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4633a7c4 LW |
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 $^O eq 'os2'); # "case-forgiving" |
4633a7c4 LW |
20 | |
21 | open OUT,">$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 | ||
a0d0e21e LW |
33 | 'di '; |
34 | 'ds 00 \"'; | |
35 | 'ig 00 '; | |
154e51a4 | 36 | |
154e51a4 LW |
37 | !GROK!THIS! |
38 | ||
4633a7c4 LW |
39 | # In the following, perl variables are not expanded during extraction. |
40 | ||
41 | print OUT <<'!NO!SUBS!'; | |
154e51a4 | 42 | |
2c2acf7e | 43 | use Config; |
44 | $perlincl = @Config{installsitearch}; | |
45 | ||
154e51a4 LW |
46 | chdir '/usr/include' || die "Can't cd /usr/include"; |
47 | ||
fe14fcc3 LW |
48 | @isatype = split(' ',<<END); |
49 | char uchar u_char | |
50 | short ushort u_short | |
51 | int uint u_int | |
52 | long ulong u_long | |
53 | FILE | |
54 | END | |
55 | ||
55204971 | 56 | @isatype{@isatype} = (1) x @isatype; |
748a9306 | 57 | $inif = 0; |
fe14fcc3 LW |
58 | |
59 | @ARGV = ('-') unless @ARGV; | |
154e51a4 LW |
60 | |
61 | foreach $file (@ARGV) { | |
fe14fcc3 LW |
62 | if ($file eq '-') { |
63 | open(IN, "-"); | |
64 | open(OUT, ">-"); | |
65 | } | |
66 | else { | |
67 | ($outfile = $file) =~ s/\.h$/.ph/ || next; | |
68 | print "$file -> $outfile\n"; | |
69 | if ($file =~ m|^(.*)/|) { | |
70 | $dir = $1; | |
71 | if (!-d "$perlincl/$dir") { | |
72 | mkdir("$perlincl/$dir",0777); | |
73 | } | |
154e51a4 | 74 | } |
fe14fcc3 LW |
75 | open(IN,"$file") || ((warn "Can't open $file: $!\n"),next); |
76 | open(OUT,">$perlincl/$outfile") || die "Can't create $outfile: $!\n"; | |
154e51a4 | 77 | } |
154e51a4 LW |
78 | while (<IN>) { |
79 | chop; | |
80 | while (/\\$/) { | |
81 | chop; | |
82 | $_ .= <IN>; | |
83 | chop; | |
84 | } | |
85 | if (s:/\*:\200:g) { | |
86 | s:\*/:\201:g; | |
87 | s/\200[^\201]*\201//g; # delete single line comments | |
88 | if (s/\200.*//) { # begin multi-line comment? | |
89 | $_ .= '/*'; | |
90 | $_ .= <IN>; | |
91 | redo; | |
92 | } | |
93 | } | |
94 | if (s/^#\s*//) { | |
95 | if (s/^define\s+(\w+)//) { | |
96 | $name = $1; | |
97 | $new = ''; | |
98 | s/\s+$//; | |
99 | if (s/^\(([\w,\s]*)\)//) { | |
100 | $args = $1; | |
101 | if ($args ne '') { | |
102 | foreach $arg (split(/,\s*/,$args)) { | |
55204971 | 103 | $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; |
154e51a4 LW |
104 | $curargs{$arg} = 1; |
105 | } | |
106 | $args =~ s/\b(\w)/\$$1/g; | |
107 | $args = "local($args) = \@_;\n$t "; | |
108 | } | |
109 | s/^\s+//; | |
110 | do expr(); | |
111 | $new =~ s/(["\\])/\\$1/g; | |
112 | if ($t ne '') { | |
113 | $new =~ s/(['\\])/\\$1/g; | |
114 | print OUT $t, | |
115 | "eval 'sub $name {\n$t ${args}eval \"$new\";\n$t}';\n"; | |
116 | } | |
117 | else { | |
118 | print OUT "sub $name {\n ${args}eval \"$new\";\n}\n"; | |
119 | } | |
120 | %curargs = (); | |
121 | } | |
122 | else { | |
123 | s/^\s+//; | |
124 | do expr(); | |
125 | $new = 1 if $new eq ''; | |
126 | if ($t ne '') { | |
