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# encoding: utf-8
# Phusion Passenger - https://www.phusionpassenger.com/
# Copyright (c) 2024 Phusion Holding B.V.
#
# "Passenger", "Phusion Passenger" and "Union Station" are registered
# trademarks of Phusion Holding B.V.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
module PhusionPassenger
module Utils
# A minimal pure-Ruby StringScanner implementation so that
# PhusionPassenger::Utils::JSON doesn't have to depend on the 'strscan' gem.
class StringScanner
attr_reader :pos, :matched
def initialize(data)
@data = data
@pos = 0
@matched = nil
end
def getch
@matched =
if @pos < @data.size
@pos += 1
@data[@pos - 1]
else
nil
end
end
def scan(pattern)
md = @data[@pos .. -1].match(/\A#{pattern}/)
@matched =
if md
@pos += md[0].size
@matched = md[0]
else
nil
end
end
def reset
@pos = 0
end
end
end # module Utils
end # module PhusionPassenger
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