Read stdin when no file is specified

scripts/misaka

@@ -77,11 +77,14 @@ if __name__ == '__main__':
  renderer = HtmlRenderer(flags)
  to_html = Markdown(renderer, extensions).render
 
- for fn in files:
- fn = path.abspath(fn)
- if not path.exists(fn):
- print('Does not exist: %s' % fn)
- else:
- with open(fn, 'r') as fd:
- source = fd.read()
- print(to_html(source))
+ if files:
+ for fn in files:
+ fn = path.abspath(fn)
+ if not path.exists(fn):
+ print('Does not exist: %s' % fn)
+ else:
+ with open(fn, 'r') as fd:
+ source = fd.read()
+ print(to_html(source))
+ else:
+ print(to_html(sys.stdin.read()))