+++ /dev/null
-The options record contains the complete metadata of a database.
-It uses tags in the range 800-899.
-If there is an .opt file for the Db,
-it contains a plaintext record of database options.
-
-Else, from a new-style plaintext database, record 0 is used.
-However, only the options range 850-899 has persistent properties of a database;
-other options are stored in record 0 not or only as a hint.
-
-
-Database options fall into several groups:
-- files and modes
-- tuning options
-- charset and collation
-- field definition
-- miscellaneous info
-- named views and index definition
-
-
-* files and modes
-
-| tag | Cname | name | description
-| 800 | DNAME | db | short name of db
-| 801 | DTYPE | format | aligned, naligned or autoformat (default)
-| 802 | DRO | ro | if 1/0/absent, open read/write/as of file permissions
-| 803 | DPATH | dbpath | path to database
-| 804 | DDUMP | internaldump | (unused)
-| 811 | DFDT | fdt | path to (traditional) fdt
-| 810 | DENC | encoding | encoding (character set) of data
-
-
-
-* field definition
-
-The compact field definition as described in
-> Meta
-uses field 890.
-| tag | C-name | name | description
-| 890 | FDEF | fdef | field definition
-
-
-In a long form, each field, subfield, enum value or other field
-related information is representated as a record using tags in
-the range 860-879.
-
-
-C-name is the name of the constant in C code (with prefix OPENISIS_),
-field is the corresponding field in the struct OpenIsisFd,
-name is the tags name as it can be used in Fdt-aware environments like Tcl.
-
-| tag | C-name | field | name | description
-| 860 | FDID | id | tag | key: the tag described by this entry
-| 861 | FDSUB | subf | subfield | key: the subfield described (or absent)
-| 862 | FDTYPE | type | type | code for field type; see table below
-| 863 | FDREP | rep | repeatable | whether field is repeatable (0/1)
-| 864 | FDNUMC | slen | numchilds | number of subfields (redundant)
-| 865 | FDLEN | len | length | max length or enum value
-| 866 | FDNAME | name | name | tags identifier name; max 30
-| 867 | FDDESC | desc | description | tags verbose name; max 30
-| 868 | FDPAT | pat | pattern | pattern for field
-| 869 | FDDFLT | dflt | default | default value
-| 870 | FDINFO | info | info | embedded record with additional info
-| 871 | FDCHLD | subs | children | embedded record for subfields (unused)
-
-
-Tags used to define a database
-| tag | C-name | name | description
-| 880 | FDT_LEN | flen | number of embedded FD records
-| 881 | FDT_FD | fd | embedded FD record with fields 860-879
-| 882 | FDT_REC | frec | embedded FDT header record with fields 850-852
-
-
-For informational purposes, traditional FDT parameters are mapped.
-| tag | Cnam | description
-| 850 | DFMT | worksheets from the FDT's W line
-| 851 | DPFT | printformats from the FDT's F line
-| 852 | DFST | field selection table from the FDT's S line
-
----
- $Id: Options.txt,v 1.3 2003/06/30 09:49:00 kripke Exp $
projects / webpac / blobdiff