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Diffstat (limited to 'src/libstore/path-regex.hh')
| -rw-r--r-- | src/libstore/path-regex.hh | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libstore/path-regex.hh b/src/libstore/path-regex.hh index a44e6a2eb..56c2cfc1d 100644 --- a/src/libstore/path-regex.hh +++ b/src/libstore/path-regex.hh @@ -3,6 +3,11 @@ namespace nix { -static constexpr std::string_view nameRegexStr = R"([0-9a-zA-Z\+\-_\?=][0-9a-zA-Z\+\-\._\?=]*)"; + +static constexpr std::string_view nameRegexStr = + // This uses a negative lookahead: (?!\.\.?(-|$)) + // - deny ".", "..", or those strings followed by '-' + // - when it's not those, start again at the start of the input and apply the next regex, which is [0-9a-zA-Z\+\-\._\?=]+ + R"((?!\.\.?(-|$))[0-9a-zA-Z\+\-\._\?=]+)"; } |