--- Erik Hatcher <[EMAIL PROTECTED]> wrote:
> Um.... nevermind..... I missed the part that there
> is "just a blank
> line". A custom FilterReader would work - have it
> only affect the 4th
> line.
>
> Erik
All you have to match is the line break count, so
assuming you know what those are (use fixcrlf worst
case) tokenfilter + filetokenizer + replaceregex
works. My self-contained example (with Jakarta ORO as
my regexp engine):
<project>
<property name="br" value="${line.separator}" />
<property name="insert" value="hello world" />
<echo file="foo.txt" append="false">01
bla${br}</echo>
<echo file="foo.txt" append="true">02
bla${br}</echo>
<echo file="foo.txt" append="true">03
bla${br}</echo>
<echo file="foo.txt" append="true">04 ${br}</echo>
<echo file="foo.txt" append="true">05 ${br}</echo>
<echo file="foo.txt" append="true">06 ${br}</echo>
<echo file="foo.txt" append="true">07
bla${br}</echo>
<echo file="foo.txt" append="true">08
bla${br}</echo>
<echo file="foo.txt" append="true">09
bla${br}</echo>
<copy file="foo.txt" tofile="bar.txt">
<filterchain>
<tokenfilter>
<filetokenizer />
<replaceregex
pattern="^(.*${br}.*${br}.*${br}.*)(${br}.*)"
replace="\1${insert}\2" />
</tokenfilter>
</filterchain>
</copy>
</project>
-Matt
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