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https://issues.apache.org/jira/browse/VELTOOLS-104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12592085#action_12592085
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Nathan Bubna commented on VELTOOLS-104:
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Hmm. I suppose you're right.
> MessageFormat.format() not invoked in ResourceTool.render() if there are no
> arguments
> -------------------------------------------------------------------------------------
>
> Key: VELTOOLS-104
> URL: https://issues.apache.org/jira/browse/VELTOOLS-104
> Project: Velocity Tools
> Issue Type: Bug
> Components: GenericTools
> Affects Versions: 1.4, 2.0, 2.x
> Reporter: Rod
>
> render() currently looks like this:
> public String render(Object resource, Object[] args)
> {
> String value = String.valueOf(resource);
> if (args == null)
> {
> return value;
> }
> return MessageFormat.format(value, args);
> }
> Unfortunately, if you're using MessageFormat-ready messages then you should
> be format()ting even strings with no arguments, even if this seems like an
> inefficiency.
> We use many strings that are used on their own, or as part of other messages,
> sometimes they have arguments and sometimes they don't. This creates a sticky
> situation if you have to use MessageFormat escaping for some messages and not
> others. For example:
> message1=ResourceTool's problem
> message2=$(message1) is {0}
> where "$(message1)" is a substitution for message1 (which our ResourceBundle
> does for us). ResourceTool renders the first message fine but the second
> message with an argument doesn't render properly due to the unescaped '
> passed to MessageFormat. Even without the special message substitution
> render() causes problems because the escaping rules are different depending
> on the message context.
> The messages should actually be:
> message1=ResourceTool''s problem
> message2=$(message1) is {0}
> to be consistent with MessageFormat's rules across all messages.
> Unfortunately ResourceTool can't handle this because it doesn't pass a
> no-argument resource to MessageFormat.
> I'm using a subclass of ResourceTool that doesn't have the shortcut:
> @Override
> public String render(Object resource, Object[] args) {
> return MessageFormat.format(String.valueOf(resource), args);
> }
> So all my messages have the same escaping rules.
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