Crate stylex_css_parser 

StyleX CSS Parser

A high-performance CSS value parser for StyleX, written in Rust.

This crate provides comprehensive CSS value parsing capabilities with excellent performance and type safety.

Features

• Token Parser Combinators: Monadic parser combinators for building complex parsers
• CSS Type Parsers: Support for all CSS value types (colors, lengths, angles, calc expressions, etc.)
• Property Parsers: Specialized parsers for complex CSS properties (transform, box-shadow, border-radius)
• Media Query Support: Complete media query parsing and transformation
• Type Safety: Full Rust type safety with comprehensive error handling
• Performance: High-performance parsing with minimal allocations

Usage Examples

use stylex_css_parser::{tokenParser, properties, last_media_query_wins_transform};
use stylex_css_parser::css_types::{Color, Length, Calc};
use swc_core::ecma::ast::{KeyValueProp, PropName, Expr, Lit};

// Parse CSS values
let color = Color::parse(); // CSS color parser
let length = Length::parser(); // CSS length parser
let calc = Calc::parse(); // CSS calc() expression parser

// Property parsers
let transform = properties::Transform::parser();
let box_shadow = properties::BoxShadow::parser();
let border_radius = properties::BorderRadiusShorthand::parser();

// Media query transformation
let queries = &[KeyValueProp{
  key: PropName::Ident("key".into()),
  value: Box::new(Expr::Lit(Lit::Str("value".into()))),
}];
let transformed = last_media_query_wins_transform(queries);

Module Organization

• tokenParser - Core parser combinator library
• properties - Property-specific parsers
• css_types - Individual CSS type parsers (color, length, angle, etc.)
• at_queries - Media query and at-rule parsing
• base_types - Base utility types (SubString, etc.)
• token_types - Tokenization utilities

Re-exports

pub use at_queries::last_media_query_wins_transform;

pub use token_parser as tokenParser;

pub use css_value::CssValue;

pub use flex_parser::FlexCombinators;

pub use flex_parser::FlexParser;

Modules

at_queries

At-rule parsing functionality.

base_types

Base types and utilities for CSS parsing.

css_types

CSS type parsers.

css_value

Universal CSS Value System for Dynamic Parsing

flex_parser

Flexible Parser System for Advanced CSS Parsing

properties

CSS property parsers.

token_parser

Token parser combinators for CSS parsing.

token_types

Token types and tokenization utilities for CSS parsing.

Enums

CssParseError

Main error type for CSS parsing operations

Type Aliases

CssResult

Result type for CSS parsing operations