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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (TEXT-74) StrSubstitutor: Ability to turn off substitution in values
Date Sat, 07 Oct 2017 21:38:03 GMT


ASF GitHub Bot commented on TEXT-74:

GitHub user sermojohn opened a pull request:

    TEXT-74 Introduced new StrSubstitutor attribute to disable recursive substitution


You can merge this pull request into a Git repository by running:

    $ git pull TEXT-74

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #68
commit a25aa337f08e8cd0baad1d70565552c7dad91d5b
Author: Ioannis Sermetziadis <>
Date:   2017-10-07T21:34:06Z

    TEXT-74 Added attribute for disabling the recursive substitution of variable values


> StrSubstitutor: Ability to turn off substitution in values
> ----------------------------------------------------------
>                 Key: TEXT-74
>                 URL:
>             Project: Commons Text
>          Issue Type: Improvement
>            Reporter: Arend v. Reinersdorff
>            Priority: Minor
>              Labels: features
>             Fix For: 1.x
> StrSubstitutor replaces variables in values. And currently there's no way to turn this
> Why turn it off: I want to replace some variables in a simple template. Some of the replacement
values are arbitrary user input.
> At the moment I escape all dollar signs in the replacement values with "$$". This is
annoying. Especially as I use one template with variables as a value for another variable.
Here I have to escape twice.
> Here's some example code. At the moment it prints:
> {code}
> Hello Hamburg from Hamburg
> {code}
> The commented line is my suggestion for this feature. If it works, it should print:
> {code}
> Hello ${city} from Hamburg
> {code}
> {code}
> // untrusted user input
> String userInputName = "${city}";
> String userInputCity = "Hamburg";
> Map<String, String> valueMap = new HashMap<>();
> valueMap.put("name", userInputName);
> valueMap.put("city", userInputCity);
> String source = "Hello ${name} from ${city}";
> StrSubstitutor strSubstitutor = new StrSubstitutor(valueMap);
> // strSubstitutor.setEnableSubstitutionInValues(false);
> System.out.println(strSubstitutor.replace(source));
> {code}

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