1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/framework/env/format/string.lua	Sun Oct 25 12:00:00 2009 +0100
     1.3 @@ -0,0 +1,21 @@
     1.4 +--[[--
     1.5 +text =                 -- a string
     1.6 +format.string(
     1.7 +  value,               -- any value where tostring(value) gives a reasonable result
     1.8 +  {
     1.9 +    nil_as = nil_text  -- text to be returned for a nil value
    1.10 +  }
    1.11 +)
    1.12 +
    1.13 +Formats a value as a text by calling tostring(...), unless the value is nil, in which case the text returned is chosen by the 'nil_as' option.
    1.14 +
    1.15 +--]]--
    1.16 +
    1.17 +function format.string(str, options)
    1.18 +  local options = options or {}
    1.19 +  if str == nil then
    1.20 +    return options.nil_as or ""
    1.21 +  else
    1.22 +    return tostring(str)
    1.23 +  end
    1.24 +end