Statement syntax

From m204wiki
Jump to navigation Jump to search

Overview

This chapter summarizes User Language syntax and conventions, many of which are also discussed throughout this manual.

The statements are listed in alphabetical order. Later sections in this chapter provide other User Language syntax information.

All of the User Language statements listed can be used between a BEGIN (or MORE) command and an END (or END MORE) statement.

All system control commands are presented in the Rocket Model 204 Parameter and Command Reference Manual.

Notation conventions

This page uses the following syntax notation conventions:

Syntax notation Indicates that...
Single asterisk (*) Statements can be preceded by an IN clause, if there is no reference to a previous set (label or list). See IN clause syntax for more discussion.
Two asterisks (**) Construct can appear only within a record loop.
Plus sign (+) Construct requires the optional Horizon feature.
Two plus signs (++) Construct requires the optional User Language to Database 2 feature.
C

The syntax applies to a Model 204 command as well as a User Language statement, except any %variable options or clauses.

Model 204 commands are listed alphabetically and documented in Rocket Model 204 Parameter and Command Reference Manual.
Lower case italic Constructs are replaced with variable information.
  • A field name (%%) variable can be used anywhere fieldname appears. The %%variable can contain its own subscript, separate from the field name subscript.

Note

The subscript of an array element must be specified before a field name subscript.

  • The lower case constructs--retrieval-conditions, print-specifications, expression, subscript, attribute, and type--are discussed separately following the syntax summaries, beginning with Value specification syntax.

User Language statements

_______________________________________________________________

** ADD fieldname = {value | (expression)} ADD lob-name=BUFFER,position,length [RESERVE n [BYTES]]

_______________________________________________________________

ARRAY [arrayname] OCCURS {n | UNKNOWN} DEPENDING ON {itemname | %variable} [AFTER {itemname | arrayname} | AT {position | itemname | imagename1 | arrayname}]

_______________________________________________________________

AUDIT print-specifications

_______________________________________________________________

AUDIT ALL FIELDGROUP INFORMATION [CTOFIELDS]

_______________________________________________________________

AUDIT ALL INFORMATION AAI

_______________________________________________________________

C BACKOUT

_______________________________________________________________

BYPASS [PENDING STATEMENT]

_______________________________________________________________

CALL {label | subname [([expression | %variable | [LIST] listname] [,...])]}

_______________________________________________________________

** CHANGE fieldname [(subscript)] [= value1 |(expression)] TO (value2 | (expression)) CHANGE lob-fieldname,position1,length TO BUFFER,position2,length [RESERVE n [BYTES]]

_______________________________________________________________

CLEAR {[[ALL | TEMP | LISTFDST | POSITION] [GLOBAL]] OBJECTS | GLOBALS | GLOBAL {IMAGE | SCREEN | MENU | LIST | FOUNDSET | POSITION [PERM | TEMP]} {'objectname' | %variable}}

____________________________________________________

* CLEAR LIST listname

____________________________________________________

CLEAR ON {ATTENTION | ERROR | FIELD CONSTRAINT CONFLICT | FIND CONFLICT | RECORD LOCKING CONFLICT | MISSING FILE | MISSING MEMBER}

____________________________________________________

CLEAR TAG {screenname | %screenname:inputname}

____________________________________________________

CLOSE {DATASET {ext-filename | %variable} | [EXTERNAL] {ext-filename | TERMINAL | %variable}}

____________________________________________________

+ C CLOSE PROCESS {cid | processname | %variable} [SYNCLEVEL | FLUSH | %variable]

____________________________________________________

CLOSE PROCESS {cid | processname | %variable} [SYNCLEVEL | CONFIRM | FLUSH | ERROR | %variable]

____________________________________________________

COMMIT [RELEASE]

____________________________________________________

+ CONFIRM {cid | processname | %variable} REQSEND %variable

____________________________________________________

+ CONFIRMED {cid | processname | %variable}

____________________________________________________

CONTINUE

____________________________________________________

** COUNT OCCURRENCES OF fieldname

____________________________________________________

COUNT RECORDS {IN label | ON [LIST] listname}

____________________________________________________

[DECLARE] declaration

where declaration is one of the following:

LABEL labelname [GLOBAL | COMMON] LIST listname [IN [FILE | [PERM | TEMP] GROUP]] name] [GLOBAL | COMMON] IMAGE imagename [AT {itemname | imagename1 | arrayname} | GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON] MENU menuname [GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON] SCREEN screenname [GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON] %variable [IS] {FIXED [DP n] | FLOAT} [ARRAY (d1 [,d2 [,d3]])] [INITIAL(numeric-expression)] [STATIC] [COMMON] %variable [IS] STRING [LEN n] [DP {n | *}] [ARRAY (d1 [,d2[,d3]])] [NO FIELD SAVE] [COMMON] [INITIAL('EBCDIC-string' | expression)] [STATIC] SUBROUTINE subname [(type [INPUT | OUTPUT | INPUT OUTPUT] [,...])]

type is one of the following:

  • Scalar %variable of the following format:

    {STRING [LEN] n [DP {n | *}] | [FIXED [DP n] | FLOAT]}

  • Array %variable of the following format:

    {STRING [LEN n] [DP [n | *}] [ARRAY (* [,*[,*]]) [NO FIELD SAVE]] | [FIXED [DP n] | FLOAT] [ARRAY (* [,*[,*]])]}

  • A list of records of the following format:

    [LIST] [IN {FILE | [PERM | TEMP] GROUP} name]

____________________________________________________

DEFAULT CURSOR [READ | REREAD | PRINT] {ITEMID n | itemname | ROW n COLUMN m}

____________________________________________________

DEFAULT {TITLE | PROMPT | INPUT [DEBLANK | NODEBLANK] [PAD WITH 'c'] [LEN m [DP [k | *}]] [UPCASE | NOCASE] | [TAG [attributes] [WITH 'c']} [[READ] attributes] [REREAD attributes] [PRINT attributes]

____________________________________________________

DEFAULT SKIP n POSITIONS[S] [INITIAL {NULL | character | BLANK}]

____________________________________________________

DEFAULT [TYPE] {STRING | BINARY | PACKED | ZONED | FLOAT | EFORMAT} {LEN {n | UNKNOWN} | BITS n | DIGITS n} [DP {k | *}] [BP n] [SIGNED | UNSIGNED] [PAD {BLANK | character | NULL}] [STRIP | NOSTRIP] [JUSTIFY {LEFT | RIGHT}] [INITIAL {BLANK | ZERO | NULL | literal}]

____________________________________________________

** DELETE fieldname [(subscript)] [= value |(expression)]

____________________________________________________

** DELETE EACH fieldname

____________________________________________________

** DELETE RECORD

____________________________________________________

DELETE [ALL] RECORDS {IN label | ON [LIST] listname}

___________________________________________________

END BLOCK label

____________________________________________________

END {FIND | IF | FOR | ON | REPEAT | STORE | SUBROUTINE} [label]

____________________________________________________

END {ARRAY | IMAGE | MENU | SCREEN}

____________________________________________________

END [MORE | NORUN | USE]...

____________________________________________________

END UPDATE

____________________________________________________

FILE RECORDS {IN label | ON [LIST] listname} UNDER fieldname = {value | (expression)}

____________________________________________________

* FIND [AND RESERVE] [ALL] RECORDS [IN label | ON [LIST] listname] [FOR WHICH | WITH] retrieval-conditions

____________________________________________________

* FIND [ALL] VALUES OF fieldname [FROM {value1|(expression1)}] [TO {value2|(expression2)}] [[NOT] LIKE 'pattern']

____________________________________________________

* FIND AND PRINT COUNT [retrieval-conditions]

____________________________________________________

* {FIND WITHOUT LOCKS | FDWOL} [ALL] RECORDS [IN label | ON [LIST] listname] [FOR WHICH | WITH] retrieval-conditions

____________________________________________________

FLUSH PROCESS {cid | processname | %variable}

____________________________________________________

** FOR {EACH | k} {OCCURRENCE | OCCURRENCES} OF fieldname

____________________________________________________

* FOR {EACH | k} {RECORD | RECORDS} [IN label | ON [LIST] listname] IN [ASCENDING | DESCENDING] [SORTKEY] ORDER [BY [EACH] fieldname] [FROM {value1|(expression1)}] [TO {value2|(expression2)}] [BY {%variable | literal}] [OPTIMIZING FNV] [{WHERE | WITH} retrieval-conditions]

