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graphics_chars [2009/01/23 15:27] (current)
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 +======Portable use of graphics characters======
 +
 +Graphics characters are stored in an "​alternate character set", which you
 +can turn on and off with the ALTCHARSET character (control-E). ​ When you are
 +in alternate character set mode, some of the characters are substituted with
 +other ("​alternate"​) characters.
 +
 +The $getcap(TERM acs_chars 0 0) function call will return to you all of the
 +characters that are substituted in the alternate character set.  This value
 +is a string that contains pairs of characters.  ​
 +
 +The first character is a well-defined "​vt100"​ alternate character name.
 +
 +The second character is what character your emulator uses to support that
 +well-defined "​vt100"​ alternate character.
 +
 +Any characters that are not supported by your emulator are not shown in 
 +this list; you can't assume all characters will be supported -- some 
 +emulators may not support //any//.
 +
 +======Example======
 +  @ foo = getcap(TERM acs_chars 0 0);
 +  fec ($foo) vt me {
 + switch ($vt) {
 + (w) { @tee_down = me }
 + (u) { @tee_left = me }
 + (t) { @tee_right = me }
 + (v) { @tee_up = me }
 + (l) { @ul_corner = me }
 + (k) { @ur_corner = me }
 + (m) { @ll_corner = me }
 + (j) { @lr_corner = me }
 + (x) { @vline = me }
 + (q) { @hline = me }
 + }
 +  }
 +
 +  alias box (message) {
 + echo $ul_corner$repeat(65 $hline)$ur_corner
 + echo $vline$[65]center(65 $message)$vline
 + echo $ll_corner$repeat(65 $hline)$lr_corner
 +  }
 +
 +  box hi there!
 +  box w00t!
 +
 +
  
graphics_chars.txt ยท Last modified: 2009/01/23 15:27 (external edit)