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-rw-r--r--tex/context/base/x-mathml.lua1658
1 files changed, 829 insertions, 829 deletions
diff --git a/tex/context/base/x-mathml.lua b/tex/context/base/x-mathml.lua
index 31483bbea..676b9a7c6 100644
--- a/tex/context/base/x-mathml.lua
+++ b/tex/context/base/x-mathml.lua
@@ -1,829 +1,829 @@
-if not modules then modules = { } end modules ['x-mathml'] = {
- version = 1.001,
- comment = "companion to x-mathml.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
--- This needs an upgrade to the latest greatest mechanisms.
-
-local type, next = type, next
-local format, lower, find, gsub = string.format, string.lower, string.find, string.gsub
-local strip = string.strip
-local xmlsprint, xmlcprint, xmltext, xmlcontent = xml.sprint, xml.cprint, xml.text, xml.content
-local getid = lxml.getid
-local utfchar, utfcharacters, utfvalues = utf.char, utf.characters, utf.values
-local lpegmatch = lpeg.match
-
-local mathml = { }
-moduledata.mathml = mathml
-lxml.mathml = mathml -- for the moment
-
--- an alternative is to remap to private codes, where we can have
--- different properties .. to be done; this will move and become
--- generic; we can then make the private ones active in math mode
-
--- todo: handle opening/closing mo's here ... presentation mml is such a mess ...
-
-characters.registerentities()
-
-local doublebar = utfchar(0x2016)
-
-local n_replacements = {
--- [" "] = utfchar(0x2002), -- "&textspace;" -> tricky, no &; in mkiv
- ["."] = "{.}",
- [","] = "{,}",
- [" "] = "",
-}
-
-local l_replacements = { -- in main table
- ["|"] = "\\mmlleftdelimiter\\vert",
- ["{"] = "\\mmlleftdelimiter\\lbrace",
- ["("] = "\\mmlleftdelimiter(",
- ["["] = "\\mmlleftdelimiter[",
- ["<"] = "\\mmlleftdelimiter<",
- [doublebar] = "\\mmlleftdelimiter\\Vert",
-}
-local r_replacements = { -- in main table
- ["|"] = "\\mmlrightdelimiter\\vert",
- ["}"] = "\\mmlrightdelimiter\\rbrace",
- [")"] = "\\mmlrightdelimiter)",
- ["]"] = "\\mmlrightdelimiter]",
- [">"] = "\\mmlrightdelimiter>",
- [doublebar] = "\\mmlrightdelimiter\\Vert",
-}
-
--- todo: play with asciimode and avoid mmlchar
-
-local o_replacements = { -- in main table
- ["@l"] = "\\mmlleftdelimiter.",
- ["@r"] = "\\mmlrightdelimiter.",
- ["{"] = "\\mmlleftdelimiter \\lbrace",
- ["}"] = "\\mmlrightdelimiter\\rbrace",
- ["|"] = "\\mmlleftorrightdelimiter\\vert",
- [doublebar] = "\\mmlleftorrightdelimiter\\Vert",
- ["("] = "\\mmlleftdelimiter(",
- [")"] = "\\mmlrightdelimiter)",
- ["["] = "\\mmlleftdelimiter[",
- ["]"] = "\\mmlrightdelimiter]",
- -- ["<"] = "\\mmlleftdelimiter<",
- -- [">"] = "\\mmlrightdelimiter>",
- ["#"] = "\\mmlchar{35}",
- ["$"] = "\\mmlchar{36}", -- $
- ["%"] = "\\mmlchar{37}",
- ["&"] = "\\mmlchar{38}",
- ["^"] = "\\mmlchar{94}{}", -- strange, sometimes luatex math sees the char instead of \char
- ["_"] = "\\mmlchar{95}{}", -- so we need the {}
- ["~"] = "\\mmlchar{126}",
- [" "] = "",
- ["°"] = "^\\circ", -- hack
-
- -- [utfchar(0xF103C)] = "\\mmlleftdelimiter<",
- [utfchar(0xF1026)] = "\\mmlchar{38}",
- -- [utfchar(0xF103E)] = "\\mmlleftdelimiter>",
-
-}
-
-local simpleoperatorremapper = utf.remapper(o_replacements)
-
---~ languages.data.labels.functions
-
-local i_replacements = {
- ["sin"] = "\\mathopnolimits{sin}",
- ["cos"] = "\\mathopnolimits{cos}",
- ["abs"] = "\\mathopnolimits{abs}",
- ["arg"] = "\\mathopnolimits{arg}",
- ["codomain"] = "\\mathopnolimits{codomain}",
- ["curl"] = "\\mathopnolimits{curl}",
- ["determinant"] = "\\mathopnolimits{det}",
- ["divergence"] = "\\mathopnolimits{div}",
- ["domain"] = "\\mathopnolimits{domain}",
- ["gcd"] = "\\mathopnolimits{gcd}",
- ["grad"] = "\\mathopnolimits{grad}",
- ["identity"] = "\\mathopnolimits{id}",
- ["image"] = "\\mathopnolimits{image}",
- ["lcm"] = "\\mathopnolimits{lcm}",
- ["lim"] = "\\mathopnolimits{lim}",
- ["max"] = "\\mathopnolimits{max}",
- ["median"] = "\\mathopnolimits{median}",
- ["min"] = "\\mathopnolimits{min}",
- ["mode"] = "\\mathopnolimits{mode}",
- ["mod"] = "\\mathopnolimits{mod}",
- ["polar"] = "\\mathopnolimits{Polar}",
- ["exp"] = "\\mathopnolimits{exp}",
- ["ln"] = "\\mathopnolimits{ln}",
- ["log"] = "\\mathopnolimits{log}",
- ["sin"] = "\\mathopnolimits{sin}",
- ["arcsin"] = "\\mathopnolimits{arcsin}",
- ["sinh"] = "\\mathopnolimits{sinh}",
- ["arcsinh"] = "\\mathopnolimits{arcsinh}",
- ["cos"] = "\\mathopnolimits{cos}",
- ["arccos"] = "\\mathopnolimits{arccos}",
- ["cosh"] = "\\mathopnolimits{cosh}",
- ["arccosh"] = "\\mathopnolimits{arccosh}",
- ["tan"] = "\\mathopnolimits{tan}",
- ["arctan"] = "\\mathopnolimits{arctan}",
- ["tanh"] = "\\mathopnolimits{tanh}",
- ["arctanh"] = "\\mathopnolimits{arctanh}",
- ["cot"] = "\\mathopnolimits{cot}",
- ["arccot"] = "\\mathopnolimits{arccot}",
- ["coth"] = "\\mathopnolimits{coth}",
- ["arccoth"] = "\\mathopnolimits{arccoth}",
- ["csc"] = "\\mathopnolimits{csc}",
- ["arccsc"] = "\\mathopnolimits{arccsc}",
- ["csch"] = "\\mathopnolimits{csch}",
- ["arccsch"] = "\\mathopnolimits{arccsch}",
- ["sec"] = "\\mathopnolimits{sec}",
- ["arcsec"] = "\\mathopnolimits{arcsec}",
- ["sech"] = "\\mathopnolimits{sech}",
- ["arcsech"] = "\\mathopnolimits{arcsech}",
- [" "] = "",
-
- ["false"] = "{\\mr false}",
- ["notanumber"] = "{\\mr NaN}",
- ["otherwise"] = "{\\mr otherwise}",
- ["true"] = "{\\mr true}",
- ["declare"] = "{\\mr declare}",
- ["as"] = "{\\mr as}",
-}
-
--- we could use a metatable or when accessing fallback on the
--- key but at least we now have an overview
-
-local csymbols = {
- arith1 = {
- lcm = "lcm",
- big_lcm = "lcm",
- gcd = "gcd",
- big_gcd = "big_gcd",
- plus = "plus",
- unary_minus = "minus",
- minus = "minus",
- times = "times",
- divide = "divide",
- power = "power",
