Ant 1.4.1, i'm calling ProjectHelper.replaceProperties(...) on a string like
the following:
$foo = ${build.top.dir};
print "$foo\n";
The property expansion works fine, but it also strips the $ from '$foo', so i
end up with:
foo = "/some/path;
print "foo\n";
i'm attaching a small class which tests the xml code below, showing the
behaviour:
<taskdef name="propexpand"
classname="net.sf.antcontrib.logic.PropExpansionTest"/>
<property name="whattodrink" value="milk"/>
<propexpand replaceproperties="true">
$foo = "${whattodrink}";
print "foo=$foo\n";
</propexpand>
<propexpand replaceproperties="false">
$foo = "${whattodrink}";
print "foo=$foo\n";
</propexpand>
It produces this output:
property expansion = [true]
text=
foo = "milk";
print "foo=foo\n";
property expansion = [false]
text=
$foo = "${whattodrink}";
print "foo=$foo\n";
Note all the missing dollar signs in the first one.
----- stephan
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/*
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package net.sf.antcontrib.logic;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectHelper;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.taskdefs.Execute;
import org.apache.tools.ant.taskdefs.ExecTask;
import java.lang.StringBuffer;
import java.io.*;
/**
Quick test of a prop expansion bug?
*/
public class PropExpansionTest extends org.apache.tools.ant.taskdefs.ExecTask {
private StringBuffer script = new StringBuffer();
private boolean replaceproperties = false;
public PropExpansionTest()
{
super();
}
public void execute() throws BuildException {
String scr = this.getReplaceproperties() ? ProjectHelper.replaceProperties( this.getProject(), this.getText(), this.getProject().getProperties() ) : this.getText();
log( "property expansion = ["+this.getReplaceproperties()+"]" );
log( "text="+scr );
}
/**
Adds s to the lines of script code.
*/
public void addText( String s ) {
script.append( s );
}
/**
Sets script code to s.
*/
public void setText( String s ) {
script = new StringBuffer( s );
}
/**
Returns the script code.
*/
public String getText() {
return this.script.toString();
}
/**
If set to true then all ${property}-format strings in getText() will be replaced with
their Ant values. Use with care, since ${foo} is a valid construct in bash code.
*/
public void setReplaceproperties( boolean b ) {
this.replaceproperties = b;
}
public boolean getReplaceproperties() {
return this.replaceproperties;
}
} // end class PropExpansionTest org.apache.tools.ant.Task
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