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							- 'use strict';
 
- var path = require('path');
 
- var fs = require('fs');
 
- var acorn = require('./acorn.js');
 
- var infile, forceFile, silent = false, compact = false, 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|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
 
-   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;
 
-   try {
 
-     if (!tokenize) {
 
-       result = acorn.parse(code, options);
 
-     } else {
 
-       result = [];
 
-       var tokenizer = acorn.tokenizer(code, options), token;
 
-       do {
 
-         token = tokenizer.getToken();
 
-         result.push(token);
 
-       } while (token.type !== acorn.tokTypes.eof)
 
-     }
 
-   } catch (e) {
 
-     console.error(infile && infile !== "-" ? e.message.replace(/\(\d+:\d+\)$/, function (m) { return m.slice(0, 1) + infile + " " + m.slice(1); }) : e.message);
 
-     process.exit(1);
 
-   }
 
-   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); });
 
- }
 
 
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