dofile

-- Compile ACT code
-- By Fenthis

-- This program takes a specified file, removes Lua
-- style comments, and spaces. It also allows you to
-- define macros like:
--
-- macroname = macrotext
--
-- And use them as [macroname].
--
-- Extra arguments to the program are turned into macros
-- such as [1], [2], etc.

-- macro store
macros = {}
-- parsed code
code = ""

-- Arguments!
args = { ... }
if #args < 1 then
    print("Usage: dofile <filename> [<arg1> ...]")
    return
end

-- Dur
if not turtle then
    print("I am not running on a turtle.")
    return
end

-- Check to see if the API is loaded
if not act then
    print("act api not installed.")
    return
end

-- Open the file, make sure we can read it.
filename = args[1]
f = fs.open(filename, 'r')
if not f then
    print("Can not read file: "..filename)
    return
end

-- Define arguments as macros
if #args > 1 then
    for i = 2, #args do
        macros[i-1] = args[i]
    end
end

-- Process the file
line = f:readLine()
while line do
    -- Remove comments
    line = line:gsub("%-%-.*", "")
    -- Remove whitespace
    line = line:gsub("%s", "")

    -- Define macros
    macro, value = line:match("^([^=]*)=(.*)$")
    if macro then
        if not macro:match("^[%w_%-]*$") then
            print("Macro names may only contain letters, numbers, _ and -.")
            return
        end
        -- print("Defining macro "..macro.." with value "..value)
        macros[macro] = value
        line = ""
    -- Or apply macros
    else
        for key, value in pairs(macros) do
            line = line:gsub("%["..key.."%]", value)
        end
    end
    -- save to code
    code = code .. line

    -- Next!
    line = f:readLine()
end

-- Let them know what we are doing
print("Code: "..code)

-- Dooo et!
act.act(code)