#!/usr/bin/env node 'use strict';

var path = require('path'); var fs = require('fs'); var acorn = require('../dist/acorn.js');

var infile; var forceFile; var silent = false; var compact = false; var tokenize = false; var options = {}

function help(status) {

var print = (status == 0) ? console.log : console.error
print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|...|--ecma2015|--ecma2016|...]")
print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]")
process.exit(status)

}

for (var i = 2; i < process.argv.length; ++i) {

var arg = process.argv[i]
if ((arg == "-" || arg[0] != "-") && !infile) infile = arg
else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i]
else if (arg == "--locations") options.locations = true
else if (arg == "--allow-hash-bang") options.allowHashBang = true
else if (arg == "--silent") silent = true
else if (arg == "--compact") compact = true
else if (arg == "--help") help(0)
else if (arg == "--tokenize") tokenize = true
else if (arg == "--module") options.sourceType = 'module'
else {
  var match = arg.match(/^--ecma(\d+)$/)
  if (match)
    options.ecmaVersion = +match[1]
  else
    help(1)
}

}

function run(code) {

var result
if (!tokenize) {
  try { result = acorn.parse(code, options) }
  catch(e) { console.error(e.message); process.exit(1) }
} else {
  result = []
  var tokenizer = acorn.tokenizer(code, options), token
  while (true) {
    try { token = tokenizer.getToken() }
    catch(e) { console.error(e.message); process.exit(1) }
    result.push(token)
    if (token.type == acorn.tokTypes.eof) break
  }
}
if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))

}

if (forceFile || infile && infile != “-”) {

run(fs.readFileSync(infile, "utf8"))

} else {

var code = ""
process.stdin.resume()
process.stdin.on("data", function (chunk) { return code += chunk; })
process.stdin.on("end", function () { return run(code); })

}