parser: is not working with special character

[jirikuncar]

It is impossible to do search with special character like in "Gård"

Some pointers for the resolution:

In [9]: from invenio.modules.search.api import parser

In [13]: import pypeg2

In [14]: pypeg2.parse("toto", parser(), whitespace="")
Out[14]: Main(Query([SimpleQuery(ValueQuery(Value(SimpleValue('toto'))))]))

In [15]: pypeg2.parse("Gård", parser(), whitespace="")
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-15-64494a74f7c6> in <module>()
----> 1 pypeg2.parse("Gård", parser(), whitespace="") ...

In [16]: from __future__ import unicode_literals, print_function

In [17]: pypeg2.parse("Gård", parser(), whitespace="")
Out[17]: Main(Query([SimpleQuery(ValueQuery(Value(SimpleValue(u'G\xe5rd'))))]))

From the pypeg documentation :

Caveat: pyPEG 2.x is written for Python 3. You can use it with Python 2.7 with the following import (you don't need that for Python 3):

from __future__ import unicode_literals, print_function

originally submitted by @PXke as inveniosoftware/invenio#3296

[jirikuncar]

Closed via inveniosoftware/invenio@4a3c7c7.