The eno notation language
A modern plaintext data format, designed from the ground up for file-based content - simple, powerful and elegant:
author: 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
Language Overview:
- As fast to write and edit as it probably gets
- Intuitive and simple - easy to use for non-programmers too
- No indentation, all empty lines and whitespace optional
- No type syntax rules and restrictions on the language level
- Documents map to ubiquitous structural types in all programming languages
- Powerful advanced features - copy, merge, deep merge elements
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
Visit eno-lang.org/language for more information.
The eno libraries
Blazing fast, zero-dependency, fully documented eno parsers for JavaScript, PHP Python, Ruby (and soon also Rust) - featuring a powerful, expressive API:
# Ruby example (JavaScript / PHP / Python APIs are identical)
require 'enorb'
document = Eno.parse(
File.read('example.eno'),
locale: :es, # Fully localized error messages
reporter: Eno::Reporters::HTML # Multi-format error messages
)
document.string('author', required: true) # accessing = validating
#=> 'Jane Doe'
document.section('cities').lat_lng('Málaga') # high-level types
#=> { lat: 36.721447, lng: -4.421291 }
document.lookup(9, 12) # "What's at line 9, column 12?"
#=> {
# element: #<Eno::Field name="hover" value="#b6b6b6">,
# zone: :value
# }
Libraries Overview:
- Data access = Data validation = Guaranteed data structure and type-safety
- High-level types for emails, urls, colors, ... included out of the box
- Custom type loaders can be easily defined with simple closures/functions
- Fully localized, handwritten, human language error messages everywhere
- Rich error metadata - message, snippet, cursor position, selection range
- Both ordered and associative access to all data in the document
Usecases:
- Static site generation, scalable up to massive amounts of content
- Generating documentation, invoices, CVs, reports, you name it
- Highly reliable app configuration data with minimal development effort
- Content management tooling for apps, websites, editors, IDEs, ...
Visit eno-lang.org/libraries for more information.
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