Regular expression to allow space between two string?

Question

I have following pattern to validate the String

pattern ="^[a-zA-Z0-9_{}#$\/\-\+@!?()^%$`~|:,.=\[\]]*$"

But here it is not accepting space between two string as well.Can someone please tell me what changes i have to do in above pattern so it will allow space between two string? But Space should not be allowed at the beginning and end of string.

refer http://stackoverflow.com/questions/15472764/regular-expression-to-allow-spaces-between-words — sasikumar, Feb 26 '16 at 09:12
`pattern ="(?=^[^\s]+(.*[^\s]+)*$)^[a-zA-Z0-9_{}#$\/\-\+@!?()^%$\`~|:,.=\[\]\s]*$"` — Pranav C Balan, Feb 26 '16 at 09:15

Pranav C Balan · Answer 1 · 2016-02-26T09:22:32.873

1

You can use positive lookahead assertion and use \s for matching whitespace and [^\s] or \S for non-whitespace

pattern ="(?=^[^\s]+(.*[^\s]+)*$)^[a-zA-Z0-9_{}#$\/\-\+@!?()^%$`~|:,.=\[\]\s]*$"

Regex explanation

Regular expression visualization

edited Feb 26 '16 at 09:22

answered Feb 26 '16 at 09:17

Pranav C Balan

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Regular expression to allow space between two string?

1 Answers1