DEFINE
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VMS Help DEFINE *Conan The Librarian (sorry for the slow response - running on an old VAX) |
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The DEFINE command creates a logical name which represents one or
more equivalence names. An equivalence name can be a device name,
another logical name, a file specification, or any other string.
The use of a logical name can be limited to a process, a job,
or a group, or it can be used by an entire system or an entire
OpenVMS Cluster system. It depends on the table in which the
logical name is created, which you specify with one of the
following qualifiers: /PROCESS, /JOB, /GROUP, /SYSTEM, or /TABLE.
These first four qualifiers represent the process, job, group,
or system logical name tables, respectively, whereas the /TABLE
qualifier is used to specify any type of table. Furthermore,
the /TABLE qualifier is the only one to use when specifying a
clusterwide logical name table.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted. If you do not specify a table with one of these
qualifiers, the logical name is added to your process logical
name table.
To specify the access mode of the logical name you are creating,
use the /USER_MODE, the /SUPERVISOR_MODE, or the /EXECUTIVE_MODE
qualifier. If you enter more than one of these qualifiers, only
the last one entered is accepted. If you do not specify an access
mode, a supervisor-mode name is created. You can create a logical
name in the same mode as the table in which you are placing the
name, or in an outer mode. (User mode is the outermost mode;
executive mode is the innermost mode.)
You can also:
o Define a characteristic name for the system queues (see
/CHARACTERISTIC).
o Define a form name and number and the characteristics of the
physical paper stock for printer and terminal queues (see
/FORM).
o Associate an equivalence string and a set of attributes with a
key on the terminal keyboard (see /KEY).
Format
DEFINE logical-name equivalence-name[,...]
| 1 - Parameters |
logical-name
Specifies the logical name string, which is a character string
containing from 1 to 255 characters. The following rules apply:
o If the logical name is to be entered into the process or
system directory logical name tables (LNM$PROCESS_DIRECTORY,
LNM$SYSTEM_DIRECTORY), then the name can only have from 1 to
31 alphanumeric characters, including the dollar sign ($) and
underscore (_).
o If you specify a colon (:) at the end of a logical name, the
DEFINE command saves the colon as part of the logical name.
(This is in contrast to the ASSIGN command, which removes the
colon before placing the name in a logical name table.) By
default, the logical name is placed in the process logical
name table.
o If the string contains any characters other than uppercase
alphanumerics, the dollar sign, or the underscore character,
enclose the string in quotation marks (" "). Use two sets of
quotation marks ("" "") to denote actual quotation marks.
When you enclose a name in quotation marks, the case of
alphabetic characters is preserved.
equivalence-name[,...]
Specifies a character string containing from 1 to 255 characters.
The following rules apply:
o If the string contains any characters other than uppercase
alphanumerics, the dollar sign, or the underscore character,
enclose the string in quotation marks. Use two sets of
quotation marks to denote an actual quotation mark. Specifying
more than one equivalence name for a logical name creates a
search list.
o When you specify an equivalence name that will be used as a
file specification, you must include the punctuation marks
(colons, brackets, periods) that would be required if the
equivalence name were used directly as a file specification.
Therefore, if you specify a device name as an equivalence
name, you must terminate the equivalence name with a colon.
The DEFINE command allows you to assign multiple equivalence
names to a single logical name. For example, you can use the same
logical name to access different directories on different disks
or to access different files in different directories.
| 2 - Qualifiers |
2.1 - /EXECUTIVE_MODE
Requires SYSNAM (system logical name) privilege to create an
executive-mode logical name.
Creates an executive-mode logical name in the specified table.
If you specify the /EXECUTIVE_MODE qualifier and you do not have
SYSNAM privilege, the DEFINE command ignores the qualifier and
creates a supervisor-mode logical name. The mode of the logical
name must be the same or less privileged than the mode of the
table in which you are placing the name.
2.2 - /GROUP
Requires GRPNAM (group logical name) or SYSNAM (system logical
name) privilege to place a name in the group logical name table.
