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|
class String
def lstrip
a = 0
z = self.size - 1
a += 1 while " \f\n\r\t\v".include?(self[a]) and a <= z
(z >= 0) ? self[a..z] : ""
end
def rstrip
a = 0
z = self.size - 1
z -= 1 while " \f\n\r\t\v\0".include?(self[z]) and a <= z
(z >= 0) ? self[a..z] : ""
end
def strip
a = 0
z = self.size - 1
a += 1 while " \f\n\r\t\v".include?(self[a]) and a <= z
z -= 1 while " \f\n\r\t\v\0".include?(self[z]) and a <= z
(z >= 0) ? self[a..z] : ""
end
def lstrip!
s = self.lstrip
(s == self) ? nil : self.replace(s)
end
def rstrip!
s = self.rstrip
(s == self) ? nil : self.replace(s)
end
def strip!
s = self.strip
(s == self) ? nil : self.replace(s)
end
# call-seq:
# str.casecmp(other_str) -> -1, 0, +1 or nil
#
# Case-insensitive version of <code>String#<=></code>.
#
# "abcdef".casecmp("abcde") #=> 1
# "aBcDeF".casecmp("abcdef") #=> 0
# "abcdef".casecmp("abcdefg") #=> -1
# "abcdef".casecmp("ABCDEF") #=> 0
#
def casecmp(str)
self.downcase <=> str.downcase
end
end
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