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|
%%
%% This is file `luababel.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% babel.dtx (with options: `luatex')
%%
%%
%% Copyright (C) 2012-2021 Javier Bezos and Johannes L. Braams.
%% Copyright (C) 1989-2012 Johannes L. Braams and
%% any individual authors listed elsewhere in this file.
%% All rights reserved.
%%
%%
%% This file is part of the Babel system.
%% --------------------------------------
%%
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%% http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2003/12/01 or later.
%%
%% This work has the LPPL maintenance status "maintained".
%%
%% The Current Maintainer of this work is Javier Bezos.
%%
%% The list of derived (unpacked) files belonging to the distribution
%% and covered by LPPL is defined by the unpacking scripts (with
%% extension |.ins|) which are part of the distribution.
%%
\ifx\AddBabelHook\@undefined % When plain.def, babel.sty starts
\bbl@trace{Read language.dat}
\ifx\bbl@readstream\@undefined
\csname newread\endcsname\bbl@readstream
\fi
\begingroup
\toks@{}
\count@\z@ % 0=start, 1=0th, 2=normal
\def\bbl@process@line#1#2 #3 #4 {%
\ifx=#1%
\bbl@process@synonym{#2}%
\else
\bbl@process@language{#1#2}{#3}{#4}%
\fi
\ignorespaces}
\def\bbl@manylang{%
\ifnum\bbl@last>\@ne
\bbl@info{Non-standard hyphenation setup}%
\fi
\let\bbl@manylang\relax}
\def\bbl@process@language#1#2#3{%
\ifcase\count@
\@ifundefined{zth@#1}{\count@\tw@}{\count@\@ne}%
\or
\count@\tw@
\fi
\ifnum\count@=\tw@
\expandafter\addlanguage\csname l@#1\endcsname
\language\allocationnumber
\chardef\bbl@last\allocationnumber
\bbl@manylang
\let\bbl@elt\relax
\xdef\bbl@languages{%
\bbl@languages\bbl@elt{#1}{\the\language}{#2}{#3}}%
\fi
\the\toks@
\toks@{}}
\def\bbl@process@synonym@aux#1#2{%
\global\expandafter\chardef\csname l@#1\endcsname#2\relax
\let\bbl@elt\relax
\xdef\bbl@languages{%
\bbl@languages\bbl@elt{#1}{#2}{}{}}}%
\def\bbl@process@synonym#1{%
\ifcase\count@
\toks@\expandafter{\the\toks@\relax\bbl@process@synonym{#1}}%
\or
\@ifundefined{zth@#1}{\bbl@process@synonym@aux{#1}{0}}{}%
\else
\bbl@process@synonym@aux{#1}{\the\bbl@last}%
\fi}
\ifx\bbl@languages\@undefined % Just a (sensible?) guess
\chardef\l@english\z@
\chardef\l@USenglish\z@
\chardef\bbl@last\z@
\global\@namedef{bbl@hyphendata@0}{{hyphen.tex}{}}
\gdef\bbl@languages{%
\bbl@elt{english}{0}{hyphen.tex}{}%
\bbl@elt{USenglish}{0}{}{}}
\else
\global\let\bbl@languages@format\bbl@languages
\def\bbl@elt#1#2#3#4{% Remove all except language 0
\ifnum#2>\z@\else
\noexpand\bbl@elt{#1}{#2}{#3}{#4}%
\fi}%
\xdef\bbl@languages{\bbl@languages}%
\fi
\def\bbl@elt#1#2#3#4{\@namedef{zth@#1}{}} % Define flags
\bbl@languages
\openin\bbl@readstream=language.dat
\ifeof\bbl@readstream
\bbl@warning{I couldn't find language.dat. No additional\\%
patterns loaded. Reported}%
\else
\loop
\endlinechar\m@ne
\read\bbl@readstream to \bbl@line
\endlinechar`\^^M
\if T\ifeof\bbl@readstream F\fi T\relax
\ifx\bbl@line\@empty\else
\edef\bbl@line{\bbl@line\space\space\space}%
\expandafter\bbl@process@line\bbl@line\relax
\fi
\repeat
\fi
\endgroup
\bbl@trace{Macros for reading patterns files}
\def\bbl@get@enc#1:#2:#3\@@@{\def\bbl@hyph@enc{#2}}
\ifx\babelcatcodetablenum\@undefined
\ifx\newcatcodetable\@undefined
\def\babelcatcodetablenum{5211}
\def\bbl@pattcodes{\numexpr\babelcatcodetablenum+1\relax}
\else
\newcatcodetable\babelcatcodetablenum
\newcatcodetable\bbl@pattcodes
\fi
\else
\def\bbl@pattcodes{\numexpr\babelcatcodetablenum+1\relax}
\fi
\def\bbl@luapatterns#1#2{%
\bbl@get@enc#1::\@@@
\setbox\z@\hbox\bgroup
\begingroup
\savecatcodetable\babelcatcodetablenum\relax
\initcatcodetable\bbl@pattcodes\relax
\catcodetable\bbl@pattcodes\relax
\catcode`\#=6 \catcode`\$=3 \catcode`\&=4 \catcode`\^=7
\catcode`\_=8 \catcode`\{=1 \catcode`\}=2 \catcode`\~=13
\catcode`\@=11 \catcode`\^^I=10 \catcode`\^^J=12
\catcode`\<=12 \catcode`\>=12 \catcode`\*=12 \catcode`\.=12
\catcode`\-=12 \catcode`\/=12 \catcode`\[=12 \catcode`\]=12
\catcode`\`=12 \catcode`\'=12 \catcode`\"=12
\input #1\relax
\catcodetable\babelcatcodetablenum\relax
\endgroup
\def\bbl@tempa{#2}%
\ifx\bbl@tempa\@empty\else
\input #2\relax
\fi
\egroup}%
\def\bbl@patterns@lua#1{%
\language=\expandafter\ifx\csname l@#1:\f@encoding\endcsname\relax
\csname l@#1\endcsname
\edef\bbl@tempa{#1}%
\else
\csname l@#1:\f@encoding\endcsname
\edef\bbl@tempa{#1:\f@encoding}%
\fi\relax
\@namedef{lu@texhyphen@loaded@\the\language}{}% Temp
\@ifundefined{bbl@hyphendata@\the\language}%
{\def\bbl@elt##1##2##3##4{%
\ifnum##2=\csname l@\bbl@tempa\endcsname % #2=spanish, dutch:OT1...
\def\bbl@tempb{##3}%
\ifx\bbl@tempb\@empty\else % if not a synonymous
\def\bbl@tempc{{##3}{##4}}%
\fi
\bbl@csarg\xdef{hyphendata@##2}{\bbl@tempc}%
\fi}%
\bbl@languages
\@ifundefined{bbl@hyphendata@\the\language}%
{\bbl@info{No hyphenation patterns were set for\\%
language '\bbl@tempa'. Reported}}%
{\expandafter\expandafter\expandafter\bbl@luapatterns
\csname bbl@hyphendata@\the\language\endcsname}}{}}
\endinput\fi
% Here ends \ifx\AddBabelHook\@undefined
% A few lines are only read by hyphen.cfg
\ifx\DisableBabelHook\@undefined
\AddBabelHook{luatex}{everylanguage}{%
\def\process@language##1##2##3{%
\def\process@line####1####2 ####3 ####4 {}}}
\AddBabelHook{luatex}{loadpatterns}{%
\input #1\relax
\expandafter\gdef\csname bbl@hyphendata@\the\language\endcsname
{{#1}{}}}
\AddBabelHook{luatex}{loadexceptions}{%
\input #1\relax
\def\bbl@tempb##1##2{{##1}{#1}}%
\expandafter\xdef\csname bbl@hyphendata@\the\language\endcsname
{\expandafter\expandafter\expandafter\bbl@tempb
\csname bbl@hyphendata@\the\language\endcsname}}
\endinput\fi
% Here stops reading code for hyphen.cfg
% The following is read the 2nd time it's loaded
\begingroup % TODO - to a lua file
\catcode`\%=12
\catcode`\'=12
\catcode`\"=12
\catcode`\:=12
\directlua{
Babel = Babel or {}
function Babel.bytes(line)
return line:gsub("(.)",
function (chr) return unicode.utf8.char(string.byte(chr)) end)
end
function Babel.begin_process_input()
if luatexbase and luatexbase.add_to_callback then
luatexbase.add_to_callback('process_input_buffer',
Babel.bytes,'Babel.bytes')
else
Babel.callback = callback.find('process_input_buffer')
callback.register('process_input_buffer',Babel.bytes)
end
end
function Babel.end_process_input ()
if luatexbase and luatexbase.remove_from_callback then
luatexbase.remove_from_callback('process_input_buffer','Babel.bytes')
else
callback.register('process_input_buffer',Babel.callback)
end
end
function Babel.addpatterns(pp, lg)
local lg = lang.new(lg)
local pats = lang.patterns(lg) or ''
lang.clear_patterns(lg)
for p in pp:gmatch('[^%s]+') do
ss = ''
for i in string.utfcharacters(p:gsub('%d', '')) do
ss = ss .. '%d?' .. i
end
ss = ss:gsub('^%%d%?%.', '%%.') .. '%d?'
