178 lines
8.2 KiB
Markdown
178 lines
8.2 KiB
Markdown
This project is home to a [gmi-to-html reference](#gmi-to-html), a [gmi.css](#gmi-css) stylesheet and the [gmi-web(1) ](#gmi-web-1) command-line tool.
|
|
|
|
# gmi-to-html
|
|
|
|
The converted Gemini document should exist inside the `<body>`. Consider if sharing the page with other HTML to put the core document inside `<main>`. [Each Gemini line-type](https://gemini.circumlunar.space/docs/specification.html#5-3-line-orientation) may be translated using the following guide:
|
|
|
|
````
|
|
<p> ↔
|
|
<a> ↔ =>
|
|
<pre> ↔ ```
|
|
<h[1-3]> ↔ #[##]
|
|
<li> ↔ *
|
|
<blockquote> ↔ >
|
|
````
|
|
|
|
`<li>` must be wrapped in `<ul>`. Take care to render `<pre>` blocks with their original formatting, _do not_ indent the generated HTML for these tags.
|
|
|
|
`<a>` tags are categorized as inline which CSS [Normal Flow](https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Normal_Flow) presents vertically—Gemini only deals with horizontally flowing content, this can be addressed by using [`display: block;` at the CSS level.](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Flow_Layout/Block_and_Inline_Layout_in_Normal_Flow#changing_the_formatting_context_an_element_participates_in)
|
|
|
|
## optional: inline media
|
|
|
|
If a URL is consumable by `<img>`, `<audio>` or `<video>` you may insert the respective tag inline, instead of an `<a>`. It's a good idea to also include the `controls` property.
|
|
|
|
These are categorized as inline just like `<a>` and will need `display: block;` styling. Images and video should also have `max-width: 100%;` so they don't overflow the body.
|
|
|
|
## `<html>` and `<head>`
|
|
|
|
When producing a complete and valid HTML5 document the first declaration is the required `<!DOCTYPE html>`. At the root of a document is the `<html>` tag which should have a [`lang` attribute declaring the overall language of the page](https://www.w3.org/International/questions/qa-html-language-declarations) as well as `dir="rtl"` if necessary.
|
|
|
|
A `<head>` tag with at least the following must be included:
|
|
|
|
```html
|
|
<meta charset="utf-8" />
|
|
<meta name="viewport" content="width=device-width,initial-scale=1" />
|
|
<title></title>
|
|
```
|
|
|
|
These may also be nice to have:
|
|
|
|
```html
|
|
<meta name="author" content="" />
|
|
<meta name="description" content="" />
|
|
<link rel="canonical" href="gemini://" />
|
|
<meta name="color-scheme" content="dark light" />
|
|
```
|
|
|
|
# gmi.css
|
|
|
|
[gmi.css](./gmi.css) is a maximally miniminal stylesheet that overrides the default CSS [Normal Flow](https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Normal_Flow) to render content horizontally in a Gemini way. [gmi-web.css](./gmi-web.css) extends upon that slightly with font and color options. The default values are optimized for readability and mobile-friendliness and may be customized by adding a style property to `<html>`.
|
|
|
|
```html
|
|
<head>
|
|
<!-- assuming you wanna host a copy and link to it... -->
|
|
<link rel="stylesheet" type="text/css" href="gmi-web.css" />
|
|
<meta name="color-scheme" content="dark light" />
|
|
<!-- ... -->
|
|
</head>
|
|
<html style="--foreground:#555555; --background:#9EEBCF;">
|
|
<!-- ... -->
|
|
</html>
|
|
```
|
|
|
|
The `--foreground` and `--background` variables will be inverted when
|
|
[prefers-color-scheme](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme) is "dark".
|
|
|
|
# gmi-web(1)
|
|
|
|
A command-line utility that pulls all of the above together into a unix-like API for creating HTML from Gemini documents.
|
|
|
|
```sh
|
|
npm install --global gmi-web-cli && gmi-web --help
|
|
```
|
|
|
|
```
|
|
gmi-web [files..]