- abs = "abs",
- root = "root",
- sum = "sum",
- product = "product",
- },
- fns = {
- domain = "domain",
- range = "codomain",
- image = "image",
- identity = "ident",
- -- left_inverse = "",
- -- right_inverse = "",
- inverse = "inverse",
- left_compose = "compose",
- lambda = "labmda",
- },
- linalg1 = {
- vectorproduct = "vectorproduct",
- scalarproduct = "scalarproduct",
- outerproduct = "outerproduct",
- transpose = "transpose",
- determinant = "determinant",
- vector_selector = "selector",
- -- matrix_selector = "matrix_selector",
- },
- logic1 = {
- equivalent = "equivalent",
- ["not"] = "not",
- ["and"] = "and",
- -- big_and = "",
- ["xor"] = "xor",
- -- big_xor = "",
- ["or"] = "or",
- -- big-or = "",
- implies = "implies",
- ["true"] = "true",
- ["false"] = "false",
- },
- nums1 = {
- -- based_integer = "based_integer"
- rational = "rational",
- inifinity = "infinity",
- e = "expenonentiale",
- i = "imaginaryi",
- pi = "pi",
- gamma = "gamma",
- NaN = "NaN",
- },
- relation1 = {
- eq = "eq",
- lt = "lt",
- gt = "gt",
- neq = "neq",
- leq = "leq",
- geq = "geq",
- approx = "approx",
- },
- set1 = {
- cartesian_product = "cartesianproduct",
- empty_set = "emptyset",
- map = "map",
- size = "card",
- -- suchthat = "suchthat",
- set = "set",
- intersect = "intersect",
- -- big_intersect = "",
- union = "union",
- -- big_union = "",
- setdiff = "setdiff",
- subset = "subset",
- ["in"] = "in",
- notin = "notin",
- prsubset = "prsubset",
- notsubset = "notsubset",
- notprsubset = "notprsubset",
- },
- veccalc1 = {
- divergence = "divergence",
- grad = "grad",
- curl = "curl",
- laplacian = "laplacian",
- Laplacian = "laplacian",
- },
- calculus1 = {
- diff = "diff",
- -- nthdiff = "",
- partialdiff = "partialdiff",
- int = "int",
- -- defint = "defint",
- },
- integer1 = {
- factorof = "factorof",
- factorial = "factorial",
- quotient = "quotient",
- remainder = "rem",
- },
- linalg2 = {
- vector = "vector",
- matrix = "matrix",
- matrixrow = "matrixrow",
- },
- mathmkeys = {
- -- equiv = "",
- -- contentequiv = "",
- -- contentequiv_strict = "",
- },
- rounding1 = {
- ceiling = "ceiling",
- floor = "floor",
- -- trunc = "trunc",
- -- round = "round",
- },
- setname1 = {
- P = "primes",
- N = "naturalnumbers",
- Z = "integers",
- rationals = "rationals",
- R = "reals",
- complexes = "complexes",
- },
- complex1 = {
- -- complex_cartesian = "complex_cartesian", -- ci ?
- real = "real",
- imaginary = "imaginary",
- -- complex_polar = "complex_polar", -- ci ?
- argument = "arg",
- conjugate = "conjugate",
- },
- interval1 = { -- not an apply
- -- integer_interval = "integer_interval",
- interval = "interval",
- interval_oo = { tag = "interval", closure = "open" },
- interval_cc = { tag = "interval", closure = "closed" },
- interval_oc = { tag = "interval", closure = "open-closed" },
- interval_co = { tag = "interval", closure = "closed-open" },
- },
- linalg3 = {
- -- vector = "vector.column",
- -- matrixcolumn = "matrixcolumn",
- -- matrix = "matrix.column",
- },
- minmax1 = {
- min = "min",
- -- big_min = "",
- max = "max",
- -- big_max = "",
- },
- piece1 = {
- piecewise = "piecewise",
- piece = "piece",
- otherwise = "otherwise",
- },
- error1 = {
- -- unhandled_symbol = "",
- -- unexpected_symbol = "",
- -- unsupported_CD = "",
- },
- limit1 = {
- -- limit = "limit",
- -- both_sides = "both_sides",
- -- above = "above",
- -- below = "below",
- -- null = "null",
- tendsto = "tendsto",
- },
- list1 = {
- -- map = "",
- -- suchthat = "",
- -- list = "list",
- },
- multiset1 = {
- size = { tag = "card", type = "multiset" },
- cartesian_product = { tag = "cartesianproduct", type = "multiset" },
- empty_set = { tag = "emptyset", type = "multiset" },
- -- multi_set = { tag = "multiset", type = "multiset" },
- intersect = { tag = "intersect", type = "multiset" },
- -- big_intersect = "",
- union = { tag = "union", type = "multiset" },
- -- big_union = "",
- setdiff = { tag = "setdiff", type = "multiset" },
- subset = { tag = "subset", type = "multiset" },
- ["in"] = { tag = "in", type = "multiset" },
- notin = { tag = "notin", type = "multiset" },
- prsubset = { tag = "prsubset", type = "multiset" },
- notsubset = { tag = "notsubset", type = "multiset" },
- notprsubset = { tag = "notprsubset", type = "multiset" },
- },
- quant1 = {
- forall = "forall",
- exists = "exists",
- },
- s_dist = {
- -- mean = "mean.dist",
- -- sdev = "sdev.dist",
- -- variance = "variance.dist",
- -- moment = "moment.dist",
- },
- s_data = {
- mean = "mean",
- sdev = "sdev",
- variance = "vriance",
- mode = "mode",
- median = "median",
- moment = "moment",
- },
- transc1 = {
- log = "log",
- ln = "ln",
- exp = "exp",
- sin = "sin",
- cos = "cos",
- tan = "tan",
- sec = "sec",
- csc = "csc",
- cot = "cot",
- sinh = "sinh",
- cosh = "cosh",
- tanh = "tanh",
- sech = "sech",
- csch = "cscs",
- coth = "coth",
- arcsin = "arcsin",
- arccos = "arccos",
- arctan = "arctan",
- arcsec = "arcsec",
- arcscs = "arccsc",
- arccot = "arccot",
- arcsinh = "arcsinh",
- arccosh = "arccosh",
- arctanh = "arstanh",
- arcsech = "arcsech",
- arccsch = "arccsch",
- arccoth = "arccoth",
- },
-}
-
-function xml.functions.remapmmlcsymbol(e)
- local at = e.at
- local cd = at.cd
- if cd then
- cd = csymbols[cd]
- if cd then
- local tx = e.dt[1]
- if tx and tx ~= "" then
- local tg = cd[tx]
- if tg then
- at.cd = nil
- at.cdbase = nil
- e.dt = { }
- if type(tg) == "table" then
- for k, v in next, tg do
- if k == "tag" then
- e.tg = v
- else
- at[k] = v
- end
- end
- else
- e.tg = tg
- end
- end
- end
- end
- end
-end
-
-function xml.functions.remapmmlbind(e)
- e.tg = "apply"
-end
-
-function xml.functions.remapopenmath(e)
- local tg = e.tg
- if tg == "OMOBJ" then
