From: Scott Worley <scottworley@scottworley.com>
Date: Tue, 20 Aug 2024 17:38:24 +0000 (-0700)
Subject: Sort columns _descending_ by frequency
X-Git-Tag: v0.2.1~2
X-Git-Url: http://git.scottworley.com/tablify/commitdiff_plain/38d1167ae3ec3dac0f183938bb353c995052ae6c?hp=3bc643e943293ff1a352ca554797a274f2bc91ae

Sort columns _descending_ by frequency
---

diff --git a/Changelog b/Changelog
index 4be743b..8af8811 100644
--- a/Changelog
+++ b/Changelog
@@ -1,5 +1,6 @@
 ## [Unreleased]
 - A little more space up top
+- Sort columns _descending_ by frequency
 
 ## [0.2.0] - 2024-08-19
 Initial release
diff --git a/src/lib.rs b/src/lib.rs
index 3002692..fbafcb1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -137,7 +137,7 @@ fn column_counts(rows: &[RowInput]) -> Vec<(usize, String)> {
         .into_iter()
         .map(|(col, n)| (n, col))
         .collect();
-    counts.sort();
+    counts.sort_unstable_by(|(an, acol), (bn, bcol)| bn.cmp(an).then(acol.cmp(bcol)));
     counts
 }
 fn column_order(rows: &[RowInput]) -> Vec<String> {
@@ -353,7 +353,7 @@ mod tests {
                     .collect::<Result<Vec<_>, _>>()
                     .unwrap()
             ),
-            vec![(1, String::from("bar")), (2, String::from("baz"))]
+            vec![(2, String::from("baz")), (1, String::from("bar"))]
         );
         assert_eq!(
             column_counts(
@@ -361,7 +361,7 @@ mod tests {
                     .collect::<Result<Vec<_>, _>>()
                     .unwrap()
             ),
-            vec![(1, String::from("bar")), (2, String::from("baz"))]
+            vec![(2, String::from("baz")), (1, String::from("bar"))]
         );
         assert_eq!(
             column_counts(
@@ -369,7 +369,7 @@ mod tests {
                     .collect::<Result<Vec<_>, _>>()
                     .unwrap()
             ),
-            vec![(1, String::from("bar")), (2, String::from("baz"))]
+            vec![(2, String::from("baz")), (1, String::from("bar"))]
         );
     }