Pattern compile throwing java.util.regex.PatternSyntaxException

Question

i have following

Pattern loPattern = Pattern.compile(someText.toLowerCase(), Pattern.CASE_INSENSITIVE | Pattern.DOTALL);

this line throws exception if someText has pattern like e[l

this someText can contain characters [a-z][A-Z][0-9]!@#$%^&;*()_+=|{}[];:'"<>;,.?/`~§ -

whats the possible solution for it?

It really does not make sense to lowercase the pattern and match case insensitive. — Ingo
– Ingo, Commented Oct 21, 2013 at 13:59

Reimeus · Accepted Answer · 2013-10-21 14:44:41Z

6

Add the Pattern.LITERAL flag so the meta-characters are not translated in the expression

Pattern loPattern = 
    Pattern.compile(someText, 
       Pattern.CASE_INSENSITIVE | Pattern.DOTALL | Pattern.LITERAL);

answered Oct 21, 2013 at 12:47

Reimeus

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