Switch to go in order to use tcell

buffer.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"io/ioutil"
+	"strings"
+)
+
+type Buffer struct {
+	r *Rope
+
+	// Path to the file on disk
+	path string
+	// Name of the buffer on the status line
+	name string
+
+	// This is the text stored everytime the buffer is saved to check if the buffer is modified
+	savedText string
+
+	text  string
+	lines []string
+}
+
+func newBuffer(txt, path string) *Buffer {
+	b := new(Buffer)
+	b.r = newRope(txt)
+	b.path = path
+	b.name = path
+	b.savedText = txt
+
+	b.update()
+
+	return b
+}
+
+func (b *Buffer) update() {
+	b.text = b.r.toString()
+	b.lines = strings.Split(b.text, "\n")
+}
+
+func (b *Buffer) save() error {
+	return b.saveAs(b.path)
+}
+
+func (b *Buffer) saveAs(filename string) error {
+	err := ioutil.WriteFile(filename, []byte(b.text), 0644)
+	return err
+}
+
+func (b *Buffer) insert(idx int, value string) {
+	b.r.insert(idx, value)
+	b.update()
+}
+
+func (b *Buffer) remove(start, end int) {
+	b.r.remove(start, end)
+	b.update()
+}
+
+func (b *Buffer) length() int {
+	return b.r.len
+}