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Simplify `is_uuid` function. (#1781) 

* Simplify `is_uuid` function.

Also because it returns now value itself it possible write
```Lua
my_uuid = is_uuid(value1) or is_uuid(value2)
```

* Change. Ensure `is_uuid` returns only boolean value
This commit is contained in:
Alexey Melnichuk 2016-07-29 01:49:36 +03:00 committed by FusionPBX
parent 4f9c1d7f67
commit e7c813a559
1 changed files with 38 additions and 11 deletions
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49
resources/install/scripts/resources/functions/is_uuid.lua
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@ -1,13 +1,40 @@
local pattern = '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$'
function is_uuid(s) function is_uuid(s)
if (string.len(s) == 36) then return not not string.match(s, pattern)
local x = "%x";
local t = { x:rep(8), x:rep(4), x:rep(4), x:rep(4), x:rep(12) }
local pattern = table.concat(t, '%-');
result = s:match(pattern);
end
if (result == nil) then
return false;
else
return true;
end
end end
--[[
local function is_uuid_self_test()
print('Is UUID self test ...')
local pass_tests = {
'34dd925b-f320-425f-ad87-0573c5b853c8',
'34DD925B-F320-425F-AD87-0573C5B853C8',
}
for _, value in ipairs(pass_tests) do
assert(true == is_uuid(value), value)
end
local fail_tests = {
-- no some digints
'4dd925b-f320-425f-ad87-0573c5b853c8',
'34DD925B-320-425F-AD87-0573C5B853C8',
'34dd925b-f320-425f-d87-0573c5b853c8',
'34DD925B-F320-425F-AD87-573C5B853C8',
'034dd925b-f320-425f-ad87-0573c5b853c8',
'34DD925B-0F320-425F-AD87-0573C5B853C8',
'34dd925b-f320-0425f-ad87-0573c5b853c8',
'34DD925B-F320-425F-0AD87-0573C5B853C8',
'34dd925b-f320-425f-ad87-00573c5b853c8',
' 34DD925B-F320-425F-AD87-0573C5B853C8',
'34DD925B-F320-425F-AD87-0573C5B853C8 ',
'G4DD925B-F320-425F-AD87-573C5B853C8',
}
for _, value in ipairs(fail_tests) do
assert(false == is_uuid(value), value)
end
print('Is UUID self test - pass')
end
is_uuid_self_test()
--]]