--- /dev/null
+# $Id: String.pm,v 1.6 2008-08-04 03:35:44 grant Exp $
+
+package XML::SAX::PurePerl::Reader::String;
+
+use strict;
+use vars qw(@ISA);
+
+use XML::SAX::PurePerl::Reader qw(
+ LINE
+ COLUMN
+ BUFFER
+ ENCODING
+ EOF
+);
+
+@ISA = ('XML::SAX::PurePerl::Reader');
+
+use constant DISCARDED => 8;
+use constant STRING => 9;
+use constant USED => 10;
+use constant CHUNK_SIZE => 2048;
+
+sub new {
+ my $class = shift;
+ my $string = shift;
+ my @parts;
+ @parts[BUFFER, EOF, LINE, COLUMN, DISCARDED, STRING, USED] =
+ ('', 0, 1, 0, 0, $string, 0);
+ return bless \@parts, $class;
+}
+
+sub read_more () {
+ my $self = shift;
+ if ($self->[USED] >= length($self->[STRING])) {
+ $self->[EOF]++;
+ return 0;
+ }
+ my $bytes = CHUNK_SIZE;
+ if ($bytes > (length($self->[STRING]) - $self->[USED])) {
+ $bytes = (length($self->[STRING]) - $self->[USED]);
+ }
+ $self->[BUFFER] .= substr($self->[STRING], $self->[USED], $bytes);
+ $self->[USED] += $bytes;
+ return 1;
+ }
+
+
+sub move_along {
+ my($self, $bytes) = @_;
+ my $discarded = substr($self->[BUFFER], 0, $bytes, '');
+ $self->[DISCARDED] += length($discarded);
+
+ # Wish I could skip this lot - tells us where we are in the file
+ my $lines = $discarded =~ tr/\n//;
+ $self->[LINE] += $lines;
+ if ($lines) {
+ $discarded =~ /\n([^\n]*)$/;
+ $self->[COLUMN] = length($1);
+ }
+ else {
+ $self->[COLUMN] += $_[0];
+ }
+}
+
+sub set_encoding {
+ my $self = shift;
+ my ($encoding) = @_;
+
+ XML::SAX::PurePerl::Reader::switch_encoding_string($self->[BUFFER], $encoding, "utf-8");
+ $self->[ENCODING] = $encoding;
+}
+
+sub bytepos {
+ my $self = shift;
+ $self->[DISCARDED];
+}
+
+1;