Sha256: 8d79dced46a6cab75dbb814588ef14305650662deb770f04beba0142a3f48d5c
Contents?: true
Size: 1.45 KB
Versions: 10
Compression:
Stored size: 1.45 KB
Contents
class String
BRA2KET = { '['=>']', '('=>')', '{'=>'}', '<'=>'>' }
# Return a new string embraced by given brackets.
# If only one bracket char is given it will be placed
# on either side.
#
# "wrap me".bracket('{') #=> "{wrap me}"
# "wrap me".bracket('--','!') #=> "--wrap me!"
#
# CREDIT: Trans
def bracket(bra, ket=nil)
#ket = String.bra2ket[$&] if ! ket && /^[\[({<]$/ =~ bra
ket = BRA2KET[bra] unless ket
"#{bra}#{self}#{ket ? ket : bra}"
end
# Inplace version of #bracket.
#
# CREDIT: Trans
def bracket!(bra, ket=nil)
self.replace(bracket(bra, ket))
end
# Return a new string with the given brackets removed.
# If only one bracket char is given it will be removed
# from either side.
#
# "{unwrap me}".unbracket('{') #=> "unwrap me"
# "--unwrap me!".unbracket('--','!') #=> "unwrap me"
#
# CREDIT: Trans
def unbracket(bra=nil, ket=nil)
if bra
ket = BRA2KET[bra] unless ket
ket = ket ? ket : bra
s = self.dup
s.gsub!(%r[^#{Regexp.escape(bra)}], '')
s.gsub!(%r[#{Regexp.escape(ket)}$], '')
return s
else
if m = BRA2KET[ self[0,1] ]
return self.slice(1...-1) if self[-1,1] == m
end
end
return self.dup # if nothing else
end
# Inplace version of #unbracket.
#
# CREDIT: Trans
def unbracket!(bra=nil, ket=nil)
self.replace( unbracket(bra, ket) )
end
# TODO: rename #bracket to #embrace ?
end
Version data entries
10 entries across 9 versions & 2 rubygems