pgindent run on xml.c in 8.3 branch, per request from Tom.
This commit is contained in:
Bruce Momjian
parent
881a97da86
commit
2193da28b1
@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.68.2.12 2010/03/01 02:21:40 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/xml.c,v 1.68.2.13 2010/03/03 00:32:49 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -100,14 +100,13 @@ static void *xml_palloc(size_t size);
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static void *xml_repalloc(void *ptr, size_t size);
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static void xml_pfree(void *ptr);
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static char *xml_pstrdup(const char *string);
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#endif /* USE_LIBXMLCONTEXT */
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#endif /* USE_LIBXMLCONTEXT */
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static void xml_init(void);
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static xmlChar *xml_text2xmlChar(text *in);
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static int parse_xml_decl(const xmlChar * str, size_t *lenp,
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xmlChar ** version, xmlChar ** encoding, int *standalone);
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static bool print_xml_decl(StringInfo buf, const xmlChar * version,
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static int parse_xml_decl(const xmlChar *str, size_t *lenp,
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xmlChar **version, xmlChar **encoding, int *standalone);
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static bool print_xml_decl(StringInfo buf, const xmlChar *version,
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pg_enc encoding, int standalone);
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static xmlDocPtr xml_parse(text *data, XmlOptionType xmloption_arg,
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bool preserve_whitespace, int encoding);
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@ -636,45 +635,45 @@ xmlelement(XmlExprState *xmlExpr, ExprContext *econtext)
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PG_TRY();
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{
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buf = xmlBufferCreate();
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if (!buf)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate xmlBuffer");
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writer = xmlNewTextWriterMemory(buf, 0);
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if (!writer)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate xmlTextWriter");
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buf = xmlBufferCreate();
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if (!buf)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate xmlBuffer");
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writer = xmlNewTextWriterMemory(buf, 0);
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if (!writer)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate xmlTextWriter");
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xmlTextWriterStartElement(writer, (xmlChar *) xexpr->name);
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xmlTextWriterStartElement(writer, (xmlChar *) xexpr->name);
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forboth(arg, named_arg_strings, narg, xexpr->arg_names)
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{
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char *str = (char *) lfirst(arg);
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char *argname = strVal(lfirst(narg));
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if (str)
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forboth(arg, named_arg_strings, narg, xexpr->arg_names)
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{
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xmlTextWriterWriteAttribute(writer,
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(xmlChar *) argname,
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(xmlChar *) str);
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pfree(str);
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char *str = (char *) lfirst(arg);
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char *argname = strVal(lfirst(narg));
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if (str)
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{
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xmlTextWriterWriteAttribute(writer,
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(xmlChar *) argname,
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(xmlChar *) str);
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pfree(str);
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}
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}
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}
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foreach(arg, arg_strings)
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{
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char *str = (char *) lfirst(arg);
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foreach(arg, arg_strings)
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{
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char *str = (char *) lfirst(arg);
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xmlTextWriterWriteRaw(writer, (xmlChar *) str);
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}
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xmlTextWriterWriteRaw(writer, (xmlChar *) str);
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}
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xmlTextWriterEndElement(writer);
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xmlTextWriterEndElement(writer);
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/* we MUST do this now to flush data out to the buffer ... */
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xmlFreeTextWriter(writer);
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writer = NULL;
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/* we MUST do this now to flush data out to the buffer ... */
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xmlFreeTextWriter(writer);
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writer = NULL;
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result = xmlBuffer_to_xmltype(buf);
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result = xmlBuffer_to_xmltype(buf);
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}
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PG_CATCH();
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{
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@ -934,7 +933,7 @@ xml_init(void)
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resetStringInfo(xml_err_buf);
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/*
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* We re-establish the error callback function every time. This makes
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* We re-establish the error callback function every time. This makes
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* it safe for other subsystems (PL/Perl, say) to also use libxml with
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* their own callbacks ... so long as they likewise set up the
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* callbacks on every use. It's cheap enough to not be worth worrying
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@ -976,7 +975,7 @@ xml_init(void)
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static xmlChar *
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xml_pnstrdup(const xmlChar *str, size_t len)
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{
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xmlChar *result;
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xmlChar *result;
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result = (xmlChar *) palloc((len + 1) * sizeof(xmlChar));
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memcpy(result, str, len * sizeof(xmlChar));
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@ -991,8 +990,8 @@ xml_pnstrdup(const xmlChar *str, size_t len)
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* Result is 0 if OK, an error code if not.
