diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/manual/change-authors.yml | 4 | ||||
| -rw-r--r-- | doc/manual/rl-next/boost-regex.md | 37 |
2 files changed, 41 insertions, 0 deletions
diff --git a/doc/manual/change-authors.yml b/doc/manual/change-authors.yml index e18abada1..d9303a747 100644 --- a/doc/manual/change-authors.yml +++ b/doc/manual/change-authors.yml @@ -129,6 +129,10 @@ roberth: display_name: Robert Hensing github: roberth +sugar: + forgejo: sugar + github: sugar700 + thufschmitt: display_name: Théophane Hufschmitt github: thufschmitt diff --git a/doc/manual/rl-next/boost-regex.md b/doc/manual/rl-next/boost-regex.md new file mode 100644 index 000000000..c541434d0 --- /dev/null +++ b/doc/manual/rl-next/boost-regex.md @@ -0,0 +1,37 @@ +--- +synopsis: Replace regex engine with boost::regex +issues: [fj#34, fj#476] +cls: [1821] +category: Fixes +credits: [sugar] +--- + +Previously, the C++ standard regex expression library was used, the +behaviour of which varied depending on the platform. This has been +replaced with the Boost regex library, which works identically across +platforms. + +The visible behaviour of the regex functions doesn't change. While +the new library has more features, Lix will reject regular expressions +using them. + +This also fixes regex matching reporting stack overflow when matching +on too much data. + +Before: + + nix-repl> builtins.match ".*" ( + builtins.concatStringsSep "" ( + builtins.genList (_: "a") 1000000 + ) + ) + error: stack overflow (possible infinite recursion) + +After: + + nix-repl> builtins.match ".*" ( + builtins.concatStringsSep "" ( + builtins.genList (_: "a") 1000000 + ) + ) + [ ] |