HP Pascal/iX Reference Manual (31502-90022)

9- 11
str
Usage
str (s, p, e)
Arguments
s A string expression.
p An integer expression indicating the index of the starting
character.
e An integer expression indicating the length of the substring.
Description
The function str (s, p, e) returns the portion of s which starts at s [ p
] and is of length e . The result is type string, and may be used as a
string expression. It is an error if strlen (s) is less than p + ( e -1).
Example
VAR
i: integer;
wish_list: string[132];
granted: string[5];
BEGIN
.
i:= 13;
wish_list:= 'wish1 wish2 wish3 wish4 wish5';
granted:= str(wish_list,i,5); { Selects the 3rd wish. }
{ Granted is 'wish3'. }
END.
strlen
Usage
strlen (s)
Argument
s A string expression.
Description
The function strlen (s) returns the current length of the string or PAC
expression s . If s is not initialized, strlen (s) is undefined.
Example
VAR
ars, vita: string[132];
b: boolean;
BEGIN
.
ars:= 'HELLO';
vita:= 'TO YOU';
IF strlen(ars) > strlen(vita) THEN
b:= true
ELSE
b:=false;
.