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=======================================================================
                            luaotfload-tool
=======================================================================

-----------------------------------------------------------------------
         generate and query the Luaotfload font names database
-----------------------------------------------------------------------

:Date:      2014-01-02
:Copyright: GPL v2.0
:Version:   2.5
:Manual section: 1
:Manual group: text processing

SYNOPSIS
=======================================================================

**luaotfload-tool** [ -bDfFiIlnpquvVhw ]

**luaotfload-tool** --update [ --force ] [ --quiet ] [ --verbose ]
                             [ --prefer-texmf ] [ --dry-run ]
                             [ --formats=[+|-]EXTENSIONS ]
                             [ --no-compress ] [ --no-strip ]

**luaotfload-tool** --find=FONTNAME [ --fuzzy ] [ --info ] [ --inspect ]
                                    [ --no-reload ]

**luaotfload-tool** --flush-lookups

**luaotfload-tool** --cache=DIRECTIVE

**luaotfload-tool** --list=CRITERION[:VALUE] [ --fields=F1,F2,...,Fn ]

**luaotfload-tool** --help

**luaotfload-tool** --version

**luaotfload-tool** --show-blacklist

**luaotfload-tool** --diagnose=CHECK

DESCRIPTION
=======================================================================

luaotfload-tool accesses the font names database that is required by
the *Luaotfload* package. There are two general modes: **update** and
**query**.

+ **update**:  update the database or rebuild it entirely;
+ **query**:   resolve a font name or display close matches.

OPTIONS
=======================================================================

update mode
-----------------------------------------------------------------------
--update, -u            Update the database; indexes new fonts.
--force, -f             Force rebuilding of the database; re-indexes
                        all fonts.
--no-reload, -n         Suppress auto-updates to the database (e.g.
                        when ``--find`` is passed an unknown name).
--no-strip              Do not strip redundant information after
                        building the database. Warning: this will
                        inflate the index to about two to three times
                        the normal size.
--no-compress, -c       Do not filter the plain text version of the
                        font index through gzip. Useful for debugging
                        if your editor is built without zlib.

--prefer-texmf, -p      Organize the file name database in a way so
                        that it prefer fonts in the *TEXMF* tree over
                        system fonts if they are installed in both.
--max-fonts=N           Process at most *N* font files, including fonts
                        already indexed in the count.
--formats=EXTENSIONS    Extensions of the font files to index.
                        Where *EXTENSIONS* is a comma-separated list of
                        supported file extensions (otf, ttf, ttc,
                        dfont, pfa, and pfb).  If the list is prefixed
                        with a ``+`` sign, the given list is added to
                        the currently active one; ``-`` subtracts.
                        Default: *otf,ttf,ttc,dfont*.
                        Examples:

                        1) ``--formats=-ttc,ttf`` would skip
                           TrueType fonts and font collections;
                        2) ``--formats=otf`` would scan only OpenType
                           files;
                        3) ``--formats=+pfb`` includes binary
                           Postscript files. **Warning**: with a
                           standard TeX Live installation this will
                           grow the database considerably and slow down
                           font indexing.

--dry-run, -D           Don’t load fonts, scan directories only.
                        (For debugging file system related issues.)

query mode
-----------------------------------------------------------------------
--find=NAME             Resolve a font name; this looks up <name> in
                        the database and prints the file name it is
                        mapped to.
                        ``--find`` also understands request syntax,
                        i.e. ``--find=file:foo.otf`` checks whether
                        ``foo.otf`` is indexed.
--fuzzy, -F             Show approximate matches to the file name if
                        the lookup was unsuccessful (requires
                        ``--find``).

--info, -i              Display basic information to a resolved font
                        file (requires ``--find``).
--inspect, -I           Display detailed information by loading the
                        font and analyzing the font table; very slow!
                        For the meaning of the returned fields see
                        the LuaTeX documentation.
                        (requires ``--find``).
--warnings, -w          Print the warnings generated by the fontloader
                        library (assumes ``-I``). Automatically enabled
                        if the verbosity level exceeds 2.

--show-blacklist, -b    Show blacklisted files (not directories).
--list=CRITERION        Show entries, where *CRITERION* is one of the
                        following:

                        1) the character ``*``, selecting all entries;
                        2) a field of a database entry, for instance
                           *version* or *format**, according to which
                           the output will be sorted.
                           Information in an unstripped database (see
                           the option ``--no-strip`` above) is nested:
                           Subfields of a record can be addressed using
                           the ``->`` separator, e. g.
                           ``file->location``, ``style->units_per_em``,
                           or
                           ``names->sanitized->english->prefmodifiers``.
                           NB: shell syntax requires that arguments
                           containing ``->`` be properly quoted!
                        3) an expression of the form ``field:value`` to
                           limit the output to entries whose ``field``
                           matches ``value``.

