Add:Core:Support for custom tags for gpx log

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@2741 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/navit/vehicle.c b/navit/navit/vehicle.c
index fe8c282..6fe75ee 100644 (file)
--- a/navit/navit/vehicle.c
+++ b/navit/navit/vehicle.c
@@ -386,6 +386,39 @@ vehicle_log_nmea(struct vehicle *this_, struct log *log)
        log_write(log, pos_attr.u.str, strlen(pos_attr.u.str), 0);
 }
 
+void
+vehicle_log_gpx_add_tag(char *tag, char **logstr)
+{
+       char *ext_start="\t<extensions>\n";
+       char *ext_end="\t</extensions>\n";
+       char *trkpt_end="</trkpt>";
+       char *start=NULL,*end=NULL;
+       if (!*logstr) {
+               start=g_strdup(ext_start);
+               end=g_strdup(ext_end);
+       } else {
+               char *str=strstr(*logstr, ext_start);
+               int len;
+               if (str) {
+                       len=str-*logstr+strlen(ext_start);
+                       start=g_strdup(*logstr);
+                       start[len]='\0';
+                       end=g_strdup(str+strlen(ext_start));
+               } else {
+                       str=strstr(*logstr, trkpt_end);
+                       len=str-*logstr;
+                       end=g_strdup_printf("%s%s",ext_end,str);
+                       str=g_strdup(*logstr);
+                       str[len]='\0';
+                       start=g_strdup_printf("%s%s",str,ext_start);
+                       g_free(str);
+               }
+       }
+       *logstr=g_strdup_printf("%s%s%s",start,tag,end);
+       g_free(start);
+       g_free(end);
+}
+
 static void
 vehicle_log_gpx(struct vehicle *this_, struct log *log)
 {