English
资源说明：dwg file format
an attempt to specify the dwg (r12) file format using the bff grammar for
binary files.
acknowledgements
i would like to thank reini urban for his
contributions.
definition of the elementary elements
typedef word word :=
byte : b1, byte : b2
return (word)f | ((word)s << 8).
typedef longword longp :=
byte : b1, byte : b2, byte : b3, byte : b4
return (longword)b1 | ((longword)b2 << 8)
| ((longword)b3 << 16) | ((longword)b4 << 24).
typedef longword longword :=
byte : b1, byte : b2, byte : b3, byte : b4
return (longword)b1 | ((longword)b2 << 8)
| ((longword)b3 << 16) | ((longword)b4 << 24).
definition of the whole file
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