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| local Arg = {}
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| Arg.__index = Arg
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| function Arg.new( value )
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| return setmetatable( {
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| __value = value
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| }, Arg )
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| end
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|
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| -- get the Arg node's value, if it has one
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| function Arg:val()
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| return self.__value
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| end
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|
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| -- get the value at the given key of this Arg node
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| function Arg:get( key )
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| return self[key] and self[key]:val()
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| end
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|
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| -- get the values of the Arg node's direct children
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| -- this is used to re-flatten/unwrap a particular piece of an Arg tree
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| function Arg:values()
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| local vals = {}
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| for k, v in pairs( self ) do
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| if type( v ) == 'table' and v.val then
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| vals[k] = v:val()
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| end
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| end
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|
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| return vals
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| end
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| local p = {} | | local p = {} |
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| function insertInto( tbl, key, value )
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| local first, rest = string.match( key, '^(.-)_(.*)$' )
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| local myKey = first or key
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| myKey = tonumber( myKey ) or myKey
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|
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| -- make sure the node exists
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| if not tbl[myKey] then tbl[myKey] = Arg.new() end
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|
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| if first then -- this is an internal node so insert children
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| insertInto( tbl[myKey], rest, value )
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| else -- this is a leaf so set value
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| tbl[myKey].__value = value
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| end
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| end
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|
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| function p.parse( args )
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| local parsedArgs = Arg.new()
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| for k, v in pairs( args ) do
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| insertInto( parsedArgs, k, v )
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| end
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|
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| return parsedArgs
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| end
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| -- place the value in the right spot in the arg tree, determined by underscores in the key | | -- place the value in the right spot in the arg tree, determined by underscores in the key |
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| -- expand the arg tree from the given frame and its parent | | -- expand the arg tree from the given frame and its parent |
| function p.fromFrame( frame ) | | function p.fromFrame( frame ) |
| local parsedArgs = Arg.new() | | local parsedArgs = {} |
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| for k, v in pairs( frame.args ) do | | for k, v in pairs( frame.args ) do |