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Versions: 10
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Contents
# frozen_string_literal: true
module Riemann
module Tools
module Utils # :nodoc:
class StringTokenizer
attr_reader :tokens
def initialize(text)
@scanner = StringScanner.new(text)
@lineno = 1
@pos = 0
@line = next_line
@tokens = []
end
def scan(expression)
@scanner.scan(expression)
end
def eos?
@scanner.eos?
end
def matched
@scanner.matched
end
def next_line
(@scanner.check_until(/\n/) || @scanner.rest).chomp
end
def push_token(token, value = nil)
value ||= @scanner.matched
if value == "\n"
@lineno += 1
@line = next_line
@pos = pos = 0
else
pos = @pos
@pos += @scanner.matched.length
end
@tokens << [token, { value: value, line: @line, lineno: @lineno, pos: pos }] if token
end
def unexpected_token
raise(Racc::ParseError, "unexpected data on line #{@lineno}:\n#{@line}\n#{' ' * @pos}^")
end
end
def reverse_numeric_sort_with_header(data, header: 1, count: 10)
lines = data.chomp.split("\n")
header = lines.shift(header)
lines.sort_by!(&:to_f)
lines.reverse!
(header + lines[0, count]).join("\n")
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems