From 68ac65b3cda05234fbe7115df08ae8639a1487ea Mon Sep 17 00:00:00 2001
From: Fred Chasen <fchasen@gmail.com>
Date: Sun, 13 Oct 2019 11:23:09 -0700
Subject: [PATCH] Add eslint and fix errors

---
 bin/paged            |  76 ++--
 package-lock.json    | 825 ++++++++++++++++++++++++-------------------
 package.json         |  27 +-
 src/postprocesser.js |  44 +--
 src/printer.js       |  37 +-
 src/writer.js        |  15 +-
 6 files changed, 560 insertions(+), 464 deletions(-)

diff --git a/bin/paged b/bin/paged
index 707ae1f..a176a5e 100755
--- a/bin/paged
+++ b/bin/paged
@@ -1,36 +1,36 @@
 #!/usr/bin/env node
-const program = require('commander');
-const ora = require('ora');
+const program = require("commander");
+const ora = require("ora");
 const Printer = require("../");
-const path = require('path');
-const fs = require('fs');
-const { promisify } = require('util');
-const writeFileAsync = promisify(fs.writeFile);
-const replaceExt = require('replace-ext');
+const path = require("path");
+const fs = require("fs");
+// const { promisify } = require("util");
+// const writeFileAsync = promisify(fs.writeFile);
+const replaceExt = require("replace-ext");
 
 program
-  .version(require('../package.json').version)
-  .arguments('[inputPath]')
-  .option('-i, --inputs [inputs]', 'Inputs')
-  .option('-o, --output [output]', 'Output')
-  .option('-d, --debug', 'Debug')
-  .option('-l, --landscape', 'Landscape printing', false)
-  .option('-s, --page-size [size]', 'Print to Page Size [size]')
-  .option('-w, --width [size]', 'Print to Page Width [width] in MM')
-  .option('-h --height [size]', 'Print to Page Height [weight] in MM')
-  // .option('-m, --page-margin [margin]', 'Print with margin [margin]')
-  // .option('-n, --hyphenate [lang]', 'Hyphenate with language [language], defaults to "en-us"')
-  // .option('-hi, --hypher_ignore [str]', 'Ignore passed element selectors, such as ".class_to_ignore, h1"')
-  // .option('-ho, --hypher_only [str]', 'Only hyphenate passed elements selector, such as ".hyphenate, aside"')
-  // .option('-e, --encoding [type]', 'Set the encoding of the input html, defaults to "utf-8"')
-  .option('-t, --timeout [ms]', 'Set a max timeout of [ms]')
-  .option('-x, --html', 'output html file')
-  .option('-b, --blockLocal', 'Disallow access to filesystem for local files')
-  .option('--outline-tags [tags]', 'Specifies that an outline should be ' +
-          'generated for the resulting PDF document. [tags] specifies which ' +
-          'HTML tags should be considered for that outline. ' +
-          '"h1,h2" will trigger an outline with "h1" tags as root elements ' +
-          'and "h2" elements as their childs.')
+  .version(require("../package.json").version)
+  .arguments("[inputPath]")
+  .option("-i, --inputs [inputs]", "Inputs")
+  .option("-o, --output [output]", "Output")
+  .option("-d, --debug", "Debug")
+  .option("-l, --landscape", "Landscape printing", false)
+  .option("-s, --page-size [size]", "Print to Page Size [size]")
+  .option("-w, --width [size]", "Print to Page Width [width] in MM")
+  .option("-h --height [size]", "Print to Page Height [weight] in MM")
+  // .option("-m, --page-margin [margin]", "Print with margin [margin]")
+  // .option("-n, --hyphenate [lang]", "Hyphenate with language [language], defaults to "en-us"")
+  // .option("-hi, --hypher_ignore [str]", "Ignore passed element selectors, such as ".class_to_ignore, h1"")
+  // .option("-ho, --hypher_only [str]", "Only hyphenate passed elements selector, such as ".hyphenate, aside"")
+  // .option("-e, --encoding [type]", "Set the encoding of the input html, defaults to "utf-8"")
+  .option("-t, --timeout [ms]", "Set a max timeout of [ms]")
+  .option("-x, --html", "output html file")
+  .option("-b, --blockLocal", "Disallow access to filesystem for local files")
+  .option("--outline-tags [tags]", "Specifies that an outline should be " +
+          "generated for the resulting PDF document. [tags] specifies which " +
+          "HTML tags should be considered for that outline. " +
+          "\"h1,h2\" will trigger an outline with \"h1\" tags as root elements " +
+          "and \"h2\" elements as their childs.")
   .parse(process.argv);
 
