gemtext - A simple library for parsing the Gemtext markup language

Introduction

gemtext is a small and simple library that provides code for parsing the hypertext markup language of the Gemini project.

Installation

gemtext is available from pypi and can be installed with your package installer of choice.

With pip:

pip install gemtext

With uv:

uv add gemtext

Quick start

The library provides a single main parsing class called Gemtext. It is initialised with a body of gemtext and the content property provides a list of lines, typed with their parsed type, each having its own relevant properties.

A very minimal parser might look like this:

import fileinput
from gemtext import Gemtext

def parse_input() -> None:
    for gem_line in Gemtext("".join(fileinput.input())).content:
        print(f"{gem_line!r}")

The library contains a simple test command line tool, which can be accessed either via the Python -m switch, or depending on your environment, via the gemtext command. For example, given this content of a file called example.gmi:

# This is a heading

## This is a sub-heading

### This is a sub-sub-heading

=> gemini://davep.gemcities.com/ Dave's test capsule

> This is a deep and meaningful quote

```
Here is some pre-formatted text.

Here's some more of that text.
```

* One
* Two
* Three

The gemtext command (or python -m gemtext) would produce:

$ gemtext example.gmi
Heading(content='This is a heading', level=1)
Paragraph(content='')
Heading(content='This is a sub-heading', level=2)
Paragraph(content='')
Heading(content='This is a sub-sub-heading', level=3)
Paragraph(content='')
Link(content="Dave's test capsule", uri='gemini://davep.gemcities.com/')
Paragraph(content='')
Quote(content='This is a deep and meaningful quote')
Paragraph(content='')
PreFormatted(content="Here is some pre-formatted text.\n\nHere's some more of that text.")
Paragraph(content='')
ListItem(content='One')
ListItem(content='Two')
ListItem(content='Three')

See the main documentation for the full API.