pager sizing fix

deck/pager.py

@@ -27,6 +27,9 @@ def reflow(text):
   out = []
   for line in text.split('\n'):
     line = line.rstrip()
+    if len(line) == 0: # also handle effectively empty lines
+      out.append('')
+    else:
       while len(line) > 0:
         out.append(line[0:REAL_TERM_COLS])
         line = line[REAL_TERM_COLS:]
@@ -35,9 +38,9 @@ def reflow(text):
 def print_paged(text):
   """Reflow and print the text in a paginated manner"""
   lines = reflow(text)
-  ll = len(lines)
-  for i in range(0, ll, REAL_TERM_ROWS):
-    chunk = lines[i:i + REAL_TERM_ROWS]
+  while True:
+    chunk = lines[0:REAL_TERM_ROWS]
     for line in chunk: print(line)
-    if i + REAL_TERM_ROWS < ll:
-      input(CONT_MSG)
+    lines = lines[REAL_TERM_ROWS:]
+    if len(lines) > 0: input(CONT_MSG)
+    else: break