Prettym added some WS inside content-type parameters

[lyrm]

Hi,
Last issue that I identified with the fuzzed mail generator: it seems that prettym sometimes adds white spaces at the beginning or at the end of content-type parameters inside the quotes. That make the comparison functions of Content_type.Parameter not work properly.

If it is an expected behavior, we should add trim in the comparison functions.

Some seeds with this issue: 157, 160, 164, 221, 272, 319, 322.

[dinosaure]

From the seed 157, we can explain what happens. The Content-Type has such value

Content-Type: video/vnd.CCTV; ^M
                3ww$-+sp{6w32pil%`xa'}0gzr'g*="a-9I\\b?X>y+O>hkHm^S3MgL^Cw^Q}^XL9O^M
               "; `l#vtr*.losaoqw!mcsnsj#z~="^E'Z/M)^_^]8nWf(D^Y(k^O"; ^M
                cgjhm.="k^XR^Oy^A^EgZeKR*{^]4&Rn-8N5^e^^"; ^M
                or_6ccs#3="/0\vKmSWL9V^D:.^E<Thg"^M

The end of the quoted-string is done by (l. 3):

               "

So all spaces are added into the quoted-string. The quoted-string value contains, so, spaces. prettym then try to indent the Content-Type and adds, as you said, spaces:

Content-Type: video/vnd.CCTV; ^M$
                3ww$-+sp{6w32pil%`xa'}0gzr'g*="a-9I\b?X>y+O>hkHm^S3MgL^Cw^Q}^XL9O               ^M$
               "; `l#vtr*.losaoqw!mcsnsj#z~="^E'Z/M)^_^]8nWf(D^Y(k^O"; ^M$

I will try to propose a patch to limit this behavior and don't let to prettym the opportunity to split/insert fws at this step.

[dinosaure]

Fixed by #77