Nelson Ben authored Mar 21, 2019 and Germán Poo-Caamaño committed Nov 24, 2019

Implemented in poppler MR:
https://gitlab.freedesktop.org/poppler/poppler/merge_requests/267

as the new poppler result data type is PopplerFindRectangle which
incorporates more fields than just coordinates, we create a
corresponding type in Evince, called EvFindRectangle, and use it
all across Evince including the pdf backend (ev-poppler.cc) and
djvu backend (djvu-document.c) which are the only backends that
implement text search interface.

This new feature has the following aspects:

 - Ignores hyphen character while matching when 1) it's the
   last character of the line and 2) its corresponding matching
   character in the search term is not an hyphen too.

 - Any whitespace characters in the search term will be allowed
   to match on the logic position where the lines split (i.e. what
   would normally be the newline character in a text file, but
   PDF text does not include newline characters between lines).

 - It won't match on text spanning more than two lines, i.e. it
   only matches text spanning from end of one line to start of
   next line.

Part of issue #333