GetSubString |
Strings | |
Aptilis 2 |
GetSubString(String, FromWhere[, HowManyCharacters])
GetSubString extracts a sub-part of a string (substring).
If no length is given, then the substring goes from
FromWhere to the end of the mother string.
If FromWhere is negative, it is set to 1, and HowManyCharacters
is decreased by the absolute value of the original HowManyCharacters.
if HowManyCharacters is negative, characters are taken from
FromWhere, then to the left.
Return Value:
A substring of the specified string.
Example 1:
a = GetSubString("short bread", 7) $ print(a$)Result:
bread |
Example 2:
t = "One two three" $ a = GetSubString(t$, 5, 3) $ print(a$)Result:
two |
Notes:
For left, right and GetSubString, indexes start at one.
if the start position goes beyond the length of the expression
given, an empty string is returned.
If the length given goes beyond the expression given, only
the available characters are returned, and no padding occurs.