ss = ss:gsub('%.%%d%?$', '%%.')
pats, n = pats:gsub('%s' .. ss .. '%s', ' ' .. p .. ' ')
if n == 0 then
tex.sprint(
[[\string\csname\space bbl@info\endcsname{New pattern: ]]
.. p .. [[}]])
pats = pats .. ' ' .. p
else
tex.sprint(
[[\string\csname\space bbl@info\endcsname{Renew pattern: ]]
.. p .. [[}]])
end
end
lang.patterns(lg, pats)
end
}
\endgroup
\ifx\newattribute\@undefined\else
\newattribute\bbl@attr@locale
\directlua{ Babel.attr_locale = luatexbase.registernumber'bbl@attr@locale' }
\AddBabelHook{luatex}{beforeextras}{%
\setattribute\bbl@attr@locale\localeid}
\fi
\def\BabelStringsDefault{unicode}
\let\luabbl@stop\relax
\AddBabelHook{luatex}{encodedcommands}{%
\def\bbl@tempa{utf8}\def\bbl@tempb{#1}%
\ifx\bbl@tempa\bbl@tempb\else
\directlua{Babel.begin_process_input()}%
\def\luabbl@stop{%
\directlua{Babel.end_process_input()}}%
\fi}%
\AddBabelHook{luatex}{stopcommands}{%
\luabbl@stop
\let\luabbl@stop\relax}
\AddBabelHook{luatex}{patterns}{%
\@ifundefined{bbl@hyphendata@\the\language}%
{\def\bbl@elt##1##2##3##4{%
\ifnum##2=\csname l@#2\endcsname % #2=spanish, dutch:OT1...
\def\bbl@tempb{##3}%
\ifx\bbl@tempb\@empty\else % if not a synonymous
\def\bbl@tempc{{##3}{##4}}%
\fi
\bbl@csarg\xdef{hyphendata@##2}{\bbl@tempc}%
\fi}%
\bbl@languages
\@ifundefined{bbl@hyphendata@\the\language}%
{\bbl@info{No hyphenation patterns were set for\\%
language '#2'. Reported}}%
{\expandafter\expandafter\expandafter\bbl@luapatterns
\csname bbl@hyphendata@\the\language\endcsname}}{}%
\@ifundefined{bbl@patterns@}{}{%
\begingroup
\bbl@xin@{,\number\language,}{,\bbl@pttnlist}%
\ifin@\else
\ifx\bbl@patterns@\@empty\else
\directlua{ Babel.addpatterns(
[[\bbl@patterns@]], \number\language) }%
\fi
\@ifundefined{bbl@patterns@#1}%
\@empty
{\directlua{ Babel.addpatterns(
[[\space\csname bbl@patterns@#1\endcsname]],
\number\language) }}%
\xdef\bbl@pttnlist{\bbl@pttnlist\number\language,}%
\fi
\endgroup}%
\bbl@exp{%
\bbl@ifunset{bbl@prehc@\languagename}{}%
{\\\bbl@ifblank{\bbl@cs{prehc@\languagename}}{}%
{\prehyphenchar=\bbl@cl{prehc}\relax}}}}
\@onlypreamble\babelpatterns
\AtEndOfPackage{%
\newcommand\babelpatterns[2][\@empty]{%
\ifx\bbl@patterns@\relax
\let\bbl@patterns@\@empty
\fi
\ifx\bbl@pttnlist\@empty\else
\bbl@warning{%
You must not intermingle \string\selectlanguage\space and\\%
\string\babelpatterns\space or some patterns will not\\%
be taken into account. Reported}%
\fi
\ifx\@empty#1%
\protected@edef\bbl@patterns@{\bbl@patterns@\space#2}%
\else
\edef\bbl@tempb{\zap@space#1 \@empty}%
\bbl@for\bbl@tempa\bbl@tempb{%
\bbl@fixname\bbl@tempa
\bbl@iflanguage\bbl@tempa{%
\bbl@csarg\protected@edef{patterns@\bbl@tempa}{%
\@ifundefined{bbl@patterns@\bbl@tempa}%
\@empty
{\csname bbl@patterns@\bbl@tempa\endcsname\space}%
#2}}}%
\fi}}
\directlua{
Babel = Babel or {}
Babel.linebreaking = Babel.linebreaking or {}
Babel.linebreaking.before = {}
Babel.linebreaking.after = {}
Babel.locale = {} % Free to use, indexed by \localeid
function Babel.linebreaking.add_before(func)
tex.print([[\noexpand\csname bbl@luahyphenate\endcsname]])
table.insert(Babel.linebreaking.before, func)
end
function Babel.linebreaking.add_after(func)
tex.print([[\noexpand\csname bbl@luahyphenate\endcsname]])
table.insert(Babel.linebreaking.after, func)
end
}
\def\bbl@intraspace#1 #2 #3\@@{%
\directlua{
Babel = Babel or {}
Babel.intraspaces = Babel.intraspaces or {}
Babel.intraspaces['\csname bbl@sbcp@\languagename\endcsname'] = %
{b = #1, p = #2, m = #3}
Babel.locale_props[\the\localeid].intraspace = %
{b = #1, p = #2, m = #3}
}}
\def\bbl@intrapenalty#1\@@{%
\directlua{
Babel = Babel or {}
Babel.intrapenalties = Babel.intrapenalties or {}
Babel.intrapenalties['\csname bbl@sbcp@\languagename\endcsname'] = #1
Babel.locale_props[\the\localeid].intrapenalty = #1
}}
\begingroup
\catcode`\%=12
\catcode`\^=14
\catcode`\'=12
\catcode`\~=12
\gdef\bbl@seaintraspace{^
\let\bbl@seaintraspace\relax
\directlua{
Babel = Babel or {}
Babel.sea_enabled = true
Babel.sea_ranges = Babel.sea_ranges or {}
function Babel.set_chranges (script, chrng)
local c = 0
for s, e in string.gmatch(chrng..' ', '(.-)%.%.(.-)%s') do
Babel.sea_ranges[script..c]={tonumber(s,16), tonumber(e,16)}
c = c + 1
end
end
function Babel.sea_disc_to_space (head)
local sea_ranges = Babel.sea_ranges
local last_char = nil
local quad = 655360 ^% 10 pt = 655360 = 10 * 65536
for item in node.traverse(head) do
local i = item.id
if i == node.id'glyph' then
last_char = item
elseif i == 7 and item.subtype == 3 and last_char
and last_char.char > 0x0C99 then
quad = font.getfont(last_char.font).size
for lg, rg in pairs(sea_ranges) do
if last_char.char > rg[1] and last_char.char < rg[2] then
lg = lg:sub(1, 4) ^% Remove trailing number of, eg, Cyrl1
local intraspace = Babel.intraspaces[lg]
local intrapenalty = Babel.intrapenalties[lg]
local n
if intrapenalty ~= 0 then
n = node.new(14, 0) ^% penalty
n.penalty = intrapenalty
node.insert_before(head, item, n)
end
n = node.new(12, 13) ^% (glue, spaceskip)
node.setglue(n, intraspace.b * quad,
intraspace.p * quad,
intraspace.m * quad)
node.insert_before(head, item, n)
node.remove(head, item)
end
end
end
end
end
}^^
\bbl@luahyphenate}
\catcode`\%=14
\gdef\bbl@cjkintraspace{%
\let\bbl@cjkintraspace\relax
\directlua{
Babel = Babel or {}
require('babel-data-cjk.lua')
Babel.cjk_enabled = true
function Babel.cjk_linebreak(head)
local GLYPH = node.id'glyph'
local last_char = nil
local quad = 655360 % 10 pt = 655360 = 10 * 65536
local last_class = nil
local last_lang = nil
for item in node.traverse(head) do
if item.id == GLYPH then
local lang = item.lang
local LOCALE = node.get_attribute(item,
Babel.attr_locale)
local props = Babel.locale_props[LOCALE]
local class = Babel.cjk_class[item.char].c
if props.cjk_quotes and props.cjk_quotes[item.char] then
class = props.cjk_quotes[item.char]
end
if class == 'cp' then class = 'cl' end % )] as CL
if class == 'id' then class = 'I' end
local br = 0
