b168eec18c0cb3f2d06b1ccc59eb34776403f50e
kent
  Wed May 31 18:05:09 2017 -0700
Writing and testing new csvParseNext function.

diff --git src/inc/csv.h src/inc/csv.h
index cff8000..d4bcdce 100644
--- src/inc/csv.h
+++ src/inc/csv.h
@@ -1,17 +1,26 @@
 /* csv - stuff to help process comma separated values.  Have to wrap quotes around
  * things with commas, and escape quotes with more quotes sometimes. */
 
 #ifndef CSV_H
 #define CSV_H
 
 char *csvEscapeToDyString(struct dyString *dy, char *string);
 /* Wrap string in quotes if it has any commas.  Anything already in quotes get s double-quoted 
  * Returns transformated result, which will be input string if it has no commas, otherwise
  * will be dy*/
 
 void csvWriteVal(char *val, FILE *f);
 /* Write val, which may have some quotes or commas in it, in a way to be compatable with
  * csv list representation */
 
+char *csvParseNext(char **pos, struct dyString *scratch);
+/* Return next value starting at pos, putting results into scratch and
+ * returning scratch->string or NULL if no values left. Will update *pos
+ * to after trailing comma if any. This will tolerate and ignore leading
+ * and trailing white space.  
+ *     Since an empty or all-white string is will return NULL, if you
+ * want empty strings to be a legitimate value then they have to be quoted
+ * or followed by a comma. */
+
 #endif /* CSV_H */