[tablify] / src / lib.rs

use std::collections::{HashMap, HashSet};
use std::fmt::Write;
use std::io::BufRead;
use std::iter::Iterator;

const HEADER: &str = "<!DOCTYPE html>
<html>
<head>
  <meta charset=\"utf-8\">
  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">
  <style>
    /* h/t https://wabain.github.io/2019/10/13/css-rotated-table-header.html */
    th, td { white-space: nowrap; }
    th { text-align: left; font-weight: normal; }
    table { border-collapse: collapse }
    tr.key > th { height: 8em; vertical-align: bottom; line-height: 1 }
    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.numeric { text-align: right; }
    td.yes { border: thin solid gray; background-color: #ddd; }
    td.spacer { border: none; }
    /* 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; }
    img { height: 1.2em; }
  </style>
  <script>
    function highlight(id)       { const e = document.getElementById(id); if (e) { e.classList.add(   \"highlight\"); } }
    function clear_highlight(id) { const e = document.getElementById(id); if (e) { e.classList.remove(\"highlight\"); } }
    function h2(a, b)  {       highlight(a);       highlight(b); }
    function ch2(a, b) { clear_highlight(a); clear_highlight(b); }
  </script>
</head>
<body>
  <table>
    <tbody>
";
const FOOTER: &str = "    </tbody>
  </table>
</body>
</html>";

#[derive(Debug, PartialEq, Eq, Hash)]
struct Entry {
    col: String,
    instance: Option<String>,
}
impl From<&str> for Entry {
    fn from(value: &str) -> Entry {
        match value.split_once(':') {
            None => Entry {
                col: String::from(value),
                instance: None,
            },
            Some((col, instance)) => Entry {
                col: String::from(col.trim()),
                instance: Some(String::from(instance.trim())),
            },
        }
    }
}

#[derive(Debug, PartialEq, Eq)]
struct RowInput {
    label: String,
    entries: Vec<Entry>,
}

struct Reader<Input: Iterator<Item = Result<String, std::io::Error>>> {
    input: std::iter::Enumerate<Input>,
    row: Option<RowInput>,
}
impl<Input: Iterator<Item = Result<String, std::io::Error>>> Reader<Input> {
    fn new(input: Input) -> Self {
        Self {
            input: input.enumerate(),
            row: None,
        }
    }
}
impl<Input: Iterator<Item = Result<String, std::io::Error>>> Iterator for Reader<Input> {
    type Item = Result<RowInput, std::io::Error>;
    fn next(&mut self) -> Option<Self::Item> {
        loop {
            match self
                .input
                .next()
                .map(|(n, r)| (n, r.map(|line| String::from(line.trim_end()))))
            {
                None => return Ok(std::mem::take(&mut self.row)).transpose(),
                Some((_, Err(e))) => return Some(Err(e)),
                Some((_, Ok(line))) if line.is_empty() && self.row.is_some() => {
                    return Ok(std::mem::take(&mut self.row)).transpose()
                }
                Some((_, Ok(line))) if line.is_empty() => {}
                Some((n, Ok(line))) if line.starts_with(' ') => match &mut self.row {
                    None => {
                        return Some(Err(std::io::Error::other(format!(
                            "{}: Entry with no header",
                            n + 1
                        ))))
                    }
                    Some(ref mut row) => row.entries.push(Entry::from(line.trim())),
                },
                Some((_, Ok(line))) => {
                    let prev = std::mem::take(&mut self.row);
                    self.row = Some(RowInput {
                        label: line,
                        entries: vec![],
                    });
                    if prev.is_some() {
                        return Ok(prev).transpose();
                    }
                }
            }
        }
    }
}

fn read_rows(input: impl std::io::Read) -> impl Iterator<Item = Result<RowInput, std::io::Error>> {
    Reader::new(std::io::BufReader::new(input).lines())
}

fn column_counts(rows: &[RowInput]) -> Vec<(usize, String)> {
    let mut counts: Vec<_> = rows
        .iter()
        .flat_map(|r| {
            r.entries
                .iter()
                .map(|e| &e.col)
                .collect::<HashSet<_>>()
                .into_iter()
        })
        .fold(HashMap::new(), |mut cs, col| {
            cs.entry(String::from(col))
                .and_modify(|n| *n += 1)
                .or_insert(1);
            cs
        })
        .into_iter()
        .map(|(col, n)| (n, col))
        .collect();
    counts.sort();
    counts
}
fn column_order(rows: &[RowInput]) -> Vec<String> {
    column_counts(rows)
        .into_iter()
        .map(|(_, col)| col)
        .collect()
}

fn render_instance(entry: &Entry) -> String {
    match &entry.instance {
        None => String::from("✓ "),
        Some(instance) => String::from(instance) + " ",
    }
}

fn render_cell(col: &str, row: &RowInput) -> String {
    // TODO: Escape HTML special characters
    let row_label = &row.label;
    let entries: Vec<&Entry> = row.entries.iter().filter(|e| e.col == col).collect();
    let class = if entries.is_empty() { "" } else { "yes" };
    let all_empty = entries.iter().all(|e| e.instance.is_none());
    let contents = if entries.is_empty() || (all_empty && entries.len() == 1) {
        String::new()
    } else if all_empty {
        format!("{}", entries.len())
    } else {
        entries
            .iter()
            .map(|i| render_instance(i))
            .collect::<String>()
    };
    format!("<td class=\"{class}\" onmouseover=\"h2('{row_label}','{col}')\" onmouseout=\"ch2('{row_label}','{col}')\">{}</td>", contents.trim())
}

fn render_row(columns: &[String], row: &RowInput) -> String {
    // This is O(n^2) & doesn't need to be
    // TODO: Escape HTML special characters
    let row_label = &row.label;
    format!(
        "<tr><th id=\"{row_label}\">{row_label}</th>{}</tr>\n",
        &columns
            .iter()
            .map(|col| render_cell(col, row))
            .collect::<String>()
    )
}

fn render_column_headers(columns: &[String]) -> String {
    // TODO: Escape HTML special characters
    String::from("<tr class=\"key\"><th></th>")
        + &columns.iter().fold(String::new(), |mut acc, c| {
            write!(&mut acc, "<th id=\"{c}\"><div><div>{c}</div></div></th>").unwrap();
            acc
        })
        + "</tr>\n"
}

/// # Errors
///
/// Will return `Err` if
///   * there's an i/o error while reading `input`
///   * the log has invalid syntax:
///     * an indented line with no preceding non-indented line
pub fn tablify(input: impl std::io::Read) -> Result<String, std::io::Error> {
    let rows = read_rows(input).collect::<Result<Vec<_>, _>>()?;
    let columns = column_order(&rows);
    Ok(String::from(HEADER)
        + &render_column_headers(&columns)
        + &rows
            .into_iter()
            .map(|r| render_row(&columns, &r))
            .collect::<String>()
        + FOOTER)
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_parse_entry() {
        assert_eq!(
            Entry::from("foo"),
            Entry {
                col: String::from("foo"),
                instance: None
            }
        );
        assert_eq!(
            Entry::from("foo:bar"),
            Entry {
                col: String::from("foo"),
                instance: Some(String::from("bar"))
            }
        );
        assert_eq!(
            Entry::from("foo: bar"),
            Entry {
                col: String::from("foo"),
                instance: Some(String::from("bar"))
            }
        );
    }

    #[test]
    fn test_read_rows() {
        assert_eq!(
            read_rows(&b"foo"[..]).flatten().collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("foo"),
                entries: vec![]
            }]
        );
        assert_eq!(
            read_rows(&b"bar"[..]).flatten().collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("bar"),
                entries: vec![]
            }]
        );
        assert_eq!(
            read_rows(&b"foo\nbar\n"[..]).flatten().collect::<Vec<_>>(),
            vec![
                RowInput {
                    label: String::from("foo"),
                    entries: vec![]
                },
                RowInput {
                    label: String::from("bar"),
                    entries: vec![]
                }
            ]
        );
        assert_eq!(
            read_rows(&b"foo\n bar\n"[..]).flatten().collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("foo"),
                entries: vec![Entry::from("bar")]
            }]
        );
        assert_eq!(
            read_rows(&b"foo\n bar\n baz\n"[..])
                .flatten()
                .collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("foo"),
                entries: vec![Entry::from("bar"), Entry::from("baz")]
            }]
        );
        assert_eq!(
            read_rows(&b"foo\n\nbar\n"[..])
                .flatten()
                .collect::<Vec<_>>(),
            vec![
                RowInput {
                    label: String::from("foo"),
                    entries: vec![]
                },
                RowInput {
                    label: String::from("bar"),
                    entries: vec![]
                }
            ]
        );
        assert_eq!(
            read_rows(&b"foo\n \nbar\n"[..])
                .flatten()
                .collect::<Vec<_>>(),
            vec![
                RowInput {
                    label: String::from("foo"),
                    entries: vec![]
                },
                RowInput {
                    label: String::from("bar"),
                    entries: vec![]
                }
            ]
        );
        assert_eq!(
            read_rows(&b"foo  \n bar  \n"[..])
                .flatten()
                .collect::<Vec<_>>(),
            vec![RowInput {
                label: String::from("foo"),
                entries: vec![Entry::from("bar")]
            }]
        );

        let bad = read_rows(&b" foo"[..]).next().unwrap();
        assert!(bad.is_err());
        assert!(format!("{bad:?}").contains("1: Entry with no header"));

        let bad2 = read_rows(&b"foo\n\n bar"[..]).nth(1).unwrap();
        assert!(bad2.is_err());
        assert!(format!("{bad2:?}").contains("3: Entry with no header"));
    }

    #[test]
    fn test_column_counts() {
        assert_eq!(
            column_counts(
                &read_rows(&b"foo\n bar\n baz\n"[..])
                    .collect::<Result<Vec<_>, _>>()
                    .unwrap()
            ),
            vec![(1, String::from("bar")), (1, String::from("baz"))]
        );
        assert_eq!(
            column_counts(
                &read_rows(&b"foo\n bar\n baz\nquux\n baz"[..])
                    .collect::<Result<Vec<_>, _>>()
                    .unwrap()
            ),
            vec![(1, String::from("bar")), (2, String::from("baz"))]
        );
        assert_eq!(
            column_counts(
                &read_rows(&b"foo\n bar\n bar\n baz\n bar\nquux\n baz"[..])
                    .collect::<Result<Vec<_>, _>>()
                    .unwrap()
            ),
            vec![(1, String::from("bar")), (2, String::from("baz"))]
        );
        assert_eq!(
            column_counts(
                &read_rows(&b"foo\n bar: 1\n bar: 2\n baz\n bar\nquux\n baz"[..])
                    .collect::<Result<Vec<_>, _>>()
                    .unwrap()
            ),
            vec![(1, String::from("bar")), (2, String::from("baz"))]
        );
    }

    #[test]
    fn test_render_cell() {
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![]
                }
            ),
            String::from("<td class=\"\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
        );
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![Entry::from("bar")]
                }
            ),
            String::from("<td class=\"\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
        );
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![Entry::from("foo")]
                }
            ),
            String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
        );
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![Entry::from("foo"), Entry::from("foo")]
                }
            ),
            String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">2</td>")
        );
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![Entry::from("foo: 5"), Entry::from("foo: 10")]
                }
            ),
            String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">5 10</td>")
        );
        assert_eq!(
            render_cell(
                "foo",
                &RowInput {
                    label: String::from("nope"),
                    entries: vec![Entry::from("foo: 5"), Entry::from("foo")]
                }
            ),
            String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">5 ✓</td>")
        );
    }
}
Commit	Line	Data
397ef957	1	use std::collections::{HashMap, HashSet};
7067975b	2	use std::fmt::Write;
9dfa98b7	3	use std::io::BufRead;
75bb888a SW	4	use std::iter::Iterator;
75bb888a SW	5
cc2378d5 SW	6	const HEADER: &str = "<!DOCTYPE html>
	7	<html>
	8	<head>
	9	<meta charset=\"utf-8\">
	10	<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">
	11	<style>
	12	/* h/t https://wabain.github.io/2019/10/13/css-rotated-table-header.html */
	13	th, td { white-space: nowrap; }
	14	th { text-align: left; font-weight: normal; }
	15	table { border-collapse: collapse }
	16	tr.key > th { height: 8em; vertical-align: bottom; line-height: 1 }
	17	tr.key > th > div { width: 1em; }
	18	tr.key > th > div > div { width: 5em; transform-origin: bottom left; transform: translateX(1em) rotate(-65deg) }
	19	td { border: thin solid gray; }
	20	td.numeric { text-align: right; }
1dda21e6	21	td.yes { border: thin solid gray; background-color: #ddd; }
cc2378d5 SW	22	td.spacer { border: none; }
	23	/* h/t https://stackoverflow.com/questions/5687035/css-bolding-some-text-without-changing-its-containers-size/46452396#46452396 */
	24	.highlight { text-shadow: -0.06ex 0 black, 0.06ex 0 black; }
	25	img { height: 1.2em; }
	26	</style>
	27	<script>
	28	function highlight(id) { const e = document.getElementById(id); if (e) { e.classList.add( \"highlight\"); } }
	29	function clear_highlight(id) { const e = document.getElementById(id); if (e) { e.classList.remove(\"highlight\"); } }
	30	function h2(a, b) { highlight(a); highlight(b); }
	31	function ch2(a, b) { clear_highlight(a); clear_highlight(b); }
	32	</script>
	33	</head>
	34	<body>
	35	<table>
76638ea1 SW	36	<tbody>
76638ea1 SW	37	";
cc2378d5 SW	38	const FOOTER: &str = " </tbody>
	39	</table>
	40	</body>
	41	</html>";
	42
14e9852b	43	#[derive(Debug, PartialEq, Eq, Hash)]
e8657dff SW	44	struct Entry {
e8657dff SW	45	col: String,
b8907770	46	instance: Option<String>,
e8657dff SW	47	}
	48	impl From<&str> for Entry {
	49	fn from(value: &str) -> Entry {
b8907770 SW	50	match value.split_once(':') {
	51	None => Entry {
	52	col: String::from(value),
	53	instance: None,
	54	},
	55	Some((col, instance)) => Entry {
0d999bc3 SW	56	col: String::from(col.trim()),
0d999bc3 SW	57	instance: Some(String::from(instance.trim())),
b8907770	58	},
e8657dff SW	59	}
	60	}
	61	}
14e9852b	62
75bb888a SW	63	#[derive(Debug, PartialEq, Eq)]
	64	struct RowInput {
	65	label: String,
14e9852b	66	entries: Vec<Entry>,
75bb888a SW	67	}
75bb888a SW	68
201b9ef3	69	struct Reader<Input: Iterator<Item = Result<String, std::io::Error>>> {
8110b492	70	input: std::iter::Enumerate<Input>,
201b9ef3 SW	71	row: Option<RowInput>,
	72	}
	73	impl<Input: Iterator<Item = Result<String, std::io::Error>>> Reader<Input> {
201b9ef3	74	fn new(input: Input) -> Self {
8110b492 SW	75	Self {
	76	input: input.enumerate(),
	77	row: None,
	78	}
201b9ef3 SW	79	}
	80	}
	81	impl<Input: Iterator<Item = Result<String, std::io::Error>>> Iterator for Reader<Input> {
	82	type Item = Result<RowInput, std::io::Error>;
	83	fn next(&mut self) -> Option<Self::Item> {
	84	loop {
1f6bd845 SW	85	match self
	86	.input
	87	.next()
8110b492	88	.map(\|(n, r)\| (n, r.map(\|line\| String::from(line.trim_end()))))
1f6bd845	89	{
201b9ef3	90	None => return Ok(std::mem::take(&mut self.row)).transpose(),
8110b492 SW	91	Some((_, Err(e))) => return Some(Err(e)),
8110b492 SW	92	Some((_, Ok(line))) if line.is_empty() && self.row.is_some() => {
201b9ef3 SW	93	return Ok(std::mem::take(&mut self.row)).transpose()
201b9ef3 SW	94	}
8110b492 SW	95	Some((_, Ok(line))) if line.is_empty() => {}
	96	Some((n, Ok(line))) if line.starts_with(' ') => match &mut self.row {
	97	None => {
	98	return Some(Err(std::io::Error::other(format!(
	99	"{}: Entry with no header",
	100	n + 1
	101	))))
	102	}
e8657dff	103	Some(ref mut row) => row.entries.push(Entry::from(line.trim())),
201b9ef3	104	},
8110b492	105	Some((_, Ok(line))) => {
201b9ef3 SW	106	let prev = std::mem::take(&mut self.row);
	107	self.row = Some(RowInput {
	108	label: line,
	109	entries: vec![],
	110	});
	111	if prev.is_some() {
	112	return Ok(prev).transpose();
	113	}
	114	}
	115	}
	116	}
	117	}
	118	}
	119
201b9ef3 SW	120	fn read_rows(input: impl std::io::Read) -> impl Iterator<Item = Result<RowInput, std::io::Error>> {
201b9ef3 SW	121	Reader::new(std::io::BufReader::new(input).lines())
75bb888a SW	122	}
75bb888a SW	123
58b5f36d SW	124	fn column_counts(rows: &[RowInput]) -> Vec<(usize, String)> {
	125	let mut counts: Vec<_> = rows
	126	.iter()
b8907770 SW	127	.flat_map(\|r\| {
	128	r.entries
	129	.iter()
	130	.map(\|e\| &e.col)
	131	.collect::<HashSet<_>>()
	132	.into_iter()
	133	})
	134	.fold(HashMap::new(), \|mut cs, col\| {
	135	cs.entry(String::from(col))
58b5f36d	136	.and_modify(\|n\| *n += 1)
f272e502	137	.or_insert(1);
58b5f36d	138	cs
f272e502	139	})
58b5f36d SW	140	.into_iter()
	141	.map(\|(col, n)\| (n, col))
	142	.collect();
	143	counts.sort();
	144	counts
f272e502	145	}
d22b2e05 SW	146	fn column_order(rows: &[RowInput]) -> Vec<String> {
	147	column_counts(rows)
	148	.into_iter()
	149	.map(\|(_, col)\| col)
	150	.collect()
	151	}
f272e502	152
de408c29 SW	153	fn render_instance(entry: &Entry) -> String {
	154	match &entry.instance {
	155	None => String::from("✓ "),
	156	Some(instance) => String::from(instance) + " ",
	157	}
	158	}
	159
	160	fn render_cell(col: &str, row: &RowInput) -> String {
	161	// TODO: Escape HTML special characters
92476edc	162	let row_label = &row.label;
de408c29 SW	163	let entries: Vec<&Entry> = row.entries.iter().filter(\|e\| e.col == col).collect();
	164	let class = if entries.is_empty() { "" } else { "yes" };
	165	let all_empty = entries.iter().all(\|e\| e.instance.is_none());
	166	let contents = if entries.is_empty() \|\| (all_empty && entries.len() == 1) {
	167	String::new()
	168	} else if all_empty {
	169	format!("{}", entries.len())
	170	} else {
	171	entries
	172	.iter()
	173	.map(\|i\| render_instance(i))
	174	.collect::<String>()
	175	};
92476edc	176	format!("<td class=\"{class}\" onmouseover=\"h2('{row_label}','{col}')\" onmouseout=\"ch2('{row_label}','{col}')\">{}</td>", contents.trim())
de408c29 SW	177	}
	178
	179	fn render_row(columns: &[String], row: &RowInput) -> String {
	180	// This is O(n^2) & doesn't need to be
	181	// TODO: Escape HTML special characters
92476edc	182	let row_label = &row.label;
de408c29	183	format!(
92476edc	184	"<tr><th id=\"{row_label}\">{row_label}</th>{}</tr>\n",
de408c29 SW	185	&columns
	186	.iter()
	187	.map(\|col\| render_cell(col, row))
	188	.collect::<String>()
	189	)
	190	}
	191
76638ea1 SW	192	fn render_column_headers(columns: &[String]) -> String {
76638ea1 SW	193	// TODO: Escape HTML special characters
92476edc	194	String::from("<tr class=\"key\"><th></th>")
7067975b	195	+ &columns.iter().fold(String::new(), \|mut acc, c\| {
92476edc	196	write!(&mut acc, "<th id=\"{c}\"><div><div>{c}</div></div></th>").unwrap();
7067975b SW	197	acc
7067975b SW	198	})
92476edc	199	+ "</tr>\n"
76638ea1 SW	200	}
76638ea1 SW	201
4b99fb70 SW	202	/// # Errors
	203	///
	204	/// Will return `Err` if
	205	/// * there's an i/o error while reading `input`
	206	/// * the log has invalid syntax:
	207	/// * an indented line with no preceding non-indented line
	208	pub fn tablify(input: impl std::io::Read) -> Result<String, std::io::Error> {
	209	let rows = read_rows(input).collect::<Result<Vec<_>, _>>()?;
de408c29 SW	210	let columns = column_order(&rows);
de408c29 SW	211	Ok(String::from(HEADER)
76638ea1	212	+ &render_column_headers(&columns)
de408c29 SW	213	+ &rows
	214	.into_iter()
	215	.map(\|r\| render_row(&columns, &r))
	216	.collect::<String>()
	217	+ FOOTER)
ece97615	218	}
75bb888a SW	219
	220	#[cfg(test)]
	221	mod tests {
	222	use super::*;
	223
b8907770 SW	224	#[test]
	225	fn test_parse_entry() {
	226	assert_eq!(
	227	Entry::from("foo"),
	228	Entry {
	229	col: String::from("foo"),
	230	instance: None
	231	}
	232	);
	233	assert_eq!(
	234	Entry::from("foo:bar"),
	235	Entry {
	236	col: String::from("foo"),
	237	instance: Some(String::from("bar"))
	238	}
	239	);
0d999bc3 SW	240	assert_eq!(
	241	Entry::from("foo: bar"),
	242	Entry {
	243	col: String::from("foo"),
	244	instance: Some(String::from("bar"))
	245	}
	246	);
b8907770 SW	247	}
b8907770 SW	248
75bb888a SW	249	#[test]
	250	fn test_read_rows() {
	251	assert_eq!(
201b9ef3	252	read_rows(&b"foo"[..]).flatten().collect::<Vec<_>>(),
75bb888a SW	253	vec![RowInput {
	254	label: String::from("foo"),
	255	entries: vec![]
	256	}]
	257	);
9dfa98b7	258	assert_eq!(
201b9ef3	259	read_rows(&b"bar"[..]).flatten().collect::<Vec<_>>(),
9dfa98b7 SW	260	vec![RowInput {
	261	label: String::from("bar"),
	262	entries: vec![]
	263	}]
	264	);
2aa9ef94	265	assert_eq!(
201b9ef3	266	read_rows(&b"foo\nbar\n"[..]).flatten().collect::<Vec<_>>(),
2aa9ef94 SW	267	vec![
	268	RowInput {
	269	label: String::from("foo"),
	270	entries: vec![]
	271	},
	272	RowInput {
	273	label: String::from("bar"),
	274	entries: vec![]
	275	}
	276	]
	277	);
201b9ef3 SW	278	assert_eq!(
	279	read_rows(&b"foo\n bar\n"[..]).flatten().collect::<Vec<_>>(),
	280	vec![RowInput {
	281	label: String::from("foo"),
e8657dff	282	entries: vec![Entry::from("bar")]
201b9ef3 SW	283	}]
	284	);
	285	assert_eq!(
	286	read_rows(&b"foo\n bar\n baz\n"[..])
	287	.flatten()
	288	.collect::<Vec<_>>(),
	289	vec![RowInput {
	290	label: String::from("foo"),
e8657dff	291	entries: vec![Entry::from("bar"), Entry::from("baz")]
201b9ef3 SW	292	}]
	293	);
	294	assert_eq!(
	295	read_rows(&b"foo\n\nbar\n"[..])
	296	.flatten()
	297	.collect::<Vec<_>>(),
	298	vec![
	299	RowInput {
	300	label: String::from("foo"),
	301	entries: vec![]
	302	},
	303	RowInput {
	304	label: String::from("bar"),
	305	entries: vec![]
