str (x) substr (str, start, end) stridx (test, str) strlen (str)
DESCRIPTION The following functions are available for the manipulation of strings within the CL.
str (x)
Converts its argument into a string. The argument may be
boolean, integer or real.
substr (str, first, last)
Extracts a substring from string str.
The first character in the string is at index 1.
stridx (test, str)
Finds the position of the first occurence of any character found in test
in the string str, returning 0 if the match fails.
strlen (str)
Returns the current length of a string. Note that the maximum length may be
obtained as the value of the expression `param.p_length'.
1. Simple function calls.
s = str(y) # convert y to a string.
s = substr ("abcdefg", 2, 4) # s = "bcd"
i = stridx ("abc", " eeboq") # i = 4
i = strlen ("abc") # i = 3