Menu
I need to create an expression matching a whole number followed by either "seconds" or ""minutes"
I tried this expression: ([0-9]+)\s+(\bseconds\b)|(\bminutes\b)
It works fine for seconds, but not minutes.
E.g. "5 seconds" gives 5;seconds; while "5 minutes" gives ;;minutes
558
However, to recognize multiple words in any order using regex, I'd suggest the use of quantifier in regex: (\b(james|jack)\b. *){2,} . Unlike lookaround or mode modifier, this works in most regex flavours.
To match a character having special meaning in regex, you need to use a escape sequence prefix with a backslash ( \ ). E.g., \. matches "." ; regex \+ matches "+" ; and regex \( matches "(" . You also need to use regex \\ to match "\" (back-slash).
The character + in a regular expression means "match the preceding character one or more times". For example A+ matches one or more of character A. The plus character, used in a regular expression, is called a Kleene plus .
A word boundary, in most regex dialects, is a position between \w and \W (non-word char), or at the beginning or end of a string if it begins or ends (respectively) with a word character ( [0-9A-Za-z_] ).
You just missed an extra pair of brackets for the "OR" symbol. The following should do the trick:
([0-9]+)\s+((\bseconds\b)|(\bminutes\b)) Without those you were either matching a number followed by seconds OR just the word minutes
121
You can use a single group for seconds/minutes. The following expression may suit your needs:
([0-9]+)\s*(seconds|minutes) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
