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456 lines
17 KiB
456 lines
17 KiB
/**
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* Copyright (C) 2013-2014 Justin James.
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*
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* This license must be preserved.
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* Any applications, libraries, or code which make any use of any
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* component of this program must not be commercial, unless explicit
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* permission is granted from the original author. The use of this
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* program for non-profit purposes is permitted.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* In the event that this license restricts you from making desired use of this program, contact the original author.
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* Written by Justin James <justin.aj@hotmail.com>
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*/
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#if !defined _CSTRING_H_HEADER
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#define _CSTRING_H_HEADER
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/**
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* @file CString.h
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* @brief Defines the base CString_Type, as well as a series of CString types.
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* Note: Functions which take "case" or "wildcards" into consideration will only function
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* for types char and wchar_t; inputs with other types will simply return false.
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*/
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#include "Shift_String.h"
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namespace Jupiter
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{
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/**
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* @brief Provides the basis for CString classes by providing a minimalist implementation (i.e: no extra variables).
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*
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* @param T Element type which the CString will store. Defaults to char.
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*/
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template<typename T = char> class CString_Type : public Shift_String_Type<T>
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{
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public:
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/**
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* @brief Returns the C-Style string behind the CString.
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*
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* @return C-Style string that the CString represents.
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*/
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const T *c_str() const;
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/**
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* @brief Truncates the string by a specified number of elements.
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*
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* @param n Number of elements to remove from the tail.
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* @return New size of the CString.
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*/
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size_t truncate(size_t n);
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/**
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* @brief Removes the first instance of an element from the string.
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*
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* @param value Value of the element to remove.
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* @return True if an element was removed, false otherwise.
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*/
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bool remove(const T &value);
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/**
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* @brief Sets the CString's contents based on the format string and input variables.
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* Note: Format specifiers similar to printf. Returns 0 for any type other than char and wchar_t.
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*
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* @param format Format that the string is compared against.
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* @param args Inputs to match the format specifiers.
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* @return Number of characters written.
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*/
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size_t vformat(const T *format, va_list args);
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/**
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* @brief Appends to a CString's contents based on the format string and input variables.
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* Note: Format specifiers similar to printf. Returns 0 for any type other than char and wchar_t.
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*
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* @param format Format that the string is compared against.
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* @param args Inputs to match the format specifiers.
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* @return Number of characters written.
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*/
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size_t avformat(const T *format, va_list args);
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/**
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* @brief Sets the CString's contents based on the format string and input variables.
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* Note: Format specifiers similar to printf. Returns 0 for any type other than char and wchar_t.
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*
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* @param format Format that the string is compared against.
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* @param ... Inputs to match the format specifiers.
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* @return String containing the new format.
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*/
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static CString_Type Format(const T *format, ...);
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param pos Position in the string to start copying from.
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* @return String containing a partial copy of the original string.
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*/
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CString_Type<T> substring(size_t pos) const;
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param pos Position in the string to start copying from.
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* @param length Number of characters to copy.
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* @return String containing a partial copy of the original string.
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*/
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CString_Type<T> substring(size_t pos, size_t length) const;
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Type<T> substring(const Jupiter::Readable_String<T> &in, size_t pos);
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static CString_Type<T> substring(const T *in, size_t pos);
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @param length Number of characters to copy.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Type<T> substring(const Jupiter::Readable_String<T> &in, size_t pos, size_t length);
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static CString_Type<T> substring(const T *in, size_t pos, size_t length);
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param pos Position of word in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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CString_Type<T> getWord(size_t pos, const T *whitespace) const;
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/**
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* @brief Creates a partial copy of an input string, based on a set of tokens.
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*
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* @param in String to get a partial copy of.
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* @param pos Position of word in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Type<T> getWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
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/**
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* @brief Creates a partial copy of an input string, based on a set of tokens.
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*
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* @param in C-Style string to get a partial copy of.
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* @param pos Position of word in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Type<T> getWord(const T *in, size_t pos, const T *whitespace);
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param pos Position in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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CString_Type<T> gotoWord(size_t pos, const T *whitespace) const;
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Type<T> gotoWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
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/**
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* @brief Copies the data from the input string to the CString.
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*
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* @param in String containing the data to be copied.
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* @return New size of the CString.
