X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/491f5961e1b6094d982f8174614991e70d95e6d4..f4e958a66d213d0263b560cc2e3037c1a415d2b3:/module/nominatim.c

diff --git a/module/nominatim.c b/module/nominatim.c
index 63b2baf4..75238e22 100644
--- a/module/nominatim.c
+++ b/module/nominatim.c
@@ -54,7 +54,8 @@ transliteration( PG_FUNCTION_ARGS )
 	wchardatastart = wchardata = (unsigned int *)palloc((sourcedatalength+1)*sizeof(int));
 
 	// Based on pg_utf2wchar_with_len from wchar.c
-        while (sourcedatalength > 0 && *sourcedata)
+	// Postgresql strings are not zero terminalted
+        while (sourcedatalength > 0)
         {
                 if ((*sourcedata & 0x80) == 0)
                 {
@@ -68,7 +69,7 @@ transliteration( PG_FUNCTION_ARGS )
                         c1 = *sourcedata++ & 0x1f;
                         c2 = *sourcedata++ & 0x3f;
                         *wchardata = (c1 << 6) | c2;
-			wchardata++;
+			if (*wchardata < 65536) wchardata++;
                         sourcedatalength -= 2;
                 }
                 else if ((*sourcedata & 0xf0) == 0xe0)
@@ -78,7 +79,7 @@ transliteration( PG_FUNCTION_ARGS )
                         c2 = *sourcedata++ & 0x3f;
                         c3 = *sourcedata++ & 0x3f;
                         *wchardata = (c1 << 12) | (c2 << 6) | c3;
-			wchardata++;
+			if (*wchardata < 65536) wchardata++;
                         sourcedatalength -= 3;
                 }
                 else if ((*sourcedata & 0xf8) == 0xf0)
@@ -89,7 +90,7 @@ transliteration( PG_FUNCTION_ARGS )
                         c3 = *sourcedata++ & 0x3f;
                         c4 = *sourcedata++ & 0x3f;
                         *wchardata = (c1 << 18) | (c2 << 12) | (c3 << 6) | c4;
-			wchardata++;
+			if (*wchardata < 65536) wchardata++;
                         sourcedatalength -= 4;
                 }
                 else if ((*sourcedata & 0xfc) == 0xf8)
@@ -97,17 +98,20 @@ transliteration( PG_FUNCTION_ARGS )
 			// table does not extend beyond 4 char long, just skip
 			if (sourcedatalength < 5) break;
 			sourcedatalength -= 5;
+			sourcedata += 5;
 		}
                 else if ((*sourcedata & 0xfe) == 0xfc)
                 {
 			// table does not extend beyond 4 char long, just skip
 			if (sourcedatalength < 6) break;
 			sourcedatalength -= 6;
+			sourcedata += 6;
 		}
                 else
                 {
 			// assume lenngth 1, silently drop bogus characters
                         sourcedatalength--;
+			sourcedata += 1;
                 }
         }
         *wchardata = 0;
@@ -139,12 +143,12 @@ transliteration( PG_FUNCTION_ARGS )
 				resultdata++;
 			}
 		}
-		else
+		/*else
 		{
 			ereport( WARNING, ( errcode( ERRCODE_SUCCESSFUL_COMPLETION ),
 		              errmsg( "missing char: %i\n", *wchardata )));
 			
-		}
+		}*/
 		wchardata++;
 	}