fonts.sh revision 2e4f8982 
1#!/bin/sh
2# $XTermId: fonts.sh,v 1.12 2015/08/10 20:43:05 tom Exp $
3# -----------------------------------------------------------------------------
4# this file is part of xterm
5#
6# Copyright 1999-2011,2015 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# Demonstrate control sequence which sets relative fonts.
35
36ESC=""
37CMD='/bin/echo'
38OPT='-n'
39SUF=''
40TMP=/tmp/xterm$$
41eval '$CMD $OPT >$TMP || echo fail >$TMP' 2>/dev/null
42( test ! -f $TMP || test -s $TMP ) &&
43for verb in printf print ; do
44    rm -f $TMP
45    eval '$verb "\c" >$TMP || echo fail >$TMP' 2>/dev/null
46    if test -f $TMP ; then
47	if test ! -s $TMP ; then
48	    CMD="$verb"
49	    OPT=
50	    SUF='\c'
51	    break
52	fi
53    fi
54done
55rm -f $TMP
56
57exec </dev/tty
58old=`stty -g`
59stty raw -echo min 0  time 5
60
61$CMD $OPT "${ESC}]50;?${SUF}" > /dev/tty
62read original
63
64stty $old
65original="${original}${SUF}"
66
67if ( trap "echo exit" EXIT 2>/dev/null ) >/dev/null
68then
69    trap '$CMD $OPT "$original" >/dev/tty; exit' EXIT HUP INT TRAP TERM
70else
71    trap '$CMD $OPT "$original" >/dev/tty; exit' 0    1   2   5    15
72fi
73
74F=1
75D=1
76T=6
77while true
78do
79    $CMD $OPT "${ESC}]50;#$F${SUF}" >/dev/tty
80    #sleep 1
81    if test .$D = .1 ; then
82	test $F = $T && D=-1
83    else
84	test $F = 1 && D=1
85    fi
86    F=`expr $F + $D`
87done
88