127 | $new =~ s/(['\\])/\\$1/g; | |
128 | print OUT $t,"eval 'sub $name {",$new,";}';\n"; | |
129 | } | |
130 | else { | |
131 | print OUT $t,"sub $name {",$new,";}\n"; | |
132 | } | |
133 | } | |
134 | } | |
fb21d8eb | 135 | elsif (/^include\s*<(.*)>/) { |
d9d8d8de LW |
136 | ($incl = $1) =~ s/\.h$/.ph/; |
137 | print OUT $t,"require '$incl';\n"; | |
154e51a4 LW |
138 | } |
139 | elsif (/^ifdef\s+(\w+)/) { | |
140 | print OUT $t,"if (defined &$1) {\n"; | |
141 | $tab += 4; | |
142 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
143 | } | |
144 | elsif (/^ifndef\s+(\w+)/) { | |
145 | print OUT $t,"if (!defined &$1) {\n"; | |
146 | $tab += 4; | |
147 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
148 | } | |
149 | elsif (s/^if\s+//) { | |
150 | $new = ''; | |
748a9306 | 151 | $inif = 1; |
154e51a4 | 152 | do expr(); |
748a9306 | 153 | $inif = 0; |
154e51a4 LW |
154 | print OUT $t,"if ($new) {\n"; |
155 | $tab += 4; | |
156 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
157 | } | |
158 | elsif (s/^elif\s+//) { | |
159 | $new = ''; | |
748a9306 | 160 | $inif = 1; |
154e51a4 | 161 | do expr(); |
748a9306 | 162 | $inif = 0; |
154e51a4 LW |
163 | $tab -= 4; |
164 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
165 | print OUT $t,"}\n${t}elsif ($new) {\n"; | |
166 | $tab += 4; | |
167 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
168 | } | |
169 | elsif (/^else/) { | |
170 | $tab -= 4; | |
171 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
172 | print OUT $t,"}\n${t}else {\n"; | |
173 | $tab += 4; | |
174 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
175 | } | |
176 | elsif (/^endif/) { | |
177 | $tab -= 4; | |
178 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
179 | print OUT $t,"}\n"; | |
180 | } | |
181 | } | |
182 | } | |
183 | print OUT "1;\n"; | |
184 | } | |
185 | ||
186 | sub expr { | |
187 | while ($_ ne '') { | |
188 | s/^(\s+)// && do {$new .= ' '; next;}; | |
189 | s/^(0x[0-9a-fA-F]+)// && do {$new .= $1; next;}; | |
b276c83d | 190 | s/^(\d+)[LlUu]*// && do {$new .= $1; next;}; |
154e51a4 LW |
191 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
192 | s/^'((\\"|[^"])*)'// && do { | |
193 | if ($curargs{$1}) { | |
194 | $new .= "ord('\$$1')"; | |
195 | } | |
196 | else { | |
197 | $new .= "ord('$1')"; | |
198 | } | |
199 | next; | |
200 | }; | |
b276c83d | 201 | s/^sizeof\s*\(([^)]+)\)/{$1}/ && do { |
154e51a4 LW |
202 | $new .= '$sizeof'; |
203 | next; | |
204 | }; | |
205 | s/^([_a-zA-Z]\w*)// && do { | |
206 | $id = $1; | |
fe14fcc3 LW |
207 | if ($id eq 'struct') { |
208 | s/^\s+(\w+)//; | |
209 | $id .= ' ' . $1; | |
210 | $isatype{$id} = 1; | |
211 | } | |
212 | elsif ($id eq 'unsigned') { | |
213 | s/^\s+(\w+)//; | |
214 | $id .= ' ' . $1; | |
215 | $isatype{$id} = 1; | |
216 | } | |
154e51a4 LW |
217 | if ($curargs{$id}) { |
218 | $new .= '$' . $id; | |
219 | } | |
220 | elsif ($id eq 'defined') { | |
221 | $new .= 'defined'; | |
222 | } | |
223 | elsif (/^\(/) { | |
e5d73d77 | 224 | s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat |
154e51a4 LW |
225 | $new .= " &$id"; |
226 | } | |
227 | elsif ($isatype{$id}) { | |
fe14fcc3 LW |
228 | if ($new =~ /{\s*$/) { |
229 | $new .= "'$id'"; | |
230 | } | |
231 | elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { | |
232 | $new =~ s/\(\s*$//; | |
233 | s/^[\s*]*\)//; | |
234 | } | |
235 | else { | |
b276c83d | 236 | $new .= q(').$id.q('); |
fe14fcc3 | 237 | } |
154e51a4 LW |
238 | } |
239 | else { | |
c07a80fd | 240 | if ($inif && $new !~ /defined\s*\($/) { |
748a9306 | 241 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)'; |
fb21d8eb | 242 | } |
243 | elsif (/^\[/) { | |
244 | $new .= ' $' . $id; | |
245 | } | |
246 | else { | |
748a9306 LW |
247 | $new .= ' &' . $id; |
248 | } | |
154e51a4 LW |
249 | } |
250 | next; | |
251 | }; | |
fb21d8eb | 252 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; |
154e51a4 LW |
253 | } |
254 | } | |
255 | ############################################################################## | |
256 | ||
257 | # These next few lines are legal in both Perl and nroff. | |
258 | ||
a0d0e21e LW |
259 | .00 ; # finish .ig |
260 | ||
154e51a4 LW |
261 | 'di \" finish diversion--previous line must be blank |
262 | .nr nl 0-1 \" fake up transition to first page again | |
263 | .nr % 0 \" start at page 1 | |
264 | '; __END__ ############# From here on it's a standard manual page ############ | |
265 | .TH H2PH 1 "August 8, 1990" | |
266 | .AT 3 | |
267 | .SH NAME | |
268 | h2ph \- convert .h C header files to .ph Perl header files | |
269 | .SH SYNOPSIS | |
270 | .B h2ph [headerfiles] | |
271 | .SH DESCRIPTION | |
272 | .I h2ph | |
273 | converts any C header files specified to the corresponding Perl header file | |
274 | format. | |
275 | It is most easily run while in /usr/include: | |
276 | .nf | |
277 | ||
278 | cd /usr/include; h2ph * sys/* | |
279 | ||
280 | .fi | |
fe14fcc3 | 281 | If run with no arguments, filters standard input to standard output. |
154e51a4 LW |
282 | .SH ENVIRONMENT |
283 | No environment variables are used. | |
284 | .SH FILES | |
285 | /usr/include/*.h | |
286 | .br | |
287 | /usr/include/sys/*.h | |
288 | .br | |
289 | etc. | |
290 | .SH AUTHOR | |
291 | Larry Wall | |
292 | .SH "SEE ALSO" | |
293 | perl(1) | |
294 | .SH DIAGNOSTICS | |
295 | The usual warnings if it can't read or write the files involved. | |
296 | .SH BUGS | |
297 | Doesn't construct the %sizeof array for you. | |
298 | .PP | |
299 | It doesn't handle all C constructs, but it does attempt to isolate | |
300 | definitions inside evals so that you can get at the definitions | |
301 | that it can translate. | |
302 | .PP | |
303 | It's only intended as a rough tool. | |
304 | You may need to dicker with the files produced. | |
305 | .ex | |
306 | !NO!SUBS! | |
4633a7c4 LW |
307 | |
308 | close OUT or die "Can't close $file: $!"; | |
309 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
310 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |