String Helpers from confetti-framework/support#5 PR

support/str/str.go

@@ -1,6 +1,10 @@
 package str
 
-import "unicode"
+import (
+	"regexp"
+	"strings"
+	"unicode"
+)
 
 func UpperFirst(input string) string {
 	if len(input) == 0 {
@@ -19,3 +23,221 @@ func InSlice(input interface{}, expects ...interface{}) bool {
 	}
 	return false
 }
+
+// Return the remainder of a string after the first occurrence of a given value.
+func After(subject string, search string) string {
+	if len(search) == 0 {
+		return subject
+	}
+	results := strings.SplitN(subject, search, 2)
+	return results[len(results)-1]
+}
+
+// Return the remainder of a string after the last occurrence of a given value.
+func AfterLast(subject string, search string) string {
+	if len(search) == 0 {
+		return subject
+	}
+	position := strings.LastIndex(subject, search)
+
+	if position == -1 {
+		return subject
+	}
+
+	return subject[position+len(search):]
+}
+
+// Get the portion of a string before the first occurrence of a given value.
+func Before(subject string, search string) string {
+	if len(search) == 0 {
+		return subject
+	}
+	position := strings.Index(subject, search)
+
+	if position == -1 {
+		return subject
+	}
+
+	return subject[:position]
+}
+
+func BeforeLast(subject string, search string) string {
+	if len(search) == 0 {
+		return subject
+	}
+	position := strings.LastIndex(subject, search)
+
+	if position == -1 {
+		return subject
+	}
+
+	return subject[:position]
+}
+
+func Between(subject string, from string, to string) string {
+	if len(from) == 0 || len(to) == 0 {
+		return subject
+	}
+
+	return BeforeLast(After(subject, from), to)
+}
+
+func Contains(haystack string, needle string) bool {
+	if len(needle) == 0 {
+		return false
+	}
+
+	return strings.Contains(haystack, needle)
+}
+
+func ContainsFromSlice(haystack string, needles []string) bool {
+	if len(needles) == 0 {
+		return false
+	}
+
+	for _, needle := range needles {
+		if Contains(haystack, needle) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func ContainsAllFromSlice(haystack string, needles []string) bool {
+	if len(needles) == 0 {
+		return false
+	}
+
+	for _, needle := range needles {
+		if !Contains(haystack, needle) {
+			return false
+		}
+	}
+
+	return true
+}
+
+func EndsWith(haystack string, needle string) bool {
+	if len(needle) == 0 {
+		return false
+	}
+
+	return strings.HasSuffix(haystack, needle)
+}
+
+func StartsWith(haystack string, needle string) bool {
+	if len(needle) == 0 {
+		return false
+	}
+
+	return strings.HasPrefix(haystack, needle)
+}
+
+func Lower(value string) string {
+	return strings.ToLower(value)
+}
+
+func Upper(value string) string {
+	return strings.ToUpper(value)
+}
+
+func Finish(value string, cap string) string {
+	quoted := regexp.QuoteMeta(cap)
+
+	re := regexp.MustCompile("(?:" + quoted + ")+$")
+	return re.ReplaceAllString(value, "") + cap
+}
+
+func Start(value string, prefix string) string {
+	quoted := regexp.QuoteMeta(prefix)
+
+	re := regexp.MustCompile("^(?:" + quoted + ")+")
+	return prefix + re.ReplaceAllString(value, "")
+}
+
+func Length(value string) int {
+	return len(value)
+}
+
+func Title(value string) string {
+	return strings.Title(strings.ToLower(value)) // This needs consideration
+}
+
+//
+//func Title(value string) string {
+//  // TODO
+//	return ""
+//}
+//
+// func Kebab(vale string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+//
+// func LimitCharacters(value string, limit int, end string) string{
+// 	// TODO
+// 	return ""
+// }
+//
+// func LimitWords(value string, limit int, end string) string{
+// 	// TODO
+// 	return ""
+// }
+//
+// func PadBoth(value string, length int, pad string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func PadLeft(value string, length int, pad string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func PadRight(value string, length int, pad string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func ReplaceArray(search string, replace []string, subject string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func ReplaceFirst(search string, replace string, subject string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func ReplaceLast(search string, replace string, subject string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func Slug(value string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func SlugWithDelimiter(value string, delimiter string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func Snake(value string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func Studly(value string) string {
+// 	// TODO
+// 	return ""
+// }
+//
+// func UcFirst(value string) string {
+// 	// TODO
+// 	return ""
+// }
+//