Replace bibtex or latex {\dg} string command in java

Question

I want to write a parser for a bibtex file. In my bibtex-file there is a string booktitle = {Wohnen - Pflege - Teilhabe {\dq}Besser leben durch Technik{\dq}} . Anyway, I am using JUnit-Tests and a method which should detect and replace {\dg} to ' or ". Unfortunately I am not able to write the corresponding java code, for example my following code did not detect the substring?

inproceedingsCitation1 += " booktitle = {Wohnen - Pflege - Teilhabe {\\dq}Besser leben durch Technik{\\dq}},\n";

Corresponding part of my replace-Method:

String afterDg = "";
CharSequence targetDg = "{\\dg}";
CharSequence replacementDg = "\"";
afterDg = afterAe.replace(targetDg, replacementDg); 

Answer 1

This regular expression should solve your problem:

String afterDg = afterAe.replaceAll("\\{\\\\dq\\}", "\"");

For more details according to regular expressions, have a look at Vogellas Java Regex Tutorial.