✨ up: strutil - add new function: SplitByWhitespace

strutil/split.go

@@ -1,6 +1,9 @@
 package strutil
 
-import "strings"
+import (
+	"regexp"
+	"strings"
+)
 
 // BeforeFirst get substring before first sep.
 func BeforeFirst(s, sep string) string {
@@ -137,6 +140,14 @@ func SplitNTrimmed(s, sep string, n int) (ss []string) {
 	return
 }
 
+// 根据空白字符（空格，TAB，换行等）分隔字符串
+var whitespaceRegexp = regexp.MustCompile("\\s+")
+
+// SplitByWhitespace Separate strings by whitespace characters (space, TAB, newline, etc.)
+func SplitByWhitespace(s string) []string {
+	return whitespaceRegexp.Split(s, -1)
+}
+
 // Substr for a string.
 // if length <= 0, return pos to end.
 func Substr(s string, pos, length int) string {

strutil/split_test.go

@@ -105,6 +105,14 @@ func TestSplitTrimmed(t *testing.T) {
 	assert.Eq(t, `[]string{"a", ", b,c"}`, fmt.Sprintf("%#v", ss))
 }
 
+func TestSplitByWhitespace(t *testing.T) {
+	ss := strutil.SplitByWhitespace("a  b c")
+	assert.Eq(t, `[]string{"a", "b", "c"}`, fmt.Sprintf("%#v", ss))
+
+	ss = strutil.SplitByWhitespace("a\r\nb\tc d")
+	assert.Eq(t, `[]string{"a", "b", "c", "d"}`, fmt.Sprintf("%#v", ss))
+}
+
 func TestSubstr(t *testing.T) {
 	assert.Eq(t, "abc", strutil.Substr("abcDef", 0, 3))
 	assert.Eq(t, "cD", strutil.Substr("abcDef", 2, 2))