Connect PowerNet 3270, Справочное руководство

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Connect, Inc. Dialog Language Objects
February 1998 4-3
3270 Keystrokes
Several special keys are defined for 3270 sessions. The <Enter> key forces a
transmission to the host. Within an unformatted PS, all data entry is followed by
the <Enter> key. Within a formatted PS, the <Tab> or <Backtab> key is used to
move between entry fields. Once the required data has been entered, the <Enter>
key is usually used to send the field information up to the host. Some host
transactions also call for the use of the clear and programmable function <
pf
>
keys during the logon procedure. The Dialog language provides for the generation
of all of these keystrokes.
Script File Format
The script file is a text file created and edited with the system editor. Each line in
the file is a single entry that may contain one of the following constructs:
Command
Comment
Blank line
The command verbs and their arguments are presented in the following sections.
Comments entries must begin with the
#
character on the left margin. Tabs and
spaces may precede all other entries. The script file is named using the convention
of up to 8 lower case characters followed by
.cmd
(lower case). The script is
placed in the
crf
directory of the server.
If necessary, multiple scripts can be created and used in diverse situations. These
are linked to specific Host List entries with the 3270 handler. Terminal operators
can then select options from the Host List which appears on the RF Terminal.
Command Verbs and Arguments
The command verbs provide conditional branching and control over both the
terminal and host sessions. Many commands require arguments. In the case of
verbs with multiple arguments, the arguments are separated by commas and the
command line requires a semicolon character for termination. Verbs with less than
two arguments must
not
have a semicolon terminator.
Those verbs with argument lists require that all arguments are supplied. If an
argument is blank, indicated this with a hyphen (-).
Substitutable Parameters
Up to 10 substitutable parameters may be used for string and numeric data storage
and manipulation within the script. They are numbered from 0 to 9. The parameter