- e.tg = "math"
- elseif tg == "OMA" then
- e.tg = "apply"
- elseif tg == "OMB" then
- e.tg = "apply"
- elseif tg == "OMS" then
- local at = e.at
- e.tg = "csymbol"
- e.dt = { at.name or "unknown" }
- at.name = nil
- elseif tg == "OMV" then
- local at = e.at
- e.tg = "ci"
- e.dt = { at.name or "unknown" }
- at.name = nil
- elseif tg == "OMI" then
- e.tg = "ci"
- end
- e.rn = "mml"
-end
-
-function mathml.checked_operator(str)
- context(simpleoperatorremapper(str))
-end
-
-function mathml.stripped(str)
- context(strip(str))
-end
-
-function mathml.mn(id,pattern)
- -- maybe at some point we need to interpret the number, but
- -- currently we assume an upright font
- local str = xmlcontent(getid(id)) or ""
- local rep = gsub(str,"&.-;","")
- local rep = gsub(rep,"(%s+)",utfchar(0x205F)) -- medspace e.g.: twenty one (nbsp is not seen)
- local rep = gsub(rep,".",n_replacements)
- context.mn(rep)
-end
-
-function mathml.mo(id)
- local str = xmlcontent(getid(id)) or ""
- local rep = gsub(str,"&.-;","") -- todo
- context(simpleoperatorremapper(rep))
-end
-
-function mathml.mi(id)
- -- we need to strip comments etc .. todo when reading in tree
- local e = getid(id)
- local str = e.dt
- if type(str) == "string" then
- local n = #str
- if n == 0 then
- -- nothing to do
- elseif n == 1 then
- local str = gsub(str[1],"&.-;","") -- bah
- local rep = i_replacements[str]
- if not rep then
- rep = gsub(str,".",i_replacements)
- end
- context(rep)
- -- context.mi(rep)
- else
- context.xmlflush(id) -- xmlsprint or so
- end
- else
- context.xmlflush(id) -- xmlsprint or so
- end
-end
-
-function mathml.mfenced(id) -- multiple separators
- id = getid(id)
- local left, right, separators = id.at.open or "(", id.at.close or ")", id.at.separators or ","
- local l, r = l_replacements[left], r_replacements[right]
- context.enabledelimiter()
- if l then
- context(l_replacements[left] or o_replacements[left] or "")
- else
- context(o_replacements["@l"])
- context(left)
- end
- context.disabledelimiter()
- local collected = lxml.filter(id,"/*") -- check the *
- if collected then
- local n = #collected
- if n == 0 then
- -- skip
- elseif n == 1 then
- xmlsprint(collected[1]) -- to be checked
- else
- local t = utf.split(separators,true)
- for i=1,n do
- xmlsprint(collected[i]) -- to be checked
- if i < n then
- local m = t[i] or t[#t] or ""
- if m == "|" then
- m = "\\enabledelimiter\\middle|\\relax\\disabledelimiter"
- elseif m == doublebar then
- m = "\\enabledelimiter\\middle|\\relax\\disabledelimiter"
- elseif m == "{" then
- m = "\\{"
- elseif m == "}" then
- m = "\\}"
- end
- context(m)
- end
- end
- end
- end
- context.enabledelimiter()
- if r then
- context(r_replacements[right] or o_replacements[right] or "")
- else
- context(right)
- context(o_replacements["@r"])
- end
- context.disabledelimiter()
-end
-
---~ local function flush(e,tag,toggle)
---~ if toggle then
---~ context("^{")
---~ else
---~ context("_{")
---~ end
---~ if tag == "none" then
---~ context("{}")
---~ else
---~ xmlsprint(e.dt)
---~ end
---~ if not toggle then
---~ context("}")
---~ else
---~ context("}{}")
---~ end
---~ return not toggle
---~ end
-
-local function flush(e,tag,toggle)
- if tag == "none" then
- -- if not toggle then
- context("{}") -- {} starts a new ^_ set
- -- end
- elseif toggle then
- context("^{")
- xmlsprint(e.dt)
- context("}{}") -- {} starts a new ^_ set
- else
- context("_{")
- xmlsprint(e.dt)
- context("}")
- end
- return not toggle
-end
-
-function mathml.mmultiscripts(id)
- local done, toggle = false, false
- for e in lxml.collected(id,"/*") do
- local tag = e.tg
- if tag == "mprescripts" then
- context("{}")
- done = true
- elseif done then
- toggle = flush(e,tag,toggle)
- end
- end
- local done, toggle = false, false
- for e in lxml.collected(id,"/*") do
- local tag = e.tg
- if tag == "mprescripts" then
- break
- elseif done then
- toggle = flush(e,tag,toggle)
- else
- xmlsprint(e.dt)
- done = true
- end
- end
-end
-
-local columnalignments = {
- left = "flushleft",
- right = "flushright",
- center = "middle",
-}
-
-local rowalignments = {
- top = "high",
- bottom = "low",
- center = "lohi",
- baseline = "top",
- axis = "lohi",
-}
-
-local frametypes = {
- none = "off",
- solid = "on",
- dashed = "on",
-}
-
--- crazy element ... should be a proper structure instead of such a mess
-
-function mathml.mcolumn(root)
- root = getid(root)
- local matrix, numbers = { }, 0
- local function collect(m,e)
- local tag = e.tg
- if tag == "mi" or tag == "mn" or tag == "mo" or tag == "mtext" then
- local str = xmltext(e)
- str = gsub(str,"&.-;","")
- for s in utfcharacters(str) do
- m[#m+1] = { tag, s }
- end
- if tag == "mn" then
- local n = utf.len(str)
- if n > numbers then
- numbers = n
- end
- end
- elseif tag == "mspace" or tag == "mline" then
- local str = e.at.spacing or ""
- for s in utfcharacters(str) do
- m[#m+1] = { tag, s }
- end
- -- elseif tag == "mline" then
- -- m[#m+1] = { tag, e }
- end
- end
- for e in lxml.collected(root,"/*") do
- local m = { }
- matrix[#matrix+1] = m
- if e.tg == "mrow" then
- -- only one level
- for e in lxml.collected(e,"/*") do
- collect(m,e)
- end
- else
- collect(m,e)
- end
- end
- context.halign()
- context.bgroup()
- context([[\hss\startimath\alignmark\stopimath\aligntab\startimath\alignmark\stopimath\cr]])
- for i=1,#matrix do
- local m = matrix[i]
- local mline = true
- for j=1,#m do
- if m[j][1] ~= "mline" then
- mline = false
- break
- end
- end
- if mline then
- context.noalign([[\obeydepth\nointerlineskip]])
- end
- for j=1,#m do
- local mm = m[j]
- local tag, chr = mm[1], mm[2]
- if tag == "mline" then
- -- This code is under construction ... I need some real motivation
- -- to deal with this kind of crap.