____________________________________________________

* FOR {EACH | k} {VALUE | VALUES} OF fieldname [FROM {value1|(expression1)}] [TO {value2|(expression2)}] [[NOT] LIKE pattern] [IN [ASCENDING | DESCENDING] [CHARACTER | NUMERICAL] [RIGHT-ADJUSTED] ORDER]

____________________________________________________

FOR {EACH | k} {VALUE | VALUES} IN label

____________________________________________________

* FOR RECORD NUMBER {value | (expression)}

____________________________________________________

FOR RECORD NUMBER {value | IN label} [OPTIMIZING FNV]

____________________________________________________

FOR %variable FROM expression1 {TO expression2 [BY expression3] | [BY expression3] TO expression2}

Note: The BY clause, when omitted, defaults to a value of 1.

____________________________________________________

IDENTIFY {[IMAGE] imagename | %imagename:itemname LEN {n | %variable} | %imagename:arrayname OCCURS {n | %variable}}

____________________________________________________

C IF expression THEN statements [ELSE statements | ELSEIF expression THEN statements]

____________________________________________________

[DECLARE] IMAGE imagename [GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON [AT [itemname | imagename1 |arrayname}]]

____________________________________________________

* INCLUDE procedurename

____________________________________________________

INPUT inputname [AT [COLUMN] n] [TO [COLUMN] m | [LEN m] DP {k | *}]] [UPCASE | NOCASE] [DEFAULT 'value'] [DEBLANK | NODEBLANK] [PAD WITH 'c'] [REQUIRED | ALPHA | ALPHANUM | MUSTFILL | ONEOF literal [,literal]... | [NUMERIC] [RANGE lo [TO] hi [AND lo [TO] hi] ...] | VERIFY 'characters']... [[READ] attributes] [REREAD attributes] [PRINT attributes] {TAG [attributes] [WITH 'c']] [ITEMID n]

____________________________________________________

INSERT fieldname [(subscript)] = {value | (expression)}

____________________________________________________

+ INVITE {cid | processname | %variable} [SYNCLEVEL | FLUSH | CONFIRM]

____________________________________________________

itemname IS [TYPE] {STRING | BINARY | PACKED | ZONED | FLOAT | EFORMAT} {LEN {n | UNKNOWN} | BITS n | DIGITS n | TO position} [DP {k | *}] [BP n] [SIGNED | UNSIGNED] [PAD {BLANK | character | NULL}] [STRIP | NOSTRIP] [ALIGN] [JUSTIFY {LEFT | RIGHT}] [INITIAL {BLANK | ZERO | NULL | value}] [AFTER {itemname | arrayname} | AT {position | itemname | imagename1 | arrayname}] [OCCURS {n [DEPENDING ON {itemname | %variable}] | UNKNOWN}]

____________________________________________________

JUMP TO label

___________________________________________________

JUMP TO (label1 [,label2] ...) expression

___________________________________________________

LOOP END

____________________________________________________

MAX PFKEY n

____________________________________________________

[DECLARE] MENU menuname [GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON]

____________________________________________________

MODIFY {%menuname:itemname | %screenname:itemname} [TO] attributes [[FOR] {ALL | READ | REREAD | TAB | PRINT}]

____________________________________________________

MODIFY BUFFER [SIZE=n | %variable [PRESERVE | NOPRESERVE]] [FILL [X'nn'] | CLEAR]

____________________________________________________

C NEW PAGE

____________________________________________________

** NOTE {fieldname [(subscript)]}

____________________________________________________

NOTE 'string'

____________________________________________________

ON {ATTENTION | ERROR | FIELD CONSTRAINT CONFLICT | FIND CONFLICT | MISSING FILE | MISSING MEMBER | RECORD LOCKING CONFLICT} statements

____________________________________________________

OPEN {[DATASET | EXTERNAL] {ext-filename | %variable} | [EXTERNAL] {TERMINAL | %variable}} FOR {INPUT [OUTPUT] | OUTPUT [INPUT] | INOUT} [PASSWORD {value | %variable}]

____________________________________________________

C OPEN [C] [[PERM | TEMP] GROUP | FILE] {name [AT {location | %variable | =}] |%variable} [PASSWORD {value | %variable}]

____________________________________________________

OPEN PROCESS {processname | %variable} [CID {name | %variable}]

____________________________________________________

+ OPEN PROCESS {processname | %variable} [CID {name | %variable}] {outbound options | inbound options}

where outbound options are:

[AT DESTINATION] [WITH] [USERID {%variable | 'string'}] [PASSWORD {%variable | 'string'}] [{ACCOUNT | PROFILE {%variable | 'string'}] [INITIAL {DATA 'string' | DATA %variable | IMAGE imagename] ...]

and inbound options are:

ACCEPT [INITIAL {DATA %variable | IMAGE image} ...]

____________________________________________________

PAUSE [n | %variable]

____________________________________________________

** PLACE RECORD ON [LIST] listname

____________________________________________________

PLACE RECORDS {IN label | ON [LIST] listname1} ON [LIST] listname2

____________________________________________________

POSITION {FOUNDSET foundsortset_name | LIST list_name} [AT] position_name

Note: Use this form of the POSITION statement with FOR loop processing; see POSITION statement.

____________________________________________________

POSITION {ext-filename | %variable} AT KEY operator {value | %variable}

Note: Use this form of the POSITION statement with external file processing using images; see POSITION statement.

____________________________________________________

PREPARE {[IMAGE] imagename | [MENU] menuname | [SCREEN] screenname}

____________________________________________________

PRINT print specifications

_______________________________________________________________


** {PAI | PRINT ALL INFORMATION} INTO array1, array2 [,array3] [FROM start] [COUNT ct]

_______________________________________________________________

PRINT [MENU] menuname [ALERT] [TITLE {'text' | %variable} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [attributes]]

____________________________________________________

PRINT SCREEN screenname [ALERT] [[WITH] CURSOR] [TITLE {'text' | %variable} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [attributes]]

____________________________________________________

PROMPT {'text' | promptname} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [DP {k | *}]] [DEFAULT 'value'] [[READ] attributes] [REREAD attributes] [PRINT attributes] [ITEMID n]

____________________________________________________

+ QUERY PROCESS {cid | processname | %variable} options

where options must be one or more of the following:

STATE %variable PROCESSGROUP %variable REMOTEID %variable SYNCLEVEL %variable MODENAME %variable

____________________________________________________

READ [IMAGE] imagename FROM {ext-filename | TERMINAL | %variable} [PROMPT {'text' | %variable}] [NEXT | KEY operator {value | %variable}]

____________________________________________________

READ [IMAGE] imagename FROM BUFFER [POSITION={%pvariable | n}] [MAXLEN={%lvariable | n}]

____________________________________________________

READ [MENU] menuname [ALERT] [TITLE ['text' | %variable} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [attributes]]

____________________________________________________

READ [SCREEN] screenname [ALERT] [NO REREAD] [ [WITH] CURSOR] [TITLE {'text' | %variable} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [attributes]]

____________________________________________________

RECEIVE {IMAGE imagename | %variable} FROM {cid | processname | %variable} [RESULT %variable]

____________________________________________________

+ RECEIVE {IMAGE imagename | %variable} FROM {cid | processname | %variable} RESULT %variable

____________________________________________________

RELEASE ALL RECORDS

____________________________________________________

RELEASE POSITION {ext-filename | %variable}

____________________________________________________

RELEASE RECORDS {IN label | ON [LIST] listname}

____________________________________________________

** REMEMBER [GLOBAL] position_name [IN foundsortset_name | ON list_name]

____________________________________________________

** REMOVE RECORD FROM [LIST] listname

____________________________________________________

REMOVE RECORDS {IN label | ON [LIST] listname} FROM [LIST] listname2

____________________________________________________

REPEAT [FOREVER | n TIMES | WHILE expression]

___________________________________________________

REREAD [SCREEN] screenname [ALERT] [[WITH] CURSOR] [TITLE {'text' | %variable} [AT [COLUMN] n] [TO [COLUMN] m | LEN m] [attributes]]

____________________________________________________

RESET {HEADER | TRAILER} m

____________________________________________________

RETRY [PENDING STATEMENT]

____________________________________________________

RETURN

____________________________________________________

[DECLARE] SCREEN screenname [GLOBAL [PERMANENT | TEMPORARY] | [PERMANENT | TEMPORARY] GLOBAL | COMMON]

