Handle many TODOs
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Marcel Fabian Krüger
parent
098811063c
commit
165c6bd9ad
157
mlist_to_mml.lua
157
mlist_to_mml.lua
@ -9,6 +9,9 @@ local fence_sub = node.subtypes'fence'
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local nodes_to_table
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local function sub_style(s) return s//4*2+5 end
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local function sup_style(s) return s//4*2+4+s%2 end
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-- We ignore large_... since they aren't used for modern fonts
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local function delim_to_table(delim)
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if not delim then return end
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@ -16,7 +19,7 @@ local function delim_to_table(delim)
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return {[0] = 'mo', utf8.char(delim.small_char), ['tex:family'] = fam ~= 0 and fam or nil }
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end
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local function kernel_to_table(kernel)
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local function kernel_to_table(kernel, cur_style)
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if not kernel then return end
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local id = kernel.id
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if id == math_char_t then
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@ -27,15 +30,15 @@ local function kernel_to_table(kernel)
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elseif id == sub_box_t then
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return {[0] = 'mi', {[0] = 'mglyph', ['tex:box'] = kernel.list}}
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elseif id == sub_mlist_t then
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return nodes_to_table(kernel.list)
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return nodes_to_table(kernel.list, cur_style)
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else
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error'confusion'
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end
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end
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local function do_sub_sup(t, n)
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sub = kernel_to_table(n.sub)
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sup = kernel_to_table(n.sup)
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local function do_sub_sup(t, n, cur_style)
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local sub = kernel_to_table(n.sub, sub_style(cur_style))
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local sup = kernel_to_table(n.sup, sup_style(cur_style))
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if sub then
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if sup then
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return {[0] = 'msubsup', t, sub, sup}
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@ -49,14 +52,11 @@ local function do_sub_sup(t, n)
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end
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end
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local function noad_to_table(noad, sub)
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local function noad_to_table(noad, sub, cur_style)
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local class = noad_sub[sub]
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local nucleus = kernel_to_table(noad.nucleus)
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local nucleus = kernel_to_table(noad.nucleus, class == 'over' and cur_style//2*2+1 or cur_style)
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if class == 'ord' then
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-- elseif class == 'opdisplaylimits' then
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-- elseif class == 'oplimits' then
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-- elseif class == 'opnolimits' then
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elseif class == 'bin' or class == 'rel' or class == 'open'
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elseif class == 'opdisplaylimits' or class == 'oplimits' or class == 'opnolimits' or class == 'bin' or class == 'rel' or class == 'open'
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or class == 'close' or class == 'punct' or class == 'inner' then
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if nucleus[0] == 'mrow' then
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-- TODO
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@ -64,19 +64,73 @@ local function noad_to_table(noad, sub)
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nucleus[0] = 'mo'
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end
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nucleus['tex:class'] = class
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-- elseif class == 'under' then
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-- elseif class == 'over' then
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-- elseif class == 'vcenter' then
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else
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-- error[[confusion]]
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if (noad.sup or noad.sub) and (class == 'opdisplaylimits' or class == 'oplimits') then
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nucleus.movablelimits = class == 'opdisplaylimits'
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local sub = kernel_to_table(noad.sub, sub_style(cur_style))
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local sup = kernel_to_table(noad.sup, sup_style(cur_style))
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return {[0] = sup and (sub and 'munderover' or 'mover') or 'munder',
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nucleus,
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sub or sup,
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sub and sup,
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}
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end
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elseif class == 'under' then
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return {[0] = 'munder',
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nucleus,
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{[0] = 'mo', '_',},
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}
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elseif class == 'over' then
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return {[0] = 'mover',
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nucleus,
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{[0] = 'mo', '\u{203E}',},
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}
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elseif class == 'vcenter' then
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nucleus['tex:TODO'] = class
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else
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error[[confusion]]
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end
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return do_sub_sup(nucleus, noad)
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return do_sub_sup(nucleus, noad, cur_style)
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end
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local function radical_to_table(radical, sub)
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local function accent_to_table(accent, sub, cur_style)
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local nucleus = kernel_to_table(accent.nucleus, cur_style//2*2+1)
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local top_acc = kernel_to_table(accent.accent, cur_style)
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local bot_acc = kernel_to_table(accent.bot_accent, cur_style)
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if top_acc then
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top_acc[0] = 'mo'
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if sub & 1 == 1 then
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top_acc.stretchy = 'false'
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end
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end
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if bot_acc then
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bot_acc[0] = 'mo'
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if sub & 2 == 2 then
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bot_acc.stretchy = 'false'
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end
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end
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return {[0] = top_acc and (bot_acc and 'munderover' or 'mover') or 'munder',
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nucleus,
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bot_acc or top_acc,
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bot_acc and top_acc,
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}
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end
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local style_table = {
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display = {displaystyle = "true", scriptlevel = "0"},
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text = {displaystyle = "false", scriptlevel = "0"},
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script = {displaystyle = "false", scriptlevel = "1"},
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scriptscript = {displaystyle = "false", scriptlevel = "2"},
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}
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style_table.crampeddisplay, style_table.crampedtext,
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style_table.crampedscript, style_table.crampedscriptscript =
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style_table.display, style_table.text,
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style_table.script, style_table.scriptscript
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local function radical_to_table(radical, sub, cur_style)
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local kind = radical_sub[sub]
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local nucleus = kernel_to_table(radical.nucleus)
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local nucleus = kernel_to_table(radical.nucleus, cur_style//2*2+1)
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local left = delim_to_table(radical.left)
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local elem
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if kind == 'radical' or kind == 'uradical' then
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@ -96,14 +150,13 @@ local function radical_to_table(radical, sub)
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else
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error[[confusion]]
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end
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return do_sub_sup(elem, radical)
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return do_sub_sup(elem, radical, cur_style)
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end
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local function fraction_to_table(fraction, sub)
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local num = kernel_to_table(fraction.num)
