Enable async document conversion

main.py

@@ -130,24 +130,35 @@ async def __remove_temp(request):
     
     return PlainTextResponse("", 200)
 
-def __convert_text(input, type_in, type_out):
+async def __convert_text(input, type_out="plain", type_in):
     
     # Create a subprocess
     process = await asyncio.create_subprocess_exec(
-        'pandoc', '-t', 'html',  # command to execute
+        # command to execute
+        'pandoc', '-f', type_in, '-t', type_out,
         stdout=asyncio.subprocess.PIPE,  # redirect stdout
         stderr=asyncio.subprocess.STDOUT,
         stdin=asyncio.subprocess.PIPE,# redirect stderr
     )
     stdout, _ = await process.communicate(input=input.encode())
-    print(stdout.decode())
+    return (stdout.decode("utf-8"))
 
-def __convert2md(inp):
+async def __convert_file(fname_in, type_out="plain"):
+    proc = await asyncio.create_subprocess_exec(
+        'pandoc', '-i', fname_in, '-t', type_out,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.STDOUT,
+        stdin=asyncio.subprocess.PIPE,
+    )
+    stdout, _ = await proc.communicate()
+    return stdout.decode("utf-8")
+
+async def __convert2md(inp):
     # Use gfm-raw_html to strip styling data from source file
-    return pypandoc.convert_text(inp, "gfm-raw_html", "html")
+    return await __convert_text(inp.encode(), "gfm-raw_html", "html")
 
-def __convert2plain(inp):
-    return pypandoc.convert_text(inp, "plain", "html")
+async def __convert2plain(inp):
+    return await __convert_text(inp.encode(), "gfm-raw_html", "html")
 
 def convert2md(req):
     pass
@@ -156,7 +167,7 @@ async def __parse_paragraphs (content: str, batching: bool = False):
     _p = ""
     _rp = content
 
-    _rp = __convert2md(_rp).replace('\r','')
+    _rp = await __convert2md(_rp).replace('\r','')
     # remove empty lines and headers
     _p = [_x.strip() for _x in _rp.split('\n\n') if len(_x)!=0 and _x.strip().count('#') != len(_x)]
 
@@ -521,7 +532,7 @@ async def convert2html(request):
     
     for file in files:
         try:
-            output = pypandoc.convert_file(file, "html")
+            output = await __convert_file(file, "html")
             print(output)
 
         except Exception as e: