Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
167429501b
This PR defines `String.Slice.replace` and redefines `String.replace` to use the `Slice` version. The new implementation is generic in the pattern, so it supports things like `"education".replace isVowel "☃!" = "☃!d☃!c☃!t☃!☃!n"`. Since it uses the `ForwardSearcher` infrastructure, `String` patterns are searched using KMP, unlike the previous implementation which had quadratic runtime. As a side effect, the behavior when replacing an empty string now matches that of most other programming languages, namely `"abc".replace "" "k" = "kakbkck"`. |
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| .github | ||
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| releases_drafts | ||
| script | ||
| src | ||
| stage0 | ||
| tests | ||
| .gitattributes | ||
| .gitignore | ||
| .gitpod.Dockerfile | ||
| .gitpod.yml | ||
| .ignore | ||
| CMakeLists.txt | ||
| CMakePresets.json | ||
| CODEOWNERS | ||
| CONTRIBUTING.md | ||
| flake.lock | ||
| flake.nix | ||
| lean-toolchain | ||
| lean.code-workspace | ||
| LICENSE | ||
| LICENSES | ||
| README.md | ||
| RELEASES.md | ||
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