INTOUCH^® 4GL
A Guide to the INTOUCH Language

Chapter 10
10	Defining Arrays
10.1	Dimensioning Arrays
10.1.1	DIM
10.1.2	REDIM
10.1.3	OPTION BASE
Chapter 11
11	Loops, Conditionals, Chaining and Branching
11.1	FOR/NEXT Loop
11.1.1	The STEP Option
11.1.2	Nesting Loops
11.1.3	EXIT FOR
11.1.4	REPEAT FOR
11.1.5	ITERATE FOR
11.2	DO LOOP
11.2.1	WHILE and UNTIL Options
11.2.2	EXIT DO
11.2.3	REPEAT DO
11.2.4	ITERATE DO
11.3	EXECUTE
11.4	Conditionals
11.5	IF/THEN ... END IF
11.5.1	ELSE Option
11.5.2	ELSEIF Option
11.6	SELECT CASE/END SELECT
11.6.1	CASE expr, expr, expr...
11.6.2	CASE ELSE Option
11.6.3	CASE IS Option
11.7	CHAIN Programs
11.8	Pass Commands to the Operating System
11.8.1	PASS [NOWAIT: | NORETURN:]
11.9	Branching
11.9.1	Branching and Code Blocks
11.10	GOTO
11.10.1	ON...GOTO...[ELSE]
11.10.1.1	ELSE Option
11.11	GOSUB/RETURN
11.11.1	GOSUB
11.11.2	ON...GOSUB
11.11.2.1	ELSE Option
11.12	DISPATCH
11.13	ROUTINE/END ROUTINE
11.13.1	EXIT ROUTINE
11.13.2	REPEAT ROUTINE
11.13.3	Private Variables in Routines
Chapter 12
12	Exception Handling
12.1	CAUSE EXCEPTION
12.2	WHEN EXCEPTION IN
12.3	WHEN EXCEPTION USE
12.4	HANDLER Routine Actions
12.4.1	RETRY
12.4.2	CONTINUE
12.4.3	RESUME
12.4.4	EXIT HANDLER
Chapter 13
13	Calling Routines Written In Other Languages
13.1	LIBRARY
13.2	CALL
13.2.1	Optional Arguments
13.2.2	Passing Mechanisms
Chapter 14
14	Data Structure Statements
14.1	General Information
14.2	OPEN STRUCTURE
14.2.1	ACCESS Option
14.2.2	LOCK Option
14.2.3	DATAFILE Option
14.3	CLOSE STRUCTURE struc_name
14.4	ADD STRUCTURE
14.4.1	CANCEL ADD
14.4.2	EXIT ADD
14.5	DELETE STRUCTURE
14.6	LOCK | UNLOCK STRUCTURE
14.7	EXTRACT STRUCTURE
14.7.1	INCLUDE Statement
14.7.2	EXCLUDE Statement
14.7.3	SORT Statement
14.7.4	FOR EACH/NEXT
14.7.5	EXTRACT STRUCTURE: KEY
14.7.6	EXTRACT STRUCTURE, FIELD: PARTIAL KEY
14.7.7	CANCEL EXTRACT
14.7.8	EXIT EXTRACT
14.7.9	REEXTRACT STRUCTURE
14.7.10	EXTRACT STRUCTURE: APPEND
14.7.11	EXTRACT STRUCTURE, SET, USING
14.7.12	EXTRACT STRUCTURE, SET, FIELD: KEY
14.8	ASK STRUCTURE
14.8.1	ASK STRUCTURE FIELD: item
14.8.1.1	FIELD Expressions
14.8.1.2	Item: ACCESS
14.8.1.3	Item: APPLICATION
14.8.1.4	Item: ATTRIBUTES
14.8.1.5	Item: CHANGEABLE
14.8.1.6	Item: CLASSIFICATION
14.8.1.7	Item: DATATYPE
14.8.1.8	Item: DESCRIPTION
14.8.1.9	Item: HEADING
14.8.1.10	Item: HELP
14.8.1.11	Item: KEYED
14.8.1.12	Item: LENGTH
14.8.1.13	Item: NAME
14.8.1.14	Item: NULL
14.8.1.15	Item: NUMBER
14.8.1.16	Item: OPTIMIZED
14.8.1.17	Item: POSITION
14.8.1.18	Item: PRINTMASK
14.8.1.19	Item: PROMPT
14.8.1.20	Item: SCREENMASK
14.8.1.21	Item: VRULES
14.8.2	ASK STRUCTURE: CURRENT
14.8.3	ASK STRUCTURE: DATAFILE
14.8.4	ASK STRUCTURE: FIELDS
14.8.5	ASK STRUCTURE: KEYS
14.8.6	ASK STRUCTURE: CAPABILITY
14.8.7	ASK STRUCTURE: EXTRACTED
14.8.8	ASK STRUCTURE: ID
14.8.9	ASK STRUCTURE: POINTER
14.8.10	ASK STRUCTURE: RECORD
14.8.11	ASK STRUCTURE: RECORDSIZE
14.8.12	ASK STRUCTURE: ACCESS
14.8.13	ASK |SET STRUCTURE: TIMEOUT
14.8.14	ASK | SET STRUCTURE #string_expr . . .
14.8.15	ASK STRUCTURE: ENGINE
14.9	SET STRUCTURE
14.9.1	SET STRUCTURE: CURRENT
14.9.2	SET STRUCTURE, FIELD: KEY
14.9.3	SET STRUCTURE, FIELD: PARTIAL KEY
14.9.4	SET STRUCTURE: ID
14.9.5	SET STRUCTURE: POINTER
14.9.6	SET STRUCTURE: RECORD
14.9.7	SET STRUCTURE: EXTRACTED 0
14.9.8	SET STRUCTURE, SET, USING: EXPRESSION 'owner'
14.9.9	SET STRUCTURE, SET: EXPRESSION 'owner'
14.9.10	SET STRUCTURE, SET, USING, FIELD: KEY
14.9.11	SET STRUCTURE, SET, USING