CODEWITHSUNDEEP
regexstringtextnumberswhitespace
Gamma
Gamma

Reputation: 331

regex how can i find only two whitespace and a number?

hi i want to use regular expression with this kind of string, but i can't figure out how to do this. i try to use

\s\s5 to find this string. but i also find some string like \s\s\s\s5

123
4567
5
 5
  5
     5

you can see that there are some structure that we i need to deal with. is there anyway that i can match the 

<whitespace><whitespace>5

but not to match the string with more than two whitespace?

<whitespace><whitespace><whitespace><whitespace>5

Upvotes: 0

Views: 86

Answers (3)

MK.
MK.

Reputation: 34587

In a regular expression language where \s is a whitespace:

[^\s]\s\s5

(this will find any instance of 5 which follows 2 whitespaces, i.e. "abc 5" would match; not sure if this is your question or you are asking about beginning of the string, others have responded to that)

Upvotes: 0

craigmj
craigmj

Reputation: 5077

You need to indicate that you're looking for a full line:

^\s\s(\d+)$

where the ^ marks the start of the line and the $ the end of the line.

It also depends which language you're working in, because Java's java.util.regex.Matches has a find() method that will match inside a String, and a matches() method that will match an entire string.

Upvotes: 0

johnsyweb
johnsyweb

Reputation: 141868

Anchor your regular expression to the start of the line (^):

^\s\s5

Upvotes: 4

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