mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-02 07:36:17 +01:00
f049262a61
Given
typedef enum MyFoo MyFoo;
glib-mkenums would get confused, not notice the ";", and then keep
skipping lines until it found one that started with a "{", possibly
even going into the next file.
Fix it to just ignore those lines instead (and also, to error out if
it hits eof while parsing an enum).
https://bugzilla.gnome.org/show_bug.cgi?id=669595
566 lines
18 KiB
Plaintext
Executable File
566 lines
18 KiB
Plaintext
Executable File
#! @PERL_PATH@
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use warnings;
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use File::Basename;
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use Safe;
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# glib-mkenums.pl
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# Information about the current enumeration
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my $flags; # Is enumeration a bitmask?
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my $option_underscore_name; # Overriden underscore variant of the enum name
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# for example to fix the cases we don't get the
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# mixed-case -> underscorized transform right.
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my $option_lowercase_name; # DEPRECATED. A lower case name to use as part
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# of the *_get_type() function, instead of the
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# one that we guess. For instance, when an enum
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# uses abnormal capitalization and we can not
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# guess where to put the underscores.
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my $seenbitshift; # Have we seen bitshift operators?
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my $enum_prefix; # Prefix for this enumeration
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my $enumname; # Name for this enumeration
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my $enumshort; # $enumname without prefix
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my $enumname_prefix; # prefix of $enumname
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my $enumindex = 0; # Global enum counter
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my $firstenum = 1; # Is this the first enumeration per file?
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my @entries; # [ $name, $val ] for each entry
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my $sandbox = Safe->new; # sandbox for safe evaluation of expressions
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sub parse_trigraph {
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my $opts = shift;
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my @opts;
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for $opt (split /\s*,\s*/, $opts) {
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$opt =~ s/^\s*//;
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$opt =~ s/\s*$//;
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my ($key,$val) = $opt =~ /(\w+)(?:=(.+))?/;
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defined $val or $val = 1;
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push @opts, $key, $val;
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}
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@opts;
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}
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sub parse_entries {
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my $file = shift;
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my $file_name = shift;
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my $looking_for_name = 0;
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while (<$file>) {
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# read lines until we have no open comments
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while (m@/\*([^*]|\*(?!/))*$@) {
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my $new;
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defined ($new = <$file>) || die "Unmatched comment in $ARGV";
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$_ .= $new;
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}
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# strip comments w/o options
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s@/\*(?!<)
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([^*]+|\*(?!/))*
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\*/@@gx;
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# strip newlines
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s@\n@ @;
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# skip empty lines
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next if m@^\s*$@;
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if ($looking_for_name) {
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if (/^\s*(\w+)/) {
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$enumname = $1;
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return 1;
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}
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}
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# Handle include files
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if (/^\#include\s*<([^>]*)>/ ) {
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my $file= "../$1";
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open NEWFILE, $file or die "Cannot open include file $file: $!\n";
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if (parse_entries (\*NEWFILE, $NEWFILE)) {
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return 1;
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} else {
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next;
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}
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}
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if (/^\s*\}\s*(\w+)/) {
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$enumname = $1;
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$enumindex++;
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return 1;
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}
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if (/^\s*\}/) {
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$enumindex++;
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$looking_for_name = 1;
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next;
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}
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if (m@^\s*
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(\w+)\s* # name
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(?:=( # value
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\s*\w+\s*\(.*\)\s* # macro with multiple args
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| # OR
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(?:[^,/]|/(?!\*))* # anything but a comma or comment
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))?,?\s*
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(?:/\*< # options
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(([^*]|\*(?!/))*)
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>\s*\*/)?,?
