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[mkgmap-dev] multi-word street search

From Marko Mäkelä marko.makela at iki.fi on Wed Dec 17 10:54:10 GMT 2014

On Wed, Dec 17, 2014 at 10:30:30AM +0000, Steve Ratcliffe wrote:
>On 16/12/14 23:09, Andrzej Popowski wrote:
>>I guess this is offset greater than 127 coded on byte. I hope Garmin
>>treat offset as unsigned byte, so you could support values up to 255.
>>And maybe limit "end" value in addStreet function, unless size of label
>>is already limited.
>You really have names over 127 characters in length?  I will add checks
>assuming that 255 is the max.  Could you see if it works or if
>we have to limit to 127.

127 bytes in UTF-8 can be significantly less than 127 characters (31 
characters if all characters use 4 bytes). Maybe CJK names are not 
typically using that many characters. But perhaps Arabic or Hebrew or 
Indian exclusively uses 3-byte characters?  In that case, 127 bytes 
would be only 42 characters, which is not impossibly long.

I am under the impression that European scripts use at most 2 bytes per 
character in UTF-8. 63 characters would seem more than long enough for 
my Finnish taste. And Finnish uses close to 1 UTF-8 byte per character 
in the average. :)


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