Sha256: f2c3089008d1bd1e0d74a65a9a87037648b887d6348f7aebad32e199ba023d8f
Contents?: true
Size: 1.99 KB
Versions: 132
Compression:
Stored size: 1.99 KB
Contents
module Picky
module Generators
module Partial
# Generates the right substrings for use in the substring strategy.
#
class SubstringGenerator
attr_reader :from, :to
def initialize from, to
@from, @to = from, to
if @to.zero?
def each_subtoken token, &block
token.each_subtoken @from, &block
end
else
if @from < 0 && @to < 0
def each_subtoken token, &block
token.each_subtoken @from - @to - 1, (0..@to), &block
end
else
def each_subtoken token, &block
token.each_subtoken @from, (0..@to), &block
end
end
end
end
end
# The subtoken partial strategy.
#
# If given "florian"
# it will index "floria", "flori", "flor", "flo", "fl", "f"
# (Depending on what the given from value is, the example is with option from: 1)
#
class Substring < Strategy
# The from option signifies where in the symbol it
# will start in generating the subtokens.
#
# Examples:
#
# With :hello, and to: -1 (default)
# * from: 1 # => [:hello, :hell, :hel, :he, :h]
# * from: 4 # => [:hello, :hell]
#
# With :hello, and to: -2
# * from: 1 # => [:hell, :hel, :he, :h]
# * from: 4 # => [:hell]
#
def initialize options = {}
from = options[:from] || 1
to = options[:to] || -1
@generator = SubstringGenerator.new from, to
end
# Delegator to generator#from.
#
def from
@generator.from
end
# Delegator to generator#to.
#
def to
@generator.to
end
# Yields each generated partial.
#
def each_partial token, &block
@generator.each_subtoken token, &block
end
end
end
end
end
Version data entries
132 entries across 132 versions & 1 rubygems