[mkgmap-dev] Commit: r1654: RuleSet: Update usedTags after merging other RuleSet

Mon Jun 28 22:40:58 BST 2010

Version 1654 was commited by elrond on 2010-06-28 22:40:57 +0100 (Mon, 28 Jun 2010) 

RuleSet: Update usedTags after merging other RuleSet

Issue: If you have a style A that has a base style B, only                      
the main tags from A are considered. This means, that many                      
rules from B are not used.                                                      

I haven't tracked down exactly why and where it happens,                        
but I assume, that some code cleans up the osm data                             
straight after/while reading it and removes any "useless"                       
tags. To save memory.                                                           

Anyway, I found a solution: Update the "usedTags" of the                        
RuleSet after merging in the base-RuleSet.                                      