                        For example, in order to output file names and
                        corresponding versions, sorted by the font
                        format::

                            ./luaotfload-tool.lua --list="format" --fields="file->base,version"

                        This prints::

                            otf latinmodern-math.otf  Version 1.958
                            otf lmromancaps10-oblique.otf 2.004
                            otf lmmono8-regular.otf 2.004
                            otf lmmonoproplt10-bold.otf 2.004
                            otf lmsans10-oblique.otf  2.004
                            otf lmromanslant8-regular.otf 2.004
                            otf lmroman12-italic.otf  2.004
                            otf lmsansdemicond10-oblique.otf  2.004
                            ...

--fields=FIELDS         Comma-separated list of fields that should be
                        printed.
                        Information in an unstripped database (see the
                        option ``--no-strip`` above) is nested:
                        Subfields of a record can be addressed using
                        the ``->`` separator, e. g.
                        ``file->location``, ``style->units_per_em``,
                        or ``names->sanitized->english->subfamily``.
                        The default is plainname,version*.
                        (Only meaningful with ``--list``.)

font and lookup caches
-----------------------------------------------------------------------
--flush-lookups         Clear font name lookup cache (experimental).

--cache=DIRECTIVE       Cache control, where *DIRECTIVE* is one of the
                        following:

                        1) ``purge`` -> delete Lua files from cache;
                        2) ``erase`` -> delete Lua and Luc files from
                           cache;
                        3) ``show``  -> print stats.

miscellaneous
-----------------------------------------------------------------------
--verbose=N, -v         Set verbosity level to *n* or the number of
                        repetitions of ``-v``.
--quiet                 No verbose output (log level set to zero).
--log=CHANNEL           Redirect log output (for database
                        troubleshooting), where *CHANNEL* can be

                        1) ``stdout`` -> all output will be
                           dumped to the terminal (default); or
                        2) ``file`` -> write to a file to the temporary
                           directory (the name will be chosen
                           automatically.

--version, -V           Show version numbers of components as well as
                        some basic information and exit.
--help, -h              Show help message and exit.

--diagnose=CHECK        Run the diagnostic procedure *CHECK*. Available
                        procedures are:

                        1) ``files`` -> check *Luaotfload* files for
                           modifications;
                        2) ``permissions`` -> check permissions of
                           cache directories and files;
                        3) ``environment`` -> print relevant
                            environment and kpse variables;
                        4) ``repository`` -> check the git repository
                           for new releases,
                        5) ``index`` -> check database, display
                           information about it.

                        Procedures can be chained by concatenating with
                        commas, e.g. ``--diagnose=files,permissions``.
                        Specify ``thorough`` to run all checks.

FILES
=======================================================================

The font name database is usually located in the directory
``texmf-var/luatex-cache/generic/names/`` (``$TEXMFCACHE`` as set in
``texmf.cnf``) of your *TeX Live* distribution as a zlib-compressed
file ``luaotfload-names.lua.gz``.
The experimental lookup cache will be created as
``luaotfload-lookup-cache.lua`` in the same directory.
These Lua tables are not used directly by Luaotfload, though.
Instead, they are compiled to Lua bytecode which is written to
corresponding files with the extension ``.luc`` in the same directory.
When modifying the files by hand keep in mind that only if the bytecode
files are missing will Luaotfload use the plain version instead.
Both kinds of files are safe to delete, at the cost of regenerating
them with the next run of *LuaTeX*.

SEE ALSO
=======================================================================

**luatex** (1), **lua** (1)

* ``texdoc luaotfload`` to display the manual for the *Luaotfload*
  package
* Luaotfload development `<https://github.com/lualatex/luaotfload>`_
* LuaLaTeX mailing list  `<http://tug.org/pipermail/lualatex-dev/>`_
* LuaTeX                 `<http://luatex.org/>`_
* ConTeXt                `<http://wiki.contextgarden.net>`_
* Luaotfload on CTAN     `<http://ctan.org/pkg/luaotfload>`_

BUGS
=======================================================================

Tons, probably.

AUTHORS
=======================================================================

*Luaotfload* is maintained by the LuaLaTeX dev team
(`<https://github.com/lualatex/>`__).
The fontloader code is provided by Hans Hagen of Pragma ADE, Hasselt
NL (`<http://pragma-ade.com/>`__).

This manual page was written by Philipp Gesang
<philipp.gesang@alumni.uni-heidelberg.de>.