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Contents
module Utils
module Patterns
class Pattern
def initialize(opts = {})
@cset = opts[:cset]
@icase = opts[:icase]
@pattern = opts[:pattern] or
raise ArgumentError, "pattern option required"
@pattern = @pattern.gsub(/[^#{@cset}]/, '') if @cset
end
attr_reader :matcher
def method_missing(*a, &b)
@matcher.__send__(*a, &b)
rescue ArgumentError => e
raise e unless e.message.include?('invalid byte sequence in UTF-8')
end
end
class FuzzyPattern < Pattern
def initialize(opts = {})
super
r = @pattern.split(//).grep(/[[:print:]]/).map { |x|
"(#{Regexp.quote(x)})"
} * '.*?'
@matcher = Regexp.new(
"\\A(?:.*/.*?#{r}|.*#{r})",
@icase ? Regexp::IGNORECASE : 0)
end
end
class RegexpPattern < Pattern
def initialize(opts = {})
super
@matcher = Regexp.new(@pattern, @icase ? Regexp::IGNORECASE : 0)
end
end
def choose(argument, pattern_opts, default: ?f)
case argument
when /^r/, (default == ?r ? nil : :not)
RegexpPattern.new(pattern_opts)
when /^f/, (default == ?f ? nil : :not)
FuzzyPattern.new(pattern_opts)
else
raise ArgumentError, 'argument -p has to be f=fuzzy or r=regexp'
end
end
end
end
Version data entries
77 entries across 77 versions & 1 rubygems