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See:
Description
| Class Summary | |
| Add | |
| Assignment | |
| Back | |
| Clean | |
| Clearscreen | |
| Fence | |
| Forward | |
| FuncVarFactory | Clients can use this class to obtain a unique variable per identifier (avoiding a proliferation of objects) |
| FuncVariable | A variable stores a value and can be used in an expression. |
| Hideturtle | |
| Home | |
| If | |
| Instruction | |
| Jump | |
| Left | |
| Pendown | |
| Penup | |
| Repeat | |
| Right | |
| Setbackground | |
| Setbg | |
| Seth | |
| Setheading | |
| Setpalette | |
| Setpc | |
| Setpencolor | |
| Setpensize | |
| Setps | |
| Setsh | |
| Setshape | |
| Setx | |
| Setxy | |
| Sety | |
| Showturtle | |
| StrictInstructionList | |
| Tell | |
| To | |
| Window | |
| Wrap | |
Instruction classes each represent a language construct in an AST form.
Evaluating an expression (via the evaluate method) causes the
instruction to be executed and the value of executing the instruction to
be returned.
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