Initial commit: CodeMap v0.1.0 - CLI tool for code analysis and diagram generation

codemap/parsers/javascript_parser.py

@@ -0,0 +1,62 @@
+import re
+from pathlib import Path
+from typing import List
+from codemap.parsers.base import BaseParser, Dependency, ParsedFile
+
+
+class JavaScriptParser(BaseParser):
+    supported_extensions = [".js", ".jsx", ".ts", ".tsx", ".mjs"]
+
+    IMPORT_PATTERNS = [
+        re.compile(r'^import\s+(?:\{[^}]*\}|\* as \w+|\w+)\s+from\s+["\']([^"\']+)["\']'),
+        re.compile(r'^import\s+["\']([^"\'])["\']'),
+        re.compile(r'require\s*\(\s*["\']([^"\']+)["\']\s*\)'),
+        re.compile(r'import\s*\(\s*["\']([^"\']+)["\']\s*\)'),
+    ]
+
+    ES6_FROM_PATTERN = re.compile(r'from\s+["\']([^"\'])["\']')
+    REQUIRE_PATTERN = re.compile(r'require\s*\(\s*["\']([^"\']+)["\']\s*\)')
+
+    def parse(self, file_path: Path) -> ParsedFile:
+        module_name = self.extract_module_name(file_path)
+        dependencies: List[Dependency] = []
+
+        try:
+            with open(file_path, "r", encoding="utf-8") as f:
+                content = f.read()
+        except (UnicodeDecodeError, OSError) as e:
+            return ParsedFile(
+                file_path=file_path,
+                module_name=module_name,
+                dependencies=[],
+                file_type="javascript"
+            )
+
+        lines = content.split('\n')
+        for line_num, line in enumerate(lines, 1):
+            line = line.strip()
+            if not line or line.startswith('//'):
+                continue
+
+            for pattern in self.IMPORT_PATTERNS:
+                match = pattern.match(line)
+                if match:
+                    import_path = match.group(1)
+                    if not import_path.startswith('.') and not import_path.startswith('/'):
+                        dep = Dependency(
+                            module_name=import_path,
+                            file_path=file_path,
+                            line_number=line_num
+                        )
+                        dependencies.append(dep)
+                    break
+
+        return ParsedFile(
+            file_path=file_path,
+            module_name=module_name,
+            dependencies=dependencies,
+            file_type="javascript"
+        )
+
+    def extract_module_name(self, file_path: Path) -> str:
+        return file_path.stem