ACUCOBOL-GT contains many extensions to the ANSI standard. These are summarized below:
Terminal-oriented source format.
Compile-time modification of source by Identification Area flags.
IS RESIDENT PROGRAM clause.
An index item may subscript a table other than the one it is associated with.
Index data items may be used any place a numeric data item is allowed.
Apostrophes may be used to delimit nonnumeric literals. Hexadecimal literals
are allowed.
A procedure name may be the same as a data item name.
The word ALPHABET is optional when you are declaring an alphabet-name in the
SPECIAL-NAMES paragraph.
The ASSIGN TO clause may have a data item specified for the external file
name. Also, the external file name is optional in the clause.
An optional device type may be specified in an ASSIGN clause.
WITH COMPRESSION, WITH ENCRYPTION added to ASSIGN clause.
LINE and BINARY options in ORGANIZATION clause.
COMPRESSION CONTROL clause.
LOCK MODE clause.
COLLATING SEQUENCE clause.
RESERVE clause with the NO or ALTERNATE options.
Split key specification for indexed files.
FILE STATUS clause for sort files.
Additional SPECIAL-NAMES clauses: CONSOLE IS CRT, CRT STATUS, CURSOR IS, EVENT
STATUS, and NUMERIC SIGN SEPARATE.
SEGMENT-LIMIT clause (level 2 segmentation feature).
VALUE OF FILE-ID clause.
USAGE COMP-1, COMP-2, COMP-3, COMP-4, COMP-5, COMP-6, COMP-N, COMP-X, FLOAT,
DOUBLE, and HANDLE.
USAGE types:
SIGNED-SHORT
SIGNED-INT
SIGNED-LONG
UNSIGNED-SHORT
UNSIGNED-INT
UNSIGNED-LONG
Tables may contain up to 15 dimensions.
A PICTURE string may contain up to 100 characters.
Level 78 constant names.
WHEN SET TO FALSE phrase for level 88 condition-names. A FALSE phrase added
to the SET statement.
SCREEN SECTION.
SCREEN SECTION BEFORE, AFTER, and EXCEPTION embedded procedures.
SCREEN SECTION EVENT procedures.
IS SPECIAL-NAMES phrase in record description entry.
CHAINING phrase added to Procedure Division header.
Non-display data items may be specified in a NUMERIC class condition.
USE statements may reference sort files.
RETURN-CODE special register.
ACCEPT with screen control.
ACCEPT FROM SYSTEM-INFO, TERMINAL-INFO, INPUT STATUS, LINE NUMBER,
COMMAND-LINE, ESCAPE KEY, CENTURY-DATE, CENTURY-DAY, STANDARD OBJECT, and WINDOW HANDLE.
ACCEPT FROM SCREEN.
ACCEPT CONTROL statement.
ACCEPT ALLOWING messages phrase.
ACCEPT external-form-item statement.
ADD TABLE statement.
CALL RUN statement.
CALL PROGRAM statement.
CALL THREAD statement.
Literals allowed in the USING portion of a CALL statement. Also, non-level 01
group items may be listed in the USING phrase.
BY VALUE phrase for CALL statement.
OMITTED/NULL phrase for CALL statement.
NOT ON OVERFLOW accepted for CALL statement.
ALL option for CANCEL statement.
CHART option for CANCEL statement.
CHAIN statement.
CLOSE WINDOW statement.
COMMIT statement.
DELETE FILE statement.
DESTROY statement.
DISPLAY with screen control.
DISPLAY SUBWINDOW/WINDOW statement.
DISPLAY FLOATING WINDOW statement.
DISPLAY SCREEN statement.
DISPLAY LINE statement.
DISPLAY BOX statement.
DISPLAY UPON WINDOW TITLE statement.
DISPLAY UPON COMMAND-LINE statement.
DISPLAY INITIAL WINDOW statement.
DISPLAY INDEPENDENT WINDOW statement.
DISPLAY TOOL-BAR statement.
DISPLAY control-type statement.
DISPLAY MESSAGE BOX statement.
DISPLAY external-form-item statement.
DRAW CHART statement.
ENTER CHART DATA statement.
GOBACK statement.
INQUIRE CONTROL statement.
INQUIRE WINDOW statement.
INITIATE CHART statement.
LOCK THREAD statement.
LABEL CHART statement.
TRAILING option on INSPECT statement.
MODIFY statement.
WITH LOCK and ALLOWING phrases added to OPEN statement.
MASS-UPDATE option on OPEN statement.
WITH NO LOCK and ALLOWING phrases on READ statement.
PERFORM THREAD statement.
PREVIOUS option on READ statement.
Literal allowed in FROM phrase of REWRITE and WRITE statements.
SEND message statement.
RECEIVE message statement.
SET CHART ATTRIBUTE statement.
SET FILE-PREFIX statement.
SET ENVIRONMENT statement.
SET EXCEPTION statement.
SET TO ADDRESS OF statement.
SET TO SIZE OF statement.
SET HANDLE statement.
SET THREAD statement.
SET WINDOW statement.
STOP THREAD statement.
SUBTRACT TABLE statement.
LESS THAN and LESS THAN OR EQUAL options on START statement.
UNLOCK statement.
DECLARATIVE procedures may reference procedures outside of DECLARATIVES.
Recursive CALLs
Dynamically determined SORT keys.
EXIT PERFORM, EXIT PARAGRAPH and EXIT SECTION.
ROLLBACK clause for LOCK MODE phrase, on SELECT statement in FILE-CONTROL
paragraph.
COMMIT statement may indicate end of transaction and cause changes to be
written to transaction log file.
ROLLBACK statement.
SET statement with ADDRESS OF clause sets address of linkage data item to
specified value.
START TRANSACTION statement.
UNLOCK THREAD statement.
WAIT statement.