HPDFASCII85DecodeStream Procedure

Decodes ASCII85 data incrementally from one caller-owned stream to another

Declaration

procedure HPDFASCII85DecodeStream(Input, Output: TStream;
  RequireTerminator: Boolean; out Info: THPDFASCII85DecodeInfo);

HPDFTypes

Name	Purpose
`Input`	ASCII85 source at its current position
`Output`	Destination that receives decoded bytes at its current position
`RequireTerminator`	Requires the exact PDF `~>` end marker when True
`Info`	Receives consumed and produced byte counts, end-marker state, partial-group length, and zero-shortcut count

Whitespace permitted by PDF is ignored between encoded characters
The z shortcut is accepted only at a group boundary
When the input is seekable, bytes buffered after the end marker remain unread for the caller
Invalid characters, one-character final groups, groups outside the 32-bit range, or malformed end markers raise EConvertError
The procedure does not own either stream and the input and output must be different