layout-inverter

#!/bin/bash

# First attemtp to mimic Caramba Switcher for Linux

# There is an issue:
# only selected by mouse goes to primary, but not selection by ctrl+shift+arrow.
# Because I did not found a way how to write to primary using keyboard selection
# I will temporary use ctrl+c to clipboard.
xsel --clipboard --output | xsel --secondary --input # save user's clipboard
sleep 0.2
xdotool key ctrl+c
sleep 0.2
xsel --clipboard --output | xsel --primary --input # send clipboard to primary
sleep 0.2
xsel --secondary --output | xsel --clipboard --input # and restore user's clipboard
# xsel -sc # just to keep it clear, not necessary


SOURCE_STRING=`xclip -o`
# SOURCE_STRING="Ghbdtn привет" # for debugging
# echo $SOURCE_STRING

# https://unix.stackexchange.com/questions/360571/is-there-any-library-or-tool-to-translate-string-from-one-keyboard-layout-to-a

RESULT_STRING=$( echo "$SOURCE_STRING" | iconv -t cp1251 | tr \
    $(echo "[йцукенгшщзхъфывапролджэ\\ячсмитьбю.ЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭ/ЯЧСМИТЬБЮ,\"№;:?Ёёqwertyuiop\[\]asdfghjkl;'\\zxcvbnm,./QWERTYUIOP{}ASDFGHJKL:\"|ZXCVBNM<>?@#$^&~\`" | iconv -t cp1251) \
    $(echo "[qwertyuiop\[\]asdfghjkl;'\\zxcvbnm,./QWERTYUIOP{}ASDFGHJKL:\"|ZXCVBNM<>?@#$^&~\`йцукенгшщзхъфывапролджэ\\ячсмитьбю.ЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭ/ЯЧСМИТЬБЮ,\"№;:?Ёё]" | iconv -t cp1251) \
    | iconv -f WINDOWS-1251 -t UTF-8 )

# echo ghbdtn | iconv -t cp1251 | tr g $(echo "п" | iconv -t cp1251) | iconv -f WINDOWS-1251 -t UTF-8 # это работает!

# echo RESULT_STRING=$RESULT_STRING

xclip -i <<< $RESULT_STRING

sleep 0.5 # do not remove
xdotool key Delete type --clearmodifiers --delay 0  "`xsel -o`" # without delete key it messes up the first letter of insertion

# This is for watching at selections (for debugging). Run from separate terminal.
# watch -n0.2 'echo -e "CLIPBOARD=`xsel -bo`\nPRIMARY=`xsel -po`\nSECONDARY=`xsel -so`"'