if class and last_class and Babel.cjk_breaks[last_class][class] then
br = Babel.cjk_breaks[last_class][class]
end
if br == 1 and props.linebreak == 'c' and
lang ~= \the\l@nohyphenation\space and
last_lang ~= \the\l@nohyphenation then
local intrapenalty = props.intrapenalty
if intrapenalty ~= 0 then
local n = node.new(14, 0) % penalty
n.penalty = intrapenalty
node.insert_before(head, item, n)
end
local intraspace = props.intraspace
local n = node.new(12, 13) % (glue, spaceskip)
node.setglue(n, intraspace.b * quad,
intraspace.p * quad,
intraspace.m * quad)
node.insert_before(head, item, n)
end
if font.getfont(item.font) then
quad = font.getfont(item.font).size
end
last_class = class
last_lang = lang
else % if penalty, glue or anything else
last_class = nil
end
end
lang.hyphenate(head)
end
}%
\bbl@luahyphenate}
\gdef\bbl@luahyphenate{%
\let\bbl@luahyphenate\relax
\directlua{
luatexbase.add_to_callback('hyphenate',
function (head, tail)
if Babel.linebreaking.before then
for k, func in ipairs(Babel.linebreaking.before) do
func(head)
end
end
if Babel.cjk_enabled then
Babel.cjk_linebreak(head)
end
lang.hyphenate(head)
if Babel.linebreaking.after then
for k, func in ipairs(Babel.linebreaking.after) do
func(head)
end
end
if Babel.sea_enabled then
Babel.sea_disc_to_space(head)
end
end,
'Babel.hyphenate')
}
}
\endgroup
\def\bbl@provide@intraspace{%
\bbl@ifunset{bbl@intsp@\languagename}{}%
{\expandafter\ifx\csname bbl@intsp@\languagename\endcsname\@empty\else
\bbl@xin@{/c}{/\bbl@cl{lnbrk}}%
\ifin@ % cjk
\bbl@cjkintraspace
\directlua{
Babel = Babel or {}
Babel.locale_props = Babel.locale_props or {}
Babel.locale_props[\the\localeid].linebreak = 'c'
}%
\bbl@exp{\\\bbl@intraspace\bbl@cl{intsp}\\\@@}%
\ifx\bbl@KVP@intrapenalty\@nil
\bbl@intrapenalty0\@@
\fi
\else % sea
\bbl@seaintraspace
\bbl@exp{\\\bbl@intraspace\bbl@cl{intsp}\\\@@}%
\directlua{
Babel = Babel or {}
Babel.sea_ranges = Babel.sea_ranges or {}
Babel.set_chranges('\bbl@cl{sbcp}',
'\bbl@cl{chrng}')
}%
\ifx\bbl@KVP@intrapenalty\@nil
\bbl@intrapenalty0\@@
\fi
\fi
\fi
\ifx\bbl@KVP@intrapenalty\@nil\else
\expandafter\bbl@intrapenalty\bbl@KVP@intrapenalty\@@
\fi}}
\ifnum\bbl@bidimode>100 \ifnum\bbl@bidimode<200
\def\bblar@chars{%
0628,0629,062A,062B,062C,062D,062E,062F,0630,0631,0632,0633,%
0634,0635,0636,0637,0638,0639,063A,063B,063C,063D,063E,063F,%
0640,0641,0642,0643,0644,0645,0646,0647,0649}
\def\bblar@elongated{%
0626,0628,062A,062B,0633,0634,0635,0636,063B,%
063C,063D,063E,063F,0641,0642,0643,0644,0646,%
0649,064A}
\begingroup
\catcode`_=11 \catcode`:=11
\gdef\bblar@nofswarn{\gdef\msg_warning:nnx##1##2##3{}}
\endgroup
\gdef\bbl@arabicjust{%
\let\bbl@arabicjust\relax
\newattribute\bblar@kashida
\directlua{ Babel.attr_kashida = luatexbase.registernumber'bblar@kashida' }%
\bblar@kashida=\z@
\bbl@patchfont{{\bbl@parsejalt}}%
\directlua{
Babel.arabic.elong_map = Babel.arabic.elong_map or {}
Babel.arabic.elong_map[\the\localeid] = {}
luatexbase.add_to_callback('post_linebreak_filter',
Babel.arabic.justify, 'Babel.arabic.justify')
luatexbase.add_to_callback('hpack_filter',
Babel.arabic.justify_hbox, 'Babel.arabic.justify_hbox')
}}%
\def\bblar@fetchjalt#1#2#3#4{%
\bbl@exp{\\\bbl@foreach{#1}}{%
\bbl@ifunset{bblar@JE@##1}%
{\setbox\z@\hbox{^^^^200d\char"##1#2}}%
{\setbox\z@\hbox{^^^^200d\char"\@nameuse{bblar@JE@##1}#2}}%
\directlua{%
local last = nil
for item in node.traverse(tex.box[0].head) do
if item.id == node.id'glyph' and item.char > 0x600 and
not (item.char == 0x200D) then
last = item
end
end
Babel.arabic.#3['##1#4'] = last.char
}}}
\gdef\bbl@parsejalt{%
\ifx\addfontfeature\@undefined\else
\bbl@xin@{/e}{/\bbl@cl{lnbrk}}%
\ifin@
\directlua{%
if Babel.arabic.elong_map[\the\localeid][\fontid\font] == nil then
Babel.arabic.elong_map[\the\localeid][\fontid\font] = {}
tex.print([[\string\csname\space bbl@parsejalti\endcsname]])
end
}%
\fi
\fi}
\gdef\bbl@parsejalti{%
\begingroup
\let\bbl@parsejalt\relax % To avoid infinite loop
\edef\bbl@tempb{\fontid\font}%
\bblar@nofswarn
\bblar@fetchjalt\bblar@elongated{}{from}{}%
\bblar@fetchjalt\bblar@chars{^^^^064a}{from}{a}% Alef maksura
\bblar@fetchjalt\bblar@chars{^^^^0649}{from}{y}% Yeh
\addfontfeature{RawFeature=+jalt}%
% \@namedef{bblar@JE@0643}{06AA}% todo: catch medial kaf
\bblar@fetchjalt\bblar@elongated{}{dest}{}%
\bblar@fetchjalt\bblar@chars{^^^^064a}{dest}{a}%
\bblar@fetchjalt\bblar@chars{^^^^0649}{dest}{y}%
\directlua{%
for k, v in pairs(Babel.arabic.from) do
if Babel.arabic.dest[k] and
not (Babel.arabic.from[k] == Babel.arabic.dest[k]) then
Babel.arabic.elong_map[\the\localeid][\bbl@tempb]
[Babel.arabic.from[k]] = Babel.arabic.dest[k]
end
end
}%
\endgroup}
\begingroup
\catcode`#=11
\catcode`~=11
\directlua{
Babel.arabic = Babel.arabic or {}
Babel.arabic.from = {}
Babel.arabic.dest = {}
Babel.arabic.justify_factor = 0.95
Babel.arabic.justify_enabled = true
function Babel.arabic.justify(head)
if not Babel.arabic.justify_enabled then return head end
for line in node.traverse_id(node.id'hlist', head) do
Babel.arabic.justify_hlist(head, line)
end
return head
end
function Babel.arabic.justify_hbox(head, gc, size, pack)
local has_inf = false
if Babel.arabic.justify_enabled and pack == 'exactly' then
for n in node.traverse_id(12, head) do
if n.stretch_order > 0 then has_inf = true end
end
if not has_inf then
Babel.arabic.justify_hlist(head, nil, gc, size, pack)
end
end
return head
end
function Babel.arabic.justify_hlist(head, line, gc, size, pack)
local d, new
local k_list, k_item, pos_inline
local width, width_new, full, k_curr, wt_pos, goal, shift
local subst_done = false
local elong_map = Babel.arabic.elong_map
local last_line
local GLYPH = node.id'glyph'
local KASHIDA = Babel.attr_kashida
local LOCALE = Babel.attr_locale
if line == nil then
line = {}
line.glue_sign = 1
line.glue_order = 0
line.head = head
line.shift = 0
line.width = size
end
% Exclude last line. todo. But-- it discards one-word lines, too!
% ? Look for glue = 12:15
if (line.glue_sign == 1 and line.glue_order == 0) then
elongs = {} % Stores elongated candidates of each line
k_list = {} % And all letters with kashida
pos_inline = 0 % Not yet used
for n in node.traverse_id(GLYPH, line.head) do
pos_inline = pos_inline + 1 % To find where it is. Not used.
% Elongated glyphs
if elong_map then
local locale = node.get_attribute(n, LOCALE)
if elong_map[locale] and elong_map[locale][n.font] and
elong_map[locale][n.font][n.char] then
table.insert(elongs, {node = n, locale = locale} )
node.set_attribute(n.prev, KASHIDA, 0)
end
end
% Tatwil
if Babel.kashida_wts then
local k_wt = node.get_attribute(n, KASHIDA)
if k_wt > 0 then % todo. parameter for multi inserts
table.insert(k_list, {node = n, weight = k_wt, pos = pos_inline})
end
end
end % of node.traverse_id
if #elongs == 0 and #k_list == 0 then goto next_line end
full = line.width
shift = line.shift
goal = full * Babel.arabic.justify_factor % A bit crude
width = node.dimensions(line.head) % The 'natural' width
% == Elongated ==
% Original idea taken from 'chikenize'
while (#elongs > 0 and width < goal) do
subst_done = true
local x = #elongs
local curr = elongs[x].node
local oldchar = curr.char
curr.char = elong_map[elongs[x].locale][curr.font][curr.char]
width = node.dimensions(line.head) % Check if the line is too wide
% Substitute back if the line would be too wide and break:
if width > goal then
curr.char = oldchar
break
end
% If continue, pop the just substituted node from the list:
table.remove(elongs, x)
end
% == Tatwil ==
if #k_list == 0 then goto next_line end
width = node.dimensions(line.head) % The 'natural' width
k_curr = #k_list
wt_pos = 1
while width < goal do
subst_done = true
k_item = k_list[k_curr].node
if k_list[k_curr].weight == Babel.kashida_wts[wt_pos] then
d = node.copy(k_item)
d.char = 0x0640
line.head, new = node.insert_after(line.head, k_item, d)
width_new = node.dimensions(line.head)
if width > goal or width == width_new then
node.remove(line.head, new) % Better compute before
break
end
width = width_new
end
if k_curr == 1 then
k_curr = #k_list
wt_pos = (wt_pos >= table.getn(Babel.kashida_wts)) and 1 or wt_pos+1
else
k_curr = k_curr - 1
end
end
::next_line::
% Must take into account marks and ins, see luatex manual.
% Have to be executed only if there are changes. Investigate
% what's going on exactly.
if subst_done and not gc then
d = node.hpack(line.head, full, 'exactly')
d.shift = shift
node.insert_before(head, line, d)
node.remove(head, line)
end
end % if process line
end
}
\endgroup
\fi\fi % Arabic just block
\AddBabelHook{babel-fontspec}{afterextras}{\bbl@switchfont}
\AddBabelHook{babel-fontspec}{beforestart}{\bbl@ckeckstdfonts}
\DisableBabelHook{babel-fontspec}
\bbl@trace{Font handling with fontspec}
\ifx\ExplSyntaxOn\@undefined\else
\ExplSyntaxOn
\catcode`\ =10
\def\bbl@loadfontspec{%
\usepackage{fontspec}% TODO. Apply patch always
\expandafter
\def\csname msg~text~>~fontspec/language-not-exist\endcsname##1##2##3##4{%
Font '\l_fontspec_fontname_tl' is using the\\%
default features for language '##1'.\\%
That's usually fine, because many languages\\%
require no specific features, but if the output is\\%
not as expected, consider selecting another font.}
\expandafter
\def\csname msg~text~>~fontspec/no-script\endcsname##1##2##3##4{%
Font '\l_fontspec_fontname_tl' is using the\\%
default features for script '##2'.\\%
That's not always wrong, but if the output is\\%
not as expected, consider selecting another font.}}
\ExplSyntaxOff
\fi
\@onlypreamble\babelfont
\newcommand\babelfont[2][]{% 1=langs/scripts 2=fam
\bbl@foreach{#1}{%
\expandafter\ifx\csname date##1\endcsname\relax
\IfFileExists{babel-##1.tex}%
{\babelprovide{##1}}%
{}%
\fi}%
\edef\bbl@tempa{#1}%
\def\bbl@tempb{#2}% Used by \bbl@bblfont
\ifx\fontspec\@undefined
\bbl@loadfontspec
\fi
\EnableBabelHook{babel-fontspec}% Just calls \bbl@switchfont
\bbl@bblfont}
\newcommand\bbl@bblfont[2][]{% 1=features 2=fontname, @font=rm|sf|tt
\bbl@ifunset{\bbl@tempb family}%
{\bbl@providefam{\bbl@tempb}}%
{}%
% For the default font, just in case:
\bbl@ifunset{bbl@lsys@\languagename}{\bbl@provide@lsys{\languagename}}{}%
\expandafter\bbl@ifblank\expandafter{\bbl@tempa}%
{\bbl@csarg\edef{\bbl@tempb dflt@}{<>{#1}{#2}}% save bbl@rmdflt@
\bbl@exp{%
\let\<bbl@\bbl@tempb dflt@\languagename>\<bbl@\bbl@tempb dflt@>%
\\\bbl@font@set\<bbl@\bbl@tempb dflt@\languagename>%
\<\bbl@tempb default>\<\bbl@tempb family>}}%
{\bbl@foreach\bbl@tempa{% ie bbl@rmdflt@lang / *scrt
\bbl@csarg\def{\bbl@tempb dflt@##1}{<>{#1}{#2}}}}}%
\def\bbl@providefam#1{%
\bbl@exp{%
\\\newcommand\<#1default>{}% Just define it
\\\bbl@add@list\\\bbl@font@fams{#1}%
\\\DeclareRobustCommand\<#1family>{%
\\\not@math@alphabet\<#1family>\relax
% \\\prepare@family@series@update{#1}\<#1default>% TODO. Fails
\\\fontfamily\<#1default>%
\<ifx>\\\UseHooks\\\@undefined\<else>\\\UseHook{#1family}\<fi>%
\\\selectfont}%
\\\DeclareTextFontCommand{\<text#1>}{\<#1family>}}}
\def\bbl@nostdfont#1{%
\bbl@ifunset{bbl@WFF@\f@family}%
{\bbl@csarg\gdef{WFF@\f@family}{}% Flag, to avoid dupl warns
\bbl@infowarn{The current font is not a babel standard family:\\%
#1%
\fontname\font\\%
There is nothing intrinsically wrong with this warning, and\\%
you can ignore it altogether if you do not need these\\%
families. But if they are used in the document, you should be\\%
aware 'babel' will no set Script and Language for them, so\\%
you may consider defining a new family with \string\babelfont.\\%
See the manual for further details about \string\babelfont.\\%
Reported}}
{}}%
\gdef\bbl@switchfont{%
\bbl@ifunset{bbl@lsys@\languagename}{\bbl@provide@lsys{\languagename}}{}%
\bbl@exp{% eg Arabic -> arabic
\lowercase{\edef\\\bbl@tempa{\bbl@cl{sname}}}}%
\bbl@foreach\bbl@font@fams{%
\bbl@ifunset{bbl@##1dflt@\languagename}% (1) language?
{\bbl@ifunset{bbl@##1dflt@*\bbl@tempa}% (2) from script?
{\bbl@ifunset{bbl@##1dflt@}% 2=F - (3) from generic?
{}% 123=F - nothing!
{\bbl@exp{% 3=T - from generic
\global\let\<bbl@##1dflt@\languagename>%
\<bbl@##1dflt@>}}}%
{\bbl@exp{% 2=T - from script
\global\let\<bbl@##1dflt@\languagename>%
\<bbl@##1dflt@*\bbl@tempa>}}}%
{}}% 1=T - language, already defined
\def\bbl@tempa{\bbl@nostdfont{}}%
\bbl@foreach\bbl@font@fams{% don't gather with prev for
\bbl@ifunset{bbl@##1dflt@\languagename}%
{\bbl@cs{famrst@##1}%
\global\bbl@csarg\let{famrst@##1}\relax}%
{\bbl@exp{% order is relevant. TODO: but sometimes wrong!