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*/
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size_t set(const Readable_String<T> &in);
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size_t set(const std::basic_string<T> &in);
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size_t set(const T *in);
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size_t set(const T in);
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/**
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* @brief Copies the data from the input string and concatenates it to the end of CString.
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*
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* @param in String containing the data to be concatenated.
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* @return New size of the CString.
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*/
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size_t concat(const Readable_String<T> &in);
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size_t concat(const std::basic_string<T> &in);
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size_t concat(const T *in);
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size_t concat(const T in);
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/** Assignment Operators */
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inline CString_Type<T> &operator=(const CString_Type<T> &right) { this->set(right); return *this; };
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inline CString_Type<T> &operator=(const Readable_String<T> &right) { this->set(right); return *this; };
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inline CString_Type<T> &operator=(const std::basic_string<T> &right) { this->set(right); return *this; };
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inline CString_Type<T> &operator=(const T *right) { this->set(right); return *this; };
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inline CString_Type<T> &operator=(const T right) { this->set(right); return *this; };
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static const Jupiter::CString_Type<T> empty; /** Empty instantation of CString_Type */
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/** Default Constructor */
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CString_Type();
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/**
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* @brief Size hint constructor.
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* Note: For the CString_Type base class, this is only truly useful internally.
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*
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* @param size Minimum number of elements the string must be able to hold.
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*/
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CString_Type(size_t size);
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/** Move Constructor */
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CString_Type(CString_Type<T> &&source);
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/** Copy Constructors */
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CString_Type(const CString_Type<T> &in) : CString_Type((Readable_String<T> &)in) {}
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CString_Type(const Readable_String<T> &in);
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CString_Type(const std::basic_string<T> &in);
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CString_Type(const T *in, size_t len);
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CString_Type(const T *in);
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protected:
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/**
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* @brief Sets the internal buffer to be at least large enough to old a specified number of elements.
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* Note: This does nothing if len is less than the string's current length.
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*
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* @param len Minimum number of elements the string buffer must be able to hold.
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* @return True if a new buffer was allocated, false otherwise.
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*/
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virtual bool setBufferSize(size_t len);
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/**
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* @brief Empties the string, and sets the internal buffer to be at least large enough to old a specified number of elements.
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* Note: This does nothing if len is less than the string's current length.
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*
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* @param len Minimum number of elements the string buffer must be able to hold.
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* @return True if a new buffer was allocated, false otherwise.
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*/
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virtual bool setBufferSizeNoCopy(size_t len);
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/** Dummy constructor to prevent string initialization */
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CString_Type(Jupiter::String_Constructor_Base &) {};
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};
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template<typename T = char> using CString_Strict = CString_Type<T>;
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/**
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* @brief Provides a "loose" CString implementation that's more optimized for repeated concatenations.
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* Note: The underlying C-style string will always have a size which is a power of 2, but no fewer than 8 elements.
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*
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* @param T Element type which the CString will store. Defaults to char.
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*/
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template<typename T = char> class CString_Loose : public CString_Type<T>
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{
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public:
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/**
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* @brief Sets the CString's contents based on the format string and input variables.
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* Note: Format specifiers similar to printf. Returns 0 for any type other than char and wchar_t.
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*
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* @param format Format that the string is compared against.
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* @param ... Inputs to match the format specifiers.
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* @return String containing the new format.
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*/
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static CString_Loose<T> Format(const T *format, ...);
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param pos Position in the string to start copying from.
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* @return String containing a partial copy of the original string.
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*/
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CString_Loose<T> substring(size_t pos) const;
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param pos Position in the string to start copying from.
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* @param length Number of characters to copy.
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* @return String containing a partial copy of the original string.
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*/
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CString_Loose<T> substring(size_t pos, size_t length) const;
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Loose<T> substring(const Jupiter::Readable_String<T> &in, size_t pos);
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static CString_Loose<T> substring(const T *in, size_t pos);
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/**
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* @brief Creates a partial copy of the string.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @param length Number of characters to copy.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Loose<T> substring(const Jupiter::Readable_String<T> &in, size_t pos, size_t length);
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static CString_Loose<T> substring(const T *in, size_t pos, size_t length);
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param pos Position in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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CString_Loose<T> getWord(size_t pos, const T *whitespace) const;
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/**
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* @brief Creates a partial copy of an input string, based on a set of tokens.
