21 lines
594 B
Python
21 lines
594 B
Python
def main(buffer, command):
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if len(command) == 2 and (command[1].isdigit() or command[1] in {"^","$"}):
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if command[1].isdigit():
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dot = int(command[1])
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elif command[1] == "^":
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dot = buffer.carat()
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elif command[1] == "$":
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dot = buffer.dollar()
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elif len(command) == 3 and command[1] in {"+","-"} and command[2].isdigit():
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if command[1] == "+":
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dot = buffer.dot + int(command[2])
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elif command[1] == "-":
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dot = buffer.dot - int(command[2])
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if not("dot" in locals()) or dot < buffer.carat() or dot > buffer.dollar():
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print("?")
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else:
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buffer.dot = dot
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return buffer
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