Re: PyYAML multi-line strings

On 28/11/12 20:37, Kirill Simonov wrote:
> PyYAML forces double-quote style on scalars with end-of-line whitespace.
>  I think the rationale was that end-of-line whitespace could not be
> detected visually in block style.
> 
> Here is the relevant code:
> http://pyyaml.org/browser/pyyaml/trunk/lib/yaml/emitter.py#L761

I have a slightly different problem, reported by someone who is using
Spanish accented characters.  The data is stored in a UTF-8 encoded
Postgres database and fetched into Python.  Under Python2, this caused
an infamous UnicodeError: ascii codec can't encode.  Under Python3,
there was no error but the string wasn't shown in block style.

So I now decode the string from utf_8 into unicode under Python2 and use
a class the expects Python2 'unicode' class.  Now the behavior under
Python2 is the same as Python3: no error but no block style either.

Here is some sample output, one with an accent, the other without:

  view tfilm:
    definition: " SELECT film.film_id, film.title,\n        CASE\n
      WHEN\
      \ film.description IS NULL THEN 'Jur\xEDdico'::text\n
ELSE film.description\n\
      \        END AS description\n   FROM film;"
  view tfilm_noaccent:
    definition: |2-
       SELECT film.film_id, film.title,
              CASE
                  WHEN film.description IS NULL THEN 'Juridico'::text
                  ELSE film.description
              END AS description
         FROM film;

Is the problem because pyyaml can't handle the \xED embedded in the
string or is it something else?  If the former, is there some workaround?

Happy 2013!

Joe

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