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Head Directions

In Varphi, head movement directions are represented using uppercase letters:

The characters "l" and "r" (lowercase "L" and "R") are not interpreted as "left" and "right" by the lexer, and will result in a syntax error.

In Varphi, head movement directions are represented using uppercase letters:

The characters "l" and "r" (lowercase "L" and "R") are not interpreted as "left" and "right" by the lexer, and will result in a syntax error.