Fix wrapping for backslash hard breaks

src/wrap.rs

@@ -301,17 +301,28 @@ pub fn wrap_text(lines: &[String], width: usize) -> Vec<String> {
             indent = line.chars().take_while(|c| c.is_whitespace()).collect();
         }
         let trimmed_end = line.trim_end();
-        let hard_break = line.ends_with("  ")
-            || trimmed_end.ends_with("<br>")
-            || trimmed_end.ends_with("<br/>")
-            || trimmed_end.ends_with("<br />");
-        let text = trimmed_end
+        let text_without_html_breaks = trimmed_end
             .trim_end_matches("<br>")
             .trim_end_matches("<br/>")
-            .trim_end_matches("<br />")
-            .trim_end_matches(' ')
+            .trim_end_matches("<br />");
+
+        let is_trailing_spaces = line.ends_with("  ");
+        let is_html_br = trimmed_end != text_without_html_breaks;
+        let backslash_count = line
+            .trim_end()
+            .chars()
+            .rev()
+            .take_while(|&c| c == '\\')
+            .count();
+        let is_backslash_escape = backslash_count % 2 == 1;
+
+        let hard_break = is_trailing_spaces || is_html_br || is_backslash_escape;
+
+        let text = text_without_html_breaks
             .trim_start()
+            .trim_end_matches(' ')
             .to_string();
+
         buf.push((text, hard_break));
     }
 

tests/data/hard_linebreak_expected.txt

@@ -0,0 +1,4 @@
+Scenarios live under `tests/features/`. Step implementations in `tests` share \
+a common `World` struct that uses `figment::Jail` for isolation. Each scenario
+demonstration example \
+executes asynchronously with `tokio`.

tests/data/hard_linebreak_input.txt

@@ -0,0 +1,3 @@
+Scenarios live under `tests/features/`. Step implementations in `tests` share \
+a common `World` struct that uses `figment::Jail` for isolation. Each scenario demonstration example \
+executes asynchronously with `tokio`.

tests/integration.rs

@@ -794,6 +794,35 @@ fn test_preserve_hard_line_breaks() {
     assert_eq!(output[1], "Line two follows.");
 }
 
+#[test]
+fn test_wrap_hard_linebreak_backslash() {
+    let input: Vec<String> = include_lines!("data/hard_linebreak_input.txt");
+    let expected: Vec<String> = include_lines!("data/hard_linebreak_expected.txt");
+    assert_eq!(process_stream(&input), expected);
+}
+
+#[test]
+fn test_wrap_hard_linebreak_backslash_edge_cases() {
+    let input = lines_vec!(
+        "This line ends with two backslashes: \\\\",
+        "This line ends with a single backslash: \\",
+        " \\ ",
+        "\\",
+        "Text before \\ and after",
+        "   \\",
+        "",
+    );
+    let expected = lines_vec!(
+        "This line ends with two backslashes: \\\\ This line ends with a single backslash:",
+        "\\",
+        "\\",
+        "\\",
+        "Text before \\ and after \\",
+        "",
+    );
+    assert_eq!(process_stream(&input), expected);
+}
+
 #[test]
 /// Tests that `process_stream` preserves complex table formatting without modification.
 ///