===================================================================
RCS file: /cvs/mandoc/Attic/mandocdb.8,v
retrieving revision 1.12
retrieving revision 1.17
diff -u -p -r1.12 -r1.17
--- mandoc/Attic/mandocdb.8	2011/12/12 02:00:49	1.12
+++ mandoc/Attic/mandocdb.8	2011/12/25 21:00:23	1.17
@@ -1,4 +1,4 @@
-.\"	$Id: mandocdb.8,v 1.12 2011/12/12 02:00:49 schwarze Exp $
+.\"	$Id: mandocdb.8,v 1.17 2011/12/25 21:00:23 schwarze Exp $
 .\"
 .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: December 12 2011 $
+.Dd $Mdocdate: December 25 2011 $
 .Dt MANDOCDB 8
 .Os
 .Sh NAME
@@ -22,19 +22,21 @@
 .Nd index UNIX manuals
 .Sh SYNOPSIS
 .Nm
-.Op Fl av
+.Op Fl avW
 .Op Fl C Ar file
 .Nm
-.Op Fl av
+.Op Fl avW
 .Ar dir ...
 .Nm
-.Op Fl v
+.Op Fl vW
 .Fl d Ar dir
 .Op Ar
 .Nm
-.Op Fl v
+.Op Fl vW
 .Fl u Ar dir
 .Op Ar
+.Nm
+.Fl t Ar
 .Sh DESCRIPTION
 The
 .Nm
@@ -44,7 +46,13 @@ manuals and indexes them in a
 .Sx Keyword Database
 and
 .Sx Index Database
-for fast retrieval.
+for fast retrieval by
+.Xr apropos 1 ,
+.Xr whatis 1 ,
+and
+.Xr man 1 Ns 's
+.Fl k
+option.
 .Pp
 By default,
 .Nm
@@ -88,6 +96,17 @@ Merge (remove and re-add)
 to the database in
 .Ar dir
 without truncating it.
+.It Fl t Ar
+Check the given
+.Ar files
+for potential problems.
+No databases are modified.
+Implies
+.Fl a
+and
+.Fl W .
+All diagnostic messages are printed to the standard output;
+the standard error output is not used.
 .It Fl u Ar dir
 Remove
 .Ar
@@ -96,6 +115,9 @@ from the database in
 without truncating it.
 .It Fl v
 Display all files added or removed to the index.
+.It Fl W
+Print warnings about potential problems with manual pages
+to the standard error output.
 .El
 .Pp
 If fatal parse errors are encountered while parsing, the offending file
@@ -103,27 +125,26 @@ is printed to stderr, omitted from the index, and the 
 with the next input file.
 .Ss Index Database
 The index database,
-.Pa mandoc.index ,
+.Pa whatis.index ,
 is a
 .Xr recno 3
 database with record values consisting of
 .Pp
 .Bl -enum -compact
 .It
-the string
-.Cm mdoc ,
-.Cm man ,
+the character
+.Cm d ,
+.Cm a ,
 or
-.Cm cat
+.Cm c
 to indicate the file type
 .Po
-file in
 .Xr mdoc 7 ,
 .Xr man 7 ,
 and post-formatted, respectively
 .Pc ,
 .It
-the filename,
+the filename relative to the databases' path,
 .It
 the manual section,
 .It
@@ -137,19 +158,18 @@ and the description.
 .Pp
 Each of the above is NUL-terminated.
 .Pp
-Both the manual section and description may be zero-length if the record
-is unassigned.
-Entries are sequentially-numbered, but the filenames are unordered.
+If the record value is zero-length, it is unassigned.
 .Ss Keyword Database
 The keyword database,
-.Pa mandoc.db ,
+.Pa whatis.db ,
 is a
 .Xr btree 3
 database of NUL-terminated keywords (record length is non-zero string
-length plus one) mapping to a 12-byte binary field consisting of the
-64-bit keyword type and 32-bit source
+length plus one) mapping to a 16-byte binary field consisting of the
+64-bit keyword type and the 64-bit
 .Sx Index Database
 record number, both in network-byte order.
+.Pp
 The type bit-mask consists of the following
 values mapping into
 .Xr mdoc 7
@@ -195,9 +215,6 @@ macro identifiers:
 .It Li 0x0000001000000000ULL Ta \&Vt
 .It Li 0x0000002000000000ULL Ta \&Xr
 .El
-.Pp
-The last four bytes are a host-ordered record number within the
-.Sx Index Database .
 .Sh IMPLEMENTATION NOTES
 The time to construct a new database pair grows linearly with the
 number of keywords in the input files.
@@ -208,12 +225,12 @@ or
 respectively, grows as a multiple of the index length and input size.
 .Sh FILES
 .Bl -tag -width Ds
-.It Pa mandoc.db
+.It Pa whatis.db
 A
 .Xr btree 3
 keyword database mapping keywords to a type and file reference in
-.Pa mandoc.index .
-.It Pa mandoc.index
+.Pa whatis.index .
+.It Pa whatis.index
 A
 .Xr recno 3
 database of indexed file-names.
@@ -239,7 +256,7 @@ error accessing input files.
 Such errors cause
 .Nm
 to exit at once, possibly in the middle of parsing or formatting a file.
-The output databases are corrupt and should be removed .
+The output databases are corrupt and should be removed.
 .El
 .Sh DIAGNOSTICS
 If the following errors occur, the