HTML/CSS/JS Formatter

This formatter handles HTML, CSS, and JavaScript input to produce consistent, production-ready code. It uses language-specific parsers to retain semantics while reflowing whitespace, comments, and line breaks for readability or compactness. Users can choose between three modes: beautify for readability, minify for size reduction, or normalization to align with a project’s style guide across files and releases.\n\nCore Logic & Features: The tool parses into language-specific representations, applies style rules and user-selected profiles, then emits the final text. Required features include HTML tag and attribute wrapping, CSS selector and property formatting, and JavaScript spacing and brace conventions. Optional features add minification, line-length controls, and per-language presets that a team can reuse to ensure consistency. It is deterministic, preserves syntax, and outputs both human-readable and machine-friendly results.\n\nInputs & Outputs: Inputs include code text, language (HTML, CSS, JS), mode (Beautify, Minify, Normalize), and options such as indentation (2, 4 spaces, or tabs), maximum line length, and attribute wrapping. Outputs include formatted_code and, when requested, minified_code; outputs follow language syntax and include comments only if configured. Validation guards against empty inputs, unsupported languages, and invalid option values, returning defaults when necessary.\n\nAlgorithms & Calculations: Parsing creates language-specific representations (AST-like structures), rules are applied per profile, and the formatter emits text with deterministic whitespace, semicolons, braces, and line breaks. Minification removes redundant whitespace and optional comments while preserving semantic content. Edge cases like embedded templates, inline scripts, and multi-line strings are handled by language-aware parsers.\n\nError & Edge Cases: Empty input or unsupported language triggers validation errors; extremely large inputs are processed in chunks to avoid timeouts; conflicting options are resolved by defaulting to a safe, readable preset.\n\nIndustry/Region & Localization: Indentation and wrapping respect developer locale preferences (spaces vs tabs) but do not apply locale-specific content changes. No currency or region-specific formats are involved; behavior is consistent across regions.\n\nAssumptions & Exclusions: Assumes text input is source code; excludes IDE-level autocomplete or persistence features unless configured; does not apply branding or telemetry in outputs.