1.0 The Example
The example contains a single pair of Start/End Namespace chunks
0000000 03 00 08 00 c4 02 00 00 01 00 1c 00 84 01 00 00
0000010 0a 00 00 00 00 00 00 00 00 00 00 00 44 00 00 00
0000020 00 00 00 00 00 00 00 00 1a 00 00 00 36 00 00 00
0000030 54 00 00 00 60 00 00 00 72 00 00 00 ca 00 00 00
0000040 ce 00 00 00 ea 00 00 00 fe 00 00 00 0b 00 6f 00
0000050 72 00 69 00 65 00 6e 00 74 00 61 00 74 00 69 00
0000060 6f 00 6e 00 00 00 0c 00 6c 00 61 00 79 00 6f 00
0000070 75 00 74 00 5f 00 77 00 69 00 64 00 74 00 68 00
0000080 00 00 0d 00 6c 00 61 00 79 00 6f 00 75 00 74 00
0000090 5f 00 68 00 65 00 69 00 67 00 68 00 74 00 00 00
00000a0 04 00 74 00 65 00 78 00 74 00 00 00 07 00 61 00
00000b0 6e 00 64 00 72 00 6f 00 69 00 64 00 00 00 2a 00
00000c0 68 00 74 00 74 00 70 00 3a 00 2f 00 2f 00 73 00
00000d0 63 00 68 00 65 00 6d 00 61 00 73 00 2e 00 61 00
00000e0 6e 00 64 00 72 00 6f 00 69 00 64 00 2e 00 63 00
00000f0 6f 00 6d 00 2f 00 61 00 70 00 6b 00 2f 00 72 00
0000100 65 00 73 00 2f 00 61 00 6e 00 64 00 72 00 6f 00
0000110 69 00 64 00 00 00 00 00 00 00 0c 00 4c 00 69 00
0000120 6e 00 65 00 61 00 72 00 4c 00 61 00 79 00 6f 00
0000130 75 00 74 00 00 00 08 00 54 00 65 00 78 00 74 00
0000140 56 00 69 00 65 00 77 00 00 00 1e 00 48 00 65 00
0000150 6c 00 6c 00 6f 00 20 00 57 00 6f 00 72 00 6c 00
0000160 64 00 2c 00 20 00 50 00 65 00 6e 00 64 00 72 00
0000170 61 00 67 00 6f 00 6e 00 41 00 63 00 74 00 69 00
0000180 76 00 69 00 74 00 79 00 00 00 00 00 80 01 08 00
0000190 18 00 00 00 c4 00 01 01 f4 00 01 01 f5 00 01 01
00001a0 4f 01 01 01 00 01 10 00 18 00 00 00 02 00 00 00
00001b0 ff ff ff ff 04 00 00 00 05 00 00 00 02 01 10 00
00001c0 60 00 00 00 02 00 00 00 ff ff ff ff ff ff ff ff
00001d0 07 00 00 00 14 00 14 00 03 00 00 00 00 00 00 00
00001e0 05 00 00 00 00 00 00 00 ff ff ff ff 08 00 00 10
00001f0 01 00 00 00 05 00 00 00 01 00 00 00 ff ff ff ff
0000200 08 00 00 10 ff ff ff ff 05 00 00 00 02 00 00 00
0000210 ff ff ff ff 08 00 00 10 ff ff ff ff 02 01 10 00
0000220 60 00 00 00 07 00 00 00 ff ff ff ff ff ff ff ff
0000230 08 00 00 00 14 00 14 00 03 00 00 00 00 00 00 00
0000240 05 00 00 00 01 00 00 00 ff ff ff ff 08 00 00 10
0000250 ff ff ff ff 05 00 00 00 02 00 00 00 ff ff ff ff
0000260 08 00 00 10 fe ff ff ff 05 00 00 00 03 00 00 00
0000270 09 00 00 00 08 00 00 03 09 00 00 00 03 01 10 00
0000280 18 00 00 00 0b 00 00 00 ff ff ff ff ff ff ff ff
0000290 08 00 00 00 03 01 10 00 18 00 00 00 0c 00 00 00
00002a0 ff ff ff ff ff ff ff ff 07 00 00 00 01 01 10 00
00002b0 18 00 00 00 0c 00 00 00 ff ff ff ff 04 00 00 00
00002c0 05 00 00 00
00002c4
The bytes in blue are the chunk headers and those in green the chunk bodies.
The Start Namespace chunk starts at 00001a4 and the End Namespace chunk at 00002ac.
2.0 Start And End Namespace Chunks
Start and end namespace chunks represent the scope of a namespace declaration which occurs in the start tag of an element.
If there are multiple declarations in the same start tag then the start namespace chunks for the namespaces appear in the order of the declarations and the end namespace chunks in reverse order.
The chunks which represent the start and end of namespace scopes have the same structure.
3.0 Chunk Header
The chunk header is an instance of the struct ResXMLTree_node.
The header.type field is
-
0x0100(RES_XML_START_NAMESPACE_TYPE) if the chunk represents the start of a Namespace, or -
0x0101(RES_XML_END_NAMESPACE_TYPE) if the chunk represents the end of a Namespace.
The header.headerSize is always 16 (0x0010).
The header.size is always 24 (0x0018).
4.0 Chunk Body
The chunk body is an instance of the following C++ struct (see frameworks/base/include/ResourceTypes.h lines 533-540)
struct ResXMLTree_namespaceExt
{
// The prefix of the namespace.
struct ResStringPool_ref prefix;
// The URI of the namespace.
struct ResStringPool_ref uri;
};
4.1 prefix
The prefix field specifies the XML Namespace prefix as an index into the StringPool of the containing XML chunk.
4.1 uri
The uri field specifies the XML Namespace URI as an index into the StringPool of the containing XML chunk.
5.0 The Example Annotated
5.1 The Start Namespace Chunk
This is an annotated version of the Start Namespace chunk from the example.
...
000001a4 00 01 // type [XML_START_NAMESPACE]
000001a6 10 00 // header size
000001a8 18 00 00 00 // chunk size
--------------------
000001ac 02 00 00 00 // lineNumber
000001b0 ff ff ff ff // comment
++++++++++++++++++++
000001b4 04 00 00 00 // prefix
000001b8 05 00 00 00 // uri
==================== [End of XML_START_NAMESPACE]
...
5.2 The End Namespace Chunk
This is an annotated version of the End Namespace chunk from the example.
...
000002ac 01 01 // type [XML_END_NAMESPACE]
000002ae 10 00 // header size
000002b0 18 00 00 00 // chunk size
--------------------
000002b4 0c 00 00 00 // lineNumber
000002b8 ff ff ff ff // comment
++++++++++++++++++++
000002bc 04 00 00 00 // prefix
000002c0 05 00 00 00 // uri
==================== [End of XML_END_NAMESPACE]
...
Copyright (c) 2011 By Simon Lewis. All Rights Reserved.
