--- parser3/src/classes/Attic/dnode.C 2001/09/18 12:25:06 1.1 +++ parser3/src/classes/Attic/dnode.C 2001/09/18 16:05:42 1.2 @@ -5,7 +5,7 @@ Author: Alexander Petrosyan (http://design.ru/paf) */ -static const char *RCSId="$Id: dnode.C,v 1.1 2001/09/18 12:25:06 parser Exp $"; +static const char *RCSId="$Id: dnode.C,v 1.2 2001/09/18 16:05:42 parser Exp $"; #if _MSC_VER # pragma warning(disable:4291) // disable warning @@ -15,6 +15,8 @@ static const char *RCSId="$Id: dnode.C,v #include "classes.h" #include "pa_request.h" #include "pa_vdnode.h" +#include "pa_vfile.h" + #include "dnode.h" #include @@ -22,19 +24,208 @@ static const char *RCSId="$Id: dnode.C,v #include #include #include +#include +#include +#include +#include +#include +#include +#include // defines #define DNODE_CLASS_NAME "dnode" +#define DOM_OUTPUT_METHOD_OPTION_NAME "method" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_XML "xml" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "html" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "text" + +#define DOM_OUTPUT_ENCODING_OPTION_NAME "encoding" + +#define DOM_OUTPUT_DEFAULT_INDENT 4 + // class // methods +class ParserStringXalanOutputStream: public XalanOutputStream { +public: + + explicit ParserStringXalanOutputStream(String& astring) : fstring(astring) {} + +protected: // XalanOutputStream + + virtual void writeData(const char *theBuffer, unsigned long theBufferLength) { + char *copy=(char *)fstring.malloc((size_t)theBufferLength); + memcpy(copy, theBuffer, (size_t)theBufferLength); + fstring.APPEND_CLEAN(copy, (size_t)theBufferLength, "dom", -1); + } + + virtual void doFlush() {} + +private: + + String& fstring; + +}; + +static void create_optioned_listener( + const char *& content_type, const char *& charset, FormatterListener *& listener, + Pool& pool, + const String& method_name, MethodParams *params, int index, Writer& writer) { + charset=0; + const String *method=0; + XalanDOMString xalan_encoding; + + Value& voptions=params->as_no_junction(index, "options must not be code"); + if(voptions.is_defined()) { + if(Hash *options=voptions.get_hash()) { + // $.method[xml|html|text] + if(Value *vmethod=static_cast(options->get(*new(pool) + String(pool, DOM_OUTPUT_METHOD_OPTION_NAME)))) + method=&vmethod->as_string(); + + // $.encoding[windows-1251|...] + if(Value *vencoding=static_cast(options->get(*new(pool) + String(pool, DOM_OUTPUT_ENCODING_OPTION_NAME)))) { + charset=vencoding->as_string().cstr(); + xalan_encoding.append(charset, strlen(charset)); + } + } else + PTHROW(0, 0, + &method_name, + "options must be hash"); + } + + if(!method/*default='xml'*/ || *method == DOM_OUTPUT_METHOD_OPTION_VALUE_XML) { + content_type="text/xml"; + listener=new FormatterToXML(writer, + XalanDOMString(), // version + true, // doIndent + DOM_OUTPUT_DEFAULT_INDENT, // indent + xalan_encoding // encoding + ); + } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_HTML) { + content_type="text/html"; + listener=new FormatterToHTML(writer, + xalan_encoding, // encoding + XalanDOMString(), // mediaType + XalanDOMString(), // doctypeSystem; String to be printed at the top of the document + XalanDOMString(), // doctypePublic + true, // doIndent + DOM_OUTPUT_DEFAULT_INDENT // indent + ); + } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT) { + content_type="text/plain"; + listener=new FormatterToText(writer, + xalan_encoding // encoding + ); + } else + PTHROW(0, 0, + method, + DOM_OUTPUT_METHOD_OPTION_NAME " option is invalid; valid methods are: " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_XML "', " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "', " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "'"); + + // never reached +} + +static void _save(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDnode& vnode=*static_cast(r.self); + + // filespec + const String& file_name=params->as_string(1, "file name must not be code"); + const char *filespec=r.absolute(file_name).cstr(String::UL_FILE_SPEC); + + // node + XalanNode& node=vnode.get_node(pool, &method_name); + + try { + XalanFileOutputStream stream(XalanDOMString(filespec, strlen(filespec))); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&node); // Walk that node and produce the XML... + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + +static void _string(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDnode& vnode=*static_cast(r.self); + + // node + XalanNode& node=vnode.get_node(pool, &method_name); + + try { + String parserString=*new(pool) String(pool); + ParserStringXalanOutputStream stream(parserString); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&node); // Walk that node and produce the XML... + + // write out result + r.write_no_lang(parserString); + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + + +static void _file(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDnode& vnode=*static_cast(r.self); + + // node + XalanNode& node=vnode.get_node(pool, &method_name); + + try { + String& parserString=*new(pool) String(pool); + ParserStringXalanOutputStream stream(parserString); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&node); // Walk that node and produce the XML... + + // write out result + VFile& vfile=*new(pool) VFile(pool); + const char *cstr=parserString.cstr(); + String *scontent_type=new(pool) String(pool, content_type); + Value *vcontent_type; + if(charset) { + VHash *vhcontent_type=new(pool) VHash(pool); + vhcontent_type->hash().put(*value_name, new(pool) VString(*scontent_type)); + String *scharset=new(pool) String(pool, charset); + vhcontent_type->hash().put(*new(pool) String(pool, "charset"), new(pool) VString(*scharset)); + vcontent_type=vhcontent_type; + } else + vcontent_type=new(pool) VString(*scontent_type); + vfile.set(false/*tainted*/, cstr, strlen(cstr), 0/*file_name*/, vcontent_type); + r.write_no_lang(vfile); + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + + static void _xpath(Request& r, const String& method_name, MethodParams *params) { // _asm int 3; Pool& pool=r.pool(); - VDnode& vdnode=*static_cast(r.self); + VDnode& vnode=*static_cast(r.self); // expression const String& expression=params->as_string(0, "expression must not be code"); @@ -50,7 +241,7 @@ static void _xpath(Request& r, const Str try { NodeRefList list=evaluator.selectNodeList(dom_support, - &vdnode.get_node(pool, &method_name), + &vnode.get_node(pool, &method_name), expression_dcstr); VHash& result=*new(pool) VHash(pool); @@ -76,6 +267,15 @@ static void _xpath(Request& r, const Str MDnode::MDnode(Pool& apool) : Methoded(apool) { set_name(*NEW String(pool(), DNODE_CLASS_NAME)); + // ^node.save[options hash;some.xml] + add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2); + + // ^node.string[options hash] + add_native_method("string", Method::CT_DYNAMIC, _string, 1, 1); + + // ^node.file[options hash] file with "" + add_native_method("file", Method::CT_DYNAMIC, _file, 1, 1); + // ^node.xpath[/some/xpath/query] add_native_method("xpath", Method::CT_DYNAMIC, _xpath, 1, 1);