From 8ebb1c9ea93eb27500756a578640d890b53264d3 Mon Sep 17 00:00:00 2001 From: Phil Pennock Date: Tue, 3 Jan 2012 02:41:57 -0500 Subject: [PATCH] bool{} is false for empty strings fixes bug 1193 reported by Jasen Betts. --- doc/doc-docbook/spec.xfpt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 951cd5286..12d813781 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -9871,7 +9871,10 @@ zero. This condition turns a string holding a true or false representation into a boolean state. It parses &"true"&, &"false"&, &"yes"& and &"no"& (case-insensitively); also positive integer numbers map to true if non-zero, -false if zero. Leading and trailing whitespace is ignored. +false if zero. +An empty string is treated as false. +Leading and trailing whitespace is ignored; +thus a string consisting only of whitespace is false. All other string values will result in expansion failure. When combined with ACL variables, this expansion condition will let you -- 2.30.2