1 <?xml version=
"1.0" encoding=
"UTF-8"?>
3 xmlns=
"http://relaxng.org/ns/structure/1.0"
4 xmlns:
a=
"http://relaxng.org/ns/compatibility/annotations/1.0"
5 datatypeLibrary=
"http://www.w3.org/2001/XMLSchema-datatypes">
7 <define name=
"pattern1">
9 <param name=
"pattern">-?([
0-
9]+(\.[
0-
9]*)?|\.[
0-
9]+)
</param>
14 <element name=
"elem1">
15 <attribute name=
"attr1">
17 <ref name=
"pattern1"/>