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Diffstat (limited to 'src/pkg/regexp/all_test.go')
-rw-r--r--src/pkg/regexp/all_test.go479
1 files changed, 155 insertions, 324 deletions
diff --git a/src/pkg/regexp/all_test.go b/src/pkg/regexp/all_test.go
index 4bdd6c67e..3b2c489bc 100644
--- a/src/pkg/regexp/all_test.go
+++ b/src/pkg/regexp/all_test.go
@@ -37,80 +37,18 @@ type stringError struct {
}
var bad_re = []stringError{
- stringError{`*`, ErrBareClosure},
- stringError{`(abc`, ErrUnmatchedLpar},
- stringError{`abc)`, ErrUnmatchedRpar},
- stringError{`x[a-z`, ErrUnmatchedLbkt},
- stringError{`abc]`, ErrUnmatchedRbkt},
- stringError{`[z-a]`, ErrBadRange},
- stringError{`abc\`, ErrExtraneousBackslash},
- stringError{`a**`, ErrBadClosure},
- stringError{`a*+`, ErrBadClosure},
- stringError{`a??`, ErrBadClosure},
- stringError{`*`, ErrBareClosure},
- stringError{`\x`, ErrBadBackslash},
-}
-
-type vec []int
-
-type tester struct {
- re string
- text string
- match vec
-}
-
-var matches = []tester{
- tester{`^abcdefg`, "abcdefg", vec{0, 7}},
- tester{`a+`, "baaab", vec{1, 4}},
- tester{"abcd..", "abcdef", vec{0, 6}},
- tester{``, "", vec{0, 0}},
- tester{`a`, "a", vec{0, 1}},
- tester{`x`, "y", vec{}},
- tester{`b`, "abc", vec{1, 2}},
- tester{`.`, "a", vec{0, 1}},
- tester{`.*`, "abcdef", vec{0, 6}},
- tester{`^`, "abcde", vec{0, 0}},
- tester{`$`, "abcde", vec{5, 5}},
- tester{`^abcd$`, "abcd", vec{0, 4}},
- tester{`^bcd'`, "abcdef", vec{}},
- tester{`^abcd$`, "abcde", vec{}},
- tester{`a+`, "baaab", vec{1, 4}},
- tester{`a*`, "baaab", vec{0, 0}},
- tester{`[a-z]+`, "abcd", vec{0, 4}},
- tester{`[^a-z]+`, "ab1234cd", vec{2, 6}},
- tester{`[a\-\]z]+`, "az]-bcz", vec{0, 4}},
- tester{`[^\n]+`, "abcd\n", vec{0, 4}},
- tester{`[日本語]+`, "日本語日本語", vec{0, 18}},
- tester{`日本語+`, "日本語", vec{0, 9}},
- tester{`日本語+`, "日本語語語語", vec{0, 18}},
- tester{`()`, "", vec{0, 0, 0, 0}},
- tester{`(a)`, "a", vec{0, 1, 0, 1}},
- tester{`(.)(.)`, "日a", vec{0, 4, 0, 3, 3, 4}},
- tester{`(.*)`, "", vec{0, 0, 0, 0}},
- tester{`(.*)`, "abcd", vec{0, 4, 0, 4}},
- tester{`(..)(..)`, "abcd", vec{0, 4, 0, 2, 2, 4}},
- tester{`(([^xyz]*)(d))`, "abcd", vec{0, 4, 0, 4, 0, 3, 3, 4}},
- tester{`((a|b|c)*(d))`, "abcd", vec{0, 4, 0, 4, 2, 3, 3, 4}},
- tester{`(((a|b|c)*)(d))`, "abcd", vec{0, 4, 0, 4, 0, 3, 2, 3, 3, 4}},
- tester{`a*(|(b))c*`, "aacc", vec{0, 4, 2, 2, -1, -1}},
- tester{`(.*).*`, "ab", vec{0, 2, 0, 2}},
- tester{`[.]`, ".", vec{0, 1}},
- tester{`/$`, "/abc/", vec{4, 5}},
- tester{`/$`, "/abc", vec{}},
-
- // fixed bugs
- tester{`ab$`, "cab", vec{1, 3}},
- tester{`axxb$`, "axxcb", vec{}},
- tester{`data`, "daXY data", vec{5, 9}},
- tester{`da(.)a$`, "daXY data", vec{5, 9, 7, 8}},
-
- // can backslash-escape any punctuation
