diff options
Diffstat (limited to 'tex/context/base/mkiv/scrp-eth.lua')
| -rw-r--r-- | tex/context/base/mkiv/scrp-eth.lua | 86 |
1 files changed, 15 insertions, 71 deletions
diff --git a/tex/context/base/mkiv/scrp-eth.lua b/tex/context/base/mkiv/scrp-eth.lua index 43cb2ff6a..f6a994b88 100644 --- a/tex/context/base/mkiv/scrp-eth.lua +++ b/tex/context/base/mkiv/scrp-eth.lua @@ -12,71 +12,16 @@ if not modules then modules = { } end modules ['scrp-eth'] = { local nuts = nodes.nuts local getnext = nuts.getnext -local getfont = nuts.getfont -local getid = nuts.getid +local ischar = nuts.ischar local getattr = nuts.getattr -local insert_node_before = nuts.insert_before - -local nodepool = nuts.pool - -local new_glue = nodepool.glue -local new_penalty = nodepool.penalty - local nodecodes = nodes.nodecodes local glyph_code = nodecodes.glyph local a_scriptstatus = attributes.private('scriptstatus') -local a_scriptinjection = attributes.private('scriptinjection') -local categorytonumber = scripts.categorytonumber local numbertocategory = scripts.numbertocategory -local hash = scripts.hash -local numbertodataset = scripts.numbertodataset - -local fonthashes = fonts.hashes -local parameters = fonthashes.parameters - -local space, stretch, shrink, lastfont - -local inter_character_space_factor = 1 -local inter_character_stretch_factor = 1 -local inter_character_shrink_factor = 1 - -local function space_glue(current) - local data = numbertodataset[getattr(current,a_scriptinjection)] - if data then - inter_character_space_factor = data.inter_character_space_factor or 1 - inter_character_stretch_factor = data.inter_character_stretch_factor or 1 - inter_character_shrink_factor = data.inter_character_shrink_factor or 1 - end - local font = getfont(current) - if lastfont ~= font then - local pf = parameters[font] - space = pf.space - stretch = pf.space_stretch - shrink = pf.space_shrink - lastfont = font - end - return new_glue( - inter_character_space_factor * space, - inter_character_stretch_factor * stretch, - inter_character_shrink_factor * shrink - ) -end - -local function insert_space(head,current) - insert_node_before(head,current,space_glue(current)) -end - -local function insert_zerowidthspace(head,current) - insert_node_before(head,current,new_glue(0)) -end - -local function insert_nobreakspace(head,current) - insert_node_before(head,current,new_penalty(10000)) - insert_node_before(head,current,space_glue(current)) -end +local inserters = scripts.inserters -- syllable [zerowidthspace] syllable -- syllable [zerowidthspace] word @@ -88,21 +33,22 @@ end -- sentence [space] word -- sentence [space] sentence + local injectors = { -- [previous] [current] ethiopic_syllable = { - ethiopic_syllable = insert_zerowidthspace, - ethiopic_word = insert_nobreakspace, - ethiopic_sentence = insert_nobreakspace, + ethiopic_syllable = inserters.zerowidthspace_before, + ethiopic_word = inserters.nobreakspace_before, + ethiopic_sentence = inserters.nobreakspace_before, }, ethiopic_word = { - ethiopic_syllable = insert_space, - ethiopic_word = insert_space, - ethiopic_sentence = insert_space, + ethiopic_syllable = inserters.space_before, + ethiopic_word = inserters.space_before, + ethiopic_sentence = inserters.space_before, }, ethiopic_sentence = { - ethiopic_syllable = insert_space, - ethiopic_word = insert_space, - ethiopic_sentence = insert_space, + ethiopic_syllable = inserters.space_before, + ethiopic_word = inserters.space_before, + ethiopic_sentence = inserters.space_before, }, } @@ -111,10 +57,10 @@ local function process(head,first,last) local injector = false local current = first while current do - local id = getid(current) - if id == glyph_code then + local char, id = ischar(current) + if char then local scriptstatus = getattr(current,a_scriptstatus) - local category = numbertocategory[scriptstatus] + local category = numbertocategory[scriptstatus] if injector then local action = injector[category] if action then @@ -122,8 +68,6 @@ local function process(head,first,last) end end injector = injectors[category] - else - -- nothing yet end if current == last then break |