65 lines
2.2 KiB
JavaScript
65 lines
2.2 KiB
JavaScript
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'use strict';
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var path = require('path');
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var fs = require('fs');
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var acorn = require('./acorn.js');
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var infile, forceFile, silent = false, compact = false, tokenize = false;
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var options = {};
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function help(status) {
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var print = (status === 0) ? console.log : console.error;
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print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
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print(" [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]");
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process.exit(status);
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}
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for (var i = 2; i < process.argv.length; ++i) {
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var arg = process.argv[i];
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if ((arg === "-" || arg[0] !== "-") && !infile) { infile = arg; }
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else if (arg === "--" && !infile && i + 2 === process.argv.length) { forceFile = infile = process.argv[++i]; }
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else if (arg === "--locations") { options.locations = true; }
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else if (arg === "--allow-hash-bang") { options.allowHashBang = true; }
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else if (arg === "--silent") { silent = true; }
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else if (arg === "--compact") { compact = true; }
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else if (arg === "--help") { help(0); }
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else if (arg === "--tokenize") { tokenize = true; }
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else if (arg === "--module") { options.sourceType = "module"; }
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else {
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var match = arg.match(/^--ecma(\d+)$/);
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if (match)
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{ options.ecmaVersion = +match[1]; }
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else
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{ help(1); }
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}
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}
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function run(code) {
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var result;
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try {
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if (!tokenize) {
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result = acorn.parse(code, options);
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} else {
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result = [];
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var tokenizer = acorn.tokenizer(code, options), token;
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do {
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token = tokenizer.getToken();
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result.push(token);
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} while (token.type !== acorn.tokTypes.eof)
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}
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} catch (e) {
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console.error(infile && infile !== "-" ? e.message.replace(/\(\d+:\d+\)$/, function (m) { return m.slice(0, 1) + infile + " " + m.slice(1); }) : e.message);
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process.exit(1);
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}
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if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); }
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}
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if (forceFile || infile && infile !== "-") {
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run(fs.readFileSync(infile, "utf8"));
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} else {
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var code = "";
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process.stdin.resume();
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process.stdin.on("data", function (chunk) { return code += chunk; });
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process.stdin.on("end", function () { return run(code); });
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}
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