1 | 'use strict';
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2 |
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3 | var path = require('path');
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4 | var fs = require('fs');
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5 | var acorn = require('./acorn.js');
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6 |
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7 | var infile, forceFile, silent = false, compact = false, tokenize = false;
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8 | var options = {};
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9 |
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10 | function help(status) {
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11 | var print = (status === 0) ? console.log : console.error;
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12 | print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
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13 | print(" [--tokenize] [--locations] [---allow-hash-bang] [--allow-await-outside-function] [--compact] [--silent] [--module] [--help] [--] [infile]");
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14 | process.exit(status);
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15 | }
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16 |
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17 | for (var i = 2; i < process.argv.length; ++i) {
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18 | var arg = process.argv[i];
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19 | if ((arg === "-" || arg[0] !== "-") && !infile) { infile = arg; }
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20 | else if (arg === "--" && !infile && i + 2 === process.argv.length) { forceFile = infile = process.argv[++i]; }
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21 | else if (arg === "--locations") { options.locations = true; }
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22 | else if (arg === "--allow-hash-bang") { options.allowHashBang = true; }
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23 | else if (arg === "--allow-await-outside-function") { options.allowAwaitOutsideFunction = true; }
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24 | else if (arg === "--silent") { silent = true; }
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25 | else if (arg === "--compact") { compact = true; }
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26 | else if (arg === "--help") { help(0); }
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27 | else if (arg === "--tokenize") { tokenize = true; }
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28 | else if (arg === "--module") { options.sourceType = "module"; }
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29 | else {
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30 | var match = arg.match(/^--ecma(\d+)$/);
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31 | if (match)
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32 | { options.ecmaVersion = +match[1]; }
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33 | else
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34 | { help(1); }
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35 | }
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36 | }
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37 |
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38 | function run(code) {
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39 | var result;
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40 | try {
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41 | if (!tokenize) {
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42 | result = acorn.parse(code, options);
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43 | } else {
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44 | result = [];
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45 | var tokenizer = acorn.tokenizer(code, options), token;
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46 | do {
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47 | token = tokenizer.getToken();
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48 | result.push(token);
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49 | } while (token.type !== acorn.tokTypes.eof)
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50 | }
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51 | } catch (e) {
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52 | 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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53 | process.exit(1);
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54 | }
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55 | if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); }
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56 | }
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57 |
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58 | if (forceFile || infile && infile !== "-") {
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59 | run(fs.readFileSync(infile, "utf8"));
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60 | } else {
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61 | var code = "";
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62 | process.stdin.resume();
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63 | process.stdin.on("data", function (chunk) { return code += chunk; });
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64 | process.stdin.on("end", function () { return run(code); });
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65 | }
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