Terminal control/Cursor movement: Difference between revisions
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=={{header|jq}}==
'''Adapted from [[#Wren|Wren]]'''
{{works with|jq}}
'''Also works with gojq, the Go implementation of jq, and with fq'''
The following relies on the ANSI terminal control codes. Unfortunately, as best I can tell,
horizontal cursor positioning via ANSI codes does not work in Terminal.app on a Mac.
Invocation: jq -nr --unbuffered -f cursor-movement.jq
<syntaxhighlight lang=jq>
# Be busy for at least the given number of seconds,
# and emit the actual number of seconds that have elapsed.
# The reason for defining sleep/1 is that it allows the idiom:
# E | F, (sleep(1) as $elapsed | CONTINUE_WITH_E_AS_INPUT)
def sleep($seconds):
now
| . as $now
| until( . - $now >= $seconds; now)
| . - $now ;
def demo:
def ESC: "\u001B";
def s: sleep(2) | empty;
"\(ESC)[2J", # clear terminal
"\(ESC)[12;40H", # move to (12, 40)
s,
"\(ESC)[D", # move left
s,
"\(ESC)[C", # move right
s,
"\(ESC)[A", # move up
s,
"\(ESC)[B", # move down
s,
"\(ESC)[G", # move to beginning of line
s,
"\(ESC)[79C", # move to end of line (assuming 80 column terminal)
s,
"\(ESC)[1;1H", # move to top left corner
s,
"\(ESC)[24;80H", # move to bottom right corner (assuming 80 x 24 terminal)
s,
"\(ESC)[1;1H" # home cursor again before quitting
;
demo
</syntaxhighlight>
=={{header|Julia}}==
{{trans|Kotlin}}
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