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\s*$
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@x) {
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my ($name, $value, $options) = ($1,$2,$3);
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if (!defined $flags && defined $value && $value =~ /<</) {
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$seenbitshift = 1;
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}
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if (defined $options) {
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my %options = parse_trigraph($options);
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if (!defined $options{skip}) {
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push @entries, [ $name, $value, $options{nick} ];
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}
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} else {
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push @entries, [ $name, $value ];
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}
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} elsif (m@^\s*\#@) {
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# ignore preprocessor directives
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} else {
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print STDERR "$0: $file_name:$.: Failed to parse `$_'\n";
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}
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}
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return 0;
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}
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sub version {
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print "glib-mkenums version glib-@GLIB_VERSION@\n";
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print "glib-mkenums comes with ABSOLUTELY NO WARRANTY.\n";
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print "You may redistribute copies of glib-mkenums under the terms of\n";
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print "the GNU General Public License which can be found in the\n";
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print "GLib source package. Sources, examples and contact\n";
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print "information are available at http://www.gtk.org\n";
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exit 0;
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}
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sub usage {
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print "Usage:\n";
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print " glib-mkenums [OPTION...] [FILES...]\n\n";
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print "Help Options:\n";
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print " -h, --help Show this help message\n\n";
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print "Utility Options:\n";
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print " --identifier-prefix <text> Identifier prefix\n";
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print " --symbol-prefix <text> Symbol prefix\n";
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print " --fhead <text> Output file header\n";
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print " --fprod <text> Per input file production\n";
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print " --ftail <text> Output file trailer\n";
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print " --eprod <text> Per enum text (produced prior to value itarations)\n";
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print " --vhead <text> Value header, produced before iterating over enum values\n";
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print " --vprod <text> Value text, produced for each enum value\n";
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print " --vtail <text> Value tail, produced after iterating over enum values\n";
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print " --comments <text> Comment structure\n";
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print " --template file Template file\n";
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print " -v, --version Print version informations\n\n";
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print "Production text substitutions:\n";
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print " \@EnumName\@ PrefixTheXEnum\n";
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print " \@enum_name\@ prefix_the_xenum\n";
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print " \@ENUMNAME\@ PREFIX_THE_XENUM\n";
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print " \@ENUMSHORT\@ THE_XENUM\n";
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print " \@ENUMPREFIX\@ PREFIX\n";
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print " \@VALUENAME\@ PREFIX_THE_XVALUE\n";
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print " \@valuenick\@ the-xvalue\n";
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print " \@valuenum\@ the integer value (limited support, Since: 2.26)\n";
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print " \@type\@ either enum or flags\n";
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print " \@Type\@ either Enum or Flags\n";
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print " \@TYPE\@ either ENUM or FLAGS\n";
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print " \@filename\@ name of current input file\n";
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print " \@basename\@ base name of the current input file (Since: 2.22)\n";
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exit 0;
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}
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# production variables:
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my $idprefix = ""; # "G", "Gtk", etc
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my $symprefix = ""; # "g", "gtk", etc, if not just lc($idprefix)
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my $fhead = ""; # output file header
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my $fprod = ""; # per input file production
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my $ftail = ""; # output file trailer
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my $eprod = ""; # per enum text (produced prior to value itarations)
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my $vhead = ""; # value header, produced before iterating over enum values
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my $vprod = ""; # value text, produced for each enum value
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my $vtail = ""; # value tail, produced after iterating over enum values
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my $comment_tmpl = ""; # comment template
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sub read_template_file {
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my ($file) = @_;
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my %tmpl = ('file-header', $fhead,
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'file-production', $fprod,
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'file-tail', $ftail,
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'enumeration-production', $eprod,
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'value-header', $vhead,
