Sha256: 3d2ead16b54239d8d33c7225c70b47009479bf2edf230cd566dcd3a14450740b
Contents?: true
Size: 1.08 KB
Versions: 13
Compression:
Stored size: 1.08 KB
Contents
# frozen_string_literal: true
module Mutant
module Repository
class Diff
module Ranges
DECIMAL = /(?:0|[1-9]\d*)/
REGEXP = /\A@@ -(#{DECIMAL})(?:,(#{DECIMAL}))? \+(#{DECIMAL})(?:,(#{DECIMAL}))? @@/
private_constant(*constants(false))
# Parse a unified diff into ranges
#
# @param [String]
#
# @return [Set<Range<Integer>>]
def self.parse(diff)
diff.lines.flat_map(&method(:parse_ranges)).to_set
end
def self.parse_ranges(line)
match = REGEXP.match(line) or return EMPTY_ARRAY
match
.captures
.each_slice(2)
.map { |start, offset| mk_range(start, offset) }
.reject { |range| range.end < range.begin }
end
private_class_method :parse_ranges
def self.mk_range(start, offset)
start = Integer(start)
::Range.new(start, start + (offset ? Integer(offset).pred : 0))
end
private_class_method :mk_range
end # Ranges
end # Diff
end # Repository
end # Ranges
Version data entries
13 entries across 13 versions & 1 rubygems