---~ local n, p = true, true
---~ for c=1,#matrix do
---~ local mc = matrix[c][j]
---~ if mc then
---~ mc = mc[2]
---~ if type(mc) ~= "string" then
---~ n, p = false, false
---~ break
---~ elseif find(mc,"^[%d ]$") then -- rangecheck is faster
---~ -- digit
---~ elseif not find(mc,"^[%.%,]$") then -- rangecheck is faster
---~ -- punctuation
---~ else
---~ n = false
---~ break
---~ end
---~ end
---~ end
---~ if n then
---~ chr = "\\mmlmcolumndigitrule"
---~ elseif p then
---~ chr = "\\mmlmcolumnpunctuationrule"
---~ else
---~ chr = "\\mmlmcolumnsymbolrule" -- should be widest char
---~ end
- chr = "\\hrulefill"
- elseif tag == "mspace" then
- chr = "\\mmlmcolumndigitspace" -- utfchar(0x2007)
- end
- if j == numbers + 1 then
- context("\\aligntab")
- end
- local nchr = n_replacements[chr]
- context(nchr or chr)
- end
- context.crcr()
- end
- context.egroup()
-end
-
-local spacesplitter = lpeg.tsplitat(" ")
-
-function mathml.mtable(root)
- -- todo: align, rowspacing, columnspacing, rowlines, columnlines
- root = getid(root)
- local at = root.at
- local rowalign = at.rowalign
- local columnalign = at.columnalign
- local frame = at.frame
- local rowaligns = rowalign and lpegmatch(spacesplitter,rowalign)
- local columnaligns = columnalign and lpegmatch(spacesplitter,columnalign)
- local frames = frame and lpegmatch(spacesplitter,frame)
- local framespacing = at.framespacing or "0pt"
- local framespacing = at.framespacing or "-\\ruledlinewidth" -- make this an option
-
- context.bTABLE { frame = frametypes[frame or "none"] or "off", offset = framespacing }
- for e in lxml.collected(root,"/(mml:mtr|mml:mlabeledtr)") do
- context.bTR()
- local at = e.at
- local col = 0
- local rfr = at.frame or (frames and frames [#frames])
- local rra = at.rowalign or (rowaligns and rowaligns [#rowaligns])
- local rca = at.columnalign or (columnaligns and columnaligns[#columnaligns])
- local ignorelabel = e.tg == "mlabeledtr"
- for e in lxml.collected(e,"/mml:mtd") do -- nested we can use xml.collected
- col = col + 1
- if ignorelabel and col == 1 then
- -- get rid of label, should happen at the document level
- else
- local at = e.at
- local rowspan, columnspan = at.rowspan or 1, at.columnspan or 1
- local cra = rowalignments [at.rowalign or (rowaligns and rowaligns [col]) or rra or "center"] or "lohi"
- local cca = columnalignments[at.columnalign or (columnaligns and columnaligns[col]) or rca or "center"] or "middle"
- local cfr = frametypes [at.frame or (frames and frames [col]) or rfr or "none" ] or "off"
- context.bTD { align = format("{%s,%s}",cra,cca), frame = cfr, nx = columnspan, ny = rowspan }
- context.startimath()
- context.ignorespaces()
- xmlcprint(e)
- context.stopimath()
- context.removeunwantedspaces()
- context.eTD()
- end
- end
- -- if e.tg == "mlabeledtr" then
- -- context.bTD()
- -- xmlcprint(xml.first(e,"/!mml:mtd"))
- -- context.eTD()
- -- end
- context.eTR()
- end
- context.eTABLE()
-end
-
-function mathml.csymbol(root)
- root = getid(root)
- local at = root.at
- local encoding = at.encoding or ""
- local hash = url.hashed(lower(at.definitionUrl or ""))
- local full = hash.original or ""
- local base = hash.path or ""
- local text = strip(xmltext(root) or "")
- context.mmlapplycsymbol(full,base,encoding,text)
-end
-
-function mathml.menclosepattern(root)
- root = getid(root)
- local a = root.at.notation
- if a and a ~= "" then
- context("mml:enclose:",(gsub(a," +",",mml:enclose:")))
- end
-end
-
-function xml.is_element(e,name)
- return type(e) == "table" and (not name or e.tg == name)
-end
-
-function mathml.cpolar_a(root)
- root = getid(root)
- local dt = root.dt
- context.mathopnolimits("Polar")
- context.left(false,"(")
- for k=1,#dt do
- local dk = dt[k]
- if xml.is_element(dk,"sep") then
- context(",")
- else
- xmlsprint(dk)
- end
- end
- context.right(false,")")
-end
+if not modules then modules = { } end modules ['x-mathml'] = {
+ version = 1.001,
+ comment = "companion to x-mathml.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- This needs an upgrade to the latest greatest mechanisms.
+
+local type, next = type, next
+local format, lower, find, gsub = string.format, string.lower, string.find, string.gsub
+local strip = string.strip
+local xmlsprint, xmlcprint, xmltext, xmlcontent = xml.sprint, xml.cprint, xml.text, xml.content
+local getid = lxml.getid
+local utfchar, utfcharacters, utfvalues = utf.char, utf.characters, utf.values
+local lpegmatch = lpeg.match
+
+local mathml = { }
+moduledata.mathml = mathml
+lxml.mathml = mathml -- for the moment
+
+-- an alternative is to remap to private codes, where we can have
+-- different properties .. to be done; this will move and become
+-- generic; we can then make the private ones active in math mode
+
+-- todo: handle opening/closing mo's here ... presentation mml is such a mess ...
