openRead returns one more layer of [] #77
Description
final data = await file
.openRead()
.transform(utf8.decoder)
.transform(csv.decoder)
.toList()
Upgrade from ^6.0.0 to csv: ^7.2.0, openRead returns one more layer of [], and now to read the header, it needs to be data.first.first. Is it working as expected or is it a bug?
[
[
[
"Amount",
"link-one",
"Name",
"Status",
"Tags",
"Done",
"Done (文本)",
"Created Time",
"单向",
"双向1",
"双向1A",
"双向1B"
],
[
"1.55",
"1.55",
"HelloKitty ",
"Pending",
"Archive, Important",
"true",
"true",
"2026/02/25 11:30",
"Beta Value 16",
"Beta Value 16, Upsilon Entry 35",
"HelloKitty , Okay ",
"1.55"
],
[
"2.23",
"2.23",
"Okay ",
"In Progress",
"Important",
"true",
"true",
"2026/02/26 11:30",
"",
"",
"",
"1.55"
],
[
"3",
"3, 40",
"Epsilon Data 29",
"Completed",
"Archive",
"true",
"true",
"2026/02/27 11:30",
"Eta Data 90",
"Omicron Data 92",
"Sigma Entry 95",
""
],
[
"40",
"",
"Sigma Entry 95",
"Pending",
"Archive",
"false",
"null",
"2026/02/28 11:30",
"",
"",
"Iota Value 73",
"3"
],
[
"5",
"",
"Iota Value 73",
"Completed",
"Urgent, Review, Important",
"false",
"null",
"2026/03/01 11:30",
"",
"",
"",
"40"
],
[
"672.0",
"",
"Delta Item 86",
"Cancelled",
"Archive",
"true",
"true",
"2026/03/02 11:30",
"",
"",
"Delta Item 86",
"672.0"
],
[
"461.0",
"",
"Upsilon Data 11",
"Completed",
"Urgent",
"false",
"null",
"2026/03/03 11:30",
"",
"",
"Sigma Data 36",
""
],
[
"517.0",
"",
"Upsilon Value 90",
"Cancelled",
"Archive",
"true",
"true",
"2026/03/04 11:30",
"",
"",
"",
""
],
[
"969.0",
"",
"Sigma Data 36",
"In Progress",
"Important, Archive, Urgent",
"true",
"true",
"2026/03/05 11:30",
"",
"",
"",
"461.0"
],
[
"911.0",
"",
"Nu Value 53",
"In Progress",
"Important, Urgent",
"true",
"true",
"2026/03/06 11:30",
"",
"",
"",
""
]
]
]