Add slices.Backward

mrclmr · mrclmr · commit a8a4010f6181 · 2025-05-18T12:40:44.000+02:00
diff --git a/annot.go b/annot.go
@@ -131,11 +131,10 @@ func Write(w io.Writer, annots ...*Annot) error {
 		a.createLines()
 	}
 
-	// Start with second last annotation index and decrement.
-	// The last annotation will always be on row=0 and needs
-	// no adjustment.
-	for aIdxDecr := len(annots) - 2; 0 <= aIdxDecr; aIdxDecr-- {
-		setRow(annots[aIdxDecr], annots[aIdxDecr+1:])
+	// Start with second last annotation index. The last annotation
+	// will always be on row=0 and needs no adjustment.
+	for aIdx := range slices.Backward(annots[:len(annots)-1]) {
+		setRow(annots[aIdx], annots[aIdx+1:])
 	}
 
 	return write(w, annots)

Original file line number	Diff line number	Diff line change
`@@ -131,11 +131,10 @@ func Write(w io.Writer, annots ...*Annot) error {`
`131`	`131`	`a.createLines()`
`132`	`132`	`}`
`133`	`133`
`134`		`- // Start with second last annotation index and decrement.`
`135`		`- // The last annotation will always be on row=0 and needs`
`136`		`- // no adjustment.`
`137`		`- for aIdxDecr := len(annots) - 2; 0 <= aIdxDecr; aIdxDecr-- {`
`138`		`- setRow(annots[aIdxDecr], annots[aIdxDecr+1:])`
	`134`	`+ // Start with second last annotation index. The last annotation`
	`135`	`+ // will always be on row=0 and needs no adjustment.`
	`136`	`+ for aIdx := range slices.Backward(annots[:len(annots)-1]) {`
	`137`	`+ setRow(annots[aIdx], annots[aIdx+1:])`
`139`	`138`	`}`
`140`	`139`
`141`	`140`	`return write(w, annots)`