270 | |
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271 | If run with no arguments, filters standard input to standard output. |
1fef88e7 |
272 | |
273 | =head1 ENVIRONMENT |
274 | |
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275 | No environment variables are used. |
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276 | |
277 | =head1 FILES |
278 | |
279 | /usr/include/*.h |
280 | /usr/include/sys/*.h |
281 | |
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282 | etc. |
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283 | |
284 | =head1 AUTHOR |
285 | |
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286 | Larry Wall |
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287 | |
288 | =head1 SEE ALSO |
289 | |
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290 | perl(1) |
1fef88e7 |
291 | |
292 | =head1 DIAGNOSTICS |
293 | |
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294 | The usual warnings if it can't read or write the files involved. |
1fef88e7 |
295 | |
296 | =head1 BUGS |
297 | |
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298 | Doesn't construct the %sizeof array for you. |
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299 | |
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300 | It doesn't handle all C constructs, but it does attempt to isolate |
301 | definitions inside evals so that you can get at the definitions |
302 | that it can translate. |
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303 | |
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304 | It's only intended as a rough tool. |
305 | You may need to dicker with the files produced. |
1fef88e7 |
306 | |
307 | =cut |
308 | |
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309 | !NO!SUBS! |
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310 | |
311 | close OUT or die "Can't close $file: $!"; |
312 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
313 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |