Regular Expressions for Leading white space

rubyonrails-talk
1

Can Anyone help me with regular expression which checks the string, if it contains Leading whitespaces. example => admin it contains leading space with it. so i need to check it. pls help me.

Read up on the Regex class and pattern matching in general...

str = " some string with a leading space"

if str =~ /^\s/    puts "we have a leading space" else "    puts "we don't" end

2

Philip Hallstrom wrote:

Can Anyone help me with regular expression which checks the string, if it contains Leading whitespaces. example => admin it contains leading space with it. so i need to check it. pls help me.      Read up on the Regex class and pattern matching in general...

str = " some string with a leading space"

if str =~ /^\s/    puts "we have a leading space" else "    puts "we don't" end   

Not directly related, but if you just need to remove the leading/ trailing spaces, you could use lstrip, rstrip and strip on strings.

Cheers, Mohit. 2/7/2009 | 2:25 PM.