 
@@ -38,19 +38,17 @@ let input = program.inputs || program.args[0];
 
 let dir = process.cwd();
 
-let url;
 let relativePath;
 let allowLocal;
 try {
-  url = new URL(input);
+  new URL(input);
   allowLocal = false;
-} catch {
+} catch (error) {
   relativePath = path.resolve(dir, input);
   allowLocal = !program.blockLocal;
 }
 
 let output;
-let tmpFile, tmpPath;
 
 let headless = typeof program.debug === "undefined";
 
@@ -64,7 +62,7 @@ if (!input) {
 
 if (relativePath) {
 
-  if (['.html', '.xhtml'].indexOf(path.extname(relativePath)) === -1) {
+  if ([".html", ".xhtml"].indexOf(path.extname(relativePath)) === -1) {
     console.error("Must pass a html or xhtml file as input");
     return process.exit(1);
   }
@@ -80,7 +78,7 @@ if (relativePath) {
 if (typeof(program.output) === "string") {
   output = path.resolve(dir, program.output);
 } else if (typeof(program.output) !== "undefined") {
-  output = './' + replaceExt(path.basename(input), '.pdf');
+  output = "./" + replaceExt(path.basename(input), ".pdf");
 } else {
   output = "output.pdf";
 }
@@ -88,7 +86,7 @@ if (typeof(program.output) === "string") {
 
 const spinner = ora({
   spinner: "circleQuarters"
-})
+});
 
 
 if (typeof input === "string") {
@@ -106,7 +104,7 @@ if (typeof input === "string") {
 
       spinner.start("Rendering: Page " + (page.position + 1));
     } else {
-      spinner.text = "Rendering: Page " + (page.position + 1)
+      spinner.text = "Rendering: Page " + (page.position + 1);
     }
   });
 
