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// -*- C++ -*-
// Copyright (C) 2013, Gabriel Dos Reis.
// All rights reserved.
// Written by Gabriel Dos Reis.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
//
// - Neither the name of OpenAxiom, nor the names of its contributors may
// be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef OPENAXIOM_INPUT_included
#define OPENAXIOM_INPUT_included
#include <iterator>
#include <string>
#include <vector>
#include "open-axiom.h"
#include <open-axiom/structure>
#include <open-axiom/iterator>
namespace OpenAxiom {
namespace Input {
// -- Input text data
using Text = std::string;
// -- Type of Thingies that iterate over text values
using TextIterator = Text::const_iterator;
// -- Position of an input source line.
using LineNumber = Ordinal;
// -- We keep info only for non-empty input lines.
struct NonEmptyLine : private structure::binary<LineNumber, Text> {
NonEmptyLine(LineNumber, const Text&);
LineNumber number() const { return first(); }
const Text& text() const { return second(); }
TextIterator begin() const { return text().begin(); }
TextIterator end() const { return text().end(); }
std::size_t size() const { return text().size(); }
};
struct Source;
// -- Index into input source lines --
using Index = std::size_t;
// -- Line --
struct Line : private structure::binary<const Source*, Index> {
using value_type = Text::value_type;
using const_reference = Text::const_reference;
using const_pointer = Text::const_pointer;
using difference_type = Text::difference_type;
using iterator = iterator::basic<Line>;
const NonEmptyLine& get() const;
const Text& text() const { return get().text(); }
LineNumber number() const { return get().number(); }
iterator begin() const { return { this, 0 }; }
iterator end() const { return { this, size() }; }
Cardinal size() const { return text().size(); }
const_reference at(Ordinal n) const { return text().at(n); }
private:
constexpr Line(const Source* s, Index i)
: structure::binary<const Source*, Index>(s, i)
{ }
const Source* source() const { return first(); }
Index index() const { return second(); }
friend Source;
};
// -- LineIterator --
using LineIterator = Line::iterator;
// -- Source --
struct Source : std::vector<NonEmptyLine> {
using iterator = OpenAxiom::iterator::basic<Source>;
using Index = Ordinal; // line index
Line line(Index i) const { return { this, i }; }
iterator begin() const { return { this, 0 }; }
iterator end() const { return { this, size() }; }
Line line(LineNumber, const Text&);
};
// -- Span --
struct Span : structure::binary<Ordinal, Cardinal> {
constexpr Span(Ordinal c, Cardinal l)
: structure::binary<Ordinal>(c, l) { }
constexpr Ordinal column() const { return first(); }
constexpr Cardinal size() const { return second(); }
};
}
}
#endif // OPENAXIOM_INPUT_included
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