The eno notation language and libraries

eno

A modern plaintext data format for file-based content. More

enoauthor: Jane Doe
email: jane@eno-lang.org

-- my_content
Multi-line embedded content (e.g. markdown) here ...
-- my_content

states:
active = #fff
hover = #b6b6b6

# cities
Den Haag: 52.069961, 4.302315
Málaga: 36.721447, -4.421291
서울특별시: 37.566984, 126.977041

# cities expanded < cities
Springfield: 38.790312, -77.186418

Overview:

Aesthetic, intuitive and simple
Inclusively designed for you and your team
Predefined and custom type support for keys, values and comments
Elements and hierarchies can be copied and merged for complex usecases

Usecases:

Authoring blogs, up to entire websites, from the macro to the micro level
Generating documentation, invoices, CVs, reports, you name it
Large scale textfile-based databases and archives
Configuration files, from the simplest to the most complex

More about eno

enolib

The cross-language eno standard library. More

javascriptimport enolib from 'enolib';

const document = enolib.parse(`
  author: Jane Doe
  title:
`);

document.field('author').requiredStringValue();
  // returns 'Jane Doe'
  
document.field('title').requiredStringValue();
  // throws "The field 'title' must contain a value.
  //
  //   Line | Content
  //      1 | author: Jane Doe
  // >    2 | title:
  //

Overview:

Dynamically extensible query API for custom and third party type support
Cursor lookup API (by index or line/column) for easy authoring of rich IDE plugins
Querying equals validating - guaranteed data structure and type-safety
Fully localized, handwritten, team-friendly error messages
Rich error metadata: message, document snippet, cursor position, selection range

Usecases:

Static site generation, scalable up to massive amounts of content
Generating documentation, code, reports, invoices, CVs, you name it
Highly reliable application configuration data with minimal development effort
Content management tooling for apps, websites, editors, IDEs, ...

More about enolib

enotype

Functional type implementations for use with (or without) enolib. More

javascriptimport { latLng } from 'enotype';

latLng('36.721447, -4.421291');
  // returns { lat: 36.721447, lng: -4.421291 } 

enolib.register({ latLng });

document.section('cities').field('Málaga').requiredLatLngValue();
  // returns { lat: 36.721447, lng: -4.421291 }

enotype is a collection of functions that convert unsafe string input to safe, native types. It is the standard type library for enolib but can be utilized in a multitude of other contexts as well.

More about enotype

and more

tree-sitter parser, PHP, Tcl & Java libraries, legacy resources More

tree-sitter-eno - Tree-sitter parser for eno (usable with C, C++, Rust, WebAssembly, JavaScript, Python, Ruby, Haskell)
enophp - Official PHP library (compliant with eno first, see below)
enotcl - Tcl parser
Enohar - (Incomplete) Java library for parsing and emitting Eno documents
eno first - Legacy ecosystem and documentation for eno's first specification