nix develop: Fix bad regex

This was accepted by libstdc++ but not libc++. https://hydra.nixos.org/build/123569154
NixOS · Jul 3, 2020 · c3c7aed · c3c7aed · nixos-discourse · Jul 6, 2020
1 parent 6f8fd3a
commit c3c7aed
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/nix/develop.cc b/src/nix/develop.cc
@@ -50,7 +50,7 @@ BuildEnvironment readEnvironment(const Path & path)
         R"re((?:\$?'(?:[^'\\]|\\[abeEfnrtv\\'"?])*'))re";
 
     static std::string indexedArrayRegex =
-        R"re((?:\(( *\[[0-9]+]="(?:[^"\\]|\\.)*")**\)))re";
+        R"re((?:\(( *\[[0-9]+\]="(?:[^"\\]|\\.)*")*\)))re";
 
     static std::regex varRegex(
         "^(" + varNameRegex + ")=(" + simpleStringRegex + "|" + quotedStringRegex + "|" + indexedArrayRegex + ")\n");