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154e51a4 |
1 | case $CONFIG in |
2 | '') |
3 | if test ! -f config.sh; then |
4 | ln ../config.sh . || \ |
5 | ln ../../config.sh . || \ |
6 | ln ../../../config.sh . || \ |
7 | (echo "Can't find config.sh."; exit 1) |
8 | fi |
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9 | . ./config.sh |
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10 | ;; |
11 | esac |
12 | : This forces SH files to create target in same directory as SH file. |
13 | : This is so that make depend always knows where to find SH derivatives. |
14 | case "$0" in |
15 | */*) cd `expr X$0 : 'X\(.*\)/'` ;; |
16 | esac |
17 | echo "Extracting h2ph (with variable substitutions)" |
18 | : This section of the file will have variable substitutions done on it. |
19 | : Move anything that needs config subs from !NO!SUBS! section to !GROK!THIS!. |
20 | : Protect any dollar signs and backticks that you do not want interpreted |
21 | : by putting a backslash in front. You may delete these comments. |
22 | $spitshell >h2ph <<!GROK!THIS! |
23 | #!$bin/perl |
24 | 'di'; |
25 | 'ig00'; |
26 | |
27 | \$perlincl = '$privlib'; |
28 | !GROK!THIS! |
29 | |
30 | : In the following dollars and backticks do not need the extra backslash. |
31 | $spitshell >>h2ph <<'!NO!SUBS!' |
32 | |
33 | chdir '/usr/include' || die "Can't cd /usr/include"; |
34 | |
35 | %isatype = ('char',1,'short',1,'int',1,'long',1); |
36 | |
37 | foreach $file (@ARGV) { |
38 | ($outfile = $file) =~ s/\.h$/.ph/; |
39 | print "$file -> $outfile\n"; |
40 | if ($file =~ m|^(.*)/|) { |
41 | $dir = $1; |
42 | if (!-d "$perlincl/$dir") { |
43 | mkdir("$perlincl/$dir",0777); |
44 | } |
45 | } |
46 | open(IN,"$file") || ((warn "Can't open $file: $!\n"),next); |
47 | open(OUT,">$perlincl/$outfile") || die "Can't create $outfile: $!\n"; |
48 | while (<IN>) { |
49 | chop; |
50 | while (/\\$/) { |
51 | chop; |
52 | $_ .= <IN>; |
53 | chop; |
54 | } |
55 | if (s:/\*:\200:g) { |
56 | s:\*/:\201:g; |
57 | s/\200[^\201]*\201//g; # delete single line comments |
58 | if (s/\200.*//) { # begin multi-line comment? |
59 | $_ .= '/*'; |
60 | $_ .= <IN>; |
61 | redo; |
62 | } |
63 | } |
64 | if (s/^#\s*//) { |
65 | if (s/^define\s+(\w+)//) { |
66 | $name = $1; |
67 | $new = ''; |
68 | s/\s+$//; |
69 | if (s/^\(([\w,\s]*)\)//) { |
70 | $args = $1; |
71 | if ($args ne '') { |
72 | foreach $arg (split(/,\s*/,$args)) { |
73 | $curargs{$arg} = 1; |
74 | } |
75 | $args =~ s/\b(\w)/\$$1/g; |
76 | $args = "local($args) = \@_;\n$t "; |
77 | } |
78 | s/^\s+//; |
79 | do expr(); |
80 | $new =~ s/(["\\])/\\$1/g; |
81 | if ($t ne '') { |
82 | $new =~ s/(['\\])/\\$1/g; |
83 | print OUT $t, |
84 | "eval 'sub $name {\n$t ${args}eval \"$new\";\n$t}';\n"; |
85 | } |
86 | else { |
87 | print OUT "sub $name {\n ${args}eval \"$new\";\n}\n"; |
88 | } |
89 | %curargs = (); |
90 | } |
91 | else { |
92 | s/^\s+//; |
93 | do expr(); |
94 | $new = 1 if $new eq ''; |
95 | if ($t ne '') { |
96 | $new =~ s/(['\\])/\\$1/g; |
97 | print OUT $t,"eval 'sub $name {",$new,";}';\n"; |
98 | } |
99 | else { |
100 | print OUT $t,"sub $name {",$new,";}\n"; |
101 | } |
102 | } |
103 | } |
104 | elsif (/^include <(.*)>/) { |
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105 | ($incl = $1) =~ s/\.h$/.ph/; |
106 | print OUT $t,"require '$incl';\n"; |
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107 | } |
108 | elsif (/^ifdef\s+(\w+)/) { |
109 | print OUT $t,"if (defined &$1) {\n"; |
110 | $tab += 4; |
111 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
112 | } |
113 | elsif (/^ifndef\s+(\w+)/) { |
114 | print OUT $t,"if (!defined &$1) {\n"; |
115 | $tab += 4; |
116 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
117 | } |
118 | elsif (s/^if\s+//) { |
119 | $new = ''; |
120 | do expr(); |
121 | print OUT $t,"if ($new) {\n"; |
122 | $tab += 4; |
123 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
124 | } |
125 | elsif (s/^elif\s+//) { |
126 | $new = ''; |
127 | do expr(); |
128 | $tab -= 4; |
129 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
130 | print OUT $t,"}\n${t}elsif ($new) {\n"; |
131 | $tab += 4; |
132 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
133 | } |
134 | elsif (/^else/) { |
135 | $tab -= 4; |
136 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
137 | print OUT $t,"}\n${t}else {\n"; |
138 | $tab += 4; |
139 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
140 | } |
141 | elsif (/^endif/) { |
142 | $tab -= 4; |
143 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); |
144 | print OUT $t,"}\n"; |
145 | } |
146 | } |
147 | } |
148 | print OUT "1;\n"; |
149 | } |
150 | |
151 | sub expr { |
152 | while ($_ ne '') { |
153 | s/^(\s+)// && do {$new .= ' '; next;}; |
154 | s/^(0x[0-9a-fA-F]+)// && do {$new .= $1; next;}; |
155 | s/^(\d+)// && do {$new .= $1; next;}; |
156 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
157 | s/^'((\\"|[^"])*)'// && do { |
158 | if ($curargs{$1}) { |
159 | $new .= "ord('\$$1')"; |
160 | } |
161 | else { |
162 | $new .= "ord('$1')"; |
163 | } |
164 | next; |
165 | }; |
166 | s/^(struct\s+\w+)// && do {$new .= "'$1'"; next;}; |
167 | s/^sizeof\s*\(([^)]+)\)/{$1}/ && do { |
168 | $new .= '$sizeof'; |
169 | next; |
170 | }; |
171 | s/^([_a-zA-Z]\w*)// && do { |
172 | $id = $1; |
173 | if ($curargs{$id}) { |
174 | $new .= '$' . $id; |
175 | } |
176 | elsif ($id eq 'defined') { |
177 | $new .= 'defined'; |
178 | } |
179 | elsif (/^\(/) { |
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180 | s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat |
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181 | $new .= " &$id"; |
182 | } |
183 | elsif ($isatype{$id}) { |
184 | $new .= "'$id'"; |
185 | } |
186 | else { |
187 | $new .= ' &' . $id; |
188 | } |
189 | next; |
190 | }; |
191 | s/^(.)// && do {$new .= $1; next;}; |
192 | } |
193 | } |
194 | ############################################################################## |
195 | |
196 | # These next few lines are legal in both Perl and nroff. |
197 | |
198 | .00; # finish .ig |
199 | |
200 | 'di \" finish diversion--previous line must be blank |
201 | .nr nl 0-1 \" fake up transition to first page again |
202 | .nr % 0 \" start at page 1 |
203 | '; __END__ ############# From here on it's a standard manual page ############ |
204 | .TH H2PH 1 "August 8, 1990" |
205 | .AT 3 |
206 | .SH NAME |
207 | h2ph \- convert .h C header files to .ph Perl header files |
208 | .SH SYNOPSIS |
209 | .B h2ph [headerfiles] |
210 | .SH DESCRIPTION |
211 | .I h2ph |
212 | converts any C header files specified to the corresponding Perl header file |
213 | format. |
214 | It is most easily run while in /usr/include: |
215 | .nf |
216 | |
217 | cd /usr/include; h2ph * sys/* |
218 | |
219 | .fi |
220 | .SH ENVIRONMENT |
221 | No environment variables are used. |
222 | .SH FILES |
223 | /usr/include/*.h |
224 | .br |
225 | /usr/include/sys/*.h |
226 | .br |
227 | etc. |
228 | .SH AUTHOR |
229 | Larry Wall |
230 | .SH "SEE ALSO" |
231 | perl(1) |
232 | .SH DIAGNOSTICS |
233 | The usual warnings if it can't read or write the files involved. |
234 | .SH BUGS |
235 | Doesn't construct the %sizeof array for you. |
236 | .PP |
237 | It doesn't handle all C constructs, but it does attempt to isolate |
238 | definitions inside evals so that you can get at the definitions |
239 | that it can translate. |
240 | .PP |
241 | It's only intended as a rough tool. |
242 | You may need to dicker with the files produced. |
243 | .ex |
244 | !NO!SUBS! |
245 | chmod 755 h2ph |
246 | $eunicefix h2ph |
247 | rm -f h2ph.man |
248 | ln h2ph h2ph.man |