	306	}
	307	]
	308	);
1f6bd845 SW	309	assert_eq!(
	310	read_rows(&b"foo\n \nbar\n"[..])
	311	.flatten()
	312	.collect::<Vec<_>>(),
	313	vec![
	314	RowInput {
	315	label: String::from("foo"),
	316	entries: vec![]
	317	},
	318	RowInput {
	319	label: String::from("bar"),
	320	entries: vec![]
	321	}
	322	]
	323	);
	324	assert_eq!(
	325	read_rows(&b"foo \n bar \n"[..])
	326	.flatten()
	327	.collect::<Vec<_>>(),
	328	vec![RowInput {
	329	label: String::from("foo"),
e8657dff	330	entries: vec![Entry::from("bar")]
1f6bd845 SW	331	}]
1f6bd845 SW	332	);
201b9ef3 SW	333
	334	let bad = read_rows(&b" foo"[..]).next().unwrap();
	335	assert!(bad.is_err());
8110b492	336	assert!(format!("{bad:?}").contains("1: Entry with no header"));
201b9ef3 SW	337
	338	let bad2 = read_rows(&b"foo\n\n bar"[..]).nth(1).unwrap();
	339	assert!(bad2.is_err());
8110b492	340	assert!(format!("{bad2:?}").contains("3: Entry with no header"));
75bb888a	341	}
f272e502 SW	342
	343	#[test]
	344	fn test_column_counts() {
	345	assert_eq!(
	346	column_counts(
	347	&read_rows(&b"foo\n bar\n baz\n"[..])
	348	.collect::<Result<Vec<_>, _>>()
	349	.unwrap()
	350	),
58b5f36d	351	vec![(1, String::from("bar")), (1, String::from("baz"))]
f272e502 SW	352	);
	353	assert_eq!(
	354	column_counts(
	355	&read_rows(&b"foo\n bar\n baz\nquux\n baz"[..])
	356	.collect::<Result<Vec<_>, _>>()
	357	.unwrap()
	358	),
58b5f36d	359	vec![(1, String::from("bar")), (2, String::from("baz"))]
f272e502	360	);
397ef957 SW	361	assert_eq!(
	362	column_counts(
	363	&read_rows(&b"foo\n bar\n bar\n baz\n bar\nquux\n baz"[..])
	364	.collect::<Result<Vec<_>, _>>()
	365	.unwrap()
	366	),
58b5f36d	367	vec![(1, String::from("bar")), (2, String::from("baz"))]
397ef957	368	);
b8907770 SW	369	assert_eq!(
	370	column_counts(
	371	&read_rows(&b"foo\n bar: 1\n bar: 2\n baz\n bar\nquux\n baz"[..])
	372	.collect::<Result<Vec<_>, _>>()
	373	.unwrap()
	374	),
	375	vec![(1, String::from("bar")), (2, String::from("baz"))]
	376	);
f272e502	377	}
de408c29 SW	378
	379	#[test]
	380	fn test_render_cell() {
	381	assert_eq!(
	382	render_cell(
	383	"foo",
	384	&RowInput {
	385	label: String::from("nope"),
	386	entries: vec![]
	387	}
	388	),
92476edc	389	String::from("<td class=\"\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
de408c29 SW	390	);
	391	assert_eq!(
	392	render_cell(
	393	"foo",
	394	&RowInput {
	395	label: String::from("nope"),
	396	entries: vec![Entry::from("bar")]
	397	}
	398	),
92476edc	399	String::from("<td class=\"\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
de408c29 SW	400	);
	401	assert_eq!(
	402	render_cell(
	403	"foo",
	404	&RowInput {
	405	label: String::from("nope"),
	406	entries: vec![Entry::from("foo")]
	407	}
	408	),
92476edc	409	String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\"></td>")
de408c29 SW	410	);
	411	assert_eq!(
	412	render_cell(
	413	"foo",
	414	&RowInput {
	415	label: String::from("nope"),
	416	entries: vec![Entry::from("foo"), Entry::from("foo")]
	417	}
	418	),
92476edc	419	String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">2</td>")
de408c29 SW	420	);
	421	assert_eq!(
	422	render_cell(
	423	"foo",
	424	&RowInput {
	425	label: String::from("nope"),
	426	entries: vec![Entry::from("foo: 5"), Entry::from("foo: 10")]
	427	}
	428	),
92476edc	429	String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">5 10</td>")
de408c29 SW	430	);
	431	assert_eq!(
	432	render_cell(
	433	"foo",
	434	&RowInput {
	435	label: String::from("nope"),
	436	entries: vec![Entry::from("foo: 5"), Entry::from("foo")]
	437	}
	438	),
92476edc	439	String::from("<td class=\"yes\" onmouseover=\"h2('nope','foo')\" onmouseout=\"ch2('nope','foo')\">5 ✓</td>")
de408c29 SW	440	);
de408c29 SW	441	}
75bb888a	442	}