Markdown

Markdown document engine: parse, query, lint, build, render, and safely edit Markdown with minimal diffs.

composer requirealto/markdown

RST

reStructuredText document engine: parse, query, lint, build, render, translate, and safely edit RST with minimal diffs.

composer requirealto/rst

Front Matter

Fast front matter extraction and strict YAML-subset decoding for PHP.

composer requirealto/frontmatter

Code Highlight

Semantic syntax highlighting in PHP, with embedded languages and Highlight.js, Prism, and TextMate theme adapters.

composer requirealto/code-highlight

Twig Code Highlight

Twig extension for Alto Code Highlight.

composer requirealto/twig-code-highlight

Code Slicer

Extract source-code slices by line, text, or language structure while preserving original line numbers.

composer requirealto/code-slicer

Code Snippet

Represent immutable code snippets with source lines, selections, and presentation-neutral annotations.

composer requirealto/code-snippet

Code Kit

Compose source slicing and semantic highlighting into immutable annotated code snippets.

composer requirealto/code-kit

Code Diff

Generate, render, and apply code diffs.

composer requirealto/code-diff

Language

Programming language identification: extensions, aliases, markers.

composer requirealto/language

JSON Patch

RFC 6902 JSON Patch: smart diffs, patching, audit and versioning.

composer requirealto/json-patch

Image

Lazy image resizing, cropping and encoding with predictable geometry and efficient multi-output rendering.

composer requirealto/image

Favicon

Generate a modern favicon set from a single SVG or PNG file.

composer requirealto/favicon

Importmap

Manage, render, and resolve Import Maps.

composer requirealto/importmap

Font

Read, inspect, convert, and subset OpenType, TrueType, WOFF, and WOFF2 fonts in PHP.

composer requirealto/font

Bezier

Precision toolkit for Bezier curves: evaluate, split, and measure.

composer requirealto/bezier

Scale

Compute and manipulate modular scales: typography, rhythm, grids.

composer requirealto/scale

Tree

Build, parse, traverse, and print tree structures.

composer requirealto/tree