\\\bbl@add\\\originalTeX{%
\\\bbl@font@rst{\bbl@cl{##1dflt}}%
\<##1default>\<##1family>{##1}}%
\\\bbl@font@set\<bbl@##1dflt@\languagename>% the main part!
\<##1default>\<##1family>}}}%
\bbl@ifrestoring{}{\bbl@tempa}}%
\ifx\f@family\@undefined\else % if latex
\ifcase\bbl@engine % if pdftex
\let\bbl@ckeckstdfonts\relax
\else
\def\bbl@ckeckstdfonts{%
\begingroup
\global\let\bbl@ckeckstdfonts\relax
\let\bbl@tempa\@empty
\bbl@foreach\bbl@font@fams{%
\bbl@ifunset{bbl@##1dflt@}%
{\@nameuse{##1family}%
\bbl@csarg\gdef{WFF@\f@family}{}% Flag
\bbl@exp{\\\bbl@add\\\bbl@tempa{* \<##1family>= \f@family\\\\%
\space\space\fontname\font\\\\}}%
\bbl@csarg\xdef{##1dflt@}{\f@family}%
\expandafter\xdef\csname ##1default\endcsname{\f@family}}%
{}}%
\ifx\bbl@tempa\@empty\else
\bbl@infowarn{The following font families will use the default\\%
settings for all or some languages:\\%
\bbl@tempa
There is nothing intrinsically wrong with it, but\\%
'babel' will no set Script and Language, which could\\%
be relevant in some languages. If your document uses\\%
these families, consider redefining them with \string\babelfont.\\%
Reported}%
\fi
\endgroup}
\fi
\fi
\def\bbl@font@set#1#2#3{% eg \bbl@rmdflt@lang \rmdefault \rmfamily
\bbl@xin@{<>}{#1}%
\ifin@
\bbl@exp{\\\bbl@fontspec@set\\#1\expandafter\@gobbletwo#1\\#3}%
\fi
\bbl@exp{% 'Unprotected' macros return prev values
\def\\#2{#1}% eg, \rmdefault{\bbl@rmdflt@lang}
\\\bbl@ifsamestring{#2}{\f@family}%
{\\#3%
\\\bbl@ifsamestring{\f@series}{\bfdefault}{\\\bfseries}{}%
\let\\\bbl@tempa\relax}%
{}}}
\def\bbl@fontspec@set#1#2#3#4{% eg \bbl@rmdflt@lang fnt-opt fnt-nme \xxfamily
\let\bbl@tempe\bbl@mapselect
\let\bbl@mapselect\relax
\let\bbl@temp@fam#4% eg, '\rmfamily', to be restored below
\let#4\@empty % Make sure \renewfontfamily is valid
\bbl@exp{%
\let\\\bbl@temp@pfam\<\bbl@stripslash#4\space>% eg, '\rmfamily '
\<keys_if_exist:nnF>{fontspec-opentype}{Script/\bbl@cl{sname}}%
{\\\newfontscript{\bbl@cl{sname}}{\bbl@cl{sotf}}}%
\<keys_if_exist:nnF>{fontspec-opentype}{Language/\bbl@cl{lname}}%
{\\\newfontlanguage{\bbl@cl{lname}}{\bbl@cl{lotf}}}%
\\\renewfontfamily\\#4%
[\bbl@cl{lsys},#2]}{#3}% ie \bbl@exp{..}{#3}
\begingroup
#4%
\xdef#1{\f@family}% eg, \bbl@rmdflt@lang{FreeSerif(0)}
\endgroup
\let#4\bbl@temp@fam
\bbl@exp{\let\<\bbl@stripslash#4\space>}\bbl@temp@pfam
\let\bbl@mapselect\bbl@tempe}%
\def\bbl@font@rst#1#2#3#4{%
\bbl@csarg\def{famrst@#4}{\bbl@font@set{#1}#2#3}}
\def\bbl@font@fams{rm,sf,tt}
\newcommand\babelFSstore[2][]{%
\bbl@ifblank{#1}%
{\bbl@csarg\def{sname@#2}{Latin}}%
{\bbl@csarg\def{sname@#2}{#1}}%
\bbl@provide@dirs{#2}%
\bbl@csarg\ifnum{wdir@#2}>\z@
\let\bbl@beforeforeign\leavevmode
\EnableBabelHook{babel-bidi}%
\fi
\bbl@foreach{#2}{%
\bbl@FSstore{##1}{rm}\rmdefault\bbl@save@rmdefault
\bbl@FSstore{##1}{sf}\sfdefault\bbl@save@sfdefault
\bbl@FSstore{##1}{tt}\ttdefault\bbl@save@ttdefault}}
\def\bbl@FSstore#1#2#3#4{%
\bbl@csarg\edef{#2default#1}{#3}%
\expandafter\addto\csname extras#1\endcsname{%
\let#4#3%
\ifx#3\f@family
\edef#3{\csname bbl@#2default#1\endcsname}%
\fontfamily{#3}\selectfont
\else
\edef#3{\csname bbl@#2default#1\endcsname}%
\fi}%
\expandafter\addto\csname noextras#1\endcsname{%
\ifx#3\f@family
\fontfamily{#4}\selectfont
\fi
\let#3#4}}
\let\bbl@langfeatures\@empty
\def\babelFSfeatures{% make sure \fontspec is redefined once
\let\bbl@ori@fontspec\fontspec
\renewcommand\fontspec[1][]{%
\bbl@ori@fontspec[\bbl@langfeatures##1]}
\let\babelFSfeatures\bbl@FSfeatures
\babelFSfeatures}
\def\bbl@FSfeatures#1#2{%
\expandafter\addto\csname extras#1\endcsname{%
\babel@save\bbl@langfeatures
\edef\bbl@langfeatures{#2,}}}
\directlua{
Babel.script_blocks = {
['dflt'] = {},
['Arab'] = {{0x0600, 0x06FF}, {0x08A0, 0x08FF}, {0x0750, 0x077F},
{0xFE70, 0xFEFF}, {0xFB50, 0xFDFF}, {0x1EE00, 0x1EEFF}},
['Armn'] = {{0x0530, 0x058F}},
['Beng'] = {{0x0980, 0x09FF}},
['Cher'] = {{0x13A0, 0x13FF}, {0xAB70, 0xABBF}},
['Copt'] = {{0x03E2, 0x03EF}, {0x2C80, 0x2CFF}, {0x102E0, 0x102FF}},
['Cyrl'] = {{0x0400, 0x04FF}, {0x0500, 0x052F}, {0x1C80, 0x1C8F},
{0x2DE0, 0x2DFF}, {0xA640, 0xA69F}},
['Deva'] = {{0x0900, 0x097F}, {0xA8E0, 0xA8FF}},
['Ethi'] = {{0x1200, 0x137F}, {0x1380, 0x139F}, {0x2D80, 0x2DDF},
{0xAB00, 0xAB2F}},
['Geor'] = {{0x10A0, 0x10FF}, {0x2D00, 0x2D2F}},
% Don't follow strictly Unicode, which places some Coptic letters in
% the 'Greek and Coptic' block
['Grek'] = {{0x0370, 0x03E1}, {0x03F0, 0x03FF}, {0x1F00, 0x1FFF}},
['Hans'] = {{0x2E80, 0x2EFF}, {0x3000, 0x303F}, {0x31C0, 0x31EF},
{0x3300, 0x33FF}, {0x3400, 0x4DBF}, {0x4E00, 0x9FFF},
{0xF900, 0xFAFF}, {0xFE30, 0xFE4F}, {0xFF00, 0xFFEF},
{0x20000, 0x2A6DF}, {0x2A700, 0x2B73F},
{0x2B740, 0x2B81F}, {0x2B820, 0x2CEAF},
{0x2CEB0, 0x2EBEF}, {0x2F800, 0x2FA1F}},
['Hebr'] = {{0x0590, 0x05FF}},
['Jpan'] = {{0x3000, 0x303F}, {0x3040, 0x309F}, {0x30A0, 0x30FF},
{0x4E00, 0x9FAF}, {0xFF00, 0xFFEF}},
['Khmr'] = {{0x1780, 0x17FF}, {0x19E0, 0x19FF}},
['Knda'] = {{0x0C80, 0x0CFF}},
['Kore'] = {{0x1100, 0x11FF}, {0x3000, 0x303F}, {0x3130, 0x318F},
{0x4E00, 0x9FAF}, {0xA960, 0xA97F}, {0xAC00, 0xD7AF},
{0xD7B0, 0xD7FF}, {0xFF00, 0xFFEF}},
['Laoo'] = {{0x0E80, 0x0EFF}},
['Latn'] = {{0x0000, 0x007F}, {0x0080, 0x00FF}, {0x0100, 0x017F},
{0x0180, 0x024F}, {0x1E00, 0x1EFF}, {0x2C60, 0x2C7F},
{0xA720, 0xA7FF}, {0xAB30, 0xAB6F}},
['Mahj'] = {{0x11150, 0x1117F}},
['Mlym'] = {{0x0D00, 0x0D7F}},
['Mymr'] = {{0x1000, 0x109F}, {0xAA60, 0xAA7F}, {0xA9E0, 0xA9FF}},
['Orya'] = {{0x0B00, 0x0B7F}},
['Sinh'] = {{0x0D80, 0x0DFF}, {0x111E0, 0x111FF}},
['Syrc'] = {{0x0700, 0x074F}, {0x0860, 0x086F}},
['Taml'] = {{0x0B80, 0x0BFF}},
['Telu'] = {{0x0C00, 0x0C7F}},
['Tfng'] = {{0x2D30, 0x2D7F}},
['Thai'] = {{0x0E00, 0x0E7F}},
['Tibt'] = {{0x0F00, 0x0FFF}},
['Vaii'] = {{0xA500, 0xA63F}},
['Yiii'] = {{0xA000, 0xA48F}, {0xA490, 0xA4CF}}
}
Babel.script_blocks.Cyrs = Babel.script_blocks.Cyrl
Babel.script_blocks.Hant = Babel.script_blocks.Hans
Babel.script_blocks.Kana = Babel.script_blocks.Jpan
function Babel.locale_map(head)
if not Babel.locale_mapped then return head end
local LOCALE = Babel.attr_locale
local GLYPH = node.id('glyph')
local inmath = false
local toloc_save
for item in node.traverse(head) do
local toloc
if not inmath and item.id == GLYPH then
% Optimization: build a table with the chars found
if Babel.chr_to_loc[item.char] then
toloc = Babel.chr_to_loc[item.char]
else
for lc, maps in pairs(Babel.loc_to_scr) do
for _, rg in pairs(maps) do
if item.char >= rg[1] and item.char <= rg[2] then
Babel.chr_to_loc[item.char] = lc
toloc = lc
break
end
end
end
end
% Now, take action, but treat composite chars in a different
% fashion, because they 'inherit' the previous locale. Not yet
% optimized.
