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Re: string length [message #185324 is a reply to message #185321]

Tue, 18 March 2014 15:57

The Natural Philosoph
Messages: 993
Registered: September 2010

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Senior Member

On 18/03/14 15:11, Tim Streater wrote:
> In article <umgkqacqlbwl(dot)1erkg4bj91fbo$(dot)dlg(at)40tude(dot)net>, richard
> <noreply(at)example(dot)com> wrote:
>
>> What can I use to count the number of characters in a string?
>> strlen() does not seem to work properly.
>
> IME, it does.
>
>> count_chars() does several different things but does not count the total.
>> In BASIC I would use value=len(a$).
>> I've had a look at the string functions and don't see a one that does
>> this.
>>
>> what I'm looking to do is, read a directory and load an array based upon
>> certain conditions of the file name.
>>
>> Using strlen and trying to match the file length to a fixed value does
>> not
>> work for me.
>
> Suggest you give some examples which fail. You sure there are no
> unprintable characters in the filename?
>
> I've never had a problem with strlen.
>
IIRC and it may be wrong, strlen() gives the number of octets in the
string, which may fail for multi-byte character sets.

mb_strlen() returns the number of characters, if supplied with the
correct encoding.

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[Message index]

		string length By: Mr Oldies on Tue, 18 March 2014 14:45
		Re: string length By: Tim Streater on Tue, 18 March 2014 15:11
		Re: string length By: Peter H. Coffin on Tue, 18 March 2014 15:39
		Re: string length By: The Natural Philosoph on Tue, 18 March 2014 15:57
		Re: string length By: Gabriel on Tue, 18 March 2014 15:53
		Re: string length By: The Natural Philosoph on Tue, 18 March 2014 16:00
		Re: string length By: Tim Streater on Tue, 18 March 2014 17:47
		Re: string length By: Denis McMahon on Tue, 18 March 2014 22:50

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