Sha256: 0eab88d284a776a9ba9fa0fa0d248a0e3a403581574f028fe3d0fc3e61e5f0a7
Contents?: true
Size: 1.13 KB
Versions: 10
Compression:
Stored size: 1.13 KB
Contents
class String
# Like #index but returns a Range.
#
# "This is a test!".range('test') #=> (10..13)
#
# CREDIT: Trans
def range(pattern, offset=0)
unless Regexp === pattern
pattern = Regexp.new(Regexp.escape(pattern.to_s))
end
string = self[offset..-1]
if md = pattern.match(string)
return (md.begin(0)+offset)..(md.end(0)+offset-1)
end
nil
end
# Like #index_all but returns an array of Ranges.
#
# "abc123abc123".range_all('abc') #=> [0..2, 6..8]
#
# TODO: Add offset ?
#
# CREDIT: Trans
def range_all(pattern, reuse=false)
r = []; i = 0
while i < self.length
rng = range(pattern, i)
if rng
r << rng
i += reuse ? 1 : rng.end + 1
else
break
end
end
r.uniq
end
# Returns an array of ranges mapping
# the characters per line.
#
# "this\nis\na\ntest".range_of_line
# #=> [0..4, 5..7, 8..9, 10..13]
#
# CREDIT: Trans
def range_of_line
offset=0; charmap = []
each_line do |line|
charmap << (offset..(offset + line.length - 1))
offset += line.length
end
charmap
end
end
Version data entries
10 entries across 9 versions & 2 rubygems