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/*
* Copyright 2024 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.
*/
#include <algorithm>
#include <array>
#include "support/name.h"
#include "support/string.h"
namespace wasm {
// TODO: Use unicode rather than char.
bool Name::isIDChar(char c) {
if ('0' <= c && c <= '9') {
return true;
}
if ('A' <= c && c <= 'Z') {
return true;
}
if ('a' <= c && c <= 'z') {
return true;
}
static std::array<char, 23> otherIDChars = {
{'!', '#', '$', '%', '&', '\'', '*', '+', '-', '.', '/', ':',
'<', '=', '>', '?', '@', '\\', '^', '_', '`', '|', '~'}};
return std::find(otherIDChars.begin(), otherIDChars.end(), c) !=
otherIDChars.end();
}
std::ostream& Name::print(std::ostream& o) const {
assert(*this && "Cannot print an empty name");
// We need to quote names if they have tricky chars.
// TODO: This is not spec-compliant since the spec does not yet support
// quoted identifiers and has a limited set of valid idchars.
o << '$';
if (size() >= 1 && std::all_of(str.begin(), str.end(), isIDChar)) {
return o << str;
} else {
return String::printEscaped(o, str);
}
}
} // namespace wasm
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