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For https://bugzilla.gnome.org/show_bug.cgi?id=689483
It seems there are functions that do use the const qualifier for some of the
arguments, but it seems that there are a lot of functions that don't use it and
probably should.
So I created a patch against 2.9.0 that makes as much as possible const in
tree.h, and changed other files as needed.
There were a lot of cases like "const xmlNodePtr node". This doesn't actually
do anything, there the *pointer* is constant not the object it points to. So I
changed those to "const xmlNode *node".
I also removed some consts, mostly in the Copy functions, because those
functions can actually modify the doc or node they copy from
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As suggested by Andrew W. Nosenko:
Proposal: expose the new xmlBufShrink() to the "public" API for
compatibility with xmlBufUse().
Reason: the following scenario:
1. Read something into xmlParserInputBuffer (e.g. using
xmlParserInputBufferRead())
2. Extract content through xmlBufContent()
3. Extract content length through xmlBufUse(). Result have type
'size_t'.
4. Use this content
5. Now, you need to shrink the buffer. How to do it? Doing that
through legacy xmlBufferShrink() is unsafe because it uses 'unsigned
int' and the whole point of introducing the new API was handling the
cases, when 'unsigned int' is not enough. Therefore, need to use the
new xmlBufShrink(). But it is "private".
Therefore, I propose to expose the new xmlBufShrink() in the same way,
as xmlBufContent() and xmlBufUse() are exposed.
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Various cleanups
* configure.in: force regeneration of APIs in my environment
* buf.c buf.h enc.h encoding.c include/libxml/tree.h
include/libxml/xmlerror.h save.h tree.c: various comment cleanups
pointed by apibuild
* doc/apibuild.py: added the 3 new internal headers in the excludes
* doc/libxml2-api.xml doc/libxml2-refs.xml: regenerated the API
* doc/symbols.xml: listing new entry points for 2.9.0
* doc/devhelp/*: regenerated
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Now tree.h exports LIBXML2_NEW_BUFFER macro indicating that the
API uses the new buffers, important to keep code working with
both versions.
* tree.h buf.h: also export xmlBufContent(), xmlBufEnd(), and xmlBufUse()
to help port the old code
* buf.c: make sure the compatibility counters are updated on
buffer usage, to keep proper working of application compiled
against the old structures, but take care of int overflow
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When calling xmlParserInputBufferPush, the buffer may be reallocated
and at the input level the pointers for base, cur and end need to
be reevaluated.
* buf.c buf.h: add two new functions, one to get the base from the
input of the buffer, and another one to reset the pointers based
on the cur and base inded
* HTMLparser.c parser.c: cleanup to use the new helper functions
as well as making sure size_t is used for the indexes computations
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This was scattered in a number of modules, xmlParserInputPtr
have usually their base, cur and end pointer set from an
xmlBuf used as input.
* buf.c buf.h: add a new function implementing this setup
* parser.c HTMLparser.c catalog.c parserInternals.c xmlreader.c
use the new function instead of digging into the buffer in
all those modules
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This also add converter functions between xmlBuf and xmlBuffer
* buf.c buf.h: the old xmlBuffer routines but modified for size_t
and using xmlBuf instead of xmlBuffer
* Makefile.am: add the 2 new files
* include/libxml/xmlerror.h: add an entry for the new module
* include/libxml/tree.h: expose the xmlBufPtr type but not the
structure which stay private
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