@@ -125,9 +123,9 @@ if (typeof input === "string") {
     let options = {};
     if (program.html) {
       file = await printer.html(input, options);
-      output = replaceExt(output, '.html');
+      output = replaceExt(output, ".html");
     } else {
-      options.outlineTags = !program.outlineTags ? [] : program.outlineTags.split(',');
+      options.outlineTags = !program.outlineTags ? [] : program.outlineTags.split(",");
       file = await printer.pdf(input, options);
     }
   } else {
diff --git a/package-lock.json b/package-lock.json
index 9830fd6..7797f17 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,22 +1,22 @@
 {
   "name": "pagedjs-cli",
-  "version": "0.0.4",
+  "version": "0.0.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
-      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
       "dev": true,
       "requires": {
         "@babel/highlight": "^7.0.0"
       }
     },
     "@babel/highlight": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
-      "integrity": "sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==",
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
       "dev": true,
       "requires": {
         "chalk": "^2.0.0",
@@ -41,14 +41,6 @@
         "regenerator-runtime": "^0.13.2"
       }
     },
-    "@pdf-lib/fontkit": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/@pdf-lib/fontkit/-/fontkit-0.0.4.tgz",
-      "integrity": "sha512-MfwaMqLKRuXXOuTisAUiie+cBH/Wo50SPBDQB5tmVqEHpJGkyh7eYi/xPgFugtPHEeWP6INUk5t9L7IAbV7jmw==",
-      "requires": {
-        "pako": "^1.0.6"
-      }
-    },
     "@pdf-lib/standard-fonts": {
       "version": "0.0.4",
       "resolved": "https://registry.npmjs.org/@pdf-lib/standard-fonts/-/standard-fonts-0.0.4.tgz",
@@ -59,38 +51,38 @@
       }
     },
     "accepts": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+      "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
       "requires": {
-        "mime-types": "~2.1.18",
-        "negotiator": "0.6.1"
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
       }
     },
     "acorn": {
-      "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-      "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
+      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
       "dev": true
     },
     "acorn-jsx": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
-      "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
+      "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
       "dev": true
     },
     "agent-base": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
-      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
       "requires": {
         "es6-promisify": "^5.0.0"
       }
     },
     "ajv": {
-      "version": "6.10.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
-      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
@@ -140,9 +132,9 @@
       "dev": true
     },
     "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
     },
     "balanced-match": {
       "version": "1.0.0",
@@ -155,20 +147,20 @@
       "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
     },
     "body-parser": {
-      "version": "1.18.3",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
-      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+      "version": "1.19.0",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
+      "integrity": "sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==",
       "requires": {
-        "bytes": "3.0.0",
+        "bytes": "3.1.0",
         "content-type": "~1.0.4",
         "debug": "2.6.9",
         "depd": "~1.1.2",
-        "http-errors": "~1.6.3",
-        "iconv-lite": "0.4.23",
+        "http-errors": "1.7.2",
+        "iconv-lite": "0.4.24",
         "on-finished": "~2.3.0",
-        "qs": "6.5.2",
-        "raw-body": "2.3.3",
-        "type-is": "~1.6.16"
+        "qs": "6.7.0",
+        "raw-body": "2.4.0",
+        "type-is": "~1.6.17"
       }
     },
     "brace-expansion": {
@@ -186,9 +178,9 @@
       "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A=="
     },
     "bytes": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
-      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
+      "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
     },
     "callsites": {
       "version": "3.1.0",
@@ -213,17 +205,17 @@
       "dev": true
     },
     "cli-cursor": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
-      "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",
+      "integrity": "sha512-I/zHAwsKf9FqGoXM4WWRACob9+SNukZTd94DWF57E4toouRulbCxcUh6RKUEOQlYTHJnzkPMySvPNaaSLNfLZw==",
       "requires": {
-        "restore-cursor": "^2.0.0"
+        "restore-cursor": "^3.1.0"
       }
     },
     "cli-spinners": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-2.1.0.tgz",
