Table Spec

[neizod]

+-------+-----+-----+
| topic | abc | def |
+---+---+-----+-----+
| 1 | 2 | ABC | DEF |
+---+---+-----+-----+

something like this

• table column rely on upper line only
  • line: topic abc def rely on upper line: +--+--+--+, so there are 3 cols.
  • line: 1 2 ABC DEF rely on: +--+--+--+--+, 4 cols.
  • last line might be simplify for just +-----+ (2 + sign).

advance version

+-------+-----+-----+
| topic   abc   def |
+   +   +-----+-----+
| 1 | 2 | ABC   DEF |
+   +   +-----+-----+
| 3 | 4 | BCA   EFD |
+   +   +           +
| 5 | 6 |           |
+---+---+-----+-----+

• the --- and | might be omitted to make invisible line. such as
• span cols and rows:
  • cols, just remove + sign from +---+---+.
  • rows, how?

[neizod]

already been implement in reST http://docutils.sourceforge.net/rst.html, just follow it's simplification.