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*/
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static int
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parse_xml_decl(const xmlChar * str, size_t *lenp,
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xmlChar ** version, xmlChar ** encoding, int *standalone)
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parse_xml_decl(const xmlChar *str, size_t *lenp,
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xmlChar **version, xmlChar **encoding, int *standalone)
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{
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const xmlChar *p;
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const xmlChar *save_p;
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@ -1149,7 +1148,7 @@ finished:
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* which is the default version specified in SQL:2003.
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*/
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static bool
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print_xml_decl(StringInfo buf, const xmlChar * version,
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print_xml_decl(StringInfo buf, const xmlChar *version,
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pg_enc encoding, int standalone)
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{
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xml_init(); /* why is this here? */
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@ -1227,51 +1226,51 @@ xml_parse(text *data, XmlOptionType xmloption_arg, bool preserve_whitespace,
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/* Use a TRY block to ensure the ctxt is released */
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PG_TRY();
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{
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if (xmloption_arg == XMLOPTION_DOCUMENT)
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{
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/*
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* Note, that here we try to apply DTD defaults
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* (XML_PARSE_DTDATTR) according to SQL/XML:10.16.7.d: 'Default
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* values defined by internal DTD are applied'. As for external
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* DTDs, we try to support them too, (see SQL/XML:10.16.7.e)
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*/
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doc = xmlCtxtReadDoc(ctxt, utf8string,
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NULL,
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"UTF-8",
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XML_PARSE_NOENT | XML_PARSE_DTDATTR
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| (preserve_whitespace ? 0 : XML_PARSE_NOBLANKS));
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if (doc == NULL)
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xml_ereport(ERROR, ERRCODE_INVALID_XML_DOCUMENT,
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"invalid XML document");
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}
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else
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{
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int res_code;
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size_t count;
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xmlChar *version = NULL;
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int standalone = -1;
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res_code = parse_xml_decl(utf8string,
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&count, &version, NULL, &standalone);
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if (res_code != 0)
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xml_ereport_by_code(ERROR, ERRCODE_INVALID_XML_CONTENT,
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"invalid XML content: invalid XML declaration",
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res_code);
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doc = xmlNewDoc(version);
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Assert(doc->encoding == NULL);
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doc->encoding = xmlStrdup((const xmlChar *) "UTF-8");
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doc->standalone = standalone;
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res_code = xmlParseBalancedChunkMemory(doc, NULL, NULL, 0,
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utf8string + count, NULL);
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if (res_code != 0)
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if (xmloption_arg == XMLOPTION_DOCUMENT)
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{
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xmlFreeDoc(doc);
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xml_ereport(ERROR, ERRCODE_INVALID_XML_CONTENT,
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"invalid XML content");
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/*
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* Note, that here we try to apply DTD defaults
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* (XML_PARSE_DTDATTR) according to SQL/XML:10.16.7.d: 'Default
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* values defined by internal DTD are applied'. As for external
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* DTDs, we try to support them too, (see SQL/XML:10.16.7.e)
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*/
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doc = xmlCtxtReadDoc(ctxt, utf8string,
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NULL,
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"UTF-8",
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XML_PARSE_NOENT | XML_PARSE_DTDATTR
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| (preserve_whitespace ? 0 : XML_PARSE_NOBLANKS));
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if (doc == NULL)
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xml_ereport(ERROR, ERRCODE_INVALID_XML_DOCUMENT,
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"invalid XML document");
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}
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else
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{
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int res_code;
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size_t count;
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xmlChar *version = NULL;
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int standalone = -1;