Places the logical name in the group logical name table. Other
users who have the same group number in their user identification
codes (UICs) can access the logical name. The /GROUP qualifier is
synonymous with the /TABLE=LNM$GROUP qualifier.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted.
2.3 - /JOB
Places the logical name in the jobwide logical name table. All
processes in the same job tree as the process that created the
logical name can access the logical name. The /JOB qualifier is
synonymous with the /TABLE=LNM$JOB qualifier.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted.
2.4 - /LOG
/LOG (default)
/NOLOG
Displays a message when a new logical name supersedes an existing
name.
2.5 - /NAME_ATTRIBUTES
/NAME_ATTRIBUTES[=(keyword[,...])]
Specifies attributes for a logical name. By default, no
attributes are set. Possible keywords are as follows:
CONFINE The logical name is not copied into a spawned
subprocess. This qualifier is relevant only for logical
names in a private table.
The logical name inherits the CONFINE attribute from
the logical name table where it is entered; if the
logical name table is "confined," then all names in the
table are "confined."
NO_ALIAS A logical name cannot be duplicated in the specified
table in a less privileged access mode; any previously
created identical names in an outer (less privileged)
access mode within the specified table are deleted.
If you specify only one keyword, you can omit the parentheses.
Only the attributes you specify are set.
2.6 - /PROCESS
/PROCESS (default)
Places the logical name in the process logical name table. The
/PROCESS qualifier is synonymous with the /TABLE=LNM$PROCESS
qualifier.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted.
2.7 - /SUPERVISOR_MODE
/SUPERVISOR_MODE (default)
Creates a supervisor-mode logical name in the specified table.
The mode of the logical name must be the same as or less
privileged than the mode of the table in which you are placing
the name.
2.8 - /SYSTEM
Requires write (W) access or SYSNAM (system logical name)
privilege to place a name in the system logical name table.
Places the logical name in the system logical name table. All
system users can access the logical name. The /SYSTEM qualifier
is synonymous with the /TABLE=LNM$SYSTEM qualifier.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted.
2.9 - /TABLE
/TABLE=name
Requires write (W) access to the table to specify the name of a
shareable logical name table.
Specifies the name of the logical name table in which the logical
name is to be entered. You can use the /TABLE qualifier to
specify a user-defined logical name table (created with the
CREATE/NAME_TABLE command); to specify the process, job, group,
system, or clusterwide logical name tables; or to specify the
process or system logical name directory tables.
If you specify the table name using a logical name that has more
than one translation, the logical name is placed in the first
table found. For example, if you specify DEFINE/TABLE=LNM$FILE_
DEV and LNM$FILE_DEV is equated to LNM$PROCESS, LNM$JOB,
LNM$GROUP, and LNM$SYSTEM, then the logical name is placed in
LNM$PROCESS.
The default is the /TABLE=LNM$PROCESS qualifier.
If you enter more than one of the qualifiers /PROCESS, /JOB,
/GROUP, /SYSTEM, or /TABLE, only the last one entered is
accepted.
2.10 - /TRANSLATION_ATTRIBUTES
/TRANSLATION_ATTRIBUTES[=(keyword[,...])]
Equivalence-name qualifier.
Specifies one or more attributes that modify an equivalence
string of the logical name. Possible keywords are as follows:
CONCEALED Indicates that the equivalence string is the name of
a concealed device. When a concealed device name is
defined, the system displays the logical name, rather
than the equivalence string, in messages that refer to
the device.
TERMINAL Logical name translation should terminate with
the current equivalence string; indicates that
the equivalence string should not be translated
iteratively.
If you specify only one keyword, you can omit the parentheses.
Only the attributes you specify are set.
Note that different equivalence strings of a logical name can
have different translation attributes.
2.11 - /USER_MODE
Creates a user-mode logical name in the specified table.
User-mode logical names created within the process logical
name tables are used for the execution of a single image; for
example, you can create a user-mode logical name to allow an
image executing in a command procedure to redefine SYS$INPUT.
