Georg-Johann Lay schrieb:
Hi,
can anyone assist me in solving this following quite trivial problem?
Given a path A and the current directory B=. derermine B relative to A.
This is needed for prefixes in zipfileset.
In the special case that I am after B is a subdirectory (of some level)
of A. So gettig the relative path B-A means that A and B look like this:
A=<sting1>
B=<sting1><string2>
I wasted hours to figure out how this could be achieved... The regex
stuff is too complicated because dirs may contain special chars like
blanke, ., \, /, -, $ and even *.
How can I easily remove the prexix A from B? I bet it is a one-liner.
Hallo again. Eventuelly the time was not wasted. I am using the
following code. It is not exactly removing a prefix; it's a little bit more:
<macrodef name="set">
<attribute name="property" />
<attribute name="string" />
<sequential>
<property name="@{property}" value="@{string}"/>
</sequential>
</macrodef>
<tempfile property="prefix.file" />
<macrodef name="unprefix">
<attribute name="property"/>
<attribute name="prefix"/>
<attribute name="string"/>
<sequential>
<echo message=".string.suff...@{property}=!!@{string}"
file="${prefix.file}" />
<replace file="${prefix.file}" token="=...@{prefix}" value="=!!" />
<replace file="${prefix.file}" token="\" value="/" />
<replaceregexp file="${prefix.file}" match="//*" replace="/" />
<replaceregexp file="${prefix.file}" match="=!!/*" replace="=" />
<property file="${prefix.file}" />
<property name="@{property}"
value="${.string.suff...@{property}}"/>
<delete file="${prefix.file}" deleteonexit="true" />
</sequential>
</macrodef>
Maybe someone finds is useful.
Grüß, Georg-Johann
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