mdvu v0.3.0

Added

• Native LaTeX Formula Support (KaTeX + WebKit MathML):
  • Full offline rendering for inline ($...$) and display ($$...$$ and math, latex, katex blocks) mathematical formulas.
  • Translated client-side via embedded LZMA-compressed KaTeX engine (~64 KB) into native WebKit MathML Core markup.
  • 100% offline with zero font download delays, dark/light theme integration, and crisp Retina scaling.
• Hardware-Vectorized FastScan:
  • Replaced Swift String.contains("...") pre-checks with POSIX memchr and memmem byte-matching routines.
  • Bypasses grapheme cluster normalization on multi-megabyte documents, delivering a 30x–800x speedup in extension pre-checks.
• Linear $O(N)$ Streaming Math & Code Fence Scanner:
  • Single-pass cursor scanning that natively skips inline code spans (`...`) and escaped backslashes (\$) without token replacement arrays.
  • Streaming CodeFenceScanner replaces memory-heavy string splitting for fenced code blocks.
• Startup Pipelining (EagerDocumentLoader):
  • Detached background reading and parsing launched immediately upon CLI invocation, running concurrently with AppKit runloop and window initialization.
  • Continuous WebKit prewarming keeps subsequent document windows instant.
• Zero-Leak Memory & Lifecycle Hygiene:
  • WeakScriptMessageHandler trampoline breaks the hidden WKUserContentController retain cycle.
  • Decoupled background rendering in DocumentWindowController captures only immutable MarkdownPipeline state, eliminating controller retain across background parse tasks.
  • Deterministic tearDown() and FileWatcher.invalidate() cancel GCD dispatch sources, debounce timers, and close file descriptors immediately upon window close.
  • DiagramCache memory cache bounded strictly to 16 MB.
• Corporate & Non-Admin Installation:
  • make install and Homebrew cask automatically detect write permissions on /Applications, installing without root or falling back seamlessly to ~/Applications.
• GitHub Actions CI Pipeline:
  • Automated continuous integration on native Apple Silicon macos-14 (M1) runners with Xcode 16.
  • Validates full test suites, release builds, binary stripping and sizes, streaming throughput benchmarks, universal lipo binaries, and artifact generation.
• Full Fixture Coverage & Torture Testing:
  • Audited and activated 100% of test fixtures in Tests/Fixtures/: test-light.md (109 KB), test-medium.md (174 KB), test-complete.md (228 KB), and test-heavy.md (1.65 MB).
  • Added torture test verifying test-heavy.md (13,916 lines, 324 Mermaid diagrams, 1,100 headings, multi-script Unicode) parses end-to-end in 0.35 seconds.
  • Expanded test-complete.md with sections 19–23 covering 120 content-cases: formulas inside tables, blockquotes, callouts, CriticMarkup, false-positive currency protection, and isolated security fixtures (Tests/Fixtures/runtime/).
  • Programmatic verification suite (testAllMathCasesInFixture) asserting all 42 LaTeX formula cases.
  • Extended math code fence scanner to support CommonMark tildes (~~~math) and multi-backtick (math) fences with variable indentation.
  • Unit and integration suite expanded to 43 tests executing in < 0.8 seconds with > 92% line coverage on core rendering modules.

Changed

• Compiler Optimization:
  • Updated release build configuration to -O -cross-module-optimization -disable-reflection-metadata -disable-reflection-names -dead_strip -dead_strip_dylibs.
  • Stripped single-arch binary is 638 KB; entire .app bundle is 3.3 MB (including KaTeX, Mermaid, PlantUML).
• Throughput & Latency Gains:
  • Parsing throughput boosted from 3.0 MB/s to 14.3+ MB/s (~4.8x faster on large documents; 1 MB in 70 ms, 25 MB in 1.77 s, 44 KB real-world documents in 4.97 ms).