User-mode entries are deleted from the process logical name table
when any image executing in the process exits (that is, after
a DCL command or user program that executes an image completes
execution). Also, user-mode logical names are automatically
deleted when invoking and exiting a command procedure.
| 3 - Examples |
1.$ DEFINE/USER_MODE TM1 $DISK1:[ACCOUNTS.MEMOS]WATER.TXT
In this example, the DEFINE command defines TM1 as equivalent
to a file specification. After the next image runs, the logical
name TM1 is automatically deassigned.
2.$ DEFINE CHARLIE XXX1:[CHARLES]
$ PRINT CHARLIE:TEST.DAT
Job 274 entered on queue SYS$PRINT
In this example, the DEFINE command associates the logical name
CHARLIE with the directory name [CHARLES] on the disk XXX1. The
PRINT command queues a copy of the file XXX1:[CHARLES]TEST.DAT
to the system printer.
3.$ DEFINE PROCESS_NAME LIBRA
$ RUN WAKE
In this example, the DEFINE command places the logical name
PROCESS_NAME in the process logical name table with an
equivalence name of LIBRA. The logical name is created in
supervisor mode. The program WAKE translates the logical name
PROCESS_NAME to perform some special action on the process
named LIBRA.
4.$ DEFINE TEMP: XXX1:
.
.
.
$ DEASSIGN TEMP::
In this example, the DEFINE command creates an equivalence
name for the logical name TEMP: and places the name in the
process logical name table. The colon is retained as part of
the logical name. The DEASSIGN command deletes the logical
name. Note that two colons are required on the logical name
in the DEASSIGN command. One colon is deleted by the DEASSIGN
command. The other colon is kept as part of the logical name.
5.$ DEFINE PORTLAND PRTLND::YYY0:[DECNET.DEMO.COM]
In this example, the DEFINE command places the logical name
PORTLAND in the process logical name table with an equivalence
name of PRTLND::YYY0:[DECNET.DEMO.COM]. Subsequent references
to the logical name PORTLAND result in the correspondence
between the logical name PORTLAND and the node, disk, and
subdirectory specified.
6.$ DEFINE LOCAL "BOSTON""JAY_SABLE JKS""::"
In this example, the DEFINE command places the logical name
LOCAL in the process logical name table with a remote node
equivalence name of BOSTON"JAY_SABLE JKS"::. To satisfy
conventions for local DCL command string processing, you
must use three sets of quotation marks. The quotation marks
ensure that access control information is enclosed in one set
of quotation marks in the equivalence name.
7.$ DEFINE MYDISK XXX0:[MYDIR], YYY0:[TESTDIR]
In this example, the DEFINE command places the logical name
MYDISK in the process logical name table with two equivalence
names: XXX0:[MYDIR] and YYY0:[TESTDIR].
8.$ DEFINE/TABLE=LNM$CLUSTER_TABLE FIRENZE FIRENZE::FIESOLE:[ETRUSCAN]
In this example, the DEFINE command equates FIRENZE to the
directory specification FIRENZE::FIESOLE:[ETRUSCAN] and places
both the new logical name (FIRENZE) and its equivalence string
(FIRENZE::FIESOLE:[ETRUSCAN]) in the default clusterwide table.
The new logical name is automatically propagated to all nodes
in the cluster.
9.$ CREATE/NAME_TABLE TABLE1
$ DEFINE/TABLE=LNM$PROCESS_DIRECTORY LNM$FILE_DEV -
_$ TABLE1,LNM$PROCESS,LNM$JOB,LNM$GROUP,LNM$SYSTEM
$ DEFINE/TABLE=TABLE1 -
_$ /TRANSLATION_ATTRIBUTES=CONCEALED WORK_DISK DKA1:
In this example, the CREATE/NAME_TABLE command creates the
process private logical name table TABLE1.
The first DEFINE command ensures that TABLE1 is searched
first in any logical name translation of a device or file
specification (because TABLE1 is the first item in the
equivalence string for the logical name LNM$FILE_DEV, which
determines the default search sequence of logical name tables
whenever a device or file specification is translated).
The second DEFINE command assigns the logical name WORK_DISK
to the physical device DKA1 and places the name in TABLE1.
The logical name has the concealed attribute. Therefore, the
logical name WORK_DISK is displayed in system messages.
