Hi,
Does anyone know how to ignore whitespace in the target string (Not in
the expression itself, which is what I believe /x does)?
eg question.match(/\{(male|female),[0-99][0-99]\%\}/)
# "{male/female,50%}" vs # "{male/female, 50%}"
Thanks,
Dave
Dave Castellano (dcastellano1)
on 2014-02-02 19:34
Joel Pearson (virtuoso)
on 2014-02-02 20:16
Just remove all the whitespace before you match. question.gsub(/\s+/, '').match ...
Mike Stok (Guest)
on 2014-02-02 20:31
On Feb 2, 2014, at 1:34 PM, Dave Castellano <lists@ruby-forum.com> wrote: > Dave > > -- > Posted via http://www.ruby-forum.com/. You can use \s* to match 0 or more "whitespace" characters, for example /\{ # opening { ((?:fe)?male) # male or female stored into $1 , # a comma \s* # zero or more spaces 0*?(100|[1-9]\d|\d)% # soak up leading 0s and then have a valid percentage (0 - 100) -> $2 % # then an % \} # then a closing } /x might do what you want. You can play with it at http://rubular.com/r/ASK9yMubOH to see if it does Hope this helps, Mike -- Mike Stok <mike@stok.ca> http://www.stok.ca/~mike/ The "`Stok' disclaimers" apply.
Mike Stok (Guest)
on 2014-02-02 20:47
On Feb 2, 2014, at 2:30 PM, Mike Stok <mike@stok.ca> wrote: >> > , # a comma > \s* # zero or more spaces > 0*?(100|[1-9]\d|\d)% # soak up leading 0s and then have a valid percentage (0 - 100) -> $2 There shouldn't be a % in the line above *and* the line below, I made a mistake while adding comments! > -- > -- Mike Stok <mike@stok.ca> http://www.stok.ca/~mike/ The "`Stok' disclaimers" apply.
On Sun, Feb 2, 2014 at 7:34 PM, Dave Castellano <lists@ruby-forum.com> wrote: > Hi, > > Does anyone know how to ignore whitespace in the target string (Not in > the expression itself, which is what I believe /x does)? > > eg question.match(/\{(male|female),[0-99][0-99]\%\}/) You want "\/" rather than "|" between "male" and "female" to match the given strings. > # "{male/female,50%}" vs # "{male/female, 50%}" As Mike said, you can use \s* to match arbitrary sequences of whitespace (including the empty one). irb(main):005:0> "{male/female,50%}".match(/\{(male\/female),\s*[0-99][0-99]\%\}/) => #<MatchData "{male/female,50%}" 1:"male/female"> irb(main):006:0> "{male/female, 50%}".match(/\{(male\/female),\s*[0-99][0-99]\%\}/) => #<MatchData "{male/female, 50%}" 1:"male/female"> I just notice you have a duplicate 9 in the character class. And you do not need to escape %. You probably rather want: /\{(male\/female),\s*\d{1,2}%\}/ Kind regards robert
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