35b8555ff457cb83b559327c6d7e9a1c5e5d5b04
tdreszer
  Tue Mar 15 09:31:17 2011 -0700
Added useful function used by text search alogrithm
diff --git src/lib/common.c src/lib/common.c
index fdff84b..d3796a1 100644
--- src/lib/common.c
+++ src/lib/common.c
@@ -739,30 +739,42 @@
     e = strchr(s, delimiter);
     if (e == NULL)
 	el = slNameNew(s);
     else
 	{
         el = slNameNewN(s, e-s);
 	e += 1;
 	}
     slAddHead(&list, el);
     s = e;
     }
 slReverse(&list);
 return list;
 }
 
+struct slName *slNameListOfUniqueWords(char *text)
+// Return list of unique words found by parsing string delimited by whitespace.
+{
+struct slName *list = NULL;
+char *word = NULL;
+while ((word = nextWord(&text)) != NULL)
+    slNameStore(&list, word);
+
+slReverse(&list);
+return list;
+}
+
 struct slName *slNameListFromStringArray(char *stringArray[], int arraySize)
 /* Return list of slNames from an array of strings of length arraySize.
  * If a string in the array is NULL, the array will be treated as
  * NULL-terminated (shorter than arraySize). */
 {
 char *s;
 struct slName *list = NULL, *el;
 int i;
 if (stringArray == NULL)
     return NULL;
 for (i = 0;  i < arraySize;  i++)
     {
     s = stringArray[i];
     if (s == NULL)
 	break;