CODEWITHSUNDEEP
javaregex
Gopinath
Gopinath

Reputation: 177

java.util.regex.PatternSyntaxException: Illegal character range near index 71

[^\u0009\u000A\u000D\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF]

The above line showing illegal character range exception. Can anyone please help me.

if i use the above line in java code directly, it is not showing any error.

Pattern xmlInvalidChars = Pattern.compile("[^\\u0009\\u000A\\u000D\\u0020-\\uD7FF\\uE000-\\uFFFD\uD800\uDC00-\uDBFF\uDFFF]");

But if get the string from configuration xml file and use in the java code, it is showing error.

String chars = ConfigLoader.getInstance().getInvalidCharacters();
Pattern xmlInvalidChars = Pattern.compile(chars);

Upvotes: 1

Views: 3856

Answers (2)

Gopinath
Gopinath

Reputation: 177

I used the below line in configuration xml file.

 [^\\u0009\\u000A\\u000D\\u0020-\\uD7FF\\uE000-\\uFFFD\uD800\\uDC00-\\uDBFF\uDFFF]

that is i used the reverse case. i changed the single slash to double slash(\ to \) and double slash to single slash(\ to ). It is working now.

Upvotes: 0

Leonardo Pina
Leonardo Pina

Reputation: 468

I can't comment yet, so I'll post as an answer. inside your string you have loose backslashes \uD800\uDC00-\uDBFF\uDFFF, therefore, it is treating \uas and escape character, however it is not. just add double backslashes as the rest of your regex.

Edit: Before compiling the pattern, try to substitute single slashes with double slashes.

chars = chars.replace("\\","\\\\");

Upvotes: 1

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