CODEWITHSUNDEEP
javaregexfreemarker
drenda
drenda

Reputation: 6244

Java regexp to remove Freemarker FTL tags

I'm trying to create a regexp to ignore Freemarker FTL tags in a String. I've a template with text and FTL tags for example "Hi, [#if gender="Male"]Mr[#elseif]Mrs[/#if] ${name} I've a special offer for you."

I want replace only FTL tags, so only tags that have [#something] pattern: I'm usings square bracket syntax.

Ideally I should call "myString".replaceAll("regex","");

but I'm not able to find the right regexp to use.

The final String result I want obtain after the replacement is "Hi, Mr Mrs ${name} I've a special offer for you."

Upvotes: 0

Views: 981

Answers (2)

dambros
dambros

Reputation: 4392

The following pattern should do what you expect:

\[/?#(.+?)\]

Test case:

public class Test {

    private static final String PATTERN = "\\[/?#(.+?)\\]";
    private static final String TEXT = "Hi, [#if gender=\"Male\"]Mr[#elseif]Mrs[/#if] ${name} I've a special offer for you.";

    public static void main(String[] args) {
        String out = TEXT.replaceAll(PATTERN, "");
        System.out.println(out);
    }

}

Output: Hi, MrMrs ${name} I've a special offer for you.

Upvotes: 2

Ulises
Ulises

Reputation: 9635

This should do it:

public static void main(String[] args) {
    String template = "<html>[BR]\n"
                      + "<head>[BR]\n"
                      + "  <title>Welcome!</title>[BR]\n"
                      + "</head>[BR]\n"
                      + "<body>[BR]\n"
                      + "  [#-- Greet the user with his/her name --][BR]\n"
                      + "  <h1>Welcome ${user}!</h1>[BR]\n"
                      + "  <p>We have these animals:[BR]\n"
                      + "  <ul>[BR]\n"
                      + "  [#list animals as animal][BR]\n"
                      + "    <li>${animal.name} for ${animal.price} Euros[BR]\n"
                      + "  [/#list][BR]\n"
                      + "  </ul>[BR]\n"
                      + "</body>[BR]\n"
                      + "</html>";

    System.out.println("************ORIGINAL TEMPLATE**************");
    System.out.println(template);
    System.out.println("************REPLACED TEMPLATE**************");
    System.out.println(template.replaceAll("\\[/?#(.*?)\\]", "\u001B[33mREPLACEMENT\u001B[0m"));
}

Upvotes: 1

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