roar/liboperators/OperatorFlipVertical.py

#!/usr/bin/env python3
#
# OperatorFlipVertical.py
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
#

from Operator import Operator

# TODO <https://en.wikipedia.org/wiki/Box_Drawing_(Unicode_block)>

class OperatorFlipVertical(Operator):
    name = "Flip"
    flipPairs = {
        "(":")", "/":"\\", "╱":"╲", "[":"]", "{":"}", "<":">", "`":"'",
        "▌":"▐", "▏":"▕",
        "▖":"▗", "▘":"▝",
        "▟":"▙", "▛":"▜", "▚":"▞",
    }

    def apply(self, region):
        for numRow in range(len(region)):
            region[numRow].reverse()
            for numCol in range(len(region[numRow])):
                if region[numRow][numCol][3] in self.flipPairs:
                    region[numRow][numCol][3] = self.flipPairs[region[numRow][numCol][3]]
        return region

    def __init__(self, *args):
        for flipPairKey in list(self.flipPairs.keys()):
            self.flipPairs[self.flipPairs[flipPairKey]] = flipPairKey

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