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authorPhilipp Gesang <phg@phi-gamma.net>2015-06-13 00:40:45 +0200
committerPhilipp Gesang <phg@phi-gamma.net>2015-06-13 00:40:45 +0200
commit90f398e1c9d2896b2d30d0b66f9c8a88255511a8 (patch)
tree88459ad0c6986a6648c969726081248cd5c8d74e /doc/luaotfload.conf.rst
parentc4c4901173b0f4284534db1b6a3cfe865b05e15c (diff)
parentb271e253b40cd0af97f6d50f0461f87ad1ed5314 (diff)
downloadluaotfload-90f398e1c9d2896b2d30d0b66f9c8a88255511a8.tar.gz
Merge pull request #274 from phi-gamma/master
pull in current state of affairs
Diffstat (limited to 'doc/luaotfload.conf.rst')
-rw-r--r--doc/luaotfload.conf.rst23
1 files changed, 14 insertions, 9 deletions
diff --git a/doc/luaotfload.conf.rst b/doc/luaotfload.conf.rst
index b0d19d9..2a339ce 100644
--- a/doc/luaotfload.conf.rst
+++ b/doc/luaotfload.conf.rst
@@ -6,9 +6,9 @@
Luaotfload configuration file
-----------------------------------------------------------------------
-:Date: 2014-06-09
+:Date: 2015-04-20
:Copyright: GPL v2.0
-:Version: 2.5
+:Version: 2.6
:Manual section: 5
:Manual group: text processing
@@ -98,8 +98,9 @@ VARIABLES
Variables in belong into a configuration section and their values must
be of a certain type. Some of them have further constraints. For
example, the “color callback” must be a string of one of the values
-``pre_linebreak_filter`` or ``pre_output_filter``, defined in the
-section *run*.
+``post_linebreak_filter``, ``pre_linebreak_filter``, or
+``pre_output_filter``, defined in the section *run* of the
+configuration file.
Currently, the configuration is organized into four sections:
@@ -267,7 +268,7 @@ Section ``run``
+------------------+--------+------------------------------+
| variable | type | default |
+------------------+--------+------------------------------+
-| color-callback | s | ``"pre_linebreak_filter"`` |
+| color-callback | s | ``"post_linebreak_filter"`` |
+------------------+--------+------------------------------+
| definer | s | ``"patch"`` |
+------------------+--------+------------------------------+
@@ -278,10 +279,14 @@ Section ``run``
The ``color-callback`` option determines the stage at which fonts that
defined with a ``color=xxyyzz`` feature will be colorized. By default
-this happens in a ``pre_linebreak_filter`` but alternatively the
-``pre_output_filter`` may be chosen, which is faster but might produce
-inconsistent output. The latter also was the default in the 1.x series
-of Luaotfload.
+this happens in a ``post_linebreak_filter`` but alternatively the
+``pre_linebreak_filter`` or ``pre_output_filter`` may be chosen, which
+is faster but might produce inconsistent output. The
+``pre_output_filter`` used to be the default in the 1.x series of
+Luaotfload, whilst later versions up to and including 2.5 hooked into
+the ``pre_linebreak_filter`` which naturally didn’t affect any glyphs
+inserting during hyphenation. Both are kept around as options to
+restore the previous behavior if necessary.
The ``definer`` allows for switching the ``define_font`` callback.
Apart from the default ``patch`` one may also choose the ``generic``