+
+characters.registerentities()
+
+local doublebar = utfchar(0x2016)
+
+local n_replacements = {
+-- [" "] = utfchar(0x2002), -- "&textspace;" -> tricky, no &; in mkiv
+ ["."] = "{.}",
+ [","] = "{,}",
+ [" "] = "",
+}
+
+local l_replacements = { -- in main table
+ ["|"] = "\\mmlleftdelimiter\\vert",
+ ["{"] = "\\mmlleftdelimiter\\lbrace",
+ ["("] = "\\mmlleftdelimiter(",
+ ["["] = "\\mmlleftdelimiter[",
+ ["<"] = "\\mmlleftdelimiter<",
+ [doublebar] = "\\mmlleftdelimiter\\Vert",
+}
+local r_replacements = { -- in main table
+ ["|"] = "\\mmlrightdelimiter\\vert",
+ ["}"] = "\\mmlrightdelimiter\\rbrace",
+ [")"] = "\\mmlrightdelimiter)",
+ ["]"] = "\\mmlrightdelimiter]",
+ [">"] = "\\mmlrightdelimiter>",
+ [doublebar] = "\\mmlrightdelimiter\\Vert",
+}
+
+-- todo: play with asciimode and avoid mmlchar
+
+local o_replacements = { -- in main table
+ ["@l"] = "\\mmlleftdelimiter.",
+ ["@r"] = "\\mmlrightdelimiter.",
+ ["{"] = "\\mmlleftdelimiter \\lbrace",
+ ["}"] = "\\mmlrightdelimiter\\rbrace",
+ ["|"] = "\\mmlleftorrightdelimiter\\vert",
+ [doublebar] = "\\mmlleftorrightdelimiter\\Vert",
+ ["("] = "\\mmlleftdelimiter(",
+ [")"] = "\\mmlrightdelimiter)",
+ ["["] = "\\mmlleftdelimiter[",
+ ["]"] = "\\mmlrightdelimiter]",
+ -- ["<"] = "\\mmlleftdelimiter<",
+ -- [">"] = "\\mmlrightdelimiter>",
+ ["#"] = "\\mmlchar{35}",
+ ["$"] = "\\mmlchar{36}", -- $
+ ["%"] = "\\mmlchar{37}",
+ ["&"] = "\\mmlchar{38}",
+ ["^"] = "\\mmlchar{94}{}", -- strange, sometimes luatex math sees the char instead of \char
+ ["_"] = "\\mmlchar{95}{}", -- so we need the {}
+ ["~"] = "\\mmlchar{126}",
+ [" "] = "",
+ ["°"] = "^\\circ", -- hack
+
+ -- [utfchar(0xF103C)] = "\\mmlleftdelimiter<",
+ [utfchar(0xF1026)] = "\\mmlchar{38}",
+ -- [utfchar(0xF103E)] = "\\mmlleftdelimiter>",
+
+}
+
+local simpleoperatorremapper = utf.remapper(o_replacements)
+
+--~ languages.data.labels.functions
+
+local i_replacements = {
+ ["sin"] = "\\mathopnolimits{sin}",
+ ["cos"] = "\\mathopnolimits{cos}",
+ ["abs"] = "\\mathopnolimits{abs}",
+ ["arg"] = "\\mathopnolimits{arg}",
+ ["codomain"] = "\\mathopnolimits{codomain}",
+ ["curl"] = "\\mathopnolimits{curl}",
+ ["determinant"] = "\\mathopnolimits{det}",
+ ["divergence"] = "\\mathopnolimits{div}",
+ ["domain"] = "\\mathopnolimits{domain}",
+ ["gcd"] = "\\mathopnolimits{gcd}",
+ ["grad"] = "\\mathopnolimits{grad}",
+ ["identity"] = "\\mathopnolimits{id}",
+ ["image"] = "\\mathopnolimits{image}",
+ ["lcm"] = "\\mathopnolimits{lcm}",
+ ["lim"] = "\\mathopnolimits{lim}",
+ ["max"] = "\\mathopnolimits{max}",
+ ["median"] = "\\mathopnolimits{median}",
+ ["min"] = "\\mathopnolimits{min}",
+ ["mode"] = "\\mathopnolimits{mode}",
+ ["mod"] = "\\mathopnolimits{mod}",
+ ["polar"] = "\\mathopnolimits{Polar}",
+ ["exp"] = "\\mathopnolimits{exp}",
+ ["ln"] = "\\mathopnolimits{ln}",
+ ["log"] = "\\mathopnolimits{log}",
+ ["sin"] = "\\mathopnolimits{sin}",
+ ["arcsin"] = "\\mathopnolimits{arcsin}",
+ ["sinh"] = "\\mathopnolimits{sinh}",
+ ["arcsinh"] = "\\mathopnolimits{arcsinh}",
+ ["cos"] = "\\mathopnolimits{cos}",
+ ["arccos"] = "\\mathopnolimits{arccos}",
+ ["cosh"] = "\\mathopnolimits{cosh}",
+ ["arccosh"] = "\\mathopnolimits{arccosh}",
+ ["tan"] = "\\mathopnolimits{tan}",
+ ["arctan"] = "\\mathopnolimits{arctan}",
+ ["tanh"] = "\\mathopnolimits{tanh}",
+ ["arctanh"] = "\\mathopnolimits{arctanh}",
+ ["cot"] = "\\mathopnolimits{cot}",
+ ["arccot"] = "\\mathopnolimits{arccot}",
+ ["coth"] = "\\mathopnolimits{coth}",
+ ["arccoth"] = "\\mathopnolimits{arccoth}",
+ ["csc"] = "\\mathopnolimits{csc}",
+ ["arccsc"] = "\\mathopnolimits{arccsc}",
+ ["csch"] = "\\mathopnolimits{csch}",
+ ["arccsch"] = "\\mathopnolimits{arccsch}",
+ ["sec"] = "\\mathopnolimits{sec}",
+ ["arcsec"] = "\\mathopnolimits{arcsec}",
+ ["sech"] = "\\mathopnolimits{sech}",
+ ["arcsech"] = "\\mathopnolimits{arcsech}",
+ [" "] = "",
+
+ ["false"] = "{\\mr false}",
+ ["notanumber"] = "{\\mr NaN}",
+ ["otherwise"] = "{\\mr otherwise}",
+ ["true"] = "{\\mr true}",
+ ["declare"] = "{\\mr declare}",
+ ["as"] = "{\\mr as}",
+}
+
+-- we could use a metatable or when accessing fallback on the
+-- key but at least we now have an overview
+
+local csymbols = {
+ arith1 = {
+ lcm = "lcm",
+ big_lcm = "lcm",
+ gcd = "gcd",
+ big_gcd = "big_gcd",
+ plus = "plus",
+ unary_minus = "minus",
+ minus = "minus",
+ times = "times",
+ divide = "divide",
+ power = "power",
+ abs = "abs",
+ root = "root",
+ sum = "sum",
+ product = "product",
+ },
+ fns = {
+ domain = "domain",
+ range = "codomain",
+ image = "image",
+ identity = "ident",
+ -- left_inverse = "",
+ -- right_inverse = "",
+ inverse = "inverse",
+ left_compose = "compose",
+ lambda = "labmda",
+ },
+ linalg1 = {
+ vectorproduct = "vectorproduct",
+ scalarproduct = "scalarproduct",
+ outerproduct = "outerproduct",
+ transpose = "transpose",
+ determinant = "determinant",
+ vector_selector = "selector",
+ -- matrix_selector = "matrix_selector",
+ },
+ logic1 = {
+ equivalent = "equivalent",
+ ["not"] = "not",
+ ["and"] = "and",
+ -- big_and = "",
+ ["xor"] = "xor",
+ -- big_xor = "",
+ ["or"] = "or",
+ -- big-or = "",
+ implies = "implies",
+ ["true"] = "true",
+ ["false"] = "false",
+ },
+ nums1 = {
+ -- based_integer = "based_integer"
+ rational = "rational",
+ inifinity = "infinity",
