bsnes/nall/string/find.hpp

31 lines
1.2 KiB
C++

#ifdef NALL_STRING_INTERNAL_HPP
namespace nall {
template<bool Insensitive, bool Quoted> auto _find(const string& self, signed offset, rstring source) -> maybe<unsigned> {
if(source.size() == 0) return nothing;
const char* p = self.data();
unsigned size = self.size();
for(unsigned 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 find(const string& self, rstring source) -> maybe<unsigned> { return _find<0, 0>(self, 0, source); }
auto ifind(const string& self, rstring source) -> maybe<unsigned> { return _find<1, 0>(self, 0, source); }
auto qfind(const string& self, rstring source) -> maybe<unsigned> { return _find<0, 1>(self, 0, source); }
auto iqfind(const string& self, rstring source) -> maybe<unsigned> { return _find<1, 1>(self, 0, source); }
auto findFrom(const string& self, signed offset, rstring source) -> maybe<unsigned> { return _find<0, 0>(self, offset, source); }
auto ifindFrom(const string& self, signed offset, rstring source) -> maybe<unsigned> { return _find<1, 0>(self, offset, source); }
}
#endif