<for>
Takes a counter variable name, initial value (from), a boundary condition expressed either as a final value (to) or as an expression (condition), and an optional increment (defaulting to "1"). The familiar continue
and break
constructs are also available as tags.
Examples
- (1) with condition expression
<declare name="I" int="0"/> <declare name="J" int="0"/> <for var="i" from="0" condition="$E{${i} < 5}"> <for var="j" from="0" condition="$E{${j} &lt; 5}"> <declare name="redeclared" string="OK"/> <if condition="$E{${i} + ${j} > 4}"> <break/> </if> <if condition="$E{${j} + ${i} &lt; 3}"> <continue/> </if> <assign name="J" int="${j}"/> </for> <if condition="$E{${I} $amp;gt;= 4 }"> <break/> </if> <assign name="I" int="${i}"/> </for> <declare name="result" string="${I}, ${J}"/>
- (2) with to boundary condition
<declare name="result"/> <declare name="i" int="20"/> <for var="i" to="10" increment="-1"> <declare name="j" int="5"/> <for var="j" to="12"> <declare name="k" int="0"/> <for var="k" to="7"> <assign name="result" string="${i} ${j} ${k}"/> </for> </for> </for>
NOTES
- If the from condition is left undefined, the variable is assumed to have been initialized in the scope of the loop; if the named variable does not already exist, the loop task will fail.
- The to condition is inclusive (i.e., 'up to and including').