mdvu v0.3.2

Added

• Automatic Dialect Option & Document State Reset:
  • Added Automatic option to View → Dialect menu, allowing dynamic frontmatter and comment directive detection while retaining menu fallback.
  • Switching or opening documents now automatically resets manual dialect overrides to the document's detected default, unless --dialect was explicitly passed via CLI.

Changed

• Linear Callout Scanner & Pipeline Throughput:
  • Replaced regular expressions in callout block processing with linear bounded scans and literal string matching, reducing callout postprocessing time by ~8.5x.
  • Pipeline throughput boosted to 16.5 – 52 MB/s (~52 MB/s on standard documentation, ~16.5 MB/s on rich multi-extension fixtures).
  • Optimized extension pre-checks with hardware-accelerated FastScan.count(..., atLeast:) using SIMD memchr, skipping heavy sub/superscript and math passes when fewer than 2 delimiter tokens exist.
  • Admonition line parser handles CRLF (\r\n) line breaks cleanly without premature block termination.
• Documentation & Benchmark Comparison:
  • Replaced compiler flags and N/A entries in README.md with a realistic 3-column benchmark comparing mdvu against real-world native viewers (MacDown, mdv) and Electron applications (Typora, Obsidian).

Fixed

• CriticMarkup Tooltip Attribute Escaping:
  • Escaped user comment text in CriticMarkupExtension tooltip attribute (HTML.escapeAttribute) to prevent HTML attribute breakouts.
• Obsidian 4-Backtick Fence Handling:
  • Added fence length and character tracking to prevent 4-backtick code blocks (````) from being prematurely terminated by inner 3-backtick sequences (```).
• Window Title Markup Leaks:
  • Document title extraction from <h1> elements now strips nested HTML tags and decodes entities, preventing raw markup from leaking into the macOS window title.
• Entity Unescaping with Standalone Ampersands:
  • Fixed pointer-advancing logic in HTML.unescape when standalone ampersands are present without valid entity codes.