Annotation of parser3/src/classes/dom.C, revision 1.27
1.2 parser 1: /** @file
2: Parser: @b dom parser class.
3:
4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
5:
6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
7: */
1.27 ! parser 8: static const char *RCSId="$Id: dom.C,v 1.26 2001/09/20 07:31:51 parser Exp $";
1.2 parser 9:
10: #if _MSC_VER
11: # pragma warning(disable:4291) // disable warning
12: // "no matching operator delete found; memory will not be freed if initialization throws an exception
13: #endif
14:
15: #include "classes.h"
16: #include "pa_request.h"
17: #include "pa_vdom.h"
1.20 parser 18: #include "pa_xslt_stylesheet_manager.h"
19: #include "pa_stylesheet_connection.h"
1.26 parser 20: #include "pa_vfile.h"
1.23 parser 21: #include "dnode.h"
1.2 parser 22:
1.16 parser 23: #include <strstream>
1.2 parser 24: #include <Include/PlatformDefinitions.hpp>
25: #include <util/PlatformUtils.hpp>
26: #include <XalanTransformer/XalanTransformer.hpp>
1.4 parser 27: #include <XalanTransformer/XalanParsedSource.hpp>
1.26 parser 28: #include <XMLSupport/FormatterToXML.hpp>
29: #include <XMLSupport/FormatterToHTML.hpp>
30: #include <XMLSupport/FormatterToText.hpp>
31: #include <XMLSupport/FormatterTreeWalker.hpp>
32: #include <PlatformSupport/XalanFileOutputStream.hpp>
33: #include <PlatformSupport/XalanOutputStreamPrintWriter.hpp>
34: #include <PlatformSupport/DOMStringPrintWriter.hpp>
1.6 parser 35:
1.2 parser 36: // defines
37:
1.4 parser 38: #define DOM_CLASS_NAME "dom"
1.2 parser 39:
1.26 parser 40: #define DOM_OUTPUT_METHOD_OPTION_NAME "method"
41: #define DOM_OUTPUT_METHOD_OPTION_VALUE_XML "xml"
42: #define DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "html"
43: #define DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "text"
44:
45: #define DOM_OUTPUT_ENCODING_OPTION_NAME "encoding"
46:
47: #define DOM_OUTPUT_DEFAULT_INDENT 4
48:
1.2 parser 49: // class
50:
1.24 parser 51: class MDom : public MDnode {
1.2 parser 52: public: // VStateless_class
1.11 parser 53: Value *create_new_value(Pool& pool) { return new(pool) VDom(pool); }
1.2 parser 54:
55: public:
56: MDom(Pool& pool);
57:
58: public: // Methoded
59: bool used_directly() { return true; }
60: };
61:
62: // methods
63:
1.26 parser 64: class ParserStringXalanOutputStream: public XalanOutputStream {
65: public:
66:
67: explicit ParserStringXalanOutputStream(String& astring) : fstring(astring) {}
68:
69: protected: // XalanOutputStream
70:
71: virtual void writeData(const char *theBuffer, unsigned long theBufferLength) {
72: char *copy=(char *)fstring.malloc((size_t)theBufferLength);
73: memcpy(copy, theBuffer, (size_t)theBufferLength);
74: fstring.APPEND_CLEAN(copy, (size_t)theBufferLength, "dom", -1);
75: }
76:
77: virtual void doFlush() {}
78:
79: private:
80:
81: String& fstring;
82:
83: };
84:
85: static void create_optioned_listener(
86: const char *& content_type, const char *& charset, FormatterListener *& listener,
87: Pool& pool,
88: const String& method_name, MethodParams *params, int index, Writer& writer) {
89: charset=0;
90: const String *method=0;
91: XalanDOMString xalan_encoding;
92:
1.27 ! parser 93: if(params->size()>index) {
! 94: Value& voptions=params->as_no_junction(index, "options must not be code");
! 95: if(voptions.is_defined()) {
! 96: if(Hash *options=voptions.get_hash()) {
! 97: // $.method[xml|html|text]
! 98: if(Value *vmethod=static_cast<Value *>(options->get(*new(pool)
! 99: String(pool, DOM_OUTPUT_METHOD_OPTION_NAME))))
! 100: method=&vmethod->as_string();
! 101:
! 102: // $.encoding[windows-1251|...]