____________________________________________________

SEND {IMAGE imagename | 'string' | %variable} TO {cid | processname | %variable} [REQSEND %variable] [FLUSH]

____________________________________________________

+ SEND {IMAGE imagename | 'string' | %variable} TO {cid | processname | %variable} [FLUSH | CONFIRM] [REQSEND %variable]

____________________________________________________

+ SEND ERROR TO {cid | processname | %variable} REQSEND %variable

____________________________________________________

SET {HEADER | TRAILER} m print-specifications

____________________________________________________

SIGNAL PROCESS {cid | [processname | %variable} {nnn | %variable}

_______________________________________________________________

+ SIGNAL PROCESS {cid | [processname | %variable}

____________________________________________________

SKIP n LINE[S]

____________________________________________________

[itemname IS] SKIP n POSITION[S] [INITIAL {NULL | character | BLANK}]

____________________________________________________

SORT [k] RECORDS {IN label | ON [LIST] listname} BY key [AND key] ...

where:

key = fieldname [VALUE {[ASCENDING | DESCENDING] [CHARACTER | NUMERICAL] | RIGHT-ADJUSTED]} ...]

____________________________________________________

SORT [k] RECORD KEYS {IN label | ON [LIST] listname} BY key [AND key] ...

where:

key = fieldname [VALUE {[ASCENDING | DESCENDING] [CHARACTER | NUMERICAL] | [RIGHT-ADJUSTED]} ...]

____________________________________________________

SORT VALUE IN label [IN [ASCENDING | DESCENDING] [CHARACTER | NUMERICAL] | [RIGHT-ADJUSTED] ORDER]

____________________________________________________

STOP [IF COUNT IN label EXCEEDS n]

__________________________________________________

* STORE RECORD [sort or hash key value] fieldname1=[value1 | (expression1)] [fieldname2=(expression)] ... [THEN CONTINUE statement statement ...] END STORE

____________________________________________________

SUBROUTINE

____________________________________________________

SUBROUTINE subname [(formal-parameter [INPUT | OUTPUT | INPUT OUTPUT] [,...])]

where formal parameter is one of the following:

%variable [IS STRING [LEN n] [DP {n | *}] [ARRAY (*[,*[,*]]) [NO FS]] | IS {FIXED [DP n] | FLOAT} [ARRAY (*[,*[,*]])]] LIST listname [IN [FILE | [PERM | TEMP] GROUP] name]

____________________________________________________

TAG %screenname:inputname [attributes] [WITH 'c']

____________________________________________________

+ TEST [FOR] {ANY RECEIPT RETURN %variable | RECEIPT {cid | processname | %variable}}

____________________________________________________

TITLE {'text' | promptname} [AT [COLUMN] n] [TO [COLUMN] m | [LEN m] [DP {k | *}]] [DEFAULT 'value'] [[READ] attributes] [REREAD attributes] [PRINT attributes]

____________________________________________________

TRANSFER [CONTROL] TO PROCESS {processname | %variable} [WITH] [USERID {%variable | 'string'}] [PASSWORD {variable | 'string'}] [ACCOUNT {%variable | 'string'}] [PASSING {IMAGE imagename | 'string' | %variable}]

____________________________________________________

UPDATE RECORD

____________________________________________________

VARIABLES ARE {FIXED [DP n] | FLOAT | STRING [LEN n] [DP {n | *}] | UNDEFINED}

____________________________________________________

[DECLARE] %variable [IS] {FIXED [DP n] | FLOAT} [ARRAY (d1[,d2[,d3]])] [COMMON]

____________________________________________________

[DECLARE] %variable [IS] STRING [LEN n] [DP {n | *}] [ARRAY (d1[,d2[d3]])] [NO FIELD SAVE] [COMMON] %variable [(subscript)] = expression

____________________________________________________

+ WAIT [{n | %variable} SEC[S]] [FOR] {ANY RECEIPT RETURN %variable | RECEIPT {cid | processname | %variable}}

____________________________________________________

WRITE [IMAGE] imagename ON {seq-filename | TERMINAL | %variable}

____________________________________________________

WRITE IMAGE imagename ON BUFFER [POSITION=%pvariable | n] [MAXLEN={%lvariable | n}]

____________________________________________________

Value specification syntax

For all User Language statements and retrieval conditions, wherever the term value appears in the syntax, it can be:

  • Literal number or string
  • VALUE IN clause of the form:

VALUE [IN] label

  • %variable

Retrieval condition syntax

A FIND statement can be followed by any number of retrieval conditions separated by an end of line or LINEND parameter character.