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res_code = parse_xml_decl(utf8string,
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&count, &version, NULL, &standalone);
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if (res_code != 0)
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xml_ereport_by_code(ERROR, ERRCODE_INVALID_XML_CONTENT,
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"invalid XML content: invalid XML declaration",
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res_code);
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doc = xmlNewDoc(version);
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Assert(doc->encoding == NULL);
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doc->encoding = xmlStrdup((const xmlChar *) "UTF-8");
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doc->standalone = standalone;
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res_code = xmlParseBalancedChunkMemory(doc, NULL, NULL, 0,
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utf8string + count, NULL);
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if (res_code != 0)
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{
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xmlFreeDoc(doc);
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xml_ereport(ERROR, ERRCODE_INVALID_XML_CONTENT,
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"invalid XML content");
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}
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}
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}
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}
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PG_CATCH();
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{
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@ -1355,8 +1354,7 @@ xml_pstrdup(const char *string)
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{
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return MemoryContextStrdup(LibxmlContext, string);
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}
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#endif /* USE_LIBXMLCONTEXT */
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#endif /* USE_LIBXMLCONTEXT */
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/*
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@ -1580,7 +1578,7 @@ map_sql_identifier_to_xml_name(char *ident, bool fully_escaped,
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static char *
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unicode_to_sqlchar(pg_wchar c)
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{
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unsigned char utf8string[5]; /* need room for trailing zero */
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unsigned char utf8string[5]; /* need room for trailing zero */
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char *result;
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memset(utf8string, 0, sizeof(utf8string));
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@ -1610,7 +1608,7 @@ unicode_to_sqlchar(pg_wchar c)
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result = (char *) pg_do_encoding_conversion(utf8string,
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pg_encoding_mblen(PG_UTF8,
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(char *) utf8string),
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(char *) utf8string),
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PG_UTF8,
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GetDatabaseEncoding());
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/* if pg_do_encoding_conversion didn't strdup, we must */
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@ -1806,10 +1804,10 @@ map_sql_value_to_xml_value(Datum value, Oid type)
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if (xmlbinary == XMLBINARY_BASE64)
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xmlTextWriterWriteBase64(writer, VARDATA_ANY(bstr),
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0, VARSIZE_ANY_EXHDR(bstr));
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0, VARSIZE_ANY_EXHDR(bstr));
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else
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xmlTextWriterWriteBinHex(writer, VARDATA_ANY(bstr),
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0, VARSIZE_ANY_EXHDR(bstr));
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0, VARSIZE_ANY_EXHDR(bstr));
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/* we MUST do this now to flush data out to the buffer */
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xmlFreeTextWriter(writer);
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@ -3411,7 +3409,7 @@ xpath(PG_FUNCTION_ARGS)
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xpath_expr = (xmlChar *) palloc((xpath_len + 5) * sizeof(xmlChar));
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memcpy (string, datastr, len);
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memcpy(string, datastr, len);
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string[len] = '\0';
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xml_init();
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@ -3419,146 +3417,149 @@ xpath(PG_FUNCTION_ARGS)
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PG_TRY();
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{
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/*
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* redundant XML parsing (two parsings for the same value during one
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* command execution are possible)
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*/
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ctxt = xmlNewParserCtxt();
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if (ctxt == NULL)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate parser context");
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doc = xmlCtxtReadMemory(ctxt, (char *) string, len, NULL, NULL, 0);
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if (doc == NULL || xmlDocGetRootElement(doc) == NULL)
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{
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/*
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* In case we have a fragment rather than a well-formed XML document,
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* which has a single root (XML well-formedness), we try again after
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* transforming the xml by stripping away the XML prolog, if any, and
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* wrapping the remainder in a dummy element (<x>...</x>),
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* and later extending the XPath expression accordingly.
