From 60dba629ae7e0b2452e9b5d7a8b456f4cd2ca490 Mon Sep 17 00:00:00 2001
From: Not Zed <notzed@gmail.com>
Date: Tue, 1 Feb 2022 06:27:43 +1030
Subject: [PATCH] Add temporary support for new config format.

---
 src/export-defines |  46 +++++++++++++---
 src/genconfig2.pm  | 134 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+), 9 deletions(-)
 create mode 100644 src/genconfig2.pm

diff --git a/src/export-defines b/src/export-defines
index 907b5c1..b32d5e8 100755
--- a/src/export-defines
+++ b/src/export-defines
@@ -1,11 +1,20 @@
 #!/usr/bin/perl
 
+use File::Basename;
+
 use Data::Dumper;
 
+my $scriptPath = dirname(__FILE__);
+push @INC,$scriptPath;
+
+require genconfig;
+require genconfig2;
+
 my @includes = ();
 my $header;
 my $control = "api-defines.def";
 my $output;
+my $hackformat;
 
 while (@ARGV) {
 	my $cmd = shift;
@@ -18,6 +27,10 @@ while (@ARGV) {
 		$verbose++;
 	} elsif ($cmd eq "-I") {
 		push @includes, shift;
+	} elsif ($cmd eq "--hack-new-format") {
+		$hackformat = 1;
+	} elsif ($cmd eq "--hack-new-format-2") {
+		$hackformat = 2;
 	} else {
 		$control = $cmd;
 	}
@@ -25,8 +38,20 @@ while (@ARGV) {
 
 die ("no output specified") if !$output;
 
-my $defs = loadControlFile($control);
-my @exports = @{$defs->{define}};
+my $defs;
+my @xports;
+if ($hackformat == 1) {
+	$defs = genconfig::loadControlFile($control);
+	@exports = grep { $_->{type} eq 'define' } @{$defs};
+} elsif ($hackformat == 2) {
+	push @includes, $scriptPath;
+	my $conf = new genconfig2({ include => \@includes }, $control);
+	$defs = $conf->{objects};
+	@exports = grep { $_->{type} eq 'define' } @{$defs};
+} else {
+	$defs = loadControlFile($control);
+	@exports = @{$defs->{define}};
+}
 my %rawDefines = (); # indexed by header
 
 my $CPPFLAGS = "";
@@ -166,14 +191,17 @@ END
 	# definition.
 	print $fp <<END;
 /* note unsigned types are output as signed for java compatability */
+/* unsigned long long might not be 64 bit i guess, could use sizeof i suppose */
 #define FMT(x) \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), float),    "value=>%a, type=>'f32'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), double),   "value=>%a, type=>'f64'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), int32_t),  "value=>%d, type=>'i32'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), uint32_t), "value=>%d, type=>'u32'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), int64_t),  "value=>%ld, type=>'i64'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), uint64_t), "value=>%ld, type=>'u64'", \\
-	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), typeof(char[])),  "value=>'%s', type=>'string'", "type => undefined" )))))))
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), float),    "value=>'%a', type=>'f32'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), double),   "value=>'%a', type=>'f64'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), int32_t),  "value=>'%d', type=>'i32'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), uint32_t), "value=>'0x%08x', type=>'u32'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), int64_t),  "value=>'%ld', type=>'i64'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), uint64_t), "value=>'0x%016lx', type=>'u64'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), unsigned long long), "value=>'0x%016llx', type=>'u64'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), long long), "value=>'0x%016llx', type=>'i64'", \\
+	__builtin_choose_expr(__builtin_types_compatible_p(typeof(x), typeof(char[])),  "value=>'%s', type=>'string'", "type => undefined" )))))))))
 
