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!ifnset

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 "british" isn't set.
 
!ifnset [british]
 
Exists since: Release 5 Patchlevel 10
 
See also: !ifset, Query commands
 

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Last updated on November 5, 2006

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