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local denom = kernel_to_table(fraction.denom)
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local function fraction_to_table(fraction, sub, cur_style)
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local num = kernel_to_table(fraction.num, sup_style(cur_style))
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local denom = kernel_to_table(fraction.denom, sub_style(cur_style))
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local left = delim_to_table(fraction.left)
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-- local middle = delim_to_table(fraction.middle)
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local right = delim_to_table(fraction.right)
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local mfrac = {[0] = 'mfrac',
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linethickness = fraction.width and fraction.width == 0 and 0 or nil,
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@ -127,46 +180,58 @@ local function fraction_to_table(fraction, sub)
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end
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end
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local function fence_to_table(fraction, sub)
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error[[TODO]]
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return {
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kind = fence_sub[sub],
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}
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local function fence_to_table(fence, sub, cur_style)
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local delim = delim_to_table(fence.delimiter)
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delim.stretchy = 'true'
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delim.fence = 'true'
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return delim
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end
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function nodes_to_table(head)
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function nodes_to_table(head, cur_style)
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local t = {[0] = "mrow"}
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local result = t
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for n, id, sub in node.traverse(head) do
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if id == noad_t then
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t[#t+1] = noad_to_table(n, sub)
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t[#t+1] = noad_to_table(n, sub, cur_style)
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elseif id == accent_t then
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print(n)
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t[#t+1] = {[0] = 'TODO', accent = n}
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t[#t+1] = accent_to_table(n, sub, cur_style)
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elseif id == style_t then
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print(n)
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t[#t+1] = {[0] = 'TODO', style = n}
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if #t ~= 0 then
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local new_t = {[0] = 'mstyle'}
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t[#t+1] = new_t
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t = new_t
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end
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if sub < 2 then
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t.displaystyle, t.scriptlevel = true, 0
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else
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t.displaystyle, t.scriptlevel = false, sub//2 - 1
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end
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cur_style = sub
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elseif id == choice_t then
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print(n)
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t[#t+1] = {[0] = 'TODO', choice = n}
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local size = cur_style//2
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t[#t+1] = nodes_to_table(n[size == 0 and 'display' or size == 1 and 'text'
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or size == 2 and 'script'
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or size == 3 and 'scriptscript' or assert(false)], 2*size)
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elseif id == radical_t then
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t[#t+1] = radical_to_table(n, sub)
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t[#t+1] = radical_to_table(n, sub, cur_style)
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elseif id == fraction_t then
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t[#t+1] = fraction_to_table(n, sub)
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t[#t+1] = fraction_to_table(n, sub, cur_style)
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elseif id == fence_t then
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print(n)
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t[#t+1] = {[0] = 'TODO', fence = n}
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t[#t+1] = fence_to_table(n, sub, cur_style)
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else
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print(n)
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t[#t+1] = n
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t[#t+1] = {[0] = 'tex:TODO', other = n}
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end
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end
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return t
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return result
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end
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return function(head)
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local result = nodes_to_table(head)
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return function(head, style)
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local result = nodes_to_table(head, style or 0)
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result[0] = 'math'
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result.xmlns = 'http://www.w3.org/1998/Math/MathML'
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result['xmlns:tex'] = 'http://typesetting.eu/2021/LuaMathML'
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if style == 2 then
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result.display = 'block'
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end
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return result
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end
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@ -4,10 +4,11 @@ local function show(t) return print(inspect(t)) end
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local mlist_to_table = require'mlist_to_mml'
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local write_xml = require'write_xml'
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luatexbase.add_to_callback('pre_mlist_to_hlist_filter', function(mlist)
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luatexbase.add_to_callback('pre_mlist_to_hlist_filter', function(mlist, style)
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print'\n\n'
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local xml = mlist_to_table(mlist)
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show(write_xml(xml))
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local xml = mlist_to_table(mlist, style == 'display' and 2 or 0)
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print(write_xml(xml))
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-- print(write_xml(xml, '\n'))
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print'\n'
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return true
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end, 'dump_list')
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@ -9,6 +9,6 @@
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x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}.
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\]
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\[
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x = \longdivision{5}
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\sum_a\underline c\dot bc'
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\]
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\end{document}
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@ -11,13 +11,14 @@ local escapes = {
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['&'] = "&",
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}
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local function escape_text(text)
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return text:gsub('("<>&)', escapes)
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return string.gsub(tostring(text), '("<>&)', escapes)
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end
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local function write_elem(tree)
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local function write_elem(tree, indent)
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if not tree[0] then print('ERR', require'inspect'(tree)) end
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local escaped_name = escape_name(assert(tree[0]))
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local out = "<" .. escaped_name
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if indent then out = indent .. out end
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for attr, val in next, tree do if type(attr) == 'string' then
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out = out .. ' ' .. escape_name(attr) .. '="' .. escape_text(val) .. '"'
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end end
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@ -25,13 +26,18 @@ local function write_elem(tree)
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return out .. '/>'
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end
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out = out .. '>'
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local inner_indent = indent and indent .. ' '
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for _, elem in ipairs(tree) do
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if type(elem) == 'string' then
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if inner_indent then
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out = out .. inner_indent
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end
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out = out .. escape_text(elem)
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else
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out = out .. write_elem(elem)
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out = out .. write_elem(elem, inner_indent)
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end
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end
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if indent then out = out .. indent end
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return out .. '</' .. escaped_name .. '>'
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end
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