#!/usr/bin/env moon
-- This file contains the command-line Nomsu runner.
export NOMSU_VERSION
NOMSU_VERSION = {7, 0, 0}
clibtype = package.cpath\match("?%.(so)") or package.cpath\match("?%.(dll)")
if NOMSU_PREFIX
package.path = "#{NOMSU_PREFIX}/share/nomsu/#{table.concat NOMSU_VERSION, "."}/?.lua;"..package.path
package.cpath = "#{NOMSU_PREFIX}/lib/nomsu/#{table.concat NOMSU_VERSION, "."}/?.#{clibtype};"..package.cpath
export COLOR_ENABLED
COLOR_ENABLED = true
if clibtype == "dll"
-- Enable colors:
enable_colors = require('wincolors')
ok,_ = pcall(enable_colors)
if not ok
COLOR_ENABLED = false
-- Special hack to enable utf8 for windows console applications:
os.execute("chcp 65001>nul")
{:List, :Dict} = require 'containers'
NOMSU_VERSION = List(NOMSU_VERSION)
Text = require 'text'
require 'builtin_metatables'
usage = [=[
Nomsu Compiler
Usage: (nomsu | lua nomsu.lua | moon nomsu.moon) [-V version] [--help | -h] [--version] [-O optimization level] [-v] [-c] [-s] [-d debugger] [--no-core] [(file | -t tool | -e "nomsu code..." | files... -- ) [nomsu args...]]
OPTIONS
-t <tool> Run a tool.
-e Execute the specified string.
-O <level> Run the compiler with the given optimization level (>0: use precompiled .lua versions of Nomsu files, when available).
-v Verbose: print compiled lua code.
-c Compile the input files into a .lua files.
-s Check the input files for syntax errors.
-d <debugger> Attempt to use the specified debugger to wrap the main body of execution.
-h/--help Print this message.
--version Print the version number and exit.
--no-core Skip loading the Nomsu core by default.
-V specify which Nomsu version is desired.
<file> The Nomsu file to run (can be "-" to use stdin).
]=]
ok, _ = pcall ->
export lpeg, re
lpeg = require 'lpeg'
re = require 're'
if not ok
print("Error: unable to find the 'lpeg' Lua module. Please install LPEG either from http://www.inf.puc-rio.br/~roberto/lpeg/re.html or, if you use luarocks: `luarocks install lpeg`")
os.exit(EXIT_FAILURE)
Files = require "files"
{:NomsuCode, :LuaCode, :Source} = require "code_obj"
sep = "\3"
parser = re.compile([[
args <- {| (flag %sep)*
{:files: {|
( ("-m" %sep)? (file %sep)+ "--" %sep
/ file %sep
/ {~ '' %sep? -> 'nomsu://tools/repl.nom' ~}) |} :}
{:nomsu_args: {| (nomsu_flag %sep)* {:extras: {| ({[^%sep]+} %sep)* |} :} |} :}
|} ({.+}?)
file <-
( "-e" %sep ({[^%sep]+} -> spoof)
/ "-t" %sep {~ {[^%sep]+} -> "nomsu://tools/%1.nom" ~}
/ !"--" {[^%sep]+})
flag <- longflag / shortflag / "-" shortboolflag+
longflag <-
{:help: "--help" %true :}
/ {:version: "--version" %true :}
/ {:no_core: "--no-core" %true :}
shortflag <-
{:optimization: "-O" %sep? %number :}
/ {:debugger: ("-d" %sep? {[^%sep]+}) :}
/ {:requested_version: "-V" %sep? {([0-9.])+} :}
shortboolflag <-
{:check_syntax: "s" %true:}
/ {:compile: "c" %true:}
/ {:verbose: "v" %true :}
/ {:help: "h" %true :}
nomsu_flag <- nomsu_longflag / "-" nomsu_shortboolflag+
nomsu_shortboolflag <- {| {:key: [a-zA-Z] :} {:value: %true :} |}
nomsu_longflag <- '--' {| {:key: [^%sep=]+ :} {:value: ('=' {[^%sep]+}) / %true :} |}
]], {
true:lpeg.Cc(true), number:lpeg.R("09")^1/tonumber, sep:lpeg.P(sep),
spoof: Files.spoof
})
arg_string = table.concat(arg, sep)..sep
args, err = parser\match(arg_string)
if not args or err or args.help
if err
print("Didn't understand: #{err}")
print usage
os.exit(EXIT_FAILURE)
if args.version
print(NOMSU_VERSION\joined_with("."))
