Difftastic: A structural diff that understands syntax
10 months ago
- #programming
- #diff-tool
- #syntax-analysis
- Difftastic is a structural diff tool that compares files based on syntax.
- Supports over 30 programming languages; falls back to textual diff for unrecognized extensions.
- Understands nesting, alignment, and line-wrapping in code comparisons.
- Performance issues with large files or many changes; high memory usage.
- Side-by-side display can sometimes be confusing.
- Regular updates fix crashes; not suitable for generating patches.
- Does not support AST merging or handling unordered data types.
- Can check for syntactic changes without full diffing (faster).
- Supports merge conflict markers for diffing conflicting files.
- Uses Dijkstra's algorithm for structural diffing; open-source under MIT license.