mirror of
https://github.com/python/cpython.git
synced 2025-10-31 13:41:24 +00:00
6ea4186de3
- new PYTHONCOERCECLOCALE config setting - coerces legacy C locale to C.UTF-8, C.utf8 or UTF-8 by default - always uses C.UTF-8 on Android - uses `surrogateescape` on stdin and stdout in the coercion target locales - configure option to disable locale coercion at build time - configure option to disable C locale warning at build time
119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/* Minimal main program -- everything is loaded from the library */
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#include "Python.h"
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#include <locale.h>
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#ifdef __FreeBSD__
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#include <fenv.h>
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#endif
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#ifdef MS_WINDOWS
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int
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wmain(int argc, wchar_t **argv)
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{
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return Py_Main(argc, argv);
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}
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#else
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/* Access private pylifecycle helper API to better handle the legacy C locale
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*
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* The legacy C locale assumes ASCII as the default text encoding, which
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* causes problems not only for the CPython runtime, but also other
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* components like GNU readline.
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*
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* Accordingly, when the CLI detects it, it attempts to coerce it to a
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* more capable UTF-8 based alternative.
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*
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* See the documentation of the PYTHONCOERCECLOCALE setting for more details.
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*
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*/
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extern int _Py_LegacyLocaleDetected(void);
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extern void _Py_CoerceLegacyLocale(void);
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int
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main(int argc, char **argv)
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{
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wchar_t **argv_copy;
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/* We need a second copy, as Python might modify the first one. */
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wchar_t **argv_copy2;
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int i, res;
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char *oldloc;
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/* Force malloc() allocator to bootstrap Python */
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#ifdef Py_DEBUG
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(void)_PyMem_SetupAllocators("malloc_debug");
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# else
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(void)_PyMem_SetupAllocators("malloc");
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# endif
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argv_copy = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
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argv_copy2 = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
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if (!argv_copy || !argv_copy2) {
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fprintf(stderr, "out of memory\n");
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return 1;
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}
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/* 754 requires that FP exceptions run in "no stop" mode by default,
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* and until C vendors implement C99's ways to control FP exceptions,
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* Python requires non-stop mode. Alas, some platforms enable FP
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* exceptions by default. Here we disable them.
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*/
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#ifdef __FreeBSD__
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fedisableexcept(FE_OVERFLOW);
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#endif
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oldloc = _PyMem_RawStrdup(setlocale(LC_ALL, NULL));
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if (!oldloc) {
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fprintf(stderr, "out of memory\n");
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return 1;
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}
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#ifdef __ANDROID__
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/* Passing "" to setlocale() on Android requests the C locale rather
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* than checking environment variables, so request C.UTF-8 explicitly
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*/
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setlocale(LC_ALL, "C.UTF-8");
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#else
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/* Reconfigure the locale to the default for this process */
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setlocale(LC_ALL, "");
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#endif
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if (_Py_LegacyLocaleDetected()) {
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_Py_CoerceLegacyLocale();
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}
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/* Convert from char to wchar_t based on the locale settings */
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for (i = 0; i < argc; i++) {
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argv_copy[i] = Py_DecodeLocale(argv[i], NULL);
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if (!argv_copy[i]) {
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PyMem_RawFree(oldloc);
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fprintf(stderr, "Fatal Python error: "
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"unable to decode the command line argument #%i\n",
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i + 1);
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return 1;
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}
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argv_copy2[i] = argv_copy[i];
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}
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argv_copy2[argc] = argv_copy[argc] = NULL;
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setlocale(LC_ALL, oldloc);
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PyMem_RawFree(oldloc);
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res = Py_Main(argc, argv_copy);
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/* Force again malloc() allocator to release memory blocks allocated
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before Py_Main() */
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#ifdef Py_DEBUG
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(void)_PyMem_SetupAllocators("malloc_debug");
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# else
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(void)_PyMem_SetupAllocators("malloc");
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# endif
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for (i = 0; i < argc; i++) {
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PyMem_RawFree(argv_copy2[i]);
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}
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PyMem_RawFree(argv_copy);
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PyMem_RawFree(argv_copy2);
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return res;
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}
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#endif
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