Safe Haskell	None
Language	Haskell2010

Data.Bytes.Parser.Leb128

Contents

Unsigned
Signed (Zig-zag)

Description

Parse numbers that have been encoded with LEB-128. LEB-128 allows arbitrarily large numbers to be encoded. Parsers in this module will fail if the number they attempt to parse is outside the range of what their target type can handle. The parsers for signed numbers assume that the numbers have been zigzig encoded.

Synopsis

word16 :: e -> Parser e s Word16
word32 :: e -> Parser e s Word32
word64 :: e -> Parser e s Word64
int16 :: e -> Parser e s Int16
int32 :: e -> Parser e s Int32
int64 :: e -> Parser e s Int64

Unsigned

word16 :: e -> Parser e s Word16 Source #

Parse a LEB-128-encoded number. If the number is larger than 0xFFFF, fails with the provided error.

word32 :: e -> Parser e s Word32 Source #

Parse a LEB-128-encoded number. If the number is larger than 0xFFFFFFFF, fails with the provided error.

word64 :: e -> Parser e s Word64 Source #

Parse a LEB-128-encoded number. If the number is larger than 0xFFFFFFFFFFFFFFFF, fails with the provided error.

Signed (Zig-zag)

int16 :: e -> Parser e s Int16 Source #

Parse a LEB-128-zigzag-encoded signed number. If the encoded number is outside the range [-32768,32767], this fails with the provided error.

int32 :: e -> Parser e s Int32 Source #

Parse a LEB-128-zigzag-encoded signed number. If the encoded number is outside the range [-2147483648,2147483647], this fails with the provided error.

int64 :: e -> Parser e s Int64 Source #

Parse a LEB-128-zigzag-encoded signed number. If the encoded number is outside the range [-9223372036854775808,9223372036854775807], this fails with the provided error.