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* redundant XML parsing (two parsings for the same value during one
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* command execution are possible)
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*/
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if (len >= 5 &&
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xmlStrncmp((xmlChar *) datastr, (xmlChar *) "<?xml", 5) == 0)
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{
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i = 5;
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while (i < len &&
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!(datastr[i - 1] == '?' && datastr[i] == '>'))
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i++;
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if (i == len)
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xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
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"could not parse XML data");
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++i;
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datastr += i;
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len -= i;
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}
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memcpy(string, "<x>", 3);
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memcpy(string + 3, datastr, len);
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memcpy(string + 3 + len, "</x>", 5);
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len += 7;
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ctxt = xmlNewParserCtxt();
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if (ctxt == NULL)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate parser context");
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doc = xmlCtxtReadMemory(ctxt, (char *) string, len, NULL, NULL, 0);
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if (doc == NULL)
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xml_ereport(ERROR, ERRCODE_INVALID_XML_DOCUMENT,
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"could not parse XML data");
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/* we already know xpath_len > 0 - see above , so this test is safe */
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if (*VARDATA(xpath_expr_text) == '/')
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if (doc == NULL || xmlDocGetRootElement(doc) == NULL)
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{
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memcpy(xpath_expr, "/x", 2);
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memcpy(xpath_expr + 2, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len + 2] = '\0';
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xpath_len += 2;
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/*
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* In case we have a fragment rather than a well-formed XML
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* document, which has a single root (XML well-formedness), we try
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* again after transforming the xml by stripping away the XML
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* prolog, if any, and wrapping the remainder in a dummy element
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* (<x>...</x>), and later extending the XPath expression
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* accordingly.
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*/
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if (len >= 5 &&
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xmlStrncmp((xmlChar *) datastr, (xmlChar *) "<?xml", 5) == 0)
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{
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i = 5;
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while (i < len &&
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!(datastr[i - 1] == '?' && datastr[i] == '>'))
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i++;
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if (i == len)
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xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
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"could not parse XML data");
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++i;
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datastr += i;
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len -= i;
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}
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memcpy(string, "<x>", 3);
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memcpy(string + 3, datastr, len);
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memcpy(string + 3 + len, "</x>", 5);
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len += 7;
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doc = xmlCtxtReadMemory(ctxt, (char *) string, len, NULL, NULL, 0);
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if (doc == NULL)
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xml_ereport(ERROR, ERRCODE_INVALID_XML_DOCUMENT,
|
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"could not parse XML data");
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|
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/*
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* we already know xpath_len > 0 - see above , so this test is
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* safe
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*/
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if (*VARDATA(xpath_expr_text) == '/')
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{
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memcpy(xpath_expr, "/x", 2);
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memcpy(xpath_expr + 2, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len + 2] = '\0';
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xpath_len += 2;
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}
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else
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{
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memcpy(xpath_expr, "/x//", 4);
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memcpy(xpath_expr + 4, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len + 4] = '\0';
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xpath_len += 4;
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}
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}
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else
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{
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memcpy(xpath_expr, "/x//", 4);
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memcpy(xpath_expr + 4, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len + 4] = '\0';
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xpath_len += 4;
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/*
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* if we didn't need to mangle the XML, we don't need to mangle
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* the xpath either.
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*/
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memcpy(xpath_expr, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len] = '\0';
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}
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}
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else
|
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{
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/*
|
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* if we didn't need to mangle the XML, we don't need to mangle the
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* xpath either.
