2b3c259e853148c4532ea3c8154b51bb7662268b
kent
  Tue Apr 26 23:23:42 2011 -0700
Adding raTagVals function.
diff --git src/lib/ra.c src/lib/ra.c
index 9ac4968..dabade1 100644
--- src/lib/ra.c
+++ src/lib/ra.c
@@ -375,15 +375,34 @@
             }
         if (filterValue != NULL && differentString(filterValue,filter))
             {
             hashFree(&hash);
             continue;
             }
         }
         hashAdd(bigHash, key, hash);
     }
 lineFileClose(&lf);
 if (hashNumEntries(bigHash) == 0)
     hashFree(&bigHash);
 return bigHash;
 }
 
+struct hash *raTagVals(char *fileName, char *tag)
+/* Return a hash of all values of given tag seen in any stanza of ra file. */
+{
+struct hash *hash = hashNew(0);
+struct lineFile *lf = lineFileOpen(fileName, TRUE);
+char *line;
+while (lineFileNextFullReal(lf, &line))
+    {
+    char *word = nextWord(&line);
+    if (sameString(word, tag))
+        {
+	char *val = trimSpaces(line);
+	if (!hashLookup(hash, val))
+	    hashAdd(hash, val, NULL);
+	}
+    }
+lineFileClose(&lf);
+return hash;
+}