decode

Decode a StackSnapshot to a stacktrace (a list of StackEntry). The stack trace is created from return frames with according InfoProvEnt entries. To generate them, use the GHC flag -finfo-table-map. If there are no InfoProvEnt entries, an empty list is returned. Please note:

• To gather StackEntry from libraries, these have to be compiled with -finfo-table-map, too.
• Due to optimizations by GHC (e.g. inlining) the stacktrace may change with different GHC parameters and versions.
• The stack trace is empty (by design) if there are no return frames on the stack. (These are pushed every time when a case ... of scrutinee is evaluated.)

Efficiently deserialize a JSON value from a lazy ByteString. If this fails due to incomplete or invalid input, Nothing is returned.

Decode a value from a lazy ByteString, reconstructing the original structure.

Try to extract a character from a byte string. Returns Nothing if there are no more bytes in the byte string. Otherwise, it returns a decoded character and the number of bytes used in its representation. Errors are replaced by character '\0xFFFD'.

Decode a UTF8 string packed into a list of Word8 values, directly to String

Try to extract a character from a byte string. Returns Nothing if there are no more bytes in the byte string. Otherwise, it returns a decoded character and the number of bytes used in its representation. Errors are replaced by character '\0xFFFD'.

Try to extract a character from a byte string. Returns Nothing if there are no more bytes in the byte string. Otherwise, it returns a decoded character and the number of bytes used in its representation. Errors are replaced by character '\0xFFFD'.

Extract the first character for the underlying representation, if one is available. It also returns the number of bytes used in the representation of the character. See also uncons.

Decode a value from a strict ByteString, reconstructing the original structure.

Decode a base64-encoded string. This function strictly follows the specification in RFC 4648. (Note: this means that even "\n" and "\r\n" as line breaks are rejected rather than ignored. If you are using this in the context of a standard that overrules RFC 4648 such as HTTP multipart mime bodies, consider using decodeLenient.)

Decode a base64-encoded string. This function strictly follows the specification in RFC 4648.

Decode a base64url-encoded string applying padding if necessary. This function follows the specification in RFC 4648 and in RFC 7049 2.4

Deprecated: Please use decodeEither or decodeThrow, which provide information on how the decode failed

Convert bytes into text, using the provided codec. If the codec is not capable of decoding an input byte sequence, an exception will be thrown. Since 0.3.0

Decode a base16-encoded ByteString value. If errors are encountered during the decoding process, then an error message and character offset will be returned in the Left clause of the coproduct.

Examples:

decode "666f6f"  == Right "foo"
decode "66quux"  == Left "invalid character at offset: 2"
decode "666quux" == Left "invalid character at offset: 3"

Decode a base16-encoded ByteString value. If errors are encountered during the decoding process, then an error message and character offset will be returned in the Left clause of the coproduct.

Examples:

decode "666f6f" == Right "foo"
decode "66quux" == Left "invalid character at offset: 2"
decode "666quu" == Left "invalid character at offset: 3"

Efficiently deserialize CSV records from a lazy ByteString. If this fails due to incomplete or invalid input, Left msg is returned. Equivalent to decodeWith defaultDecodeOptions.

Efficiently deserialize CSV in an incremental fashion. Equivalent to decodeWith defaultDecodeOptions.

Efficiently deserialize CSV records in a streaming fashion. Equivalent to decodeWith defaultDecodeOptions.

Convert a FilePath from a platform‐specific format, suitable for use with external OS functions. Note: The type platformTextFormat can change depending upon the underlying compilation platform. Consider using fromText or decodeString instead. See Rules for more information. Since: 0.3

Convert a FilePath from a platform‐specific format, suitable for use with external OS functions. Note: The type of platformTextFormat can change depending upon the underlying compilation platform. Consider using fromText or decodeString instead. See Rules for more information. Since: 0.3

Decode a String representing a JSON value (either an object, array, bool, number, null) This is a superset of JSON, as types other than Array and Object are allowed at the top level.

Definition of a given Decoder for a type.

Definition of a given Decoder for a type.