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* Useful when the input string's type isn't known.
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*
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* @param in String to get a partial copy of.
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* @param pos Position of word in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Loose<T> getWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
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/**
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* @brief Creates a partial copy of an input string, based on a set of tokens.
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* Useful when the input string's type isn't known.
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*
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* @param in C-Style string to get a partial copy of.
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* @param pos Position of word in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Loose<T> getWord(const T *in, size_t pos, const T *whitespace);
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param pos Position in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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CString_Loose<T> gotoWord(size_t pos, const T *whitespace) const;
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/**
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* @brief Creates a partial copy of the string, based on a set of tokens.
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*
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* @param in String to get a partial copy of.
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* @param pos Position in the string to start copying from.
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* @param whitespace A string of tokens used to deliminate words.
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* @return String containing a partial copy of the original string.
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*/
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static CString_Loose<T> gotoWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
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/** Default constructor */
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CString_Loose();
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/**
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* @brief Size hint constructor.
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*
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* @param size Minimum number of elements the string must be able to hold.
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*/
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CString_Loose(size_t size);
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/** Move Constructor */
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CString_Loose(CString_Loose<T> &&source);
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/** Copy Constructors */
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CString_Loose(const CString_Loose &in);
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CString_Loose(const Readable_String<T> &in);
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CString_Loose(const std::basic_string<T> &in);
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CString_Loose(const T *in, size_t len);
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CString_Loose(const T *in);
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static const Jupiter::CString_Loose<T> empty; /** Empty instantation of CString_Loose */
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static const size_t start_size = 8; /** Starting size for loose CStrings. */
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/** Assignment Operators */
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inline CString_Loose<T> &operator=(const CString_Loose<T> &right) { this->set(right); return *this; };
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inline CString_Loose<T> &operator=(const CString_Type<T> &right) { this->set(right); return *this; };
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inline CString_Loose<T> &operator=(const Readable_String<T> &right) { this->set(right); return *this; };
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inline CString_Loose<T> &operator=(const std::basic_string<T> &right) { this->set(right); return *this; };
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inline CString_Loose<T> &operator=(const T *right) { this->set(right); return *this; };
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inline CString_Loose<T> &operator=(const T right) { this->set(right); return *this; };
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protected:
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/**
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* @brief Sets the internal buffer to be at least large enough to old a specified number of elements.
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* Note: This does nothing if len is less than the string's current length.
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*
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* @param len Minimum number of elements the string buffer must be able to hold.
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* @return True if a new buffer was allocated, false otherwise.
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*/
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virtual bool setBufferSize(size_t len);
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/**
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* @brief Empties the string, and sets the internal buffer to be at least large enough to old a specified number of elements.
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* Note: This does nothing if len is less than the string's current length.
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*
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* @param len Minimum number of elements the string buffer must be able to hold.
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* @return True if a new buffer was allocated, false otherwise.
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*/
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virtual bool setBufferSizeNoCopy(size_t len);
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/** Dummy constructor to prevent string initialization */
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CString_Loose(Jupiter::String_Constructor_Base &) {};
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size_t strSize; /** Size of underlying C-string buffer */
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};
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/** Definition of a Loose CString. */
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typedef CString_Loose<char> CStringL;
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/** Definition of a Loose Wide CString */
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typedef CString_Loose<wchar_t> WCStringL;
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/** Definition of a CString. */
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typedef CStringL CString;
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/** Definition of a Wide CString */
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typedef WCStringL WCString;
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/** Generic CString Type */
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typedef CString_Type<char> CStringType;
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/** Generic Wide CString Type */
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typedef CString_Type<wchar_t> WCStringType;
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/** Definition of a Strict CString. */
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typedef CStringType CStringS;
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/** Definition of a Strict Wide CString */
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typedef WCStringType WCStringS;
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/** Empty String constants */
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static const Jupiter::CStringS &emptyCStringS = Jupiter::CStringS::empty;
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static const Jupiter::CStringL &emptyCStringL = Jupiter::CStringL::empty;
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static const Jupiter::CStringType &emptyCString = emptyCStringS;
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static const Jupiter::StringType &emptyString = emptyCString;
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}
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/** Implementation for CString_Type and CString_Loose. Very scary. */
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#include "CString_Imp.h"
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#endif // _CSTRING_H_HEADER
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