Editing Command Processor
Editing
Command
Processor
Display
Processor I/O Processor
Figure 1. Basic system flow
System Overview ", Display ;" . new display based on the updated information. The data, starting with the ' the passed theCMS output , table, and placed In the data areas of the screen. Any messages that were ii'· : received from the Edit Processor are placed on the command " . Control is then returned to the I/O Processor. 4
The Editing Command Processor receives control from either the Display Pro-cessor or, via an SVC, from a user program. (The SVC interface is ex­
plained in Section v, Advanced Editing Facilities). In either case, the com­
mand is analyzed, processed if a recognized editing command, passed to the
CMS SUBSET if not, and control is returned to the caller. S CM
Console Stack Data
File SOS Data Data
File File I CMS input/output
translate tables . f Edit Level Virtual Screens , I/O Virtual Screen Physical
Display

,I I' , "The 'DISPLAY' EDITING SYSTEM for CMS runs as a command under CMS and is
invoked the command:' . ,,,,i EDGAR Fn Ft ,'. ,
<Fm> < Lrecl nn>
< Seq8 I NOSeq8 >
< Ctl xxxxxxxx I NOCtl> <Update I NOUpdate> < DEFault yyyyyyyy I NODEF> <CLEAR I NOCLEAR> (For an explanation of these operands and options refer to the ENTER com­
mand in Section IV of this manual). Upon initialization, and prior to reading
the first edit level file, EDGAR reads a control file named 'EDGAR $PROFILE' and, based on the information contained therein, establishes the overall
editing system environment. A standard version of this file is maintained on
the system disk. By changing the information in 'EDGAR $PROFILE' the user
can tailor the editing system to his needs.
'EDGAR $PROFILE' may be either a fixed or variable format file with a maxi­
mum record length of 130 bytes. It may contain six (6) different types of
control statements. The first positional parameter in each control statement
indicates the record type. The valid control statement types are as follows: FILE This is the default if no other valid control type is found as
the first parameter. FILE allows the user to specify default
settings, by filetype, for the operands of the ENTER (or EDGAR) command. The defaults established by this control
statement may be overridden when the command, itself, is
entered.
<FILE> file type <fiIemode> < Lrecl nn>
< Default xxxxxxxx>
<Update> _ < Ctl nnnnnnnn> <Seq8> < Noclear>
<Synonym yyyyyyyy <m»
The presence of any of the keyword operands except SYNONYM establishes the corresponding default for the
ENTER (or EDGAR) command with the matching file type . System Overview . 5