/usr/lib/nodejs/acorn/src/bin/acorn.js is in node-acorn 5.4.1+ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | import {basename} from "path"
import {readFileSync as readFile} from "fs"
import * as acorn from "acorn"
let infile, forceFile, silent = false, compact = false, tokenize = false
const options = {}
function help(status) {
const print = (status == 0) ? console.log : console.error
print("usage: " + 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 (let i = 2; i < process.argv.length; ++i) {
const 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 {
let match = arg.match(/^--ecma(\d+)$/)
if (match)
options.ecmaVersion = +match[1]
else
help(1)
}
}
function run(code) {
let result
try {
if (!tokenize) {
result = acorn.parse(code, options)
} else {
result = []
let tokenizer = acorn.tokenizer(code, options), token
do {
token = tokenizer.getToken()
result.push(token)
} while (token.type != acorn.tokTypes.eof)
}
} catch (e) {
console.error(e.message)
process.exit(1)
}
if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
}
if (forceFile || infile && infile != "-") {
run(readFile(infile, "utf8"))
} else {
let code = ""
process.stdin.resume()
process.stdin.on("data", chunk => code += chunk)
process.stdin.on("end", () => run(code))
}
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