Viewing file:  termcap.pl (4.02 KB) -rw-r--r--
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;# $RCSfile: termcap.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:16 $
#
# This library is no longer being maintained, and is included for backward
# compatibility with Perl 4 programs which may require it.
#
# In particular, this should not be used as an example of modern Perl
# programming techniques.
#
# Suggested alternative: Term::Cap
#
;#
;# Usage:
;# require 'ioctl.pl';
;# ioctl(TTY,$TIOCGETP,$foo);
;# ($ispeed,$ospeed) = unpack('cc',$foo);
;# require 'termcap.pl';
;# &Tgetent('vt100'); # sets $TC{'cm'}, etc.
;# &Tputs(&Tgoto($TC{'cm'},$col,$row), 0, 'FILEHANDLE');
;# &Tputs($TC{'dl'},$affcnt,'FILEHANDLE');
;#
sub Tgetent {
local($TERM) = @_;
local($TERMCAP,$_,$entry,$loop,$field);
# warn "Tgetent: no ospeed set" unless $ospeed;
foreach $key (keys %TC) {
delete $TC{$key};
}
$TERM = $ENV{'TERM'} unless $TERM;
$TERM =~ s/(\W)/\\$1/g;
$TERMCAP = $ENV{'TERMCAP'};
$TERMCAP = '/etc/termcap' unless $TERMCAP;
if ($TERMCAP !~ m:^/:) {
if ($TERMCAP !~ /(^|\|)$TERM[:\|]/) {
$TERMCAP = '/etc/termcap';
}
}
if ($TERMCAP =~ m:^/:) {
$entry = '';
do {
$loop = "
open(TERMCAP,'<$TERMCAP') || die \"Can't open $TERMCAP\";
while (<TERMCAP>) {
next if /^#/;
next if /^\t/;
if (/(^|\\|)${TERM}[:\\|]/) {
chop;
while (chop eq '\\\\') {
\$_ .= <TERMCAP>;
chop;
}
\$_ .= ':';
last;
}
}
close TERMCAP;
\$entry .= \$_;
";
eval $loop;
} while s/:tc=([^:]+):/:/ && ($TERM = $1);
$TERMCAP = $entry;
}
foreach $field (split(/:[\s:\\]*/,$TERMCAP)) {
if ($field =~ /^\w\w$/) {
$TC{$field} = 1;
}
elsif ($field =~ /^(\w\w)#(.*)/) {
$TC{$1} = $2 if $TC{$1} eq '';
}
elsif ($field =~ /^(\w\w)=(.*)/) {
$entry = $1;
$_ = $2;
s/\\E/\033/g;
s/\\(200)/pack('c',0)/eg; # NUL character
s/\\(0\d\d)/pack('c',oct($1))/eg; # octal
s/\\(0x[0-9A-Fa-f][0-9A-Fa-f])/pack('c',hex($1))/eg; # hex
s/\\(\d\d\d)/pack('c',$1 & 0177)/eg;
s/\\n/\n/g;
s/\\r/\r/g;
s/\\t/\t/g;
s/\\b/\b/g;
s/\\f/\f/g;
s/\\\^/\377/g;
s/\^\?/\177/g;
s/\^(.)/pack('c',ord($1) & 31)/eg;
s/\\(.)/$1/g;
s/\377/^/g;
$TC{$entry} = $_ if $TC{$entry} eq '';
}
}
$TC{'pc'} = "\0" if $TC{'pc'} eq '';
$TC{'bc'} = "\b" if $TC{'bc'} eq '';
}
@Tputs = (0,200,133.3,90.9,74.3,66.7,50,33.3,16.7,8.3,5.5,4.1,2,1,.5,.2);
sub Tputs {
local($string,$affcnt,$FH) = @_;
local($ms);
if ($string =~ /(^[\d.]+)(\*?)(.*)$/) {
$ms = $1;
$ms *= $affcnt if $2;
$string = $3;
$decr = $Tputs[$ospeed];
if ($decr > .1) {
$ms += $decr / 2;
$string .= $TC{'pc'} x ($ms / $decr);
}
}
print $FH $string if $FH;
$string;
}
sub Tgoto {
local($string) = shift(@_);
local($result) = '';
local($after) = '';
local($code,$tmp) = @_;
local(@tmp);
@tmp = ($tmp,$code);
local($online) = 0;
while ($string =~ /^([^%]*)%(.)(.*)/) {
$result .= $1;
$code = $2;
$string = $3;
if ($code eq 'd') {
$result .= sprintf("%d",shift(@tmp));
}
elsif ($code eq '.') {
$tmp = shift(@tmp);
if ($tmp == 0 || $tmp == 4 || $tmp == 10) {
if ($online) {
++$tmp, $after .= $TC{'up'} if $TC{'up'};
}
else {
++$tmp, $after .= $TC{'bc'};
}
}
$result .= sprintf("%c",$tmp);
$online = !$online;
}
elsif ($code eq '+') {
$result .= sprintf("%c",shift(@tmp)+ord($string));
$string = substr($string,1,99);
$online = !$online;
}
elsif ($code eq 'r') {
($code,$tmp) = @tmp;
@tmp = ($tmp,$code);
$online = !$online;
}
elsif ($code eq '>') {
($code,$tmp,$string) = unpack("CCa99",$string);
if ($tmp[$[] > $code) {
$tmp[$[] += $tmp;
}
}
elsif ($code eq '2') {
$result .= sprintf("%02d",shift(@tmp));
$online = !$online;
}
elsif ($code eq '3') {
$result .= sprintf("%03d",shift(@tmp));
$online = !$online;
}
elsif ($code eq 'i') {
($code,$tmp) = @tmp;
@tmp = ($code+1,$tmp+1);
}
else {
return "OOPS";
}
}
$result . $string . $after;
}
1;
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