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erase.pl
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erase.pl
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#!/usr/bin/perl
# 消去系のエスケープシーケンスのテスト
# テストの動作のポイント
# - マウスで選択した領域が描画後も残ったままになる
# - 2cell文字が半分残った状態にならない
use utf8;
use strict;
use warnings;
local $| = 1;
binmode STDOUT, ':encoding(UTF-8)';
sub Wait() {
print("[[hit return key]]");
my $s = <STDIN>;
}
sub Fill {
my $ys = shift;
my $ye = shift;
#print "\x1b[2J";
print "\x1b[1;1H";
my $wide_count = 0;
for (my $y = $ys; $y < $ye; $y++) {
if (($y % 3) == 0) {
for (my $x = 0; $x < 80; $x++) {
printf("%d", $x %10);
}
} else {
my $w = 40 - ($wide_count % 2);
printf("-") if $w != 40;
for (my $x = 0; $x < $w; $x++) {
printf("%s", substr("□■", ($x) % 2, 1));
}
printf("-") if $w != 40;
$wide_count++;
}
}
print "\x1b[10;1H";
}
sub EL {
my $ps = shift;
Fill(0, 10);
print "\x1b[1;40H\x1b[${ps}K";
print "\x1b[2;40H\x1b[${ps}K";
print "\x1b[3;40H\x1b[${ps}K";
print "\x1b[4;39H ^cursor pos ";
print "\n";
Wait();
}
sub ECH {
Fill(0, 10);
print "\x1b[1;40H\x1b[10X";
print "\x1b[2;40H\x1b[10X";
print "\x1b[3;40H\x1b[10X";
print "\x1b[4;40H\x1b[9X";
print "\x1b[5;40H\x1b[9X";
print "\x1b[6;40H\x1b[9X";
print "\x1b[7;39H ^cursor pos ";
print "\n";
Wait();
}
sub ED {
my $ps = shift;
for (my $y = 7; $y < 14; $y++) {
Fill(0, 20);
print "\x1b[1;1H\n";
print "\x1b[${y};40H\x1b[${ps}J";
print "\x1b[1;1H\n";
Wait();
}
}
my $arg = (@ARGV != 0) ? $ARGV[0] : "";
print "\x1b[0m";
print "ERASE test\n";
FINISH:
for(;;)
{
my $s;
if (length($arg) != 0) {
print "> $arg\n";
$s = $arg;
$arg = "";
} else {
print <<EOF;
1 EL 0
2 EL 1
3 EL 2
4 ECH
5 ED 0
6 ED 1
q quit
EOF
print "> ";
$s = <STDIN>;
}
$s =~ s/[\n\r]//g;
for(;;) {
if (length($s) == 0) {
last;
#next FINISH;
}
my $c = substr($s, 0, 1);
$s = substr($s, 1);
if ($c eq 'q') {
last FINISH;
} elsif ($c eq '1') {
EL(0);
} elsif ($c eq '2') {
EL(1);
} elsif ($c eq '3') {
EL(2);
} elsif ($c eq '4') {
ECH(2);
} elsif ($c eq '5') {
ED(0);
} elsif ($c eq '6') {
ED(1);
} else {
print "'$c' ?\n"
}
}
}
print "\x1b[2J";
print "\x1b[1;1H";
print "\x1b[0m";
print "finish\n";