core/multilib/i386/usr/bin/glib-mkenums
#! /usr/bin/perl
use warnings;
use File::Basename;
use Safe;
# glib-mkenums.pl
# Information about the current enumeration
my $flags; # Is enumeration a bitmask?
my $option_underscore_name; # Overriden underscore variant of the enum name
# for example to fix the cases we don't get the
# mixed-case -> underscorized transform right.
my $option_lowercase_name; # DEPRECATED. A lower case name to use as part
# of the *_get_type() function, instead of the
# one that we guess. For instance, when an enum
# uses abnormal capitalization and we can not
# guess where to put the underscores.
my $seenbitshift; # Have we seen bitshift operators?
my $enum_prefix; # Prefix for this enumeration
my $enumname; # Name for this enumeration
my $enumshort; # $enumname without prefix
my $enumname_prefix; # prefix of $enumname
my $enumindex = 0; # Global enum counter
my $firstenum = 1; # Is this the first enumeration per file?
my @entries; # [ $name, $val ] for each entry
my $sandbox = Safe->new; # sandbox for safe evaluation of expressions
sub parse_trigraph {
my $opts = shift;
my @opts;
for $opt (split /\s*,\s*/, $opts) {
$opt =~ s/^\s*//;
$opt =~ s/\s*$//;
my ($key,$val) = $opt =~ /(\w+)(?:=(.+))?/;
defined $val or $val = 1;
push @opts, $key, $val;
}
@opts;
}
sub parse_entries {
my $file = shift;
my $file_name = shift;
my $looking_for_name = 0;
while (<$file>) {
# read lines until we have no open comments
while (m@/\*([^*]|\*(?!/))*$@) {
my $new;
defined ($new = <$file>) || die "Unmatched comment in $ARGV";
$_ .= $new;
}
# strip comments w/o options
s@/\*(?!<)
([^*]+|\*(?!/))*
\*/@@gx;
# strip newlines
s@\n@ @;
# skip empty lines
next if m@^\s*$@;
if ($looking_for_name) {
if (/^\s*(\w+)/) {
$enumname = $1;
return 1;
}
}
# Handle include files
if (/^\#include\s*<([^>]*)>/ ) {
my $file= "../$1";
open NEWFILE, $file or die "Cannot open include file $file: $!\n";
if (parse_entries (\*NEWFILE, $NEWFILE)) {
return 1;
} else {
next;
}
}
if (/^\s*\}\s*(\w+)/) {
$enumname = $1;
$enumindex++;
return 1;
}
if (/^\s*\}/) {
$enumindex++;
$looking_for_name = 1;
next;
}
if (m@^\s*
(\w+)\s* # name
(?:=( # value
\s*\w+\s*\(.*\)\s* # macro with multiple args
| # OR
(?:[^,/]|/(?!\*))* # anything but a comma or comment
))?,?\s*
(?:/\*< # options
(([^*]|\*(?!/))*)
>\s*\*/)?,?
\s*$
@x) {
my ($name, $value, $options) = ($1,$2,$3);
if (!defined $flags && defined $value && $value =~ /<</) {
$seenbitshift = 1;
}
if (defined $options) {
my %options = parse_trigraph($options);
if (!defined $options{skip}) {
push @entries, [ $name, $value, $options{nick} ];
}
} else {
push @entries, [ $name, $value ];
}
} elsif (m@^\s*\#@) {
# ignore preprocessor directives
} else {
print STDERR "$0: $file_name:$.: Failed to parse `$_'\n";
}
}
return 0;
}
sub version {
print "glib-mkenums version glib-2.32.3\n";
print "glib-mkenums comes with ABSOLUTELY NO WARRANTY.\n";
print "You may redistribute copies of glib-mkenums under the terms of\n";
print "the GNU General Public License which can be found in the\n";
print "GLib source package. Sources, examples and contact\n";
print "information are available at http://www.gtk.org\n";
exit 0;
}
sub usage {
print "Usage:\n";
print " glib-mkenums [OPTION...] [FILES...]\n\n";
print "Help Options:\n";
print " -h, --help Show this help message\n\n";
print "Utility Options:\n";
print " --identifier-prefix <text> Identifier prefix\n";
print " --symbol-prefix <text> Symbol prefix\n";
print " --fhead <text> Output file header\n";
print " --fprod <text> Per input file production\n";
print " --ftail <text> Output file trailer\n";
print " --eprod <text> Per enum text (produced prior to value itarations)\n";
print " --vhead <text> Value header, produced before iterating over enum values\n";
print " --vprod <text> Value text, produced for each enum value\n";
print " --vtail <text> Value tail, produced after iterating over enum values\n";
print " --comments <text> Comment structure\n";
