scratch/brainfuck/src/gbf/internal/token.gleam (view raw)
| 1 | pub type Token { |
| 2 | /// Everything that is not one of the tokens below, considered the be |
| 3 | /// a comment. |
| 4 | Comment(String) |
| 5 | |
| 6 | /// Increment the data pointer by one. |
| 7 | /// `>` symbol |
| 8 | IncrementPointer |
| 9 | |
| 10 | /// Decrement the data pointer by one. |
| 11 | /// `<` symbol |
| 12 | DecrementPointer |
| 13 | |
| 14 | /// Increment the byte at the data pointer by one. |
| 15 | /// `+` symbol |
| 16 | IncrementByte |
| 17 | |
| 18 | /// Decrement the byte at the data pointer by one. |
| 19 | /// `-` symbol |
| 20 | DecrementByte |
| 21 | |
| 22 | /// Output the byte at the data pointer. |
| 23 | /// `.` symbol |
| 24 | OutputByte |
| 25 | |
| 26 | /// Accept one byte of input, storing its value in the byte at the data pointer. |
| 27 | /// `,` symbol |
| 28 | InputByte |
| 29 | |
| 30 | /// If the byte at the data pointer is zero, then instead of moving the |
| 31 | /// instruction pointer forward to the next command, jump it forward to the |
| 32 | /// command after the matching ] command. |
| 33 | /// `[` symbol |
| 34 | StartBlock |
| 35 | |
| 36 | /// If the byte at the data pointer is nonzero, then instead of moving the |
| 37 | /// instruction pointer forward to the next command, jump it back to the |
| 38 | /// command after the matching [ command. |
| 39 | /// `]` symbol |
| 40 | EndBlock |
| 41 | |
| 42 | /// End of file |
| 43 | EndOfFile |
| 44 | } |