- tester{`\!\"\#\$\%\&\'\(\)\*\+\,\-\.\/\:\;\<\=\>\?\@\[\\\]\^\_\{\|\}\~`,
- `!"#$%&'()*+,-./:;<=>?@[\]^_{|}~`, vec{0, 31}},
- tester{`[\!\"\#\$\%\&\'\(\)\*\+\,\-\.\/\:\;\<\=\>\?\@\[\\\]\^\_\{\|\}\~]+`,
- `!"#$%&'()*+,-./:;<=>?@[\]^_{|}~`, vec{0, 31}},
- tester{"\\`", "`", vec{0, 1}},
- tester{"[\\`]+", "`", vec{0, 1}},
+ {`*`, ErrBareClosure},
+ {`(abc`, ErrUnmatchedLpar},
+ {`abc)`, ErrUnmatchedRpar},
+ {`x[a-z`, ErrUnmatchedLbkt},
+ {`abc]`, ErrUnmatchedRbkt},
+ {`[z-a]`, ErrBadRange},
+ {`abc\`, ErrExtraneousBackslash},
+ {`a**`, ErrBadClosure},
+ {`a*+`, ErrBadClosure},
+ {`a??`, ErrBadClosure},
+ {`*`, ErrBareClosure},
+ {`\x`, ErrBadBackslash},
}
func compileTest(t *testing.T, expr string, error os.Error) *Regexp {
@@ -121,66 +59,6 @@ func compileTest(t *testing.T, expr string, error os.Error) *Regexp {
return re
}
-func printVec(t *testing.T, m []int) {
- l := len(m)
- if l == 0 {
- t.Log("\t<no match>")
- } else {
- if m[len(m)-1] == -1 {
- m = m[0 : len(m)-2]
- }
- t.Log("\t", m)
- }
-}
-
-func equal(m1, m2 []int) bool {
- l := len(m1)
- if l != len(m2) {
- return false
- }
- for i := 0; i < l; i++ {
- if m1[i] != m2[i] {
- return false
- }
- }
- return true
-}
-
-func equalStrings(m1, m2 []string) bool {
- l := len(m1)
- if l != len(m2) {
- return false
- }
- for i := 0; i < l; i++ {
- if m1[i] != m2[i] {
- return false
- }
- }
- return true
-}
-
-func executeTest(t *testing.T, expr string, str string, match []int) {
- re := compileTest(t, expr, nil)
- if re == nil {
- return
- }
- m := re.ExecuteString(str)
- if !equal(m, match) {
- t.Errorf("ExecuteString failure on %#q matching %q:", expr, str)
- printVec(t, m)
- t.Log("should be:")
- printVec(t, match)
- }
- // now try bytes
- m = re.Execute([]byte(str))
- if !equal(m, match) {
- t.Errorf("Execute failure on %#q matching %q:", expr, str)
- printVec(t, m)
- t.Log("should be:")
- printVec(t, match)
- }
-}
-
func TestGoodCompile(t *testing.T) {
for i := 0; i < len(good_re); i++ {
compileTest(t, good_re[i], nil)
@@ -193,57 +71,41 @@ func TestBadCompile(t *testing.T) {
}
}
-func TestExecute(t *testing.T) {
- for i := 0; i < len(matches); i++ {
- test := &matches[i]
- executeTest(t, test.re, test.text, test.match)
- }
-}
-
-func matchTest(t *testing.T, expr string, str string, match []int) {
- re := compileTest(t, expr, nil)
+func matchTest(t *testing.T, test *FindTest) {
+ re := compileTest(t, test.pat, nil)
if re == nil {
return
}
- m := re.MatchString(str)
- if m != (len(match) > 0) {
- t.Errorf("MatchString failure on %#q matching %q: %t should be %t", expr, str, m, len(match) > 0)
+ m := re.MatchString(test.text)
+ if m != (len(test.matches) > 0) {
+ t.Errorf("MatchString failure on %s: %t should be %t", test, m, len(test.matches) > 0)
