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bpo-36301: Add _PyWstrList structure (GH-12343)

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Replace messy _Py_wstrlist_xxx() functions with a new clean
_PyWstrList structure and new _PyWstrList_xxx() functions.

Changes:

* Add _PyCoreConfig.use_module_search_paths to decide if
  _PyCoreConfig.module_search_paths should be computed or not, to
  support empty search path list.
* _PyWstrList_Clear() sets length to 0 and items to NULL, whereas
  _Py_wstrlist_clear() only freed memory.
* _PyWstrList_Append() returns an int, whereas _Py_wstrlist_append()
  returned _PyInitError.
* _PyWstrList uses Py_ssize_t for the length, instead of int.
* Replace (int, wchar_t**) with _PyWstrList in:

  * _PyPreConfig
  * _PyCoreConfig
  * _PyPreCmdline
  * _PyCmdline

* Replace "int orig_argv; wchar_t **orig_argv;"
  with "_PyWstrList orig_argv".
* _PyCmdline and _PyPreCmdline now also copy wchar_argv.
* Rename _PyArgv_Decode() to _PyArgv_AsWstrList().
* PySys_SetArgvEx() now pass the fixed (argc, argv) to
  _PyPathConfig_ComputeArgv0() (don't pass negative argc or NULL
  argv).
* _PyOS_GetOpt() uses Py_ssize_t
This commit is contained in:
Victor Stinner 2019-03-15 15:08:05 +01:00 • committed by GitHub
parent 86082c22d2
commit 74f6568bbd
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 303 additions and 345 deletions
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8
Python/getopt.c
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@ -37,9 +37,9 @@
extern "C" {
#endif
int _PyOS_opterr = 1; /* generate error messages */
int _PyOS_optind = 1; /* index into argv array */
wchar_t *_PyOS_optarg = NULL; /* optional argument */
int _PyOS_opterr = 1; /* generate error messages */
Py_ssize_t _PyOS_optind = 1; /* index into argv array */
const wchar_t *_PyOS_optarg = NULL; /* optional argument */
static wchar_t *opt_ptr = L"";
@ -61,7 +61,7 @@ void _PyOS_ResetGetOpt(void)
opt_ptr = L"";
}
int _PyOS_GetOpt(int argc, wchar_t **argv, int *longindex)
int _PyOS_GetOpt(Py_ssize_t argc, wchar_t **argv, int *longindex)
{
wchar_t *ptr;
wchar_t option;