if not toloc and
(item.char >= 0x0300 and item.char <= 0x036F) or
(item.char >= 0x1AB0 and item.char <= 0x1AFF) or
(item.char >= 0x1DC0 and item.char <= 0x1DFF) then
toloc = toloc_save
end
if toloc and toloc > -1 then
if Babel.locale_props[toloc].lg then
item.lang = Babel.locale_props[toloc].lg
node.set_attribute(item, LOCALE, toloc)
end
if Babel.locale_props[toloc]['/'..item.font] then
item.font = Babel.locale_props[toloc]['/'..item.font]
end
toloc_save = toloc
end
elseif not inmath and item.id == 7 then
item.replace = item.replace and Babel.locale_map(item.replace)
item.pre = item.pre and Babel.locale_map(item.pre)
item.post = item.post and Babel.locale_map(item.post)
elseif item.id == node.id'math' then
inmath = (item.subtype == 0)
end
end
return head
end
}
\newcommand\babelcharproperty[1]{%
\count@=#1\relax
\ifvmode
\expandafter\bbl@chprop
\else
\bbl@error{\string\babelcharproperty\space can be used only in\\%
vertical mode (preamble or between paragraphs)}%
{See the manual for futher info}%
\fi}
\newcommand\bbl@chprop[3][\the\count@]{%
\@tempcnta=#1\relax
\bbl@ifunset{bbl@chprop@#2}%
{\bbl@error{No property named '#2'. Allowed values are\\%
direction (bc), mirror (bmg), and linebreak (lb)}%
{See the manual for futher info}}%
{}%
\loop
\bbl@cs{chprop@#2}{#3}%
\ifnum\count@<\@tempcnta
\advance\count@\@ne
\repeat}
\def\bbl@chprop@direction#1{%
\directlua{
Babel.characters[\the\count@] = Babel.characters[\the\count@] or {}
Babel.characters[\the\count@]['d'] = '#1'
}}
\let\bbl@chprop@bc\bbl@chprop@direction
\def\bbl@chprop@mirror#1{%
\directlua{
Babel.characters[\the\count@] = Babel.characters[\the\count@] or {}
Babel.characters[\the\count@]['m'] = '\number#1'
}}
\let\bbl@chprop@bmg\bbl@chprop@mirror
\def\bbl@chprop@linebreak#1{%
\directlua{
Babel.cjk_characters[\the\count@] = Babel.cjk_characters[\the\count@] or {}
Babel.cjk_characters[\the\count@]['c'] = '#1'
}}
\let\bbl@chprop@lb\bbl@chprop@linebreak
\def\bbl@chprop@locale#1{%
\directlua{
Babel.chr_to_loc = Babel.chr_to_loc or {}
Babel.chr_to_loc[\the\count@] =
\bbl@ifblank{#1}{-1000}{\the\bbl@cs{id@@#1}}\space
}}
\directlua{
Babel.nohyphenation = \the\l@nohyphenation
}
\begingroup
\catcode`\~=12
\catcode`\%=12
\catcode`\&=14
\gdef\babelprehyphenation{&%
\@ifnextchar[{\bbl@settransform{0}}{\bbl@settransform{0}[]}}
\gdef\babelposthyphenation{&%
\@ifnextchar[{\bbl@settransform{1}}{\bbl@settransform{1}[]}}
\gdef\bbl@settransform#1[#2]#3#4#5{&%
\ifcase#1
\bbl@activateprehyphen
\else
\bbl@activateposthyphen
\fi
\begingroup
\def\babeltempa{\bbl@add@list\babeltempb}&%
\let\babeltempb\@empty
\def\bbl@tempa{#5}&%
\bbl@replace\bbl@tempa{,}{ ,}&% TODO. Ugly trick to preserve {}
\expandafter\bbl@foreach\expandafter{\bbl@tempa}{&%
\bbl@ifsamestring{##1}{remove}&%
{\bbl@add@list\babeltempb{nil}}&%
{\directlua{
local rep = [=[##1]=]
rep = rep:gsub('^%s*(remove)%s*$', 'remove = true')
rep = rep:gsub('^%s*(insert)%s*,', 'insert = true, ')
rep = rep:gsub('(string)%s*=%s*([^%s,]*)', Babel.capture_func)
if #1 == 0 then
rep = rep:gsub('(space)%s*=%s*([%d%.]+)%s+([%d%.]+)%s+([%d%.]+)',
'space = {' .. '%2, %3, %4' .. '}')
rep = rep:gsub('(spacefactor)%s*=%s*([%d%.]+)%s+([%d%.]+)%s+([%d%.]+)',
'spacefactor = {' .. '%2, %3, %4' .. '}')
rep = rep:gsub('(kashida)%s*=%s*([^%s,]*)', Babel.capture_kashida)
else
rep = rep:gsub( '(no)%s*=%s*([^%s,]*)', Babel.capture_func)
rep = rep:gsub( '(pre)%s*=%s*([^%s,]*)', Babel.capture_func)
rep = rep:gsub( '(post)%s*=%s*([^%s,]*)', Babel.capture_func)
end
tex.print([[\string\babeltempa{{]] .. rep .. [[}}]])
}}}&%
\let\bbl@kv@attribute\relax
\let\bbl@kv@label\relax
\bbl@forkv{#2}{\bbl@csarg\edef{kv@##1}{##2}}&%
\ifx\bbl@kv@attribute\relax\else
\edef\bbl@kv@attribute{\expandafter\bbl@stripslash\bbl@kv@attribute}&%
\fi
\directlua{
local lbkr = Babel.linebreaking.replacements[#1]
local u = unicode.utf8
local id, attr, label
if #1 == 0 then
id = \the\csname bbl@id@@#3\endcsname\space
else
id = \the\csname l@#3\endcsname\space
end
\ifx\bbl@kv@attribute\relax
attr = -1
\else
attr = luatexbase.registernumber'\bbl@kv@attribute'
\fi
\ifx\bbl@kv@label\relax\else &% Same refs:
label = [==[\bbl@kv@label]==]
\fi
&% Convert pattern:
local patt = string.gsub([==[#4]==], '%s', '')
if #1 == 0 then
patt = string.gsub(patt, '|', ' ')
end
if not u.find(patt, '()', nil, true) then
patt = '()' .. patt .. '()'
end
if #1 == 1 then
patt = string.gsub(patt, '%(%)%^', '^()')
patt = string.gsub(patt, '%$%(%)', '()$')
end
patt = u.gsub(patt, '{(.)}',
function (n)
