| '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); }); |
| } |