git fixec null symbol

web/backend/app/services/altium_parser.py

@@ -8,11 +8,22 @@ from pathlib import Path
 from typing import Optional
 
 
+def sanitize_text(value: str | None) -> str:
+    """Remove NUL bytes — PostgreSQL text fields reject them; SchDoc may contain them."""
+    if not value:
+        return ""
+    return value.replace("\x00", "")
+
+
 @dataclass
 class ComponentProperty:
     name: str
     text: str
 
+    def __post_init__(self) -> None:
+        self.name = sanitize_text(self.name)
+        self.text = sanitize_text(self.text)
+
 
 @dataclass
 class DielProperty:
@@ -22,6 +33,10 @@ class DielProperty:
     diel_type: int
     layer_number: int
 
+    def __post_init__(self) -> None:
+        self.name = sanitize_text(self.name)
+        self.value = sanitize_text(self.value)
+
 
 @dataclass
 class ProjectData:
@@ -342,6 +357,7 @@ class AltiumParser:
 
 
 def make_complex_string(text: str, props: list[ComponentProperty]) -> str:
+    text = sanitize_text(text)
     if not text.startswith("="):
         return text
     expr = text[1:]
@@ -351,7 +367,7 @@ def make_complex_string(text: str, props: list[ComponentProperty]) -> str:
         key = m.group(1)
         return mapping.get(key, "")
 
-    return re.sub(r"['\"]([^'\"]+)['\"]", repl, expr)
+    return sanitize_text(re.sub(r"['\"]([^'\"]+)['\"]", repl, expr))
 
 
 def find_prjpcb(extract_dir: Path) -> Optional[Path]: