95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
/*
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Copyright (c) 2001, Loki software, inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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Neither the name of Loki software nor the names of its contributors may be used
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to endorse or promote products derived from this software without specific prior
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written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT,INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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//-----------------------------------------------------------------------------
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//
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// DESCRIPTION:
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// header for xml stuff used in radiant
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//
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#ifndef __XMLSTUFF__
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#define __XMLSTUFF__
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#include "libxml/parser.h"
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#include <cstddef>
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class ISAXHandler;
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// a 'user data' structure we pass along in the SAX callbacks to represent the current state
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// the recurse value tracks the current depth in the tree
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// message_info also stores information to exit the stream listening cleanly with an error:
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// if msg_level == SYS_ERR, then we will reset the listening at the end of the current node
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// the level for stopping the feed is stored in stop_depth
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// unkown nodes are ignored, we use ignore_depth to track the level we start ignoring from
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struct message_info_t {
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int msg_level; // current message level (SYS_MSG, SYS_WRN, SYS_ERR)
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int recurse; // current recursion depth (used to track various things)
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int ignore_depth; // the ignore depth limit when we are jumping over unknown nodes (0 means we are not ignoring)
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int stop_depth; // the depth we need to stop at the end
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int geometry_depth; // are we parsing some geometry information (i.e. do we forward the SAX calls?)
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ISAXHandler *pGeometry; // the handler
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enum unnamed0 { bufsize = 1024 };
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char m_buffer[bufsize];
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std::size_t m_length;
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};
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class IGL2DWindow;
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class ISAXHandler {
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public:
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virtual ~ISAXHandler() = default;
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virtual void Release()
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{}
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virtual void saxStartElement(message_info_t *ctx, const xmlChar *name, const xmlChar **attrs) = 0;
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virtual void saxEndElement(message_info_t *ctx, const xmlChar *name) = 0;
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virtual void saxCharacters(message_info_t *ctx, const xmlChar *ch, int len) = 0;
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virtual const char *getName()
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{
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return NULL;
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}
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virtual IGL2DWindow *Highlight()
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{
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return 0;
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}
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virtual void DropHighlight()
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{
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}
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};
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#endif
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