lang/ucblogo 6.0 OpenBSD

ucblogo is the Berkeley interpreter for the Logo programming language.

Special features of this dialect are:

• Random-access arrays.
• Variable number of inputs to user-defined procedures.
• Mutators for list structure (dangerous).
• Pause on error, and other improvements to error handling.
• Comments and continuation lines; formatting is preserved when procedure definitions are saved or edited.
• Terrapin-style tokenization (e.g., [2+3] is a list with one member) but LCSI-style syntax (no special forms except TO). The best of both worlds.
• First-class instruction and expression templates.
• Macros.