Line number now counting from 1.

Author: maxim2266

csvplus.go

@@ -1056,7 +1056,8 @@ func (r *Reader) Iterate(fn RowFunc) error {
 
 	// header
 	var header map[string]int
-	var lineNo uint64
+
+	lineNo := uint64(1)
 
 	if r.headerFromFirstRow {
 		if header, err = r.makeHeader(reader); err != nil {
@@ -1184,7 +1185,7 @@ func mapError(err error, lineNo uint64) error {
 
 // DataSourceError is the type of the error returned from Reader.Iterate method.
 type DataSourceError struct {
-	Line uint64
+	Line uint64 // counting from 1
 	Err  error
 }
 

csvplus_test.go

@@ -808,7 +808,7 @@ func TestErrors(t *testing.T) {
 	// invalid column name
 	err := Take(FromFile(tempFiles["people"]).SelectColumns("id", "name", "xxx"))(neverCalled)
 
-	if err == nil || !strings.HasSuffix(err.Error(), "Row 0: Column not found: xxx") {
+	if err == nil || !strings.HasSuffix(err.Error(), "Row 1: Column not found: xxx") {
 		t.Error("Unexpected error:", err)
 		return
 	}
@@ -889,7 +889,7 @@ func TestErrors(t *testing.T) {
 
 	err = people(neverCalled)
 
-	if err == nil || !strings.HasSuffix(err.Error(), `Row 0: Misplaced column "surname": expected at pos. 3, but found at pos. 2`) {
+	if err == nil || !strings.HasSuffix(err.Error(), `Row 1: Misplaced column "surname": expected at pos. 3, but found at pos. 2`) {
 		t.Error("Unexpected error:", err)
 		return
 	}
@@ -901,7 +901,7 @@ func TestErrors(t *testing.T) {
 
 	err = people(neverCalled)
 
-	if err == nil || !strings.HasSuffix(err.Error(), `Row 0: Misplaced column "surname": expected at pos. 25, but found at pos. 2`) {
+	if err == nil || !strings.HasSuffix(err.Error(), `Row 1: Misplaced column "surname": expected at pos. 25, but found at pos. 2`) {
 		t.Error("Unexpected error:", err)
 		return
 	}