webmcp
view framework/env/parse/boolean.lua @ 2:72860d232f32
Version 1.0.2
Fixed bug with explicit garbage collection (requests > 256kB caused an error)
Views prefixed with an underscore can't be called externally
ui.paginate now displays the last page, if the selected page number is too high.
Fixed bug with explicit garbage collection (requests > 256kB caused an error)
Views prefixed with an underscore can't be called externally
ui.paginate now displays the last page, if the selected page number is too high.
| author | jbe/bsw |
|---|---|
| date | Thu Dec 10 12:00:00 2009 +0100 (2009-12-10) |
| parents | 9fdfb27f8e67 |
| children |
line source
1 function parse.boolean(str, dest_type, options)
2 if dest_type ~= atom.boolean then
3 error("parse.boolean(...) can only return booleans, but a different destination type than atom.boolean was given.")
4 end
5 local options = options or {}
6 local trimmed_str = string.match(str or "", "^%s*(.-)%s*$")
7 if options.true_as or options.false_as or options.nil_as then
8 if trimmed_str == options.true_as then
9 return true
10 elseif trimmed_str == options.false_as then
11 return false
12 elseif trimmed_str == options.nil_as or trimmed_str == "" then
13 return nil
14 else
15 error("Boolean value not recognized.")
16 end
17 else
18 local char = string.upper(string.sub(trimmed_str, 1, 1))
19 if char == "1" or char == "T" or char == "Y" then
20 return true
21 elseif char == "0" or char == "F" or char == "N" then
22 return false
23 elseif char == "" then
24 return nil
25 else
26 error("Boolean value not recognized.")
27 end
28 end
29 end