deloptes (2018-04-04): > ok, thanks. I understood the part above, but not sure if I understand this > part. A standard text editing operation is find and replace, where you get > the start and end point in the string. Of course it is not "n completely > out of the blue". I am not sure exactly what is your example, but you got its flaw right: n is not out of the blue, it was obtained by previously walking the string. And in that case, you have all freedom to express n as a more convenient entity than an index expressed in terms of chars. A pointer maybe, or a pair with both the char index and the octet offset. Regards, -- Nicolas George
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