WIP - add extractor, generate snippet_data

node_modules/mini-svg-data-uri/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Taylor Hunt
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/mini-svg-data-uri/README.md

@@ -0,0 +1,98 @@
+Mini SVG `data:` URI
+====================
+
+This tool converts SVGs into the most compact, compressible `data:` URI that SVG-supporting browsers tolerate. The results look like this (169 bytes):
+
+```url
+data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'
+%3e%3cpath d='M22 38V51L32 32l19-19v12C44 26 43 10 38 0 52 15 49 39 22 38z'/%3e
+%3c/svg%3e
+```
+
+Compare to the Base64 version (210 bytes):
+
+```url
+data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIH
+ZpZXdCb3g9IjAgMCA1MCA1MCI+PHBhdGggZD0iTTIyIDM4VjUxTDMyIDMybDE5LTE5djEyQzQ0IDI2ID
+QzIDEwIDM4IDAgNTIgMTUgNDkgMzkgMjIgMzh6Ii8+PC9zdmc+
+```
+
+Or the URL-encoded version other tools produce (256 bytes):
+
+```url
+data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%
+2F2000%2Fsvg%22%20viewBox%3D%220%200%2050%2050%22%3E%3Cpath%20d%3D%22M22%2038V51
+L32%2032l19-19v12C44%2026%2043%2010%2038%200%2052%2015%2049%2039%2022%2038z%22%2
+F%3E%3C%2Fsvg%3E
+```
+
+For a more realistic example, I inlined the icons from the [Open Iconic](https://useiconic.com/open) project into CSS files with the 3 above methods:
+
+| Compression | Base64    | Basic %-encoding | `mini-svg-data-uri` |
+|-------------|----------:|-----------------:|--------------------:|
+| None        | 96.459 kB | 103.268 kB       | 76.583 kB           |
+| `gzip -9`   | 17.902 kB | 13.780 kB        | 12.974 kB           |
+| `brotli -Z` | 15.797 kB | 11.693 kB        | 10.976 kB           |
+
+Roughly 6% smaller compressed, but don't write off the ≈20% uncompressed savings either. [Some browser caches decompress before store](https://blogs.msdn.microsoft.com/ieinternals/2014/10/21/compressing-the-web/), and parsing time/memory usage scale linearly with uncompressed filesize.
+
+
+Usage
+-----
+
+```js
+var svgToMiniDataURI = require('mini-svg-data-uri');
+
+var svg = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 50 50"><path d="M22 38V51L32 32l19-19v12C44 26 43 10 38 0 52 15 49 39 22 38z"/></svg>';
+
+var optimizedSVGDataURI = svgToMiniDataURI(svg);
+// "data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'%3e%3cpath d='M22 38V51L32 32l19-19v12C44 26 43 10 38 0 52 15 49 39 22 38z'/%3e%3c/svg%3e"
+```
+
+You can also [try it in your browser at RunKit](https://npm.runkit.com/mini-svg-data-uri).
+
+### Warning
+
+* This **does not optimize the SVG source file**. You’ll want [svgo](https://github.com/svg/svgo) or its brother [SVGOMG](https://jakearchibald.github.io/svgomg/) for that.
+
+* The default output **does not work inside `srcset` attributes**. Use the `.toSrcset` method for that:
+
+  ```js
+  var srcsetExample = html`
+  <picture>
+    <source srcset="${svgToMiniDataURI.toSrcset(svg)}">
+    <img src="${svgToMiniDataURI(svg)}">
+  </picture>`;
+  ```
+
+* The resulting Data URI should be wrapped with double quotes: `url("…")`, `<img src="…">`, etc.
+
+* This might change or break SVGs that use `"` in character data, like inside `<text>` or `aria-label` or something. Try curly quotes (`“”`)  or `&quot;` instead.
+
+
+FAQ
+---
+
+### Don’t you need a `charset` in the MIME Type?
+
+`charset` does nothing for Data URIs. The URI can only be the encoding of its parent file — it’s included in it!
+
+### Why lowercase the URL-encoded hex pairs?
+
+It compresses slightly better. No, really. Using the same files from earlier:
+
+| Compression | Uppercase (`%AF`) | Lowercase (`%af`) |
+|-------------|------------------:|------------------:|
+| `gzip -9`   | 12.978 kB         | 12.974 kB         |
+| `brotli -Z` | 10.988 kB         | 10.976 kB         |
+
+I did say *slightly*.
+
+
+Browser support
+---------------
+
+* Internet Explorer 9 and up, including Edge
+* Firefox, Safari, Chrome, whatever else uses their engines
+* Android WebKit 3+
+* Opera Mini’s server-side Presto

node_modules/mini-svg-data-uri/index.js

@@ -0,0 +1,55 @@
+var shorterNames = require('./shorter-css-color-names');
+var REGEX = {
+  whitespace: /\s+/g,
+  urlHexPairs: /%[\dA-F]{2}/g,
+  quotes: /"/g,
+}
+
+function collapseWhitespace(str) {
+  return str.trim().replace(REGEX.whitespace, ' ');
+}
+
+function dataURIPayload(string) {
+  return encodeURIComponent(string)
+    .replace(REGEX.urlHexPairs, specialHexEncode);
+}
+
+// `#` gets converted to `%23`, so quite a few CSS named colors are shorter than
+// their equivalent URL-encoded hex codes.
+function colorCodeToShorterNames(string) {
+  Object.keys(shorterNames).forEach(function(key) {
+    if (shorterNames[key].test(string)) {
+      string = string.replace(shorterNames[key], key);
+    }
+  });
+
+  return string;
+}
+
+function specialHexEncode(match) {
+  switch (match) { // Browsers tolerate these characters, and they're frequent
+    case '%20': return ' ';
+    case '%3D': return '=';
+    case '%3A': return ':';
+    case '%2F': return '/';
+    default: return match.toLowerCase(); // compresses better
+  }
+}
+
+function svgToTinyDataUri(svgString) {
+  if (typeof svgString !== 'string') {
+    throw new TypeError('Expected a string, but received ' + typeof svgString);
+  }
+  // Strip the Byte-Order Mark if the SVG has one
+  if (svgString.charCodeAt(0) === 0xfeff) { svgString = svgString.slice(1) }
+
+  var body = colorCodeToShorterNames(collapseWhitespace(svgString))
+    .replace(REGEX.quotes, "'");
+  return 'data:image/svg+xml,' + dataURIPayload(body);
+}
+
+svgToTinyDataUri.toSrcset = function toSrcset(svgString) {
+  return svgToTinyDataUri(svgString).replace(/ /g, '%20');
+}
+
+module.exports = svgToTinyDataUri;

node_modules/mini-svg-data-uri/package.json

@@ -0,0 +1,53 @@
+{
+  "_from": "mini-svg-data-uri@^1.0.0",
+  "_id": "mini-svg-data-uri@1.1.3",
+  "_inBundle": false,
+  "_integrity": "sha512-EeKOmdzekjdPe53/GdxmUpNgDQFkNeSte6XkJmOBt4BfWL6FQ9G9RtLNh+JMjFS3LhdpSICMIkZdznjiecASHQ==",
+  "_location": "/mini-svg-data-uri",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "mini-svg-data-uri@^1.0.0",
+    "name": "mini-svg-data-uri",
+    "escapedName": "mini-svg-data-uri",
+    "rawSpec": "^1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.0"
+  },
+  "_requiredBy": [
+    "/gatsby-plugin-sharp"
+  ],
+  "_resolved": "https://registry.npmjs.org/mini-svg-data-uri/-/mini-svg-data-uri-1.1.3.tgz",
+  "_shasum": "9759ee5f4d89a4b724d089ce52eab4b623bfbc88",
+  "_spec": "mini-svg-data-uri@^1.0.0",
+  "_where": "/Users/stefanfejes/Projects/30-seconds-of-python-code/node_modules/gatsby-plugin-sharp",
+  "author": {
+    "name": "Taylor “Tigt” Hunt",
+    "email": "holla@ti.gt",
+    "url": "https://ti.gt/"
+  },
+  "bugs": {
+    "url": "https://github.com/tigt/mini-svg-data-uri/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Small, efficient encoding of SVG data URIs for CSS, HTML, etc.",
+  "homepage": "https://github.com/tigt/mini-svg-data-uri#readme",
+  "keywords": [
+    "svg",
+    "url",
+    "data",
+    "uri",
+    "minification",
+    "url encoding"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "mini-svg-data-uri",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tigt/mini-svg-data-uri.git"
+  },
+  "version": "1.1.3"
+}

node_modules/mini-svg-data-uri/shorter-css-color-names.js

@@ -0,0 +1,56 @@
+module.exports = {
+  aqua: /#00ffff(ff)?(?!\w)|#0ff(f)?(?!\w)/gi,
+  azure: /#f0ffff(ff)?(?!\w)/gi,
+  beige: /#f5f5dc(ff)?(?!\w)/gi,
+  bisque: /#ffe4c4(ff)?(?!\w)/gi,
+  black: /#000000(ff)?(?!\w)|#000(f)?(?!\w)/gi,
+  blue: /#0000ff(ff)?(?!\w)|#00f(f)?(?!\w)/gi,
+  brown: /#a52a2a(ff)?(?!\w)/gi,
+  coral: /#ff7f50(ff)?(?!\w)/gi,
+  cornsilk: /#fff8dc(ff)?(?!\w)/gi,
+  crimson: /#dc143c(ff)?(?!\w)/gi,
+  cyan: /#00ffff(ff)?(?!\w)|#0ff(f)?(?!\w)/gi,
+  darkblue: /#00008b(ff)?(?!\w)/gi,
+  darkcyan: /#008b8b(ff)?(?!\w)/gi,
+  darkgrey: /#a9a9a9(ff)?(?!\w)/gi,
+  darkred: /#8b0000(ff)?(?!\w)/gi,
+  deeppink: /#ff1493(ff)?(?!\w)/gi,
+  dimgrey: /#696969(ff)?(?!\w)/gi,
+  gold: /#ffd700(ff)?(?!\w)/gi,
+  green: /#008000(ff)?(?!\w)/gi,
+  grey: /#808080(ff)?(?!\w)/gi,
+  honeydew: /#f0fff0(ff)?(?!\w)/gi,
+  hotpink: /#ff69b4(ff)?(?!\w)/gi,
+  indigo: /#4b0082(ff)?(?!\w)/gi,
+  ivory: /#fffff0(ff)?(?!\w)/gi,
+  khaki: /#f0e68c(ff)?(?!\w)/gi,
+  lavender: /#e6e6fa(ff)?(?!\w)/gi,
+  lime: /#00ff00(ff)?(?!\w)|#0f0(f)?(?!\w)/gi,
+  linen: /#faf0e6(ff)?(?!\w)/gi,
+  maroon: /#800000(ff)?(?!\w)/gi,
+  moccasin: /#ffe4b5(ff)?(?!\w)/gi,
+  navy: /#000080(ff)?(?!\w)/gi,
+  oldlace: /#fdf5e6(ff)?(?!\w)/gi,
+  olive: /#808000(ff)?(?!\w)/gi,
+  orange: /#ffa500(ff)?(?!\w)/gi,
+  orchid: /#da70d6(ff)?(?!\w)/gi,
+  peru: /#cd853f(ff)?(?!\w)/gi,
+  pink: /#ffc0cb(ff)?(?!\w)/gi,
+  plum: /#dda0dd(ff)?(?!\w)/gi,
+  purple: /#800080(ff)?(?!\w)/gi,
+  red: /#ff0000(ff)?(?!\w)|#f00(f)?(?!\w)/gi,
+  salmon: /#fa8072(ff)?(?!\w)/gi,
+  seagreen: /#2e8b57(ff)?(?!\w)/gi,
+  seashell: /#fff5ee(ff)?(?!\w)/gi,
+  sienna: /#a0522d(ff)?(?!\w)/gi,
+  silver: /#c0c0c0(ff)?(?!\w)/gi,
+  skyblue: /#87ceeb(ff)?(?!\w)/gi,
+  snow: /#fffafa(ff)?(?!\w)/gi,
+  tan: /#d2b48c(ff)?(?!\w)/gi,
+  teal: /#008080(ff)?(?!\w)/gi,
+  thistle: /#d8bfd8(ff)?(?!\w)/gi,
+  tomato: /#ff6347(ff)?(?!\w)/gi,
+  violet: /#ee82ee(ff)?(?!\w)/gi,
+  wheat: /#f5deb3(ff)?(?!\w)/gi,
+  white: /#ffffff(ff)?(?!\w)|#fff(f)?(?!\w)/gi,
+};