CODEWITHSUNDEEP
javaandroidregex
Ollie Strevel
Ollie Strevel

Reputation: 871

Regex \b word boundary not works

In Android I have the next regexp \b(id)\b,

In this query (i.e.) I want replace exactly the word 'id' : 

SELECT schedules.id as 'idreal' FROM schedules WHERE schedules.id = 12;

Final query:

SELECT schedules._id as 'idreal' FROM schedules WHERE schedules._id = 12;

But it doesn't work, the \b is for word boundary, but it doesn't work. What i'm doing groing?

This is my code:

Matcher matcher = Pattern.compile("\b(id)\b").matcher(field);
String query = matcher.replaceAll("_id");

Log.v(TAG, "Clean Query: "  + query);

I tested in

Thanks a lot.

Upvotes: 4

Views: 2766

Answers (1)

falsetru
falsetru

Reputation: 369134

You should escape \ to represent \ literally. Otherwise \b means a backspace characters.

Matcher matcher = Pattern.compile("\\b(id)\\b").matcher(field);

Upvotes: 7

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