os.exit(EXIT_SUCCESS)
nomsu_args = Dict{}
for argpair in *args.nomsu_args
nomsu_args[argpair.key] = argpair.value
nomsu_args.extras = List(args.nomsu_args.extras or {})
optimization = tonumber(args.optimization or 1)
nomsupath = {}
suffixes = if optimization > 0
{"?.lua", "?/init.lua", "?.nom", "?/init.nom"}
else {"?.nom", "?/init.nom"}
add_path = (p)->
for s in *suffixes do table.insert(nomsupath, p.."/"..s)
if NOMSU_PREFIX
add_path "#{NOMSU_PREFIX}/share/nomsu/#{NOMSU_VERSION\joined_with(".")}/lib"
else
add_path "./lib"
NOMSU_PACKAGEPATH or= "/opt/nomsu"
add_path NOMSU_PACKAGEPATH
add_path "."
package.nomsupath = table.concat(nomsupath, ";")
package.nomsuloaded = Dict{}
nomsu_environment = require('nomsu_environment')
nomsu_environment.NOMSU_VERSION = NOMSU_VERSION
nomsu_environment.COMMAND_LINE_ARGS = nomsu_args
nomsu_environment.OPTIMIZATION = optimization
nomsu_environment.NOMSU_PACKAGEPATH = NOMSU_PACKAGEPATH
nomsu_environment.NOMSU_PREFIX = NOMSU_PREFIX
nomsu_environment.COLOR_ENABLED = COLOR_ENABLED
run = ->
unless args.no_core
nomsu_environment\export("core")
input_files = {}
if args.files
for f in *args.files
if nomsu_name = f\match("^nomsu://(.*)%.nom")
path, err = package.searchpath(nomsu_name, package.nomsupath, "/")
if not path then error(err)
table.insert input_files, path
else
table.insert input_files, f
for filename in *input_files
if args.check_syntax
-- Check syntax
code = Files.read(filename)
source = Source(filename, 1, #code)
nomsu_environment._1_parsed(NomsuCode\from(source, code))
print("Parse succeeded: #{filename}")
elseif args.compile
code = Files.read(filename)
if not code
error("Could not find file '#{filename}'")
-- Compile .nom files into .lua
if filename\match("%.lua$")
error("Cannot compile a lua file (expected a nomsu file as input)")
output = if filename == 'stdin' then io.output()
else io.open(filename\gsub("%.nom$", ".lua"), "w")
source = Source(filename, 1, #code)
code = NomsuCode\from(source, code)
env = nomsu_environment.new_environment!
env.MODULE_NAME = filename
tree = env._1_parsed(code)
if tree.shebang
output\write tree.shebang
tree = {tree} unless tree.type == 'FileChunks'
for chunk_no, chunk in ipairs tree
lua = env\compile(chunk)
lua\declare_locals!
lua\prepend((chunk_no > 1) and '\n' or '', "-- File #{filename} chunk ##{chunk_no}\n")
if args.verbose then print(lua\text!)
env\run(chunk)
output\write(lua\text!, "\n")
print ("Compiled %-25s -> %s")\format(filename, filename\gsub("%.nom$", ".lua"))
output\close!
elseif args.verbose
env = nomsu_environment.new_environment!
env.MODULE_NAME = filename
env.WAS_RUN_DIRECTLY = true
code = Files.read(filename)
source = Source(filename, 1, #code)
if filename\match("%.lua$")
code = LuaCode\from(Source(filename, 1, #code), code)
print(code\text!)
env\run(code)
else
code = NomsuCode\from(source, code)
tree = env._1_parsed(code)
tree = {tree} unless tree.type == 'FileChunks'
for chunk_no, chunk in ipairs tree
lua = env\compile(chunk)
lua\declare_locals!
lua\prepend((chunk_no > 1) and '\n' or '', "-- File #{filename} chunk ##{chunk_no}\n")
print(lua\text!)
env\run(lua)
else
-- Just run the file
f = Files.read(filename)
if filename\match("%.lua$")
f = LuaCode\from(Source(filename, 1, #f), f)
env = nomsu_environment.new_environment!
env.MODULE_NAME = filename
env.WAS_RUN_DIRECTLY = true
env\run(f)
debugger = if args.debugger == "nil" then {}
else require(args.debugger or 'error_handling')
guard = if type(debugger) == 'function' then debugger
else debugger.guard or debugger.call or debugger.wrap or debugger.run or ((fn)->fn())
guard(run)