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From "Nathan Bubna (JIRA)" <...@velocity.apache.org>
Subject [jira] Resolved: (VELTOOLS-109) A PrinftTool comes in handy. I've one I wish to donate
Date Fri, 21 Nov 2008 06:08:44 GMT

     [ https://issues.apache.org/jira/browse/VELTOOLS-109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nathan Bubna resolved VELTOOLS-109.
-----------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 1.4)

Ok, DisplayTool (in 2.0) now has a printf(String,Object...) method and extends LocaleConfig.
 Thanks for the idea.  If we support MessageFormat style, we might as well support printf.

> A PrinftTool comes in handy.  I've one I wish to donate
> -------------------------------------------------------
>
>                 Key: VELTOOLS-109
>                 URL: https://issues.apache.org/jira/browse/VELTOOLS-109
>             Project: Velocity Tools
>          Issue Type: Improvement
>          Components: GenericTools
>    Affects Versions: 1.4, 2.0
>         Environment: JDK 1.5, 6
>            Reporter: Ezra Epstein
>            Priority: Minor
>             Fix For: 2.0
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> import java.io.ByteArrayOutputStream;
> import java.io.PrintStream;
> import java.io.PrintWriter;
> import java.io.StringWriter;
> import java.util.List;
> public class PrintfTool extends org.apache.velocity.tools.generic.LocaleConfig {
> 		StringWriter output;
> 		PrintWriter printer;
> 		public PrintfTool() {
> 			output = new StringWriter();
> 			printer = new PrintWriter(output);
> 		}
> 		// Velocity doesn't support invoking with varargs
> 		private String printf(String format, Object... args) {
> 			printer.printf(format, args);
> 			printer.flush();
> 			output.flush();
> 			String result = output.toString();
> 			output.getBuffer().setLength(0);
> 			return result;
> 		}
> 		// Velocity does support invoking with a List of values.
> 		public String printf(String format, List args) {
> 			return printf(format, args.toArray());
> 		}
> 		// Since value convenience method
> 		public String printf(String format, Object arg) {
> 			return printf(format, new Object[] { arg });
> 		}
> }

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