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/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
#include "support/StringUtils.h"
namespace antlrcpp {
std::string escapeWhitespace(std::string_view in) {
std::string out;
escapeWhitespace(out, in);
out.shrink_to_fit();
return out;
}
std::string& escapeWhitespace(std::string& out, std::string_view in) {
out.reserve(in.size()); // Best case, no escaping.
for (const auto &c : in) {
switch (c) {
case '\t':
out.append("\\t");
break;
case '\r':
out.append("\\r");
break;
case '\n':
out.append("\\n");
break;
default:
out.push_back(c);
break;
}
}
return out;
}
} // namespace antrlcpp
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