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*/
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memcpy(xpath_expr, VARDATA(xpath_expr_text), xpath_len);
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xpath_expr[xpath_len] = '\0';
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}
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xpathctx = xmlXPathNewContext(doc);
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if (xpathctx == NULL)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
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"could not allocate XPath context");
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xpathctx->node = xmlDocGetRootElement(doc);
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if (xpathctx->node == NULL)
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xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
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"could not find root XML element");
|
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xpathctx = xmlXPathNewContext(doc);
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if (xpathctx == NULL)
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xml_ereport(ERROR, ERRCODE_OUT_OF_MEMORY,
|
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"could not allocate XPath context");
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xpathctx->node = xmlDocGetRootElement(doc);
|
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if (xpathctx->node == NULL)
|
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xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
|
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"could not find root XML element");
|
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|
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/* register namespaces, if any */
|
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if (ns_count > 0)
|
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{
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for (i = 0; i < ns_count; i++)
|
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/* register namespaces, if any */
|
||||
if (ns_count > 0)
|
||||
{
|
||||
char *ns_name;
|
||||
char *ns_uri;
|
||||
for (i = 0; i < ns_count; i++)
|
||||
{
|
||||
char *ns_name;
|
||||
char *ns_uri;
|
||||
|
||||
if (ns_names_uris_nulls[i * 2] ||
|
||||
ns_names_uris_nulls[i * 2 + 1])
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
|
||||
errmsg("neither namespace name nor URI may be null")));
|
||||
ns_name = _textout(ns_names_uris[i * 2]);
|
||||
ns_uri = _textout(ns_names_uris[i * 2 + 1]);
|
||||
if (xmlXPathRegisterNs(xpathctx,
|
||||
(xmlChar *) ns_name,
|
||||
(xmlChar *) ns_uri) != 0)
|
||||
ereport(ERROR, /* is this an internal error??? */
|
||||
(errmsg("could not register XML namespace with name \"%s\" and URI \"%s\"",
|
||||
ns_name, ns_uri)));
|
||||
if (ns_names_uris_nulls[i * 2] ||
|
||||
ns_names_uris_nulls[i * 2 + 1])
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
|
||||
errmsg("neither namespace name nor URI may be null")));
|
||||
ns_name = _textout(ns_names_uris[i * 2]);
|
||||
ns_uri = _textout(ns_names_uris[i * 2 + 1]);
|
||||
if (xmlXPathRegisterNs(xpathctx,
|
||||
(xmlChar *) ns_name,
|
||||
(xmlChar *) ns_uri) != 0)
|
||||
ereport(ERROR, /* is this an internal error??? */
|
||||
(errmsg("could not register XML namespace with name \"%s\" and URI \"%s\"",
|
||||
ns_name, ns_uri)));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
xpathcomp = xmlXPathCompile(xpath_expr);
|
||||
if (xpathcomp == NULL) /* TODO: show proper XPath error details */
|
||||
xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
|
||||
"invalid XPath expression");
|
||||
xpathcomp = xmlXPathCompile(xpath_expr);
|
||||
if (xpathcomp == NULL) /* TODO: show proper XPath error details */
|
||||
xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
|
||||
"invalid XPath expression");
|
||||
|
||||
xpathobj = xmlXPathCompiledEval(xpathcomp, xpathctx);
|
||||
if (xpathobj == NULL) /* TODO: reason? */
|
||||
xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
|
||||
"could not create XPath object");
|
||||
xpathobj = xmlXPathCompiledEval(xpathcomp, xpathctx);
|
||||
if (xpathobj == NULL) /* TODO: reason? */
|
||||
xml_ereport(ERROR, ERRCODE_INTERNAL_ERROR,
|
||||
"could not create XPath object");
|
||||
|
||||
/* return empty array in cases when nothing is found */
|
||||
if (xpathobj->nodesetval == NULL)
|
||||
res_nitems = 0;
|
||||
else
|
||||
res_nitems = xpathobj->nodesetval->nodeNr;
|
||||
/* return empty array in cases when nothing is found */
|
||||
if (xpathobj->nodesetval == NULL)
|
||||
res_nitems = 0;
|
||||
else
|
||||
res_nitems = xpathobj->nodesetval->nodeNr;
|
||||
|
||||
if (res_nitems)
|
||||
{
|
||||
for (i = 0; i < xpathobj->nodesetval->nodeNr; i++)
|
||||
if (res_nitems)
|
||||
{
|
||||
Datum elem;
|
||||
bool elemisnull = false;
|
||||
for (i = 0; i < xpathobj->nodesetval->nodeNr; i++)
|
||||
{
|
||||
Datum elem;
|
||||
bool elemisnull = false;
|
||||
|
||||
elem = PointerGetDatum(xml_xmlnodetoxmltype(xpathobj->nodesetval->nodeTab[i]));
|
||||
astate = accumArrayResult(astate, elem,
|
||||
elemisnull, XMLOID,
|
||||
CurrentMemoryContext);
|
||||
elem = PointerGetDatum(xml_xmlnodetoxmltype(xpathobj->nodesetval->nodeTab[i]));
|
||||
astate = accumArrayResult(astate, elem,
|
||||
elemisnull, XMLOID,
|
||||
CurrentMemoryContext);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
PG_CATCH();
|
||||
{
|
||||
if (xpathobj)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user