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- Term::Cap - Perl termcap interface
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- require Term::Cap;
- $terminal = Tgetent Term::Cap { TERM => undef, OSPEED => $ospeed };
- $terminal->Trequire(qw/ce ku kd/);
- $terminal->Tgoto('cm', $col, $row, $FH);
- $terminal->Tputs('dl', $count, $FH);
- $terminal->Tpad($string, $count, $FH);
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- These are low-level functions to extract and use
- capabilities from a terminal capability (termcap) database.
-
- The TTTTggggeeeetttteeeennnntttt function extracts the entry of the specified
- terminal type _T_E_R_M (defaults to the environment variable
- _T_E_R_M) from the database.
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- It will look in the environment for a _T_E_R_M_C_A_P variable. If
- found, and the value does not begin with a slash, and the
- terminal type name is the same as the environment string
- _T_E_R_M, the _T_E_R_M_C_A_P string is used instead of reading a
- termcap file. If it does begin with a slash, the string is
- used as a path name of the termcap file to search. If
- _T_E_R_M_C_A_P does not begin with a slash and name is different
- from _T_E_R_M, TTTTggggeeeetttteeeennnntttt searches the files $_H_O_M_E/._t_e_r_m_c_a_p,
- /_e_t_c/_t_e_r_m_c_a_p, and /_u_s_r/_s_h_a_r_e/_m_i_s_c/_t_e_r_m_c_a_p, in that order,
- unless the environment variable _T_E_R_M_P_A_T_H exists, in which
- case it specifies a list of file pathnames (separated by
- spaces or colons) to be searched iiiinnnnsssstttteeeeaaaadddd. Whenever multiple
- files are searched and a tc field occurs in the requested
- entry, the entry it names must be found in the same file or
- one of the succeeding files. If there is a :tc=...: in the
- _T_E_R_M_C_A_P environment variable string it will continue the
- search in the files as above.
-
- _O_S_P_E_E_D is the terminal output bit rate (often mistakenly
- called the baud rate). _O_S_P_E_E_D can be specified as either a
- POSIX termios/SYSV termio speeds (where 9600 equals 9600) or
- an old BSD-style speeds (where 13 equals 9600).
-
- TTTTggggeeeetttteeeennnntttt returns a blessed object reference which the user
- can then use to send the control strings to the terminal
- using TTTTppppuuuuttttssss and TTTTggggoooottttoooo. It calls croak on failure.
-
- TTTTggggoooottttoooo decodes a cursor addressing string with the given
- parameters.
-
- The output strings for TTTTppppuuuuttttssss are cached for counts of 1 for
- performance. TTTTggggoooottttoooo and TTTTppppaaaadddd do not cache. $self->{_xx} is
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- Page 1 (printed 10/23/98)
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- the raw termcap data and $self->{xx} is the cached version.
-
- print $terminal->Tpad($self->{_xx}, 1);
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- TTTTggggoooottttoooo, TTTTppppuuuuttttssss, and TTTTppppaaaadddd return the string and will also
- output the string to $FH if specified.
-
- The extracted termcap entry is available in the object as
- $self->{TERMCAP}.
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- EEEEXXXXAAAAMMMMPPPPLLLLEEEESSSS
- # Get terminal output speed
- require POSIX;
- my $termios = new POSIX::Termios;
- $termios->getattr;
- my $ospeed = $termios->getospeed;
-
- # Old-style ioctl code to get ospeed:
- # require 'ioctl.pl';
- # ioctl(TTY,$TIOCGETP,$sgtty);
- # ($ispeed,$ospeed) = unpack('cc',$sgtty);
-
- # allocate and initialize a terminal structure
- $terminal = Tgetent Term::Cap { TERM => undef, OSPEED => $ospeed };
-
- # require certain capabilities to be available
- $terminal->Trequire(qw/ce ku kd/);
-
- # Output Routines, if $FH is undefined these just return the string
-
- # Tgoto does the % expansion stuff with the given args
- $terminal->Tgoto('cm', $col, $row, $FH);
-
- # Tputs doesn't do any % expansion.
- $terminal->Tputs('dl', $count = 1, $FH);
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- Page 2 (printed 10/23/98)
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