FRL fill characters

This table lists the most commonly used fill characters for flat or fixed-length record layouts.

Fill character Description
\x00 NUL

null

\x01 SOH

start of heading

\x02 STX

start of text

\x03 ETX

end of text

\x04 EOT

end of transmission, not ETB

\x05 ENQ

enquiry

\x06 ACK

acknowledge

\x07 BEL

bell

\x08 BS

backspace: move print head or cursor back one space

\x09 TAB

horizontal tab: move print head or cursor to the next tab on the right

\x0A LF

line feed: move print head or cursor to a new line

\x0B VT

vertical tab: move print head or cursor down one line

\x0C FF

form feed: advance paper to the top of the next page

\x0D CR

carriage return: move print head or cursor to the leftmost column

\x0E SO

shift out: change to alternate character set

\x0F SI

shift in: revert to default character set

\x10 DLE

data link escape

\x11 DC1

device control 1

\x12 DC2

device control 2

\x13 DC3

device control 3

\x14 DC4

device control 4

\x15 NAK

negative acknowledge

\x16 SYN

synchronous idle

\x17 ETB

end of transmission block, not EOT

\x18 CAN

cancel

\x19 EM

end of medium

\x20 SP

space

\x1A SUB

substitute

\x1B ESC

escape

\x1C FS

file separator

\x1D GS

group separator

\x1E RS

record separator

\x1F US

unit separator

\x7F DEL

delete

FRL field definition fill characters

Fill characters in FRL field definition are handled as SP-0x20 by the engine.

On the CIS GUI, when an FRL file is defined using the FRL Configurator, a value is not set for the Fill Char field. The fill characters in the .frl file are an empty value.

In the runtime, the engine sees the fill character as SP-0x20.

This is the engine behavior. Some sub-fields do not display when the sub-field value is only SP-0x20 and Fill Char is not set as SP-0x20.