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// Copyright 2019 Roman Perepelitsa.
//
// This file is part of GitStatus.
//
// GitStatus 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.
//
// GitStatus 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 GitStatus. If not, see <https://www.gnu.org/licenses/>.
#include <cassert>
#include "strings.h"
namespace gitstatus {
void CEscape(std::ostream& strm, const char* begin, const char* end) {
assert(!begin == !end);
if (!begin) return;
for (; begin != end; ++begin) {
const unsigned char c = *begin;
switch (c) {
case '\t':
strm << "\\t";
continue;
case '\n':
strm << "\\n";
continue;
case '\r':
strm << "\\r";
continue;
case '"':
strm << "\\\"";
continue;
case '\'':
strm << "\\'";
continue;
case '\\':
strm << "\\\\";
continue;
}
if (c > 31 && c < 127) {
strm << c;
continue;
}
strm << '\\';
strm << static_cast<char>('0' + ((c >> 6) & 7));
strm << static_cast<char>('0' + ((c >> 3) & 7));
strm << static_cast<char>('0' + ((c >> 0) & 7));
}
}
void Quote(std::ostream& strm, const char* begin, const char* end) {
assert(!begin == !end);
if (!begin) {
strm << "null";
return;
}
strm << '"';
CEscape(strm, begin, end);
strm << '"';
}
} // namespace gitstatus
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