Plan 9 from Bell Labs’s /usr/web/sources/contrib/anothy/bin/rc/b2a

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#!/bin/rc

# baudot to ascii
# from boyd roberts' sh version, /n/sources/contrib/boyd/sys/src/cmd/b2a.html

awk '
BEGIN   {
        letters["| o o .       |"] = "A"
        figures["| o o .       |"] = "-"
        letters["| o   .   o o |"] = "B"
        figures["| o   .   o o |"] = "?"
        letters["|   o . o o   |"] = "C"
        figures["|   o . o o   |"] = ":"
        letters["| o   .   o   |"] = "D"
        figures["| o   .   o   |"] = "$"
        letters["| o   .       |"] = "E"
        figures["| o   .       |"] = "3"
        letters["| o   . o o   |"] = "F"
        figures["| o   . o o   |"] = "!"
        letters["|   o .   o o |"] = "G"
        figures["|   o .   o o |"] = "&"
        letters["|     . o   o |"] = "H"
        figures["|     . o   o |"] = "STOP"
        letters["|   o . o     |"] = "I"
        figures["|   o . o     |"] = "8"
        letters["| o o .   o   |"] = "J"
        figures["| o o .   o   |"] = "\''"
        letters["| o o . o o   |"] = "K"
        figures["| o o . o o   |"] = "("
        letters["|   o .     o |"] = "L"
        figures["|   o .     o |"] = ")"
        letters["|     . o o o |"] = "M"
        figures["|     . o o o |"] = "."
        letters["|     . o o   |"] = "N"
        figures["|     . o o   |"] = ","
        letters["|     .   o o |"] = "O"
        figures["|     .   o o |"] = "9"
        letters["|   o . o   o |"] = "P"
        figures["|   o . o   o |"] = "0"
        letters["| o o . o   o |"] = "Q"
        figures["| o o . o   o |"] = "1"
        letters["|   o .   o   |"] = "R"
        figures["|   o .   o   |"] = "4"
        letters["| o   . o     |"] = "S"
        figures["| o   . o     |"] = "BELL"
        letters["|     .     o |"] = "T"
        figures["|     .     o |"] = "5"
        letters["| o o . o     |"] = "U"
        figures["| o o . o     |"] = "7"
        letters["|   o . o o o |"] = "V"
        figures["|   o . o o o |"] = ";"
        letters["| o o .     o |"] = "W"
        figures["| o o .     o |"] = "2"
        letters["| o   . o o o |"] = "X"
        figures["| o   . o o o |"] = "/"
        letters["| o   . o   o |"] = "Y"
        figures["| o   . o   o |"] = "6"
        letters["| o   .     o |"] = "Z"
        figures["| o   .     o |"] = "\""
        letters["|     .       |"] = ""
        figures["|     .       |"] = ""
        letters["|     .   o   |"] = "\r"
        figures["|     .   o   |"] = "\r"
        letters["|   o .       |"] = "\n"
        figures["|   o .       |"] = "\n"
        letters["|     . o     |"] = " "
        figures["|     . o     |"] = " "
        letters["| o o . o o o |"] = "LTRS"
        figures["| o o . o o o |"] = "LTRS"
        letters["| o o .   o o |"] = "FIGS"
        figures["| o o .   o o |"] = "FIGS"
        end =   "|-------------|"

        figs = 0
}

#$0 == end      { next }

figs != 0 && figures[$0] == "LTRS" {
        figs = 0
        next
}

figs == 0 && letters[$0] == "FIGS" {
        figs = 1
        next
}

{
        if (figs)
        {
                if (figures[$0] == "BELL")
                        printf("%c", "\007")
                else
                        printf("%s", figures[$0])
        }
        else
                printf("%s", letters[$0])
                
}
' | tr '[A-Z]' '[a-z]'

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