| Subject: | Patch for new feature: event length |
I'm implementing a module that will allow random access to the contents of XML files too big to
fit into memory. I plan to scan the input file for specific element names and build byte offsets
for the XML content of each of those elements. Using XML::Parser::Expat->current_byte almost
allows for this but it does not leave a good way to remove markup from start events.
The attached patch includes a new accessor method for XML::Parser::Expat called
current_length. It wraps the XML_GetCurrentByteCount function exactly like
XML_GetCurrentByteIndex does. The patch also includes changes to the documentation to
reflect the new method.
Thanks for maintaing this great module.
| Subject: | XML-Parser-2.36+current_length.patch |
diff -r -u XML-Parser-2.36/Expat/Expat.pm XML-Parser/Expat/Expat.pm
--- XML-Parser-2.36/Expat/Expat.pm 2007-11-20 06:24:56.000000000 -0800
+++ XML-Parser/Expat/Expat.pm 2009-11-14 13:43:15.000000000 -0800
@@ -194,6 +194,14 @@
}
}
+sub current_length {
+ my $self = shift;
+
+ if ($self->{_State_} == 1) {
+ return GetCurrentByteCount($self->{Parser});
+ }
+}
+
sub base {
my ($self, $newbase) = @_;
my $p = $self->{Parser};
@@ -1013,6 +1021,10 @@
Returns the current position of the parse.
+=item current_length
+
+Returns the number of bytes of markup for the current event
+
=item base([NEWBASE]);
Returns the current value of the base for resolving relative URIs. If
diff -r -u XML-Parser-2.36/Expat/Expat.xs XML-Parser/Expat/Expat.xs
--- XML-Parser-2.36/Expat/Expat.xs 2007-11-16 12:24:18.000000000 -0800
+++ XML-Parser/Expat/Expat.xs 2009-11-14 12:21:18.000000000 -0800
@@ -1971,6 +1971,10 @@
long
XML_GetCurrentByteIndex(parser)
XML_Parser parser
+
+long
+XML_GetCurrentByteCount(parser)
+ XML_Parser parser
int
XML_GetSpecifiedAttributeCount(parser)