Sha256: 2b009e6e748bb3b9993bfb86c62e5aad4c02c2f582b4924d7dfdef503794305b
Contents?: true
Size: 940 Bytes
Versions: 26
Compression:
Stored size: 940 Bytes
Contents
class String
# Retrns _n_ characters of the string. If _n_ is positive
# the characters are from the beginning of the string.
# If _n_ is negative from the end of the string.
#
# Alternatively a replacement string can be given, which will
# replace the _n_ characters.
#
def nchar( n, replacement=nil )
if replacement
s = self.dup
n > 0 ? (s[0...n] = replacement) : (s[n..-1] = replacement)
return s
else
n > 0 ? self[0...n] : self[n..-1]
end
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCString < Test::Unit::TestCase
def test_nchar
assert_equal( "abc", "abcxyz".nchar(3) )
assert_equal( "xyz", "abcxyz".nchar(-3) )
assert_equal( "HIxyz", "abcxyz".nchar(3, 'HI') )
assert_equal( "abcHI", "abcxyz".nchar(-3, 'HI') )
end
end
=end
Version data entries
26 entries across 26 versions & 1 rubygems