Conditions can be constructed as follows:

Syntax

[NOT] phrase [{AND | OR | NOR} [NOT] phrase] ...

Where

phrase can be constructed as follows:

fieldname = [NOT] value fieldname LIKE pattern fieldname IS [NOT] {PRESENT | LIKE 'pattern'} fieldname IS [NOT] {[NUMERICALLY | ALPHABETICALLY] [EQ | = | NE | ¬= | GREATER THAN | GT | > | LESS THAN | LT < | <= | GE | >= | BEFORE | AFTER] value} fieldname IS [NOT] {[NUMERICALLY | ALPHABETICALLY] {IN RANGE [FROM | AFTER] value1 {TO | [AND] BEFORE} value2 | BETWEEN value1 AND value2} FILES filename FIND$ label LISTS$ listname LOCATION {location | =} POINT$ value SFGE$ value SFL$ value

where value can be:

Literal number or string

VALUE {[IN] label} | (expression)

%variable

Notes:

  • The first character (¬) of the inequality test above is the EBCDIC "not sign", which has the hexadecimal value 5f.
  • For a description of the pattern in the [IS] LIKE and IS NOT clauses, see the syntax of Is Like patterns.

Omitting repeated first words

Moreover, if a sequence of phrases in a particular retrieval condition all have the same first word, that word can be omitted from the latter phrases. For example:

LIST$ A AND NOT LIST$ B

can be written:

LIST$ A AND NOT B

And:

X IS 13 OR X IS LESS THAN 7

can be written:

X IS 13 OR IS LESS THAN 7

Omitting duplicated equal signs

Duplicated equal signs can be omitted. For example, the expression:

A = 3 OR A = 5 OR A = 40

is equivalent to:

A = 3 OR 5 OR 40

Use of parentheses

Parentheses can be placed around any sequence of phrases to clarify the condition or force the evaluation to occur in a particular order. For example:

NOT (A = 2 OR LIST$ Y) A = 1 AND (B = 2 OR C = 3)

Use of expressions

Expressions can be used in FIND statements to provide the retrieval condition for the POINT$, SFL$, and SFGE$ conditions, as well as for the EQ VALUE clause.

POINT$ Syntax

POINT$ VALUE(expression)

Where

expression is a function call, string concatenation, arithmetic operation, User Language construct, or Boolean expression. It is preceded by the keyword VALUE.

Example

This example finds the first MA record on file, and then counts the number of records from this point in the file:

FD1: IN ICSCUST FPC STATE = MA END FIND FOR 1 RECORD IN FD1 PRINT 'CURREC = ' WITH $CURREC PRINT '>= POINT$' FD2: IN ICSCUST FPC POINT$ VALUE($CURREC) END FIND END FOR

SFL$ and SFGE$ Syntax

SFL$ VALUE(expression)

or

SFGE$ VALUE(expression)

Where

expression is a function call, string concatenation, arithmetic operation, User Language construct, or Boolean expression. It is preceded by the keyword VALUE.

Example

FOR %CT FROM 1 TO 10 IN EXPRESS STORE RECORD ($EDITN(%CT,'999')) ORD1 = (%REC WITH %CT) ORD2 = (%CT * 2) ORD4 = (%CT * 4) END STORE END FOR COMMIT FOR %CT FROM 1 TO 5 PRINT 'LESS THAN ' WITH %CT FD1: IN EXPRESS FPC SFL$ VALUE($EDITN(%CT,'999')) END FIND PRINT 'GREATER THAN OR EQUAL TO ' WITH %CT FD2: IN EXPRESS FPC SFGE$ VALUE($EDITN(%CT,'999')) END FIND END FOR

EQ VALUE Syntax

fieldname EQ VALUE(expression)

Where

expression is a function call, string concatenation, arithmetic operation, User Language construct, or Boolean expression.

