Hi, Is this the best way to make bug reports? I couldn't find a 'trac' for mkgmap... Using r3230, if I have the following in a style file: name=* & highway=* {set name='${name|subst:^(Doctor|Dokter) ~>Dr }'} then mkgmap crashes while loading the style files. After doing various tests my conclusion is that it is triggered by the "|" in the pattern. I tried escaping it with a backslash but it didn't change anything. I have found a kind-of workaround, by making the alternatives into separate calls to subst, but that will result in enormously long commands in the real use I have in mind. The example above is deliberately short to illustrate the bug. The stack trace is: java.lang.IllegalStateException: No match found at java.util.regex.Matcher.group(Unknown Source) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuilder.addFilter(ValueBuilder.java:168) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuilder.addTagValue(ValueBuilder.java:156) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuilder.compile(ValueBuilder.java:133) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuilder.<init>(ValueBuilder.java:45) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuilder.<init>(ValueBuilder.java:40) at uk.me.parabola.mkgmap.osmstyle.actions.ValueBuildedAction.add(ValueBuildedAction.java:30) at uk.me.parabola.mkgmap.osmstyle.actions.AddTagAction.<init>(AddTagAction.java:44) at uk.me.parabola.mkgmap.osmstyle.actions.ActionReader.readTagValue(ActionReader.java:169) at uk.me.parabola.mkgmap.osmstyle.actions.ActionReader.readActions(ActionReader.java:60) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.loadFile(RuleFileReader.java:117) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.checkCommand(RuleFileReader.java:192) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.loadFile(RuleFileReader.java:109) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.load(RuleFileReader.java:86) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readRules(StyleImpl.java:302) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.<init>(StyleImpl.java:160) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readStyle(StyleImpl.java:554) at uk.me.parabola.mkgmap.reader.osm.RelationStyleHook.init(RelationStyleHook.java:38) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.pluginChain(OsmMapDataSource.java:185) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.setupHandler(OsmMapDataSource.java:153) at uk.me.parabola.mkgmap.reader.osm.bin.OsmBinMapDataSource.load(OsmBinMapDataSource.java:49) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.load(OsmMapDataSource.java:127) at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:167) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:63) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:220) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:216) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Exiting - if you want to carry on regardless, use the --keep-going option Time finished: Wed May 28 08:37:41 CEST 2014 Total time taken: 1124ms Thanks for a great program! Regards, Colin