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|
#!/usr/bin/perl -w
# figure whether all { have a corresponding }
sub brace_level {
my $line = shift;
my $level = 0;
my $i = 0;
my $c;
# eat up strings
$line =~ s/\"([^\"])*\"//g;
# eat up chars
$line =~ s/\'([^\'])*\'//g;
# eat up non braces
$line =~ s/([^\}\{])//g;
# count { } levels
do {
$c = substr ($line, $i++, 1);
if (ord ($c) == ord ('{')) {
$level++
} elsif (ord ($c) == ord ('}')) {
$level--;
}
} while (ord ($c));
# return brace level (0 means braces match)
return $level;
}
my $gen_externs = 0;
my $gen_interns = 0;
my $gen_export_proto = 0;
my $gen_array = 0;
# parse options
while ($_ = $ARGV[0], /^-/) {
shift;
last if /^--$/;
if (/^--externs$/) { $gen_externs = 1 }
if (/^--interns$/) { $gen_interns = 1 }
if (/^--export-proto$/) { $gen_export_proto = 1 }
elsif (/^--array$/) { $gen_array = 1 }
}
print "\n/*\n * Generated data (by mktypes.pl";
if ($gen_externs) {
print " --externs";
}
if ($gen_interns) {
print " --interns";
}
if ($gen_export_proto) {
print " --export-proto";
}
if ($gen_array) {
print " --array";
}
print ")\n */\n";
my %adefs; # hash, indexed with {$uc_type}, value = [ $type, $uc_type, $uc_parent, $uc_iface, $file ]
while (<>) {
my $type = 0;
my $file = $ARGV;
if (eof) {
close (ARGV); # reset line numbering
}
# read lines until comment end is matched
while (m@/\*([^*]|\*[^/*])*\**$@x) {
my $new = <>;
(defined ($new) && ($file eq $ARGV)) or die "$0: $file:$.: Unmatched comment\n";
$_ .= $new;
}
# strip comments
s@/\*([^*]|\*[^/*])*\**\*/@@gx;
# discard non BSE_BUILTIN_TYPE lines
if (!m@^BSE_BUILTIN_TYPE@x) {
next;
}
# read up to next ) to finish arg list
while (!m@\)@) {
my $new = <>;
(defined ($new) && ($file eq $ARGV)) or die "$0: Unmatched argument brace in $file\n";
$_ .= $new;
}
# parse type name
if (/\(\s*(\w+)\s*\)/) {
$type = $1;
} else {
die "$0: can't figure type name from BSE_BUILTIN_TYPE() in $file\n";
}
if ($gen_array) {
my $uc_type = $type;
my $uc_parent = 0;
my $uc_iface = 0;
# read up to next { to begin function block
while (!m@\{@) {
my $new = <>;
(defined ($new) && ($file eq $ARGV)) or die "$0: Unmatched curly brace in $file\n";
$_ .= $new;
}
# read lines until } is matched
while (brace_level ($_) != 0) {
my $new = <>;
(defined ($new) && ($file eq $ARGV)) or die "$0: Unmatched block braces in $file\n";
$_ .= $new;
}
# ok! we now have the complete function body in $_
# parse parent type
if (/_type_register_(static|abstract)\s*\(\s*(\w+)\s*,/) {
$uc_parent = $2;
} else {
die "$0: can't figure parent type of $type from $file\n";
}
# parse parent type
if (/bse_type_add_interface/) {
if (/bse_type_add_interface\s*\([^\),]*,\s*(\w+)\s*,/) {
$uc_iface = $1;
} else {
die "$0: can't figure parent type of $type from $file\n";
}
}
$uc_type =~ s/^Bse//;
$uc_type =~ s/([^A-Z])([A-Z])/$1_$2/g;
$uc_type =~ s/([A-Z][A-Z])([A-Z][0-9a-z])/$1_$2/g;
$uc_type = uc($uc_type);
$uc_type = "BSE_TYPE_" . $uc_type;
$adefs{$uc_type} = [ $type, $uc_type, $uc_parent, $uc_iface, $file ];
}
if ($gen_externs || $gen_interns) {
print "\n/* --- $file --- */\n";
}
if ($gen_externs) {
print "extern GType bse_type_builtin_id_$type;\n";
}
if ($gen_export_proto) {
print "extern BSE_BUILTIN_PROTO ($type);\n";
}
if ($gen_interns) {
print "GType bse_type_builtin_id_$type = 0;\n";
}
}
# print out an array entry
sub foreach_entry {
my $entry = shift;
my @entry;
my ($type, $uc_type, $uc_parent, $uc_iface, $file) = @{$entry};
# delete this entry, so we don't get called twice for it
undef $adefs{$uc_type};
# need to print out the parent type first?
# print STDERR "$type has parent: $uc_parent: " . $adefs{$uc_parent} . "\n";
if ($adefs{$uc_parent}) {
foreach_entry ($adefs{$uc_parent});
}
# need to print out an interface type first?
if ($adefs{$uc_iface}) {
foreach_entry ($adefs{$uc_iface});
}
print " { &bse_type_builtin_id_$type, bse_type_builtin_register_$type },\n";
}
if ($gen_array) {
while (($key,$value) = each %adefs) {
undef $key; # dunno how else to silence -w, probably need more perl experience ;)
if (defined ($value)) {
foreach_entry ($value);
}
}
}
print "\n/*\n * Generated data ends here\n */\n";
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