# This file is part of libFirm.
# Copyright (C) 2012 Karlsruhe Institute of Technology.
from jinjautil import export_filter, export
from datetime import datetime
import re


def filtjoin(string, joinstring):
    args = re.split('\s*\n\s*', string)
    if args[0] == '':
        args = args[1:]
    if len(args) > 0 and args[-1] == '':
        args = args[:-1]
    return joinstring.join(args)


def arguments(string, voidwhenempty=False):
    joined = filtjoin(string, ", ")
    if joined == "" and voidwhenempty:
        return "void"
    return joined


def hasnot(plist, flag):
    def prop(x):
        return not hasattr(x, flag) or not getattr(x, flag)
    return list(filter(prop, plist))


def has(plist, flag):
    return list(filter(lambda x: hasattr(x, flag) and getattr(x, flag), plist))


for f in [filtjoin, arguments, hasnot, has]:
    export_filter(f)

export(len)
export(hasattr)
export("/* Warning: Automatically generated file */", "warning")
export(datetime.now().replace(microsecond=0).isoformat(' '), "time")