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Posted to user@ant.apache.org by Hunter Peress <hu...@gmail.com> on 2006/10/12 23:17:37 UTC
Did i reinvent the wheel with greaterthan?
Im using ant-contrib to implement a greater-than (for ints only)
functionality.
Did I miss something in the documentation? Or is this the best approach (i
realize I could have written a custom ant task)
Did i reinvent some wheel in ant?
<target name="t">
<taskdef resource="net/sf/antcontrib/antlib.xml">
<classpath>
<pathelement location="ant-contrib-0.6.jar"/>
</classpath>
</taskdef>
<macrodef name="greaterthan">
<attribute name="resultprop" default="NOT SET"/>
<attribute name="arg1" default="NOT SET"/>
<attribute name="arg2" default="NOT SET"/>
<sequential>
<math result="gt_tmp" datatype="int">
<op op="max" >
<num value="@{arg1}"/>
<num value="@{arg2}"/>
</op>
</math>
<echo>${gt_tmp}</echo>
<if>
<equals arg1="@{arg1}" arg2="${gt_tmp}" />
<then>
<property name="@{resultprop}" value="1" />
</then>
<else>
<property name="@{resultprop}" value="0" />
</else>
</if>
</sequential>
</macrodef>
<greaterthan arg1="100" arg2="20" resultprop="well" />
<echo>${well}</echo>
</target>
Re: Did i reinvent the wheel with greaterthan?
Posted by Dominique Devienne <dd...@gmail.com>.
On 10/12/06, Scot P. Floess <fl...@mindspring.com> wrote:
> Honestly, I've done something similar... However, my approach was to
> subtract the two numbers and if examine the 1st character to determine
> <, > or =... a "-" means less than, "0" means equal otherwise its
> greater than.
>
> I couldn't find exactly what I wanted either...that's why I "rolled my own"
FTR, this is precisely when one should be leaving the realm of pure
Ant, and write a little <script> using any one of the true scripting
languages one can leverage from within the build file. I find the
<ac:math> task a bit 'ugly' personally ;-) --DD
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Re: Did i reinvent the wheel with greaterthan?
Posted by "Scot P. Floess" <fl...@mindspring.com>.
Honestly, I've done something similar... However, my approach was to
subtract the two numbers and if examine the 1st character to determine
<, > or =... a "-" means less than, "0" means equal otherwise its
greater than.
I couldn't find exactly what I wanted either...that's why I "rolled my own"
Hunter Peress wrote:
> Im using ant-contrib to implement a greater-than (for ints only)
> functionality.
> Did I miss something in the documentation? Or is this the best
> approach (i
> realize I could have written a custom ant task)
>
> Did i reinvent some wheel in ant?
>
> <target name="t">
> <taskdef resource="net/sf/antcontrib/antlib.xml">
> <classpath>
> <pathelement location="ant-contrib-0.6.jar"/>
> </classpath>
> </taskdef>
>
> <macrodef name="greaterthan">
> <attribute name="resultprop" default="NOT SET"/>
> <attribute name="arg1" default="NOT SET"/>
> <attribute name="arg2" default="NOT SET"/>
> <sequential>
> <math result="gt_tmp" datatype="int">
> <op op="max" >
> <num value="@{arg1}"/>
> <num value="@{arg2}"/>
> </op>
> </math>
> <echo>${gt_tmp}</echo>
> <if>
> <equals arg1="@{arg1}" arg2="${gt_tmp}" />
> <then>
> <property name="@{resultprop}" value="1" />
> </then>
> <else>
> <property name="@{resultprop}" value="0" />
> </else>
> </if>
> </sequential>
> </macrodef>
>
> <greaterthan arg1="100" arg2="20" resultprop="well" />
> <echo>${well}</echo>
> </target>
>
--
Scot P. Floess
27 Lake Royale
Louisburg, NC 27549
252-478-8087 (Home)
919-754-4592 (Work)
Chief Architect JPlate http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim
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