How to escape special characters with Groovy

[Jesus Enrique Diaz Burgos]

Hi everyone, I'm trying to use a regex to scape special characters, right now used it on Java and works perfect, it does exactly what I want `Scape any special character` however I tried this in Groovy but the same line doesn't work, as far I investaged it's because `$` is reserved in Groovy, so far I tried this;

Java: (Does the job)

String specialCharRegex = "[\\W|_]";
 ...
 term = term.replaceAll(specialCharRegex, "\\\\$0");
 ...

Groovy:

error

String specialCharRegex = "[\\W|_]";
 ...
 term = term.replaceAll(specialCharRegex, "\\\\$0");
 ...

error

String specialCharRegex = "[\\W|_]";
 ...
 term = term.replaceAll(specialCharRegex, "\\\\\$0");
 ...

error

String specialCharRegex = "[\\W|_]";
 ...
 term = term.replaceAll(specialCharRegex, '\\\\$0');
 ...

error

String specialCharRegex = "[\\W|_]";
 ...
 term = term.replaceAll(specialCharRegex, '\\\\$1');
 ...

I use `https://groovyconsole.appspot.com/` to test it.

Output in Groovy should be:

Input: test 1& test
 Output: test 1\& test
 
 Input: test 1& test 2$
 Output: test 1\& test 2\$
 
 Input: test 1& test 2$ test 3%
 Output: test 1\& test 2\$ test 3\%
 
 Input: !"@#$%&/()=?
 Output: \!\"\@\#\$\%\&\/\(\)\=\?

[Andrew]

Hi @Jesus Enrique Diaz Burgos ,

Works for me:

String test = "1& test 2\$ test 3% !\"@#\$%&/()=?"

result = test.replaceAll(/(!|"|@|#|\$|%|&|\\/|\(|\)|=|\?)/, /\\$0/)

println(result)

output:

> String test = "1& test 2\$ test 3% !\"@#\$%&/()=?"
> 
> result = test.replaceAll(/(!|"|@|#|\$|%|&|\\/|\(|\)|=|\?)/, /\\$0/)
> 
> println(result)
1\& test 2\$ test 3\% \!\"\@\#\$\%\&\/\(\)\=\?

B.R.