+ e = "expenonentiale",
+ i = "imaginaryi",
+ pi = "pi",
+ gamma = "gamma",
+ NaN = "NaN",
+ },
+ relation1 = {
+ eq = "eq",
+ lt = "lt",
+ gt = "gt",
+ neq = "neq",
+ leq = "leq",
+ geq = "geq",
+ approx = "approx",
+ },
+ set1 = {
+ cartesian_product = "cartesianproduct",
+ empty_set = "emptyset",
+ map = "map",
+ size = "card",
+ -- suchthat = "suchthat",
+ set = "set",
+ intersect = "intersect",
+ -- big_intersect = "",
+ union = "union",
+ -- big_union = "",
+ setdiff = "setdiff",
+ subset = "subset",
+ ["in"] = "in",
+ notin = "notin",
+ prsubset = "prsubset",
+ notsubset = "notsubset",
+ notprsubset = "notprsubset",
+ },
+ veccalc1 = {
+ divergence = "divergence",
+ grad = "grad",
+ curl = "curl",
+ laplacian = "laplacian",
+ Laplacian = "laplacian",
+ },
+ calculus1 = {
+ diff = "diff",
+ -- nthdiff = "",
+ partialdiff = "partialdiff",
+ int = "int",
+ -- defint = "defint",
+ },
+ integer1 = {
+ factorof = "factorof",
+ factorial = "factorial",
+ quotient = "quotient",
+ remainder = "rem",
+ },
+ linalg2 = {
+ vector = "vector",
+ matrix = "matrix",
+ matrixrow = "matrixrow",
+ },
+ mathmkeys = {
+ -- equiv = "",
+ -- contentequiv = "",
+ -- contentequiv_strict = "",
+ },
+ rounding1 = {
+ ceiling = "ceiling",
+ floor = "floor",
+ -- trunc = "trunc",
+ -- round = "round",
+ },
+ setname1 = {
+ P = "primes",
+ N = "naturalnumbers",
+ Z = "integers",
+ rationals = "rationals",
+ R = "reals",
+ complexes = "complexes",
+ },
+ complex1 = {
+ -- complex_cartesian = "complex_cartesian", -- ci ?
+ real = "real",
+ imaginary = "imaginary",
+ -- complex_polar = "complex_polar", -- ci ?
+ argument = "arg",
+ conjugate = "conjugate",
+ },
+ interval1 = { -- not an apply
+ -- integer_interval = "integer_interval",
+ interval = "interval",
+ interval_oo = { tag = "interval", closure = "open" },
+ interval_cc = { tag = "interval", closure = "closed" },
+ interval_oc = { tag = "interval", closure = "open-closed" },
+ interval_co = { tag = "interval", closure = "closed-open" },
+ },
+ linalg3 = {
+ -- vector = "vector.column",
+ -- matrixcolumn = "matrixcolumn",
+ -- matrix = "matrix.column",
+ },
+ minmax1 = {
+ min = "min",
+ -- big_min = "",
+ max = "max",
+ -- big_max = "",
+ },
+ piece1 = {
+ piecewise = "piecewise",
+ piece = "piece",
+ otherwise = "otherwise",
+ },
+ error1 = {
+ -- unhandled_symbol = "",
+ -- unexpected_symbol = "",
+ -- unsupported_CD = "",
+ },
+ limit1 = {
+ -- limit = "limit",
+ -- both_sides = "both_sides",
+ -- above = "above",
+ -- below = "below",
+ -- null = "null",
+ tendsto = "tendsto",
+ },
+ list1 = {
+ -- map = "",
+ -- suchthat = "",
+ -- list = "list",
+ },
+ multiset1 = {
+ size = { tag = "card", type = "multiset" },
+ cartesian_product = { tag = "cartesianproduct", type = "multiset" },
+ empty_set = { tag = "emptyset", type = "multiset" },
+ -- multi_set = { tag = "multiset", type = "multiset" },
+ intersect = { tag = "intersect", type = "multiset" },
+ -- big_intersect = "",
+ union = { tag = "union", type = "multiset" },
+ -- big_union = "",
+ setdiff = { tag = "setdiff", type = "multiset" },
+ subset = { tag = "subset", type = "multiset" },
+ ["in"] = { tag = "in", type = "multiset" },
+ notin = { tag = "notin", type = "multiset" },
+ prsubset = { tag = "prsubset", type = "multiset" },
+ notsubset = { tag = "notsubset", type = "multiset" },
+ notprsubset = { tag = "notprsubset", type = "multiset" },
+ },
+ quant1 = {
+ forall = "forall",
+ exists = "exists",
+ },
+ s_dist = {
+ -- mean = "mean.dist",
+ -- sdev = "sdev.dist",
+ -- variance = "variance.dist",
+ -- moment = "moment.dist",
+ },
+ s_data = {
+ mean = "mean",
+ sdev = "sdev",
+ variance = "vriance",
+ mode = "mode",
+ median = "median",
+ moment = "moment",
+ },
+ transc1 = {
+ log = "log",
+ ln = "ln",
+ exp = "exp",
+ sin = "sin",
+ cos = "cos",
+ tan = "tan",
+ sec = "sec",
+ csc = "csc",
+ cot = "cot",
+ sinh = "sinh",
+ cosh = "cosh",
+ tanh = "tanh",
+ sech = "sech",
+ csch = "cscs",
+ coth = "coth",
+ arcsin = "arcsin",
+ arccos = "arccos",
+ arctan = "arctan",
+ arcsec = "arcsec",
+ arcscs = "arccsc",
+ arccot = "arccot",
+ arcsinh = "arcsinh",
+ arccosh = "arccosh",
+ arctanh = "arstanh",
+ arcsech = "arcsech",
+ arccsch = "arccsch",
+ arccoth = "arccoth",
+ },
+}
+
+function xml.functions.remapmmlcsymbol(e)
+ local at = e.at
+ local cd = at.cd
+ if cd then
+ cd = csymbols[cd]
+ if cd then
+ local tx = e.dt[1]
+ if tx and tx ~= "" then
+ local tg = cd[tx]
+ if tg then
+ at.cd = nil
+ at.cdbase = nil
+ e.dt = { }
+ if type(tg) == "table" then
+ for k, v in next, tg do
+ if k == "tag" then
+ e.tg = v
+ else
+ at[k] = v
+ end
+ end
+ else
+ e.tg = tg
+ end
+ end
+ end
+ end
+ end
+end
+
+function xml.functions.remapmmlbind(e)
+ e.tg = "apply"
+end
+
+function xml.functions.remapopenmath(e)
+ local tg = e.tg
+ if tg == "OMOBJ" then
+ e.tg = "math"
+ elseif tg == "OMA" then
+ e.tg = "apply"
+ elseif tg == "OMB" then
+ e.tg = "apply"
+ elseif tg == "OMS" then
+ local at = e.at
+ e.tg = "csymbol"
+ e.dt = { at.name or "unknown" }
+ at.name = nil
+ elseif tg == "OMV" then
+ local at = e.at
+ e.tg = "ci"
+ e.dt = { at.name or "unknown" }
+ at.name = nil
+ elseif tg == "OMI" then
+ e.tg = "ci"
+ end
+ e.rn = "mml"
+end
+
+function mathml.checked_operator(str)
+ context(simpleoperatorremapper(str))
