Difference between revisions of "Module:String"

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what>IAlex
m (adding "sub" method)
what>IAlex
m (make sub match current behaviour of {{str sub}})
Line 11: Line 11:
 
     local arg3 = tonumber( frame.args[3] )
 
     local arg3 = tonumber( frame.args[3] )
 
     if arg2 and arg3 then
 
     if arg2 and arg3 then
         return string.sub( arg1, arg2, arg3 )
+
        local first = arg2 + 1
 +
        local last  = first + arg3
 +
         return string.sub( arg1, first, last )
 
     else
 
     else
 
         return ""
 
         return ""

Revision as of 11:16, 22 August 2012

local p = {}

function p.length( frame )

   local arg1 = frame.args[1]
   return string.len( arg1 )

end

function p.sub( frame )

   local arg1 = frame.args[1]
   local arg2 = tonumber( frame.args[2] )
   local arg3 = tonumber( frame.args[3] )
   if arg2 and arg3 then
       local first = arg2 + 1
       local last  = first + arg3
       return string.sub( arg1, first, last )
   else
       return ""
   end

end

return p