And that same fool forgot to add the not-really-needed "fuzzy" versions

[perl5.git] / lib / termcap.pl

diff --git a/lib/termcap.pl b/lib/termcap.pl
index ab693f2..f295a2d 100644 (file)
--- a/lib/termcap.pl
+++ b/lib/termcap.pl
@@ -1,27 +1,37 @@
-;# $Header: termcap.pl,v 3.0 89/10/18 15:19:58 lwall Locked $
+;# $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:
-;#     do 'ioctl.pl';
+;#     require 'ioctl.pl';
 ;#     ioctl(TTY,$TIOCGETP,$foo);
 ;#     ($ispeed,$ospeed) = unpack('cc',$foo);
-;#     do 'termcap.pl';
-;#     do Tgetent('vt100');    # sets $TC{'cm'}, etc.
-;#     do Tgoto($TC{'cm'},$row,$col);
-;#     do Tputs($TC{'dl'},$affcnt,'FILEHANDLE');
+;#     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)) {
+    # 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 (index($TERMCAP,"|$TERM|") < $[) {
+       if ($TERMCAP !~ /(^|\|)$TERM[:\|]/) {
            $TERMCAP = '/etc/termcap';
        }
     }
@@ -33,7 +43,7 @@ sub Tgetent {
            while (<TERMCAP>) {
                next if /^#/;
                next if /^\t/;
-               if (/\\|$TERM[:\\|]/) {
+               if (/(^|\\|)${TERM}[:\\|]/) {
                    chop;
                    while (chop eq '\\\\') {
                        \$_ .= <TERMCAP>;
@@ -47,7 +57,7 @@ sub Tgetent {
            \$entry .= \$_;
            ";
            eval $loop;
-       } while s/:tc=([^:]+):/:/, $TERM = $1;
+       } while s/:tc=([^:]+):/:/ && ($TERM = $1);
        $TERMCAP = $entry;
     }
 
@@ -62,6 +72,9 @@ sub Tgetent {
            $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;
@@ -70,7 +83,7 @@ sub Tgetent {
            s/\\f/\f/g;
            s/\\\^/\377/g;
            s/\^\?/\177/g;
-           s/\^(.)/pack('c',$1 & 031)/eg;
+           s/\^(.)/pack('c',ord($1) & 31)/eg;
            s/\\(.)/$1/g;
            s/\377/^/g;
            $TC{$entry} = $_ if $TC{$entry} eq '';
@@ -104,17 +117,18 @@ sub Tgoto {
     local($result) = '';
     local($after) = '';
     local($code,$tmp) = @_;
-    @_ = ($tmp,$code);
+    local(@tmp);
+    @tmp = ($tmp,$code);
     local($online) = 0;
     while ($string =~ /^([^%]*)%(.)(.*)/) {
        $result .= $1;
        $code = $2;
        $string = $3;
        if ($code eq 'd') {
-           $result .= sprintf("%d",shift(@_));
+           $result .= sprintf("%d",shift(@tmp));
        }
        elsif ($code eq '.') {
-           $tmp = shift(@_);
+           $tmp = shift(@tmp);
            if ($tmp == 0 || $tmp == 4 || $tmp == 10) {
                if ($online) {
                    ++$tmp, $after .= $TC{'up'} if $TC{'up'};
@@ -127,32 +141,32 @@ sub Tgoto {
            $online = !$online;
        }
        elsif ($code eq '+') {
-           $result .= sprintf("%c",shift(@_)+ord($string));
+           $result .= sprintf("%c",shift(@tmp)+ord($string));
            $string = substr($string,1,99);
            $online = !$online;
        }
        elsif ($code eq 'r') {
-           ($code,$tmp) = @_;
-           @_ = ($tmp,$code);
+           ($code,$tmp) = @tmp;
+           @tmp = ($tmp,$code);
            $online = !$online;
        }
        elsif ($code eq '>') {
            ($code,$tmp,$string) = unpack("CCa99",$string);
-           if ($_[$[] > $code) {
-               $_[$[] += $tmp;
+           if ($tmp[$[] > $code) {
+               $tmp[$[] += $tmp;
            }
        }
        elsif ($code eq '2') {
-           $result .= sprintf("%02d",shift(@_));
+           $result .= sprintf("%02d",shift(@tmp));
            $online = !$online;
        }
        elsif ($code eq '3') {
-           $result .= sprintf("%03d",shift(@_));
+           $result .= sprintf("%03d",shift(@tmp));
            $online = !$online;
        }
        elsif ($code eq 'i') {
-           ($code,$tmp) = @_;
-           @_ = ($code+1,$tmp+1);
+           ($code,$tmp) = @tmp;
+           @tmp = ($code+1,$tmp+1);
        }
        else {
            return "OOPS";