Date format matching in Groovy

Question

Hi I have a string that looks like this - Wednesday 16 January 2019. I want to check in groovy if this date matches with the format EEEE DD MMMM YYYY. Is there a way to do this?

Are there any inbuilt functions that I can use or regex is my only option?

Cheers!

score 1 · Accepted Answer · answered Jan 24 '19 at 03:00

1

You can try parse it with pattern EEEE dd MMMM yyyy, if exception is thrown, then it is not in this pattern, in java it looks like:

public boolean isInDesiredFormat(String input) {
    try {
        DateTimeFormatter format = DateTimeFormatter.ofPattern("EEEE dd MMMM yyyy", Locale.ENGLISH);
        LocalDate.parse(input, format);
        return true;
    } catch (Exception ignore) {
        ignore.printStackTrace();
        return false;
    }
}

answered Jan 24 '19 at 03:00

xingbin

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As explained in [this answer](https://stackoverflow.com/a/39649815/5772882) you will probably want to apply `ResolverStyle.STRICT ` for stricter validation. – Ole V.V. Jan 24 '19 at 13:08

Date format matching in Groovy

1 Answers1