pwmcconv

#!/bin/bash
# This script's framework was created using makescript 
# version v1.0.3, dated 2019-07-19
# Makescript and its accompanying scripts are copyrighted
# by Aetesaki (c) 2018
# 
# letterconv (c) 2019 aetesaki
#
# ##################################################
# HISTORY:
# ##################################################
#
# * 2019-07-21 - v0.0.0  - First Creation
# * 2019-07-21 - v1.0.0  - First release
# * 2019-07-25 - v1.0.1  - converting letterconv to pwmcconv
#
# ##################################################
# Initializing constants and variables
# ##################################################
# Setting constants
version="v1.0.1"            # Sets version variable
lastEdited="2019-07-25"     # Sets last edited variable
[ ! -t 0 ] && pipe=$(cat)   # if stdin is open dump stdin to $pipe
# Declaring variables
declare conv # converted letter
# Declare array
declare -A letter
# Declare all variables to be used in the script 
# ##################################################
# short help function
# ##################################################
shorthelp() {
    # Edit as required
    cat << EOF
Usage: pwmcconv [letter or sign]
       pwmcconv --help
       pwmcconv --version"
EOF
}
# ##################################################
# no arguments gives short help
# ##################################################
# if number of arguments is 0
if [ "$#" == "0" ]; then
	# if length of $pipe is 0
	if [ -z "$pipe" ]; then
		# display shorthelp and exit
		shorthelp
		exit 1
	else
		# else set arguments to $pipe
		set -- "$pipe"
	fi
fi 
# ##################################################
# -- help
# ##################################################
# if the first argument is --help
if [ "$1" == "--help" ]; then
    shorthelp
    # Write options and explanations
    cat << EOF
    
   pwmcconv converts a single Delang letter or sign to Illomi Pulse
   Width Modulation Code, a pulse width modulation code akin to Samuel
   Morse's pulse width modulation code which bares his name (morse code)
    
   Note that the delang letters L, Z, and z, has to be prefixed with
   del.
   
   The following signs displays special codes:
   %		(SHIFT)
   ^		(START/END OF TRANSMISSION)
   = or +	(EMERGENCY)
   ~		(ATTENTION)
   
   Punctuation must be converted as following
   . (PERIOD)		%.%
   , (COMMA)		%,%
   ? (QUESTION MARK)	%?%
   ! (EXCLAMATION MARK)	%%%

   --help                 Displays this text and exit.
   --version              Displays the version of the script and exit.
      
