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[3.10] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) by StanFromIreland · Pull Request #146608 · python/cpython

python

@@ -1,4 +1,4 @@ /* fab937ab8b186d7d296013669c332e6dfce2f99567882cff1f8eb24223c524a7 (2.7.4+) /* 93c1caa66e2b0310459482516af05505b57c5cb7b96df777105308fc585c85d1 (2.7.5+) __ __ _ ___\ \/ /_ __ __ _| |_ / _ \\ /| '_ \ / _` | __| Expand Down Expand Up @@ -590,6 +590,8 @@ static XML_Char *poolStoreString(STRING_POOL *pool, const ENCODING *enc, static XML_Bool FASTCALL poolGrow(STRING_POOL *pool); static const XML_Char *FASTCALL poolCopyString(STRING_POOL *pool, const XML_Char *s); static const XML_Char *FASTCALL poolCopyStringNoFinish(STRING_POOL *pool, const XML_Char *s); static const XML_Char *poolCopyStringN(STRING_POOL *pool, const XML_Char *s, int n); static const XML_Char *FASTCALL poolAppendString(STRING_POOL *pool, Expand Down Expand Up @@ -5086,7 +5088,7 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end, } /* If we get this token, we have the start of what might be a normal tag, but not a declaration (i.e. it doesn't begin with "<!"). In a DTD context, that isn't legal. "<!" or "<?"). In a DTD context, that isn't legal. */ else if (tok == XML_TOK_INSTANCE_START) { *nextPtr = next; Expand Down Expand Up @@ -5175,6 +5177,15 @@ entityValueProcessor(XML_Parser parser, const char *s, const char *end, /* found end of entity value - can store it now */ return storeEntityValue(parser, enc, s, end, XML_ACCOUNT_DIRECT, NULL); } /* If we get this token, we have the start of what might be a normal tag, but not a declaration (i.e. it doesn't begin with "<!" or "<?"). In a DTD context, that isn't legal. */ else if (tok == XML_TOK_INSTANCE_START) { *nextPtr = next; return XML_ERROR_SYNTAX; }
start = next; } } Expand Down Expand Up @@ -6789,7 +6800,14 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc, return XML_ERROR_NO_MEMORY; }
const char *next; const char *next = entityTextPtr;
/* Nothing to tokenize. */ if (entityTextPtr >= entityTextEnd) { result = XML_ERROR_NONE; goto endEntityValue; }
for (;;) { next = entityTextPtr; /* XmlEntityValueTok doesn't always set the last arg */ Expand Down Expand Up @@ -7439,16 +7457,24 @@ setContext(XML_Parser parser, const XML_Char *context) { else { if (! poolAppendChar(&parser->m_tempPool, XML_T('\0'))) return XML_FALSE; prefix = (PREFIX *)lookup(parser, &dtd->prefixes, poolStart(&parser->m_tempPool), sizeof(PREFIX)); if (! prefix) const XML_Char *const prefixName = poolCopyStringNoFinish( &dtd->pool, poolStart(&parser->m_tempPool)); if (! prefixName) { return XML_FALSE; if (prefix->name == poolStart(&parser->m_tempPool)) { prefix->name = poolCopyString(&dtd->pool, prefix->name); if (! prefix->name) return XML_FALSE; }
prefix = (PREFIX *)lookup(parser, &dtd->prefixes, prefixName, sizeof(PREFIX));
const bool prefixNameUsed = prefix && prefix->name == prefixName; if (prefixNameUsed) poolFinish(&dtd->pool); else poolDiscard(&dtd->pool);
if (! prefix) return XML_FALSE;
poolDiscard(&parser->m_tempPool); } for (context = s + 1; *context != CONTEXT_SEP && *context != XML_T('\0'); Expand Down Expand Up @@ -8036,6 +8062,23 @@ poolCopyString(STRING_POOL *pool, const XML_Char *s) { return s; }
// A version of `poolCopyString` that does not call `poolFinish` // and reverts any partial advancement upon failure. static const XML_Char *FASTCALL poolCopyStringNoFinish(STRING_POOL *pool, const XML_Char *s) { const XML_Char *const original = s; do { if (! poolAppendChar(pool, *s)) { // Revert any previously successful advancement const ptrdiff_t advancedBy = s - original; if (advancedBy > 0) pool->ptr -= advancedBy; return NULL; } } while (*s++); return pool->start; }
static const XML_Char * poolCopyStringN(STRING_POOL *pool, const XML_Char *s, int n) { if (! pool->ptr && ! poolGrow(pool)) { Expand Down