Improvements for old buffer compatibility

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
3 files changed
tree: 7e1485d3fd374d6c626b5471cce69c27da0960f6
  1. bakefile/
  2. doc/
  3. example/
  4. include/
  5. macos/
  6. optim/
  7. python/
  8. result/
  9. test/
  10. vms/
  11. VxWorks/
  12. win32/
  13. xstc/
  14. .cvsignore
  15. .gitignore
  16. acinclude.m4
  17. AUTHORS
  18. autogen.sh
  19. buf.c
  20. buf.h
  21. build_glob.py
  22. c14n.c
  23. catalog.c
  24. ChangeLog
  25. check-relaxng-test-suite.py
  26. check-relaxng-test-suite2.py
  27. check-xinclude-test-suite.py
  28. check-xml-test-suite.py
  29. check-xsddata-test-suite.py
  30. chvalid.c
  31. chvalid.def
  32. configure.in
  33. Copyright
  34. dbgen.pl
  35. dbgenattr.pl
  36. debugXML.c
  37. dict.c
  38. DOCBparser.c
  39. elfgcchack.h
  40. enc.h
  41. encoding.c
  42. entities.c
  43. error.c
  44. genChRanges.py
  45. gentest.py
  46. genUnicode.py
  47. global.data
  48. globals.c
  49. HACKING
  50. hash.c
  51. HTMLparser.c
  52. HTMLtree.c
  53. INSTALL.libxml2
  54. legacy.c
  55. libxml-2.0-uninstalled.pc.in
  56. libxml-2.0.pc.in
  57. libxml.3
  58. libxml.h
  59. libxml.m4
  60. libxml.spec.in
  61. libxml2.doap
  62. libxml2.syms
  63. list.c
  64. MAINTAINERS
  65. Makefile.am
  66. Makefile.tests
  67. Makefile.win
  68. nanoftp.c
  69. nanohttp.c
  70. NEWS
  71. parser.c
  72. parserInternals.c
  73. pattern.c
  74. README
  75. README.cvs-commits
  76. README.tests
  77. regressions.py
  78. regressions.xml
  79. relaxng.c
  80. rngparser.c
  81. runsuite.c
  82. runtest.c
  83. runxmlconf.c
  84. save.h
  85. SAX.c
  86. SAX2.c
  87. schematron.c
  88. testapi.c
  89. testAutomata.c
  90. testC14N.c
  91. testchar.c
  92. testdict.c
  93. testdso.c
  94. testHTML.c
  95. testlimits.c
  96. testModule.c
  97. testOOM.c
  98. testOOMlib.c
  99. testOOMlib.h
  100. testReader.c
  101. testrecurse.c
  102. testRegexp.c
  103. testRelax.c
  104. testSAX.c
  105. testSchemas.c
  106. testThreads.c
  107. testThreadsWin32.c
  108. testURI.c
  109. testXPath.c
  110. threads.c
  111. TODO
  112. TODO_SCHEMAS
  113. tree.c
  114. trio.c
  115. trio.h
  116. triodef.h
  117. trionan.c
  118. trionan.h
  119. triop.h
  120. triostr.c
  121. triostr.h
  122. uri.c
  123. valid.c
  124. xinclude.c
  125. xlink.c
  126. xml2-config.1
  127. xml2-config.in
  128. xml2Conf.sh.in
  129. xmlcatalog.c
  130. xmlIO.c
  131. xmllint.c
  132. xmlmemory.c
  133. xmlmodule.c
  134. xmlreader.c
  135. xmlregexp.c
  136. xmlsave.c
  137. xmlschemas.c
  138. xmlschemastypes.c
  139. xmlstring.c
  140. xmlunicode.c
  141. xmlwriter.c
  142. xpath.c
  143. xpointer.c
  144. xzlib.c
  145. xzlib.h