Hi Gerd It could be trying to represent something as follows: For a device, there is no MDR17 string, so no possibility of using this to have index entries for parts of the street name. A street LBL can have any number of prefix / suffix chars. Multiple mdr7 repeat records can be generated for the same label, each specifying a prefix and suffix marker count/index to indicate that part of the label to be searchable. MdrDisplay shows these prefix/suffix indexes Ticker On Thu, 2022-01-20 at 20:02 +0000, Gerd Petermann wrote:
Hi Ticker,
I also wondered why these lines still exist: int bitsPrefix = (maxPrefixCount == 0) ? 0 : Integer.numberOfTrailingZeros(Integer.highestOneBit(maxPrefixCount)) + 1; int bitsSuffix = (maxSuffixCount == 0) ? 0 : Integer.numberOfTrailingZeros(Integer.highestOneBit(maxSuffixCount)) + 1;
The two counters are never increased in the current code. In r3968 there's some commented code which used them.
Gerd
________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap@jagit.co.uk> Gesendet: Donnerstag, 20. Januar 2022 19:22 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] use of --mdr7-del can break address search/street search
Hi Gerd
I'm struggling to understand the possibilities of Mdr7 (ordering, partialInfo, nameOffset, string different to label, etc etc)
My initial thought about nameOffset was that it was for skipping over the shield prefix or text before the 0x1b marker.
partialInfo is very strange; it seems to be used for part of the rr flag but the code suggests it also held counts of the number of prefixes and suffixes.
Sorry - not being much use here.
Ticker
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