/usr/include/xercesc/util/XMLStringTokenizer.hpp is in libxerces-c2-dev 2.8.0+deb1-3build1.
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/*
* $Id: XMLStringTokenizer.hpp 568078 2007-08-21 11:43:25Z amassari $
*/
#if !defined(XMLSTRINGTOKENIZER_HPP)
#define XMLSTRINGTOKENIZER_HPP
#include <xercesc/util/RefArrayVectorOf.hpp>
#include <xercesc/util/XMLString.hpp>
XERCES_CPP_NAMESPACE_BEGIN
/**
* The string tokenizer class breaks a string into tokens.
*
* The XMLStringTokenizer methods do not distinguish among identifiers,
* numbers, and quoted strings, nor do they recognize and skip comments
*
* A XMLStringTokenizer object internally maintains a current position within
* the string to be tokenized. Some operations advance this current position
* past the characters processed.
*/
class XMLUTIL_EXPORT XMLStringTokenizer :public XMemory
{
public:
// -----------------------------------------------------------------------
// Public Constructors
// -----------------------------------------------------------------------
/** @name Constructors */
//@{
/**
* Constructs a string tokenizer for the specified string. The tokenizer
* uses the default delimiter set, which is "\t\n\r\f": the space
* character, the tab character, the newline character, the
* carriage-return character, and the form-feed character. Delimiter
* characters themselves will not be treated as tokens.
*
* @param srcStr The string to be parsed.
* @param manager Pointer to the memory manager to be used to
* allocate objects.
*
*/
XMLStringTokenizer(const XMLCh* const srcStr,
MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
/**
* Constructs a string tokenizer for the specified string. The characters
* in the delim argument are the delimiters for separating tokens.
* Delimiter characters themselves will not be treated as tokens.
*
* @param srcStr The string to be parsed.
* @param delim The set of delimiters.
* @param manager Pointer to the memory manager to be used to
* allocate objects.
*/
XMLStringTokenizer(const XMLCh* const srcStr
, const XMLCh* const delim
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
//@}
// -----------------------------------------------------------------------
// Public Destructor
// -----------------------------------------------------------------------
/** @name Destructor. */
//@{
~XMLStringTokenizer();
//@}
// -----------------------------------------------------------------------
// Management methods
// -----------------------------------------------------------------------
/** @name Management Function */
//@{
/**
* Tests if there are more tokens available from this tokenizer's string.
*
* Returns true if and only if there is at least one token in the string
* after the current position; false otherwise.
*/
bool hasMoreTokens();
/**
* Calculates the number of times that this tokenizer's nextToken method
* can be called to return a valid token. The current position is not
* advanced.
*
* Returns the number of tokens remaining in the string using the current
* delimiter set.
*/
int countTokens();
/**
* Returns the next token from this string tokenizer.
*
* Function allocated, function managed (fafm). The calling function
* does not need to worry about deleting the returned pointer.
*/
XMLCh* nextToken();
//@}
private:
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
XMLStringTokenizer(const XMLStringTokenizer&);
XMLStringTokenizer& operator=(const XMLStringTokenizer&);
// -----------------------------------------------------------------------
// CleanUp methods
// -----------------------------------------------------------------------
void cleanUp();
// -----------------------------------------------------------------------
// Helper methods
// -----------------------------------------------------------------------
bool isDelimeter(const XMLCh ch);
// -----------------------------------------------------------------------
// Private data members
//
// fOffset
// The current position in the parsed string.
//
// fStringLen
// The length of the string parsed (for convenience).
//
// fString
// The string to be parsed
//
// fDelimeters
// A set of delimeter characters
//
// fTokens
// A vector of the token strings
// -----------------------------------------------------------------------
int fOffset;
int fStringLen;
XMLCh* fString;
const XMLCh* fDelimeters;
RefArrayVectorOf<XMLCh>* fTokens;
MemoryManager* fMemoryManager;
};
// ---------------------------------------------------------------------------
// XMLStringTokenizer: Helper methods
// ---------------------------------------------------------------------------
inline bool XMLStringTokenizer::isDelimeter(const XMLCh ch) {
return XMLString::indexOf(fDelimeters, ch) == -1 ? false : true;
}
// ---------------------------------------------------------------------------
// XMLStringTokenizer: Management methods
// ---------------------------------------------------------------------------
inline int XMLStringTokenizer::countTokens() {
if (fStringLen == 0)
return 0;
int tokCount = 0;
bool inToken = false;
for (int i= fOffset; i< fStringLen; i++) {
if (isDelimeter(fString[i])) {
if (inToken) {
inToken = false;
}
continue;
}
if (!inToken) {
tokCount++;
inToken = true;
}
} // end for
return tokCount;
}
XERCES_CPP_NAMESPACE_END
#endif
/**
* End of file XMLStringTokenizer.hpp
*/
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