Module:Chem2: Difference between revisions
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local p = {} -- module's table | local p = {} -- module's table | ||
-- Elements with wiki links | |||
am | 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_ELEM = 0 -- token types | ||
Line 27: | Line 140: | ||
local T_UNDERSCORE = 19 -- _{ ... } | local T_UNDERSCORE = 19 -- _{ ... } | ||
local T_CARET = 20 -- ^{ ... } | local T_CARET = 20 -- ^{ ... } | ||
local T_NOCHANGE = 30 | local T_NOCHANGE = 30 -- Anything else like ☃ | ||
function su(up, down) -- | function su(up, down) | ||
if up == "" then | |||
return ('<sub class="template-chem2-sub">%s</sub>'):format(down) | |||
end | |||
return | 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 | end | ||
function DotIt() | function DotIt() | ||
return '·' | |||
end | end | ||
function item(f) -- (iterator) returns one token (type, value) at a time from the formula 'f' | 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 | 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 | 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 = | first = false | ||
return t, x | |||
end | |||
end | |||
function p._chem(args) | function p._chem(args) | ||
local f = args[1] or '' | |||
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 == "d" then formula = formula .. "=" -- double bond | ||
elseif parameter == "t" then formula = formula .. "≡" -- tripple bond | elseif parameter == "t" then formula = formula .. "≡" -- tripple bond | ||
Line 120: | Line 237: | ||
elseif parameter == "\\" then formula = formula .. "\\" -- \ | elseif parameter == "\\" then formula = formula .. "\\" -- \ | ||
elseif parameter == "\'" then formula = formula .. "'" -- html-code for ' | 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 | end | ||
function p.chem(frame) | function p.chem(frame) | ||
local args = getArgs(frame) | |||
return p._chem(args) | |||
end | end | ||
return p | return p |
Revision as of 13:04, 12 December 2021
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