doublechars.sh revision 20d2c4d2 
1#!/bin/sh
2# $XTermId: doublechars.sh,v 1.16 2003/05/19 00:52:30 tom Exp $
3# -----------------------------------------------------------------------------
4# this file is part of xterm
5#
6# Copyright 1999-2002,2003 by Thomas E. Dickey
7# 
8#                         All Rights Reserved
9# 
10# Permission is hereby granted, free of charge, to any person obtaining a
11# copy of this software and associated documentation files (the
12# "Software"), to deal in the Software without restriction, including
13# without limitation the rights to use, copy, modify, merge, publish,
14# distribute, sublicense, and/or sell copies of the Software, and to
15# permit persons to whom the Software is furnished to do so, subject to
16# the following conditions:
17# 
18# The above copyright notice and this permission notice shall be included
19# in all copies or substantial portions of the Software.
20# 
21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
25# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28# 
29# Except as contained in this notice, the name(s) of the above copyright
30# holders shall not be used in advertising or otherwise to promote the
31# sale, use or other dealings in this Software without prior written
32# authorization.
33# -----------------------------------------------------------------------------
34# Illustrate the use of double-size characters by drawing successive lines in
35# the commonly used video attributes.
36#
37# Use the -w option to force the output to wrap.  It will look ugly, because
38# the double-high lines will be split.
39
40ESC=""
41CMD='echo'
42OPT='-n'
43SUF=''
44TMP=/tmp/xterm$$
45eval '$CMD $OPT >$TMP || echo fail >$TMP' 2>/dev/null
46( test ! -f $TMP || test -s $TMP ) &&
47for verb in printf print ; do
48    rm -f $TMP
49    eval '$verb "\c" >$TMP || echo fail >$TMP' 2>/dev/null
50    if test -f $TMP ; then
51	if test ! -s $TMP ; then
52	    CMD="$verb"
53	    OPT=
54	    SUF='\c'
55	    break
56	fi
57    fi
58done
59rm -f $TMP
60
61SAVE=yes
62WRAP=no
63if test $# != 0 ; then
64    while test $# != 0
65    do
66    	case $1 in
67	-n)	SAVE=no ;;
68	-w)	WRAP=yes ;;
69	esac
70	shift
71    done
72fi
73
74if test $SAVE = yes ; then
75    exec </dev/tty
76    old=`stty -g`
77    stty raw -echo min 0  time 5
78
79    $CMD $OPT "${ESC}[18t${SUF}" > /dev/tty
80    IFS=';' read junk high wide
81
82    stty $old
83
84    wide=`echo $wide|sed -e 's/t.*//'`
85    original=${ESC}[8\;${high}\;${wide}t${SUF}
86
87    if ( trap "echo exit" EXIT 2>/dev/null ) >/dev/null
88    then
89	trap '$CMD $OPT "$original" >/dev/tty; exit' EXIT HUP INT TRAP TERM
90    else
91	trap '$CMD $OPT "$original" >/dev/tty; exit' 0    1   2   5    15
92    fi
93
94fi
95
96if test $WRAP = yes ; then
97	# turn on wrapping and force the screen to 80 columns
98	$CMD $OPT "${ESC}[?7h" >/dev/tty
99	$CMD $OPT "${ESC}[?40l" >/dev/tty
100else
101	# force the screen to 132 columns
102	$CMD $OPT "${ESC}[?40h" >/dev/tty
103	$CMD $OPT "${ESC}[?3h" >/dev/tty
104fi
105
106for SGR in 0 1 4 5 7
107do
108	$CMD $OPT "${ESC}[0;${SGR}m" >/dev/tty
109	for DBL in 5 3 4 6 5
110	do
111		$CMD $OPT "${ESC}#${DBL}" >/dev/tty
112		echo "The quick brown fox jumps over the lazy dog" >/dev/tty
113	done
114	echo
115done
116$CMD $OPT "${ESC}[0m" >/dev/tty
117