More comments on register specs

diff --git a/tab/default.idx b/tab/default.idx
index cec40e5..9e2cb81 100644 (file)
--- a/tab/default.idx
+++ b/tab/default.idx
@@ -1,38 +1,55 @@
 # Zebra indexes as referred to from the *.abs-files.
-#  $Id: default.idx,v 1.9 2002-04-13 18:16:43 adam Exp $
+#  $Id: default.idx,v 1.10 2004-07-28 09:40:46 adam Exp $
 #
+
 # Traditional word index
+# Used if completenss is 'incomplete field' (@attr 6=1) and
+# structure is word/phrase/word-list/free-form-text/document-text
 index w
 completeness 0
 position 1
 charmap string.chr
 
 # Phrase index
+# Used if completeness is 'complete {sub}field' (@attr 6=2, @attr 6=1)
+# and structure is word/phrase/word-list/free-form-text/document-text
 index p
 completeness 1
 charmap string.chr
 
 # URX (URL) index
+# Used if structure=urx (@attr 4=104)
 index u
 completeness 0
 charmap urx.chr
 
-# Numeric index (integer only)
+# Numeric index
+# Used if structure=numeric (@attr 4=109)
 index n
 completeness 0
 charmap numeric.chr
 
 # Null map index (no mapping at all)
+# Used if structure=key (@attr 4=3)
 index 0
 completeness 0
 position 1
 charmap @
 
-# Sort register (no mapping at all)
+# Year
+# Used if structure=year (@attr 4=4)
+index y
+completeness 0
+charmap @
+
+# Date
+# Used if structure=date (@attr 4=5)
+index d
+completeness 0
+charmap @
+
+# Sort register
 sort s
 completeness 1
 charmap string.chr
 
-index y
-completeness 0
-charmap @
\ No newline at end of file