! 103: if(Value *vencoding=static_cast<Value *>(options->get(*new(pool)
! 104: String(pool, DOM_OUTPUT_ENCODING_OPTION_NAME)))) {
! 105: charset=vencoding->as_string().cstr();
! 106: xalan_encoding.append(charset, strlen(charset));
! 107: }
! 108: } else
! 109: PTHROW(0, 0,
! 110: &method_name,
! 111: "options must be hash");
! 112: }
1.26 parser 113: }
114:
115: if(!method/*default='xml'*/ || *method == DOM_OUTPUT_METHOD_OPTION_VALUE_XML) {
116: content_type="text/xml";
117: listener=new FormatterToXML(writer,
118: XalanDOMString(), // version
119: true, // doIndent
120: DOM_OUTPUT_DEFAULT_INDENT, // indent
121: xalan_encoding // encoding
122: );
123: } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_HTML) {
124: content_type="text/html";
125: listener=new FormatterToHTML(writer,
126: xalan_encoding, // encoding
127: XalanDOMString(), // mediaType
128: XalanDOMString(), // doctypeSystem; String to be printed at the top of the document
129: XalanDOMString(), // doctypePublic
130: true, // doIndent
131: DOM_OUTPUT_DEFAULT_INDENT // indent
132: );
133: } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT) {
134: content_type="text/plain";
135: listener=new FormatterToText(writer,
136: xalan_encoding // encoding
137: );
138: } else
139: PTHROW(0, 0,
140: method,
141: DOM_OUTPUT_METHOD_OPTION_NAME " option is invalid; valid methods are: "
142: "'" DOM_OUTPUT_METHOD_OPTION_VALUE_XML "', "
143: "'" DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "', "
144: "'" DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "'");
145:
146: // never reached
147: }
148:
149: static void _save(Request& r, const String& method_name, MethodParams *params) {
150: Pool& pool=r.pool();
151: VDnode& vnode=*static_cast<VDnode *>(r.self);
152:
153: // filespec
1.27 ! parser 154: const String& file_name=params->as_string(0, "file name must not be code");
1.26 parser 155: const char *filespec=r.absolute(file_name).cstr(String::UL_FILE_SPEC);
156:
157: // node
158: XalanNode& node=vnode.get_node(pool, &method_name);
159:
160: try {
161: XalanFileOutputStream stream(XalanDOMString(filespec, strlen(filespec)));
162: XalanOutputStreamPrintWriter writer(stream);
163: const char *content_type, *charset;
164: FormatterListener *formatterListener;
165: create_optioned_listener(content_type, charset, formatterListener,
1.27 ! parser 166: pool, method_name, params, 1, writer);
1.26 parser 167: FormatterTreeWalker treeWalker(*formatterListener);
168: treeWalker.traverse(&node); // Walk that node and produce the XML...
169: } catch(const XSLException& e) {
170: _throw(pool, &method_name, e);
171: }
172: }
173:
174: static void _string(Request& r, const String& method_name, MethodParams *params) {
175: Pool& pool=r.pool();
176: VDnode& vnode=*static_cast<VDnode *>(r.self);
177:
178: // node
179: XalanNode& node=vnode.get_node(pool, &method_name);
180:
181: try {
182: String parserString=*new(pool) String(pool);
183: ParserStringXalanOutputStream stream(parserString);
184: XalanOutputStreamPrintWriter writer(stream);
185: const char *content_type, *charset;
186: FormatterListener *formatterListener;
187: create_optioned_listener(content_type, charset, formatterListener,
188: pool, method_name, params, 0, writer);
189: FormatterTreeWalker treeWalker(*formatterListener);
190: treeWalker.traverse(&node); // Walk that node and produce the XML...
