Tx Styling

tx styling

When to use

• Editing components that use the tx prop or tx template literals.
• Integrating @landfolk/tx into a React/Next.js app.
• Debugging grouping, Tailwind extraction, or linting around tx.

Core rules

• Prefer tx over className for Tailwind classes.
• Use arrays for conditional styles; avoid string concatenation.
• Use grouping syntax like hover:(bg-blue-500 text-white).
• Do not forward tx props; only forward className.
• For styleable components, merge className into tx.

Tooling overview

• SWC plugin rewrites tx to className at compile time.
• Tailwind transformer expands grouped classes for JIT extraction.
• ESLint rule sorts and validates classes.

Grouping syntax

Example:

<div tx="hover:(bg-blue-500 text-white)" />

Compiles to className="hover:bg-blue-500 hover:text-white". Groups can be nested.

SWC transform

• tx="..." becomes className="...".
• Arrays like tx={[cond && tx...]} become joined className arrays.
• Tagged tx templates expand at compile time.
• In dev, class strings can be wrapped with a conflict checker if registered.

Register the dev-only conflict checker once:

import '@landfolk/tx/checkConflicts'

Tailwind transformer

The transformer scans tx attributes and template literals to expand grouped syntax into full class lists so Tailwind JIT sees every class.

ESLint rule

@landfolk/tx/optimize-tailwind-classes:

• Expands grouped syntax and re-compacts in a stable order.
• Sorts classes using Tailwind's internal order.
• Normalizes whitespace in arbitrary values.
• Can validate class names when given a Tailwind config path.

Getting started

See getting-started.md for install, config, and Next.js compatibility.

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