 |
» |
|
|
|
The following table identifies most of the expression evaluator functions. For a list of the latest evaluator functions, refer to the
MPE/iX Commands Reference Manual
(32650-90003) Table B-1 Expression Evalua0tor Functions | Symbol | Function | Example | Result |
|---|
| +(numeric) | addition | 4 + 5 | 9 | | +(string) | concatenate | "abc" + "de" | abcde | | -(numeric) | subtraction | 12 - 6 | 6 | | -(string) | deletion of first occurrence | "abc" - "b" | ac | | * | multiplication | 4 * 5 | 20 | | / | integer division | 79/ 10 | 7 | | 2 | exponentiation (0^0 yields 1) | 2^3 | 8 | | either " or ' | string identifier
| either "abc" or 'abc' | abc | | () | parentheses | (3 + 4) * 2 | 14 | | < | less than (Strings are compared character by character, until an inequality exists.) | 5 < 6 'abcc' < 'abdc' 'abcd' &> 'abc' | TRUE TRUE TRUE | | <= | less than or equal | "abc" <= "abc" | TRUE | | > | greater than | "xyz" > "abc" | TRUE | | >= | greater than or equal | "abc" >= "abc" |
TRUE | | <> | not equal | 5 <> 6 | TRUE | | = | equal | "xyz"= "xyz" | TRUE | | ABS(integer) | absolute value | ABS(-4) | 4 | | ALPHA(string) | check if a string is alphabetic | ALPHA('abcd') ALPHA('ab3d ef') | TRUE FALSE | | ALPHANUM(string) | check if a string is only alphabetics and digits | ALPHANUM('abCd') ALPHANUM('45abd') ALPHANUM('3d ef') | TRUE TRUE FALSE | | AND | logical and | 7=7 AND 5=5 | TRUE | | BAND | bitwise and | 7 BAND 13 | 5 | | BNOT | bitwise not | BNOT 5 | -6 | | BOR | bitwise or | 5 BOR 2 | 7 | | BOUND(varname) | variable definition test (Returns TRUE if varname has been defined.) | BOUND(HPPATH) | TRUE | | BXOR | bitwise exclusive or | 7 BXOR 5 | 2 | | CHR(integer) | ASCII value (integer) ===> character | CHR(65) | A | | CSL | circular shift left | -2 CSL 2 | -5 | | CSR | circular shift right | -7 CSR 1 | -4 | | DWNS(string) | shift string to lowercase (Operates on ASCII characters in ranges of 'a' through 'z' and 'A' through 'Z' only.) | DWNS('aBC&#dE') | abc&#de | | FINFO(filename,option) | file information | FINFO('x.pub',0) | TRUE | | HEX(integer) | convert to hexadecimal string | HEX(329) | $149 | | INPUT([prompt][,wait]) | accept user input | INPUT('Enter choice:',20) | Enter choice: YReturn
"Y" | | LEN(string) | string length | LEN("abc") | 3 | | LFT(string, # chars) | left string extraction | LFT('abc',2) | ab | | LSL | logical shift left | 7 LSL 1 | 14 | | LSR | logical shift right | -7 LSR 1 | 2,147,483,644 | | LTRIM(string[,trimstr]) | trim left end of string | 'X'+LTRIM(' abc') "X"+LTRIM('...abc', '.') | Xabc Xabc | | MAX(num1[,num2...]) | find largest of several integers | MAX(5,4-3,70,0) | 70 | | MIN(num1[,num2...]) | find smallest of several integers | MIN(5,4,-3,70,0) | -3 | | MOD | modulo | 25 MOD 2 | 1 | | NOT | logical not | NOT(2>1) | FALSE | | NUMERIC(string) | check is a string is all digits | NUMERIC('12345') NUMERIC('$a234ef') | TRUE FALSE | | OCTAL(integer) | convert to octal string | OCTAL(329) | %511 | | ODD(integer) | determine if integer is odd | ODD(233) ODD(-2) | TRUE FALSE | | OR | logical or | 5=5 OR 2=3 | TRUE | | ORD(string) | ordinal | ORD('AbcD') | 65 | | POS(find str,source str[,n]) | find Nth occurrence of find str in source str (-N searches from right) | POS('ab','cgabd') POS('.','file.grp.acct',2) POS('.','file.grp.acct',-1) | 3 9 9 | | RHT(string, # chars) | right string extraction | RHT("abc",2) | bc | | RPT(string,count) | repeat a string (-count reverses string) | RPT('aBc',3) RPT('aBc',-3) | aBcaBcaBc cBacBacBa | | RTRIM(string[,trimstr]) | trim right end of string | RTRIM('abc ')+'X' RTRIM('abc...','.')+"X" | abcX abc X | | SETVAR(varname,expr) | return result of expr and set varname to result | SETVAR(myvar,2*3+5) | sets variable myvar to 11 and returns 11 | | STR(string,start pos, # chars) | general string extraction | STR('abcde',2,3) | bcd | | TYPEOF(expression) | type of variable or expression (0 = invalid, 1 = integer, 2 = string, 3 = Boolean value) | TYPEOF(HPPATH) | 2 (string) | | UPS(string) | shift string to uppercase (Operates on ASCII characters in range of 'a' through 'z' and 'A' through 'Z'.) | UPS('aBc5d') | ABC5D | | XOR | logical exclusive or | 7=7 XOR 5=5 | FALSE |
|