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'value-production', $vprod,
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'value-tail', $vtail,
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'comment', $comment_tmpl);
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my $in = 'junk';
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open (FILE, $file) || die "Can't open $file: $!\n";
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while (<FILE>) {
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if (/^\/\*\*\*\s+(BEGIN|END)\s+([\w-]+)\s+\*\*\*\//) {
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if (($in eq 'junk') && ($1 eq 'BEGIN') && (exists($tmpl{$2}))) {
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$in = $2;
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next;
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}
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elsif (($in eq $2) && ($1 eq 'END') && (exists($tmpl{$2}))) {
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$in = 'junk';
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next;
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} else {
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die "Malformed template file $file\n";
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}
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}
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if (!($in eq 'junk')) {
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$tmpl{$in} .= $_;
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}
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}
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close (FILE);
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if (!($in eq 'junk')) {
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die "Malformed template file $file\n";
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}
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$fhead = $tmpl{'file-header'};
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$fprod = $tmpl{'file-production'};
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$ftail = $tmpl{'file-tail'};
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$eprod = $tmpl{'enumeration-production'};
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$vhead = $tmpl{'value-header'};
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$vprod = $tmpl{'value-production'};
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$vtail = $tmpl{'value-tail'};
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$comment_tmpl = $tmpl{'comment'};
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# default to C-style comments
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$comment_tmpl = "/* \@comment\@ */" if $comment_tmpl eq "";
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}
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if (!defined $ARGV[0]) {
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usage;
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}
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while ($_=$ARGV[0],/^-/) {
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shift;
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last if /^--$/;
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if (/^--template$/) { read_template_file (shift); }
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elsif (/^--identifier-prefix$/) { $idprefix = shift }
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elsif (/^--symbol-prefix$/) { $symprefix = shift }
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elsif (/^--fhead$/) { $fhead = $fhead . shift }
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elsif (/^--fprod$/) { $fprod = $fprod . shift }
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elsif (/^--ftail$/) { $ftail = $ftail . shift }
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elsif (/^--eprod$/) { $eprod = $eprod . shift }
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elsif (/^--vhead$/) { $vhead = $vhead . shift }
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elsif (/^--vprod$/) { $vprod = $vprod . shift }
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elsif (/^--vtail$/) { $vtail = $vtail . shift }
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elsif (/^--comments$/) { $comment_tmpl = shift }
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elsif (/^--help$/ || /^-h$/ || /^-\?$/) { usage; }
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elsif (/^--version$/ || /^-v$/) { version; }
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else { usage; }
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last if not defined($ARGV[0]);
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}
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# put auto-generation comment
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{
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my $comment = $comment_tmpl;
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$comment =~ s/\@comment\@/Generated data (by glib-mkenums)/;
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print "\n" . $comment . "\n\n";
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}
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if (length($fhead)) {
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my $prod = $fhead;
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my $base = basename ($ARGV[0]);
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$prod =~ s/\@filename\@/$ARGV[0]/g;
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$prod =~ s/\@basename\@/$base/g;
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$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
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$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
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chomp ($prod);
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print "$prod\n";
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}
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while (<>) {
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if (eof) {
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close (ARGV); # reset line numbering
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$firstenum = 1; # Flag to print filename at next enum
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}
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# read lines until we have no open comments
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while (m@/\*([^*]|\*(?!/))*$@) {
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my $new;
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defined ($new = <>) || die "Unmatched comment in $ARGV";
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$_ .= $new;
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}
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# strip comments w/o options
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s@/\*(?!<)
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([^*]+|\*(?!/))*
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\*/@@gx;
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# ignore forward declarations
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next if /^\s*typedef\s+enum.*;/;
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if (m@^\s*typedef\s+enum\s*
