Fix tap constants.

Library/Homebrew/tap_constants.rb

@@ -5,7 +5,7 @@
 HOMEBREW_TAP_FORMULA_NAME_REGEX = T.let(/(?<name>[\w+\-.@]+)/, Regexp)
 # Match taps' formulae, e.g. `someuser/sometap/someformula`.
 HOMEBREW_TAP_FORMULA_REGEX = T.let(
-  %r{\A(?<user>[\w-]+)/(?<repo>[\w-]+)/#{HOMEBREW_TAP_FORMULA_NAME_REGEX.source}\Z},
+  %r{\A(?<user>[^/]+)/(?<repo>[^/]+)/#{HOMEBREW_TAP_FORMULA_NAME_REGEX.source}\Z},
   Regexp,
 )
 # Match default formula taps' formulae, e.g. `homebrew/core/someformula` or `someformula`.
@@ -18,7 +18,7 @@ HOMEBREW_DEFAULT_TAP_FORMULA_REGEX = T.let(
 HOMEBREW_TAP_CASK_TOKEN_REGEX = T.let(/(?<token>[a-z0-9\-_]+(?:@[a-z0-9\-_.]+)?)/, Regexp)
 # Match taps' casks, e.g. `someuser/sometap/somecask`.
 HOMEBREW_TAP_CASK_REGEX = T.let(
-  %r{\A(?<user>[\w-]+)/(?<repo>[\w-]+)/#{HOMEBREW_TAP_CASK_TOKEN_REGEX.source}\Z},
+  %r{\A(?<user>[^/]+)/(?<repo>[^/]+)/#{HOMEBREW_TAP_CASK_TOKEN_REGEX.source}\Z},
   Regexp,
 )
 # Match default cask taps' casks, e.g. `homebrew/cask/somecask` or `somecask`.
@@ -29,14 +29,19 @@ HOMEBREW_DEFAULT_TAP_CASK_REGEX = T.let(
 
 # Match taps' directory paths, e.g. `HOMEBREW_LIBRARY/Taps/someuser/sometap`.
 HOMEBREW_TAP_DIR_REGEX = T.let(
-  %r{#{Regexp.escape(HOMEBREW_LIBRARY.to_s)}/Taps/(?<user>[\w-]+)/(?<repo>[\w-]+)},
+  %r{#{Regexp.escape(HOMEBREW_LIBRARY.to_s)}/Taps/(?<user>[^/]+)/(?<repo>[^/]+)},
   Regexp,
 )
 # Match taps' formula paths, e.g. `HOMEBREW_LIBRARY/Taps/someuser/sometap/someformula`.
 HOMEBREW_TAP_PATH_REGEX = T.let(Regexp.new(HOMEBREW_TAP_DIR_REGEX.source + %r{(?:/.*)?\Z}.source).freeze, Regexp)
-# Match official taps' casks, e.g. `homebrew/cask/somecask or homebrew/cask-versions/somecask`.
+# Match official cask taps, e.g `homebrew/cask`.
+HOMEBREW_CASK_TAP_REGEX = T.let(
+  %r{(?:([Cc]askroom)/(cask|versions)|([Hh]omebrew)/(?:homebrew-)?(cask|cask-[\w-]+))},
+  Regexp,
+)
+# Match official taps' casks, e.g. `homebrew/cask/somecask` or `homebrew/cask-versions/somecask`.
 HOMEBREW_CASK_TAP_CASK_REGEX = T.let(
-  %r{\A(?:([Cc]askroom)/(cask|versions)|([Hh]omebrew)/(?:homebrew-)?(cask|cask-[\w-]+))/([\w+-.]+)\Z},
+  %r{\A#{HOMEBREW_CASK_TAP_REGEX.source}/#{HOMEBREW_TAP_CASK_TOKEN_REGEX.source}\Z},
   Regexp,
 )
 HOMEBREW_OFFICIAL_REPO_PREFIXES_REGEX = T.let(/\A(home|linux)brew-/, Regexp)

Library/Homebrew/test/tap_spec.rb

@@ -126,6 +126,18 @@ RSpec.describe Tap do
     it "returns the Tap when given its exact path" do
       expect(described_class.from_path(path)).to eq tap
     end
+
+    context "when path contains a dot" do
+      let(:tap) { described_class.fetch("str4d.xyz", "rage") }
+
+      after do
+        tap.uninstall
+      end
+
+      it "returns the Tap when given its exact path" do
+        expect(described_class.from_path(path)).to eq tap
+      end
+    end
   end
 
   specify "::names" do