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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_STRINGVECTOR_HPP
#define INCLUDED_STRINGVECTOR_HPP
#include <string>
#include <vector>
/**
* Stores an offset and a length into the single underlying string of StringVector.
*/
struct StringToken
{
size_t _index;
size_t _length;
StringToken() = default;
StringToken(size_t index, size_t length)
: _index(index),
_length(length)
{
}
};
/**
* Safe wrapper around an std::vector<std::string>. Gives you an empty string if you would read past
* the ends of the vector.
*/
class StringVector
{
/// All tokens are substrings of this string.
std::string _string;
std::vector<StringToken> _tokens;
public:
explicit StringVector();
explicit StringVector(const std::string& string, const std::vector<StringToken>& tokens);
/// Unlike std::vector, gives an empty string if index is unexpected.
std::string operator[](size_t index) const;
size_t size() const;
bool empty() const;
std::vector<StringToken>::const_iterator begin() const;
std::vector<StringToken>::iterator begin();
std::vector<StringToken>::const_iterator end() const;
std::vector<StringToken>::iterator end();
std::vector<StringToken>::iterator erase(std::vector<StringToken>::const_iterator it);
void push_back(const std::string& string);
/// Gets the underlying string of a single token.
std::string getParam(const StringToken& token) const;
/// Concats tokens starting from begin, using separator as separator.
std::string cat(const std::string& separator, size_t begin) const;
/// Compares the nth token with string.
bool equals(size_t index, const char* string) const;
/// Compares the nth token with the mth token from an other StringVector.
bool equals(size_t index, const StringVector& other, size_t otherIndex);
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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