}
// now try bytes
- m = re.Match([]byte(str))
- if m != (len(match) > 0) {
- t.Errorf("Match failure on %#q matching %q: %t should be %t", expr, str, m, len(match) > 0)
+ m = re.Match([]byte(test.text))
+ if m != (len(test.matches) > 0) {
+ t.Errorf("Match failure on %s: %t should be %t", test, m, len(test.matches) > 0)
}
}
func TestMatch(t *testing.T) {
- for i := 0; i < len(matches); i++ {
- test := &matches[i]
- matchTest(t, test.re, test.text, test.match)
+ for _, test := range findTests {
+ matchTest(t, &test)
}
}
-func TestMatchStrings(t *testing.T) {
- for i := 0; i < len(matches); i++ {
- test := &matches[i]
- matchTest(t, test.re, test.text, test.match)
- }
-}
-
-func matchFunctionTest(t *testing.T, expr string, str string, match []int) {
- m, err := MatchString(expr, str)
+func matchFunctionTest(t *testing.T, test *FindTest) {
+ m, err := MatchString(test.pat, test.text)
if err == nil {
return
}
- if m != (len(match) > 0) {
- t.Errorf("Match failure on %#q matching %q: %d should be %d", expr, str, m, len(match) > 0)
+ if m != (len(test.matches) > 0) {
+ t.Errorf("Match failure on %s: %t should be %t", test, m, len(test.matches) > 0)
}
}
func TestMatchFunction(t *testing.T) {
- for i := 0; i < len(matches); i++ {
- test := &matches[i]
- matchFunctionTest(t, test.re, test.text, test.match)
+ for _, test := range findTests {
+ matchFunctionTest(t, &test)
}
}
@@ -253,64 +115,64 @@ type ReplaceTest struct {
var replaceTests = []ReplaceTest{
// Test empty input and/or replacement, with pattern that matches the empty string.
- ReplaceTest{"", "", "", ""},
- ReplaceTest{"", "x", "", "x"},
- ReplaceTest{"", "", "abc", "abc"},
- ReplaceTest{"", "x", "abc", "xaxbxcx"},
+ {"", "", "", ""},
+ {"", "x", "", "x"},
+ {"", "", "abc", "abc"},
+ {"", "x", "abc", "xaxbxcx"},
// Test empty input and/or replacement, with pattern that does not match the empty string.
- ReplaceTest{"b", "", "", ""},
- ReplaceTest{"b", "x", "", ""},
- ReplaceTest{"b", "", "abc", "ac"},
- ReplaceTest{"b", "x", "abc", "axc"},
- ReplaceTest{"y", "", "", ""},
- ReplaceTest{"y", "x", "", ""},
- ReplaceTest{"y", "", "abc", "abc"},
- ReplaceTest{"y", "x", "abc", "abc"},
+ {"b", "", "", ""},
+ {"b", "x", "", ""},
+ {"b", "", "abc", "ac"},
+ {"b", "x", "abc", "axc"},
+ {"y", "", "", ""},
+ {"y", "x", "", ""},
+ {"y", "", "abc", "abc"},
+ {"y", "x", "abc", "abc"},
// Multibyte characters -- verify that we don't try to match in the middle
// of a character.
- ReplaceTest{"[a-c]*", "x", "\u65e5", "x\u65e5x"},
- ReplaceTest{"[^\u65e5]", "x", "abc\u65e5def", "xxx\u65e5xxx"},
+ {"[a-c]*", "x", "\u65e5", "x\u65e5x"},
+ {"[^\u65e5]", "x", "abc\u65e5def", "xxx\u65e5xxx"},
// Start and end of a string.
- ReplaceTest{"^[a-c]*", "x", "abcdabc", "xdabc"},
- ReplaceTest{"[a-c]*$", "x", "abcdabc", "abcdx"},
- ReplaceTest{"^[a-c]*$", "x", "abcdabc", "abcdabc"},
- ReplaceTest{"^[a-c]*", "x", "abc", "x"},
- ReplaceTest{"[a-c]*$", "x", "abc", "x"},
- ReplaceTest{"^[a-c]*$", "x", "abc", "x"},
- ReplaceTest{"^[a-c]*", "x", "dabce", "xdabce"},
- ReplaceTest{"[a-c]*$", "x", "dabce", "dabcex"},
- ReplaceTest{"^[a-c]*$", "x", "dabce", "dabce"},
- ReplaceTest{"^[a-c]*", "x", "", "x"},
- ReplaceTest{"[a-c]*$", "x", "", "x"},
- ReplaceTest{"^[a-c]*$", "x", "", "x"},
-
- ReplaceTest{"^[a-c]+", "x", "abcdabc", "xdabc"},
- ReplaceTest{"[a-c]+$", "x", "abcdabc", "abcdx"},
- ReplaceTest{"^[a-c]+$", "x", "abcdabc", "abcdabc"},
- ReplaceTest{"^[a-c]+", "x", "abc", "x"},
- ReplaceTest{"[a-c]+$", "x", "abc", "x"},
- ReplaceTest{"^[a-c]+$", "x", "abc", "x"},
- ReplaceTest{"^[a-c]+", "x", "dabce", "dabce"},
- ReplaceTest{"[a-c]+$", "x", "dabce", "dabce"},
- ReplaceTest{"^[a-c]+$", "x", "dabce", "dabce"},
- ReplaceTest{"^[a-c]+", "x", "", ""},
- ReplaceTest{"[a-c]+$", "x", "", ""},
- ReplaceTest{"^[a-c]+$", "x", "", ""},
+ {"^[a-c]*", "x", "abcdabc", "xdabc"},
+ {"[a-c]*$", "x", "abcdabc", "abcdx"},
+ {"^[a-c]*$", "x", "abcdabc", "abcdabc"},
+ {"^[a-c]*", "x", "abc", "x"},
+ {"[a-c]*$", "x", "abc", "x"},
+ {"^[a-c]*$", "x", "abc", "x"},
+ {"^[a-c]*", "x", "dabce", "xdabce"},
+ {"[a-c]*$", "x", "dabce", "dabcex"},
+ {"^[a-c]*$", "x", "dabce", "dabce"},
+ {"^[a-c]*", "x", "", "x"},
+ {"[a-c]*$", "x", "", "x"},
+ {"^[a-c]*$", "x", "", "x"},
+
+ {"^[a-c]+", "x", "abcdabc", "xdabc"},
+ {"[a-c]+$", "x", "abcdabc", "abcdx"},
+ {"^[a-c]+$", "x", "abcdabc", "abcdabc"},
+ {"^[a-c]+", "x", "abc", "x"},
+ {"[a-c]+$", "x", "abc", "x"},
+ {"^[a-c]+$", "x", "abc", "x"},
+ {"^[a-c]+", "x", "dabce", "dabce"},
+ {"[a-c]+$", "x", "dabce", "dabce"},
+ {"^[a-c]+$", "x", "dabce", "dabce"},
+ {"^[a-c]+", "x", "", ""},
+ {"[a-c]+$", "x", "", ""},
+ {"^[a-c]+$", "x", "", ""},
// Other cases.
- ReplaceTest{"abc", "def", "abcdefg", "defdefg"},
- ReplaceTest{"bc", "BC", "abcbcdcdedef", "aBCBCdcdedef"},
- ReplaceTest{"abc", "", "abcdabc", "d"},
- ReplaceTest{"x", "xXx", "xxxXxxx", "xXxxXxxXxXxXxxXxxXx"},
- ReplaceTest{"abc", "d", "", ""},
- ReplaceTest{"abc", "d", "abc", "d"},
- ReplaceTest{".+", "x", "abc", "x"},
- ReplaceTest{"[a-c]*", "x", "def", "xdxexfx"},
- ReplaceTest{"[a-c]+", "x", "abcbcdcdedef", "xdxdedef"},
- ReplaceTest{"[a-c]*", "x", "abcbcdcdedef", "xdxdxexdxexfx"},
+ {"abc", "def", "abcdefg", "defdefg"},
+ {"bc", "BC", "abcbcdcdedef", "aBCBCdcdedef"},
+ {"abc", "", "abcdabc", "d"},
+ {"x", "xXx", "xxxXxxx", "xXxxXxxXxXxXxxXxxXx"},
+ {"abc", "d", "", ""},
+ {"abc", "d", "abc", "d"},
+ {".+", "x", "abc", "x"},
+ {"[a-c]*", "x", "def", "xdxexfx"},
+ {"[a-c]+", "x", "abcbcdcdedef", "xdxdedef"},
+ {"[a-c]*", "x", "abcbcdcdedef", "xdxdxexdxexfx"},
}
type ReplaceFuncTest struct {
@@ -320,9 +182,9 @@ type ReplaceFuncTest struct {
}
var replaceFuncTests = []ReplaceFuncTest{
- ReplaceFuncTest{"[a-c]", func(s string) string { return "x" + s + "y" }, "defabcdef", "defxayxbyxcydef"},
- ReplaceFuncTest{"[a-c]+", func(s string) string { return "x" + s + "y" }, "defabcdef", "defxabcydef"},
- ReplaceFuncTest{"[a-c]*", func(s string) string { return "x" + s + "y" }, "defabcdef", "xydxyexyfxabcydxyexyfxy"},
+ {"[a-c]", func(s string) string { return "x" + s + "y" }, "defabcdef", "defxayxbyxcydef"},
