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slices.cpp
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slices.cpp
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// Copyright 2022 Alan Tracey Wootton
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 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. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "slices.h"
#include "knotbase64.h"
namespace knotfree
{
const char * slice::emptyStr = "";
slice::slice(sink s)
{
base = s.base;
start = 0;
end = s.start;
}
char *slice::gethexstr(char *buffer, int max)
{
buffer[0] = 0;
if (empty())
{
buffer[0] = 0;
return &buffer[0];
}
int amt = hex::encode((unsigned char *)&base[start], size(), buffer, max - 1);
buffer[amt] = 0;
return &buffer[0];
};
void slice::gethexstr(sink dest)
{
if (empty())
{
return;
}
dest.writeByte(0);
int amt = hex::encode((unsigned char *)&base[start], size(), &dest.base[dest.start], dest.size());
dest.start += amt;
};
char *slice::getCstr(char *buffer, int max)
{
if (empty() == false)
{
int amount = size();
if (amount + 1 > max)
{
amount = max - 1;
}
int i = 0;
for (; i < amount; i++)
{
(buffer)[i] = base[start + i];
}
buffer[i] = 0;
}
return &buffer[0];
}
} // namespace knotfree