doublechars.sh revision d522f475 
1#!/bin/sh
2# $XFree86: xc/programs/xterm/vttests/doublechars.sh,v 1.5 2003/05/19 00:52:30 dickey Exp $
3#
4# -- Thomas Dickey (1999/7/7)
5# Illustrate the use of double-size characters by drawing successive lines in
6# the commonly used video attributes.
7#
8# Use the -w option to force the output to wrap.  It will look ugly, because
9# the double-high lines will be split.
10
11ESC=""
12CMD='echo'
13OPT='-n'
14SUF=''
15TMP=/tmp/xterm$$
16eval '$CMD $OPT >$TMP || echo fail >$TMP' 2>/dev/null
17( test ! -f $TMP || test -s $TMP ) &&
18for verb in printf print ; do
19    rm -f $TMP
20    eval '$verb "\c" >$TMP || echo fail >$TMP' 2>/dev/null
21    if test -f $TMP ; then
22	if test ! -s $TMP ; then
23	    CMD="$verb"
24	    OPT=
25	    SUF='\c'
26	    break
27	fi
28    fi
29done
30rm -f $TMP
31
32SAVE=yes
33WRAP=no
34if test $# != 0 ; then
35    while test $# != 0
36    do
37    	case $1 in
38	-n)	SAVE=no ;;
39	-w)	WRAP=yes ;;
40	esac
41	shift
42    done
43fi
44
45if test $SAVE = yes ; then
46    exec </dev/tty
47    old=`stty -g`
48    stty raw -echo min 0  time 5
49
50    $CMD $OPT "${ESC}[18t${SUF}" > /dev/tty
51    IFS=';' read junk high wide
52
53    stty $old
54
55    wide=`echo $wide|sed -e 's/t.*//'`
56    original=${ESC}[8\;${high}\;${wide}t${SUF}
57
58    if ( trap "echo exit" EXIT 2>/dev/null ) >/dev/null
59    then
60	trap '$CMD $OPT "$original" >/dev/tty; exit' EXIT HUP INT TRAP TERM
61    else
62	trap '$CMD $OPT "$original" >/dev/tty; exit' 0    1   2   5    15
63    fi
64
65fi
66
67if test $WRAP = yes ; then
68	# turn on wrapping and force the screen to 80 columns
69	$CMD $OPT "${ESC}[?7h" >/dev/tty
70	$CMD $OPT "${ESC}[?40l" >/dev/tty
71else
72	# force the screen to 132 columns
73	$CMD $OPT "${ESC}[?40h" >/dev/tty
74	$CMD $OPT "${ESC}[?3h" >/dev/tty
75fi
76
77for SGR in 0 1 4 5 7
78do
79	$CMD $OPT "${ESC}[0;${SGR}m" >/dev/tty
80	for DBL in 5 3 4 6 5
81	do
82		$CMD $OPT "${ESC}#${DBL}" >/dev/tty
83		echo "The quick brown fox jumps over the lazy dog" >/dev/tty
84	done
85	echo
86done
87$CMD $OPT "${ESC}[0m" >/dev/tty
88