Query symbol.
| Type & position: | command, preamble & main part |
| Syntax: | !ifnset [<text>] |
| Description: | With this command you can test if a symbol was not set
with the command line option -D or with
!set. If <text> wasn't set
UDO will convert all lines bewteen !ifnset and
!else or !endif. If
<text> was set UDO will convert all lines
between !else and !endif if
!else was used. The example shows how to test if the
symbol britishisn't set. |
| Example: | !ifnset [british] |
| Exists since: | Release 5 Patchlevel 10 |
| See also: | !ifset, Query commands |