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({)?\s*
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(?:/\*<
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(([^*]|\*(?!/))*)
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>\s*\*/)?
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\s*({)?
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@x) {
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if (defined $2) {
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my %options = parse_trigraph ($2);
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next if defined $options{skip};
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$enum_prefix = $options{prefix};
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$flags = $options{flags};
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$option_lowercase_name = $options{lowercase_name};
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$option_underscore_name = $options{underscore_name};
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} else {
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$enum_prefix = undef;
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$flags = undef;
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$option_lowercase_name = undef;
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$option_underscore_name = undef;
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}
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if (defined $option_lowercase_name) {
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if (defined $option_underscore_name) {
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print STDERR "$0: $ARGV:$.: lowercase_name overriden with underscore_name\n";
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$option_lowercase_name = undef;
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} else {
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print STDERR "$0: $ARGV:$.: lowercase_name is deprecated, use underscore_name\n";
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}
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}
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# Didn't have trailing '{' look on next lines
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if (!defined $1 && !defined $4) {
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while (<>) {
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if (eof) {
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die "Hit end of file while parsing enum in $ARGV";
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}
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if (s/^\s*\{//) {
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last;
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}
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}
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}
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$seenbitshift = 0;
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@entries = ();
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# Now parse the entries
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parse_entries (\*ARGV, $ARGV);
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# figure out if this was a flags or enums enumeration
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if (!defined $flags) {
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$flags = $seenbitshift;
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}
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# Autogenerate a prefix
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if (!defined $enum_prefix) {
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for (@entries) {
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my $nick = $_->[2];
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if (!defined $nick) {
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my $name = $_->[0];
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if (defined $enum_prefix) {
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my $tmp = ~ ($name ^ $enum_prefix);
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($tmp) = $tmp =~ /(^\xff*)/;
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$enum_prefix = $enum_prefix & $tmp;
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} else {
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$enum_prefix = $name;
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}
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}
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}
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if (!defined $enum_prefix) {
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$enum_prefix = "";
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} else {
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# Trim so that it ends in an underscore
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$enum_prefix =~ s/_[^_]*$/_/;
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}
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} else {
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# canonicalize user defined prefixes
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$enum_prefix = uc($enum_prefix);
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$enum_prefix =~ s/-/_/g;
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$enum_prefix =~ s/(.*)([^_])$/$1$2_/;
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}
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for $entry (@entries) {
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my ($name,$num,$nick) = @{$entry};
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if (!defined $nick) {
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($nick = $name) =~ s/^$enum_prefix//;
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$nick =~ tr/_/-/;
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$nick = lc($nick);
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@{$entry} = ($name, $num, $nick);
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}
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}
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# Spit out the output
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if (defined $option_underscore_name) {
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$enumlong = uc $option_underscore_name;
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$enumsym = lc $option_underscore_name;
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$enumshort = $enumlong;
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$enumshort =~ s/^[A-Z][A-Z0-9]*_//;
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$enumname_prefix = $enumlong;
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$enumname_prefix =~ s/_$enumshort$//;
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} elsif (!$symprefix && !$idprefix) {
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# enumname is e.g. GMatchType
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$enspace = $enumname;
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$enspace =~ s/^([A-Z][a-z]*).*$/$1/;
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$enumshort = $enumname;
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$enumshort =~ s/^[A-Z][a-z]*//;
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$enumshort =~ s/([^A-Z])([A-Z])/$1_$2/g;
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$enumshort =~ s/([A-Z][A-Z])([A-Z][0-9a-z])/$1_$2/g;
