diff options
| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-12-12 23:13:29 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-12-12 23:13:29 +0000 |
| commit | a42a906c420d7bb196cb8541e0ab65264a0b04b0 (patch) | |
| tree | 8c441679e35147b1e9bec048f733fc394fb0c161 /libgo/go/regexp/example_test.go | |
| parent | bc77608b97abcc4bb3171f08a71e34ae342e9f8d (diff) | |
| download | gcc-a42a906c420d7bb196cb8541e0ab65264a0b04b0.zip gcc-a42a906c420d7bb196cb8541e0ab65264a0b04b0.tar.gz gcc-a42a906c420d7bb196cb8541e0ab65264a0b04b0.tar.bz2 | |
libgo: Update to current master library sources.
From-SVN: r194460
Diffstat (limited to 'libgo/go/regexp/example_test.go')
| -rw-r--r-- | libgo/go/regexp/example_test.go | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/libgo/go/regexp/example_test.go b/libgo/go/regexp/example_test.go index aa92e0b..b0ad9d3 100644 --- a/libgo/go/regexp/example_test.go +++ b/libgo/go/regexp/example_test.go @@ -20,3 +20,125 @@ func Example() { // false // false } + +func ExampleMatchString() { + matched, err := regexp.MatchString("foo.*", "seafood") + fmt.Println(matched, err) + matched, err = regexp.MatchString("bar.*", "seafood") + fmt.Println(matched, err) + matched, err = regexp.MatchString("a(b", "seafood") + fmt.Println(matched, err) + // Output: + // true <nil> + // false <nil> + // false error parsing regexp: missing closing ): `a(b` +} + +func ExampleRegexp_FindString() { + re := regexp.MustCompile("fo.?") + fmt.Printf("%q\n", re.FindString("seafood")) + fmt.Printf("%q\n", re.FindString("meat")) + // Output: + // "foo" + // "" +} + +func ExampleRegexp_FindStringIndex() { + re := regexp.MustCompile("ab?") + fmt.Println(re.FindStringIndex("tablett")) + fmt.Println(re.FindStringIndex("foo") == nil) + // Output: + // [1 3] + // true +} + +func ExampleRegexp_FindStringSubmatch() { + re := regexp.MustCompile("a(x*)b(y|z)c") + fmt.Printf("%q\n", re.FindStringSubmatch("-axxxbyc-")) + fmt.Printf("%q\n", re.FindStringSubmatch("-abzc-")) + // Output: + // ["axxxbyc" "xxx" "y"] + // ["abzc" "" "z"] +} + +func ExampleRegexp_FindAllString() { + re := regexp.MustCompile("a.") + fmt.Println(re.FindAllString("paranormal", -1)) + fmt.Println(re.FindAllString("paranormal", 2)) + fmt.Println(re.FindAllString("graal", -1)) + fmt.Println(re.FindAllString("none", -1)) + // Output: + // [ar an al] + // [ar an] + // [aa] + // [] +} + +func ExampleRegexp_FindAllStringSubmatch() { + 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)) + fmt.Printf("%q\n", re.FindAllStringSubmatch("-axxb-ab-", -1)) + // Output: + // [["ab" ""]] + // [["axxb" "xx"]] + // [["ab" ""] ["axb" "x"]] + // [["axxb" "xx"] ["ab" ""]] +} + +func ExampleRegexp_FindAllStringSubmatchIndex() { + re := regexp.MustCompile("a(x*)b") + // Indices: + // 01234567 012345678 + // -ab-axb- -axxb-ab- + fmt.Println(re.FindAllStringSubmatchIndex("-ab-", -1)) + fmt.Println(re.FindAllStringSubmatchIndex("-axxb-", -1)) + fmt.Println(re.FindAllStringSubmatchIndex("-ab-axb-", -1)) + fmt.Println(re.FindAllStringSubmatchIndex("-axxb-ab-", -1)) + fmt.Println(re.FindAllStringSubmatchIndex("-foo-", -1)) + // Output: + // [[1 3 2 2]] + // [[1 5 2 4]] + // [[1 3 2 2] [4 7 5 6]] + // [[1 5 2 4] [6 8 7 7]] + // [] +} + +func ExampleRegexp_ReplaceAllLiteralString() { + 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}")) + // Output: + // -T-T- + // -$1-$1- + // -${1}-${1}- +} + +func ExampleRegexp_ReplaceAllString() { + 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-", "$1W")) + fmt.Println(re.ReplaceAllString("-ab-axxb-", "${1}W")) + // Output: + // -T-T- + // --xx- + // --- + // -W-xxW- +} + +func ExampleRegexp_SubexpNames() { + 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]) + fmt.Println(reversed) + fmt.Println(re.ReplaceAllString("Alan Turing", reversed)) + // Output: + // true + // ["" "first" "last"] + // ${last} ${first} + // Turing Alan +} |