remove limited utility escape function

escape_test.go

@@ -1,19 +0,0 @@
-package textedit_test
-
-import (
-	"bytes"
-	"code.squareroundforest.org/arpio/textedit"
-	"testing"
-)
-
-func TestEscape(t *testing.T) {
-	t.Run("basic", func(t *testing.T) {
-		var b bytes.Buffer
-		w := textedit.New(&b, textedit.Escape('\\', '\n', '\t', '"'))
-		w.Write([]byte("foo\nbar\t\"baz\""))
-		w.Flush()
-		if b.String() != "foo\\\nbar\\\t\\\"baz\\\"" {
-			t.Fatal(b.String())
-		}
-	})
-}

lib.go

@@ -77,13 +77,6 @@ func Replace(a ...string) Editor {
 	return replace(a...)
 }
 
-// Escape can be used for basic escaping, where the found characters from the chars argument are replaced with
-// the same character prefixed by the escape char in the esc argument. The escape char will be escaped
-// automatically.
-func Escape(esc rune, chars ...rune) Editor {
-	return escape(esc, chars...)
-}
-
 // Indent applies indentation to multi-line text. Whitespaces are preserved.
 func Indent(first, rest string) Editor {
 	return indent([]rune(first), []rune(rest))

replace.go

@@ -45,12 +45,3 @@ func replace(a ...string) Editor {
 
 	return sequence(e...)
 }
-
-func escape(esc rune, chars ...rune) Editor {
-	r := []string{string(esc), string([]rune{esc, esc})}
-	for _, c := range chars {
-		r = append(r, string(c), string([]rune{esc, c}))
-	}
-
-	return replace(r...)
-}