69 lines
1.9 KiB
Lua
69 lines
1.9 KiB
Lua
--------------
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-- Entry point for loading all PL libraries only on demand.
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-- Requiring 'pl' means that whenever a module is implicitly accesssed
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-- (e.g. `utils.split`)
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-- then that module is dynamically loaded. The submodules are all brought into
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-- the global space.
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-- @module pl
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local modules = {
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utils = true,path=true,dir=true,tablex=true,stringio=true,sip=true,
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input=true,seq=true,lexer=true,stringx=true,
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config=true,pretty=true,data=true,func=true,text=true,
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operator=true,lapp=true,array2d=true,
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comprehension=true,xml=true,
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test = true, app = true, file = true, class = true, List = true,
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Map = true, Set = true, OrderedMap = true, MultiMap = true,
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Date = true,
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-- classes --
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}
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_G.utils = require 'pl.utils'
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for name,klass in pairs(_G.utils.stdmt) do
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klass.__index = function(t,key)
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return require ('pl.'..name)[key]
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end;
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end
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-- ensure that we play nice with libraries that also attach a metatable
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-- to the global table; always forward to a custom __index if we don't
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-- match
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local _hook,_prev_index
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local gmt = {}
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local prev_gmt = getmetatable(_G)
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if prev_gmt then
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_prev_index = prev_gmt.__index
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if prev_gmt.__newindex then
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gmt.__index = prev_gmt.__newindex
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end
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end
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function gmt.hook(handler)
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_hook = handler
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end
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function gmt.__index(t,name)
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local found = modules[name]
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-- either true, or the name of the module containing this class.
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-- either way, we load the required module and make it globally available.
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if found then
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-- e..g pretty.dump causes pl.pretty to become available as 'pretty'
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rawset(_G,name,require('pl.'..name))
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return _G[name]
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else
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local res
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if _hook then
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res = _hook(t,name)
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if res then return res end
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end
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if _prev_index then
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return _prev_index(t,name)
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end
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end
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end
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setmetatable(_G,gmt)
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if rawget(_G,'PENLIGHT_STRICT') then require 'pl.strict' end
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