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added conversions

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This commit is contained in:
mpeterv
2014-01-19 15:57:53 +04:00
parent bba513802b
commit 434693507b
2 changed files with 57 additions and 4 deletions
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28
src/argparse.lua
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@@ -397,6 +397,16 @@ function Parser:parse(args)
end
end
local function convert(element, data)
if element.convert then
local ok, err = element.convert(data)
return parser:assert(ok, "%s", err or "malformed argument " .. data)
else
return data
end
end
local function format()
local invocations
@@ -416,22 +426,32 @@ function Parser:parse(args)
end
elseif element.maxargs == 1 and element.minargs == 1 then
if #invocations > 0 then
result[element.target] = invocations[1][1]
result[element.target] = convert(element, invocations[1][1])
else
result[element.target] = nil
end
else
result[element.target] = invocations[1]
if #invocations > 0 and element.convert then
for i=1, #result[element.target] do
result[element.target][i] = convert(element, result[element.target][i])
end
end
end
else
if element.maxargs == 0 then
result[element.target] = #invocations
elseif element.maxargs == 1 and element.minargs == 1 then
for i=1, #invocations do
invocations[i] = invocations[i][1]
invocations[i] = convert(element, invocations[i][1])
end
elseif element.convert then
for _, invocation in ipairs(invocations) do
for i=1, #invocation do
invocation[i] = convert(element, invocation[i])
end
end
else
result[element.target] = invocations
end
end
end