+ {"[a-c]+", func(s string) string { return "x" + s + "y" }, "defabcdef", "defxabcydef"},
+ {"[a-c]*", func(s string) string { return "x" + s + "y" }, "defabcdef", "xydxyexyfxabcydxyexyfxy"},
}
func TestReplaceAll(t *testing.T) {
@@ -367,18 +229,21 @@ func TestReplaceAllFunc(t *testing.T) {
}
}
-type QuoteMetaTest struct {
- pattern, output string
+type MetaTest struct {
+ pattern, output, literal string
+ isLiteral bool
}
-var quoteMetaTests = []QuoteMetaTest{
- QuoteMetaTest{``, ``},
- QuoteMetaTest{`foo`, `foo`},
- QuoteMetaTest{`!@#$%^&*()_+-=[{]}\|,<.>/?~`, `!@#\$%\^&\*\(\)_\+-=\[{\]}\\\|,<\.>/\?~`},
+var metaTests = []MetaTest{
+ {``, ``, ``, true},
+ {`foo`, `foo`, `foo`, true},
+ {`foo\.\$`, `foo\\\.\\\$`, `foo.$`, true}, // has meta but no operator
+ {`foo.\$`, `foo\.\\\$`, `foo`, false}, // has escaped operators and real operators
+ {`!@#$%^&*()_+-=[{]}\|,<.>/?~`, `!@#\$%\^&\*\(\)_\+-=\[{\]}\\\|,<\.>/\?~`, `!@#`, false},
}
func TestQuoteMeta(t *testing.T) {
- for _, tc := range quoteMetaTests {
+ for _, tc := range metaTests {
// Verify that QuoteMeta returns the expected string.
quoted := QuoteMeta(tc.pattern)
if quoted != tc.output {
@@ -407,96 +272,16 @@ func TestQuoteMeta(t *testing.T) {
}
}
-type matchCase struct {
- matchfunc string
- input string
- n int
- regexp string
- expected []string
-}
-
-var matchCases = []matchCase{
- matchCase{"match", " aa b", 0, "[^ ]+", []string{"aa", "b"}},
- matchCase{"match", " aa b", 0, "[^ ]*", []string{"", "aa", "b"}},
- matchCase{"match", "a b c", 0, "[^ ]*", []string{"a", "b", "c"}},
- matchCase{"match", "a:a: a:", 0, "^.:", []string{"a:"}},
- matchCase{"match", "", 0, "[^ ]*", []string{""}},
- matchCase{"match", "", 0, "", []string{""}},
- matchCase{"match", "a", 0, "", []string{"", ""}},
- matchCase{"match", "ab", 0, "^", []string{""}},
- matchCase{"match", "ab", 0, "$", []string{""}},
- matchCase{"match", "ab", 0, "X*", []string{"", "", ""}},
- matchCase{"match", "aX", 0, "X*", []string{"", "X"}},
- matchCase{"match", "XabX", 0, "X*", []string{"X", "", "X"}},
-
- matchCase{"matchit", "", 0, ".", []string{}},
- matchCase{"matchit", "abc", 2, ".", []string{"a", "b"}},
- matchCase{"matchit", "abc", 0, ".", []string{"a", "b", "c"}},
-}
-
-func printStringSlice(t *testing.T, s []string) {
- t.Logf("%#v", s)
-}
-
-func TestAllMatches(t *testing.T) {
- ch := make(chan matchCase)
- go func() {
- for _, c := range matchCases {
- ch <- c
- stringCase := matchCase{
- "string" + c.matchfunc,
- c.input,
- c.n,
- c.regexp,
- c.expected,
- }
- ch <- stringCase
- }
- close(ch)
- }()
-
- for c := range ch {
- var result []string
- re, _ := Compile(c.regexp)
-
- switch c.matchfunc {
- case "matchit":
- result = make([]string, len(c.input)+1)
- i := 0
- b := []byte(c.input)
- for match := range re.AllMatchesIter(b, c.n) {
- result[i] = string(match)
- i++
- }
- result = result[0:i]
- case "stringmatchit":
- result = make([]string, len(c.input)+1)
- i := 0
- for match := range re.AllMatchesStringIter(c.input, c.n) {
- result[i] = match
- i++
- }
- result = result[0:i]
- case "match":
- result = make([]string, len(c.input)+1)
- b := []byte(c.input)
- i := 0
- for _, match := range re.AllMatches(b, c.n) {
- result[i] = string(match)
- i++
- }
- result = result[0:i]
- case "stringmatch":
- result = re.AllMatchesString(c.input, c.n)
+func TestLiteralPrefix(t *testing.T) {
+ for _, tc := range metaTests {
+ // Literal method needs to scan the pattern.
