Add style for php 'blade' templates

src/reuse/comment.py

@@ -321,6 +321,14 @@ class BibTexCommentStyle(CommentStyle):
     SHEBANGS = ["% !BIB", "%!BIB"]
 
 
+class BladeCommentStyle(CommentStyle):
+    """Laravel Blade Template comment style."""
+
+    _shorthand = "blade"
+
+    MULTI_LINE = MultiLineSegments("{{--", "", "--}}")
+
+
 class CCommentStyle(CommentStyle):
     """C comment style."""
 
@@ -709,7 +717,6 @@ class XQueryCommentStyle(CommentStyle):
     ".mk": PythonCommentStyle,
     ".ml": MlCommentStyle,
     ".mli": MlCommentStyle,
-    ".nim.cfg": PythonCommentStyle,  # Nim-lang build config parameters/settings
     ".nim": PythonCommentStyle,
     ".nimble": PythonCommentStyle,  # Nim-lang build config
     ".nimrod": PythonCommentStyle,
@@ -837,6 +844,16 @@ class XQueryCommentStyle(CommentStyle):
     key.lower(): value for key, value in EXTENSION_COMMENT_STYLE_MAP.items()
 }
 
+#: A map of (common) double file extensions against comment types.
+MULTIPLE_EXTENSION_COMMENT_STYLE_MAP = {
+    ".blade.php": BladeCommentStyle,
+    ".nim.cfg": PythonCommentStyle,  # Nim-lang build config parameters/settings
+}
+
+MULTIPLE_EXTENSION_COMMENT_STYLE_MAP_LOWERCASE = {
+    k.lower(): v for k, v in MULTIPLE_EXTENSION_COMMENT_STYLE_MAP.items()
+}
+
 FILENAME_COMMENT_STYLE_MAP = {
     ".bashrc": PythonCommentStyle,
     ".bazelignore": PythonCommentStyle,
@@ -930,6 +947,10 @@ def get_comment_style(path: StrPath) -> Optional[Type[CommentStyle]]:
     """Return value of CommentStyle detected for *path* or None."""
     path = Path(path)
     style = FILENAME_COMMENT_STYLE_MAP_LOWERCASE.get(path.name.lower())
+    if style is None:
+        style = MULTIPLE_EXTENSION_COMMENT_STYLE_MAP_LOWERCASE.get(
+            "".join(path.suffixes).lower()
+        )
     if style is None:
         style = cast(
             Optional[Type[CommentStyle]],

tests/test_comment.py

@@ -13,12 +13,14 @@
 import pytest
 
 from reuse.comment import (
+    BladeCommentStyle,
     CommentStyle,
     CppCommentStyle,
     HtmlCommentStyle,
     LispCommentStyle,
     PythonCommentStyle,
     _all_style_classes,
+    get_comment_style,
 )
 from reuse.exceptions import CommentCreateError, CommentParseError
 
@@ -688,3 +690,11 @@ def test_parse_comment_lisp():
     )
 
     assert LispCommentStyle.parse_comment(text) == expected
+
+
+def test_get_comment_style():
+    """Select the right style based on the filename"""
+    assert get_comment_style("foo.php") == CppCommentStyle
+    assert get_comment_style("foo.blade.php") == BladeCommentStyle
+    assert get_comment_style("foo.bar.blade.php") == CppCommentStyle
+    assert get_comment_style("foo.php.blade") is None