10$ CREATE/NAME_TABLE SPECIAL
$ DEFINE/TABLE=LNM$PROCESS_DIRECTORY LNM$FILE_DEV -
_$ SPECIAL,LNM$PROCESS,LNM$JOB,LNM$GROUP,LNM$SYSTEM
$ DEFINE/TABLE=LNM$PROCESS_DIRECTORY TAB SPECIAL
$ DEFINE/TABLE=TAB REPORT [CHELSEA]STORES
$ SHOW LOGICAL/TABLE=SPECIAL REPORT
"REPORT" = "[CHELSEA]STORES" (SPECIAL)
In this example, the CREATE/NAME_TABLE command is used to
create a new logical name table called SPECIAL. This table
is defined in the process directory, LNM$PROCESS_DIRECTORY.
The first DEFINE command ensures that SPECIAL is searched
first in any logical name translation of a device or file
specification (because SPECIAL is the first item in the
equivalence string for the logical name LNM$FILE_DEV, which
determines the default search sequence of logical name tables
whenever a device or file specification is translated). The
logical name LNM$FILE_DEV is placed in the process directory,
LNM$PROCESS_DIRECTORY.
With the next DEFINE command, a new logical name, TAB, is
defined. TAB translates to the string SPECIAL, which identifies
a logical name table. You must define TAB in the process
directory because it translates iteratively to a logical name
table.
Next, the logical name REPORT is placed into the logical name
table TAB. Because TAB translates to the table SPECIAL, the
name REPORT is entered into SPECIAL table. The SHOW LOGICAL
command verifies that the name REPORT has been entered into the
table SPECIAL.
Note that you can redefine TAB so it translates to a different
table. Therefore, if you run different programs that use the
name TAB as a table name, you can change the actual tables
where the names are entered or referenced.
4 - /CHARACTERISTIC
Assigns a numeric value to a queue characteristic. The
/CHARACTERISTIC qualifier is required. If a value has been
assigned to the characteristic, you must delete and redefine
the characteristic to alter the assignment of the existing
characteristic.
Requires OPER (operator) privilege.
NOTE
You cannot define more than one characteristic name to a
number.
Format
DEFINE/CHARACTERISTIC characteristic-name characteristic-number
4.1 - Parameters
characteristic-name
Assigns a name to the characteristic being defined. The
characteristic name can be the name of an existing characteristic
or a string of 1 to 31 characters that defines a new
characteristic. The character string can include any uppercase
and lowercase letters, digits, the dollar sign ($), and the
underscore (_), and must include at least one alphabetic
character. Only one characteristic name can be defined to each
number.
characteristic-number
Assigns a number in the range 0 to 127 to the characteristic
being defined.
4.2 - Example
$ DEFINE/CHARACTERISTIC REDINK 3
The DEFINE/CHARACTERISTIC command in this example defines
the characteristic REDINK with the number 3. When a user
enters the command PRINT/CHARACTERISTICS=REDINK (or PRINT
/CHARACTERISTICS=3), the job is printed only if the printer
queue has been established with the REDINK or 3 characteristic.
5 - /FORM
Assigns a numeric value and attributes to a print form name. The
/FORM qualifier is required. To modify a form's name or number,
you must delete and redefine the form. Values for any DEFINE/FORM
qualifier can be modified by reentering the DEFINE/FORM command
with different values, as long as the form name and number remain
the same.
Requires OPER (operator) privilege.
Format
DEFINE/FORM form-name form-number
5.1 - Parameters
form-name
Assigns a name to the form being defined. The form name can
be the name of an existing form type or a string of 1 to 31
characters that defines a new form type. The character string can
include any uppercase and lowercase letters, digits, the dollar
sign ($), and the underscore (_), and must include at least one
alphabetic character.
form-number
Assigns a number in the range 0 to 9999 to the form being
defined. The DEFAULT form, which is defined automatically when
the system is bootstrapped, is assigned number zero.
5.2 - Qualifiers
5. 2.1 - /DESCRIPTION
/DESCRIPTION=string
A string of up to 255 characters used to provide operator
information about the form. The default string is the specified
form name.