-      "integrity": "sha512-8B00fJOEh1HPrx4fo5eW16XmE1PcL1tGpGrxy63CXGP9nHdPBN63X75hA1zhvQuhVztJWLqV58Roj2qlNM7cAA=="
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-2.2.0.tgz",
+      "integrity": "sha512-tgU3fKwzYjiLEQgPMD9Jt+JjHVL9kW93FiIMX/l7rivvOD4/LL0Mf7gda3+4U2KJBloybwgj5KEoQgGRioMiKQ=="
     },
     "cli-width": {
       "version": "2.2.0",
@@ -250,9 +242,9 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
     },
     "commander": {
-      "version": "2.20.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ=="
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
+      "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow=="
     },
     "concat-map": {
       "version": "0.0.1",
@@ -271,9 +263,12 @@
       }
     },
     "content-disposition": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
+      "integrity": "sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==",
+      "requires": {
+        "safe-buffer": "5.1.2"
+      }
     },
     "content-type": {
       "version": "1.0.4",
@@ -281,9 +276,9 @@
       "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
     },
     "cookie": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.0.tgz",
+      "integrity": "sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg=="
     },
     "cookie-signature": {
       "version": "1.0.6",
@@ -311,6 +306,14 @@
         "semver": "^5.5.0",
         "shebang-command": "^1.2.0",
         "which": "^1.2.9"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        }
       }
     },
     "css-tree": {
@@ -408,9 +411,9 @@
       }
     },
     "es6-promise": {
-      "version": "4.2.6",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.6.tgz",
-      "integrity": "sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q=="
+      "version": "4.2.8",
+      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
+      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w=="
     },
     "es6-promisify": {
       "version": "5.0.0",
@@ -440,47 +443,48 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
     "eslint": {
-      "version": "5.16.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.16.0.tgz",
-      "integrity": "sha512-S3Rz11i7c8AA5JPv7xAH+dOyq/Cu/VXHiHXBPOU1k/JAM5dXqQPt3qcrhpHSorXmrpu2g0gkIBVXAqCpzfoZIg==",
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.5.1.tgz",
+      "integrity": "sha512-32h99BoLYStT1iq1v2P9uwpyznQ4M2jRiFB6acitKz52Gqn+vPaMDUTB1bYi1WN4Nquj2w+t+bimYUG83DC55A==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
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+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.0.tgz",
+      "integrity": "sha512-usZBT3PW+LOjM25wbqIlZwPeJV+3OSz3M1k1Ws8snlW39dZyYL9lOGC5FgPVHfk0jKmjiDV8Z0mIbVQPiwFs7g==",
+      "dev": true
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -1684,6 +1771,11 @@
         "isexe": "^2.0.0"
       }
     },
+    "wicked-good-xpath": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/wicked-good-xpath/-/wicked-good-xpath-1.3.0.tgz",
+      "integrity": "sha1-gbDpXoZQ5JyUsiKY//hoa1VTz2w="
+    },
     "wordwrap": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
@@ -1712,6 +1804,11 @@
         "async-limiter": "~1.0.0"
       }
     },
+    "xmldom-sre": {
+      "version": "0.1.31",
+      "resolved": "https://registry.npmjs.org/xmldom-sre/-/xmldom-sre-0.1.31.tgz",
+      "integrity": "sha512-f9s+fUkX04BxQf+7mMWAp5zk61pciie+fFLC9hX9UVvCeJQfNHRHXpeo5MPcR0EUf57PYLdt+ZO4f3Ipk2oZUw=="
+    },
     "yauzl": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
diff --git a/package.json b/package.json
index c1117c5..6bff6fd 100644
--- a/package.json
+++ b/package.json
@@ -11,24 +11,25 @@
   "bin": "./bin/paged",
   "scripts": {
     "start": "./bin/paged",
-    "build": "pkg ."
+    "build": "pkg .",
+    "lint": "./node_modules/.bin/eslint src bin/paged"
   },
   "main": "index.js",
   "dependencies": {
-    "commander": "^2.20.0",
-    "express": "^4.16.4",
-    "hyphenopoly": "^3.0.1",
-    "katex": "^0.10.1",
-    "lodash": "^4.17.11",
-    "mathjax": "^2.7.5",
-    "node-fetch": "^2.4.1",
-    "ora": "^3.4.0",
-    "pagedjs": "^0.1.34",
-    "pdf-lib": "^0.6.1",
-    "puppeteer": "^1.15.0",
+    "commander": "^3.0.2",
+    "express": "^4.17.1",
+    "hyphenopoly": "^3.2.1",
+    "katex": "^0.11.1",
+    "lodash": "^4.17.15",
+    "mathjax": "^3.0.0",
+    "node-fetch": "^2.6.0",
+    "ora": "^4.0.2",
+    "pagedjs": "0.1.34",
+    "pdf-lib": "^1.2.0",
+    "puppeteer": "^1.20.0",
     "replace-ext": "^1.0.0"
   },
   "devDependencies": {
-    "eslint": "^5.16.0"
+    "eslint": "^6.5.1"
   }
 }
diff --git a/src/postprocesser.js b/src/postprocesser.js
index 3610d5a..e53a57f 100644
--- a/src/postprocesser.js
+++ b/src/postprocesser.js
@@ -1,16 +1,16 @@
 const PDFLib = require("pdf-lib");
-const EventEmitter = require('events');
+const EventEmitter = require("events");
 
