Changes to src/algo/. All files

src/algo/algo.go

@@ -304,7 +304,7 @@ func bonusAt(input *util.Chars, idx int) int16 {  func normalizeRune(r rune) rune { 	// Every key of the map folds to ASCII, so a rune the bitmap rejects cannot-	// be in it. TestNormalizedKeysAreFlagged pins that.+	// be in it. TestNormalizedKeysAreFlagged verifies that. 	if !util.MayFoldToAscii(r) { 		return r 	}

src/algo/fastpath_equiv_test.go

@@ -1,7 +1,7 @@ package algo  // Equivalence tests for the single- and two-character fast paths against the-// general FuzzyMatchV2 algorithm, which serves as the oracle.+// general FuzzyMatchV2 algorithm, which serves as the reference. // // Two complementary strategies: //   - Exhaustive: every string up to a fixed length over an alphabet that

src/algo/runeprefilter_test.go

@@ -29,9 +29,9 @@ func foldForTest(r rune, normalize bool) rune { }  // The prefilter is only safe on items whose runes cannot become ASCII. This-// pins util.MayFoldToAscii as a superset of the runes that actually can, over-// the whole Unicode range and both normalization modes. If normalize.go or the-// Go unicode tables change, this fails.+// verifies util.MayFoldToAscii as a superset of the runes that actually can,+// over the whole Unicode range and both normalization modes. If normalize.go+// or the Go unicode tables change, this fails. func TestMayFoldToAsciiIsSuperset(t *testing.T) { 	missed := 0 	for r := rune(utf8.RuneSelf); r <= unicode.MaxRune; r++ {@@ -51,8 +51,8 @@ func TestMayFoldToAsciiIsSuperset(t *testing.T) { 	} } -// Scripts that must stay unflagged, otherwise the prefilter never engages for-// them and Step C buys nothing.+// Scripts that must stay unflagged, otherwise the prefilter never runs for+// them and Step C has no effect. func TestMayFoldToAsciiExcludesMajorScripts(t *testing.T) { 	for _, s := range []struct { 		name   string@@ -62,9 +62,9 @@ func TestMayFoldToAsciiExcludesMajorScripts(t *testing.T) { 		{"Arabic", 0x0600, 0x06FF}, {"Thai", 0x0E00, 0x0E7F}, {"Devanagari", 0x0900, 0x097F}, 		{"CJK", 0x4E00, 0x9FFF}, {"Hangul", 0xAC00, 0xD7A3}, {"kana", 0x3040, 0x30FF}, 		{"box drawing", 0x2500, 0x257F}, {"emoji", 0x1F300, 0x1FAFF},-		// These sit between the Latin blocks and were swallowed by an earlier,-		// wider grouping of foldableRanges. General Punctuation is the costly-		// one: curly quotes, en and em dashes and the ellipsis live there.+		// These sit between the Latin blocks and were included in an earlier,+		// wider grouping of foldableRanges. General Punctuation matters most:+		// curly quotes, en and em dashes and the ellipsis are in it. 		{"Greek Extended", 0x1F00, 0x1FFF}, {"General Punctuation", 0x2000, 0x206F}, 		{"Currency Symbols", 0x20A0, 0x20CF}, {"CJK Symbols", 0x3000, 0x303F}, 	} {@@ -257,7 +257,7 @@ func TestNormalizeRuneUnchangedByGuard(t *testing.T) {  // Step G lets non-ASCII pattern runes use the scan, but only when no other // rune can transform into them. Being uncased is not sufficient: U+00DF has no-// simple uppercase yet U+1E9E lowercases onto it. This pins the guard against+// simple uppercase yet U+1E9E lowercases onto it. This checks the guard against // the full preimage relation over all of Unicode. func TestRunePrefilterableGuardIsSound(t *testing.T) { 	preimage := map[rune][]rune{}@@ -306,7 +306,7 @@ func TestRunePrefilterableGuardIsSound(t *testing.T) { 	} } -// The Step G path must actually engage and reject, otherwise the equivalence+// The Step G path must actually run and reject, otherwise the equivalence // test above proves nothing about non-ASCII patterns. func TestNonAsciiPatternPrefilterEngages(t *testing.T) { 	rng := rand.New(rand.NewSource(6))@@ -413,7 +413,7 @@ func FuzzRunePrefilter(f *testing.F) { 		} 		chars := util.ToChars([]byte(input)) 		if chars.IsBytes() {-			return // byte mode is the existing fuzzers' territory+			return // byte mode is covered by the existing fuzzers 		} 		for _, cs := range []bool{false, true} { 			for _, norm := range []bool{false, true} {