X-Git-Url: http://git.scottworley.com/tablify/blobdiff_plain/31af9aac0a32a20cf4111a64af65871b188bcd72..14a039db4c850c41ca1cd72c692afe59d6d1347b:/src/lib.rs?ds=sidebyside diff --git a/src/lib.rs b/src/lib.rs index a7c2819..744dc66 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -23,6 +23,7 @@ const HEADER: &str = r#" tr.key > th > div { width: 1em; } tr.key > th > div > div { width: 5em; transform-origin: bottom left; transform: translateX(1em) rotate(-65deg) } td { border: thin solid gray; } + td.leftover { text-align: left; border: none; padding-left: .4em; } td.yes { border: thin solid gray; background-color: #ddd; } /* h/t https://stackoverflow.com/questions/5687035/css-bolding-some-text-without-changing-its-containers-size/46452396#46452396 */ .highlight { text-shadow: -0.06ex 0 black, 0.06ex 0 black; } @@ -108,6 +109,12 @@ struct Row { entries: HashMap>>, } +#[derive(Debug, PartialEq, Eq)] +enum Rowlike { + Row(Row), + Spacer, +} + struct Reader>> { input: std::iter::Enumerate, row: Option, @@ -121,17 +128,17 @@ impl>> Reader { } } impl>> Iterator for Reader { - type Item = Result; + type Item = Result; fn next(&mut self) -> Option { loop { match self.input.next() { - None => return Ok(std::mem::take(&mut self.row)).transpose(), + None => return Ok(std::mem::take(&mut self.row).map(Rowlike::Row)).transpose(), Some((_, Err(e))) => return Some(Err(e)), Some((n, Ok(line))) => match InputLine::from(line.as_ref()) { InputLine::Blank if self.row.is_some() => { - return Ok(std::mem::take(&mut self.row)).transpose() + return Ok(std::mem::take(&mut self.row).map(Rowlike::Row)).transpose() } - InputLine::Blank => {} + InputLine::Blank => return Some(Ok(Rowlike::Spacer)), InputLine::Entry(col, instance) => match &mut self.row { None => { return Some(Err(std::io::Error::other(format!( @@ -153,7 +160,7 @@ impl>> Iterator for Reader entries: HashMap::new(), }); if prev.is_some() { - return Ok(prev).transpose(); + return Ok(prev.map(Rowlike::Row)).transpose(); } } }, @@ -162,14 +169,18 @@ impl>> Iterator for Reader } } -fn read_rows(input: impl std::io::Read) -> impl Iterator> { +fn read_rows(input: impl std::io::Read) -> impl Iterator> { Reader::new(std::io::BufReader::new(input).lines()) } -fn column_counts(rows: &[Row]) -> Vec<(usize, String)> { +fn column_counts(rows: &[Rowlike]) -> Vec<(usize, String)> { + let empty = HashMap::new(); let mut counts: Vec<_> = rows .iter() - .flat_map(|r| r.entries.keys()) + .flat_map(|rl| match rl { + Rowlike::Row(r) => r.entries.keys(), + Rowlike::Spacer => empty.keys(), + }) .fold(HashMap::new(), |mut cs, col| { cs.entry(col.to_owned()) .and_modify(|n| *n += 1) @@ -182,7 +193,7 @@ fn column_counts(rows: &[Row]) -> Vec<(usize, String)> { counts.sort_unstable_by(|(an, acol), (bn, bcol)| bn.cmp(an).then(acol.cmp(bcol))); counts } -fn column_order(config: &Config, rows: &[Row]) -> Vec { +fn column_order(config: &Config, rows: &[Rowlike]) -> Vec { column_counts(rows) .into_iter() .filter_map(|(n, col)| (n >= config.column_threshold).then_some(col)) @@ -252,16 +263,21 @@ fn render_all_leftovers(row: &Row) -> HTML { ) } -fn render_row(columns: &[String], row: &mut Row) -> HTML { - let row_label = HTML::escape(row.label.as_ref()); - let cells = columns - .iter() - .map(|col| render_cell(col, row)) - .collect::(); - let leftovers = render_all_leftovers(row); - HTML(format!( - "{row_label}{cells}{leftovers}\n" - )) +fn render_row(columns: &[String], rowlike: &mut Rowlike) -> HTML { + match rowlike { + Rowlike::Spacer => HTML::from(" "), + Rowlike::Row(row) => { + let row_label = HTML::escape(row.label.as_ref()); + let cells = columns + .iter() + .map(|col| render_cell(col, row)) + .collect::(); + let leftovers = render_all_leftovers(row); + HTML(format!( + "{row_label}{cells}{leftovers}\n" + )) + } + } } fn render_column_headers(columns: &[String]) -> HTML { @@ -335,63 +351,79 @@ mod tests { fn test_read_rows() { assert_eq!( read_rows(&b"foo"[..]).flatten().collect::>(), - vec![Row { + vec![Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::new(), - }] + })] ); assert_eq!( read_rows(&b"bar"[..]).flatten().collect::>(), - vec![Row { + vec![Rowlike::Row(Row { label: "bar".to_owned(), entries: HashMap::new(), - }] + })] ); assert_eq!( read_rows(&b"foo\nbar\n"[..]).flatten().collect::>(), vec![ - Row { + Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::new(), - }, - Row { + }), + Rowlike::Row(Row { label: "bar".to_owned(), entries: HashMap::new(), - } + }) ] ); assert_eq!( read_rows(&b"foo\n bar\n"[..]).flatten().collect::>(), - vec![Row { + vec![Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::from([("bar".to_owned(), vec![None])]), - }] + })] ); assert_eq!( read_rows(&b"foo\n bar\n baz\n"[..]) .flatten() .collect::>(), - vec![Row { + vec![Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::from([ ("bar".to_owned(), vec![None]), ("baz".to_owned(), vec![None]) ]), - }] + })] ); assert_eq!( read_rows(&b"foo\n\nbar\n"[..]) .flatten() .collect::>(), vec![ - Row { + Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::new(), - }, - Row { + }), + Rowlike::Row(Row { label: "bar".to_owned(), entries: HashMap::new(), - } + }) + ] + ); + assert_eq!( + read_rows(&b"foo\n\n\nbar\n"[..]) + .flatten() + .collect::>(), + vec![ + Rowlike::Row(Row { + label: "foo".to_owned(), + entries: HashMap::new(), + }), + Rowlike::Spacer, + Rowlike::Row(Row { + label: "bar".to_owned(), + entries: HashMap::new(), + }) ] ); assert_eq!( @@ -399,24 +431,24 @@ mod tests { .flatten() .collect::>(), vec![ - Row { + Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::new(), - }, - Row { + }), + Rowlike::Row(Row { label: "bar".to_owned(), entries: HashMap::new(), - } + }) ] ); assert_eq!( read_rows(&b"foo \n bar \n"[..]) .flatten() .collect::>(), - vec![Row { + vec![Rowlike::Row(Row { label: "foo".to_owned(), entries: HashMap::from([("bar".to_owned(), vec![None])]), - }] + })] ); let bad = read_rows(&b" foo"[..]).next().unwrap(); @@ -617,13 +649,13 @@ mod tests { assert_eq!( render_row( &["foo".to_owned()], - &mut Row { + &mut Rowlike::Row(Row { label: "nope".to_owned(), entries: HashMap::from([("bar".to_owned(), vec![None])]), - } + }) ), HTML::from( - r#"nopebar + r#"nopebar "# ) );