chore: remove unused historic image files

checker.py

@@ -0,0 +1,109 @@
+import os
+import re
+
+def check_file(filepath):
+    issues = []
+    try:
+        with open(filepath, 'r', encoding='utf-8') as f:
+            lines = f.readlines()
+    except Exception as e:
+        return [f"Could not read file: {e}"]
+        
+    in_code_block = False
+    
+    for i, line in enumerate(lines):
+        line_stripped = line.strip()
+        
+        # Code block tracking
+        if line_stripped.startswith('```'):
+            in_code_block = not in_code_block
+            
+        if in_code_block:
+            continue
+            
+        # 1. Full-width parentheses `（` `）`
+        if '（' in line or '）' in line:
+            if line_stripped.startswith('#'):
+                issues.append(f"Line {i+1}: Header contains full-width parentheses '（' or '）'")
+            else:
+                issues.append(f"Line {i+1}: Text contains full-width parentheses '（' or '）'")
+                
+        # 2. Missing intro text after headers
+        if line_stripped.startswith('#'):
+            j = i + 1
+            while j < len(lines) and lines[j].strip() == '':
+                j += 1
+            if j < len(lines):
+                next_line = lines[j].strip()
+                if next_line.startswith('```'):
+                    issues.append(f"Line {i+1}: Header immediately followed by code block without text")
+                elif next_line.startswith('|') and len(next_line.split('|')) > 2:
+                    issues.append(f"Line {i+1}: Header immediately followed by table without text")
+                elif next_line.startswith('#') and next_line.count('#') == line_stripped.count('#') + 1:
+                    issues.append(f"Line {i+1}: Header immediately followed by sub-header (missing text between)")
+                elif next_line.startswith('!['):
+                    issues.append(f"Line {i+1}: Header immediately followed by image without text")
+
+        # 3. Missing blank line before list item
+        # Is this line a list item?
+        is_list_item = re.match(r'^(\s*[-*+]\s|\s*\d+\.\s)', line)
+        if is_list_item and i > 0:
+            prev_line = lines[i-1]
+            prev_line_stripped = prev_line.strip()
+            
+            # If prev line is not empty, and not already a list item, header, quote, or HTML comment
+            if prev_line_stripped and not prev_line_stripped.startswith('#') and not prev_line_stripped.startswith('>'):
+                if not re.match(r'^(\s*[-*+]\s|\s*\d+\.\s)', prev_line) and not prev_line_stripped.startswith('<!--') and not prev_line_stripped.startswith('|'):
+                    issues.append(f"Line {i+1}: Missing blank line before list item")
+                    
+    # Check EOF newlines
+    if set(lines) == {'\n'}:
+        pass
+    elif len(lines) > 0 and not lines[-1].endswith('\n') and not lines[-1] == '':
+         # Note: file.read().splitlines() drops the last empty lines, so simple ends with '\n' might be enough
+         pass
+    if len(lines) > 1 and lines[-1] == '\n' and lines[-2] == '\n':
+         issues.append("EOF: Multiple empty lines at end of file")
+
+    return issues
+
+def main():
+    summary_path = 'SUMMARY.md'
+    if not os.path.exists(summary_path):
+        print(f"Error: {summary_path} not found in {os.getcwd()}")
+        return
+        
+    with open(summary_path, 'r', encoding='utf-8') as f:
+        content = f.read()
+        
+    # Find all .md files in SUMMARY.md
+    md_files = re.findall(r'\(([^)]*\.md)\)', content)
+    md_files = list(dict.fromkeys(md_files)) # deduplicate
+    
+    total_issues = 0
+    
+    summary_out = open('format_report.txt', 'w', encoding='utf-8')
+    
+    for md_file in md_files:
+        filepath = os.path.join(os.path.dirname(summary_path), md_file)
+        if os.path.exists(filepath):
+            issues = check_file(filepath)
+            if issues:
+                print(f"--- {md_file} ---")
+                summary_out.write(f"--- {md_file} ---\n")
+                for issue in issues:
+                    print(issue)
+                    summary_out.write(issue + "\n")
+                print()
+                summary_out.write("\n")
+                total_issues += len(issues)
+        else:
+            print(f"Warning: File not found {filepath}")
+            
+    summary_out.write(f"Total issues found: {total_issues}\n")
+    summary_out.close()
+    
+    print(f"Total issues found: {total_issues}. Report saved to format_report.txt.")
+
+if __name__ == '__main__':
+    main()