-const PDFDocumentWriter = require('./writer');
+const PDFDocumentWriter = require("./writer");
 
 class PostProcesser extends EventEmitter {
   constructor(pdf) {
     super();
 
     if (!pdf) {
-      throw "Must pass a PDF Buffer to PostProcesser"
+      throw "Must pass a PDF Buffer to PostProcesser";
     }
-    this.pdf = pdf
+    this.pdf = pdf;
     this.pdfDoc = PDFLib.PDFDocumentFactory.load(pdf);
   }
 
@@ -58,7 +58,7 @@ class PostProcesser extends EventEmitter {
       modDate: info.getMaybe("ModDate") && info.getMaybe("ModDate").string,
       creator: info.getMaybe("Creator") && info.getMaybe("Creator").string,
       producer: info.getMaybe("Producer") && info.getMaybe("Producer").string
-    }
+    };
   }
 
   updateInfoDict(meta) {
@@ -100,9 +100,9 @@ class PostProcesser extends EventEmitter {
   }
 
   addXmpMetadata(meta) {
-    const charCodes = (str) => str.split('').map((c) => c.charCodeAt(0));
+    const charCodes = (str) => str.split("").map((c) => c.charCodeAt(0));
     const typedArrayFor = (str) => new Uint8Array(charCodes(str));
-    const whitespacePadding = new Array(20).fill(' '.repeat(100)).join('\n');
+    const whitespacePadding = new Array(20).fill(" ".repeat(100)).join("\n");
     const metadataXML = `
       <?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
         <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26">
@@ -124,7 +124,7 @@ class PostProcesser extends EventEmitter {
                 <rdf:Bag>
                   ${meta.keywords
                     .map((keyword) => `<rdf:li>${keyword}</rdf:li>`)
-                    .join('\n')}
+                    .join("\n")}
                 </rdf:Bag>
               </dc:subject>
             </rdf:Description>
@@ -149,8 +149,8 @@ class PostProcesser extends EventEmitter {
 
     const metadataStreamDict = PDFLib.PDFDictionary.from(
       {
-        Type: PDFLib.PDFName.from('Metadata'),
-        Subtype: PDFLib.PDFName.from('XML'),
+        Type: PDFLib.PDFName.from("Metadata"),
+        Subtype: PDFLib.PDFName.from("XML"),
         Length: PDFLib.PDFNumber.fromNumber(metadataXML.length),
       },
       this.pdfDoc.index,
@@ -163,8 +163,8 @@ class PostProcesser extends EventEmitter {
 
     const metadataStreamRef = this.pdfDoc.register(metadataStream);
 
-    this.pdfDoc.catalog.set('Metadata', metadataStreamRef);
-  };
+    this.pdfDoc.catalog.set("Metadata", metadataStreamRef);
+  }
 
   boxes(pages) {
     const pdfPages = this.pdfDoc.getPages();
@@ -205,17 +205,17 @@ class PostProcesser extends EventEmitter {
 
   /**
    * Adds a table of content to the generated PDF
-   * 
+   *
    * Ideally this would not be required if Chromium would add this directly.
    * So if these bugs are closed this can probably be removed again:
    * - https://bugs.chromium.org/p/chromium/issues/detail?id=840455
    * - https://github.com/GoogleChrome/puppeteer/issues/1778
-   * 
+   *
    * This code is heavily based on @Hopding's comment at:
    * https://github.com/Hopding/pdf-lib/issues/127#issuecomment-502450179
    */
   addOutline(outlineSpec) {
-    const outline = JSON.parse(JSON.stringify(outlineSpec))
+    const outline = JSON.parse(JSON.stringify(outlineSpec));
 
 
     const pageRefs = [];
@@ -234,7 +234,7 @@ class PostProcesser extends EventEmitter {
         count += countOutlineLayer(outlineEntry.children);
       }
       return count;
-    }
+    };
 
     const createItemsForOutlineLayer = (layer, parent) => {
       layer.forEach((outlineItem, i) => {
@@ -243,13 +243,13 @@ class PostProcesser extends EventEmitter {
         const pdfItem = createOutlineItem(outlineItem, prev, next, parent);
         index.assign(outlineItem.ref, pdfItem);
       });
-    }
+    };
 
     const createOutlineItem = (outlineItem, prev, next, parent) => {
       if (!outlineItem.id) {
         throw new Error(`Cannot generate outline item with title '${outlineItem.title} ` +
-                        `without any target anchor. Please specify an 'id' attribute for ` +
-                        `the relevant HTML element`);
+                        "without any target anchor. Please specify an 'id' attribute for " +
+                        "the relevant HTML element");
       }
       const item = {
         Title: PDFLib.PDFString.fromString(outlineItem.title),
@@ -277,14 +277,14 @@ class PostProcesser extends EventEmitter {
       for (const child of outlineEntry.children) {
         createOutlineReferences(child);
       }
-    }
+    };
 
