12d0bf30d4a9fbe7aee60fdf9e7f8827116ba400
markd
  Wed Jan 27 17:49:12 2021 -0800
allow overlap select to ignore non-standard columns in BED as well as genePred and PSL, as often come with bigBed

diff --git src/hg/utils/overlapSelect/rowReader.h src/hg/utils/overlapSelect/rowReader.h
index 5f8c0e5..b7b99d7 100644
--- src/hg/utils/overlapSelect/rowReader.h
+++ src/hg/utils/overlapSelect/rowReader.h
@@ -1,34 +1,36 @@
 /* rowReader - read rows from tab files or databases without length restrictions */
 
 /* Copyright (C) 2010 The Regents of the University of California 
  * See README in this or parent directory for licensing information. */
 #ifndef ROWREADER_H
 #define ROWREADER_H
 
 struct rowReader
-/* object to read rows */
+/* object to read records as rows */
 {
     int numCols;          /* number of columns in current row */
-    char **row;           /* parsed row */
+    char **row;           /* split row */
+    int maxParsedCols;    /* number of columns that are to be parsed, others
+                           * should be just passed through. */
     int colSpace;         /* number of columns allocated in row */
     struct lineFile *lf;  /* if reading from a file */
 };
 
-struct rowReader *rowReaderOpen(char *fileName, boolean isPslFile);
+struct rowReader *rowReaderOpen(char *fileName, int maxParsedCols, boolean isPslFile);
 /* create a row reader for a file */
 
 void rowReaderFree(struct rowReader **rrPtr);
 /* free a row reader */
 
 boolean rowReaderNext(struct rowReader *rr);
 /* read the next row into the rowReader, return FALSE on EOF. */
 
 void rowReaderExpectAtLeast(struct rowReader *rr, int minCols);
 /* generate an error if there are not enough columns in a row */
 
 char **rowReaderCloneColumns(struct rowReader *rr);
 /* Make dynamic copy of columns currently in reader.  Vector is NULL terminated
  * and should be released with a single freeMem call. Must be called before
  * autoSql parser is called on a row, as it will modify array rows. */
 #endif