Module:Chem2
Documentation for this module may be created at Module:Chem2/doc
local getArgs = require('Module:Arguments').getArgs local p = {} -- module's table -- Elements with wiki links local am = { H = "[[Hydrogen|H]]", He = "[[Helium|He]]", Li = "[[Lithium|Li]]", Be = "[[Beryllium|Be]]", B = "[[Boron|B]]", C = "[[Carbon|C]]", N = "[[Nitrogen|N]]", O = "[[Oxygen|O]]", F = "[[Fluorine|F]]", Ne = "[[Neon|Ne]]", Na = "[[Sodium|Na]]", Mg = "[[Magnesium|Mg]]", Al = "[[Aluminium |Al]]", Si = "[[Silicon|Si]]", P = "[[Phosphorus|P]]", S = "[[Sulfur|S]]", Cl = "[[Chlorine|Cl]]", Ar = "[[Argon|Ar]]", K = "[[Potassium|K]]", Ca = "[[Calcium|Ca]]", Sc = "[[Scandium|Sc]]", Ti = "[[Titanium|Ti]]", V = "[[Vanadium|V]]", Cr = "[[Chromium|Cr]]", Mn = "[[Manganese|Mn]]", Fe = "[[Iron|Fe]]", Co = "[[Cobalt|Co]]", Ni = "[[Nickel|Ni]]", Cu = "[[Copper|Cu]]", Zn = "[[Zinc|Zn]]", Ga = "[[Gallium|Ga]]", Ge = "[[Germanium|Ge]]", As = "[[Arsenic|As]]", Se = "[[Selenium|Se]]", Br = "[[Bromine|Br]]", Kr = "[[Krypton|Kr]]", Rb = "[[Rubidium|Rb]]", Sr = "[[Strontium|Sr]]", Y = "[[Yttrium|Y]]", Zr = "[[Zirconium|Zr]]", Nb = "[[Niobium|Nb]]", Mo = "[[Molybdenum|Mo]]", Tc = "[[Technetium|Tc]]", Ru = "[[Ruthenium|Ru]]", Rh = "[[Rhodium|Rh]]", Pd = "[[Palladium|Pd]]", Ag = "[[Silver|Ag]]", Cd = "[[Cadmium|Cd]]", In = "[[Indium|In]]", Sn = "[[Tin|Sn]]", Sb = "[[Antimony|Sb]]", Te = "[[Tellurium|Te]]", I = "[[Iodine|I]]", Xe = "[[Xenon|Xe]]", Cs = "[[Caesium|Cs]]", Ba = "[[Barium|Ba]]", La = "[[Lanthanum|La]]", Ce = "[[Cerium|Ce]]", Pr = "[[Praseodymium|Pr]]", Nd = "[[Neodymium|Nd]]", Pm = "[[Promethium|Pm]]", Sm = "[[Samarium|Sm]]", Eu = "[[Europium|Eu]]", Gd = "[[Gadolinium|Gd]]", Tb = "[[Terbium|Tb]]", Dy = "[[Dysprosium|Dy]]", Ho = "[[Holmium|Ho]]", Er = "[[Erbium|Er]]", Tm = "[[Thulium|Tm]]", Yb = "[[Ytterbium|Yb]]", Lu = "[[Lutetium|Lu]]", Hf = "[[Hafnium|Hf]]", Ta = "[[Tantalum|Ta]]", W = "[[Tungsten|W]]", Re = "[[Rhenium|Re]]", Os = "[[Osmium|Os]]", Ir = "[[Iridium|Ir]]", Pt = "[[Platinum|Pt]]", Au = "[[Gold|Au]]", Hg = "[[Mercury (element)|Hg]]", Tl = "[[Thallium|Tl]]", Pb = "[[Lead|Pb]]", Bi = "[[Bismuth|Bi]]", Po = "[[Polonium|Po]]", At = "[[Astatine|At]]", Rn = "[[Radon|Rn]]", Fr = "[[Francium|Fr]]", Ra = "[[Radium|Ra]]", Ac = "[[Actinium|Ac]]", Th = "[[Thorium|Th]]", Pa = "[[Protactinium|Pa]]", U = "[[Uranium|U]]", Np = "[[Neptunium|Np]]", Pu = "[[Plutonium|Pu]]", Am = "[[Americium|Am]]", Cm = "[[Curium|Cm]]", Bk = "[[Berkelium|Bk]]", Cf = "[[Californium|Cf]]", Es = "[[Einsteinium|Es]]", Fm = "[[Fermium|Fm]]", Md = "[[Mendelevium|Md]]", No = "[[Nobelium|No]]", Lr = "[[Lawrencium|Lr]]", Rf = "[[Rutherfordium|Rf]]", Db = "[[Dubnium|Db]]", Sg = "[[Seaborgium|Sg]]", Bh = "[[Bohrium|Bh]]", Hs = "[[Hassium|Hs]]", Mt = "[[Meitnerium|Mt]]", Ds = "[[Darmstadtium|Ds]]", Rg = "[[Roentgenium|Rg]]", Cp = "[[Copernicium|Cp]]", Nh = "[[Nihonium|Nh]]", Fl = "[[Flerovium|Fl]]", Mc = "[[Moscovium|Mc]]", Lv = "[[Livermorium|Lv]]", Ts = "[[Tennessine|Ts]]", Og = "[[Oganesson|Og]]", } local T_ELEM = 0 -- token types local T_NUM = 1 -- number local T_OPEN = 2 -- open '(' local T_CLOSE = 3 -- close ')' local T_PM_CHARGE = 4 -- + or − local T_WATER = 6 -- .xH2O x number local T_CRYSTAL = 9 -- .x local T_CHARGE = 8 -- charge (x+), (x-) local T_SUF_CHARGE = 10 -- suffix and charge e.g. 2+ from H2+ local T_SUF_CHARGE2 = 12 -- suffix and (charge) e.g. 2(2+) from He2(2+) local T_SPECIAL = 14 -- starting with \ e.g. \d for double bond (=) local T_SPECIAL2 = 16 -- starting with \y{x} e.g. \i{12} for isotope with mass number 12 local T_ARROW_R = 17 -- match: -> local T_ARROW_EQ = 18 -- match: <-> local T_UNDERSCORE = 19 -- _{ ... } local T_CARET = 20 -- ^{ ... } local T_NOCHANGE = 30 -- Anything else like ☃ function su(up, down) if up == "" then return ('<sub class="template-chem2-sub">%s</sub>'):format(down) end if down == "" then return ('<sup class="template-chem2-sup">%s</sup>'):format(up) end return ('<span class="template-chem2-su"><span>%s</span><span>%s</span></span>'):format(up, down) end function DotIt() return '·' end function item(f) -- (iterator) returns one token (type, value) at a time from the formula 'f' local i = 1 local first = true return function () local t, x = nil, nil if (first and f:match('^[0-9]', i)) then x = f:match('^[%d.]+', i); t = T_NOCHANGE; i = i + x:len(); -- matching coefficient (need a space first) elseif i <= f:len() then x = f:match('^%s+[%d.]+', i); t = T_NOCHANGE; -- matching coefficient (need a space first) if not x then x = f:match('^%s[+]', i); t = T_NOCHANGE; end -- matching + (H2O + H2O) if not x then x = f:match('^%&%#[%w%d]+%;', i); t = T_NOCHANGE; end -- &#...; if not x then x = f:match('^%<%-%>', i); t = T_ARROW_EQ; end -- matching <-> if not x then x = f:match('^%-%>', i); t = T_ARROW_R; end -- matching -> if not x then x = f:match('^%u%l*', i); t = T_ELEM; end -- matching symbols like Aaaaa if not x then x = f:match('^%d+[+-]', i); t = T_SUF_CHARGE; end -- matching x+, x- if not x then x = f:match('^%d+%(%d*[+-]%)', i); t = T_SUF_CHARGE2; end -- matching x(y+/-), x(+/-) if not x then x = f:match('^%(%d*[+-]%)', i); t = T_CHARGE; end -- matching (x+) (xx+), (x-) (xx-) if not x then x = f:match('^[%d.]+', i); t = T_NUM; end -- matching number if not x then x = f:match('^[(|{|%[]', i); t = T_OPEN; end -- matching ({[ if not x then x = f:match('^[)|}|%]]', i); t = T_CLOSE; end -- matching )}] if not x then x = f:match('^[+-]', i); t = T_PM_CHARGE; end -- matching + or - if not x then x = f:match('^%*[%d.]*H2O', i); t = T_WATER; end -- Crystal water if not x then x = f:match('^%*[%d.]*', i); t = T_CRYSTAL; end -- Crystal if not x then x = f:match('^[\\].{%d+}', i); t = T_SPECIAL2; end -- \y{x} if not x then x = f:match('^[\\].', i); t = T_SPECIAL; end -- \x if not x then x = f:match('^_{[^}]*}', i); t = T_UNDERSCORE; end -- _{...} if not x then x = f:match('^\^{[^}]*}', i); t = T_CARET; end -- ^{...} if not x then x = f:match('^.', i); t = T_NOCHANGE; end --the rest - one by one if x then i = i + x:len(); else i = i + 999; error("Invalid character in formula! : "..f) end end first = false return t, x end end function p._chem(args) local f = args[1] or '' f = string.gsub(f, "–", "-") -- replace – with - (hyphen not ndash) f = string.gsub(f, "−", "-") -- replace – with - (hyphen not minus sign) local sumO = 0 local formula = '' local t, x local link = args['link'] or "" local auto = args['auto'] or "" if not (link == '') then formula = formula .. "[[" .. link .. "|"; end -- wikilink start [[link| for t, x in item(f) do if t == T_ELEM then if (auto == '') then formula = formula .. x elseif am[x] then formula = formula .. am[x]; am[x] = x else formula = formula .. x end elseif t == T_COEFFICIENT then formula = formula .. x elseif t == T_NUM then formula = formula .. su("", x); elseif t == T_OPEN then formula = formula .. x; sumO = sumO + 1; -- ( { elseif t == T_CLOSE then formula = formula .. x; sumO = sumO -1; -- ) } elseif t == T_PM_CHARGE then formula = formula .. su(string.gsub(x, "-", "−"), ""); elseif t == T_SUF_CHARGE then formula = formula .. su(string.gsub(string.match(x, "[+-]"), "-", "−"), string.match(x, "%d+"), ""); elseif t == T_SUF_CHARGE2 then formula = formula .. su(string.sub(string.gsub(string.match(x, "%(%d*[+-]"), "-", "−"), 2, -1), string.match(x, "%d+")) elseif t == T_CHARGE then formula = formula .. "<sup>"; if string.match(x, "%d+") then formula = formula .. string.match(x, "%d+"); end formula = formula .. string.gsub(string.match(x, "[%+-]"), "-", "−") .. "</sup>"; -- can not concatenat a nil value from string.match(x, "%d+"); elseif t == T_CRYSTAL then formula = formula .. DotIt() .. string.gsub( x, "*", '', 1 ); elseif t == T_SPECIAL then parameter = string.sub(x, 2, 2) -- x fra \x if parameter == "s" then formula = formula .. "−" -- single bond elseif parameter == "d" then formula = formula .. "=" -- double bond elseif parameter == "t" then formula = formula .. "≡" -- tripple bond elseif parameter == "q" then formula = formula .. "≣" -- Quadruple bond elseif parameter == "h" then formula = formula .. "η" -- η, hapticity elseif parameter == "*" then formula = formula .. "*" -- *, normal * elseif parameter == "-" then formula = formula .. "-" -- - elseif parameter == "\\" then formula = formula .. "\\" -- \ elseif parameter == "\'" then formula = formula .. "'" -- html-code for ' end elseif t == T_SPECIAL2 then -- \y{x} parameter = string.sub(x, 2, 2) -- y fra \y{x} if parameter == "h" then --[[Hapticity]] if (auto == '') then formula = formula .. "η<sup>" .. string.match(x, '%d+') .. "</sup>-" else formula = formula .. "[[Hapticity|η<sup>" .. string.match(x, '%d+') .. "</sup>]]-" end elseif parameter == "m" then formula = formula .. "μ<sub>" .. string.match(x, '%d+') .. "</sub>-" -- mu ([[bridging ligand]]) end elseif t == T_WATER then if string.match(x, "^%*[%d.]") then formula = formula .. DotIt() .. string.match(x, "%f[%.%d]%d*%.?%d*%f[^%.%d%]]") .. "H<sub>2</sub>O"; else formula = formula .. DotIt() .. "H<sub>2</sub>O"; end elseif t == T_UNDERSCORE then formula = formula .. su("", string.sub(x,3,-2)) -- x contains _{string} elseif t == T_CARET then formula = formula .. su(string.sub(x,3,-2), "") -- x contains ^{string} elseif t == T_ARROW_R then formula = formula .. " → " elseif t == T_ARROW_EQ then formula = formula .. " ⇌ " elseif t == T_NOCHANGE then formula = formula .. x; -- The rest - everything which isn't captured by the regular expresions. E.g. wikilinks and pipes else error('unreachable - ???') end -- in fact, unreachable end if not (link == nil or link == '') then formula = formula .. "]]"; end -- wikilink closing ]] formula = mw.getCurrentFrame():preprocess('<templatestyles src="Module:Chem2/styles.css"/>') .. '<span class="chemf nowrap">' .. formula .. '</span>' if args[2] or args[3] or args[4] then formula = formula .. require('Module:If preview')._warning{ '{{chem2}} was called with multiple positional arguments. It should have just one, e.g. {{chem2|H2O}}.' } end return formula end function p.chem(frame) local args = getArgs(frame) return p._chem(args) end return p