import py

from rpython.rtyper.lltypesystem import lltype, rffi

from rpython.rtyper.lltypesystem.lloperation import llop

from rpython.translator import cdir

from rpython.translator.tool.cbuild import ExternalCompilationInfo

# ____________________________________________________________

srcdir = py.path.local(cdir) / 'src'

compilation_info = ExternalCompilationInfo(

includes=['readline/readline.h'],

libraries=["readline"])

def llexternal(*args, **kwargs):

return rffi.llexternal(*args, compilation_info=compilation_info, **kwargs)

__readline = llexternal('readline', [rffi.CCHARP], rffi.CCHARP)

def _readline(prompt):

result = __readline(rffi.str2charp(prompt))

if result == lltype.nullptr(rffi.CCHARP.TO):

return u""

else:

return unicode(rffi.charp2str(result))