// Copyright (c) 2014 Rusty Wagner

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

// deal in the Software without restriction, including without limitation the

// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

// sell copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

// IN THE SOFTWARE.

#include "Encoding.h"

using namespace std;

EncodingField* EncodingField::CreateNormalField(const std::string& name, size_t width)

{

EncodingField* field = new EncodingField;

field->type = FIELD_NORMAL;

field->name = name;

field->width = width;

field->start = 0;

return field;

}

EncodingField* EncodingField::CreateDefaultValueField(const std::string& name, size_t width, int64_t value)

{

EncodingField* field = new EncodingField;

field->type = FIELD_DEFAULT_VALUE;

field->name = name;

field->width = width;

field->start = 0;

field->value = value;

return field;

}

EncodingField* EncodingField::CreateFixedValueField(size_t width, int64_t value)

{

EncodingField* field = new EncodingField;

field->type = FIELD_FIXED_VALUE;

field->width = width;

field->start = 0;

field->value = value;

return field;

}

Encoding::Encoding(): m_width(0)

{

}

bool Encoding::IsFieldDefined(const string& name) const

{

map<string, size_t>::const_iterator i = m_fieldsByName.find(name);

return i != m_fieldsByName.end();

}

size_t Encoding::GetFieldIndex(const string& name) const

{

map<string, size_t>::const_iterator i = m_fieldsByName.find(name);

return i->second;

}

void Encoding::AddField(const EncodingField& field)

{

for (vector<EncodingField>::iterator i = m_fields.begin(); i != m_fields.end(); i++)

i->start += field.width;

EncodingField copy = field;

copy.start = 0;

size_t idx = m_fields.size();

m_fields.push_back(copy);

if (field.type != FIELD_FIXED_VALUE)

m_fieldsByName[field.name] = idx;

m_width += field.width;

}