print " --template file Template file\n";
print " -v, --version Print version informations\n\n";
print "Production text substitutions:\n";
print " \@EnumName\@ PrefixTheXEnum\n";
print " \@enum_name\@ prefix_the_xenum\n";
print " \@ENUMNAME\@ PREFIX_THE_XENUM\n";
print " \@ENUMSHORT\@ THE_XENUM\n";
print " \@ENUMPREFIX\@ PREFIX\n";
print " \@VALUENAME\@ PREFIX_THE_XVALUE\n";
print " \@valuenick\@ the-xvalue\n";
print " \@valuenum\@ the integer value (limited support, Since: 2.26)\n";
print " \@type\@ either enum or flags\n";
print " \@Type\@ either Enum or Flags\n";
print " \@TYPE\@ either ENUM or FLAGS\n";
print " \@filename\@ name of current input file\n";
print " \@basename\@ base name of the current input file (Since: 2.22)\n";
exit 0;
}
# production variables:
my $idprefix = ""; # "G", "Gtk", etc
my $symprefix = ""; # "g", "gtk", etc, if not just lc($idprefix)
my $fhead = ""; # output file header
my $fprod = ""; # per input file production
my $ftail = ""; # output file trailer
my $eprod = ""; # per enum text (produced prior to value itarations)
my $vhead = ""; # value header, produced before iterating over enum values
my $vprod = ""; # value text, produced for each enum value
my $vtail = ""; # value tail, produced after iterating over enum values
my $comment_tmpl = ""; # comment template
sub read_template_file {
my ($file) = @_;
my %tmpl = ('file-header', $fhead,
'file-production', $fprod,
'file-tail', $ftail,
'enumeration-production', $eprod,
'value-header', $vhead,
'value-production', $vprod,
'value-tail', $vtail,
'comment', $comment_tmpl);
my $in = 'junk';
open (FILE, $file) || die "Can't open $file: $!\n";
while (<FILE>) {
if (/^\/\*\*\*\s+(BEGIN|END)\s+([\w-]+)\s+\*\*\*\//) {
if (($in eq 'junk') && ($1 eq 'BEGIN') && (exists($tmpl{$2}))) {
$in = $2;
next;
}
elsif (($in eq $2) && ($1 eq 'END') && (exists($tmpl{$2}))) {
$in = 'junk';
next;
} else {
die "Malformed template file $file\n";
}
}
if (!($in eq 'junk')) {
$tmpl{$in} .= $_;
}
}
close (FILE);
if (!($in eq 'junk')) {
die "Malformed template file $file\n";
}
$fhead = $tmpl{'file-header'};
$fprod = $tmpl{'file-production'};
$ftail = $tmpl{'file-tail'};
$eprod = $tmpl{'enumeration-production'};
$vhead = $tmpl{'value-header'};
$vprod = $tmpl{'value-production'};
$vtail = $tmpl{'value-tail'};
$comment_tmpl = $tmpl{'comment'};
# default to C-style comments
$comment_tmpl = "/* \@comment\@ */" if $comment_tmpl eq "";
}
if (!defined $ARGV[0]) {
usage;
}
while ($_=$ARGV[0],/^-/) {
shift;
last if /^--$/;
if (/^--template$/) { read_template_file (shift); }
elsif (/^--identifier-prefix$/) { $idprefix = shift }
elsif (/^--symbol-prefix$/) { $symprefix = shift }
elsif (/^--fhead$/) { $fhead = $fhead . shift }
elsif (/^--fprod$/) { $fprod = $fprod . shift }
elsif (/^--ftail$/) { $ftail = $ftail . shift }
elsif (/^--eprod$/) { $eprod = $eprod . shift }
elsif (/^--vhead$/) { $vhead = $vhead . shift }
elsif (/^--vprod$/) { $vprod = $vprod . shift }
elsif (/^--vtail$/) { $vtail = $vtail . shift }
elsif (/^--comments$/) { $comment_tmpl = shift }
elsif (/^--help$/ || /^-h$/ || /^-\?$/) { usage; }
elsif (/^--version$/ || /^-v$/) { version; }
else { usage; }
last if not defined($ARGV[0]);
}
# put auto-generation comment
{
my $comment = $comment_tmpl;
$comment =~ s/\@comment\@/Generated data (by glib-mkenums)/;
print "\n" . $comment . "\n\n";
}
if (length($fhead)) {
my $prod = $fhead;
my $base = basename ($ARGV[0]);
$prod =~ s/\@filename\@/$ARGV[0]/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";
}
while (<>) {
if (eof) {
close (ARGV); # reset line numbering
$firstenum = 1; # Flag to print filename at next enum
}
# read lines until we have no open comments
while (m@/\*([^*]|\*(?!/))*$@) {
my $new;
defined ($new = <>) || die "Unmatched comment in $ARGV";
$_ .= $new;
}
# strip comments w/o options
s@/\*(?!<)
([^*]+|\*(?!/))*
\*/@@gx;
# ignore forward declarations
next if /^\s*typedef\s+enum.*;/;
if (m@^\s*typedef\s+enum\s*
({)?\s*
(?:/\*<
(([^*]|\*(?!/))*)
>\s*\*/)?
