bsnes/nall/string/find.hpp

36 lines
1.3 KiB
C++

#pragma once
namespace nall {
auto string::contains(string_view characters) const -> maybe<uint> {
for(uint x : range(size())) {
for(char y : characters) {
if(operator[](x) == y) return x;
}
}
return nothing;
}
template<bool Insensitive, bool Quoted> auto string::_find(int offset, string_view source) const -> maybe<uint> {
if(source.size() == 0) return nothing;
auto p = data();
for(uint n = offset, quoted = 0; n < size();) {
if(Quoted) { if(p[n] == '\"') { quoted ^= 1; n++; continue; } if(quoted) { n++; continue; } }
if(_compare<Insensitive>(p + n, size() - n, source.data(), source.size())) { n++; continue; }
return n - offset;
}
return nothing;
}
auto string::find(string_view source) const -> maybe<uint> { return _find<0, 0>(0, source); }
auto string::ifind(string_view source) const -> maybe<uint> { return _find<1, 0>(0, source); }
auto string::qfind(string_view source) const -> maybe<uint> { return _find<0, 1>(0, source); }
auto string::iqfind(string_view source) const -> maybe<uint> { return _find<1, 1>(0, source); }
auto string::findFrom(int offset, string_view source) const -> maybe<uint> { return _find<0, 0>(offset, source); }
auto string::ifindFrom(int offset, string_view source) const -> maybe<uint> { return _find<1, 0>(offset, source); }
}