DO NOT REPLY [Bug 51167] New: Support string replacement as part of property expansion

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=51167

             Bug #: 51167
           Summary: Support string replacement as part of property
                    expansion
           Product: Ant
           Version: nightly
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Core
        AssignedTo: notifications@ant.apache.org
        ReportedBy: kdgregory@yahoo.com
    Classification: Unclassified


Created attachment 26968
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=26968
Patch for 'replaceAll:' property prefix (against trunk as-of right now)

It is occasionally useful to take one property value and transform it with a
simple string replace. For example, if you have a comma-delimited list of
locales, you might want to generate a fileset from it (this example shows a
BASH-style substitution; see below):

    <property name="locales" value="en_US,en_GB,en_CA,fr_FR,fr_CA"/>
    <property name="locale.regex" value="${locales/,/|}"/>

    <fileset dir="${resource.dir}">
        <filename regex="${locale.regex}.txt"/>
    </fileset>

It's currently possible to do this using the ant-contrib PropertyRegex task.
However, using that task requires getting the ant-contrib JARfile and adding it
to your classpath.

While I think the BASH-style expansions are cleaner, in keeping with current
practice I suggest adding a "replaceAll:" prefix:

    <property name="locale.regex" value="${replaceAll:locales/,/|}"/>

I've attached a patch that implements this, with tests and changes to docs.

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DO NOT REPLY [Bug 51167] Support string replacement as part of property expansion

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=51167

--- Comment #1 from Matt Benson <mb...@apache.org> 2011-05-08 03:59:41 UTC ---
Seen http://ant.apache.org/antlibs/props/index.html ?

The stringops PropertyEvaluator implements bash style string handling.

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