Function unescape_string_literal

django/utils/text.py:445–462

r""" Convert quoted string literals to unquoted strings with escaped quotes and backslashes unquoted:: >>> unescape_string_literal('"abc"') 'abc' >>> unescape_string_literal("'abc'") 'abc' >>> unescape_string_literal('"a \"bc\""') 'a "bc"'

(s)

@keep_lazy_text
def unescape_string_literal(s):
    r"""
    Convert quoted string literals to unquoted strings with escaped quotes and
    backslashes unquoted::

        >>> unescape_string_literal('"abc"')
        'abc'
        >>> unescape_string_literal("'abc'")
        'abc'
        >>> unescape_string_literal('"a \"bc\""')
        'a "bc"'
        >>> unescape_string_literal("'\'ab\' c'")
        "'ab' c"
    """
    if not s or s[0] not in "\"'" or s[-1] != s[0]:
        raise ValueError("Not a string literal: %r" % s)
    quote = s[0]
    return s[1:-1].replace(r"\%s" % quote, quote).replace(r"\\", "\\")


@keep_lazy_text