Undocumented AHF Properties

[shaneataylor]

Raised originally in #81 by @markgif

I have since also found out about two undocumented command line parameters for enabling the use of Antenna House:

ahf.dir
The directory where AH is installed.

ahf.cmd
The path to AHFCmd.exe in that directory. (I'm using Windows 7, not sure about other OSes)

[jelovirt]

The ahf.dir doesn't exist. The other property is axf.cmd and that specified the AHF executable that is used to run AHF from the command line.

[markgif]

I have two questions related to this.

1. How does the OT access Antenna House when you tell it to use it with
   the command line parameter? I assume the OT does not use this AH command
   line executable. What does it use?
2. Is the answer different for 1.8 and 2.x OT versions?

[drmacro]

The OT uses the command line executable. This is in pdf2/build_axf.xml:

<target name="transform.fo2pdf.ah.nooption" unless="has.axf.option">
<exec executable="${axf.cmd}" resultproperty="errCode" logerror="true">
      <arg value="-d"/>
      <arg value="${pdf2.temp.dir}/topic.fo"/>
      <arg value="-o"/>
      <arg value="${outputFile}"/>
      <arg value="-p"/>
      <arg value="${axf.formatter.output-format}"/>
      <arg value="-extlevel"/>
      <arg value="4"/>
      <arg value="-peb"/>
      <arg value="1"/>
    </exec>
 </target>
  <target name="transform.fo2pdf.ah.hasoption" if="has.axf.option">
    <exec executable="${axf.cmd}" resultproperty="errCode" logerror="true">
      <arg value="-d"/>
      <arg value="${pdf2.temp.dir}/topic.fo"/>
      <arg value="-o"/>
      <arg value="${outputFile}"/>
      <arg value="-p"/>
      <arg value="${axf.formatter.output-format}"/>
      <arg value="-extlevel"/>
      <arg value="4"/>
      <arg value="-peb"/>
      <arg value="1"/>
      <arg value="-i"/>
      <arg value="${env.AXF_OPT}"/>
    </exec>
  </target>

[markgif]

Well I'll be darned! That's the way I've done it in a couple plugins and
I figured I was doing a hack. I had the idea there would be some Java
class the OT would access or something. No wonder I could not find it
when I looked for it. Thanks Eliot.