add hackmd runner test

src/test_hackmd.py

@@ -0,0 +1,59 @@
+import platform
+import base64
+print(sys.argv)
+
+async def to_img_file(filename, url):
+    with open(filename,'wb') as out:
+
+        if url.startswith('//') or url.startswith('http'):
+            async with platform.fopen(img, "rb") as img:
+                out.write(img.read())
+        elif url.startswith('data:image/'):
+            url = url[url.find(';base64,')+7:]
+            out.write(base64.b64decode(url,validate=False))
+            print("IMAGE:", filename,len(url))
+
+
+async def main():
+    buff = []
+    code = False
+    if sys.argv[-1].find('hackmd.io')<0:
+        sys.argv.append('https://hackmd.io/zZTCp8XETLiX0QA30bbPUQ')
+
+    async with platform.fopen(sys.argv[-1]+"/download", "r") as file:
+        for line in file.readlines():
+            if line[0]=='!' and line.find('](')>0:
+                tag, img = line.rsplit('](',1)
+                tag = tag.rsplit('[',1)[-1].strip()
+                img = img.strip(')\n')
+                await to_img_file(tag, img)
+                continue
+            if line.startswith('```py'):
+                print('Begin')
+                code = True
+                continue
+
+            if line.endswith('```\n'):
+                print('End')
+                code = False
+                continue
+
+            if code:
+                buff.append(line)
+                continue
+            print(line,end="")
+
+    with open('main.py','w') as file:
+        file.write(''.join(buff))
+
+    await shell.runpy('main.py')
+
+    print("\n"*4, "HACKMD URL :", sys.argv[-1],"\n"*4)
+    shell.interactive(prompt=True)
+
+    while 1:
+        await asyncio.sleep(0)
+
+
+asyncio.run(main())
+