use std::borrow::ToOwned;
-use std::collections::HashMap;
+use std::collections::{HashMap, HashSet};
use std::fmt::Write;
use std::io::BufRead;
use std::iter::Iterator;
#[derive(PartialEq, Eq, Debug)]
struct Config {
column_threshold: usize,
+ static_columns: Vec<Option<String>>,
}
impl Config {
- fn apply_command(&mut self, cmd: &str) -> Result<(), std::io::Error> {
+ fn apply_command(&mut self, line_num: usize, cmd: &str) -> Result<(), std::io::Error> {
if let Some(threshold) = cmd.strip_prefix("col_threshold ") {
- self.column_threshold = threshold
- .parse()
- .map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidInput, e))?;
+ self.column_threshold = threshold.parse().map_err(|e| {
+ std::io::Error::new(
+ std::io::ErrorKind::InvalidInput,
+ format!("line {line_num}: col_threshold must be numeric: {e}"),
+ )
+ })?;
+ } else if let Some(col) = cmd.strip_prefix("col ") {
+ self.static_columns.push(Some(col.to_owned()));
+ } else if cmd == "colsep" {
+ self.static_columns.push(None);
+ } else {
+ return Err(std::io::Error::new(
+ std::io::ErrorKind::InvalidInput,
+ format!("line {line_num}: Unknown command: {cmd}"),
+ ));
}
Ok(())
}
}
+const DEFAULT_CONFIG: Config = Config {
+ column_threshold: 2,
+ static_columns: vec![],
+};
+
const HEADER: &str = r#"<!DOCTYPE html>
<html>
<head>
th, td { white-space: nowrap; }
th { text-align: left; font-weight: normal; }
th.spacer_row { height: .3em; }
+ .spacer_col { border: none; width: .2em; }
table { border-collapse: collapse }
tr.key > th { height: 10em; vertical-align: bottom; line-height: 1 }
tr.key > th > div { width: 1em; }
Some((_, Err(e))) => return Some(Err(e)),
Some((n, Ok(line))) => match InputLine::from(line.as_ref()) {
InputLine::Command(cmd) => {
- if let Err(e) = self.config.apply_command(cmd) {
+ if let Err(e) = self.config.apply_command(n + 1, cmd) {
return Some(Err(e));
}
}
InputLine::Entry(col, instance) => match &mut self.row {
None => {
return Some(Err(std::io::Error::other(format!(
- "{}: Entry with no header",
+ "line {}: Entry with no header",
n + 1
))))
}
}
fn read_input(input: impl std::io::Read) -> Result<(Vec<Rowlike>, Config), std::io::Error> {
- let mut config = Config {
- column_threshold: 2,
- };
+ let mut config = DEFAULT_CONFIG;
let reader = Reader::new(&mut config, std::io::BufReader::new(input).lines());
reader
.collect::<Result<Vec<_>, _>>()
counts
}
fn column_order(config: &Config, rows: &[Rowlike]) -> Vec<String> {
+ let static_columns: HashSet<&str> = config
+ .static_columns
+ .iter()
+ .flatten()
+ .map(std::string::String::as_str)
+ .collect();
column_counts(rows)
.into_iter()
- .filter_map(|(n, col)| (n >= config.column_threshold).then_some(col))
+ .filter_map(|(n, col)| {
+ (n >= config.column_threshold && !static_columns.contains(col.as_str())).then_some(col)
+ })
.collect()
}
)
}
-fn render_row(columns: &[String], rowlike: &mut Rowlike) -> HTML {
+fn render_row(config: &Config, columns: &[String], rowlike: &mut Rowlike) -> HTML {
match rowlike {
Rowlike::Spacer => HTML::from("<tr><th class=\"spacer_row\"></th></tr>\n"),
Rowlike::Row(row) => {
let row_label = HTML::escape(row.label.as_ref());
- let cells = columns
+ let static_cells = config
+ .static_columns
+ .iter()
+ .map(|ocol| match ocol {
+ Some(col) => render_cell(col, row),
+ None => HTML::from(r#"<td class="spacer_col"></td>"#),
+ })
+ .collect::<HTML>();
+ let dynamic_cells = columns
.iter()
.map(|col| render_cell(col, row))
.collect::<HTML>();
let leftovers = render_all_leftovers(row);
HTML(format!(
- "<tr><th id=\"{row_label}\">{row_label}</th>{cells}<td class=\"leftover\" onmouseover=\"highlight('{row_label}')\" onmouseout=\"clear_highlight('{row_label}')\">{leftovers}</td></tr>\n"
+ "<tr><th id=\"{row_label}\">{row_label}</th>{static_cells}{dynamic_cells}<td class=\"leftover\" onmouseover=\"highlight('{row_label}')\" onmouseout=\"clear_highlight('{row_label}')\">{leftovers}</td></tr>\n"
))
}
}
}
-fn render_column_headers(columns: &[String]) -> HTML {
+fn render_column_headers(config: &Config, columns: &[String]) -> HTML {
