You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
258 lines
7.0 KiB
258 lines
7.0 KiB
#ifndef _XEXMLPARSER_HPP
|
|
#define _XEXMLPARSER_HPP
|
|
/*-------------------------------------------------------------------------
|
|
* drawElements Quality Program Test Executor
|
|
* ------------------------------------------
|
|
*
|
|
* Copyright 2014 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*//*!
|
|
* \file
|
|
* \brief XML Parser.
|
|
*
|
|
* \todo [2012-06-07 pyry] Not supported / handled properly:
|
|
* - xml namespaces (<ns:Element>)
|
|
* - backslash escapes in strings
|
|
* - " -style escapes
|
|
* - utf-8
|
|
*//*--------------------------------------------------------------------*/
|
|
|
|
#include "xeDefs.hpp"
|
|
#include "deRingBuffer.hpp"
|
|
|
|
#include <string>
|
|
#include <map>
|
|
|
|
namespace xe
|
|
{
|
|
namespace xml
|
|
{
|
|
|
|
enum Token
|
|
{
|
|
TOKEN_INCOMPLETE = 0, //!< Not enough data to determine token.
|
|
TOKEN_END_OF_STRING, //!< End of document string.
|
|
TOKEN_DATA, //!< Block of data (anything outside tags).
|
|
TOKEN_COMMENT, //!< <!-- comment -->
|
|
TOKEN_IDENTIFIER, //!< Identifier (in tags).
|
|
TOKEN_STRING, //!< String (in tags).
|
|
TOKEN_TAG_START, //!< <
|
|
TOKEN_TAG_END, //!< >
|
|
TOKEN_END_TAG_START, //!< </
|
|
TOKEN_EMPTY_ELEMENT_END, //!< />
|
|
TOKEN_PROCESSING_INSTRUCTION_START, //!< <?
|
|
TOKEN_PROCESSING_INSTRUCTION_END, //!< ?>
|
|
TOKEN_EQUAL, //!< =
|
|
TOKEN_ENTITY, //!< Entity reference, such as &
|
|
|
|
TOKEN_LAST
|
|
};
|
|
|
|
enum Element
|
|
{
|
|
ELEMENT_INCOMPLETE = 0, //!< Incomplete element.
|
|
ELEMENT_START, //!< Element start.
|
|
ELEMENT_END, //!< Element end.
|
|
ELEMENT_DATA, //!< Data element.
|
|
ELEMENT_END_OF_STRING, //!< End of document string.
|
|
|
|
ELEMENT_LAST
|
|
};
|
|
|
|
const char* getTokenName (Token token);
|
|
|
|
// \todo [2012-10-17 pyry] Add line number etc.
|
|
class ParseError : public xe::ParseError
|
|
{
|
|
public:
|
|
ParseError (const std::string& message) : xe::ParseError(message) {}
|
|
};
|
|
|
|
class Tokenizer
|
|
{
|
|
public:
|
|
Tokenizer (void);
|
|
~Tokenizer (void);
|
|
|
|
void clear (void); //!< Resets tokenizer to initial state.
|
|
|
|
void feed (const deUint8* bytes, int numBytes);
|
|
void advance (void);
|
|
|
|
Token getToken (void) const { return m_curToken; }
|
|
int getTokenLen (void) const { return m_curTokenLen; }
|
|
deUint8 getTokenByte (int offset) const { DE_ASSERT(m_curToken != TOKEN_INCOMPLETE && m_curToken != TOKEN_END_OF_STRING); return m_buf.peekBack(offset); }
|
|
void getTokenStr (std::string& dst) const;
|
|
void appendTokenStr (std::string& dst) const;
|
|
|
|
void getString (std::string& dst) const;
|
|
|
|
private:
|
|
Tokenizer (const Tokenizer& other);
|
|
Tokenizer& operator= (const Tokenizer& other);
|
|
|
|
int getChar (int offset) const;
|
|
|
|
void error (const std::string& what);
|
|
|
|
enum State
|
|
{
|
|
STATE_DATA = 0,
|
|
STATE_TAG,
|
|
STATE_IDENTIFIER,
|
|
STATE_VALUE,
|
|
STATE_COMMENT,
|
|
STATE_ENTITY,
|
|
|
|
STATE_LAST
|
|
};
|
|
|
|
enum
|
|
{
|
|
END_OF_STRING = 0, //!< End of string (0).
|
|
END_OF_BUFFER = 0xffffffff //!< End of current data buffer.
|
|
};
|
|
|
|
Token m_curToken; //!< Current token.
|
|
int m_curTokenLen; //!< Length of current token.
|
|
|
|
State m_state; //!< Tokenization state.
|
|
|
|
de::RingBuffer<deUint8> m_buf;
|
|
};
|
|
|
|
class Parser
|
|
{
|
|
public:
|
|
typedef std::map<std::string, std::string> AttributeMap;
|
|
typedef AttributeMap::const_iterator AttributeIter;
|
|
|
|
Parser (void);
|
|
~Parser (void);
|
|
|
|
void clear (void); //!< Resets parser to initial state.
