try the <isset condition >> -----Original Message----- >> From: Mohit Anchlia [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, October 14, 2008 10:33 PM >> To: Ant Users List >> Subject: If else >> >> I am struggling with a very simple question. How do I test if a >> variable is defined or not? >> >> I tried: >> >> >> <if> >> <matches string="${jboss.wily.jvmargs}" pattern="^[ \t]+" /> >> >> and >> >> >> <if> >> <matches string="${jboss.wily.jvmargs}" pattern="" /> >> >> and >> >> >> <if> >> <length string="${jboss.wily.jvmargs}" trim="true" >> when="greater" length="0" /> >> >> >> >> Nothing seem to work. jboss.wily.jvmargs may or may not be there in >> property file >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >>
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