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###################################################
# utility functions to support pidl
# Copyright tridge@samba.org 2000
# released under the GNU GPL
package Parse::Pidl::Util;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(has_property property_matches ParseExpr is_constant);
use strict;
#####################################################################
# flatten an array of arrays into a single array
sub FlattenArray2($)
{
my $a = shift;
my @b;
for my $d (@{$a}) {
for my $d1 (@{$d}) {
push(@b, $d1);
}
}
return \@b;
}
#####################################################################
# flatten an array of arrays into a single array
sub FlattenArray($)
{
my $a = shift;
my @b;
for my $d (@{$a}) {
for my $d1 (@{$d}) {
push(@b, $d1);
}
}
return \@b;
}
#####################################################################
# flatten an array of hashes into a single hash
sub FlattenHash($)
{
my $a = shift;
my %b;
for my $d (@{$a}) {
for my $k (keys %{$d}) {
$b{$k} = $d->{$k};
}
}
return \%b;
}
#####################################################################
# a dumper wrapper to prevent dependence on the Data::Dumper module
# unless we actually need it
sub MyDumper($)
{
require Data::Dumper;
my $s = shift;
return Data::Dumper::Dumper($s);
}
#####################################################################
# see if a pidl property list contains a given property
sub has_property($$)
{
my($e) = shift;
my($p) = shift;
if (!defined $e->{PROPERTIES}) {
return undef;
}
return $e->{PROPERTIES}->{$p};
}
#####################################################################
# see if a pidl property matches a value
sub property_matches($$$)
{
my($e) = shift;
my($p) = shift;
my($v) = shift;
if (!defined has_property($e, $p)) {
return undef;
}
if ($e->{PROPERTIES}->{$p} =~ /$v/) {
return 1;
}
return undef;
}
# return 1 if the string is a C constant
sub is_constant($)
{
my $s = shift;
if (defined $s && $s =~ /^\d/) {
return 1;
}
return 0;
}
# return a "" quoted string, unless already quoted
sub make_str($)
{
my $str = shift;
if (substr($str, 0, 1) eq "\"") {
return $str;
}
return "\"" . $str . "\"";
}
# a hack to build on platforms that don't like negative enum values
my $useUintEnums = 0;
sub setUseUintEnums($)
{
$useUintEnums = shift;
}
sub useUintEnums()
{
return $useUintEnums;
}
sub ParseExpr($$)
{
my($expr,$varlist) = @_;
die("Undefined value in ParseExpr") if not defined($expr);
my @tokens = split /((?:[A-Za-z_])(?:(?:(?:[A-Za-z0-9_.])|(?:->))+))/, $expr;
my $ret = "";
foreach my $t (@tokens) {
if (defined($varlist->{$t})) {
$ret .= $varlist->{$t};
} else {
$ret .= $t;
}
}
return $ret;
}
1;
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