| 299 | } |
| 300 | |
| 301 | bool Stream::_ReadAheadTo(size_t i) const { |
| 302 | while (m_input.good() && (m_readahead.size() <= i)) { |
| 303 | switch (m_charSet) { |
| 304 | case utf8: |
| 305 | StreamInUtf8(); |
| 306 | break; |
| 307 | case utf16le: |
| 308 | StreamInUtf16(); |
| 309 | break; |
| 310 | case utf16be: |
| 311 | StreamInUtf16(); |
| 312 | break; |
| 313 | case utf32le: |
| 314 | StreamInUtf32(); |
| 315 | break; |
| 316 | case utf32be: |
| 317 | StreamInUtf32(); |
| 318 | break; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | // signal end of stream |
| 323 | if (!m_input.good()) |
| 324 | m_readahead.push_back(Stream::eof()); |
| 325 | |
| 326 | return m_readahead.size() > i; |
| 327 | } |
| 328 | |
| 329 | void Stream::StreamInUtf8() const { |
| 330 | unsigned char b = GetNextByte(); |