\s*({)?
@x) {
if (defined $2) {
my %options = parse_trigraph ($2);
next if defined $options{skip};
$enum_prefix = $options{prefix};
$flags = $options{flags};
$option_lowercase_name = $options{lowercase_name};
$option_underscore_name = $options{underscore_name};
} else {
$enum_prefix = undef;
$flags = undef;
$option_lowercase_name = undef;
$option_underscore_name = undef;
}
if (defined $option_lowercase_name) {
if (defined $option_underscore_name) {
print STDERR "$0: $ARGV:$.: lowercase_name overriden with underscore_name\n";
$option_lowercase_name = undef;
} else {
print STDERR "$0: $ARGV:$.: lowercase_name is deprecated, use underscore_name\n";
}
}
# Didn't have trailing '{' look on next lines
if (!defined $1 && !defined $4) {
while (<>) {
if (eof) {
die "Hit end of file while parsing enum in $ARGV";
}
if (s/^\s*\{//) {
last;
}
}
}
$seenbitshift = 0;
@entries = ();
# Now parse the entries
parse_entries (\*ARGV, $ARGV);
# figure out if this was a flags or enums enumeration
if (!defined $flags) {
$flags = $seenbitshift;
}
# Autogenerate a prefix
if (!defined $enum_prefix) {
for (@entries) {
my $nick = $_->[2];
if (!defined $nick) {
my $name = $_->[0];
if (defined $enum_prefix) {
my $tmp = ~ ($name ^ $enum_prefix);
($tmp) = $tmp =~ /(^\xff*)/;
$enum_prefix = $enum_prefix & $tmp;
} else {
$enum_prefix = $name;
}
}
}
if (!defined $enum_prefix) {
$enum_prefix = "";
} else {
# Trim so that it ends in an underscore
$enum_prefix =~ s/_[^_]*$/_/;
}
} else {
# canonicalize user defined prefixes
$enum_prefix = uc($enum_prefix);
$enum_prefix =~ s/-/_/g;
$enum_prefix =~ s/(.*)([^_])$/$1$2_/;
}
for $entry (@entries) {
my ($name,$num,$nick) = @{$entry};
if (!defined $nick) {
($nick = $name) =~ s/^$enum_prefix//;
$nick =~ tr/_/-/;
$nick = lc($nick);
@{$entry} = ($name, $num, $nick);
}
}
# Spit out the output
if (defined $option_underscore_name) {
$enumlong = uc $option_underscore_name;
$enumsym = lc $option_underscore_name;
$enumshort = $enumlong;
$enumshort =~ s/^[A-Z][A-Z0-9]*_//;
$enumname_prefix = $enumlong;
$enumname_prefix =~ s/_$enumshort$//;
} elsif (!$symprefix && !$idprefix) {
# enumname is e.g. GMatchType
$enspace = $enumname;
$enspace =~ s/^([A-Z][a-z]*).*$/$1/;
$enumshort = $enumname;
$enumshort =~ s/^[A-Z][a-z]*//;
$enumshort =~ s/([^A-Z])([A-Z])/$1_$2/g;
$enumshort =~ s/([A-Z][A-Z])([A-Z][0-9a-z])/$1_$2/g;
$enumshort = uc($enumshort);
$enumname_prefix = $enumname;
$enumname_prefix =~ s/^([A-Z][a-z]*).*$/$1/;
$enumname_prefix = uc($enumname_prefix);
$enumlong = uc($enspace) . "_" . $enumshort;
$enumsym = lc($enspace) . "_" . lc($enumshort);
if (defined($option_lowercase_name)) {
$enumsym = $option_lowercase_name;
}
} else {
$enumshort = $enumname;
if ($idprefix) {
$enumshort =~ s/^${idprefix}//;
} else {
$enumshort =~ s/^[A-Z][a-z]*//;
}
$enumshort =~ s/([^A-Z])([A-Z])/$1_$2/g;
$enumshort =~ s/([A-Z][A-Z])([A-Z][0-9a-z])/$1_$2/g;
$enumshort = uc($enumshort);
$enumname_prefix = $symprefix && uc($symprefix) || uc($idprefix);
$enumlong = $enumname_prefix . "_" . $enumshort;
$enumsym = lc($enumlong);
}
if ($firstenum) {
$firstenum = 0;
if (length($fprod)) {
my $prod = $fprod;
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 "$prod\n";
}
}
if (length($eprod)) {
my $prod = $eprod;
$prod =~ s/\@enum_name\@/$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 "$prod\n";
}
if (length($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";
}