Add assertion that headers follow the pattern /"..."/ or /<...>/

pystencils/backends/cbackend.py

+import re
 from collections import namedtuple
 from typing import Set
 
@@ -24,6 +25,9 @@ except ImportError:
 
 __all__ = ['generate_c', 'CustomCodeNode', 'PrintNode', 'get_headers', 'CustomSympyPrinter']
 
+
+HEADER_REGEX = re.compile(r'^[<"].*[">]$')
+
 KERNCRAFT_NO_TERNARY_MODE = False
 
 
@@ -112,6 +116,9 @@ def get_headers(ast_node: Node) -> Set[str]:
         if isinstance(g, Node):
             headers.update(get_headers(g))
 
+    for h in headers:
+        assert HEADER_REGEX.match(h), f'header /{h}/ does not follow the pattern /"..."/ or /<...>/'
+
     return sorted(headers)