[libxml2] Mark more parser functions as deprecated

[Nick Wellnhofer <nwellnhof src gnome org>]

commit fd85b566f7343c57381f5f7bfac33ce3ab07c13f
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Wed Aug 24 15:12:24 2022 +0200

    Mark more parser functions as deprecated
    
    No compiler warnings generated yet.

 parser.c          |  4 ++++
 parserInternals.c | 17 ++++++++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)
---
diff --git a/parser.c b/parser.c
index 9a162fe7..73ff5bc1 100644
--- a/parser.c
+++ b/parser.c
@@ -12745,6 +12745,8 @@ xmlIOParseDTD(xmlSAXHandlerPtr sax, xmlParserInputBufferPtr input,
  * @ExternalID:  a NAME* containing the External ID of the DTD
  * @SystemID:  a NAME* containing the URL to the DTD
  *
+ * DEPRECATED: Don't use.
+ *
  * Load and parse an external subset.
  *
  * Returns the resulting xmlDtdPtr or NULL in case of error.
@@ -13797,6 +13799,8 @@ xmlParseBalancedChunkMemoryRecover(xmlDocPtr doc, xmlSAXHandlerPtr sax,
  * @sax:  the SAX handler block
  * @filename:  the filename
  *
+ * DEPRECATED: Don't use.
+ *
  * parse an XML external entity out of context and build a tree.
  * It use the given SAX function block to handle the parsing callback.
  * If sax is NULL, fallback to the default DOM tree building routines.
diff --git a/parserInternals.c b/parserInternals.c
index 7e3126c9..56fdcb72 100644
--- a/parserInternals.c
+++ b/parserInternals.c
@@ -260,7 +260,7 @@ void check_buffer(xmlParserInputPtr in) {
  * @in:  an XML parser input
  * @len:  an indicative size for the lookahead
  *
- * This function was internal and is deprecated.
+ * DEPRECATED: This function was internal and is deprecated.
  *
  * Returns -1 as this is an error to use it.
  */
@@ -274,6 +274,8 @@ xmlParserInputRead(xmlParserInputPtr in ATTRIBUTE_UNUSED, int len ATTRIBUTE_UNUS
  * @in:  an XML parser input
  * @len:  an indicative size for the lookahead
  *
+ * DEPRECATED: Don't use.
+ *
  * This function increase the input for the parser. It tries to
  * preserve pointers to the input buffer, and keep already read data
  *
@@ -1811,6 +1813,8 @@ xmlClearParserCtxt(xmlParserCtxtPtr ctxt)
  * @ctx:  an XML parser context
  * @node:  an XML node within the tree
  *
+ * DEPRECATED: Don't use.
+ *
  * Find the parser node info struct for a given node
  *
  * Returns an xmlParserNodeInfo block pointer or NULL
@@ -1836,6 +1840,8 @@ xmlParserFindNodeInfo(const xmlParserCtxtPtr ctx, const xmlNodePtr node)
  * xmlInitNodeInfoSeq:
  * @seq:  a node info sequence pointer
  *
+ * DEPRECATED: Don't use.
+ *
  * -- Initialize (set to initial state) node info sequence
  */
 void
@@ -1852,6 +1858,8 @@ xmlInitNodeInfoSeq(xmlParserNodeInfoSeqPtr seq)
  * xmlClearNodeInfoSeq:
  * @seq:  a node info sequence pointer
  *
+ * DEPRECATED: Don't use.
+ *
  * -- Clear (release memory and reinitialize) node
  *   info sequence
  */
@@ -1870,6 +1878,7 @@ xmlClearNodeInfoSeq(xmlParserNodeInfoSeqPtr seq)
  * @seq:  a node info sequence pointer
  * @node:  an XML node pointer
  *
+ * DEPRECATED: Don't use.
  *
  * xmlParserFindNodeInfoIndex : Find the index that the info record for
  *   the given node is or should be at in a sorted sequence
@@ -1913,6 +1922,8 @@ xmlParserFindNodeInfoIndex(const xmlParserNodeInfoSeqPtr seq,
  * @ctxt:  an XML parser context
  * @info:  a node info sequence pointer
  *
+ * DEPRECATED: Don't use.
+ *
  * Insert node info record into the sorted sequence
  */
 void
@@ -1983,6 +1994,8 @@ xmlParserAddNodeInfo(xmlParserCtxtPtr ctxt,
  * xmlPedanticParserDefault:
  * @val:  int 0 or 1
  *
+ * DEPRECATED: Use the modern options API with XML_PARSE_PEDANTIC.
+ *
  * Set and return the previous value for enabling pedantic warnings.
  *
  * Returns the last value for 0 for no substitution, 1 for substitution.
@@ -2018,6 +2031,8 @@ xmlLineNumbersDefault(int val) {
  * xmlSubstituteEntitiesDefault:
  * @val:  int 0 or 1
  *
+ * DEPRECATED: Use the modern options API with XML_PARSE_NOENT.
+ *
  * Set and return the previous value for default entity support.
  * Initially the parser always keep entity references instead of substituting
  * entity values in the output. This function has to be used to change the