inspect: resurrect the inspect command (#9655)

resurrect the inspect command from #6785

Co-authored-by: Sam Kleinman <garen@tychoish.com>
Co-authored-by: Thane Thomson <connect@thanethomson.com>
Co-authored-by: Callum Waters <cmwaters19@gmail.com>

libs/strings/string.go

@@ -32,6 +32,27 @@ func SplitAndTrim(s, sep, cutset string) []string {
 	return spl
 }
 
+// SplitAndTrimEmpty slices s into all subslices separated by sep and returns a
+// slice of the string s with all leading and trailing Unicode code points
+// contained in cutset removed. If sep is empty, SplitAndTrim splits after each
+// UTF-8 sequence. First part is equivalent to strings.SplitN with a count of
+// -1.  also filter out empty strings, only return non-empty strings.
+func SplitAndTrimEmpty(s, sep, cutset string) []string {
+	if s == "" {
+		return []string{}
+	}
+
+	spl := strings.Split(s, sep)
+	nonEmptyStrings := make([]string, 0, len(spl))
+	for i := 0; i < len(spl); i++ {
+		element := strings.Trim(spl[i], cutset)
+		if element != "" {
+			nonEmptyStrings = append(nonEmptyStrings, element)
+		}
+	}
+	return nonEmptyStrings
+}
+
 // Returns true if s is a non-empty printable non-tab ascii character.
 func IsASCIIText(s string) bool {
 	if len(s) == 0 {