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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#ifndef ROCKETCORESTRINGUTILITIES_H
#define ROCKETCORESTRINGUTILITIES_H
#include "Header.h"
#include "Types.h"
#include "String.h"
#include <stdarg.h>
namespace Rocket {
namespace Core {
/**
Helper functions for string manipulation.
@author Lloyd Weehuizen
*/
class ROCKETCORE_API StringUtilities
{
public:
/// Expands character-delimited list of values in a single string to a whitespace-trimmed list
/// of values.
/// @param[out] string_list Resulting list of values.
/// @param[in] string String to expand.
/// @param[in] delimiter Delimiter found between entries in the string list.
static void ExpandString(StringList& string_list, const String& string, const char delimiter = ',');
/// Joins a list of string values into a single string separated by a character delimiter.
/// @param[out] string Resulting concatenated string.
/// @param[in] string_list Input list of string values.
/// @param[in] delimiter Delimiter to insert between the individual values.
static void JoinString(String& string, const StringList& string_list, const char delimiter = ',');
/// Hashes a string of data to an integer value using the FNV algorithm.
/// @param[in] data Data to hash.
/// @param[in] length Length of the string to hash. If this is -1, the data will be interpreted as a C string.
/// @return Integer hash of the data.
static Hash FNVHash(const char* data, int length = -1);
/// Converts a character array in UTF-8 encoding to a vector of words. The UCS-2 words will be encoded as
/// either big- or little-endian, depending on the host processor.
/// @param[in] input Input string in UTF-8 encoding.
/// @param[out] output Output vector of UCS-2 characters.
/// @return True if the conversion went successfully, false if any characters had to be skipped (this will occur if they can't fit into UCS-2).
static bool UTF8toUCS2(const String& input, std::vector< word >& output);
/// Converts a vector of words in UCS-2 encoding into a character array in UTF-8 encoding. This
/// function assumes the endianness of the input words to be the same as the host processor.
/// @param[in] input Input vector in UCS-2 encoding.
/// @param[out] output Output string in UTF-8 encoding.
/// @return True if the conversion went successfully, false if not.
static bool UCS2toUTF8(const std::vector< word >& input, String& output);
/// Converts an array of words in UCS-2 encoding into a character array in UTF-8 encoding. This
/// function assumes the endianness of the input words to be the same as the host processor.
/// @param[in] input Input array of words in UCS-2 encoding.
/// @param[in] input_size Length of the input array.
/// @param[out] output Output string in UTF-8 encoding.
/// @return True if the conversion went successfully, false if not.
static bool UCS2toUTF8(const word* input, size_t input_size, String& output);
/// Checks if a given value is a whitespace character.
/// @param[in] x The character to evaluate.
/// @return True if the character is whitespace, false otherwise.
template < typename CharacterType >
static bool IsWhitespace(CharacterType x)
{
return (x == '\r' || x == '\n' || x == ' ' || x == '\t');
}
/// Strip whitespace characters from the beginning and end of a string.
/// @param[in] string The string to trim.
/// @return The stripped string.
static String StripWhitespace(const String& string);
/// Operator for STL containers using strings.
struct ROCKETCORE_API StringComparei
{
bool operator()(const String& lhs, const String& rhs) const;
};
};
}
}
#endif
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