+ let static_columns = config.static_columns.iter().map(|oc| oc.as_ref());
+ let dynamic_columns = columns.iter().map(Some);
HTML(
String::from(r#"<tr class="key"><th></th>"#)
- + &columns.iter().fold(String::new(), |mut acc, col| {
- let col_header = HTML::escape(col.as_ref());
- write!(
- &mut acc,
- r#"<th id="{col_header}"><div><div>{col_header}</div></div></th>"#
- )
- .unwrap();
- acc
- })
+ + &static_columns
+ .chain(dynamic_columns)
+ .fold(String::new(), |mut acc, ocol| {
+ match ocol {
+ Some(col) => {
+ let col_header = HTML::escape(col);
+ write!(
+ &mut acc,
+ r#"<th id="{col_header}"><div><div>{col_header}</div></div></th>"#
+ )
+ }
+ None => write!(&mut acc, r#"<th class="col_spacer"></th>"#),
+ }
+ .unwrap();
+ acc
+ })
+ "</tr>\n",
)
}
let columns = column_order(&config, &rows);
Ok(HTML(format!(
"{HEADER}{}{}{FOOTER}",
- render_column_headers(&columns),
+ render_column_headers(&config, &columns),
rows.into_iter()
- .map(|mut r| render_row(&columns, &mut r))
+ .map(|mut r| render_row(&config, &columns, &mut r))
.collect::<HTML>()
)))
}
let bad = read_rows(&b" foo"[..]);
assert!(bad.is_err());
- assert!(format!("{bad:?}").contains("1: Entry with no header"));
+ assert!(format!("{bad:?}").contains("line 1: Entry with no header"));
let bad2 = read_rows(&b"foo\n\n bar"[..]);
assert!(bad2.is_err());
- assert!(format!("{bad2:?}").contains("3: Entry with no header"));
+ assert!(format!("{bad2:?}").contains("line 3: Entry with no header"));
}
#[test]
fn test_read_config() {
assert_eq!(
- read_config(&b"!col_threshold 10"[..]).unwrap(),
- Config {
- column_threshold: 10
- }
+ read_config(&b"!col_threshold 10"[..])
+ .unwrap()
+ .column_threshold,
+ 10
);
+ assert_eq!(
+ read_config(&b"!col foo"[..]).unwrap().static_columns,
+ vec![Some("foo".to_owned())]
+ );
+
+ let bad_command = read_config(&b"!no such command"[..]);
+ assert!(bad_command.is_err());
+ assert!(format!("{bad_command:?}").contains("line 1: Unknown command"));
let bad_num = read_config(&b"!col_threshold foo"[..]);
assert!(bad_num.is_err());
- assert!(format!("{bad_num:?}").contains("Parse"));
+ assert!(format!("{bad_num:?}").contains("line 1: col_threshold must be numeric"));
}
#[test]
fn test_render_row() {
assert_eq!(
render_row(
+ &DEFAULT_CONFIG,
&["foo".to_owned()],
&mut Rowlike::Row(Row {
label: "nope".to_owned(),
),
HTML::from(
r#"<tr><th id="nope">nope</th><td class="" onmouseover="h2('nope','foo')" onmouseout="ch2('nope','foo')"></td><td class="leftover" onmouseover="highlight('nope')" onmouseout="clear_highlight('nope')">bar</td></tr>
+"#
+ )
+ );
+ assert_eq!(
+ render_row(
+ &Config {
+ column_threshold: 0,
+ static_columns: vec![Some("foo".to_owned()), Some("bar".to_owned())],
+ },
+ &["baz".to_owned()],
+ &mut Rowlike::Row(Row {
+ label: "nope".to_owned(),
+ entries: HashMap::from([
+ ("bar".to_owned(), vec![Some("r".to_owned())]),
+ ("baz".to_owned(), vec![Some("z".to_owned())]),
+ ("foo".to_owned(), vec![Some("f".to_owned())]),
+ ]),
+ })
+ ),
+ HTML::from(
+ r#"<tr><th id="nope">nope</th><td class="yes" onmouseover="h2('nope','foo')" onmouseout="ch2('nope','foo')">f</td><td class="yes" onmouseover="h2('nope','bar')" onmouseout="ch2('nope','bar')">r</td><td class="yes" onmouseover="h2('nope','baz')" onmouseout="ch2('nope','baz')">z</td><td class="leftover" onmouseover="highlight('nope')" onmouseout="clear_highlight('nope')"></td></tr>
+"#
+ )
+ );
+ assert_eq!(
+ render_row(
+ &Config {
+ column_threshold: 0,
+ static_columns: vec![Some("foo".to_owned()), None, Some("bar".to_owned())],
+ },
+ &[],
+ &mut Rowlike::Row(Row {
+ label: "nope".to_owned(),
+ entries: HashMap::from([
+ ("bar".to_owned(), vec![Some("r".to_owned())]),
+ ("foo".to_owned(), vec![Some("f".to_owned())]),
+ ]),
+ })
+ ),
+ HTML::from(
+ r#"<tr><th id="nope">nope</th><td class="yes" onmouseover="h2('nope','foo')" onmouseout="ch2('nope','foo')">f</td><td class="spacer_col"></td><td class="yes" onmouseover="h2('nope','bar')" onmouseout="ch2('nope','bar')">r</td><td class="leftover" onmouseover="highlight('nope')" onmouseout="clear_highlight('nope')"></td></tr>
"#
)
);
projects / tablify / blobdiff