# -*- Mode: Python -*-
# GObject-Introspection - a framework for introspecting GObject libraries
# Copyright (C) 2008  Johan Dahlin
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#

import re
import os

# Copied from h2defs.py
_upperstr_pat1 = re.compile(r'([^A-Z])([A-Z])')
_upperstr_pat2 = re.compile(r'([A-Z][A-Z])([A-Z][0-9a-z])')
_upperstr_pat3 = re.compile(r'^([A-Z])([A-Z])')


def to_underscores(name):
    """Converts a typename to the equivalent underscores name.
    This is used to form the type conversion macros and enum/flag
    name variables"""
    name = _upperstr_pat1.sub(r'\1_\2', name)
    name = _upperstr_pat2.sub(r'\1_\2', name)
    name = _upperstr_pat3.sub(r'\1_\2', name, count=1)
    return name


def to_underscores_noprefix(name):
    """Like to_underscores, but designed for "unprefixed" names.
    to_underscores("DBusFoo") => dbus_foo, not d_bus_foo."""
    name = _upperstr_pat1.sub(r'\1_\2', name)
    name = _upperstr_pat2.sub(r'\1_\2', name)
    return name

_libtool_pat = re.compile("dlname='([A-z0-9\.\-\+]+)'\n")


def extract_libtool(libname):
    data = open(libname).read()
    filename = _libtool_pat.search(data).groups()[0]
    libname = os.path.join(os.path.dirname(libname),
                           '.libs', filename)
    # FIXME: This hackish, but I'm not sure how to do this
    #        in a way which is compatible with both libtool 2.2
    #        and pre-2.2. Johan 2008-10-21
    libname = libname.replace('.libs/.libs', '.libs')
    return libname