     for (const outlineItem of outline) {
       createOutlineReferences(outlineItem);
     }
 
     createItemsForOutlineLayer(outline, outlineReference);
-    
+
     const pdfOutline = PDFLib.PDFDictionary.from(
       {
         First: outline[0].ref,
@@ -294,7 +294,7 @@ class PostProcesser extends EventEmitter {
       index,
     );
     index.assign(outlineReference, pdfOutline);
-    this.pdfDoc.catalog.set('Outlines', outlineReference);
+    this.pdfDoc.catalog.set("Outlines", outlineReference);
   }
 
   save() {
diff --git a/src/printer.js b/src/printer.js
index 662cf6a..0dfb89a 100644
--- a/src/printer.js
+++ b/src/printer.js
@@ -1,11 +1,8 @@
-const Paged = require('pagedjs');
-const EventEmitter = require('events');
-const puppeteer = require('puppeteer');
-const util = require('util');
-const fs = require('fs');
+const EventEmitter = require("events");
+const puppeteer = require("puppeteer");
 const fetch = require("node-fetch");
 
-const path = require('path');
+const path = require("path");
 
 let dir = process.cwd();
 
@@ -14,7 +11,7 @@ let pagedjsLocation = require.resolve("pagedjs/dist/paged.polyfill.js");
 let paths = pagedjsLocation.split("node_modules");
 let scriptPath = paths[0] + "node_modules" + paths[paths.length-1];
 
-const PostProcesser = require('./postprocesser');
+const PostProcesser = require("./postprocesser");
 
 class Printer extends EventEmitter {
   constructor(headless, allowLocal) {
@@ -27,7 +24,7 @@ class Printer extends EventEmitter {
   async setup() {
     const browser = await puppeteer.launch({
       headless: this.headless,
-      args: this.allowLocal ? ['--allow-file-access-from-files', '--disable-dev-shm-usage'] : ['--disable-dev-shm-usage'],
+      args: this.allowLocal ? ["--allow-file-access-from-files", "--disable-dev-shm-usage"] : ["--disable-dev-shm-usage"],
       ignoreHTTPSErrors: true
     });
 
@@ -54,10 +51,10 @@ class Printer extends EventEmitter {
         uri = new URL(input);
         if (uri.protocol === "https:") {
           html = await fetch(input)
-            .then(res => res.text())
+            .then(res => res.text());
         }
         url = input;
-      } catch {
+      } catch (error) {
         let relativePath = path.resolve(dir, input);
         url = "file://" + relativePath;
       }
@@ -101,15 +98,15 @@ class Printer extends EventEmitter {
       path: scriptPath
     });
 
-    // await page.exposeFunction('PuppeteerLogger', (msg) => {
+    // await page.exposeFunction("PuppeteerLogger", (msg) => {
     //   console.log(msg);
     // });
 
-    await page.exposeFunction('onSize', (size) => {
+    await page.exposeFunction("onSize", (size) => {
       this.emit("size", size);
     });
 
-    await page.exposeFunction('onPage', (page) => {
+    await page.exposeFunction("onPage", (page) => {
       // console.log("page", page.position + 1);
 
       this.pages.push(page);
@@ -117,7 +114,7 @@ class Printer extends EventEmitter {
       this.emit("page", page);
     });
 
