122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#include "view.hpp"
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#include "debug.hpp"
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#include <cstring>
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#include <iterator>
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//-----------------------------------------------------------------------------
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util::view::view ():
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m_begin (nullptr),
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m_end (nullptr)
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{ ; }
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//-----------------------------------------------------------------------------
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util::view::view (const char *str):
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m_begin (str),
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m_end (str + strlen (str))
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{ ; }
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//-----------------------------------------------------------------------------
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util::view::view (const char *_begin,
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const char *_end):
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m_begin (_begin),
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m_end (_end)
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{ ; }
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//-----------------------------------------------------------------------------
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const char*
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util::view::begin (void) const
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{
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return m_begin;
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}
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//-----------------------------------------------------------------------------
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const char*
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util::view::end (void) const
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{
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return m_end;
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}
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//-----------------------------------------------------------------------------
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bool
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util::view::view::empty (void) const
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{
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return m_begin == nullptr ||
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m_end == nullptr ||
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m_begin == m_end;
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}
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//-----------------------------------------------------------------------------
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size_t
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util::view::size (void) const
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{
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return m_end - m_begin;
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}
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//-----------------------------------------------------------------------------
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const char&
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util::view::operator[] (size_t idx) const
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{
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CHECK_LT (m_begin + idx, m_end);
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return m_begin[idx];
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}
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//-----------------------------------------------------------------------------
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bool
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util::view::operator== (const char *restrict rhs) const
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{
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return strlen (rhs) == size () &&
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0 == strncmp (rhs, m_begin, size ());
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}
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//-----------------------------------------------------------------------------
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bool
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util::view::operator== (view v) const
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{
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return std::equal (m_begin, m_end, v.begin ());
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}
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//-----------------------------------------------------------------------------
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std::ostream&
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util::operator<< (std::ostream &os, util::view s)
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{
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std::copy (s.begin (), s.end (), std::ostream_iterator<char> (os));
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return os;
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}
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//-----------------------------------------------------------------------------
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bool
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util::operator== (const char *str, view v)
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{
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return v == str;
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}
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