INSTR

Description

The INSTR function finds substrings that are parts of a source string.
If the source string contains that substring, INSTR returns a 1-based offset.
The return value of INSTR is 0, if the substring could not be found.

Example

outmode -2
let a$ = "helloworld"
let b$ ="wo"
let i = instr (a$, b$)
print i
end

The output is 6 since "wo" is found at the sixth position of a$

Remarks

Internally the C-library function strstr is used.