+end
+
+function mathml.stripped(str)
+ context(strip(str))
+end
+
+function mathml.mn(id,pattern)
+ -- maybe at some point we need to interpret the number, but
+ -- currently we assume an upright font
+ local str = xmlcontent(getid(id)) or ""
+ local rep = gsub(str,"&.-;","")
+ local rep = gsub(rep,"(%s+)",utfchar(0x205F)) -- medspace e.g.: twenty one (nbsp is not seen)
+ local rep = gsub(rep,".",n_replacements)
+ context.mn(rep)
+end
+
+function mathml.mo(id)
+ local str = xmlcontent(getid(id)) or ""
+ local rep = gsub(str,"&.-;","") -- todo
+ context(simpleoperatorremapper(rep))
+end
+
+function mathml.mi(id)
+ -- we need to strip comments etc .. todo when reading in tree
+ local e = getid(id)
+ local str = e.dt
+ if type(str) == "string" then
+ local n = #str
+ if n == 0 then
+ -- nothing to do
+ elseif n == 1 then
+ local str = gsub(str[1],"&.-;","") -- bah
+ local rep = i_replacements[str]
+ if not rep then
+ rep = gsub(str,".",i_replacements)
+ end
+ context(rep)
+ -- context.mi(rep)
+ else
+ context.xmlflush(id) -- xmlsprint or so
+ end
+ else
+ context.xmlflush(id) -- xmlsprint or so
+ end
+end
+
+function mathml.mfenced(id) -- multiple separators
+ id = getid(id)
+ local left, right, separators = id.at.open or "(", id.at.close or ")", id.at.separators or ","
+ local l, r = l_replacements[left], r_replacements[right]
+ context.enabledelimiter()
+ if l then
+ context(l_replacements[left] or o_replacements[left] or "")
+ else
+ context(o_replacements["@l"])
+ context(left)
+ end
+ context.disabledelimiter()
+ local collected = lxml.filter(id,"/*") -- check the *
+ if collected then
+ local n = #collected
+ if n == 0 then
+ -- skip
+ elseif n == 1 then
+ xmlsprint(collected[1]) -- to be checked
+ else
+ local t = utf.split(separators,true)
+ for i=1,n do
+ xmlsprint(collected[i]) -- to be checked
+ if i < n then
+ local m = t[i] or t[#t] or ""
+ if m == "|" then
+ m = "\\enabledelimiter\\middle|\\relax\\disabledelimiter"
+ elseif m == doublebar then
+ m = "\\enabledelimiter\\middle|\\relax\\disabledelimiter"
+ elseif m == "{" then
+ m = "\\{"
+ elseif m == "}" then
+ m = "\\}"
+ end
+ context(m)
+ end
+ end
+ end
+ end
+ context.enabledelimiter()
+ if r then
+ context(r_replacements[right] or o_replacements[right] or "")
+ else
+ context(right)
+ context(o_replacements["@r"])
+ end
+ context.disabledelimiter()
+end
+
+--~ local function flush(e,tag,toggle)
+--~ if toggle then
+--~ context("^{")
+--~ else
+--~ context("_{")
+--~ end
+--~ if tag == "none" then
+--~ context("{}")
+--~ else
+--~ xmlsprint(e.dt)
+--~ end
+--~ if not toggle then
+--~ context("}")
+--~ else
+--~ context("}{}")
+--~ end
+--~ return not toggle
+--~ end
+
+local function flush(e,tag,toggle)
+ if tag == "none" then
+ -- if not toggle then
+ context("{}") -- {} starts a new ^_ set
+ -- end
+ elseif toggle then
+ context("^{")
+ xmlsprint(e.dt)
+ context("}{}") -- {} starts a new ^_ set
+ else
+ context("_{")
+ xmlsprint(e.dt)
+ context("}")
+ end
+ return not toggle
+end
+
+function mathml.mmultiscripts(id)
+ local done, toggle = false, false
+ for e in lxml.collected(id,"/*") do
+ local tag = e.tg
+ if tag == "mprescripts" then
+ context("{}")
+ done = true
+ elseif done then
+ toggle = flush(e,tag,toggle)
+ end
+ end
+ local done, toggle = false, false
+ for e in lxml.collected(id,"/*") do
+ local tag = e.tg
+ if tag == "mprescripts" then
+ break
+ elseif done then
+ toggle = flush(e,tag,toggle)
+ else
+ xmlsprint(e.dt)
+ done = true
+ end
+ end
+end
+
+local columnalignments = {
+ left = "flushleft",
+ right = "flushright",
+ center = "middle",
+}
+
+local rowalignments = {
+ top = "high",
+ bottom = "low",
+ center = "lohi",
+ baseline = "top",
+ axis = "lohi",
+}
+
+local frametypes = {
+ none = "off",
+ solid = "on",
+ dashed = "on",
+}
+
+-- crazy element ... should be a proper structure instead of such a mess
+
+function mathml.mcolumn(root)
+ root = getid(root)
+ local matrix, numbers = { }, 0
+ local function collect(m,e)
+ local tag = e.tg
+ if tag == "mi" or tag == "mn" or tag == "mo" or tag == "mtext" then
+ local str = xmltext(e)
+ str = gsub(str,"&.-;","")
+ for s in utfcharacters(str) do
+ m[#m+1] = { tag, s }
+ end
+ if tag == "mn" then
+ local n = utf.len(str)
+ if n > numbers then
+ numbers = n
+ end
+ end
+ elseif tag == "mspace" or tag == "mline" then
+ local str = e.at.spacing or ""
+ for s in utfcharacters(str) do
+ m[#m+1] = { tag, s }
+ end
+ -- elseif tag == "mline" then
+ -- m[#m+1] = { tag, e }
+ end
+ end
+ for e in lxml.collected(root,"/*") do
+ local m = { }
+ matrix[#matrix+1] = m
+ if e.tg == "mrow" then
+ -- only one level
+ for e in lxml.collected(e,"/*") do
+ collect(m,e)
+ end
+ else
+ collect(m,e)
+ end
+ end
+ context.halign()
+ context.bgroup()
+ context([[\hss\startimath\alignmark\stopimath\aligntab\startimath\alignmark\stopimath\cr]])
+ for i=1,#matrix do
+ local m = matrix[i]
+ local mline = true
+ for j=1,#m do
+ if m[j][1] ~= "mline" then
+ mline = false
+ break
+ end
+ end
+ if mline then
+ context.noalign([[\obeydepth\nointerlineskip]])
+ end
+ for j=1,#m do
+ local mm = m[j]
+ local tag, chr = mm[1], mm[2]
+ if tag == "mline" then
+ -- This code is under construction ... I need some real motivation
+ -- to deal with this kind of crap.
