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/**
* Copyright (C) 2014 Justin James.
*
* This license must be preserved.
* Any applications, libraries, or code which make any use of any
* component of this program must not be commercial, unless explicit
* permission is granted from the original author. The use of this
* program for non-profit purposes is permitted.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* In the event that this license restricts you from making desired use of this program, contact the original author.
* Written by Justin James <justin.aj@hotmail.com>
*/
#if !defined _REFERENCE_STRING_H_HEADER
#define _REFERENCE_STRING_H_HEADER
/**
* @file Reference_String.h
* @brief Provides the basis for String types, of any implementation.
* Note: Some methods are commented out. This means that they should be implemented, but could not be put declared in this template (return of abstract type).
*/
#include "Readable_String.h"
namespace Jupiter
{
/**
* @brief Provides the basis for String classes by providing implementations for operators, comparative operations, and defining abstract functions.
* Note: This is an abstract type.
*
* @param T Element type which the String will store. Defaults to char.
*/
template<typename T = char> class Reference_String : public Jupiter::Readable_String<T>
{
public:
/**
* @brief Fetches an element from the string.
*
* @param index Index of the element to return.
* @return The element located at the specified index.
*/
const T &get(size_t index) const;
/**
* @brief Returns the number of elements in the String.
*
* @return Number of elements in the string.
*/
size_t size() const;
/**
* @brief Returns a pointer to the underlying string of elements.
*
* @return Pointer to the underlying string of elements.
*/
const T *ptr() const;
/**
* @brief Truncates the string by a specified number of elements.
*
* @param n Number of elements to remove from the tail.
* @return New size of the String.
*/
virtual size_t truncate(size_t n);
/**
* @brief Shifts the string pointer to the left.
*
* @param length Number of elements to shift
* @return Number of elements shifted to the left.
*/
size_t shiftLeft(size_t length);
/**
* @brief Shifts the string pointer to the right.
*
* @param length Number of elements to shift
* @return Number of elements shifted.
*/
size_t shiftRight(size_t length);
/**
* @brief Sets the reference to point to an input string.
*
* @param in String containing the data to be referenced.
* @return New size of the String.
*/
size_t set(const Jupiter::Readable_String<T> &in);
size_t set(const std::basic_string<T> &in);
size_t set(const T *in, size_t len);
size_t set(const T *in);
/**
* @brief Creates a partial copy of the string.
*
* @param pos Position in the string to start copying from.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> substring(size_t pos) const;
/**
* @brief Creates a partial copy of the string.
*
* @param pos Position in the string to start copying from.
* @param length Number of characters to copy.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> substring(size_t pos, size_t length) const;
/**
* @brief Creates a partial copy of the string.
*
* @param in String to get a partial copy of.
* @param pos Position in the string to start copying from.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> substring(const Jupiter::Readable_String<T> &in, size_t pos);
static Reference_String<T> substring(const T *in, size_t pos);
/**
* @brief Creates a partial copy of the string.
*
* @param in String to get a partial copy of.
* @param pos Position in the string to start copying from.
* @param length Number of characters to copy.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> substring(const Jupiter::Readable_String<T> &in, size_t pos, size_t length);
static Reference_String<T> substring(const T *in, size_t pos, size_t length);
/**
* @brief Creates a partial copy of the string, based on a set of tokens.
*
* @param pos Position of word in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> getWord(size_t pos, const T *whitespace) const;
/**
* @brief Creates a partial copy of an input string, based on a set of tokens.
*
* @param in String to get a partial copy of.
* @param pos Position of word in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> getWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
/**
* @brief Creates a partial copy of an input string, based on a set of tokens.
*
* @param in C-Style string to get a partial copy of.
* @param pos Position of word in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> getWord(const T *in, size_t pos, const T *whitespace);
/**
* @brief Creates a partial copy of the string, based on a token.
*
* @param pos Position of the token in the string to start copying from.
* @param token Token to scan for.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> getToken(size_t pos, const T &token);
Reference_String<T> getToken(size_t pos, const Jupiter::Readable_String<T> &token);
/**
* @brief Creates a partial copy of an input string, based on a token.
*
* @param in String to get a partial copy of.
* @param pos Position of the token in the string to start copying from.
* @param token Token to scan for.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> getToken(const Jupiter::Readable_String<T> &in, size_t pos, const T &token);
static Reference_String<T> getToken(const Jupiter::Readable_String<T> &in, size_t pos, const Jupiter::Readable_String<T> &token);
/**
* @brief Creates a partial copy of the string, based on a set of tokens.
*
* @param pos Position in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> gotoWord(size_t pos, const T *whitespace) const;
/**
* @brief Creates a partial copy of the string, based on a set of tokens.
*
* @param in String to get a partial copy of.
* @param pos Position in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> gotoWord(const Jupiter::Readable_String<T> &in, size_t pos, const T *whitespace);
/**
* @brief Creates a partial copy of the string, based on a set of tokens.
*
* @param in C-Style string to get a partial copy of.
* @param pos Position in the string to start copying from.
* @param whitespace A string of tokens used to deliminate words.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> gotoWord(const T *in, size_t pos, const T *whitespace);
/**
* @brief Creates a partial copy of the string, based on a token.
*
* @param pos Position in the string to start copying from.
* @param token Token to scan for.
* @return String containing a partial copy of the original string.
*/
Reference_String<T> gotoToken(size_t pos, const T &token);
Reference_String<T> gotoToken(size_t pos, const Jupiter::Readable_String<T> &token);
/**
* @brief Creates a partial copy of the string, based on a token.
*
* @param in String to get a partial copy of.
* @param pos Position in the string to start copying from.
* @param token Token to scan for.
* @return String containing a partial copy of the original string.
*/
static Reference_String<T> gotoToken(const Jupiter::Readable_String<T> &in, size_t pos, const T &token);
static Reference_String<T> gotoToken(const Jupiter::Readable_String<T> &in, size_t pos, const Jupiter::Readable_String<T> &token);
/**
* @brief Default constructor for the Reference_String class.
*/
Reference_String();
/**
* @brief Creates a reference to a C-Style string.
*
* @param in String to get a reference of.
*/
Reference_String(const T *in);
/**
* @brief Creates a reference to a string.
*
* @param in String to get a reference of.
* @param len Length of the string to track.
*/
Reference_String(const T *in, size_t len);
/**
* @brief Move constructor for the Reference_String class.
*/
Reference_String(Jupiter::Reference_String<T> &&source);
/**
* @brief Constructor for the Refererence_String class to create a reference to an existing string.
*/
Reference_String(const Jupiter::Readable_String<T> &in);
/**
* @brief Copy constructor for the Reference_String class.
*/
Reference_String(const Jupiter::Reference_String<T> &in);
static const Jupiter::Reference_String<T> empty; /** Empty instantiation of Reference_String */
protected:
const T *str; /** Pointer for the underlying string of elements */
size_t length; /** Number of representable elements in the string */
};
/** Generic Reference String Type */
typedef Reference_String<char> ReferenceString;
/** Generic Wide Reference String Type */
typedef Reference_String<wchar_t> ReferenceWString;
}
#define STRING_LITERAL_AS_REFERENCE(str) Jupiter::ReferenceString(str, sizeof(str) - 1)
#define STRING_LITERAL_AS_NAMED_REFERENCE(name, str) Jupiter::ReferenceString name = Jupiter::ReferenceString(str, sizeof(str) - 1)
#include "Reference_String_Imp.h"
#endif // _REFERENCE_STRING_H_HEADER