14.8.2.18 :hlines

Tables are frequently represented with one or more horizontal lines, or hlines. The :hlines argument to a code block accepts the values yes or no, with a default value of no.

• no Strips horizontal lines from the input table. In most languages this is the desired effect because an hline symbol is interpreted as an unbound variable and raises an error. Setting :hlines no or relying on the default value yields the following results.

  #+NAME: many-cols
  | a | b | c |
  |---+---+---|
  | d | e | f |
  |---+---+---|
  | g | h | i |
  
  #+NAME: echo-table
  #+BEGIN_SRC python :var tab=many-cols
    return tab
  #+END_SRC
  
  #+RESULTS: echo-table
  | a | b | c |
  | d | e | f |
  | g | h | i |
  

• yes Leaves hlines in the table. Setting :hlines yes has this effect.

  #+NAME: many-cols
  | a | b | c |
  |---+---+---|
  | d | e | f |
  |---+---+---|
  | g | h | i |
  
  #+NAME: echo-table
  #+BEGIN_SRC python :var tab=many-cols :hlines yes
    return tab
  #+END_SRC
  
  #+RESULTS: echo-table
  | a | b | c |
  |---+---+---|
  | d | e | f |
  |---+---+---|
  | g | h | i |