perl 3.0 patch #22 patch #19, continued

See patch #19.

1 files changed, 247 insertions, 0 deletions

diff --git a/h2ph.SH b/h2ph.SH
new file mode 100644
index 0000000000..cac5adae95
--- /dev/null
+++ b/h2ph.SH
@@ -0,0 +1,247 @@
+case $CONFIG in
+'')
+    if test ! -f config.sh; then
+	ln ../config.sh . || \
+	ln ../../config.sh . || \
+	ln ../../../config.sh . || \
+	(echo "Can't find config.sh."; exit 1)
+    fi
+    . config.sh
+    ;;
+esac
+: This forces SH files to create target in same directory as SH file.
+: This is so that make depend always knows where to find SH derivatives.
+case "$0" in
+*/*) cd `expr X$0 : 'X\(.*\)/'` ;;
+esac
+echo "Extracting h2ph (with variable substitutions)"
+: This section of the file will have variable substitutions done on it.
+: Move anything that needs config subs from !NO!SUBS! section to !GROK!THIS!.
+: Protect any dollar signs and backticks that you do not want interpreted
+: by putting a backslash in front.  You may delete these comments.
+$spitshell >h2ph <<!GROK!THIS!
+#!$bin/perl
+'di';
+'ig00';
+
+\$perlincl = '$privlib';
+!GROK!THIS!
+
+: In the following dollars and backticks do not need the extra backslash.
+$spitshell >>h2ph <<'!NO!SUBS!'
+
+chdir '/usr/include' || die "Can't cd /usr/include";
+
+%isatype = ('char',1,'short',1,'int',1,'long',1);
+
+foreach $file (@ARGV) {
+    ($outfile = $file) =~ s/\.h$/.ph/;
+    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)) {
+			    $curargs{$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 <(.*)>/) {
+		print OUT $t,"do '$1' || die \"Can't include $1: \$!\";\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('$1')";
+	    }
+	    next;
+	};
+	s/^(struct\s+\w+)//	&& do {$new .= "'$1'"; next;};
+	s/^sizeof\s*\(([^)]+)\)/{$1}/ && do {
+	    $new .= '$sizeof';
+	    next;
+	};
+	s/^([_a-zA-Z]\w*)//	&& do {
+	    $id = $1;
+	    if ($curargs{$id}) {
+		$new .= '$' . $id;
+	    }
+	    elsif ($id eq 'defined') {
+		$new .= 'defined';
+	    }
+	    elsif (/^\(/) {
+		s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/;	# cheat
+		$new .= " &$id";
+	    }
+	    elsif ($isatype{$id}) {
+		$new .= "'$id'";
+	    }
+	    else {
+		$new .= ' &' . $id;
+	    }
+	    next;
+	};
+	s/^(.)//			&& do {$new .= $1; next;};
+    }
+}
+##############################################################################
+
+	# These next few lines are legal in both Perl and nroff.
+
+.00;			# finish .ig
+ 
+'di			\" finish diversion--previous line must be blank
+.nr nl 0-1		\" fake up transition to first page again
+.nr % 0			\" start at page 1
+'; __END__ ############# From here on it's a standard manual page ############
+.TH H2PH 1 "August 8, 1990"
+.AT 3
+.SH NAME
+h2ph \- convert .h C header files to .ph Perl header files
+.SH SYNOPSIS
+.B h2ph [headerfiles]
+.SH DESCRIPTION
+.I h2ph
+converts any C header files specified to the corresponding Perl header file
+format.
+It is most easily run while in /usr/include:
+.nf
+
+	cd /usr/include; h2ph * sys/*
+
+.fi
+.SH ENVIRONMENT
+No environment variables are used.
+.SH FILES
+/usr/include/*.h
+.br
+/usr/include/sys/*.h
+.br
+etc.
+.SH AUTHOR
+Larry Wall
+.SH "SEE ALSO"
+perl(1)
+.SH DIAGNOSTICS
+The usual warnings if it can't read or write the files involved.
+.SH BUGS
+Doesn't construct the %sizeof array for you.
+.PP
+It doesn't handle all C constructs, but it does attempt to isolate
+definitions inside evals so that you can get at the definitions
+that it can translate.
+.PP
+It's only intended as a rough tool.
+You may need to dicker with the files produced.
+.ex
+!NO!SUBS!
+chmod 755 h2ph
+$eunicefix h2ph
+rm -f h2ph.man
+ln h2ph h2ph.man