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Diffstat (limited to 'h2ph.man')
| -rwxr-xr-x | h2ph.man | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/h2ph.man b/h2ph.man new file mode 100755 index 0000000000..59caa58c92 --- /dev/null +++ b/h2ph.man @@ -0,0 +1,253 @@ +#!/usr/local/bin/perl +'di'; +'ig00'; + +$perlincl = '/usr/local/lib/perl'; + +chdir '/usr/include' || die "Can't cd /usr/include"; + +@isatype = split(' ',<<END); + char uchar u_char + short ushort u_short + int uint u_int + long ulong u_long + FILE +END + +@isatype{@isatype} = (1) x @isatype; + +@ARGV = ('-') unless @ARGV; + +foreach $file (@ARGV) { + if ($file eq '-') { + open(IN, "-"); + open(OUT, ">-"); + } + else { + ($outfile = $file) =~ s/\.h$/.ph/ || next; + print "$file -> $outfile\n"; + if ($file =~ m|^(.*)/|) { + $dir = $1; + if (!-d "$perlincl/$dir") { + mkdir("$perlincl/$dir",0777); + } + } + open(IN,"$file") || ((warn "Can't open $file: $!\n"),next); + open(OUT,">$perlincl/$outfile") || die "Can't create $outfile: $!\n"; + } + while (<IN>) { + chop; + while (/\\$/) { + chop; + $_ .= <IN>; + chop; + } + if (s:/\*:\200:g) { + s:\*/:\201:g; + s/\200[^\201]*\201//g; # delete single line comments + if (s/\200.*//) { # begin multi-line comment? + $_ .= '/*'; + $_ .= <IN>; + redo; + } + } + if (s/^#\s*//) { + if (s/^define\s+(\w+)//) { + $name = $1; + $new = ''; + s/\s+$//; + if (s/^\(([\w,\s]*)\)//) { + $args = $1; + if ($args ne '') { + foreach $arg (split(/,\s*/,$args)) { + $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; + $curargs{$arg} = 1; + } + $args =~ s/\b(\w)/\$$1/g; + $args = "local($args) = \@_;\n$t "; + } + s/^\s+//; + do expr(); + $new =~ s/(["\\])/\\$1/g; + if ($t ne '') { + $new =~ s/(['\\])/\\$1/g; + print OUT $t, + "eval 'sub $name {\n$t ${args}eval \"$new\";\n$t}';\n"; + } + else { + print OUT "sub $name {\n ${args}eval \"$new\";\n}\n"; + } + %curargs = (); + } + else { + s/^\s+//; + do expr(); + $new = 1 if $new eq ''; + if ($t ne '') { + $new =~ s/(['\\])/\\$1/g; + print OUT $t,"eval 'sub $name {",$new,";}';\n"; + } + else { + print OUT $t,"sub $name {",$new,";}\n"; + } + } + } + elsif (/^include\s+<(.*)>/) { + ($incl = $1) =~ s/\.h$/.ph/; + print OUT $t,"require '$incl';\n"; + } + elsif (/^ifdef\s+(\w+)/) { + print OUT $t,"if (defined &$1) {\n"; + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + } + elsif (/^ifndef\s+(\w+)/) { + print OUT $t,"if (!defined &$1) {\n"; + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + } + elsif (s/^if\s+//) { + $new = ''; + do expr(); + print OUT $t,"if ($new) {\n"; + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + } + elsif (s/^elif\s+//) { + $new = ''; + do expr(); + $tab -= 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + print OUT $t,"}\n${t}elsif ($new) {\n"; + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + } + elsif (/^else/) { + $tab -= 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + print OUT $t,"}\n${t}else {\n"; + $tab += 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + } + elsif (/^endif/) { + $tab -= 4; + $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); + print OUT $t,"}\n"; + } + } + } + print OUT "1;\n"; +} + +sub expr { + while ($_ ne '') { + s/^(\s+)// && do {$new .= ' '; next;}; + s/^(0x[0-9a-fA-F]+)// && do {$new .= $1; next;}; + s/^(\d+)// && do {$new .= $1; next;}; + s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; + s/^'((\\"|[^"])*)'// && do { + if ($curargs{$1}) { + $new .= "ord('\$$1')"; + } + else { + $new .= "ord('$1')"; + } + next; + }; + s/^sizeof\s*\(([^)]+)\)/{$1}/ && do { + $new .= '$sizeof'; + next; + }; + s/^([_a-zA-Z]\w*)// && do { + $id = $1; + if ($id eq 'struct') { + s/^\s+(\w+)//; + $id .= ' ' . $1; + $isatype{$id} = 1; + } + elsif ($id eq 'unsigned') { + s/^\s+(\w+)//; + $id .= ' ' . $1; + $isatype{$id} = 1; + } + if ($curargs{$id}) { + $new .= '$' . $id; + } + elsif ($id eq 'defined') { + $new .= 'defined'; + } + elsif (/^\(/) { + s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat + $new .= " &$id"; + } + elsif ($isatype{$id}) { + if ($new =~ /{\s*$/) { + $new .= "'$id'"; + } + elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { + $new =~ s/\(\s*$//; + s/^[\s*]*\)//; + } + else { + $new .= $id; + } + } + else { + $new .= ' &' . $id; + } + next; + }; + s/^(.)// && do {$new .= $1; next;}; + } +} +############################################################################## + + # These next few lines are legal in both Perl and nroff. + +.00; # finish .ig + +'di \" finish diversion--previous line must be blank +.nr nl 0-1 \" fake up transition to first page again +.nr % 0 \" start at page 1 +'; __END__ ############# From here on it's a standard manual page ############ +.TH H2PH 1 "August 8, 1990" +.AT 3 +.SH NAME +h2ph \- convert .h C header files to .ph Perl header files +.SH SYNOPSIS +.B h2ph [headerfiles] +.SH DESCRIPTION +.I h2ph +converts any C header files specified to the corresponding Perl header file +format. +It is most easily run while in /usr/include: +.nf + + cd /usr/include; h2ph * sys/* + +.fi +If run with no arguments, filters standard input to standard output. +.SH ENVIRONMENT +No environment variables are used. +.SH FILES +/usr/include/*.h +.br +/usr/include/sys/*.h +.br +etc. +.SH AUTHOR +Larry Wall +.SH "SEE ALSO" +perl(1) +.SH DIAGNOSTICS +The usual warnings if it can't read or write the files involved. +.SH BUGS +Doesn't construct the %sizeof array for you. +.PP +It doesn't handle all C constructs, but it does attempt to isolate +definitions inside evals so that you can get at the definitions +that it can translate. +.PP +It's only intended as a rough tool. +You may need to dicker with the files produced. +.ex |