|
|
|
|
void feed (const deUint8* bytes, int numBytes);
|
|
void advance (void);
|
|
|
|
Element getElement (void) const { return m_element; }
|
|
|
|
// For ELEMENT_START / ELEMENT_END.
|
|
const char* getElementName (void) const { return m_elementName.c_str(); }
|
|
|
|
// For ELEMENT_START.
|
|
bool hasAttribute (const char* name) const { return m_attributes.find(name) != m_attributes.end(); }
|
|
const char* getAttribute (const char* name) const { return m_attributes.find(name)->second.c_str(); }
|
|
const AttributeMap& attributes (void) const { return m_attributes; }
|
|
|
|
// For ELEMENT_DATA.
|
|
int getDataSize (void) const;
|
|
deUint8 getDataByte (int offset) const;
|
|
void getDataStr (std::string& dst) const;
|
|
void appendDataStr (std::string& dst) const;
|
|
|
|
private:
|
|
Parser (const Parser& other);
|
|
Parser& operator= (const Parser& other);
|
|
|
|
void parseEntityValue (void);
|
|
|
|
void error (const std::string& what);
|
|
|
|
enum State
|
|
{
|
|
STATE_DATA = 0, //!< Initial state - assuming data or tag open.
|
|
STATE_ENTITY, //!< Parsed entity is stored - overrides data.
|
|
STATE_IN_PROCESSING_INSTRUCTION, //!< In processing instruction.
|
|
STATE_START_TAG_OPEN, //!< Start tag open.
|
|
STATE_END_TAG_OPEN, //!< End tag open.
|
|
STATE_EXPECTING_END_TAG_CLOSE, //!< Expecting end tag close.
|
|
STATE_ATTRIBUTE_LIST, //!< Expecting attribute list.
|
|
STATE_EXPECTING_ATTRIBUTE_EQ, //!< Got attribute name, expecting =.
|
|
STATE_EXPECTING_ATTRIBUTE_VALUE, //!< Expecting attribute value.
|
|
STATE_YIELD_EMPTY_ELEMENT_END, //!< Empty element: start has been reported but not end.
|
|
|
|
STATE_LAST
|
|
};
|
|
|
|
Tokenizer m_tokenizer;
|
|
|
|
Element m_element;
|
|
std::string m_elementName;
|
|
AttributeMap m_attributes;
|
|
|
|
State m_state;
|
|
std::string m_attribName;
|
|
std::string m_entityValue; //!< Data override, such as entity value.
|
|
};
|
|
|
|
// Inline implementations
|
|
|
|
inline void Tokenizer::getTokenStr (std::string& dst) const
|
|
{
|
|
DE_ASSERT(m_curToken != TOKEN_INCOMPLETE && m_curToken != TOKEN_END_OF_STRING);
|
|
dst.resize(m_curTokenLen);
|
|
for (int ndx = 0; ndx < m_curTokenLen; ndx++)
|
|
dst[ndx] = m_buf.peekBack(ndx);
|
|
}
|
|
|
|
inline void Tokenizer::appendTokenStr (std::string& dst) const
|
|
{
|
|
DE_ASSERT(m_curToken != TOKEN_INCOMPLETE && m_curToken != TOKEN_END_OF_STRING);
|
|
|
|
size_t oldLen = dst.size();
|
|
dst.resize(oldLen+m_curTokenLen);
|
|
|
|
for (int ndx = 0; ndx < m_curTokenLen; ndx++)
|
|
dst[oldLen+ndx] = m_buf.peekBack(ndx);
|
|
}
|
|
|
|
inline int Parser::getDataSize (void) const
|
|
{
|
|
if (m_state != STATE_ENTITY)
|
|
return m_tokenizer.getTokenLen();
|
|
else
|
|
return (int)m_entityValue.size();
|
|
}
|
|
|
|
inline deUint8 Parser::getDataByte (int offset) const
|
|
{
|
|
if (m_state != STATE_ENTITY)
|
|
return m_tokenizer.getTokenByte(offset);
|
|
else
|
|
return (deUint8)m_entityValue[offset];
|
|
}
|
|
|
|
inline void Parser::getDataStr (std::string& dst) const
|
|
{
|
|
if (m_state != STATE_ENTITY)
|
|
return m_tokenizer.getTokenStr(dst);
|
|
else
|
|
dst = m_entityValue;
|
|
}
|
|
|
|
inline void Parser::appendDataStr (std::string& dst) const
|
|
{
|
|
if (m_state != STATE_ENTITY)
|
|
return m_tokenizer.appendTokenStr(dst);
|
|
else
|
|
dst += m_entityValue;
|
|
}
|
|
|
|
} // xml
|
|
} // xe
|
|
|
|
#endif // _XEXMLPARSER_HPP
|