Add save svg-badge directly to gist

This adds the posibility of saving an SVG badge generated by the same
shields.io dirictly to the gist. Instead of prepering a JSON file to
be sent to their service, we use their library directly, which outputs
an SVG file that we can save to the user’s gist.

Filenames ending in `.svg` will use this library automatically.

Additionally there is a major refactoring where the older `node:http`
library has been swapped out for `fetch`.

Also swap from node 16 to node 20

fixes #24

node_modules/char-width-table-consumer/CHANGELOG.md

@@ -0,0 +1,18 @@
+# Changelog
+
+## 1.0.0 – Apr 12, 2019
+
+- Update dependencies.
+- Same API as previous release.
+
+## 0.2.1 – Nov 15, 2018
+
+No external changes.
+
+## 0.2.0 – Nov 13, 2018
+
+- Add `loadConsumerSync()` function.
+
+## 0.1.0 – Nov 13, 2018
+
+Initial release.

node_modules/char-width-table-consumer/LICENSE

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+MIT License
+
+Copyright (c) 2018 Metabolize LLC
+
+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/char-width-table-consumer/README.md

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+# char-width-table-consumer
+
+[![version](https://img.shields.io/npm/v/char-width-table-consumer.svg?style=flat-square)][npm]
+[![license](https://img.shields.io/npm/l/char-width-table-consumer.svg?style=flat-square)][npm]
+[![build](https://img.shields.io/circleci/project/github/metabolize/anafanafo.svg?style=flat-square)][build]
+[![code style](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)][prettier]
+[![lerna](https://img.shields.io/badge/maintained%20with-lerna-cc00ff.svg?style=flat-square)][lerna]
+
+[npm]: https://npmjs.com/char-width-table-consumer
+[build]: https://circleci.com/gh/metabolize/anafanafo/tree/master
+[prettier]: https://prettier.io/
+[lerna]: https://lernajs.io/
+
+Measure text using a character width table.
+
+[puppeteer]: https://pptr.dev/
+
+## Features
+
+This library allows efficient text measuring using a character width table.
+Create the tables using companion package [char-width-table-builder][].
+
+This performs a simple lookup, without considering kerning.
+
+Built with [Shields][] in mind.
+
+[char-width-table-builder]: https://www.npmjs.com/package/char-width-table-builder
+[shields]: https://github.com/badges/shields/
+
+## License
+
+This project is licensed under the MIT license.

node_modules/char-width-table-consumer/package.json

@@ -0,0 +1,16 @@
+{
+  "name": "char-width-table-consumer",
+  "version": "1.0.0",
+  "repository": "metabolize/anafanafo",
+  "description": "Measure text using a character width table",
+  "main": "src",
+  "scripts": {
+    "test": "jest"
+  },
+  "author": "Metabolize",
+  "license": "MIT",
+  "dependencies": {
+    "binary-search": "^1.3.5"
+  },
+  "gitHead": "4bd230d372ffe93cd9bf7f036b83be6ef5dab75e"
+}

node_modules/char-width-table-consumer/src/consumer.js

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+'use strict'
+
+const fs = require('fs')
+const bs = require('binary-search')
+const { promisify } = require('util')
+const readFile = promisify(fs.readFile)
+
+module.exports = class CharWidthTableConsumer {
+  constructor(data) {
+    this.data = data
+    this.emWidth = this.widthOf('m')
+  }
+
+  static create(data) {
+    return new CharWidthTableConsumer(data)
+  }
+
+  static async load(path) {
+    const json = await readFile(path)
+    const data = JSON.parse(json)
+    return new CharWidthTableConsumer(data)
+  }
+
+  static loadSync(path) {
+    const json = fs.readFileSync(path)
+    const data = JSON.parse(json)
+    return new CharWidthTableConsumer(data)
+  }
+
+  static isControlChar(charCode) {
+    return charCode <= 31 || charCode === 127
+  }
+
+  widthOfCharCode(charCode) {
+    if (this.constructor.isControlChar(charCode)) {
+      return 0.0
+    }
+
+    // https://github.com/darkskyapp/binary-search/pull/18
+    const index = bs(this.data, charCode, ([lower], needle) => lower - needle)
+    if (index >= 0) {
+      // The index matches the beginning of a range.
+      const [, , width] = this.data[index]
+      return width
+    } else {
+      // The index does not match the beginning of a range, which means it
+      // should be in the preceeding range A return value of `-x` means the
+      // needle would be at `x - 1`, and we want to check the element before
+      // that.
+      const candidateIndex = -index - 2
+      const [lower, upper, width] = this.data[candidateIndex]
+      if (charCode >= lower && charCode <= upper) {
+        return width
+      } else {
+        return undefined
+      }
+    }
+  }
+
+  widthOf(text, { guess = true } = {}) {
+    // Array.from() will split a string into an array of strings, each of
+    // which contains a single code point.
+    // https://stackoverflow.com/a/42596897/893113
+    return Array.from(text).reduce((accumWidth, char) => {
+      const charWidth = this.widthOfCharCode(char.codePointAt(0))
+      if (charWidth === undefined) {
+        if (guess) {
+          return accumWidth + this.emWidth
+        } else {
+          throw Error(
+            `No width available for character code ${char.codePointAt(0)}`
+          )
+        }
+      } else {
+        return accumWidth + charWidth
+      }
+    }, 0.0)
+  }
+}

node_modules/char-width-table-consumer/src/index.js

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+'use strict'
+
+const CharWidthTableConsumer = require('./consumer')
+
+const {
+  create: createConsumer,
+  load: loadConsumer,
+  loadSync: loadConsumerSync,
+} = CharWidthTableConsumer
+
+module.exports = {
+  createConsumer,
+  loadConsumer,
+  loadConsumerSync,
+  CharWidthTableConsumer,
+}