The string can be used to define the form type more specifically.
For example, if you have form names such as LETTER1, LETTER2,
and LETTER3, the /DESCRIPTION qualifier could be used to let
the users and operators know that LETTER1 refers to the standard
corporate letterhead paper (8.5 inches x 11 inches), LETTER2
refers to the smaller corporate letterhead paper (6 inches x
9 inches), and LETTER3 refers to the president's personalized
letterhead paper.
Enclose strings containing lowercase letters, blanks, or other
nonalphanumeric characters (including spaces) in quotation marks
(" ").
5. 2.2 - /LENGTH
/LENGTH=n
Specifies the physical length of a form page in lines. The
default page length is 66 lines, which assumes a standard page
length of 11 inches with 6 lines of print per inch. The parameter
n must be a positive integer greater than zero and not more than
255.
The print symbiont sets the page length of the device equal to
the form length. This enables the driver to compute the number of
line feeds for devices lacking mechanical form feed.
5. 2.3 - /MARGIN
/MARGIN=(option[,...])
Specifies one or more of the four margin options: BOTTOM, LEFT,
RIGHT, and TOP.
BOTTOM=n Specifies the number of blank lines between the end
of the print image area and the end of the physical
page; the value of n must be between 0 and the value of
the /LENGTH qualifier. The default value is 6, which
generally means a 1-inch bottom margin.
LEFT=n Specifies the number of blank columns between the
leftmost printing position and the print image area;
the value of n must be between 0 and the value of the
/WIDTH qualifier. The default is 0, which means that
the print image area starts as far to the left of the
paper as the printer can go.
RIGHT=n Specifies the number of blank columns between the
/WIDTH qualifier and the image area; the value of
n must be between 0 and the value of the /WIDTH
qualifier. When determining the value of the RIGHT
option, start at the /WIDTH value and count to the
left. The default value is 0, which means that the
print image extends as far to the right as the /WIDTH
value.
TOP=n Specifies the number of blank lines between the top
of the physical page and the top of the print image;
the value of n must be between 0 and the value of
the /LENGTH qualifier. The default value is 0, which
generally means that there is no top margin.
5. 2.4 - /PAGE_SETUP
/PAGE_SETUP=(module[,...])
/NOPAGE_SETUP (default)
Specifies one or more modules that set up the device at the start
of each page. The modules are located in the device control
library. While the form is mounted, the system extracts the
specified module and copies it to the printer before each page
is printed.
5. 2.5 - /SETUP
/SETUP=(module[,...])
Specifies one or more modules that set up the device at the start
of each file. The modules are located in the device control
library. While the form is mounted, the system extracts the
specified module and copies it to the printer before each file
is printed.
For more information on device control modules, refer to the
chapter on Batch and Print Operations in the OpenVMS System
Manager's Manual.
5. 2.6 - /SHEET_FEED
/SHEET_FEED
/NOSHEET_FEED (default)
Specifies that print jobs pause at the end of every physical page
so that a new sheet of paper can be inserted.
5. 2.7 - /STOCK
/STOCK=string
Specifies the type of paper stock to be associated with the form.
The string parameter can be a string of 1 to 31 characters,
including the dollar sign, underscore, and all alphanumeric
characters. If you specify the /STOCK qualifier, you must specify
the name of the stock to be associated with the form. If you do
not specify the /STOCK qualifier, the name of the stock will be
the same as the name of the form.
You can create any string that you want; however, when you are
creating forms with the same stock, be sure that the /STOCK
string is identical in all the DEFINE/FORM commands that refer
to the same type of paper.
If you are defining a number of forms to provide different
formatting options, specify the same stock type for each form.
Jobs that request any of these forms will print on the same
queue. If you want to modify the stock string associated with
a form, you can do this only if the form is not referenced by any
job or queue.
5. 2.8 - /TRUNCATE
/TRUNCATE (default)
/NOTRUNCATE
Discards any characters that exceed the current line length
(specified by the /WIDTH and /MARGIN=RIGHT qualifiers). The
/TRUNCATE qualifier is incompatible with the /WRAP qualifier.
