Add basic search to MediaWiki static site generator#4
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This commit implements a MediaWiki-style search feature for the static site generator: Backend (Rust): - Added SearchEntry struct to represent indexed pages - Implemented extract_search_data() to extract text content and headings from wikitext AST - Modified generate_wiki() to build and write search-index.json during site generation - Added serde dependency for JSON serialization Frontend (JavaScript): - Created WikiSearch class with intelligent ranking algorithm - Implemented prefix and substring matching for queries - Added result highlighting with context snippets - Lazy-loading of search index on first interaction - Debounced search input for performance UI: - Added search bar to navigation with dropdown results - Styled with Tailwind CSS for consistency - Shows highlighted matches in titles and content snippets - Displays relevant headings for each result Features: - Multi-word search support - Relevance scoring (title > headings > content) - Result snippets showing query context - Yellow highlighting of matching terms - Up to 20 results per query
- Remove redundant if/else with identical branches in extract_search_data - Apply rustfmt formatting throughout codebase
Performance improvements:
- Changed from linear full-text search to inverted index lookup
- Search index now maps words to page indices instead of storing full content
- Title words weighted 3x higher for better ranking
- Multi-word queries require all words to be present
Benefits:
- O(k) lookup time where k = number of query words (vs O(n) scanning all pages)
- Smaller memory footprint during search
- Faster query responses
- Better relevance ranking
Index structure:
- pages: array of {title, url, headings}
- words: map of word -> [page indices with occurrence counts]
Stats:
- 1,208 pages indexed
- 5,585 unique words
- 442KB index file
Performance optimization: - Generate individual .txt files for each page (alongside .html) - Text files contain extracted searchable content (~376KB total) - JavaScript loads text on-demand for top 5 results only - Snippets show highlighted context around query matches - Text files cached in-memory after first load Benefits: - Initial search remains fast (426KB index) - Average text file only 0.3KB (~300 bytes) - Only ~1.5KB additional data loaded per search (5 × 0.3KB) - Better UX with context snippets for top results - Headings still shown for results 6-20 File structure: /wiki/Lua/Client/Window.html (36KB HTML) /wiki/Lua/Client/Window.txt (465B text content) /wiki/Lua/Client/Window.json (debug AST) Stats: - 1,208 .txt files generated - Search index: 426KB (unchanged from pure metadata) - Text files: 376KB total (loaded on-demand)
Index structure optimizations:
- Pages now stored as simple title array (not objects)
- URLs derived client-side from titles (title.replace(' ', '_'))
- Removed headings from index (loaded from .txt if needed)
- Use (page_id, weight) tuples instead of duplicate entries
Weighting system:
- Title words: weight 5 (highest priority)
- Heading words: weight 3 (medium priority)
- Content words: weight 1 (base priority)
- Uses max() when word appears in multiple contexts
Results:
- Index size: 426KB → 298KB (30% reduction, 128KB saved)
- 1,208 pages indexed
- 5,585 unique words
- Smarter relevance ranking with explicit weights
Example index format:
{
"pages": ["Lua/Client/Window", "Feature Overview", ...],
"words": {
"window": [[173, 5], [174, 5], [9, 1], ...],
...
}
}
Where [173, 5] means page 173 with weight 5 (title match)
With average text files of ~300 bytes, loading all 20 results only costs ~6KB total. This provides better UX by showing context snippets for all results, not just the top 5. Benefits: - All results show highlighted context snippets - Still efficient (~6KB for 20 results) - Text files cached after first load - Parallel loading keeps it fast
philpax
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This commit implements a MediaWiki-style search feature for the static site generator.
Features: