swigutil_py.c

On branch swig-py3: accept both of bytes/str for input char * arguments

* Replace typemap(in) for char * using 'parse' modifier with one using
function allows both of bytes/str in py2/py3 in libsvn_swig_py library
* Fix functions to convert Python objects into char pointer to accept
both of bytes/str object in py2/py3
* Fix to accept None as representation of NULL value on conversion
prop dict into apr_hash_t * and apr_array_header_t * of svn_props_t *

[In subversion/bindings/swig]

* core.i (%typemap(in) (const char *data, apr_size_t *len): Allow str
as well as bytes for data argment of svn_stream_write()

* include/svn_global.swg
(remove)(%typemap(in) char *, char const *, char * const,
char const * const): Move this typemap into include/svn_strings as
typemap (in) IN_STRING

* include/svn_string.swg (new)(%typemap(in) IN_STRING): replacement of
%typemap(in) char *, char const *, char * const, char const * const.
actual processing code is moved new svn_swig_py_string_to_cstring()
function in python/libsvn_swig_py/swigutil_py.c

* include/svn_types.swg (%typemap(in) const char *MAY_BE_NULL):
Move processing code into new svn_swig_py_string_to_cstring() function
in python/libsvn_swig_py/swigutil_py.c

* python/libsvn_swig_py/swigutil_py.c
(svn_swig_py_string_to_cstring): New function to convert Python
bytes or str into const char *, with better TypeError exception message
(svn_swig_py_string_type_exception): New function to construct
TypeError exception for new make_string_from_ob_maybe_null() function
(make_string_from_ob, make_svn_string_from_ob):
- Allow str as well as bytes for ob
- Don't raise TypeError exception because all callers don't expect it
(make_string_from_ob_maybe_null, make_svn_string_from_ob_maybe_null):
New function same as make_string_from_ob() and make_svn_string_fromob()
but allows None input represents NULL value and raise TypeError
if input value don't have appropriate type
(svn_swig_py_stringhash_from_dict, svn_swig_py_mergeinfo_from_dict,
svn_swig_py_proparray_from_dict, svn_swig_py_prophash_from_dict,
svn_swig_py_path_rev_hash_from_dict,
svn_swig_py_struct_ptr_hash_from_dict): separate check of key conversion
result and value conversion result
(svn_swig_py_proparray_from_dict, svn_swig_py_prophash_from_dict):
allow NULL for prop values
(svn_swig_py_unwrap_string):
- Allow str as well as bytes for source argument
(svn_swig_py_make_file):
- Allow str as well as bytes for py_file argument as file path
(svn_swig_py_auth_gnome_keyring_unlock_prompt_func):
- Use new function make_string_from_ob_maybe_null() instead of
make_string_from_ob() to check TypeError
- Report Python exception caused by Python callback function as
callback exception error

* python/libsvn_swig_py/swigutil_py.h
Expose new public function make_string_from_ob_maybe_null(), which is
used by typemap(in) char IN_STRING, typemap(in) const char *MAY_BY_NULL

* python/tests/client.py
(SubversionClientTestCase.log_entry_receiver_whole): New helper
callback function for new SubversionClientTestCase.test_log5_revprops
(SubversionClientTestCase.test_log5_revprops): new test for
typemap(in) apr_array_t *STRINGLIST and its helper function
svn_swig_py_unwrap_string()

* python/tests/core.py
(SubversionCoreTestCase.test_stream_write_exception):
- As unicode input is now valid, use int value as invalid input
- Add case to be expected to cause UnicodeEncodeError
(SubversionCoreTestCase.test_stream_write_str):(Only for Python 3)
New test case for svn_stream_write() to pass str object as data argument
(SubversionCoreTestCase.test_stream_write_bytes):
Renamed from SubversionCoreTestCase.test_stream_write

* python/tests/run_all.py: Register new test module typemap

* python/tests/typemap.py: New unittest module for typemaps
(SubversionTypemapTestCase): New unittest subclass for unit test about
typemaps
(SubversionTypemapTestCase.test_char_ptr_in): New test case
(SubversionTypemapTestCase.test_char_ptr_in_unicode_exception):
New test case
(SubversionTypemapTestCase.test_char_ptr_may_be_null): New test case
(SubversionTypemapTestCase.test_char_ptr_may_be_null_unicode_exception):
New test case
(SubversionTypemapTestCase.test_make_string_from_ob): New test case
(SubversionTypemapTestCase.test_prophash_from_dict_null_value):
New test case
(SubversionTypemapTestCase.test_make-string_ob_unicode_exception):
New test case
(SubversionTypemapTestCase.test_make_svn_string_ob_unicode_exception):
New test case
(suite): New function to drive SubversionTypemapTestCase