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regexp: use backquotes for all regular expression examples #28879

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cn0047 wants to merge 8 commits into from
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regexp: use backquotes for all regular expression examples #28879

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0055708
reflect: Add comment for String method of Kind struct
cn0047 Nov 15, 2018
93694d7
Revert "reflect: Add comment for String method of Kind struct"
cn0047 Nov 15, 2018
66205b2
regexp: add matching and finding examples
cn0047 Nov 16, 2018
57239eb
regexp: add matching and finding examples
cn0047 Nov 17, 2018
33f34b7
regexp: add matching and finding examples
cn0047 Nov 19, 2018
dd998ff
Merge branch 'master' of https://github.com/golang/go
cn0047 Nov 20, 2018
058ecd7
Merge branch 'master' into dev-Kovpak-regexp
cn0047 Nov 20, 2018
e3e636c
regexp: use backquotes for all regular expression examples
cn0047 Nov 20, 2018
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42 changes: 21 additions & 21 deletions src/regexp/example_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -40,11 +40,11 @@ func ExampleMatch() {
}

func ExampleMatchString() {
matched, err := regexp.MatchString("foo.*", "seafood")
matched, err := regexp.MatchString(`foo.*`, "seafood")
fmt.Println(matched, err)
matched, err = regexp.MatchString("bar.*", "seafood")
matched, err = regexp.MatchString(`bar.*`, "seafood")
fmt.Println(matched, err)
matched, err = regexp.MatchString("a(b", "seafood")
matched, err = regexp.MatchString(`a(b`, "seafood")
fmt.Println(matched, err)
// Output:
// true <nil>
Expand All @@ -53,53 +53,53 @@ func ExampleMatchString() {
}

func ExampleQuoteMeta() {
fmt.Println(regexp.QuoteMeta("Escaping symbols like: .+*?()|[]{}^$"))
fmt.Println(regexp.QuoteMeta(`Escaping symbols like: .+*?()|[]{}^$`))
// Output:
// Escaping symbols like: \.\+\*\?\(\)\|\[\]\{\}\^\$
}

func ExampleRegexp_Find() {
re := regexp.MustCompile("foo.?")
re := regexp.MustCompile(`foo.?`)
fmt.Printf("%q\n", re.Find([]byte(`seafood fool`)))

// Output:
// "food"
}

func ExampleRegexp_FindAll() {
re := regexp.MustCompile("foo.?")
re := regexp.MustCompile(`foo.?`)
fmt.Printf("%q\n", re.FindAll([]byte(`seafood fool`), -1))

// Output:
// ["food" "fool"]
}

func ExampleRegexp_FindAllSubmatch() {
re := regexp.MustCompile("foo(.?)")
re := regexp.MustCompile(`foo(.?)`)
fmt.Printf("%q\n", re.FindAllSubmatch([]byte(`seafood fool`), -1))

// Output:
// [["food" "d"] ["fool" "l"]]
}

func ExampleRegexp_FindSubmatch() {
re := regexp.MustCompile("foo(.?)")
re := regexp.MustCompile(`foo(.?)`)
fmt.Printf("%q\n", re.FindSubmatch([]byte(`seafood fool`)))

// Output:
// ["food" "d"]
}

func ExampleRegexp_Match() {
re := regexp.MustCompile("foo.?")
re := regexp.MustCompile(`foo.?`)
fmt.Println(re.Match([]byte(`seafood fool`)))

// Output:
// true
}

func ExampleRegexp_FindString() {
re := regexp.MustCompile("foo.?")
re := regexp.MustCompile(`foo.?`)
fmt.Printf("%q\n", re.FindString("seafood fool"))
fmt.Printf("%q\n", re.FindString("meat"))
// Output:
Expand All @@ -108,7 +108,7 @@ func ExampleRegexp_FindString() {
}

func ExampleRegexp_FindStringIndex() {
re := regexp.MustCompile("ab?")
re := regexp.MustCompile(`ab?`)
fmt.Println(re.FindStringIndex("tablett"))
fmt.Println(re.FindStringIndex("foo") == nil)
// Output:
Expand All @@ -117,7 +117,7 @@ func ExampleRegexp_FindStringIndex() {
}

