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Module:Math: Difference between revisions

902 bytes added ,  11 years ago
Adds fraction trapping as an option
m>Dragons flight
m (Protected Module:Math: Going to be used in high profile templates ([Edit=Block all non-admin users] (indefinite) [Move=Block all non-admin users] (indefinite)))
m>Dragons flight
(Adds fraction trapping as an option)
Line 64: Line 64:
function z.precision( frame )
function z.precision( frame )
     local input_string = (frame.args[1] or frame.args.x or '0');
     local input_string = (frame.args[1] or frame.args.x or '0');
    local trap_fraction = frame.args.check_fraction or false;
     local input_number;
     local input_number;
   
    if type( trap_fraction ) == 'string' then
        trap_fraction = trap_fraction:lower();
        if trap_fraction == 'false' or trap_fraction == '0' or
                trap_fraction == 'no' or trap_fraction == '' then
            trap_fraction = false;
        else
            trap_fraction = true;
        end
    end
   
    if trap_fraction then
        local pos = string.find( input_string, '/', 1, true );
        if pos ~= nil then
            if string.find( input_string, '/', pos + 1, true ) == nil then
                local denominator = string.sub( input_string, pos+1, -1 );
                local denom_value = tonumber( denominator );
                if denom_value ~= nil then
                    return math.log10(denom_value);
                end
            end                       
        end
    end   
      
      
     input_number, input_string = z._cleanNumber( frame, input_string );
     input_number, input_string = z._cleanNumber( frame, input_string );
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