implemented edurl and viewurl helpers

app/ed.py

@@ -201,20 +201,35 @@ def edit(fname):
   editor = Ed(fname)
   editor.run()
 
-def edbuf():
+def edbuf(bufstr=''):
   editor = Ed()
+  editor.buffer = bufstr.split('\n')
+  editor.current_line = len(editor.buffer)
   editor.run()
   return '\n'.join(editor.buffer)
 
+def edurl(url):
+  from deck.http import http_fetch
+  status, text = http_fetch(url)
+  return edbuf(text)
+
+def viewbuf(text, lno=False):
+  if lno:
+    buf = text.split('\n')
+    for i in range(0, len(buf) - 1):
+      buf[i] = f'{(i+1):<5} {buf[i]}'
+    text = '\n'.join(buf)
+  print_paged(text)
+
 def view(fname, lno=False):
   try:
     with open(fname, 'r') as f:
       text = f.read()
-      if lno:
-        buf = text.split('\n')
-        for i in range(0, len(buf) - 1):
-          buf[i] = f'{(i+1):<5} {buf[i]}'
-        text = '\n'.join(buf)
-      print_paged(text)
+      viewbuf(text, lno)
   except:
     print('Error opening the input file!')
+
+def viewurl(url, lno=False):
+  from deck.http import http_fetch
+  status, text = http_fetch(url)
+  viewbuf(text, lno)