How to use regexp replace task with ant 1.5

[Bin Chen <bi...@bea.com>]

Hi, I am trying to use the replaceregexp task of ant 1.5 to match and
replace certain patterns, here is the sample:
<replaceregexp
    file="${Dest}/sample.cmd">
           <regexp pattern=":_sample_command_marker"/>
               <substitution expression="@rem my substitution \n set
CMD_HOME=@MY_HOME\mysample"/>
</replaceregexp>
Here "\n" is supposed to be a newline, and "\" in CMD_HOME is supposed to be
a direcory
However, when the substitution occured, all back slashes were taken out,
even when I tried using "\\n" and "\\", they were still taken out. Any idea
what happend there?
BTW, I am using jdk1.4.1_01 and jakarta ORO and jakarta regexp as
recommended by the ant document.

Your help is greatly appreciated.

Bin


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