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62 lines
1.2 KiB
62 lines
1.2 KiB
2 years ago
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#!/usr/bin/env sh
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# This magical knowledge of textual cantrips allows for powerful cursor prestidigitation,
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# allowing you to control the position and appearance of the terminal cursor.
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# Use these variables to move the cursor around the screen,
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# hide and show it, and save and restore its position.
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#
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# Example usage:
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# printf "$SAVE_CURSOR"
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# printf "$MOVE_UP"
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# printf "$MOVE_LEFT"
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# printf "Hello, world!"
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# printf "$RESTORE_CURSOR"
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# Clearing
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CLEAR_SCREEN="\033[2J"
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CLEAR_LINE="\033[K"
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# Save cursor position
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SAVE_CURSOR="\033[s"
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# Restore cursor position
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RESTORE_CURSOR="\033[u"
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# Move cursor (one line/column)
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MOVE_UP="\033[A"
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MOVE_DOWN="\033[B"
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MOVE_RIGHT="\033[C"
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MOVE_LEFT="\033[D"
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# Move cursor to column n
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# usage: move_to_column n
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move_to_column() {
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echo -en "\033[${1}G"
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}
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# Move cursor to row n
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# usage: move_to_row n
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move_to_row() {
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echo -en "\033[${1}H"
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}
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# Move cursor to row n, column m
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# usage: move_to_xy n m
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move_to_xy() {
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echo -en "\033[${1};${2}H"
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}
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# Hide and show cursor
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HIDE_CURSOR="\033[?25l"
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SHOW_CURSOR="\033[?25h"
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# Scrolling
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SCROLL_SCREEN="\033[S"
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REVERSE_SCROLL_SCREEN="\033[T"
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# Set scrolling region
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# usage: set_scroll_region top bottom
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set_scroll_region() {
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echo -en "\033[${1};${2}r"
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}
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