HP 3000 Manuals HP 3000 Manuals
ELSEIF
Provides an alternate execution sequence within an IF statement. Native
Mode
Syntax
ELSEIF expression [THEN]
Parameters
expression Logical expression, consisting of operands and
relational operators. The THEN keyword is
optional. It may be used or omitted and has no
effect on the results. The operators listed in
table 2-12 may be incorporated in expression.
Table 2-12. Logical Operators - The ELSEIF Command
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| | |
| Logical operators: | AND, OR, XOR, NOT |
| | |
- -
| | |
| Boolean functions and values: | BOUND, TRUE, FALSE, ALPHA, ALPHANUM, NUMERIC, ODD |
| | |
- -
| | |
| Comparison operators: | =, <>, <, >, <=, >= |
| | |
- -
| | |
| Bit manipulation operators: | LSL, LSR, CSR, CSL, BAND, BOR, BXOR, BNOT |
| | |
- -
| | |
| Arithmetic operators: | MOD, ABS, * , / , + , -, ^ (exponentiation) |
| | |
- -
| | |
| Functions returning strings: | CHR, DWNS, UPS, HEX, OCTAL, INPUT, LFT, RHT, RPT, |
| | LTRIM, RTRIM, STR |
| | |
- -
| | |
| Functions returning integers: | ABS, LEN, MAX, MIN, ORD, POS, TYPEOF |
| | |
- -
| | |
| Other functions: | FINFO, SETVAR |
| | |
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Operation Notes
The ELSEIF command is used only in conjunction with the IF command. The
ELSEIF command provides a way of avoiding nested IF statements. ELSEIF
has meaning only when used after an IF construct.
Any number of ELSEIF commands may follow an IF command. In contrast,
only one ELSE command may follow an IF or ELSEIF command. Refer to the
ELSE and IF commands.
Use
This command may be issued from a session, job, program, or in BREAK.
Pressing Break has no effect unless expression contains the INPUT
evaluator function.
Example
The following example illustrates using the ELSE command with the IF
command:
IF EXPN1 THEN
...
ELSE
IF EXPN2 THEN
...
ELSE
IF EXPN3 THEN
...
ELSE
...
ENDIF
ENDIF
ENDIF
The same result can be accomplished more efficiently by using the ELSEIF
command:
IF EXPN1 THEN
...
ELSEIF EXPN2 THEN
...
ELSEIF EXPN3 THEN
...
ELSE
...
ENDIF
Notice that only one ELSE may follow an ELSEIF, while any number of
ELSEIF commands may follow an IF.
Related Information
Commands CALC, DELETEVAR, ELSE, ENDIF, IF, SETJCW, SETVAR, SHOWJCW,
SHOWVAR
Manuals None