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Full Discussion: Line-drawing character!
Top Forums Programming Line-drawing character! Post 16917 by Perderabo on Friday 8th of March 2002 08:25:37 AM
Old 03-08-2002
Well this was a new one on me. I didn't know that curses had this capability. But I've been looking over the documentation and I'll make a couple of guesses.

First, are you sure that your terminal can draw lines this way? Almost no one actually uses a true vt-100. Instead you may have a terminal that is emulating a vt-100 or you may be using a program like xterm that emulates a vt-100. xterm can only do what the font can do. My xterm cannot draw lines. But I'm not going to try any different fonts to see what I can do. So the first thing I would try is to write a non-curses program that sends the correct character string to the terminal and verify that it is possible.

If the terminal can really draw lines, the next thing to worry about is the terminfo entry. You may need to write a new one. I have seen several cases where complex curses stuff did not work because the OS came with a poor terminfo entry. I think that the manufacters simply ensure that the terminfo entry can run vi. They can't be testing it much beyond that from what I've seen.
 

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LEARN ABOUT MOJAVE

toe

toe(1M) 																   toe(1M)

NAME

       toe - table of (terminfo) entries

SYNOPSIS

       toe [-v[n]] [-ahuUV] file...

DESCRIPTION

       With  no  options,  toe lists all available terminal types by primary name with descriptions.  File arguments specify the directories to be
       scanned; if no such arguments are given, your default terminfo directory is scanned.  If you also specify the -h option, a directory header
       will be issued as each directory is entered.

       There are other options intended for use by terminfo file maintainers:

       -a     report on all of the terminal databases which ncurses would search, rather than only the first one that it finds.

       -u file
	      says to write a report to the standard output, listing dependencies in the given terminfo/termcap source file.  The report condenses
	      the `use' relation: each line consists of the primary name of a terminal that has use capabilities, followed by a colon, followed by
	      the whitespace-separated primary names of all terminals which occur in those use capabilities, followed by a newline

       -U file
	      says  to	write a report to the standard output, listing reverse dependencies in the given terminfo/termcap source file.	The report
	      reverses the `use' relation: each line consists of the primary name of a terminal that occurs in use  capabilities,  followed  by  a
	      colon, followed by the whitespace-separated primary names of all terminals which depend on it, followed by a newline.

       -vn    specifies  that  (verbose) output be written to standard error, showing toe's progress.  The optional parameter n is a number from 1
	      to 10, interpreted as for tic(1M).

       -V     reports the version of ncurses which was used in this program, and exits.

FILES

       /usr/share/terminfo/?/*
	    Compiled terminal description database.

SEE ALSO

       tic(1M), infocmp(1M), captoinfo(1M), infotocap(1M), curses(3X), terminfo(5).

       This describes ncurses version 5.7 (patch 20081102).

																	   toe(1M)
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