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sources_non_forked/lightline-ale/README.md

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+# lightline-ale
+
+This plugin provides [ALE](https://github.com/w0rp/ale) indicator for the [lightline](https://github.com/itchyny/lightline.vim) vim plugin.
+
+![screenshot](./screenshot.png)
+
+## Table Of Contents
+
+* [Installation](#installation)
+* [Integration](#integration)
+* [Configuration](#configuration)
+* [License](#license)
+
+## Installation
+
+Install using a plugin manager of your choice, for example:
+
+```viml
+call dein#add('w0rp/ale')                 " Dependency: linter
+call dein#add('itchyny/lightline.vim')    " Dependency: status line
+call dein#add('maximbaz/lightline-ale')
+```
+
+## Integration
+
+1. Register the components:
+
+```viml
+let g:lightline = {}
+
+let g:lightline.component_expand = {
+      \  'linter_checking': 'lightline#ale#checking',
+      \  'linter_warnings': 'lightline#ale#warnings',
+      \  'linter_errors': 'lightline#ale#errors',
+      \  'linter_ok': 'lightline#ale#ok',
+      \ }
+```
+
+2. Set color to the components:
+
+```viml
+let g:lightline.component_type = {
+      \     'linter_checking': 'left',
+      \     'linter_warnings': 'warning',
+      \     'linter_errors': 'error',
+      \     'linter_ok': 'left',
+      \ }
+```
+
+3. Add the components to the lightline, for example to the right side:
+
+```viml
+let g:lightline.active = { 'right': [[ 'linter_checking', 'linter_errors', 'linter_warnings', 'linter_ok' ]] }
+```
+
+## Configuration
+
+##### `g:lightline#ale#indicator_checking`
+
+The indicator to use when ALE is in progress. Default is `Linting...`.
+
+##### `g:lightline#ale#indicator_warnings`
+
+The indicator to use when there are warnings. Default is `W:`.
+
+##### `g:lightline#ale#indicator_errors`
+
+The indicator to use when there are errors. Default is `E:`.
+
+##### `g:lightline#ale#indicator_ok`
+
+The indicator to use when there are no warnings or errors. Default is `OK`.
+
+### Using icons as indicators
+
+If you would like to replace the default indicators with symbols like on the screenshot, then you'll need to ensure you have some "iconic fonts" installed, such as [Font Awesome](https://fontawesome.com). A common alternative is to replace your primary font with one of the [Patched Nerd Fonts](https://github.com/ryanoasis/nerd-fonts), which saves you from having to install multiple fonts.
+
+The following icons from the Font Awesome font are used in the screenshot:
+
+* Checking: [f110](https://fontawesome.com/icons/spinner)
+* Warnings: [f071](https://fontawesome.com/icons/exclamation-triangle)
+* Errors: [f05e](https://fontawesome.com/icons/ban)
+* OK: [f00c](https://fontawesome.com/icons/check) (although I prefer to disable this component)
+
+To specify icons in the configuration, use their unicode codes as `"\uXXXX"` (make sure to wrap them in double quotes). Alternatively copy the icons from a font website, or type <kbd>\<C-v\>u\<4-digit-unicode\></kbd> or <kbd>\<C-v\>U\<8-digit-unicode\></kbd> to insert the literal characters.
+
+See the code points here:
+
+* Font Awesome: https://fontawesome.com/icons
+* Nerd Fonts: https://github.com/ryanoasis/nerd-fonts#glyph-sets
+
+Here's the configuration snippet used in the screenshot:
+
+```viml
+let g:lightline#ale#indicator_checking = "\uf110"
+let g:lightline#ale#indicator_warnings = "\uf071"
+let g:lightline#ale#indicator_errors = "\uf05e"
+let g:lightline#ale#indicator_ok = "\uf00c"
+```
+
+## License
+
+Released under the [MIT License](LICENSE)