Exchange/SNA Manual

RECEIVE Command
Exchange/SNA Commands
3–38 104700 Tandem Computers Incorporated
Magnetic Tape Files
For magnetic tape files, an EOF is written at the end of each file (which is true for all
types of files). Two EOFs are written at the end of the last file. The last file is the last
file received in a single RECEIVE command.
Escape Sequences
If you specify FORMS OFF, no vertical forms-control information is written to the
receive file. Multiple EBCDIC NLs cause n-1 blank lines.
If you specify FORMS ON, vertical forms-control information is translated to a two-
byte VFC escape sequence and then written to the receive file. Your application is
responsible for translating these escape sequences into the appropriate actions. If you
want to preserve the vertical forms-control information in a form that is directly usable
on the Tandem system, you should make the receive file a spooler location. In this
case, the vertical forms-control information is translated into the appropriate calls to
CONTROL and SETMODE.
If you receive data into an EDIT-format file, no VFC information is written to the file,
regardless of the FORMS specification.
Table 3-3 lists the vertical forms-control escape sequences that are written to the
receive file if FORMS OFF is not specified.
Table 3-3. Vertical Forms-Control Escape Sequences
Data Link Code Type
ASCII EBCDIC Carriage Operation After Printing
ESC Q ESC / Single Space
ESC R ESC S Double Space
ESC S ESC T Triple Space
ESC A ESC A Skip to Channel 1
ESC B ESC B Skip to Channel 2
ESC C ESC C Skip to Channel 3
ESC D ESC D Skip to Channel 4
ESC E ESC E Skip to Channel 5
ESC F ESC F Skip to Channel 6
ESC G ESC G Skip to Channel 7
ESC H ESC H Skip to Channel 8
ESC I ESC I Skip to Channel 9
ESC J ESC J Skip to Channel 10
ESC K ESC K Skip to Channel 11
ESC L ESC L Skip to Channel 12
ESC M ESC M No Space