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117 lines
4.4 KiB
Markdown
117 lines
4.4 KiB
Markdown
# Heynote Documentation
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Heynote is a dedicated scratchpad for developers. It functions as a large persistent text buffer where you can write down anything you like. Works great for that Slack message you don't want to accidentally send, a JSON response from an API you're working with, notes from a meeting, your daily to-do list, etc.
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The Heynote buffer is divided into blocks, and each block can have its own Language set (e.g. JavaScript, JSON, Markdown, etc.). This gives you syntax highlighting and lets you auto-format that JSON response.
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Available for Mac, Windows, and Linux.
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## Features
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- Persistent text buffer
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- Block-based
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- Syntax highlighting:
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C++, C#, Clojure, CSS, Erlang, Dart, Go, Groovy, HTML, Java, JavaScript, JSX, Kotlin, TypeScript, TOML, TSX, JSON, Lezer, Markdown, PHP, Python, Ruby, Rust, Shell, SQL, Swift, Vue, XML, YAML
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- Language auto-detection
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- Auto-formatting
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- Math/Calculator mode
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- Currency conversion
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- Multi-cursor editing
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- Dark & Light themes
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- Option to set a global hotkey to show/hide the app
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- Default or Emacs-like key bindings
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## Default Key Bindings
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<!-- keyboard_shortcuts -->
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**On Mac**
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```
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⌘ + Enter Add new block below the current block
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⌥ + Enter Add new block before the current block
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⌘ + Shift + Enter Add new block at the end of the buffer
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⌥ + Shift + Enter Add new block at the start of the buffer
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⌘ + ⌥ + Enter Split the current block at cursor position
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⌘ + L Change block language
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⌘ + Down Goto next block
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⌘ + Up Goto previous block
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⌘ + A Select all text in a note block. Press again to select the whole buffer
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⌘ + ⌥ + Up/Down Add additional cursor above/below
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⌥ + Shift + F Format block content (works for JSON, JavaScript, HTML, CSS and Markdown)
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```
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**On Windows and Linux**
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```
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Ctrl + Enter Add new block below the current block
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Alt + Enter Add new block before the current block
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Ctrl + Shift + Enter Add new block at the end of the buffer
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Alt + Shift + Enter Add new block at the start of the buffer
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Ctrl + Alt + Enter Split the current block at cursor position
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Ctrl + L Change block language
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Ctrl + Down Goto next block
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Ctrl + Up Goto previous block
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Ctrl + A Select all text in a note block. Press again to select the whole buffer
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Ctrl + Alt + Up/Down Add additional cursor above/below
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Alt + Shift + F Format block content (works for JSON, JavaScript, HTML, CSS and Markdown)
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Alt Show menu
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```
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## Download/Installation
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Download the appropriate (Mac, Windows or Linux) version from [heynote.com](https://heynote.com). The Windows build is not signed, so you might see some scary warning (I can not justify paying a yearly fee for a certificate just to get rid of that).
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### Notes on Linux installation
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It's been reported [(#48)](https://github.com/heyman/heynote/issues/48) that ChromeOS's Debian VM need the following packages installed to run the Heynote AppImage:
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```
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libfuse2
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libnss3
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libnspr4
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```
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## Math Blocks
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Heynote's Math blocks are powered by [Math.js expressions](https://mathjs.org/docs/expressions). Checkout their [documentation](https://mathjs.org/docs/) to see what [syntax](https://mathjs.org/docs/expressions/syntax.html), [functions](https://mathjs.org/docs/reference/functions.html), and [constants](https://mathjs.org/docs/reference/constants.html) are available.
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### Accessing the previous result
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The variable `prev` can be used to access the previous result. For example:
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```
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128
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prev * 2 # 256
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```
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### Changing how the results of Math blocks are formatted
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You can define a custom `format` function within the Math block like this:
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```
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_format = format # store reference to the built in format
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format(x) = _format(x, {notation:"exponential"})
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```
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You can also do something like this to show the number with your default locale or provide a [custom one](https://www.w3.org/International/articles/language-tags/):
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```
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format(x) = x.toLocaleString();
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format(x) = x.toLocaleString('en-GB');
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```
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See the [Math.js format()](https://mathjs.org/docs/reference/functions/format.html) function for more info on what's supported.
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## The buffer file
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The default paths for the buffer data for the respective operating systems are:
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- Mac: `~/Library/Application Support/Heynote/buffer.txt`
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- Windows: `%APPDATA%\Heynote\buffer.txt`
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- Linux: `~/.config/Heynote/buffer.txt`
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