191:
192: // write out result
193: r.write_no_lang(parserString);
194: } catch(const XSLException& e) {
195: _throw(pool, &method_name, e);
196: }
197: }
198:
199:
200: static void _file(Request& r, const String& method_name, MethodParams *params) {
201: Pool& pool=r.pool();
202: VDnode& vnode=*static_cast<VDnode *>(r.self);
203:
204: // node
205: XalanNode& node=vnode.get_node(pool, &method_name);
206:
207: try {
208: String& parserString=*new(pool) String(pool);
209: ParserStringXalanOutputStream stream(parserString);
210: XalanOutputStreamPrintWriter writer(stream);
211: const char *content_type, *charset;
212: FormatterListener *formatterListener;
213: create_optioned_listener(content_type, charset, formatterListener,
214: pool, method_name, params, 0, writer);
215: FormatterTreeWalker treeWalker(*formatterListener);
216: treeWalker.traverse(&node); // Walk that node and produce the XML...
217:
218: // write out result
219: VFile& vfile=*new(pool) VFile(pool);
220: const char *cstr=parserString.cstr();
221: String *scontent_type=new(pool) String(pool, content_type);
222: Value *vcontent_type;
223: if(charset) {
224: VHash *vhcontent_type=new(pool) VHash(pool);
225: vhcontent_type->hash().put(*value_name, new(pool) VString(*scontent_type));
226: String *scharset=new(pool) String(pool, charset);
227: vhcontent_type->hash().put(*new(pool) String(pool, "charset"), new(pool) VString(*scharset));
228: vcontent_type=vhcontent_type;
229: } else
230: vcontent_type=new(pool) VString(*scontent_type);
231: vfile.set(false/*tainted*/, cstr, strlen(cstr), 0/*file_name*/, vcontent_type);
232: r.write_no_lang(vfile);
233: } catch(const XSLException& e) {
234: _throw(pool, &method_name, e);
235: }
236: }
237:
1.16 parser 238: static void _set(Request& r, const String& method_name, MethodParams *params) {
239: Pool& pool=r.pool();
1.26 parser 240: VDom& vdom=*static_cast<VDom *>(r.self);
1.16 parser 241:
1.17 parser 242: Value& vxml=params->as_junction(0, "xml must be code");
243: Temp_lang temp_lang(r, String::UL_XML);
244: const String& xml=r.process(vxml).as_string();
245:
246: std::istrstream stream(xml.cstr());
1.16 parser 247: XalanParsedSource* parsedSource;
1.26 parser 248: int error=vdom.transformer().parseSource(&stream, parsedSource);
1.16 parser 249:
250: if(error)
251: PTHROW(0, 0,
252: &method_name,
1.26 parser 253: vdom.transformer().getLastError());
1.16 parser 254:
255: // replace any previous parsed source
1.26 parser 256: vdom.set_parsed_source(*parsedSource);
1.16 parser 257: }
258:
1.2 parser 259: static void _load(Request& r, const String& method_name, MethodParams *params) {
260: Pool& pool=r.pool();
1.26 parser 261: VDom& vdom=*static_cast<VDom *>(r.self);
1.2 parser 262:
1.10 parser 263: // filespec
1.20 parser 264: const String& file_name=params->as_string(0, "file name must not be code");
265: const char *filespec=r.absolute(file_name).cstr(String::UL_FILE_SPEC);
1.2 parser 266:
267: XalanParsedSource* parsedSource;
1.26 parser 268: int error=vdom.transformer().parseSource(filespec, parsedSource);
1.2 parser 269:
270: if(error)
271: PTHROW(0, 0,
1.20 parser 272: &file_name,
1.26 parser 273: vdom.transformer().getLastError());
1.2 parser 274:
1.15 parser 275: // replace any previous parsed source
1.26 parser 276: vdom.set_parsed_source(*parsedSource);
1.2 parser 277: }
278:
1.12 parser 279: static void add_xslt_param(const Hash::Key& aattribute, Hash::Val *ameaning,
1.20 parser 280: void *info) {
1.12 parser 281: XalanTransformer& transformer=*static_cast<XalanTransformer *>(info);
