On Thu, Feb 5, 2009 at 5:52 PM, Iceberg-Dev <dev.iceb...@gmail.com> wrote:
> Problem:
> --------
>
> I would like to transform a NSString to a NSString conforming to the C
> string format.
>
> Examples:
> ---------
>
> toto -> toto
>
> "toto -> \"toto
>
> toto -> toto\ntiti
> titi
>
>
> My Current Solution:
> --------------------
>
> I can do this using a NSMutableString and a series of call to:
>
> - replaceOccurrencesOfString:withString:options:range:
>
> The problem I see with this solution is that I will probably forget some
> cases.
>
> Question:
> ---------
>
> Would there be a better solution? (I couldn't find a method in NSString,
> NSMutableString CFStringRef APIs but I might missed it).
Depending on your goal, it might be better to forget about special
cases and just escape *everything*.
E.g. instead of transforming "toto -> "\"toto", transform it to
"\x22\x74\x6f\x74\x6f" or to { 0x22, 0x74, 0x6f, 0x74, 0x6f, 0x00 }.
This obviously produces larger and somewhat less readable output, but
you're assured that it will work on any input and requires no special
casing.
If this happens to be part of a build script, also consider using
/usr/bin/xxd -i which will produce this sort of output for you with no
work on your part.
Mike
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