* better latex support (changed delimiter from /( to regular $)

backend/pdf_to_mmd.py

@@ -1,4 +1,6 @@
 import subprocess
+from pathlib import Path
+import time
 
 
 def pdf_to_mmd(path_input: str):
@@ -11,6 +13,18 @@ def pdf_to_mmd(path_input: str):
     output_dir = "../documents/mmds"
     command = ['nougat', path_input, "-o", output_dir]
     subprocess.run(command)
+    time.sleep(1)
+    # Change the math delimiter to the common delimiter used in MMD
+    with open(f"{output_dir}/{str(Path(path_input).stem)}.mmd", "r+") as doc:
+        content = doc.read()
+        print(content)
+
+        content = content.replace(r"\[", "$$").replace(r"\]", "$$")
+        content = content.replace(r"\(", "$").replace(r"\)", "$")
+        # delete the content of the file
+        doc.seek(0)
+        doc.truncate()
+        doc.write(content)