+--~ local n, p = true, true
+--~ for c=1,#matrix do
+--~ local mc = matrix[c][j]
+--~ if mc then
+--~ mc = mc[2]
+--~ if type(mc) ~= "string" then
+--~ n, p = false, false
+--~ break
+--~ elseif find(mc,"^[%d ]$") then -- rangecheck is faster
+--~ -- digit
+--~ elseif not find(mc,"^[%.%,]$") then -- rangecheck is faster
+--~ -- punctuation
+--~ else
+--~ n = false
+--~ break
+--~ end
+--~ end
+--~ end
+--~ if n then
+--~ chr = "\\mmlmcolumndigitrule"
+--~ elseif p then
+--~ chr = "\\mmlmcolumnpunctuationrule"
+--~ else
+--~ chr = "\\mmlmcolumnsymbolrule" -- should be widest char
+--~ end
+ chr = "\\hrulefill"
+ elseif tag == "mspace" then
+ chr = "\\mmlmcolumndigitspace" -- utfchar(0x2007)
+ end
+ if j == numbers + 1 then
+ context("\\aligntab")
+ end
+ local nchr = n_replacements[chr]
+ context(nchr or chr)
+ end
+ context.crcr()
+ end
+ context.egroup()
+end
+
+local spacesplitter = lpeg.tsplitat(" ")
+
+function mathml.mtable(root)
+ -- todo: align, rowspacing, columnspacing, rowlines, columnlines
+ root = getid(root)
+ local at = root.at
+ local rowalign = at.rowalign
+ local columnalign = at.columnalign
+ local frame = at.frame
+ local rowaligns = rowalign and lpegmatch(spacesplitter,rowalign)
+ local columnaligns = columnalign and lpegmatch(spacesplitter,columnalign)
+ local frames = frame and lpegmatch(spacesplitter,frame)
+ local framespacing = at.framespacing or "0pt"
+ local framespacing = at.framespacing or "-\\ruledlinewidth" -- make this an option
+
+ context.bTABLE { frame = frametypes[frame or "none"] or "off", offset = framespacing }
+ for e in lxml.collected(root,"/(mml:mtr|mml:mlabeledtr)") do
+ context.bTR()
+ local at = e.at
+ local col = 0
+ local rfr = at.frame or (frames and frames [#frames])
+ local rra = at.rowalign or (rowaligns and rowaligns [#rowaligns])
+ local rca = at.columnalign or (columnaligns and columnaligns[#columnaligns])
+ local ignorelabel = e.tg == "mlabeledtr"
+ for e in lxml.collected(e,"/mml:mtd") do -- nested we can use xml.collected
+ col = col + 1
+ if ignorelabel and col == 1 then
+ -- get rid of label, should happen at the document level
+ else
+ local at = e.at
+ local rowspan, columnspan = at.rowspan or 1, at.columnspan or 1
+ local cra = rowalignments [at.rowalign or (rowaligns and rowaligns [col]) or rra or "center"] or "lohi"
+ local cca = columnalignments[at.columnalign or (columnaligns and columnaligns[col]) or rca or "center"] or "middle"
+ local cfr = frametypes [at.frame or (frames and frames [col]) or rfr or "none" ] or "off"
+ context.bTD { align = format("{%s,%s}",cra,cca), frame = cfr, nx = columnspan, ny = rowspan }
+ context.startimath()
+ context.ignorespaces()
+ xmlcprint(e)
+ context.stopimath()
+ context.removeunwantedspaces()
+ context.eTD()
+ end
+ end
+ -- if e.tg == "mlabeledtr" then
+ -- context.bTD()
+ -- xmlcprint(xml.first(e,"/!mml:mtd"))
+ -- context.eTD()
+ -- end
+ context.eTR()
+ end
+ context.eTABLE()
+end
+
+function mathml.csymbol(root)
+ root = getid(root)
+ local at = root.at
+ local encoding = at.encoding or ""
+ local hash = url.hashed(lower(at.definitionUrl or ""))
+ local full = hash.original or ""
+ local base = hash.path or ""
+ local text = strip(xmltext(root) or "")
+ context.mmlapplycsymbol(full,base,encoding,text)
+end
+
+function mathml.menclosepattern(root)
+ root = getid(root)
+ local a = root.at.notation
+ if a and a ~= "" then
+ context("mml:enclose:",(gsub(a," +",",mml:enclose:")))
+ end
+end
+
+function xml.is_element(e,name)
+ return type(e) == "table" and (not name or e.tg == name)
+end
+
+function mathml.cpolar_a(root)
+ root = getid(root)
+ local dt = root.dt
+ context.mathopnolimits("Polar")
+ context.left(false,"(")
+ for k=1,#dt do
+ local dk = dt[k]
+ if xml.is_element(dk,"sep") then
+ context(",")
+ else
+ xmlsprint(dk)
+ end
+ end
+ context.right(false,")")
+end
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 01:31:11 +0000