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view framework/env/format/string.lua @ 17:5ab8a36ffe19
Added tag v1.0.9 for changeset 944642a3e488
author | jbe |
---|---|
date | Thu Mar 25 20:25:12 2010 +0100 (2010-03-25) |
parents | 9fdfb27f8e67 |
children | 0c4841af07a5 |
line source
1 --[[--
2 text = -- a string
3 format.string(
4 value, -- any value where tostring(value) gives a reasonable result
5 {
6 nil_as = nil_text -- text to be returned for a nil value
7 }
8 )
10 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.
12 --]]--
14 function format.string(str, options)
15 local options = options or {}
16 if str == nil then
17 return options.nil_as or ""
18 else
19 return tostring(str)
20 end
21 end