40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
local CoreWords = require("CoreWords")
|
|
local ds = require("DataStructures")
|
|
local istream = require("InputStream")
|
|
local Stack, Dictionary, WordInfo, State = ds.Stack, ds.Dictionary, ds.WordInfo, ds.State
|
|
local helpers = require("CoreHelpers")
|
|
local isNumber, skipWhitespace, parseToken = helpers.isNumber, helpers.skipWhitespace, helpers.parseToken
|
|
local machineState = State:new()
|
|
|
|
function standardInputRefill(): string
|
|
local input = io.read().."\n"
|
|
return input
|
|
end
|
|
|
|
local standardInputStream = istream:new(standardInputRefill)
|
|
|
|
machineState.activeInputStream = standardInputStream
|
|
machineState.activeDataStack = Stack:new()
|
|
table.insert(machineState.dictionaries, CoreWords)
|
|
|
|
|
|
while(true) do
|
|
skipWhitespace(machineState)
|
|
local token: string = parseToken(machineState)
|
|
if isNumber(token) then
|
|
machineState.activeDataStack:push(tonumber(token))
|
|
else
|
|
for i, dictionary in ipairs(machineState.dictionaries) do
|
|
local wordinfo = dictionary:lookup(token)
|
|
if wordinfo then
|
|
(wordinfo as WordInfo).func(machineState)
|
|
goto continue
|
|
end
|
|
end
|
|
print(string.format('%q ?', token))
|
|
::continue::
|
|
end
|
|
end
|
|
|
|
|