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Assigns values to MPE/iX variables. (Native Mode) Syntax | |
SETVAR varname { <space> , ; } expression Parameters | |
- varname
The variable that is to be set to a value. - expression
The expression that is evaluated and assigned to
varname.
Operation Notes | |
This command assigns values to MPE/iX variables. Variable
names may be any combination of letters and numbers plus the underbar
character, up to a total of 255 characters. Variables must start
with a letter or the underbar character. The expression parameter may be
an MPE/iX expression, a Boolean, integer, or string value, or the
name of another variable. If expression
consists of elements and operators MPE/iX accepts ('abc' + 'cd'
or 2*5+1), SETVAR
will evaluate it. The operators defined in Table 7-1 “Logical Operators - The SETVAR Command” may be used in expression. Table 7-1 Logical Operators - The SETVAR Command | 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 |
The allowed operands are any variable, integer constant (hexadecimal
($), octal (%),
or decimal) quoted string constant, the Boolean constants TRUE and
FALSE, or the JCW mnemonics (SYSTEM,
FATAL, for example,
as defined in the SETJCW
command). Note that all variables are global, so the CI variable name
should not be the same as the JCW name that is being used or the
operation of the code that uses that JCW will be affected. Compound logical expressions can be formed using the AND,
NOT, XOR, and OR logical operators, and nested within parentheses. The Boolean value of the keyword TRUE or FALSE is overridden
if there is a variable of the same name. For example, to store the
string value 'ABC'
in X, enter: SETVAR TRUE 'ABC'
SETVAR X TRUE |
The SETVAR
command may be used to set the command interpreter's search path
(HPPATH), the
command interpreter's prompt (HPPROMPT),
and all other variables. You use SHOWVAR
to see all the variables that were created by the user. Issuing
SHOWVAR @ causes
the display of every predefined and user-defined variable. Use | |
This command may be issued from a session, job, program, or
in BREAK. Pressing Break terminates
an INPUT ( ) function. Example | |
To change the command interpreter prompt to your username.accountname,
enter: SETVAR HPPROMPT "!HPUSER.!HPACCOUNT:" or
SETVAR HPPROMPT HPUSER+"."+HPACCOUNT+":" |
The result is the same regardless of which form of the command
you use. Related Information | |
- Commands
DELETEVAR,
INPUT, SETJCW,
SHOWJCW, SHOWVAR - Manuals
Appendix A, "Predefined Variables in MPE/iX" Appendix B, "Expression Evaluator Functions"
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