Bits that can be set in $OPTIONS HASH

DEF ENUM enumeration name OPENFLAGS_ENUM

Enumeration Value	Value	Description
_OPTIONS_HASH_STREAM_APPEND	1	open in append mode
_OPTIONS_HASH_STREAM_SYNC	2	open as unbuffered synchronous device (Unix only)
_OPTIONS_HASH_STREAM_NDELAY	4	open in non-blocking mode
_OPTIONS_HASH_STREAM_NOLOOP	8	do not loop on writes
_OPTIONS_HASH_TERMINATE_ON	1	operate in record more
_OPTIONS_HASH_TERMINATE_TOSS_CR	2	ignore DOH_IGNORE_CHAR byte
_OPTIONS_HASH_TERMINATE_TRUNCATE	4	truncation allowed if no EOR char and buffer too small
_OPTIONS_HASH_STATUS_BUFFER_ALLOCATED	1	buffer allocated
_OPTIONS_HASH_STATUS_CR_TOSSED	2	ignore chara detected in this read
_OPTIONS_HASH_STATUS_TERMINATOR_TOSSED	4	terminate char detected
_OPTIONS_HASH_STATUS_TRUNCATED	8	read truncated due to buffer filling

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