]> git.scottworley.com Git - tablify/blobdiff - src/lib.rs
Rename column_header_order → column_header_labels
[tablify] / src / lib.rs
index 99c454dc5ad83fd1c80acb3362b855f470065426..88c6d8c16f0c082b0d14ba111a90b9aad937b083 100644 (file)
@@ -8,6 +8,7 @@ use std::iter::Iterator;
 struct Config {
     column_threshold: usize,
     static_columns: Vec<Option<String>>,
+    hidden_columns: HashSet<String>,
 }
 impl Config {
     fn apply_command(&mut self, line_num: usize, cmd: &str) -> Result<(), std::io::Error> {
@@ -18,6 +19,8 @@ impl Config {
                     format!("line {line_num}: col_threshold must be numeric: {e}"),
                 )
             })?;
+        } else if let Some(col) = cmd.strip_prefix("hide ") {
+            self.hidden_columns.insert(col.to_owned());
         } else if let Some(col) = cmd.strip_prefix("col ") {
             self.static_columns.push(Some(col.to_owned()));
         } else if cmd == "colsep" {
@@ -36,6 +39,7 @@ impl Default for Config {
         Self {
             column_threshold: 2,
             static_columns: vec![],
+            hidden_columns: HashSet::new(),
         }
     }
 }
@@ -253,7 +257,10 @@ fn column_order(config: &Config, rows: &[Rowlike]) -> Vec<String> {
     column_counts(rows)
         .into_iter()
         .filter_map(|(n, col)| {
-            (n >= config.column_threshold && !static_columns.contains(col.as_str())).then_some(col)
+            (n >= config.column_threshold
+                && !static_columns.contains(col.as_str())
+                && !config.hidden_columns.contains(&col))
+            .then_some(col)
         })
         .collect()
 }
@@ -309,7 +316,11 @@ fn render_leftover(notcol: &str, instances: &[Option<String>]) -> HTML {
 }
 
 fn render_all_leftovers(config: &Config, row: &Row) -> HTML {
-    let mut order: Vec<_> = row.entries.keys().collect();
+    let mut order: Vec<_> = row
+        .entries
+        .keys()
+        .filter(|&col| !config.hidden_columns.contains(col))
+        .collect();
     order.sort_unstable();
     HTML(
         order
@@ -330,12 +341,14 @@ fn render_row(config: &Config, columns: &[String], rowlike: &mut Rowlike) -> HTM
                 .static_columns
                 .iter()
                 .map(|ocol| match ocol {
+                    Some(col) if config.hidden_columns.contains(col) => HTML::from(""),
                     Some(col) => render_cell(col, row),
                     None => HTML::from(r#"<td class="spacer_col"></td>"#),
                 })
                 .collect::<HTML>();
             let dynamic_cells = columns
                 .iter()
+                .filter(|&col| !config.hidden_columns.contains(col))
                 .map(|col| render_cell(col, row))
                 .collect::<HTML>();
             let leftovers = render_all_leftovers(config, row);
@@ -346,27 +359,34 @@ fn render_row(config: &Config, columns: &[String], rowlike: &mut Rowlike) -> HTM
     }
 }
 
-fn render_column_headers(config: &Config, columns: &[String]) -> HTML {
+fn column_header_labels<'a>(
+    config: &'a Config,
+    columns: &'a [String],
+) -> impl Iterator<Item = Option<&'a String>> {
     let static_columns = config.static_columns.iter().map(|oc| oc.as_ref());
     let dynamic_columns = columns.iter().map(Some);
+    static_columns.chain(dynamic_columns).filter(|ocol| {
+        ocol.map_or(true, |col| !config.hidden_columns.contains(col))
+    })
+}
+
+fn render_column_headers(config: &Config, columns: &[String]) -> HTML {
     HTML(
         String::from(r#"<tr class="key"><th></th>"#)
-            + &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>"#),
+            + &column_header_labels(config, 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>"#
+                        )
                     }
-                    .unwrap();
-                    acc
-                })
+                    None => write!(&mut acc, r#"<th class="col_spacer"></th>"#),
+                }
+                .unwrap();
+                acc
+            })
             + "</tr>\n",
     )
 }
@@ -575,6 +595,30 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_column_header_labels() {
+        let mut cfg = Config::default();
+
+        assert!(column_header_labels(&cfg, &["foo".to_owned()]).eq([Some(&"foo".to_owned())]));
+
+        cfg.static_columns.push(Some("bar".to_owned()));
+        assert!(column_header_labels(&cfg, &["foo".to_owned()])
+            .eq([Some(&"bar".to_owned()), Some(&"foo".to_owned())]));
+
+        cfg.static_columns.push(None);
+        assert!(column_header_labels(&cfg, &["foo".to_owned()]).eq([
+            Some(&"bar".to_owned()),
+            None,
+            Some(&"foo".to_owned())
+        ]));
+
+        cfg.hidden_columns.insert("foo".to_owned());
+        assert!(column_header_labels(&cfg, &["foo".to_owned()]).eq([Some(&"bar".to_owned()), None]));
+
+        cfg.hidden_columns.insert("bar".to_owned());
+        assert!(column_header_labels(&cfg, &["foo".to_owned()]).eq([None]));
+    }
+
     #[test]
     fn test_render_cell() {
         assert_eq!(
@@ -730,6 +774,20 @@ mod tests {
             ),
             HTML::from("bar: 2, foo")
         );
+        assert_eq!(
+            render_all_leftovers(
+                &Config {
+                    column_threshold: 2,
+                    static_columns: vec![],
+                    hidden_columns: HashSet::from(["private".to_owned()]),
+                },
+                &Row {
+                    label: "nope".to_owned(),
+                    entries: HashMap::from([("private".to_owned(), vec![None]),]),
+                }
+            ),
+            HTML::from("")
+        );
     }
 
     #[test]
@@ -753,6 +811,7 @@ mod tests {
                 &Config {
                     column_threshold: 0,
                     static_columns: vec![Some("foo".to_owned()), Some("bar".to_owned())],
+                    hidden_columns: HashSet::new(),
                 },
                 &["baz".to_owned()],
                 &mut Rowlike::Row(Row {
@@ -774,6 +833,7 @@ mod tests {
                 &Config {
                     column_threshold: 0,
                     static_columns: vec![Some("foo".to_owned()), None, Some("bar".to_owned())],
+                    hidden_columns: HashSet::new(),
                 },
                 &[],
                 &mut Rowlike::Row(Row {
@@ -786,6 +846,42 @@ mod tests {
             ),
             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>
+"#
+            )
+        );
+        assert_eq!(
+            render_row(
+                &Config {
+                    column_threshold: 0,
+                    static_columns: vec![],
+                    hidden_columns: HashSet::from(["foo".to_owned()]),
+                },
+                &[],
+                &mut Rowlike::Row(Row {
+                    label: "nope".to_owned(),
+                    entries: HashMap::from([("foo".to_owned(), vec![Some("f".to_owned())]),]),
+                })
+            ),
+            HTML::from(
+                r#"<tr><th id="nope">nope</th><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())],
+                    hidden_columns: HashSet::from(["foo".to_owned()]),
+                },
+                &[],
+                &mut Rowlike::Row(Row {
+                    label: "nope".to_owned(),
+                    entries: HashMap::from([("foo".to_owned(), vec![Some("f".to_owned())]),]),
+                })
+            ),
+            HTML::from(
+                r#"<tr><th id="nope">nope</th><td class="leftover" onmouseover="highlight('nope')" onmouseout="clear_highlight('nope')"></td></tr>
 "#
             )
         );