c7723adc566681d4f69232076df356c36aa5a1cf
max
  Fri Sep 9 16:03:22 2016 -0700
adding first versin of pipeline for crispr tracks and trackDb statements supporting external extra fields, refs #17235

diff --git src/hg/hgc/hgc.h src/hg/hgc/hgc.h
index 4b310d7..70ee4b6 100644
--- src/hg/hgc/hgc.h
+++ src/hg/hgc/hgc.h
@@ -465,26 +465,29 @@
 
 void htcLrgCdna(char *item);
 /* Serve up LRG transcript cdna seq */
 
 void doPeptideAtlas(struct trackDb *tdb, char *item);
 /* Details for PeptideAtlas peptide mapping */
 
 void doGtexGeneExpr(struct trackDb *tdb, char *item);
 /* Details of GTEX gene expression item */
 
 void printAddWbr(char *text, int distance);
 /* a crazy hack for firefox/mozilla that is unable to break long words in tables
  * We need to add a <wbr> tag every x characters in the text to make text breakable.
  */
 
+struct slPair* getExtraFields(struct trackDb *tdb, char **fields, int fieldCount);
+/* return the extra field names and their values as a list of slPairs */
+
 int extraFieldsPrint(struct trackDb *tdb,struct sqlResult *sr,char **fields,int fieldCount);
 // Any extra bed or bigBed fields (defined in as and occurring after N in bed N + types.
 // sr may be null for bigBeds.
 // Returns number of extra fields actually printed.
 
 #define NUCCORE_SEARCH "http://www.ncbi.nlm.nih.gov/sites/entrez?db=nuccore&cmd=search&term="
 
 void doJRepeat (struct trackDb *tdb, char *repeat);
    /* New RepeatMasker Visualization defined in joinedRmskClick.c */
 
 #endif