From 9fe5e221e530c7649532f48a17cdce060548da5d Mon Sep 17 00:00:00 2001
From: Erik Demaine <edemaine@mit.edu>
Date: Mon, 23 Jul 2018 13:16:45 -0400
Subject: [PATCH] Switch from nomnom to commander (#1496)

* Switch from nomnom to commander

* Fix #1489
* --macro repeatable option replaced with single --macros option with ";"
  separator (until https://github.com/tj/commander.js/issues/674)
* Add missing --max-expand option
* Replace expired --unicode-text-in-math-mode option with --strict
  (https://github.com/Khan/KaTeX/issues/1483#issuecomment-405108291)
* Add instructions for how to run in the opening comments
* Clean up option doc strings

* Implement @ylemkimon's comments

* Fix try/const bug

* Fix use of --selenium-ip

It was a quirk that --seleniumIP worked.  --help lists --selenium-ip.

* Implement comments, restore --macro repeatable argument

* Cleanup

* Restore 0 default for maxExpand

* Fix more comments from @ylemkimon

* npm run dist -> npm run build

In preparation for #1500

* Fix line length error
---
 .circleci/config.yml                   |    2 +-
 cli.js                                 |  160 +--
 dockers/Screenshotter/screenshotter.js |  103 +-
 package-lock.json                      | 1511 +-----------------------
 package.json                           |    2 +-
 test/symgroups.js                      |   10 +-
 6 files changed, 131 insertions(+), 1657 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6bb43626..1904dd3c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -21,7 +21,7 @@ defaults: &defaults
 
     - run:
         name: Verify screenshots and generate diffs and new screenshots
-        command: node dockers/Screenshotter/screenshotter.js --seleniumIP localhost -b $CIRCLE_JOB --verify --diff --new
+        command: node dockers/Screenshotter/screenshotter.js --selenium-ip localhost -b $CIRCLE_JOB --verify --diff --new
 
     - store_artifacts:
         path: test/screenshotter/new
diff --git a/cli.js b/cli.js
index aacc94dc..8f43b9ba 100755
--- a/cli.js
+++ b/cli.js
@@ -1,103 +1,67 @@
 #!/usr/bin/env node
 // Simple CLI for KaTeX.
 // Reads TeX from stdin, outputs HTML to stdout.
+// To run this from the repository, you must first build KaTeX by running
+// `npm install` and `npm run build`.
+
 /* eslint no-console:0 */
 
-const katex = require("./");
+let katex;
+try {
+    katex = require("./");
+} catch (e) {
+    console.error(
+        "KaTeX could not import, likely because dist/katex.js is missing.");
+    console.error("Please run 'npm install' and 'npm run build' before running");
+    console.error("cli.js from the KaTeX repository.");
+    console.error();
+    throw e;
+}
+const {version} = require("./package.json");
 const fs = require("fs");
 
-const options = require("nomnom")
-    .option("displayMode", {
-        full: "display-mode",
-        abbr: "d",
-        flag: true,
-        default: false,
-        help: "If true the math will be rendered in display " +
-              "mode, which will put the math in display style " +
-              "(so \\int and \\sum are large, for example), and " +
-              "will center the math on the page on its own line.",
-    })
-    .option("throwOnError", {
-        full: "no-throw-on-error",
-        abbr: "t",
-        flag: true,
-        default: true,
-        transform: function(t) {
-            return !t;
-        },
-        help: "If true, KaTeX will throw a ParseError when it " +
-              "encounters an unsupported command. If false, KaTeX " +
-              "will render the unsupported command as text in the " +
-              "color given by errorColor.",
-    })
-    .option("errorColor", {
-        full: "error-color",
-        abbr: "c",
-        metavar: "color",
-        default: "#cc0000",
-        transform: function(color) {
-            return "#" + color;
-        },
-        help: "A color string given in the format 'rgb' or 'rrggbb'. " +
-              "This option determines the color which unsupported " +
-              "commands are rendered in.",
-    })
-    .option("colorIsTextColor", {
-        full: "color-is-text-color",
-        abbr: "b",
-        flag: true,
-        default: false,
-        help: "Makes \\color behave like LaTeX's 2-argument \\textcolor, " +
-              "instead of LaTeX's one-argument \\color mode change.",
-    })
-    .option("unicodeTextInMathMode", {
-        full: "unicode-text-in-math-mode",
-        abbr: "u",
-        flag: true,
-        default: false,
-        help: "Add support for unicode text characters in math mode.",
-    })
-    .option("maxSize", {
-        full: "max-size",
-        abbr: "s",
-        metavar: "size",
-        default: 0,
-        help: "If non-zero, all user-specified sizes, e.g. in " +
-              "\\rule{500em}{500em}, will be capped to maxSize ems. " +
-              "Otherwise, elements and spaces can be arbitrarily large",
-    })
-    .option("macros", {
-        full: "macro",
-        abbr: "m",
-        metavar: "macro:expansion",
-        list: true,
-        default: [],
-        help: "A custom macro. Each macro is a property with a name " +
-              "like \\name which maps to a string that " +
-              "describes the expansion of the macro.",
-    })
-    .option("macroFile", {
-        full: "macro-file",
-        abbr: "f",
-        metavar: "path",
-        default: null,
-        help: "Read macro definitions from the given file.",
-    })
-    .option("inputFile", {
-        full: "input",
-        abbr: "i",
-        metavar: "path",
-        default: null,
-        help: "Read LaTeX input from the given file.",
-    })
-    .option("outputFile", {
-        full: "output",
-        abbr: "o",
-        metavar: "path",
-        default: null,
-        help: "Write html output to the given file.",
-    })
-    .parse();
+const options = require("commander")
+    .version(version)
+    .option("-d, --display-mode",
+        "Render math in display mode, which puts the math in display style " +
+        "(so \\int and \\sum are large, for example), and centers the math " +
+        "on the page on its own line.")
+    .option("-t, --no-throw-on-error",
+        "Render errors (in the color given by --error-color) instead of " +
+        "throwing a ParseError exception when encountering an error.")
+    .option("-c, --error-color <color>",
+        "A color string given in the format 'rgb' or 'rrggbb' (no #). " +
+        "This option determines the color of errors rendered by the -t option.",
+        "#cc0000",
+        (color) => "#" + color)
+    .option("-b, --color-is-text-color",
+        "Makes \\color behave like LaTeX's 2-argument \\textcolor, " +
+        "instead of LaTeX's one-argument \\color mode change.")
+    .option("-S, --strict",
+        "Turn on strict / LaTeX faithfulness mode, which throws an error " +
+        "if the input uses features that are not supported by LaTeX")
+    .option("-s, --max-size <n>",
+        "If non-zero, all user-specified sizes, e.g. in " +
+        "\\rule{500em}{500em}, will be capped to maxSize ems. " +
+        "Otherwise, elements and spaces can be arbitrarily large",
+        0, parseInt)
+    .option("-e, --max-expand <n>",
+        "Limit the number of macro expansions to the specified number, to " +
+        "prevent e.g. infinite macro loops.  If set to Infinity, the macro " +
+        "expander will try to fully expand as in LaTeX.",
+        (n) => (n === "Infinity" ? Infinity : parseInt(n)))
+    .option("-m, --macro <def>",
+        "Define custom macro of the form '\\foo:expansion' (use multiple -m " +
+        "arguments for multiple macros).",
+        (def, defs) => {
+            defs.push(def);
+            return defs;
+        }, [])
+    .option("-f, --macro-file <path>",
+        "Read macro definitions, one per line, from the given file.")
+    .option("-i, --input <path>", "Read LaTeX input from the given file.")
+    .option("-o, --output <path>", "Write html output to the given file.")
+    .parse(process.argv);
 
 
 function readMacros() {
@@ -114,7 +78,7 @@ function readMacros() {
 function splitMacros(macroStrings) {
     // Override macros from macro file (if any)
     // with macros from command line (if any)
-    macroStrings = macroStrings.concat(options.macros);
+    macroStrings = macroStrings.concat(options.macro);
 
     const macros = {};
 
@@ -132,8 +96,8 @@ function splitMacros(macroStrings) {
 function readInput() {
     let input = "";
 
-    if (options.inputFile) {
-        fs.readFile(options.inputFile, "utf-8", function(err, data) {
+    if (options.input) {
+        fs.readFile(options.input, "utf-8", function(err, data) {
             if (err) {throw err;}
             input = data.toString();
             writeOutput(input);
@@ -152,8 +116,8 @@ function readInput() {
 function writeOutput(input) {
     const output = katex.renderToString(input, options) + "\n";
 
-    if (options.outputFile) {
-        fs.writeFile(options.outputFile, output, function(err) {
+    if (options.output) {
+        fs.writeFile(options.output, output, function(err) {
             if (err) {
                 return console.log(err);
             }
diff --git a/dockers/Screenshotter/screenshotter.js b/dockers/Screenshotter/screenshotter.js
index 3264fe06..b19b67dc 100644
--- a/dockers/Screenshotter/screenshotter.js
+++ b/dockers/Screenshotter/screenshotter.js
@@ -27,74 +27,33 @@ const newDir = path.normalize(
 //////////////////////////////////////////////////////////////////////
 // Process command line arguments
 
-const opts = require("nomnom")
-    .option("browser", {
-        abbr: "b",
-        "default": "firefox",
-        help: "Name of the browser to use",
-    })
-    .option("container", {
-        abbr: "c",
-        type: "string",
-        help: "Name or ID of a running docker container to contact",
-    })
-    .option("seleniumURL", {
-        full: "selenium-url",
-        help: "Full URL of the Selenium web driver",
-    })
-    .option("seleniumIP", {
-        full: "selenium-ip",
-        help: "IP address of the Selenium web driver",
-    })
-    .option("seleniumPort", {
-        full: "selenium-port",
-        "default": 4444,
-        help: "Port number of the Selenium web driver",
-    })
-    .option("katexURL", {
-        full: "katex-url",
-        help: "Full URL of the KaTeX development server",
-    })
-    .option("katexIP", {
-        full: "katex-ip",
-        help: "Full URL of the KaTeX development server",
-    })
-    .option("katexPort", {
-        full: "katex-port",
-        help: "Port number of the KaTeX development server",
-    })
-    .option("include", {
-        abbr: "i",
-        help: "Comma-separated list of test cases to process",
-    })
-    .option("exclude", {
-        abbr: "x",
-        help: "Comma-separated list of test cases to exclude",
-    })
-    .option("reload", {
-        flag: true,
-        help: "Reload page for each test",
-    })
-    .option("verify", {
-        flag: true,
-        help: "Check whether screenshot matches current file content",
-    })
-    .option("diff", {
-        flag: true,
-        help: "With `--verify`, produce image diffs when match fails",
-    })
-    .option("new", {
-        flag: true,
-        help: "With `--verify`, generate new screenshots when match fails",
-    })
-    .option("attempts", {
-        help: "Retry this many times before reporting failure",
-        "default": 5,
-    })
-    .option("wait", {
-        help: "Wait this many seconds between page load and screenshot",
-    })
-    .parse();
+const opts = require("commander")
+    .option("-b, --browser <firefox|chrome>",
+        "Name of the browser to use", "firefox")
+    .option("-c, --container <id>",
+        "Name or ID of a running docker container to contact")
+    .option("--selenium-url <url>", "Full URL of the Selenium web driver")
+    .option("--selenium-ip <ip>", "IP address of the Selenium web driver")
+    .option("--selenium-port <n>",
+        "Port number of the Selenium web driver", 4444, parseInt)
+    .option("--katex-url <url>", "Full URL of the KaTeX development server")
+    .option("--katex-ip <ip>", "IP address of the KaTeX development server")
+    .option("--katex-port <n>",
+        "Port number of the KaTeX development server", parseInt)
+    .option("-i, --include <tests>",
+        "Comma-separated list of test cases to process")
+    .option("-x, --exclude <tests>",
+        "Comma-separated list of test cases to exclude")
+    .option("--reload", "Reload page for each test")
+    .option("--verify", "Check whether screenshot matches current file content")
+    .option("--diff", "With `--verify`, produce image diffs when match fails")
+    .option("--new",
+        "With `--verify`, generate new screenshots when match fails")
+    .option("--attempts <n>",
+        "Retry this many times before reporting failure", 5, parseInt)
+    .option("--wait <secs>",
+        "Wait this many seconds between page load and screenshot", parseFloat)
+    .parse(process.argv);
 
 let listOfCases;
 if (opts.include) {
@@ -109,11 +68,11 @@ if (opts.exclude) {
     });
 }
 
-let seleniumURL = opts.seleniumURL;
-let seleniumIP = opts.seleniumIP;
+let seleniumURL = opts.seleniumUrl;
+let seleniumIP = opts.seleniumIp;
 let seleniumPort = opts.seleniumPort;
-let katexURL = opts.katexURL;
-let katexIP = opts.katexIP;
+let katexURL = opts.katexUrl;
+let katexIP = opts.katexIp;
 let katexPort = opts.katexPort;
 
 //////////////////////////////////////////////////////////////////////
diff --git a/package-lock.json b/package-lock.json
index 8b69e084..77a2f6e2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -64,28 +64,6 @@
         "chalk": "^2.0.0",
         "esutils": "^2.0.2",
         "js-tokens": "^3.0.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        }
       }
     },
     "@babel/template": {
@@ -439,9 +417,13 @@
       "dev": true
     },
     "ansi-styles": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-1.0.0.tgz",
-      "integrity": "sha1-yxAt8cVvUSPquLZ817mAJ6AnkXg="
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
     },
     "anymatch": {
       "version": "2.0.0",
@@ -671,15 +653,6 @@
         "postcss-value-parser": "^3.2.3"
       },
       "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
         "browserslist": {
           "version": "3.2.8",
           "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-3.2.8.tgz",
@@ -690,17 +663,6 @@
             "electron-to-chromium": "^1.3.47"
           }
         },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
         "postcss": {
           "version": "6.0.23",
           "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz",
@@ -762,15 +724,6 @@
             "supports-color": "^2.0.0"
           }
         },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
-        },
         "supports-color": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
@@ -2054,13 +2007,14 @@
       }
     },
     "chalk": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-0.4.0.tgz",
-      "integrity": "sha1-UZmj3c0MHv4jvAjBsCewYXbgxk8=",
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
+      "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
+      "dev": true,
       "requires": {
-        "ansi-styles": "~1.0.0",
-        "has-color": "~0.1.0",
-        "strip-ansi": "~0.1.0"
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
       }
     },
     "character-entities": {
@@ -2107,26 +2061,6 @@
         "semver": "^5.4.1"
       },
       "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
         "minimist": {
           "version": "1.2.0",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
@@ -2389,10 +2323,9 @@
       }
     },
     "commander": {
-      "version": "2.13.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
-      "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
-      "dev": true
+      "version": "2.16.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.16.0.tgz",
+      "integrity": "sha512-sVXqklSaotK9at437sFlFpyOcJonxe0yST/AG9DkQKUdIE6IqGIMv4SfAQSKaJbSdVEJYItASCrBiVQHq1HQew=="
     },
     "commondir": {
       "version": "1.0.1",
@@ -2660,26 +2593,6 @@
         "timsort": "^0.3.0"
       },
       "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
         "postcss": {
           "version": "6.0.23",
           "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz",
@@ -2719,26 +2632,6 @@
         "source-list-map": "^2.0.0"
       },
       "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
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@@ -4910,11 +4712,6 @@
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@@ -6385,28 +6100,6 @@
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@@ -6426,28 +6119,6 @@
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@@ -6600,28 +6271,6 @@
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@@ -6642,28 +6291,6 @@
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@@ -6679,15 +6306,6 @@
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@@ -6714,17 +6332,6 @@
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@@ -6811,28 +6418,6 @@
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@@ -6913,15 +6498,6 @@
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@@ -6948,17 +6524,6 @@
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-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
         "cliui": {
           "version": "4.1.0",
           "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
@@ -14090,15 +12683,6 @@
           "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
           "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
           "dev": true
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
         }
       }
     },
@@ -14112,28 +12696,6 @@
         "log-symbols": "^2.1.0",
         "loglevelnext": "^1.0.1",
         "uuid": "^3.1.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-          "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        }
       }
     },
     "webpack-sources": {
@@ -14270,15 +12832,6 @@
             "is-fullwidth-code-point": "^1.0.0",
             "strip-ansi": "^3.0.0"
           }
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
         }
       }
     },
diff --git a/package.json b/package.json
index 2b9a94ae..b262887e 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "dist:zip": "cd dist && tar czf ../katex.tar.gz * && zip -rq ../katex.zip *"
   },
   "dependencies": {
-    "nomnom": "^1.8.1"
+    "commander": "^2.16.0"
   },
   "husky": {
     "hooks": {
diff --git a/test/symgroups.js b/test/symgroups.js
index ecfd4876..f7613a76 100644
--- a/test/symgroups.js
+++ b/test/symgroups.js
@@ -4,12 +4,10 @@
 const fs = require("fs");
 const childProcess = require("child_process");
 
-const opts = require("nomnom")
-    .option("spacing", {
-        flag: true,
-        help: "Print mismatches involving spacing commands",
-    })
-    .parse();
+const opts = require("commander")
+    .option("-s, --spacing",
+        "Print mismatches involving spacing commands")
+    .parse(process.argv);
 
 const symbols = require("../src/symbols");
 const keys = Object.keys(symbols.math);