282: const char *attribute_cstr=aattribute.cstr();
283: const char *meaning_cstr=static_cast<Value *>(ameaning)->as_string().cstr();
284:
285: transformer.setStylesheetParam(
1.23 parser 286: XalanDOMString(attribute_cstr),
287: XalanDOMString(meaning_cstr));
1.12 parser 288: }
1.10 parser 289: static void _xslt(Request& r, const String& method_name, MethodParams *params) {
290: Pool& pool=r.pool();
1.26 parser 291: VDom& vdom=*static_cast<VDom *>(r.self);
1.10 parser 292:
1.12 parser 293: // params
294: if(params->size()>1) {
1.18 parser 295: Value& vparams=params->as_no_junction(1, "transform parameters parameter must not be code");
1.12 parser 296: if(vparams.is_defined())
297: if(Hash *params=vparams.get_hash())
1.26 parser 298: params->for_each(add_xslt_param, &vdom.transformer());
1.12 parser 299: else
300: PTHROW(0, 0,
301: &method_name,
1.18 parser 302: "transform parameters parameter must be hash");
1.12 parser 303: }
304:
1.10 parser 305: // source
1.26 parser 306: XalanParsedSource &parsed_source=vdom.get_parsed_source(pool, &method_name);
1.10 parser 307:
308: // stylesheet
1.20 parser 309: const String& stylesheet_file_name=params->as_string(0, "file name must not be code");
310: const String& stylesheet_filespec=r.absolute(stylesheet_file_name);
311: //_asm int 3;
312: Stylesheet_connection& connection=XSLT_stylesheet_manager->get_connection(stylesheet_filespec);
1.10 parser 313:
314: // target
1.26 parser 315: XalanDocument* target=vdom.parser_liaison().createDocument();
1.10 parser 316: XSLTResultTarget domResultTarget(target);
317:
318: // transform
1.26 parser 319: int error=vdom.transformer().transform(
1.20 parser 320: parsed_source,
321: &connection.stylesheet(),
322: domResultTarget);
323: connection.close();
1.10 parser 324: if(error)
325: PTHROW(0, 0,
1.20 parser 326: &stylesheet_file_name,
1.26 parser 327: vdom.transformer().getLastError());
1.10 parser 328:
329: // write out result
1.11 parser 330: VDom& result=*new(pool) VDom(pool);
331: result.set_document(*target);
332: r.write_no_lang(result);
1.10 parser 333: }
334:
1.2 parser 335: // constructor
336:
1.24 parser 337: MDom::MDom(Pool& apool) : MDnode(apool) {
1.4 parser 338: set_name(*NEW String(pool(), DOM_CLASS_NAME));
1.26 parser 339:
1.27 ! parser 340: // ^dom.save[some.xml]
! 341: // ^dom.save[some.xml;options hash]
! 342: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.26 parser 343:
1.27 ! parser 344: // ^dom.string[] <doc/>
1.26 parser 345: // ^dom.string[options hash] <doc/>
1.27 ! parser 346: add_native_method("string", Method::CT_DYNAMIC, _string, 0, 1);
1.26 parser 347:
1.27 ! parser 348: // ^dom.file[] file with "<doc/>"
1.26 parser 349: // ^dom.file[options hash] file with "<doc/>"
1.27 ! parser 350: add_native_method("file", Method::CT_DYNAMIC, _file, 0, 1);
1.16 parser 351:
352: // ^dom::set[<some>xml</some>]
353: add_native_method("set", Method::CT_DYNAMIC, _set, 1, 1);
1.2 parser 354:
1.3 parser 355: // ^dom::load[some.xml]
1.2 parser 356: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 1);
1.10 parser 357:
1.20 parser 358: // ^dom.xslt[stylesheet file_name]
359: // ^dom.xslt[stylesheet file_name;params hash]
1.12 parser 360: add_native_method("xslt", Method::CT_DYNAMIC, _xslt, 1, 2);
1.6 parser 361:
1.2 parser 362: }
363: // global variable
364:
365: Methoded *Dom_class;
366:
367: // creator
368:
369: Methoded *MDom_create(Pool& pool) {
370: return Dom_class=new(pool) MDom(pool);
371: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to dom.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / classes