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$enumshort = uc($enumshort);
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$enumname_prefix = $enumname;
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$enumname_prefix =~ s/^([A-Z][a-z]*).*$/$1/;
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$enumname_prefix = uc($enumname_prefix);
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$enumlong = uc($enspace) . "_" . $enumshort;
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$enumsym = lc($enspace) . "_" . lc($enumshort);
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if (defined($option_lowercase_name)) {
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$enumsym = $option_lowercase_name;
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}
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} else {
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$enumshort = $enumname;
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if ($idprefix) {
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$enumshort =~ s/^${idprefix}//;
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} else {
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$enumshort =~ s/^[A-Z][a-z]*//;
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}
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$enumshort =~ s/([^A-Z])([A-Z])/$1_$2/g;
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$enumshort =~ s/([A-Z][A-Z])([A-Z][0-9a-z])/$1_$2/g;
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$enumshort = uc($enumshort);
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$enumname_prefix = $symprefix && uc($symprefix) || uc($idprefix);
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$enumlong = $enumname_prefix . "_" . $enumshort;
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$enumsym = lc($enumlong);
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}
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if ($firstenum) {
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$firstenum = 0;
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if (length($fprod)) {
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my $prod = $fprod;
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my $base = basename ($ARGV);
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$prod =~ s/\@filename\@/$ARGV/g;
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$prod =~ s/\@basename\@/$base/g;
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$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
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$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
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chomp ($prod);
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print "$prod\n";
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}
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}
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if (length($eprod)) {
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my $prod = $eprod;
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$prod =~ s/\@enum_name\@/$enumsym/g;
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$prod =~ s/\@EnumName\@/$enumname/g;
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$prod =~ s/\@ENUMSHORT\@/$enumshort/g;
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$prod =~ s/\@ENUMNAME\@/$enumlong/g;
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$prod =~ s/\@ENUMPREFIX\@/$enumname_prefix/g;
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if ($flags) { $prod =~ s/\@type\@/flags/g; } else { $prod =~ s/\@type\@/enum/g; }
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if ($flags) { $prod =~ s/\@Type\@/Flags/g; } else { $prod =~ s/\@Type\@/Enum/g; }
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if ($flags) { $prod =~ s/\@TYPE\@/FLAGS/g; } else { $prod =~ s/\@TYPE\@/ENUM/g; }
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$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
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$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
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chomp ($prod);
|
|
|
|
print "$prod\n";
|
|
}
|
|
|
|
if (length($vhead)) {
|
|
my $prod = $vhead;
|
|
|
|
$prod =~ s/\@enum_name\@/$enumsym/g;
|
|
$prod =~ s/\@EnumName\@/$enumname/g;
|
|
$prod =~ s/\@ENUMSHORT\@/$enumshort/g;
|
|
$prod =~ s/\@ENUMNAME\@/$enumlong/g;
|
|
$prod =~ s/\@ENUMPREFIX\@/$enumname_prefix/g;
|
|
if ($flags) { $prod =~ s/\@type\@/flags/g; } else { $prod =~ s/\@type\@/enum/g; }
|
|
if ($flags) { $prod =~ s/\@Type\@/Flags/g; } else { $prod =~ s/\@Type\@/Enum/g; }
|
|
if ($flags) { $prod =~ s/\@TYPE\@/FLAGS/g; } else { $prod =~ s/\@TYPE\@/ENUM/g; }
|
|
$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
|
|
$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
|
|
chomp ($prod);
|
|
|
|
print "$prod\n";
|
|
}
|
|
|
|
if (length($vprod)) {
|
|
my $prod = $vprod;
|
|
my $next_num = 0;
|
|
|
|
$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
|
|
$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
|
|
for (@entries) {
|
|
my ($name,$num,$nick) = @{$_};
|
|
my $tmp_prod = $prod;
|
|
|
|
if ($prod =~ /\@valuenum\@/) {
|
|
# only attempt to eval the value if it is requested
|
|
# this prevents us from throwing errors otherwise
|
|
if (defined $num) {
|
|
# use sandboxed perl evaluation as a reasonable
|
|
# approximation to C constant folding
|
|
$num = $sandbox->reval ($num);
|
|
|
|
# make sure it parsed to an integer
|
|
if (!defined $num or $num !~ /^-?\d+$/) {
|
|
die "Unable to parse enum value '$num'";
|
|
}
|
|
} else {
|
|
$num = $next_num;
|
|
}
|
|
|
|
$tmp_prod =~ s/\@valuenum\@/$num/g;
|
|
$next_num = $num + 1;
|
|
}
|
|
|
|
$tmp_prod =~ s/\@VALUENAME\@/$name/g;
|
|
$tmp_prod =~ s/\@valuenick\@/$nick/g;
|
|
if ($flags) { $tmp_prod =~ s/\@type\@/flags/g; } else { $tmp_prod =~ s/\@type\@/enum/g; }
|
|
if ($flags) { $tmp_prod =~ s/\@Type\@/Flags/g; } else { $tmp_prod =~ s/\@Type\@/Enum/g; }
|
|
if ($flags) { $tmp_prod =~ s/\@TYPE\@/FLAGS/g; } else { $tmp_prod =~ s/\@TYPE\@/ENUM/g; }
|
|
chomp ($tmp_prod);
|
|
|
|
print "$tmp_prod\n";
|
|
}
|
|
}
|
|
|
|
if (length($vtail)) {
|
|
my $prod = $vtail;
|
|
|
|
$prod =~ s/\@enum_name\@/$enumsym/g;
|
|
$prod =~ s/\@EnumName\@/$enumname/g;
|
|
$prod =~ s/\@ENUMSHORT\@/$enumshort/g;
|
|
$prod =~ s/\@ENUMNAME\@/$enumlong/g;
|
|
$prod =~ s/\@ENUMPREFIX\@/$enumname_prefix/g;
|
|
if ($flags) { $prod =~ s/\@type\@/flags/g; } else { $prod =~ s/\@type\@/enum/g; }
|
|
if ($flags) { $prod =~ s/\@Type\@/Flags/g; } else { $prod =~ s/\@Type\@/Enum/g; }
|
|
if ($flags) { $prod =~ s/\@TYPE\@/FLAGS/g; } else { $prod =~ s/\@TYPE\@/ENUM/g; }
|
|
$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
|
|
$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
|
|
chomp ($prod);
|
|
|
|
print "$prod\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if (length($ftail)) {
|
|
my $prod = $ftail;
|
|
my $base = basename ($ARGV);
|
|
|
|
$prod =~ s/\@filename\@/$ARGV/g;
|
|
$prod =~ s/\@basename\@/$base/g;
|
|
$prod =~ s/\\a/\a/g; $prod =~ s/\\b/\b/g; $prod =~ s/\\t/\t/g; $prod =~ s/\\n/\n/g;
|
|
$prod =~ s/\\f/\f/g; $prod =~ s/\\r/\r/g;
|
|
chomp ($prod);
|
|
|
|
print "$prod\n";
|
|
}
|
|
|
|
# put auto-generation comment
|
|
{
|
|
my $comment = $comment_tmpl;
|
|
$comment =~ s/\@comment\@/Generated data ends here/;
|
|
print "\n" . $comment . "\n\n";
|
|
}
|