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99 lines
2.5 KiB
Markdown
99 lines
2.5 KiB
Markdown
---
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title: "SpaceVim lang#elm layer"
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description: "This layer is for Elm development, provides autocompletion, syntax checking and code formatting for Elm files."
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image: https://img.spacevim.org/44625046-7b2f7700-a931-11e8-807e-dba3f73c9e90.png
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---
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# [Available Layers](../../) >> lang#elm
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<!-- vim-markdown-toc GFM -->
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- [Description](#description)
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- [Features](#features)
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- [Install](#install)
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- [Requirements](#requirements)
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- [Layer](#layer)
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- [Key bindings](#key-bindings)
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- [Language specific key bindings](#language-specific-key-bindings)
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- [Inferior REPL process](#inferior-repl-process)
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<!-- vim-markdown-toc -->
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## Description
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This layer is for Elm development.
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## Features
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- Code completion
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- Syntax highlighting
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- Indentation
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- Running unite test
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- Syntax checking
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- Find symbol doc
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SpaceVim also provides REPL support for Elm.
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## Install
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### Requirements
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First, make sure you have the [Elm Platform](https://elm-lang.org/install) installed. The simplest method to get started is to use the official [npm](https://www.npmjs.com/package/elm) package.
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```sh
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npm install -g elm
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```
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In order to run unit tests from within vim, install [elm-test](https://github.com/rtfeldman/node-elm-test)
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```sh
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npm install -g elm-test
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```
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For code completion and doc lookups, install [elm-oracle](https://github.com/elmcast/elm-oracle).
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```sh
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npm install -g elm-oracle
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```
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To automatically format your code, install [elm-format](https://github.com/avh4/elm-format).
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```sh
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npm install -g elm-format
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```
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### Layer
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To use this configuration layer, update your custom configuration file with:
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```toml
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[[layers]]
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name = "lang#elm"
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```
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## Key bindings
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### Language specific key bindings
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| key bindings | Descriptions |
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| --------------- | -------------------------- |
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| `SPC l d` / `K` | Show doc of cursor symbol |
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| `SPC l m` | Compile the current buffer |
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| `SPC l t` | Runs the tests |
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| `SPC l e` | Show error detail |
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| `SPC l w` | Browse symbol doc |
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### Inferior REPL process
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Start a `elm repl` inferior REPL process with `SPC l s i`.
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Send code to inferior process commands:
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| key bindings | Descriptions |
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| ----------- | ------------------------------------------------ |
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| `SPC l s b` | send buffer and keep code buffer focused |
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| `SPC l s l` | send line and keep code buffer focused |
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| `SPC l s s` | send selection text and keep code buffer focused |
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