dataset.import read only commas between cells and refused a file whose
first header cell wasn't `name`. A value that didn't match its
variable's kind, and a repeated data set name, were reported with the
row's record number, which is not the file line after a blank line or a
quoted line break. A data set name over 255 characters gave no line.
- When the header row, read with tabs between cells, has a tab and no
comma outside quotes, tabs separate the cells. A quoted cell may then
hold tabs and commas.
- Without a `name` column every header cell is a variable, and the rows
take the first free names Data Set 1, Data Set 2 and so on, as Capture
Data Set and blank name cells do. A first header cell `name`, in any
case, still holds the data set names.
- Value errors, a repeated data set name and a name over 255 characters
give the file line the row starts on.
- The Variables panel's Import Data Sets… dialog also lists .tsv files.
- import_fuzz.rs imports random text, random bytes and mutated exports,
comma- and tab-separated, into a document with bound text, visibility
and graph variables, selects up to three of the imported data sets in
turn, and exports every data set.
Docs: docs/mcp.md, docs/target-app-parity.md.