Use bit_at utility function

src/body.jl

@@ -8,8 +8,8 @@ import Base.show
 
 export RecordHeader, read_row
 
-include("mesg_num.jl")
-using .mesg_num
+include("bytes.jl"); using.bytes
+include("mesg_num.jl"); using .mesg_num
 
 struct DefinitionMessage end
 struct DataMessage end
@@ -21,6 +21,7 @@ The byte that corresponds to the type of message that this record holds.
 """
 struct RecordHeader
     definition_message::Bool
+    timestamp_message::Bool
 end
 
 
@@ -32,13 +33,11 @@ TODO: Endianness matters here. Need to resolve endianness with the architecture
 """
 function read_row(f::IO)
     header_byte = read(f, 1; all=false)[1]
-    println(bitstring(header_byte))
 
     # The message byte is 7
-    RecordHeader(Bool(parse(Int64, bitstring(header_byte)[2])))
-end
-
-function read_header_byte(f::Core.IO)
+    RecordHeader(
+        bit_at(header_byte, 2),
+        bit_at(header_byte, 1))
 end
 
 function show(io::IO, header::RecordHeader)

src/bytes.jl

@@ -1,3 +1,6 @@
+module bytes
+
+export byte_vec_to_int, byte_vec_to_string, bit_at
 
 """
     read_data_size(size::Vector{UInt8})::Real
@@ -23,4 +26,14 @@ function byte_vec_to_string(byte_vec::Vector{UInt8})::AbstractString
     String(Char.(byte_vec))
 end
 
+"""
+    bit_at(byte::UInt8, idx::Int64; t::Type=Int64)::Int64
+
+Parse the bit at specific index in byte
+"""
+function bit_at(byte::UInt8, idx::Int64; t::Type=Int64)::Int64
+    parse(t, bitstring(byte)[idx])
+end
+
+end
 # byte_vec_to_string(UInt8.(collect("ABC")))

src/header.jl

@@ -7,7 +7,8 @@
 module header
 
 export FITHeader, read_header
-include("bytes.jl")
+
+include("bytes.jl"); using .bytes
 
 const DATA_SIZE_LENGTH = 4