regex - Java regular expressions for specific name\value format -

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i'm not familiar yet java regular expressions. want validate string has following format:

string input = "[name1 value1];[name2 value2];[name3 value3];";

namei , valuei strings should contain characters expect white-space.

i tried expression: 

string regex = "([\\s*\\s\\s*];)*";

but if call matches() false string.

what's best regular expression it?

this trick:

(?:\[\w.*?\s\w.*?\];)*

if want match 3 of these, replace * @ end {3}.

explanation:

  • (?:: start of non-capturing group

  • \[: escapes [ sign meta-character in regex. allows used matching.

  • \w.*?: lazily matches word character [a-z][a-z][0-9]_. lazy matching means attempts match character few times possible, in case meaning when stop matching once finds following \s.

  • \s: matches 1 whitespace

  • \]: see \[

  • ;: matches 1 semicolon

  • ): end of non-capturing group

  • *: matches number of contained in preceding non-capturing group.

see link demonstration


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