module GBTiles::DataType
Public Class Methods
boolean(src)
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BOOLEAN 1 BYTE
# File lib/gbtiles/helpers/data_type.rb, line 62 def self.boolean src src.slice!(0, 1).unpack("C")[0].eql? 1 end
boolean!(src)
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# File lib/gbtiles/helpers/data_type.rb, line 66 def self.boolean! src self.boolean(src.slice!(0, 1)) end
bword(src)
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BWORD BIG ENDIAN 2 BYTES
# File lib/gbtiles/helpers/data_type.rb, line 84 def self.bword src src.slice(0, 2).unpack("n*")[0] end
bword!(src)
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# File lib/gbtiles/helpers/data_type.rb, line 88 def self.bword! src self.bword(src.slice!(0, 2)) end
byte(src)
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BYTE 1 BYTE
# File lib/gbtiles/helpers/data_type.rb, line 52 def self.byte src src.slice(0, 1).unpack("C*")[0] end
byte!(src)
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# File lib/gbtiles/helpers/data_type.rb, line 56 def self.byte! src self.byte(src.slice!(0, 1)) end
long(src)
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LITTLE ENDIAN 32 BIT INTEGER 4 BYTES
# File lib/gbtiles/helpers/data_type.rb, line 73 def self.long src src.slice(0, 4).unpack("V*")[0] end
long!(src)
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# File lib/gbtiles/helpers/data_type.rb, line 77 def self.long! src self.long(src.slice!(0, 4)) end
string(src, length = nil)
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# File lib/gbtiles/helpers/data_type.rb, line 3 def self.string src, length = nil if src.nil? then return nil end if !length.nil? then string = src.slice(0, length) else string = src end if !string.nil? then string = string.split(/\0/).first end if !string.nil? then string = string.unpack("A*")[0] end string end
string!(src, length = nil)
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# File lib/gbtiles/helpers/data_type.rb, line 25 def self.string! src, length = nil if src.nil? then return nil end if !length.nil? then string = src.slice!(0, length) else string = src end self.string(string, length) end
word(src)
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WORD LITTLE ENDIAN 2 BYTES
# File lib/gbtiles/helpers/data_type.rb, line 42 def self.word src src.slice(0, 2).unpack("v*")[0] end
word!(src)
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# File lib/gbtiles/helpers/data_type.rb, line 46 def self.word! src self.word(src.slice!(0, 2)) end