|
|
|
|
Convert text/gemini to text/html.
|
|
|
|
Core:
|
|
--body [boolean]
|
|
--html, --language, --lang [string]
|
|
--css
|
|
|
|
HTML:
|
|
--author [string]
|
|
--descriptions
|
|
|
|
Media:
|
|
--image [array]
|
|
--audio [array]
|
|
--video [array]
|
|
|
|
CSS:
|
|
--foreground [default: "black"]
|
|
--background [default: "white"]
|
|
--body-width [default: "48rem"]
|
|
--hyphens [default: "manual"]
|
|
--serif [default: "georgia, times, serif"]
|
|
--sans-serif [default: "avenir, helvetica, arial, sans-serif"]
|
|
--mono [default: "consolas, monaco, monospace"]
|
|
--p-family [default: "var(--serif)"]
|
|
--p-size [default: "1.25rem"]
|
|
--p-height [default: "1.5"]
|
|
--p-indent [default: "0rem"]
|
|
--a-family [default: "var(--serif)"]
|
|
--a-size [default: "var(--p-size)"]
|
|
--a-height [default: "1.5"]
|
|
--a-decoration [default: "underline"]
|
|
--a-style [default: "normal"]
|
|
--pre-family [default: "var(--mono)"]
|
|
--pre-size [default: "1rem"]
|
|
--pre-height [default: "1"]
|
|
--h1-family [default: "var(--sans-serif)"]
|
|
--h1-size [default: "3rem"]
|
|
--h1-height [default: "1.25"]
|
|
--h2-family [default: "var(--sans-serif)"]
|
|
--h2-size [default: "2.25rem"]
|
|
--h2-height [default: "1.25"]
|
|
--h3-family [default: "var(--sans-serif)"]
|
|
--h3-size [default: "1.5rem"]
|
|
--h3-height [default: "1.25"]
|
|
--ul-family [default: "var(--serif)"]
|
|
--ul-size [default: "var(--p-size)"]
|
|
--ul-height [default: "1.25"]
|
|
--quote-family [default: "var(--serif)"]
|
|
--quote-size [default: "var(--p-size)"]
|
|
--quote-height [default: "1.25"]
|
|
--quote-style [default: "italic"]
|
|
|
|
Options:
|
|
--version Show version number [boolean]
|
|
--config Path to JSON config file
|
|
--help Show help [boolean]
|
|
|
|
Examples:
|
|
gmi-web --body < ~/my-capsule/index.gmi
|
|
gmi-web --html en $(find ~/my-capsule -name '*.gmi')
|
|
gmi-web --foreground '#000000' --background '#EEEEEE' --html en < doc.gmi
|
|
gmi-web --image jpg --audio mp3 --image png --body < doc.gmi
|
|
|
|
See the gmi-web(1) man page for more information.
|
|
```
|
|
|
|
## config
|
|
|
|
A JSON file can be passed to `--config` for conveniently applying any option without using the command-line flag. For example a `web.json` file with the following contents...
|
|
|
|
```json
|
|
{
|
|
"html": "en",
|
|
"descriptions": 200,
|
|
"foreground": "#137752",
|
|
"background": "#F4F4F4"
|
|
}
|
|
```
|
|
|
|
...can be used like so:
|
|
|
|
```sh
|
|
gmi-web --config web.json $(find ~/gmi/dst -name '*.gmi')
|
|
```
|
|
|
|
## custom css
|
|
|
|
It is possible to use your own set of completely custom CSS rules by pointing to a .css file containing them.
|
|
|
|
```sh
|
|
gmi-web --body --css custom.css < doc.gmi
|
|
```
|
|
|
|
gmi-web auto-detects the need for the `<meta>` color-schemes and allows for using `--inline` to insert the declarations as `style` properties on their respective blocks.
|
|
|
|
[gmi.css](./gmi.css) is a good starting point!
|
|
|
|
# license
|
|
|
|
gmi-web is free and unencumbered public domain software. For more information, see http://unlicense.org/ or the accompanying UNLICENSE file.
|