I wonder why we do not have one. Or maybe I just overlooked something?
class String
def lstripc c = ’ \r\t\n’
c = c.chr if c.kind_of? Integer
idx = 0
while c.include? self[idx]
idx += 1
end
self[idx…-1]
end
end
Thanks
Michal
On 08.05.2007 14:11, Michal S. wrote:
end
end
irb(main):016:0> s = “\r\n\tfoo”
=> “\r\n\tfoo”
irb(main):017:0> s.lstrip!
=> “foo”
irb(main):018:0> s
=> “foo”
If you want more control, the “general purpose” methods would be sub,
sub!, gsub and gsub!:
irb(main):001:0> s = “\r\n\tfoo”
=> “\r\n\tfoo”
irb(main):002:0> s.sub! %r{\A[\r\n\s]+}, ‘’
=> “foo”
irb(main):003:0> s
=> “foo”
irb(main):009:0> s = “\r\n\tfoo”
=> “\r\n\tfoo”
irb(main):010:0> s.sub! %r{\A\s+}, ‘’
=> “foo”
irb(main):011:0> s
=> “foo”
Regards
robert
On 5/8/07, Michal S. [email protected] wrote:
end
endThanks
Michal
Some random thoughts
- Chomp strips on the RHS of the string, right?
- Sometimes I would just use sub /^/, “” (or a potential
#delete as suggested in my RCR idea
- I feel rgxs should be accepted as params
- I do not like the use a string with character set semantics (again
kindly have a look at the RCR thread where somebody smarter than me
has made a very good point about this).
That all said, this might actually be a nice feature to have, but
maybe there are just to many methods there, already doing almost the
same.
This is basically one of the reasons against my RCR idea too.
Cheers
Robert
On Tue, May 08, 2007 at 09:33:43PM +0900, Robert D. wrote:
self[idx…-1]
- Sometimes I would just use sub /^/, “”
Except that would be wrong in this case, since it wouldn’t only chomp
from
the left-hand side of the string.
Use /\A…/ not /^…/
On 08/05/07, Robert K. [email protected] wrote:
self[idx…-1]
If you want more control, the “general purpose” methods would be sub,
=> “\r\n\tfoo”
irb(main):010:0> s.sub! %r{\A\s+}, ‘’
=> “foo”
irb(main):011:0> s
=> “foo”
Yes, sub! is the thing that would do chomp for things other than \r\n\t.
Not as easy but it surely works.
Thanks
Michal