EOF
    # Write information on arguments afterwards
    # Write examples as required
    exit 0
fi 
# ##################################################
# -- version
# ##################################################
# if the first argument is --version
if [ "$1" == "--version" ]; then
	# display the version text
    cat << EOF
pwmcconv ${version}, dated ${lastEdited}
(c) 2019 aetesaki
EOF
    exit 0
fi
# ##################################################
# Array setup section
# ##################################################
# Delang to pwmcconv
letter["А"]="▄▄"; letter["а"]="▄▄"
letter["Ҩ"]="▄▄ ▄▄▄▄ ▄▄"; letter["ҩ"]="▄▄ ▄▄▄▄ ▄▄"
letter["Б"]="▄▄▄▄ ▄▄ ▄▄ ▄▄ ▄▄"; letter["б"]="▄▄▄▄ ▄▄ ▄▄ ▄▄ ▄▄"
letter["З"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"; letter["з"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"
letter["Δ"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"; letter["δ"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"
letter["Е"]="▄▄ ▄▄"; letter["е"]="▄▄ ▄▄"
letter["Є"]="▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄"; letter["є"]="▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄"
letter["F"]="▄▄ ▄▄▄▄"; letter["ƒ"]="▄▄ ▄▄▄▄"
letter["Г"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄"; letter["г"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄"
letter["Ƕ"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"; letter["ƕ"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"
letter["І"]="▄▄▄▄"; letter["і"]="▄▄▄▄"
letter["Ј"]="▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"; letter["ј"]="▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄"
letter["К"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄"; letter["к"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄"
letter["Л"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄"; letter["л"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄"
letter["Љ"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"; letter["љ"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"
letter["М"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄"; letter["м"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
letter["Н"]="▄▄▄▄ ▄▄ ▄▄▄▄"; letter["н"]="▄▄▄▄ ▄▄ ▄▄▄▄"
letter["Њ"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄ ▄▄"; letter["њ"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄ ▄▄"
letter["О"]="▄▄ ▄▄ ▄▄ ▄▄"; letter["о"]="▄▄ ▄▄ ▄▄ ▄▄"
letter["П"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"; letter["п"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
letter["Ь"]="▄▄▄▄ ▄▄▄▄ ▄▄"; letter["Ь"]="▄▄▄▄ ▄▄▄▄ ▄▄"
letter["Ҍ"]="▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"; letter["ҍ"]="▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄"
letter["del L"]="▄▄▄▄ ▄▄▄▄"; letter["ł"]="▄▄▄▄ ▄▄▄▄"
letter["Ѕ"]="▄▄ ▄▄ ▄▄ ▄▄ ▄▄"; letter["ѕ"]="▄▄ ▄▄ ▄▄ ▄▄ ▄▄"
letter["del Z"]="▄▄▄▄ ▄▄ ▄▄ ▄▄ ▄▄▄▄"; letter["del z"]="▄▄▄▄ ▄▄ ▄▄ ▄▄ ▄▄▄▄"
letter["Т"]="▄▄▄▄ ▄▄"; letter["т"]="▄▄▄▄ ▄▄"
letter["И"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄"; letter["и"]="▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄"
letter["В"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄▄▄"; letter["в"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄▄▄"
letter["Ѡ"]="▄▄ ▄▄▄▄ ▄▄▄▄"; letter["ѡ"]="▄▄ ▄▄▄▄ ▄▄▄▄"
letter["Р"]="▄▄▄▄ ▄▄ ▄▄ ▄▄"; letter["р"]="▄▄▄▄ ▄▄ ▄▄ ▄▄"
letter["Y"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄"; letter["y"]="▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄"
letter["С"]="▄▄ ▄▄ ▄▄"; letter["с"]="▄▄ ▄▄ ▄▄"
letter["Ҫ"]="▄▄ ▄▄▄▄ ▄▄ ▄▄"; letter["ҫ"]="▄▄ ▄▄▄▄ ▄▄ ▄▄"
letter["ツ"]="▄▄▄▄ ▄▄ ▄▄"
letter["つ"]="▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄"
letter["〶"]="▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄"
# shift 
letter["%"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄" 
# start of transmission
letter["^"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄" 
# emergency codes
letter["="]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
letter["+"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
# attention code
letter["!"]="▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄▄▄ ▄▄ ▄▄ ▄▄▄▄ ▄▄"
# numbers
letter["1"]="▄▄"
letter["2"]="▄▄ ▄▄"
letter["3"]="▄▄ ▄▄ ▄▄"
letter["4"]="▄▄ ▄▄ ▄▄ ▄▄"
letter["5"]="▄▄ ▄▄ ▄▄ ▄▄ ▄▄"
letter["6"]="▄▄▄▄ ▄▄"
letter["7"]="▄▄▄▄ ▄▄ ▄▄"
letter["8"]="▄▄▄▄ ▄▄ ▄▄ ▄▄"
letter["9"]="▄▄▄▄ ▄▄ ▄▄ ▄▄ ▄▄"
letter["0"]="▄▄▄▄ ▄▄▄▄"
# punctuation
letter["%.%"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
letter["%,%"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄"
letter["%?%"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄" 
letter["%%%"]="▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄ ▄▄▄▄" 

# ##################################################
# Main section
# ##################################################
# Write your script here
# convert the letter
conv=${letter["$@"]}
# if $conv is empty
if [ -z "$conv" ]; then
	# display error message and exit
	echo "$@ is not a valid letter." >&2
	exit 1
fi
echo $conv