If you specify both the /NOTRUNCATE and /NOWRAP qualifiers, the
printer prints as many characters on a line as possible. This
combination of qualifiers is useful for some types of graphics
output.
5. 2.9 - /WIDTH
/WIDTH=n
Specifies the physical width of the paper in terms of columns or
character positions. The parameter n must be an integer from 0 to
65,535; the default value is 132.
Any lines exceeding this value wrap if the /WRAP qualifier is in
effect or are truncated if the /TRUNCATE qualifier is in effect.
(If both the /NOTRUNCATE and /NOWRAP qualifiers are in effect,
lines print as far as possible.)
The /MARGIN=RIGHT qualifier overrides the /WIDTH qualifier when
determining when to wrap lines of text.
5. 2.10 - /WRAP
/WRAP
/NOWRAP (default)
Causes lines that exceed the current line length (specified by
the /WIDTH and /MARGIN=RIGHT qualifiers) to wrap onto the next
line. The /WRAP qualifier is incompatible with the /TRUNCATE
qualifier. If you specify both the /NOWRAP and /NOTRUNCATE
qualifiers, the printer prints as many characters on a line as
possible. This combination of qualifiers is useful for some types
of graphics output.
5.3 - Example
$ DEFINE/FORM /MARGIN=(TOP=6,LEFT=10) CENTER 3
The DEFINE/FORM command in this example defines the form CENTER
to have a top margin of 6 and a left margin of 10. The defaults
remain in effect for both bottom margin (6) and right margin
(0). The form is assigned the number 3.
6 - /KEY
Associates an equivalence string and a set of attributes with a
key on the terminal keyboard.
Format
DEFINE/KEY key-name equivalence-string
6.1 - Parameters
key-name
Specifies the name of the key that you are defining. All
definable keys on VT52 terminals are located on the numeric
keypad. On VT100-series terminals, you can define the left and
right arrow keys as well as all the keys on the numeric keypad.
On terminals with LK201 keyboards, the following three types of
keys can be defined:
o Keys on the numeric keypad
o Keys on the editing keypad (except the up and down arrow keys)
o Keys on the function key row across the top of the keyboard
(except keys F1 to F5)
The following table lists the key names in column one. The
remaining three columns indicate the key designations on the
keyboards of the three different types of terminals that allow
key definitions.
Key Name LK201 VT100-Series VT52
PF1 PF1 PF1 [blue]
PF2 PF2 PF2 [red]
PF3 PF3 PF3 [gray]
PF4 PF4 PF4 - -
KP0, KP1, ..., KP9 0, 1, ..., 9 0, 1, ..., 9 0, 1, ..., 9
Period . . .
Comma , , n/a
Minus - - n/a
Enter Enter ENTER ENTER
Left < - < - < -
Right - > - > - >
Find (E1) Find - -
Insert Here (E2) Insert Here - -
Remove (E3) Remove - -
Select (E4) Select - -
Prev Screen (E5) Prev Screen - -
Next Screen (E6) Next Screen - -
Help Help - -
Do Do - -
F6, F7, ..., F20 F6, F7, ..., F20 - -
Some definable keys are enabled for definition all the time.
Others, including KP0 to KP9, Period, Comma, and Minus, must be
enabled for definition purposes. You must enter either the SET
TERMINAL/APPLICATION or the SET TERMINAL/NONUMERIC command before
using these keys.
On LK201 keyboards, you cannot define the up and down arrow keys
or function keys F1 to F5. The left and right arrow keys and the
F6 to F14 keys are reserved for command line editing. You must
enter the SET TERMINAL/NOLINE_EDITING command before defining
these keys. You can also press Ctrl/V to enable keys F7 to F14.
Note that Ctrl/V will not enable the F6 key.
equivalence-string
Specifies the character string to be processed when you press
the key. Enclose the string in quotation marks (" ") to preserve
spaces and lowercase characters.
6.2 - Qualifiers
6. 2.1 - /ECHO
/ECHO (default)
/NOECHO
Displays the equivalence string on your screen after the key
has been pressed. You cannot use the /NOECHO qualifier with the
/NOTERMINATE qualifier.