 int main(int argc, char **argv) {
  FILE *fp = fopen(argv[1], "w");
diff --git a/src/genconfig2.pm b/src/genconfig2.pm
new file mode 100644
index 0000000..c3f7af1
--- /dev/null
+++ b/src/genconfig2.pm
@@ -0,0 +1,134 @@
+package genconfig2;
+
+use File::Basename;
+use strict;
+
+require tokenise;
+
+#
+
+# parser for control file
+
+# format:
+# type name (token) * {
+#  ( match (params) *
+#    ( {{ literal }} | ; )
+#  )*
+# }
+# or
+# type name (token *) {{
+#   literal
+# }}
+
+# tokens are separated by lwsp or ';'
+
+sub new {
+	my $class = shift;
+	my $options = shift;
+	my $self = {
+		options => $options,
+		objects => [],
+	};
+
+	foreach my $path (@_) {
+		loadControlFile($self, $path);
+	}
+
+	bless $self, $class;
+	return $self;
+}
+
+sub findInclude {
+	my $self = shift;
+	my $file = shift;
+
+	foreach my $dir (@{$self->{options}->{include}}) {
+		my $path = "$dir/$file";
+		return $path if -e $path;
+	}
+
+	return $file;
+}
+
+sub loadControlFile {
+	my $self = shift;
+	my $path = shift;
+	my $list = $self->{objects};
+	my $target;
+	my $item;
+	my $literal;
+	my $state = 0;
+	my @states;
+	my $tokeniser = new tokenise($path);
+
+	while (my $t = $tokeniser->next()) {
+		#print " $state $t\n";
+		if ($state == 0) {
+			if ($t eq 'include') {
+				my $file = $tokeniser->next();
+				$tokeniser->include(findInclude($self, $file));
+			} elsif ($tokeniser->{type} eq 'token') {
+				$target = { type => $t, options => [], items => [] };
+				push @$list, $target;
+				$state = 1;
+			} else {
+				die("$tokeniser->{file}->{path}:$tokeniser->{file}->{lineno}:$tokeniser->{colno}: expected type token");
+			}
+		} elsif ($state == 1) {
+			if ($tokeniser->{type} eq 'token') {
+				$target->{name} = $t;
+				$state = 2;
+			} else {
+				die("$tokeniser->{file}->{path}:$tokeniser->{file}->{lineno}:$tokeniser->{colno}: expected match token");
+			}
+		} elsif ($state == 2) {
+			if ($t eq '{') {
+				$state = 3;
+			} elsif ($tokeniser->{type} eq 'literal') {
+				$target->{literal} = stripLiteral($t);
+				$state =0;
+			} elsif ($tokeniser->{type} eq 'token') {
+				push @{$target->{options}}, $t;
+			} else {
+				die("$tokeniser->{file}->{path}:$tokeniser->{file}->{lineno}:$tokeniser->{colno}: expecting { or {{literal}} or option: not '$t'");
+			}
+		} elsif ($state == 3) {
+			if ($t eq '}') {
+				$state = 0;
+			} elsif ($tokeniser->{type} eq 'token') {
+				$item = { match => $t, options => [] };
+				push @{$target->{items}}, $item;
+				$state = 4;
+			} else {
+				die("$tokeniser->{file}->{path}:$tokeniser->{file}->{lineno}:$tokeniser->{colno}: expecting } or match token");
+			}
+		} elsif ($state == 4) {
+			if ($t eq ';') {
+				$state = 3;
+			} elsif ($tokeniser->{type} eq 'token') {
+				push @{$item->{options}}, $t;
+			} elsif ($tokeniser->{type} eq 'literal') {
+				$item->{literal} .= stripLiteral($t);
+				$state = 3;
+			} else {
+				die("$tokeniser->{file}->{path}:$tokeniser->{file}->{lineno}:$tokeniser->{colno}: not expecting type=$tokeniser->{type} value=$t");
+			}
+		}
+	}
+	die "parse error in '$path' state=$state" if $state;
+}
+
+sub stripLiteral {
+	my $t = shift;
+
+	if ($t =~ m/\n/s) {
+		$t =~ s/^\s*\n//s;
+		$t =~ s/\n\s+$/\n/s;
+	} else {
+		$t =~ s/^\s+//;
+		$t =~ s/\s+$//;
+	}
+	$t;
+}
+
+1;
-- 
2.39.5