-    await page.exposeFunction('onRendered', (msg, width, height, orientation) => {
+    await page.exposeFunction("onRendered", (msg, width, height, orientation) => {
       this.emit("rendered", msg, width, height, orientation);
       resolver({msg, width, height, orientation});
     });
@@ -146,7 +143,7 @@ class Printer extends EventEmitter {
             x: getPointsValue(cropbox.x) - getPointsValue(mediabox.x),
             y: getPointsValue(cropbox.y) - getPointsValue(mediabox.y)
           }
-        }
+        };
 
         window.onPage({ id, width, height, startToken, endToken, breakAfter, breakBefore, position, boxes });
       });
@@ -173,7 +170,7 @@ class Printer extends EventEmitter {
   async _parseOutline(page, tags) {
     return await page.evaluate((tags) => {
       const tagsToProcess = [];
-      for (const node of document.querySelectorAll(tags.join(','))) {
+      for (const node of document.querySelectorAll(tags.join(","))) {
         tagsToProcess.push(node);
       }
       tagsToProcess.reverse();
@@ -212,8 +209,8 @@ class Printer extends EventEmitter {
         for (const child of node.children) {
           stripParentProperty(child);
         }
-      }
-      stripParentProperty(root)
+      };
+      stripParentProperty(root);
       return root.children;
     }, tags);
   }
@@ -233,7 +230,7 @@ class Printer extends EventEmitter {
         if (tag.name) {
           meta[tag.name] = tag.content;
         }
-      })
+      });
       return meta;
     });
 
@@ -252,7 +249,7 @@ class Printer extends EventEmitter {
         bottom: 0,
         left: 0,
       }
-    }
+    };
 
     let pdf = await page.pdf(settings)
       .catch((e) => {
diff --git a/src/writer.js b/src/writer.js
index 5907bab..0b64849 100644
--- a/src/writer.js
+++ b/src/writer.js
@@ -1,9 +1,9 @@
 const PDFLib = require("pdf-lib");
 
-const isFunction = require( 'lodash/isFunction' );
-const last = require( 'lodash/last' );
-const sortBy = require( 'lodash/sortBy' );
-const PDFXRefTableFactory  = require( 'pdf-lib/lib/core/pdf-structures/factories/PDFXRefTableFactory' ).default;
+const isFunction = require( "lodash/isFunction" );
+const last = require( "lodash/last" );
+const sortBy = require( "lodash/sortBy" );
+const PDFXRefTableFactory  = require( "pdf-lib/lib/core/pdf-structures/factories/PDFXRefTableFactory" ).default;
 
 const createIndirectObjectsFromIndex = ({ index }) => {
   let catalogRef;
@@ -45,7 +45,7 @@ class PDFDocumentWriter extends PDFLib.PDFDocumentWriter {
       nonStreamObjects,
     } = createIndirectObjectsFromIndex(pdfDoc.index);
 
-    if (!catalogRef) error('Missing PDFCatalog');
+    if (!catalogRef) console.error("Missing PDFCatalog");
     streamObjects.forEach((streamObj) => {
       if (isFunction(streamObj.pdfObject.encode)) streamObj.pdfObject.encode();
     });
@@ -53,7 +53,7 @@ class PDFDocumentWriter extends PDFLib.PDFDocumentWriter {
     const merged = [...streamObjects, ...nonStreamObjects];
 
     const offsets = computeOffsets(pdfDoc.header.bytesSize(), merged);
-    const sortedOffsets = sortBy(offsets, 'objectNumber');
+    const sortedOffsets = sortBy(offsets, "objectNumber");
 
     /* ===== (2) Create XRefTable and Trailer ===== */
     const table = PDFXRefTableFactory.forOffsets(sortedOffsets);
@@ -74,6 +74,8 @@ class PDFDocumentWriter extends PDFLib.PDFDocumentWriter {
     const bufferSize = tableOffset + table.bytesSize() + trailer.bytesSize();
     const buffer = new Uint8Array(bufferSize);
 
+    /* eslint-disable no-unused-vars */
+    // TODO: how is remaining used?
     let remaining = pdfDoc.header.copyBytesInto(buffer);
     remaining = merged.reduce(
       (remBytes, indirectObj) => indirectObj.copyBytesInto(remBytes),
@@ -81,6 +83,7 @@ class PDFDocumentWriter extends PDFLib.PDFDocumentWriter {
     );
     remaining = table.copyBytesInto(remaining);
     remaining = trailer.copyBytesInto(remaining);
+    /* eslint-enable no-unused-vars */
 
     return buffer;
   }
-- 
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