Example

FD: IN FILE PEOPLE FD LAST EQ VALUE($READ('LAST NAME?') ) END FIND

 

Print specification syntax

A PRINT, SET or AUDIT statement contains print specifications of the following form:

Syntax

[term] {AND | TAB | WITH]...[[term] [AND | TAB | WITH] ...] ... [...]

Where

term can be constructed as follows:

{'string' | %variable | COUNT IN label | OCCURRENCE IN label | VALUE IN label | function} [AT [COLUMN] m] [TO [COLUMN] n]

or, if the statement is within a record loop:

{{EACH | n} fieldname | *RECORD | *ID} [AT [COLUMN] m] [TO [COLUMN] n}

Expression syntax

The following syntax can be used in:

  • Assignment statements
  • Conditional IF statements and ELSEIF clauses

In the simplified syntax for an IF statement, which is:

IF condition THEN statements

condition expands to the syntax described in this section. Be sure to enclose an expression with parentheses.

  • Computed JUMP TO statements
  • Subscripts
  • Function arguments

Syntax

{operand |(expression)} [operator {operand | (expression)}] ...

Where

operand can be constructed as follows:

[+ | - | NOT] {'string' | %variable | number | fieldname [(subscript)] IS [NOT] PRESENT | COUNT IN label | OCCURRENCE IN label | VALUE IN label | function}

and operator may be one of the following:

+ = EQ AND
- ¬= NE OR
* > GT WITH
/ < LT IS PRESENT
  >= GE IS NOT PRESENT
  <= LE IS LIKE
      IS NOT LIKE

 

Notes:

  • The first character (¬) of the inequality test above is the EBCDIC "not sign", which has the hexadecimal value 5f.
  • For a description of the IS LIKE and IS NOT clauses, see the syntax of Is Like patterns.

IN clause syntax

Statements preceded by an asterisk (*), beginning with User Language statements, support the IN clause.

The three basic forms of the IN clause are:

Syntax

  • IN [PERMANENT | TEMPORARY ] GROUP groupname MEMBER [%member | [filename [AT {location | =}]]
  • IN file1 [,file2] ...
  • IN {$CURFILE | $UPDATE}

    • The form IN $CURFILE can be used only within a record loop.

IN GROUP MEMBER limitations

In addition to the three basic forms of the IN clause shown above the IN GROUP MEMBER clause restricts the following statements to one member file in a group context:

  • CLEAR LIST
  • FIND ALL RECORDS (and its variants)
  • FIND ALL VALUES
  • FOR RECORD NUMBER (or FRN)
  • STORE RECORD

You cannot use an IN GROUP MEMBER clause with a FOR EACH RECORD statement or with an ADD, CHANGE, or DELETE RECORD statement. Only the previously listed statements call accept an IN GROUP MEMBER clause.

Using an IN clause in a BEGIN...END block

The file name in the IN clause used within a BEGIN...END block is resolved by the compiler. You can either hard code a file name or use some type of dummy string for the file name. The use of a %variable for the file name is not allowed.

Subscript syntax

A subscript has the format:

Syntax

(subscript1 [,subscript2 [,subscript3]] )

Where

subscript1, subscript2, and subscript3 can be any expression.

Terminal display attributes

One or more of the following terminal display attributes can replace the term attribute in a full-screen formatting statement, if the display attribute is supported by the installation:

List of attributes

BLINK
BLUE
BRIGHT
DIM
GREEN
INV[IS[BLE]]
NOBLINK
NOREV[ERSE]
NOU[NDER]SCORE
PINK
PROT[ECTED]
RED
REV[ERSE]
TURQUOISE
[UNDER]SCORE
UNPROT[ECTED]
VIS[IBLE]
WHITE
YELLOW

Type syntax for the DECLARE SUBROUTINE statement

The type specification for the DECLARE SUBROUTINE statement has one of the following formats:

{STRING [LEN n] [DP {n | *}] [ARRAY (*[,*[,*]]) [NO FILE SAVE]] | FIXED [DP n] [ARRAY (*[,*[,*]])] | FLOAT}

or

[LIST] [IN [FILE | [PERM | TEMP] GROUP] name]

Retrieved from "https://m204wiki.rocketsoftware.com/index.php?title=Statement_syntax&oldid=61995"