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https://issues.apache.org/jira/browse/LANG-893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718611#comment-13718611
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Matt Benson commented on LANG-893:
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I would suggest:
(a) that the default value separator be customizable, as are the token
delimiters, and
(b) that the *default* default value separator be {{:-}} as in bash and other
*nix shells, as those are arguably where the default ${} delimiter set
originated.
> Default value for StrSubstitutor
> --------------------------------
>
> Key: LANG-893
> URL: https://issues.apache.org/jira/browse/LANG-893
> Project: Commons Lang
> Issue Type: Improvement
> Components: lang.text.*
> Affects Versions: 2.4
> Reporter: Lauri Siltanen
> Priority: Minor
>
> public static void main(String[] args) {
> String s = "The number of ${item} items currently available:
> ${number}";
> String result = StrSubstitutor.replace(s,
> Collections.singletonMap("item", "monitor"));
> System.out.println(result);
> }
> This results in: "The number of monitor items currently available: ${number}".
> I'd need a default value for a placeholder that cannot be resolved.
> String result = StrSubstitutor.replace(s, Collections.singletonMap("item",
> "monitor"), "N/A");
> -> "The number of monitor items currently available: N/A".
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