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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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