feat: some experiments

template/slice.go

@@ -0,0 +1,46 @@
+package template
+
+func NewSlice(s string) Slice {
+	return Slice{
+		source: &s,
+		start:  0,
+		end:    len(s),
+	}
+}
+
+type Slice struct {
+	source     *string
+	start, end int
+}
+
+func (s Slice) Chars() []byte {
+	return []byte((*s.source)[s.start:s.end])
+}
+
+func (s Slice) Len() int {
+	return s.end - s.start
+}
+
+func (s Slice) At(i int) byte {
+	return (*s.source)[s.start+i]
+}
+
+func SliceFromString(s string, start, end int) Slice {
+	return Slice{
+		source: &s,
+		start:  start,
+		end:    end,
+	}
+}
+
+func (s Slice) String() string {
+	return (*s.source)[s.start:s.end]
+}
+
+func (s Slice) Slice(start, end int) Slice {
+	return Slice{
+		source: s.source,
+		start:  s.start + start,
+		end:    s.start + end,
+	}
+}