func ExampleRegexp_FindStringSubmatch() {
re := regexp.MustCompile("a(x*)b(y|z)c")
re := regexp.MustCompile(`a(x*)b(y|z)c`)
fmt.Printf("%q\n", re.FindStringSubmatch("-axxxbyc-"))
fmt.Printf("%q\n", re.FindStringSubmatch("-abzc-"))
// Output:
Expand All @@ -126,7 +126,7 @@ func ExampleRegexp_FindStringSubmatch() {
}

func ExampleRegexp_FindAllString() {
re := regexp.MustCompile("a.")
re := regexp.MustCompile(`a.`)
fmt.Println(re.FindAllString("paranormal", -1))
fmt.Println(re.FindAllString("paranormal", 2))
fmt.Println(re.FindAllString("graal", -1))
Expand All @@ -139,7 +139,7 @@ func ExampleRegexp_FindAllString() {
}

func ExampleRegexp_FindAllStringSubmatch() {
re := regexp.MustCompile("a(x*)b")
re := regexp.MustCompile(`a(x*)b`)
fmt.Printf("%q\n", re.FindAllStringSubmatch("-ab-", -1))
fmt.Printf("%q\n", re.FindAllStringSubmatch("-axxb-", -1))
fmt.Printf("%q\n", re.FindAllStringSubmatch("-ab-axb-", -1))
Expand All @@ -152,7 +152,7 @@ func ExampleRegexp_FindAllStringSubmatch() {
}

func ExampleRegexp_FindAllStringSubmatchIndex() {
re := regexp.MustCompile("a(x*)b")
re := regexp.MustCompile(`a(x*)b`)
// Indices:
// 01234567 012345678
// -ab-axb- -axxb-ab-
Expand All @@ -170,7 +170,7 @@ func ExampleRegexp_FindAllStringSubmatchIndex() {
}

func ExampleRegexp_MatchString() {
re := regexp.MustCompile("(gopher){2}")
re := regexp.MustCompile(`(gopher){2}`)
fmt.Println(re.MatchString("gopher"))
fmt.Println(re.MatchString("gophergopher"))
fmt.Println(re.MatchString("gophergophergopher"))
Expand All @@ -181,7 +181,7 @@ func ExampleRegexp_MatchString() {
}

func ExampleRegexp_ReplaceAllLiteralString() {
re := regexp.MustCompile("a(x*)b")
re := regexp.MustCompile(`a(x*)b`)
fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "T"))
fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "$1"))
fmt.Println(re.ReplaceAllLiteralString("-ab-axxb-", "${1}"))
Expand All @@ -192,7 +192,7 @@ func ExampleRegexp_ReplaceAllLiteralString() {
}

func ExampleRegexp_ReplaceAllString() {
re := regexp.MustCompile("a(x*)b")
re := regexp.MustCompile(`a(x*)b`)
fmt.Println(re.ReplaceAllString("-ab-axxb-", "T"))
fmt.Println(re.ReplaceAllString("-ab-axxb-", "$1"))
fmt.Println(re.ReplaceAllString("-ab-axxb-", "$1W"))
Expand All @@ -205,7 +205,7 @@ func ExampleRegexp_ReplaceAllString() {
}

func ExampleRegexp_SubexpNames() {
re := regexp.MustCompile("(?P<first>[a-zA-Z]+) (?P<last>[a-zA-Z]+)")
re := regexp.MustCompile(`(?P<first>[a-zA-Z]+) (?P<last>[a-zA-Z]+)`)
fmt.Println(re.MatchString("Alan Turing"))
fmt.Printf("%q\n", re.SubexpNames())
reversed := fmt.Sprintf("${%s} ${%s}", re.SubexpNames()[2], re.SubexpNames()[1])
Expand All @@ -219,12 +219,12 @@ func ExampleRegexp_SubexpNames() {
}

func ExampleRegexp_Split() {
a := regexp.MustCompile("a")
a := regexp.MustCompile(`a`)
fmt.Println(a.Split("banana", -1))
fmt.Println(a.Split("banana", 0))
fmt.Println(a.Split("banana", 1))
fmt.Println(a.Split("banana", 2))
zp := regexp.MustCompile("z+")
zp := regexp.MustCompile(`z+`)
fmt.Println(zp.Split("pizza", -1))
fmt.Println(zp.Split("pizza", 0))
fmt.Println(zp.Split("pizza", 1))
Expand Down