Difference between revisions of "Module:Math templates"

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(Underp)
m (underp more)
Line 6: Line 6:
   
 
function p.subst(f)
 
function p.subst(f)
local base = 0
+
local base = 1
 
local fp = f:getParent()
 
local fp = f:getParent()
if fp then
+
if not fp then
base = 1
+
base = 0
else
 
 
fp = f
 
fp = f
 
end
 
end

Revision as of 04:54, 23 July 2016

{{#invoke:Math templates|subst|math|arg1|arg2|...}}

Prints math inside math tags, with the arguments substituted in. Use ${n} to invoke substitution of parameter n, drawn from the arguments to #invoke.

For instance,

{{#invoke:Math templates|subst|${2} + ${3} = ${4}|a|b|c}}

expands to

<math>a + b = c</math>

display is special: it becomes the same-named attribute of the math tags.


local p = {}

function p.ROCSpeed(f)
    return f:preprocess("<math display=\"inline\">Time = " .. f.args[1] .. " - ".. f.args[2] .. " \\times \\log_{2}(x+1)</math>")
end

function p.subst(f)
    local base = 1
    local fp = f:getParent()
    if not fp then
        base = 0
        fp = f
    end

    local function replace(marker)
        local name = marker:sub(3, -2)
        name = (tonumber(name) + base) or name
        return fp.args[name] or marker
    end

    local str = "(math"
    if f.args["display"] then
        str = str .. " display=\"" .. f.args["display"] .. "\""
    end
    str = str .. ")" .. f.args[1]:gsub('($%b{})', replace) .. "(/math)"
    
    return f:preprocess(str)
end

return p