Re: [babel] Expertise in string manipulation available?

[Nick Dokos <nicholas.dokos@hp.com>]

Sebastien Vauban <wxhgmqzgwmuf@spammotel.com> wrote:

> Hello,
> 
> #+TITLE:     String manipulation
> 
> * Data
> 
> #+tblname: list-of-couples
> | Me           | @Here  |
> | Myself and I | @There |
> 
> * Successful outcome
> 
> I expect the above table to be transformed to those lines:
> 
> #+begin_example
> ---
> Me
> @Here
> ---
> Myself and I
> @There
> #+end_example
> 

I can do it easily in python except that I don't know how to produce the #+begin/end_example block.
My results are preceded by colons:

--8<---------------cut here---------------start------------->8---
* Data

#+tblname: list-of-couples
| Me           | @Here  |
| Myself and I | @There |

#+begin_src python :var table=list-of-couples :exports code :results output :tangle no
  for row in table:
      print "---"
      for i in range(len(row)):
          print row[i]
#+end_src

#+results:
: ---
: Me
: @Here
: ---
: Myself and I
: @There
--8<---------------cut here---------------end--------------->8---

Nick

> * First attempt
> 
> ** Code and output
> 
> #+begin_src awk :stdin list-of-couples :exports code :results output :tangle no
> {
>     print "---";
>     print $1;
>     print $2;
> }
> #+end_src
> 
> #+results:
> #+begin_example
> ---
> Me
> @Here
> ---
> Myself
> and
> #+end_example
> 
> ** Issue
> 
> The first line of the table is perfectly outputted.
> 
> The second line is not, because of the space in its first column: $2 refers
> then to the second word, not to the string of the second column.
> 
> * Second attempt
> 
> ** Code and output
> 
> #+begin_src emacs-lisp :var data=list-of-couples :exports results :results output :tangle no
> (mapc
>  (lambda (item)
>    (print (format "---\n%s\n%s\n"
>                   (first item)
>                   (second item))))
>  data)
> #+end_src
> 
> #+results:
> #+begin_example
> 
> "---
> Me
> @Here
> "
> 
> "---
> Myself and I
> @There
> "
> #+end_example
> 
> ** Issue
> 
> Literal double quotes are inserted in the output. Plus blank lines...
> 
> Best regards,
>   Seb
> 
> -- 
> Sebastien Vauban
> 
>