$ show asciimath/asciimathml
ASCIIMathML is a JavaScript/TypeScript library that converts simple calculator-style (AsciiMath) and LaTeX math notation to Presentation MathML. It operates both in-browser via automatic DOM transformation and server-side via a Node.js module. The codebase includes three implementations: the original monolithic ASCIIMathML.js, a TypeScript refactor with a modular parser (AsciiMathParser.ts) that uses an adapter pattern for DOM independence, and a dedicated LaTeX-to-MathML converter (LaTeXMathML.js). The main API functions (asciimath.parseMath, asciimath.AMprocessNode, asciimath.translate) enable controlled or automatic translation of delimited math expressions into MathML nodes. The TypeScript version introduces clean separation of parsing logic from the DOM, making the parser theoretically reusable across platforms.
The LLM identified 2 files worth highlighting for reuse:
Core parser class for converting AsciiMath to a MathML node tree. It uses a recursive-descent grammar, binary search over sorted symbol names, and robust tokenization including number and decimal parsing. The parser is completely separated from any DOM implementation through the INodeAdapter interface, making it portable to browser, server, or custom backends. It includes detailed handling of subscripts, superscripts, fractions, roots, matrices, and font changes via Unicode code maps.
Defines the INodeAdapter and IParseOptions interfaces that abstract away all DOM operations. Any DOM implementation can be adapted quickly -- the repository ships browser (DOMNodeAdapter) and server (AMNodeAdapter) implementations. This pattern allows the core parser to remain testable and lightweight while supporting multiple target environments.