6. 2.2 - /ERASE
/ERASE
/NOERASE (default)
Determines whether the current line is erased before the key
translation is inserted.
6. 2.3 - /IF_STATE
/IF_STATE=(state-name,...)
/NOIF_STATE
Specifies a list of one or more states, one of which must be in
effect for the key definition to work. The /NOIF_STATE qualifier
has the same meaning as /IF_STATE=current_state. The state name
is an alphanumeric string. States are established with the /SET_
STATE qualifier or the SET KEY command. If you specify only one
state name, you can omit the parentheses. By including several
state names, you can define a key to have the same function in
all the specified states.
6. 2.4 - /LOCK_STATE
/LOCK_STATE
/NOLOCK_STATE (default)
Specifies that the state set by the /SET_STATE qualifier remain
in effect until explicitly changed. (By default, the /SET_STATE
qualifier is in effect only for the next definable key you press
or the next read-terminating character that you type.) This
qualifier can be specified only with the /SET_STATE qualifier.
6. 2.5 - /LOG
/LOG (default)
/NOLOG
Displays a message indicating that the key definition has been
successfully created.
6. 2.6 - /SET_STATE
/SET_STATE=state-name
/NOSET_STATE (default)
Causes the specified state-name to be set when the key is
pressed. (By default, the current locked state is reset when
the key is pressed.) If you have not included this qualifier with
a key definition, you can use the SET KEY command to change the
current state. The state name can be any alphanumeric string;
specify the state as a character string enclosed in quotation
marks.
6. 2.7 - /TERMINATE
/TERMINATE
/NOTERMINATE (default)
Specifies whether the current equivalence string is to be
processed immediately when the key is pressed (equivalent to
entering the string and pressing Return). By default, you can
press other keys before the definition is processed. This allows
you to create key definitions that insert text into command
lines, after prompts, or into other text that you are entering.
6.3 - Examples
1.$ DEFINE/KEY PF3 "SHOW TIME" /TERMINATE
%DCL-I-DEFKEY, DEFAULT key PF3 has been defined
$ <PF3>
$ SHOW TIME
14-DEC-2001 14:43:59
In this example, the DEFINE/KEY command defines the PF3 key on
the keypad to perform the SHOW TIME command. DEFAULT refers to
the default state.
2.$ DEFINE/KEY PF1 "SHOW " /SET_STATE=GOLD/NOTERMINATE/ECHO
%DCL-I-DEFKEY, DEFAULT key PF1 has been defined
$ DEFINE/KEY PF1 " DEFAULT" /TERMINATE/IF_STATE=GOLD/ECHO
%DCL-I-DEFKEY, GOLD key PF1 has been defined
$ <PF1>
$ <PF1>
$ SHOW DEFAULT
DISK1:[JOHN.TEST]
In this example, the first DEFINE/KEY command defines the PF1
key to be the string SHOW. The state is set to GOLD for the
subsequent key. The /NOTERMINATE qualifier instructs the system
not to process the string when the key is pressed. The second
DEFINE/KEY command defines the use of the PF1 key when the
keypad is in the GOLD state. When the keypad is in the GOLD
state, pressing PF1 causes the current read to be terminated.
If you press the PF1 key twice, the system displays and
processes the SHOW DEFAULT command.
The word DEFAULT in the second line of the example indicates
that the PF1 key has been defined in the default state. Note
the space before the word DEFAULT in the second DEFINE/KEY
command. If the space is omitted, the system fails to recognize
DEFAULT as the keyword for the SHOW command.
3.$ SET KEY/STATE=ONE
%DCL-I-SETKEY, keypad state has been set to ONE
$ DEFINE/KEY PF1 "ONE"
%DCL-I-DEFKEY, ONE key PF1 has been defined
$ DEFINE/KEY/IF_STATE=ONE PF1 "ONE"
%DCL-I-DEFKEY, ONE key PF1 has been defined
This example shows two ways to define the PF1 key to be "ONE"
for state ONE.
The second DEFINE/KEY command shows the preferred method for
defining keys. This method eliminates the possibility of
error by specifying the state in the same command as the key
definition.
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