+ re := MustCompile(tc.pattern)
+ str, complete := re.LiteralPrefix()
+ if complete != tc.isLiteral {
+ t.Errorf("LiteralPrefix(`%s`) = %t; want %t", tc.pattern, complete, tc.isLiteral)
}
-
- if !equalStrings(result, c.expected) {
- t.Errorf("testing '%s'.%s('%s', %d), expected: ",
- c.regexp, c.matchfunc, c.input, c.n)
- printStringSlice(t, c.expected)
- t.Log("got: ")
- printStringSlice(t, result)
- t.Log("\n")
+ if str != tc.literal {
+ t.Errorf("LiteralPrefix(`%s`) = `%s`; want `%s`", tc.pattern, str, tc.literal)
}
}
}
@@ -507,16 +292,16 @@ type numSubexpCase struct {
}
var numSubexpCases = []numSubexpCase{
- numSubexpCase{``, 0},
- numSubexpCase{`.*`, 0},
- numSubexpCase{`abba`, 0},
- numSubexpCase{`ab(b)a`, 1},
- numSubexpCase{`ab(.*)a`, 1},
- numSubexpCase{`(.*)ab(.*)a`, 2},
- numSubexpCase{`(.*)(ab)(.*)a`, 3},
- numSubexpCase{`(.*)((a)b)(.*)a`, 4},
- numSubexpCase{`(.*)(\(ab)(.*)a`, 3},
- numSubexpCase{`(.*)(\(a\)b)(.*)a`, 3},
+ {``, 0},
+ {`.*`, 0},
+ {`abba`, 0},
+ {`ab(b)a`, 1},
+ {`ab(.*)a`, 1},
+ {`(.*)ab(.*)a`, 2},
+ {`(.*)(ab)(.*)a`, 3},
+ {`(.*)((a)b)(.*)a`, 4},
+ {`(.*)(\(ab)(.*)a`, 3},
+ {`(.*)(\(a\)b)(.*)a`, 3},
}
func TestNumSubexp(t *testing.T) {
@@ -592,3 +377,49 @@ func BenchmarkReplaceAll(b *testing.B) {
re.ReplaceAllString(x, "")
}
}
+
+func BenchmarkAnchoredLiteralShortNonMatch(b *testing.B) {
+ b.StopTimer()
+ x := []byte("abcdefghijklmnopqrstuvwxyz")
+ re := MustCompile("^zbc(d|e)")
+ b.StartTimer()
+ for i := 0; i < b.N; i++ {
+ re.Match(x)
+ }
+}
+
+func BenchmarkAnchoredLiteralLongNonMatch(b *testing.B) {
+ b.StopTimer()
+ x := []byte("abcdefghijklmnopqrstuvwxyz")
+ for i := 0; i < 15; i++ {
+ x = append(x, x...)
+ }
+ re := MustCompile("^zbc(d|e)")
+ b.StartTimer()
+ for i := 0; i < b.N; i++ {
+ re.Match(x)
+ }
+}
+
+func BenchmarkAnchoredShortMatch(b *testing.B) {
+ b.StopTimer()
+ x := []byte("abcdefghijklmnopqrstuvwxyz")
+ re := MustCompile("^.bc(d|e)")
+ b.StartTimer()
+ for i := 0; i < b.N; i++ {
+ re.Match(x)
+ }
+}
+
+func BenchmarkAnchoredLongMatch(b *testing.B) {
+ b.StopTimer()
+ x := []byte("abcdefghijklmnopqrstuvwxyz")
+ for i := 0; i < 15; i++ {
+ x = append(x, x...)
+ }
+ re := MustCompile("^.bc(d|e)")
+ b.StartTimer()
+ for i := 0; i < b.N; i++ {
+ re.Match(x)
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 02:16:23 +0000