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Date: Thu, 13 Jul 2017 19:39:01 +0000 (UTC)
From: "Arend v. Reinersdorff (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12628283.1358543031000.242445.1499974741853@Atlassian.JIRA>
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Subject: [jira] [Updated] (TEXT-74) StrSubstitutor: Ability to turn off
 substitution in values
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archived-at: Thu, 13 Jul 2017 19:39:14 -0000


     [ https://issues.apache.org/jira/browse/TEXT-74?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arend v. Reinersdorff updated TEXT-74:
--------------------------------------
    Description: 
In StrSubstitutor variable replacement works in a recursive way. And currently there's no way to turn this off.

Why turn it off: I want to replace some variables in a simple template. Some of the replacemnt 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 world
{code}
The commented line is my suggestion for this feature. If it works, it should print:
{code}
Hello ${key2}
{code}

{code}
Map<String, String> valueMap = new HashMap<>();
valueMap.put("key", "${key2}");
valueMap.put("key2", "world");

String source = "Hello ${key}";

StrSubstitutor strSubstitutor = new StrSubstitutor(valueMap);
// strSubstitutor.setEnableSubstitutionInValues(false);
System.out.println(strSubstitutor.replace(source));
{code}

  was:
In StrSubstitutor variable replacement works in a recursive way. And currently there's no way to turn this off.

Why turn it off: I want to replace some variables in a simple template. Some of the replacemnt 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 world
{code}
The commented line is my suggestion for this feature. If it works, it should print:
{code}
Hello ${key2}
{code}

{code}
Map<String, String> valueMap = new HashMap<>();
valueMap.put("key", "$${key2}");
valueMap.put("key2", "world");

String source = "Hello ${key}";

StrSubstitutor strSubstitutor = new StrSubstitutor(valueMap);
// strSubstitutor.setEnableSubstitutionInValues(false);
System.out.println(strSubstitutor.replace(source));
{code}


> StrSubstitutor: Ability to turn off substitution in values
> ----------------------------------------------------------
>
>                 Key: TEXT-74
>                 URL: https://issues.apache.org/jira/browse/TEXT-74
>             Project: Commons Text
>          Issue Type: Improvement
>            Reporter: Arend v. Reinersdorff
>            Priority: Minor
>              Labels: features
>             Fix For: 1.x
>
>
> In StrSubstitutor variable replacement works in a recursive way. And currently there's no way to turn this off.
> Why turn it off: I want to replace some variables in a simple template. Some of the replacemnt 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 world
> {code}
> The commented line is my suggestion for this feature. If it works, it should print:
> {code}
> Hello ${key2}
> {code}
> {code}
> Map<String, String> valueMap = new HashMap<>();
> valueMap.put("key", "${key2}");
> valueMap.put("key2", "world");
> String source = "Hello ${key}";
> StrSubstitutor strSubstitutor = new StrSubstitutor(valueMap);
> // strSubstitutor.setEnableSubstitutionInValues(false);
> System.out.println(strSubstitutor.replace(source));
> {code}


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