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_archive/lib/web/mdserver/macro_chart.py

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+import re
+from typing import TYPE_CHECKING
+from mdcollections.base_types import MDPage
+
+def js_to_python(js_str):
+    """Convert JavaScript object notation to Python dictionary syntax."""
+    # Remove any 'option =' prefix and trailing semicolon
+    js_str = re.sub(r'^option\s*=\s*', '', js_str)
+    js_str = re.sub(r';(\s*)$', '', js_str)
+    
+    # Convert JavaScript property names to Python dictionary keys
+    js_str = re.sub(r'(\b\w+):', r'"\1":', js_str)
+    
+    # Convert single quotes to double quotes for string values
+    # First, replace escaped single quotes with a placeholder
+    js_str = js_str.replace("\\'", "___ESCAPED_QUOTE___")
+    # Then replace regular single quotes with double quotes
+    js_str = js_str.replace("'", '"')
+    # Finally, restore escaped single quotes
+    js_str = js_str.replace("___ESCAPED_QUOTE___", "\\'")
+    
+    # Handle trailing commas
+    js_str = re.sub(r',(\s*[}\]])', r'\1', js_str)
+    
+    # Handle special JavaScript values
+    js_str = js_str.replace('true', 'True').replace('false', 'False').replace('null', 'None')
+    
+    # Remove any comments
+    js_str = re.sub(r'//.*?\n|/\*.*?\*/', '', js_str, flags=re.DOTALL)
+    
+    return js_str.strip()
+
+def process_markdown_echarts(page: MDPage) -> MDPage:
+    """Convert ```echarts blocks to ```py sl blocks that use st_echarts."""
+    if not isinstance(page, MDPage):
+        raise TypeError("page must be a MDPage")
+
+    def replace_echarts_block(match):
+        echarts_code = match.group(1).strip()
+        python_code = js_to_python(echarts_code)
+        
+        # Create the streamlit code block
+        streamlit_code = f"""```py sl
+from streamlit_echarts import st_echarts
+option = {python_code}
+st_echarts(options=option, height="400px")
+```"""
+        return streamlit_code
+
+    # Process all echarts code blocks
+    processed_content = re.sub(r"```echarts\n(.*?)\n```", replace_echarts_block, page.content, flags=re.DOTALL)
+    
+    page.content_ = processed_content
+    
+    return page