Regex to search and replace text in a string

Question

String text = the property value [[some.text]] and [[value2.value]]should be replaced.

The values [[some.some]] should be replaced with some dynamic code.

String entryValue = entry.getValue();           

            Pattern pattern = Pattern.compile("([[\\w]])");
            Matcher matcher = pattern.matcher(entryValue);

            while(matcher.find()){

             String textToReplace = matcher.group(1);
             textToReplace = textToReplace.replace(".","");

             String resolvedValue =   "text to be replaced";
             matcher.replaceAll(resolvedValue);                 
            }

anubhava · Accepted Answer · 2014-02-07 21:15:34Z

1

Escape [ and ] as these are special regex symbols:

Pattern pattern = Pattern.compile( "(\\[\\[[\\w.]*\\]\\])" );

edited Feb 7, 2014 at 21:15

answered Feb 7, 2014 at 20:52

anubhava

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10 Comments

Explosion Pills Over a year ago

Wouldn't you need two backslashes?

Pshemo Over a year ago

You don't need to escape ] id it doesn't have opened and unescaped [ before it.

anubhava Over a year ago

@Pshemo: True but for readability purpose I always escape them.

Pshemo Over a year ago

Agree that it makes regex more readable. I just mention it as interesting additional info so others wouldn't be surprised that \[x] compiles fine.

user679526 Over a year ago

That works. Thanks for your help. Can you just give a description of that regex?

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