You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1017 B
46 lines
1017 B
2 years ago
|
#!/bin/sh
|
||
|
|
|
||
|
|
# A cantrip to clear the user's current input lines in the terminal, including
|
||
|
|
# the terminal prompt.
|
||
|
|
#
|
||
|
|
# Cast this spell to erase the user's current input lines, leaving the terminal
|
||
|
|
# ready for a new command.
|
||
|
|
|
||
|
|
# todo: modify this to use our cursor file
|
||
|
|
|
||
|
|
clear_input_lines() {
|
||
|
|
# Save the current cursor position
|
||
|
|
printf '\033[s'
|
||
|
|
|
||
|
|
# Move the cursor to the beginning of the line
|
||
|
|
printf '\033[1G'
|
||
|
|
|
||
|
|
# Clear the current line
|
||
|
|
printf '\033[2K'
|
||
|
|
|
||
|
|
# Calculate the number of lines used by the user's input
|
||
|
|
lines="$(current_input_lines)"
|
||
|
|
|
||
|
|
# Clear the remaining lines
|
||
|
|
i=1
|
||
|
|
while [ "$i" -lt "$lines" ]; do
|
||
|
|
# Move the cursor down one line
|
||
|
|
printf '\033[1B'
|
||
|
|
|
||
|
|
# Clear the current line
|
||
|
|
printf '\033[2K'
|
||
|
|
|
||
|
|
# Increment the counter
|
||
|
|
i=$(( i + 1 ))
|
||
|
|
done
|
||
|
|
|
||
|
|
# Restore the cursor position
|
||
|
|
printf '\033[u'
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check if the script is being executed or sourced
|
||
|
|
if [ "$0" = "$BASH_SOURCE" ]; then
|
||
|
|
# Script is being executed, call the clear_input_lines function
|
||
|
|
clear_input_lines
|
||
|
|
fi
|