Allow additional text to folllow formatter pragma comments

crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_on_off/reason.py

@@ -0,0 +1,27 @@
+# fmt: off
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on reason
+
+# fmt: off reason
+x =    1  
+# fmt: on reason
+
+# fmt: off - reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on - reason

crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_skip/reason.py

@@ -0,0 +1,3 @@
+x =    1  # fmt: skip
+x =    1  # fmt: skip reason
+x =    1  # fmt: skip - reason

crates/ruff_python_formatter/src/comments/mod.rs

@@ -178,7 +178,14 @@ impl SourceComment {
                 "off" => Some(SuppressionKind::Off),
                 "on" => Some(SuppressionKind::On),
                 "skip" => Some(SuppressionKind::Skip),
-                _ => None,
+
+                // Allow additional context separated by whitespace
+                command => match command.split_whitespace().next() {
+                    Some("off") => Some(SuppressionKind::Off),
+                    Some("on") => Some(SuppressionKind::On),
+                    Some("skip") => Some(SuppressionKind::Skip),
+                    _ => None,
+                },
             }
         } else if let Some(command) = trimmed.strip_prefix("yapf:") {
             match command.trim_whitespace_start() {

crates/ruff_python_formatter/tests/snapshots/format@fmt_on_off__reason.py.snap

@@ -0,0 +1,68 @@
+---
+source: crates/ruff_python_formatter/tests/fixtures.rs
+input_file: crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_on_off/reason.py
+---
+## Input
+```python
+# fmt: off
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on reason
+
+# fmt: off reason
+x =    1  
+# fmt: on reason
+
+# fmt: off - reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on - reason
+```
+
+## Output
+```python
+# fmt: off
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on reason
+
+# fmt: off reason
+x =    1  
+# fmt: on reason
+
+# fmt: off - reason
+x =    1  
+# fmt: on
+
+# fmt: off
+x =    1  
+# fmt: on - reason
+```
+
+
+

crates/ruff_python_formatter/tests/snapshots/format@fmt_skip__reason.py.snap

@@ -0,0 +1,20 @@
+---
+source: crates/ruff_python_formatter/tests/fixtures.rs
+input_file: crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_skip/reason.py
+---
+## Input
+```python
+x =    1  # fmt: skip
+x =    1  # fmt: skip reason
+x =    1  # fmt: skip - reason
+```
+
+## Output
+```python
+x =    1  # fmt: skip
+x =    1  # fmt: skip reason
+x =    1  # fmt: skip - reason
+```
+
+
+