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string.h
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string.h
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/*
* Copyright 2019 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// String helpers.
//
#ifndef wasm_support_string_h
#define wasm_support_string_h
#include <string>
#include <vector>
namespace wasm {
namespace String {
// Creates a vector of the split parts of a string, by a delimiter.
class Split : public std::vector<std::string> {
public:
Split(const std::string& input, const std::string& delim) {
size_t lastEnd = 0;
while (lastEnd < input.size()) {
auto nextDelim = input.find(delim, lastEnd);
if (nextDelim == std::string::npos) {
nextDelim = input.size();
}
(*this).push_back(input.substr(lastEnd, nextDelim - lastEnd));
lastEnd = nextDelim + delim.size();
}
}
};
// Does a simple wildcard match between a pattern and a value. Currently
// supports a '*' at the end of the pattern.
inline bool wildcardMatch(const std::string& pattern,
const std::string& value) {
for (size_t i = 0; i < pattern.size(); i++) {
if (i >= value.size()) {
return false;
}
if (pattern[i] == '*') {
return true;
}
if (pattern[i] != value[i]) {
return false;
}
}
return value.size() == pattern.size();
}
} // namespace String
} // namespace wasm
#endif // wasm_support_string_h