return '%' .. (tonumber(n) and (tonumber(n)+1) or n)
end)
patt = u.gsub(patt, '{(%x%x%x%x+)}',
function (n)
return u.gsub(u.char(tonumber(n, 16)), '(%p)', '%%%1')
end)
lbkr[id] = lbkr[id] or {}
table.insert(lbkr[id],
{ label=label, attr=attr, pattern=patt, replace={\babeltempb} })
}&%
\endgroup}
\endgroup
\def\bbl@activateposthyphen{%
\let\bbl@activateposthyphen\relax
\directlua{
require('babel-transforms.lua')
Babel.linebreaking.add_after(Babel.post_hyphenate_replace)
}}
\def\bbl@activateprehyphen{%
\let\bbl@activateprehyphen\relax
\directlua{
require('babel-transforms.lua')
Babel.linebreaking.add_before(Babel.pre_hyphenate_replace)
}}
\def\bbl@activate@preotf{%
\let\bbl@activate@preotf\relax % only once
\directlua{
Babel = Babel or {}
%
function Babel.pre_otfload_v(head)
if Babel.numbers and Babel.digits_mapped then
head = Babel.numbers(head)
end
if Babel.bidi_enabled then
head = Babel.bidi(head, false, dir)
end
return head
end
%
function Babel.pre_otfload_h(head, gc, sz, pt, dir)
if Babel.numbers and Babel.digits_mapped then
head = Babel.numbers(head)
end
if Babel.bidi_enabled then
head = Babel.bidi(head, false, dir)
end
return head
end
%
luatexbase.add_to_callback('pre_linebreak_filter',
Babel.pre_otfload_v,
'Babel.pre_otfload_v',
luatexbase.priority_in_callback('pre_linebreak_filter',
'luaotfload.node_processor') or nil)
%
luatexbase.add_to_callback('hpack_filter',
Babel.pre_otfload_h,
'Babel.pre_otfload_h',
luatexbase.priority_in_callback('hpack_filter',
'luaotfload.node_processor') or nil)
}}
\ifnum\bbl@bidimode>100 \ifnum\bbl@bidimode<200
\let\bbl@beforeforeign\leavevmode
\AtEndOfPackage{\EnableBabelHook{babel-bidi}}
\RequirePackage{luatexbase}
\bbl@activate@preotf
\directlua{
require('babel-data-bidi.lua')
\ifcase\expandafter\@gobbletwo\the\bbl@bidimode\or
require('babel-bidi-basic.lua')
\or
require('babel-bidi-basic-r.lua')
\fi}
% TODO - to locale_props, not as separate attribute
\newattribute\bbl@attr@dir
\directlua{ Babel.attr_dir = luatexbase.registernumber'bbl@attr@dir' }
% TODO. I don't like it, hackish:
\bbl@exp{\output{\bodydir\pagedir\the\output}}
\AtEndOfPackage{\EnableBabelHook{babel-bidi}}
\fi\fi
\chardef\bbl@thetextdir\z@
\chardef\bbl@thepardir\z@
\def\bbl@getluadir#1{%
\directlua{
if tex.#1dir == 'TLT' then
tex.sprint('0')
elseif tex.#1dir == 'TRT' then
tex.sprint('1')
end}}
\def\bbl@setluadir#1#2#3{% 1=text/par.. 2=\textdir.. 3=0 lr/1 rl
\ifcase#3\relax
\ifcase\bbl@getluadir{#1}\relax\else
#2 TLT\relax
\fi
\else
\ifcase\bbl@getluadir{#1}\relax
#2 TRT\relax
\fi
\fi}
\def\bbl@textdir#1{%
\bbl@setluadir{text}\textdir{#1}%
\chardef\bbl@thetextdir#1\relax
\setattribute\bbl@attr@dir{\numexpr\bbl@thepardir*3+#1}}
\def\bbl@pardir#1{%
\bbl@setluadir{par}\pardir{#1}%
\chardef\bbl@thepardir#1\relax}
\def\bbl@bodydir{\bbl@setluadir{body}\bodydir}
\def\bbl@pagedir{\bbl@setluadir{page}\pagedir}
\def\bbl@dirparastext{\pardir\the\textdir\relax}% %%%%
\ifnum\bbl@bidimode>\z@
\def\bbl@mathboxdir{%
\ifcase\bbl@thetextdir\relax
\everyhbox{\bbl@mathboxdir@aux L}%
\else
\everyhbox{\bbl@mathboxdir@aux R}%
\fi}
\def\bbl@mathboxdir@aux#1{%
\@ifnextchar\egroup{}{\textdir T#1T\relax}}
\frozen@everymath\expandafter{%
\expandafter\bbl@mathboxdir\the\frozen@everymath}
\frozen@everydisplay\expandafter{%
\expandafter\bbl@mathboxdir\the\frozen@everydisplay}
\fi
\def\bbl@truellap{%s
\ifcase\bbl@attr@dir\expandafter\llap\else\expandafter\rlap\fi}
\def\bbl@truerlap{%
\ifcase\bbl@attr@dir\expandafter\rlap\else\expandafter\llap\fi}
\bbl@trace{Redefinitions for bidi layout}
\ifnum\bbl@bidimode>\z@
\AtBeginDocument{% amsmath
\ifx\place@tag\@undefined\else
\bbl@sreplace\place@tag{\llap}{\bbl@truellap}%
\bbl@sreplace\place@tag@gather{\llap}{\bbl@truellap}%
\bbl@sreplace\place@tag{\rlap}{\bbl@truerlap}%
\bbl@sreplace\place@tag@gather{\rlap}{\bbl@truerlap}%
\fi}
\ifx\AddToHook\@undefined\else
\AddToHook{env/equation/before}{\pardir TLT }{}
\fi
\ifx\@eqnnum\@undefined\else
\ifx\bbl@attr@dir\@undefined\else
\bbl@xin@{,leqno,}{,\@classoptionslist,}%
\ifin@
\bbl@sreplace\@eqnnum{\rlap}{\bbl@leqno@aux}
\def\bbl@leqno@aux#1{%
\bbl@truerlap{%
\ifcase\bbl@attr@dir
#1%
\else
\bbl@textdir\@ne
#1%
\hskip-\displaywidth
\fi}}
\else
\bbl@exp{%
\def\\\@eqnnum{{%
\<ifcase>\\\bbl@attr@dir\<else>\\\bbl@textdir\@ne\<fi>%
\\\bbl@ifsamestring{\\\@currenvir}{equation}%
{}{\\\bbl@truellap}{\[@eqnnum]}}}}
\fi
\fi
\fi
\fi
\ifx\bbl@opt@layout\@nnil\endinput\fi % if no layout
\ifnum\bbl@bidimode>\z@
\def\bbl@nextfake#1{% non-local changes, use always inside a group!
