def make_generic_c_patterns(keywords, builtins,
                            instance=None, define=None, comment=None):
    "Strongly inspired from idlelib.ColorDelegator.make_pat"
    kw = r"\b" + any("keyword", keywords.split()) + r"\b"
    builtin = r"\b" + any("builtin", builtins.split()+C_TYPES.split()) + r"\b"
    if comment is None:
        comment = any("comment", [r"//[^\n]*", r"\/\*(.*?)\*\/"])
    comment_start = any("comment_start", [r"\/\*"])
    comment_end = any("comment_end", [r"\*\/"])
    if instance is None:
        instance = any("instance", [r"\bthis\b"])
    number = any("number",
                 [r"\b[+-]?[0-9]+[lL]?\b",
                  r"\b[+-]?0[xX][0-9A-Fa-f]+[lL]?\b",
                  r"\b[+-]?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?\b"])
    sqstring = r"(\b[rRuU])?'[^'\\\n]*(\\.[^'\\\n]*)*'?"
    dqstring = r'(\b[rRuU])?"[^"\\\n]*(\\.[^"\\\n]*)*"?'
    string = any("string", [sqstring, dqstring])
    if define is None:
        define = any("define", [r"#[^\n]*"])
    return "|".join([instance, kw, comment, string, number,
                     comment_start, comment_end, builtin,
                     define, any("SYNC", [r"\n"])])