Escaping a regex expression
I was working on a project where I needed to dynamically generate a regular expression based on some user input but the string to search for needed to be escaped. Below is the quick and dirty way to do it:
/** * Utility function to replace regular expressions. * * @param input * @return */ private static String escapeRegex(String input) { String special[] = { "\\", "[", "]", "^", "$", ".", "|", "?", "*", "+", "(", ")" }; String val = input; for (String replace : special) { val = val.replace(replace, "\\" + replace); } return val; }
Comments
Post a comment