\bbl@exp{%
\mathdir\the\bodydir
#1% Once entered in math, set boxes to restore values
\<ifmmode>%
\everyvbox{%
\the\everyvbox
\bodydir\the\bodydir
\mathdir\the\mathdir
\everyhbox{\the\everyhbox}%
\everyvbox{\the\everyvbox}}%
\everyhbox{%
\the\everyhbox
\bodydir\the\bodydir
\mathdir\the\mathdir
\everyhbox{\the\everyhbox}%
\everyvbox{\the\everyvbox}}%
\<fi>}}%
\def\@hangfrom#1{%
\setbox\@tempboxa\hbox{{#1}}%
\hangindent\wd\@tempboxa
\ifnum\bbl@getluadir{page}=\bbl@getluadir{par}\else
\shapemode\@ne
\fi
\noindent\box\@tempboxa}
\fi
\IfBabelLayout{tabular}
{\let\bbl@OL@@tabular\@tabular
\bbl@replace\@tabular{$}{\bbl@nextfake$}%
\let\bbl@NL@@tabular\@tabular
\AtBeginDocument{%
\ifx\bbl@NL@@tabular\@tabular\else
\bbl@replace\@tabular{$}{\bbl@nextfake$}%
\let\bbl@NL@@tabular\@tabular
\fi}}
{}
\IfBabelLayout{lists}
{\let\bbl@OL@list\list
\bbl@sreplace\list{\parshape}{\bbl@listparshape}%
\let\bbl@NL@list\list
\def\bbl@listparshape#1#2#3{%
\parshape #1 #2 #3 %
\ifnum\bbl@getluadir{page}=\bbl@getluadir{par}\else
\shapemode\tw@
\fi}}
{}
\IfBabelLayout{graphics}
{\let\bbl@pictresetdir\relax
\def\bbl@pictsetdir#1{%
\ifcase\bbl@thetextdir
\let\bbl@pictresetdir\relax
\else
\ifcase#1\bodydir TLT % Remember this sets the inner boxes
\or\textdir TLT
\else\bodydir TLT \textdir TLT
\fi
% \(text|par)dir required in pgf:
\def\bbl@pictresetdir{\bodydir TRT\pardir TRT\textdir TRT\relax}%
\fi}%
\ifx\AddToHook\@undefined\else
\AddToHook{env/picture/begin}{\bbl@pictsetdir\tw@}%
\directlua{
Babel.get_picture_dir = true
Babel.picture_has_bidi = 0
function Babel.picture_dir (head)
if not Babel.get_picture_dir then return head end
for item in node.traverse(head) do
if item.id == node.id'glyph' then
local itemchar = item.char
% TODO. Copypaste pattern from Babel.bidi (-r)
local chardata = Babel.characters[itemchar]
local dir = chardata and chardata.d or nil
if not dir then
for nn, et in ipairs(Babel.ranges) do
if itemchar < et[1] then
break
elseif itemchar <= et[2] then
dir = et[3]
break
end
end
end
if dir and (dir == 'al' or dir == 'r') then
Babel.picture_has_bidi = 1
end
end
end
return head
end
luatexbase.add_to_callback("hpack_filter", Babel.picture_dir,
"Babel.picture_dir")
}%
\AtBeginDocument{%
\long\def\put(#1,#2)#3{%
\@killglue
% Try:
\ifx\bbl@pictresetdir\relax
\def\bbl@tempc{0}%
\else
\directlua{
Babel.get_picture_dir = true
Babel.picture_has_bidi = 0
}%
\setbox\z@\hb@xt@\z@{%
\@defaultunitsset\@tempdimc{#1}\unitlength
\kern\@tempdimc
#3\hss}%
\edef\bbl@tempc{\directlua{tex.print(Babel.picture_has_bidi)}}%
\fi
% Do:
\@defaultunitsset\@tempdimc{#2}\unitlength
\raise\@tempdimc\hb@xt@\z@{%
\@defaultunitsset\@tempdimc{#1}\unitlength
\kern\@tempdimc
{\ifnum\bbl@tempc>\z@\bbl@pictresetdir\fi#3}\hss}%
\ignorespaces}%
\MakeRobust\put}%
\fi
\AtBeginDocument
{\ifx\pgfpicture\@undefined\else % TODO. Allow deactivate?
\ifx\AddToHook\@undefined
\bbl@sreplace\pgfpicture{\pgfpicturetrue}%
{\bbl@pictsetdir\z@\pgfpicturetrue}%
\else
\AddToHook{env/pgfpicture/begin}{\bbl@pictsetdir\@ne}%
\fi
\bbl@add\pgfinterruptpicture{\bbl@pictresetdir}%
\bbl@add\pgfsys@beginpicture{\bbl@pictsetdir\z@}%
\fi
\ifx\tikzpicture\@undefined\else
\ifx\AddToHook\@undefined\else
\AddToHook{env/tikzpicture/begin}{\bbl@pictsetdir\z@}%
\fi
\bbl@add\tikz@atbegin@node{\bbl@pictresetdir}%
\bbl@sreplace\tikz{\begingroup}{\begingroup\bbl@pictsetdir\tw@}%
\fi
\ifx\AddToHook\@undefined\else
\ifx\tcolorbox\@undefined\else
\AddToHook{env/tcolorbox/begin}{\bbl@pictsetdir\@ne}%
\bbl@sreplace\tcb@savebox
{\ignorespaces}{\ignorespaces\bbl@pictresetdir}%
\ifx\tikzpicture@tcb@hooked\@undefined\else
\bbl@sreplace\tikzpicture@tcb@hooked{\noexpand\tikzpicture}%
{\textdir TLT\noexpand\tikzpicture}%
\fi
\fi
\fi
}}
{}
\IfBabelLayout{counters}%
{\let\bbl@OL@@textsuperscript\@textsuperscript
\bbl@sreplace\@textsuperscript{\m@th}{\m@th\mathdir\pagedir}%
\let\bbl@latinarabic=\@arabic
\let\bbl@OL@@arabic\@arabic
\def\@arabic#1{\babelsublr{\bbl@latinarabic#1}}%
\@ifpackagewith{babel}{bidi=default}%
{\let\bbl@asciiroman=\@roman
\let\bbl@OL@@roman\@roman
\def\@roman#1{\babelsublr{\ensureascii{\bbl@asciiroman#1}}}%
\let\bbl@asciiRoman=\@Roman
\let\bbl@OL@@roman\@Roman
\def\@Roman#1{\babelsublr{\ensureascii{\bbl@asciiRoman#1}}}%
\let\bbl@OL@labelenumii\labelenumii
\def\labelenumii{)\theenumii(}%
\let\bbl@OL@p@enumiii\p@enumiii
\def\p@enumiii{\p@enumii)\theenumii(}}{}}{}
\bbl@trace{Bidi footnotes}
\ifnum\bbl@bidimode>\z@
\def\bbl@footnote#1#2#3{%
\@ifnextchar[%
{\bbl@footnote@o{#1}{#2}{#3}}%
{\bbl@footnote@x{#1}{#2}{#3}}}
\long\def\bbl@footnote@x#1#2#3#4{%
\bgroup
\select@language@x{\bbl@main@language}%
\bbl@fn@footnote{#2#1{\ignorespaces#4}#3}%
\egroup}
\long\def\bbl@footnote@o#1#2#3[#4]#5{%
\bgroup
\select@language@x{\bbl@main@language}%
\bbl@fn@footnote[#4]{#2#1{\ignorespaces#5}#3}%
\egroup}
\def\bbl@footnotetext#1#2#3{%
\@ifnextchar[%
{\bbl@footnotetext@o{#1}{#2}{#3}}%
{\bbl@footnotetext@x{#1}{#2}{#3}}}
\long\def\bbl@footnotetext@x#1#2#3#4{%
\bgroup
\select@language@x{\bbl@main@language}%
\bbl@fn@footnotetext{#2#1{\ignorespaces#4}#3}%
\egroup}
\long\def\bbl@footnotetext@o#1#2#3[#4]#5{%
\bgroup
\select@language@x{\bbl@main@language}%
\bbl@fn@footnotetext[#4]{#2#1{\ignorespaces#5}#3}%
\egroup}
\def\BabelFootnote#1#2#3#4{%
\ifx\bbl@fn@footnote\@undefined
\let\bbl@fn@footnote\footnote
\fi
\ifx\bbl@fn@footnotetext\@undefined
\let\bbl@fn@footnotetext\footnotetext
\fi
\bbl@ifblank{#2}%
{\def#1{\bbl@footnote{\@firstofone}{#3}{#4}}
\@namedef{\bbl@stripslash#1text}%
{\bbl@footnotetext{\@firstofone}{#3}{#4}}}%
{\def#1{\bbl@exp{\\\bbl@footnote{\\\foreignlanguage{#2}}}{#3}{#4}}%
\@namedef{\bbl@stripslash#1text}%
{\bbl@exp{\\\bbl@footnotetext{\\\foreignlanguage{#2}}}{#3}{#4}}}}
\fi
\IfBabelLayout{footnotes}%
{\let\bbl@OL@footnote\footnote
\BabelFootnote\footnote\languagename{}{}%
\BabelFootnote\localfootnote\languagename{}{}%
\BabelFootnote\mainfootnote{}{}{}}
{}
\IfBabelLayout{extras}%
{\let\bbl@OL@underline\underline
\bbl@sreplace\underline{$\@@underline}{\bbl@nextfake$\@@underline}%
\let\bbl@OL@LaTeX2e\LaTeX2e
\DeclareRobustCommand{\LaTeXe}{\mbox{\m@th
\if b\expandafter\@car\f@series\@nil\boldmath\fi
\babelsublr{%
\LaTeX\kern.15em2\bbl@nextfake$_{\textstyle\varepsilon}$}}}}
{}
\endinput
%%
%% End of file `luababel.def'.
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