Add style for php 'blade' templates

Author: raboof

src/reuse/_comment.py

@@ -272,6 +272,13 @@ class BibTexCommentStyle(CommentStyle):
 
     MULTI_LINE = ("@Comment{", "", "}")
 
+class BladeCommentStyle(CommentStyle):
+    """Laravel Blade Template comment style."""
+
+    _shorthand = "blade"
+
+    MULTI_LINE = ("{{--", "", "--}}")
+    NEWLINE_AFTER = False
 
 class CCommentStyle(CommentStyle):
     """C comment style."""
@@ -646,6 +653,15 @@ class VimCommentStyle(CommentStyle):
     k.lower(): v for k, v in EXTENSION_COMMENT_STYLE_MAP.items()
 }
 
+#: A map of (common) double file extensions against comment types.
+EXTENSIONS_COMMENT_STYLE_MAP = {
+    ".blade.php": BladeCommentStyle,
+}
+
+EXTENSIONS_COMMENT_STYLE_MAP_LOWERCASE = {
+    k.lower(): v for k, v in EXTENSIONS_COMMENT_STYLE_MAP.items()
+}
+
 FILENAME_COMMENT_STYLE_MAP = {
     ".bashrc": PythonCommentStyle,
     ".coveragerc": PythonCommentStyle,

src/reuse/header.py

@@ -35,6 +35,7 @@
 from . import SpdxInfo
 from ._comment import (
     EXTENSION_COMMENT_STYLE_MAP_LOWERCASE,
+    EXTENSIONS_COMMENT_STYLE_MAP_LOWERCASE,
     FILENAME_COMMENT_STYLE_MAP_LOWERCASE,
     NAME_STYLE_MAP,
     CCommentStyle,
@@ -330,6 +331,9 @@ def find_and_replace_header(
 def _get_comment_style(path: Path) -> Optional[CommentStyle]:
     """Return value of CommentStyle detected for *path* or None."""
     style = FILENAME_COMMENT_STYLE_MAP_LOWERCASE.get(path.name.lower())
+    if style is None:
+        suffixes_lower = "".join(path.suffixes).lower()
+        style = EXTENSIONS_COMMENT_STYLE_MAP_LOWERCASE.get(suffixes_lower)
     if style is None:
         style = EXTENSION_COMMENT_STYLE_MAP_LOWERCASE.get(path.suffix.lower())
     return style