250 lines
7.2 KiB
C++
250 lines
7.2 KiB
C++
/************************************************************************/
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/* */
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/* Centre for Speech Technology Research */
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/* University of Edinburgh, UK */
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/* Copyright (c) 1996,1997 */
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/* All Rights Reserved. */
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/* */
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/* Permission is hereby granted, free of charge, to use and distribute */
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/* this software and its documentation without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of this work, and to */
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/* permit persons to whom this work is furnished to do so, subject to */
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/* the following conditions: */
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/* 1. The code must retain the above copyright notice, this list of */
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/* conditions and the following disclaimer. */
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/* 2. Any modifications must be clearly marked as such. */
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/* 3. Original authors' names are not deleted. */
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/* 4. The authors' names are not used to endorse or promote products */
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/* derived from this software without specific prior written */
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/* permission. */
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/* */
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/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
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/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
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/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
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/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
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/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
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/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
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/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
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/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
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/* THIS SOFTWARE. */
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/* */
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/*************************************************************************/
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/* */
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/* Author: Richard Caley (rjc@cstr.ed.ac.uk) */
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/* -------------------------------------------------------------------- */
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/* Simple XML processing example. */
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/* */
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/*************************************************************************/
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#include <cstdlib>
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#include <fstream>
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#include <iostream>
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#include "rxp/XML_Parser.h"
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#if defined(DATAC)
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# define __STRINGIZE(X) #X
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# define DATA __STRINGIZE(DATAC)
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#endif
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/**@name XML_Parser:example
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*
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* Simple XML processing example.
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*
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* @see XML_Parser
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*/
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//@{
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/** Any data needed during processing has to be passed around,
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* here we just keep track of the nesting depth.
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*/
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struct Parse_State
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{
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int depth;
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};
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/** Define a subset of XML_Parser_Class which which has callbacks for
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* what we want to do. In a real application we might not need
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* to define them all.
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*/
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class My_Parser_Class : public XML_Parser_Class
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{
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protected:
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virtual void document_open(XML_Parser_Class &c,
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XML_Parser &p,
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void *data);
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virtual void document_close(XML_Parser_Class &c,
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XML_Parser &p,
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void *data);
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virtual void element_open(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name,
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XML_Attribute_List &attributes);
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virtual void element(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name,
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XML_Attribute_List &attributes);
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virtual void element_close(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name);
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virtual void pcdata(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *chars);
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virtual void cdata(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *chars);
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virtual void processing(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *instruction);
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virtual void error(XML_Parser_Class &c,
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XML_Parser &p,
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void *data);
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};
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int main(void)
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{
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My_Parser_Class pclass;
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Parse_State state;
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/** Rewriting rules for public and system IDs can be
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* used to locate local copies etc.
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*/
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pclass.register_id("//EST//Test/\\(.*\\)",
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DATA "/\\1.dtd");
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/** An individual parser runs over a single source.
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*/
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XML_Parser *parser = pclass.make_parser(DATA "/eg.xml",
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&state);
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/** Run the parser.
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*/
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parser->go();
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exit(0);
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}
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/** Now we define the callbacks.
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*/
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void My_Parser_Class::document_open(XML_Parser_Class &c,
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XML_Parser &p,
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void *data)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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state->depth=1;
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printf("%*s document %d\n", state->depth*4, ">", state->depth);
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}
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void My_Parser_Class::document_close(XML_Parser_Class &c,
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XML_Parser &p,
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void *data)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s <document %d\n", state->depth*4, ">", state->depth);
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}
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void My_Parser_Class::element_open(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name,
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XML_Attribute_List &attributes)
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{
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(void)c; (void)p; (void)attributes;
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Parse_State *state = (Parse_State *)data;
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state->depth++;
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printf("%*s %s %d\n", state->depth*4, ">", name, state->depth);
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}
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void My_Parser_Class::element(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name,
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XML_Attribute_List &attributes)
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{
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(void)c; (void)p; (void)attributes;
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Parse_State *state = (Parse_State *)data;
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printf("%*s %s %d\n", state->depth*4, ":", name, state->depth);
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}
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void My_Parser_Class::element_close(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *name)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s %s %d\n", state->depth*4, "<", name, state->depth);
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state->depth--;
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}
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void My_Parser_Class::pcdata(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *chars)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s [pcdata[%s]] %d\n", state->depth*4, "", chars, state->depth);
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}
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void My_Parser_Class::cdata(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *chars)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s [cdata[%s]] %d\n", state->depth*4, "", chars, state->depth);
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}
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void My_Parser_Class::processing(XML_Parser_Class &c,
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XML_Parser &p,
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void *data,
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const char *instruction)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s [proc[%s]] %d\n", state->depth*4, "", instruction, state->depth);
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}
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void My_Parser_Class::error(XML_Parser_Class &c,
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XML_Parser &p,
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void *data)
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{
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(void)c; (void)p;
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Parse_State *state = (Parse_State *)data;
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printf("%*s [error[%s]] %d\n", state->depth*4, "", get_error(p), state->depth);
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}
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//@}
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