initial commit

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.js]
+indent_style = space
+indent_size = 2
+
+[{package.json,*.yml,*.cjson}]
+indent_style = space
+indent_size = 2

.eslintignore

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+dist

.eslintrc

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+{
+  "extends": [
+    "@nuxtjs/eslint-config-typescript"
+  ]
+}

.github/workflows/ci.yml

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+name: ci
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  ci:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node: [14]
+
+    steps:
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: cache node_modules
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: ${{ matrix.os }}-node-v${{ matrix.node }}-deps-${{ hashFiles(format('{0}{1}', github.workspace, '/yarn.lock')) }}
+
+      - name: Install dependencies
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: yarn
+
+      - name: Lint
+        run: yarn lint
+
+      - name: Build
+        run: yarn build
+
+      - name: Test
+        run: yarn jest
+
+      - name: Coverage
+        uses: codecov/codecov-action@v1

.gitignore

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+.vscode
+node_modules
+*.log
+.DS_Store
+coverage
+dist
+types

LICENSE

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+MIT License
+
+Copyright (c) 2021 Nuxt Contrib
+
+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.

README.md

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+# 🧵 Scule
+
+[![npm version][npm-version-src]][npm-version-href]
+[![npm downloads][npm-downloads-src]][npm-downloads-href]
+[![Github Actions][github-actions-src]][github-actions-href]
+[![Codecov][codecov-src]][codecov-href]
+[![bundle][bundle-src]][bundle-href]
+
+<!-- ![](.github/banner.svg) -->
+
+## Install
+
+Install using npm or yarn:
+
+```bash
+npm i scule
+# or
+yarn add scule
+```
+
+Import:
+
+```js
+// CommonJS
+const { pascalCase } = require('scule')
+
+// ESM
+import { pascalCase } from 'scule'
+```
+
+**Notice:** You may need to transpile package for legacy environments
+
+## Utils
+
+### `pascalCase(str)`
+
+Splits string and joins by PascalCase convention (`foo-bar` => `FooBar`)
+
+**Remarks:**
+
+- If an upper case if followed by other upper case chars (like `FooBAR`), it is preserved
+
+### `camelCase`
+
+Splits string and joins by camelCase convention (`foo-bar` => `fooBar`)
+
+### `kebabCase(str)`
+
+Splits string and joins by kebab-case convention (`fooBar` => `foo-bar`)
+
+**Remarks:**
+
+- It does **not** preserves case
+
+### `snakeCase`
+
+Splits string and joins by snake_case convention (`foo-bar` => `foo_bar`)
+
+### `upperFirst(str)`
+
+Converts first charachter to upper case
+
+### `lowerFirst(str)`
+
+Converts first charachter to lower case
+
+### `splitByCase(str, splitters?)`
+
+- Splits string by splitters (default: `['-', '_', '/']`)
+- Splits when case changes from lower to upper (only rising edges)
+- Case is preserved in returned value
+- Is an irreversible function since splitters are omitted
+
+## License
+
+[MIT](./LICENSE)
+
+<!-- Badges -->
+[npm-version-src]: https://img.shields.io/npm/v/scule?style=flat-square
+[npm-version-href]: https://npmjs.com/package/scule
+
+[npm-downloads-src]: https://img.shields.io/npm/dm/scule?style=flat-square
+[npm-downloads-href]: https://npmjs.com/package/scule
+
+[github-actions-src]: https://img.shields.io/github/workflow/status/nuxt-contrib/scule/ci/main?style=flat-square
+[github-actions-href]: https://github.com/nuxt-contrib/scule/actions?query=workflow%3Aci
+
+[codecov-src]: https://img.shields.io/codecov/c/gh/nuxt-contrib/scule/main?style=flat-square
+[codecov-href]: https://codecov.io/gh/nuxt-contrib/scule
+
+[bundle-src]: https://img.shields.io/bundlephobia/minzip/scule?style=flat-square
+[bundle-href]: https://bundlephobia.com/result?p=scule

jest.config.js

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+module.exports = {
+  preset: 'ts-jest',
+  collectCoverage: true,
+  testEnvironment: 'node'
+}

package.json

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+{
+  "name": "scule",
+  "version": "0.0.0",
+  "description": "",
+  "repository": "nuxt-contrib/scule",
+  "license": "MIT",
+  "sideEffects": false,
+  "main": "dist/index.js",
+  "module": "dist/index.mjs",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "siroc build",
+    "lint": "eslint --ext .ts .",
+    "prepublishOnly": "yarn build",
+    "release": "yarn test && standard-version && git push --follow-tags && npm publish",
+    "test": "yarn lint && jest"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "@nuxtjs/eslint-config-typescript": "latest",
+    "@types/flat": "latest",
+    "@types/jest": "latest",
+    "@types/node": "latest",
+    "eslint": "latest",
+    "jest": "latest",
+    "siroc": "latest",
+    "standard-version": "latest",
+    "ts-jest": "latest",
+    "typescript": "latest"
+  }
+}

renovate.json

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+{
+  "extends": [
+    "@nuxtjs"
+  ]
+}

src/index.ts

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+export function isUppercase (char: string = '') {
+  return char.toUpperCase() === char
+}
+
+const STR_SPLITTERS = ['-', '_', '/']
+
+export function splitByCase (str: string, splitters = STR_SPLITTERS): string[] {
+  const parts: string[] = []
+
+  let buff = ''
+
+  let previusUpper = isUppercase(str[0])
+  let previousSplitter = splitters.includes(str[0])
+
+  for (const char of str.split('')) {
+    const isSplitter = splitters.includes(char)
+    if (isSplitter) {
+      parts.push(buff)
+      buff = ''
+      previusUpper = false
+      previousSplitter = true
+    } else if (!previousSplitter && !previusUpper && isUppercase(char)) {
+      parts.push(buff)
+      buff = char
+      previusUpper = true
+      previousSplitter = false
+    } else {
+      buff += char
+      previusUpper = isUppercase(char)
+      previousSplitter = isSplitter
+    }
+  }
+
+  if (buff) {
+    parts.push(buff)
+  }
+
+  return parts
+}
+
+export function upperFirst (str: string): string {
+  if (!str) {
+    return ''
+  }
+  return str[0].toUpperCase() + str.substr(1)
+}
+
+export function lowerFirst (str: string): string {
+  if (!str) {
+    return ''
+  }
+  return str[0].toLocaleLowerCase() + str.substr(1)
+}
+
+export function pascalCase (str: string | string[] = ''): string {
+  return (Array.isArray(str) ? str : splitByCase(str))
+    .map(p => upperFirst(p))
+    .join('')
+}
+
+export function camelCase (str: string | string[] = ''): string {
+  return lowerFirst(pascalCase(str))
+}
+
+export function kebabCase (str: string | string[] = '', joiner = '-'): string {
+  return (Array.isArray(str) ? str : splitByCase(str))
+    .map((p = '') => p.toLocaleLowerCase())
+    .join(joiner)
+}
+
+export function snakeCase (str: string | string[] = '') {
+  return kebabCase(str, '_')
+}