Source

cpython-withatomic / Modules / _localemodule.c

The branch '2.0' does not exist.
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
/***********************************************************
Copyright (C) 1997 Martin von Loewis

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies.

This software comes with no warranty. Use at your own risk.

******************************************************************/

#include "Python.h"

#include <stdio.h>
#include <errno.h>
#include <locale.h>
#include <string.h>
#include <ctype.h>

#if defined(MS_WIN32)
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#endif

#ifdef macintosh
#include "macglue.h"
#endif

static char locale__doc__[] = "Support for POSIX locales.";

static PyObject *Error;

/* support functions for formatting floating point numbers */

static char setlocale__doc__[] =
"(integer,string=None) -> string. Activates/queries locale processing."
;

/* to record the LC_NUMERIC settings */
static PyObject* grouping = NULL;
static PyObject* thousands_sep = NULL;
static PyObject* decimal_point = NULL;
/* if non-null, indicates that LC_NUMERIC is different from "C" */
static char* saved_numeric = NULL;

/* the grouping is terminated by either 0 or CHAR_MAX */
static PyObject*
copy_grouping(char* s)
{
    int i;
    PyObject *result, *val = NULL;

    if (s[0] == '\0')
        /* empty string: no grouping at all */
        return PyList_New(0);

    for (i = 0; s[i] != '\0' && s[i] != CHAR_MAX; i++)
        ; /* nothing */

    result = PyList_New(i+1);
    if (!result)
        return NULL;

    i = -1;
    do {
        i++;
        val = PyInt_FromLong(s[i]);
        if (!val)
            break;
        if (PyList_SetItem(result, i, val)) {
            Py_DECREF(val);
            val = NULL;
            break;
        }
    } while (s[i] != '\0' && s[i] != CHAR_MAX);

    if (!val) {
        Py_DECREF(result);
        return NULL;
    }

    return result;
}

static void
fixup_ulcase(void)
{
    PyObject *mods, *strop, *string, *ulo;
    unsigned char ul[256];
    int n, c;

    /* find the string and strop modules */
    mods = PyImport_GetModuleDict();
    if (!mods)
        return;
    string = PyDict_GetItemString(mods, "string");
    if (string)
        string = PyModule_GetDict(string);
    strop=PyDict_GetItemString(mods, "strop");
    if (strop)
        strop = PyModule_GetDict(strop);
    if (!string && !strop)
        return;

    /* create uppercase map string */
    n = 0;
    for (c = 0; c < 256; c++) {
        if (isupper(c))
            ul[n++] = c;
    }
    ulo = PyString_FromStringAndSize((const char *)ul, n);
    if (!ulo)
        return;
    if (string)
        PyDict_SetItemString(string, "uppercase", ulo);
    if (strop)
        PyDict_SetItemString(strop, "uppercase", ulo);
    Py_DECREF(ulo);

    /* create lowercase string */
    n = 0;
    for (c = 0; c < 256; c++) {
        if (islower(c))
            ul[n++] = c;
    }
    ulo = PyString_FromStringAndSize((const char *)ul, n);
    if (!ulo)
        return;
    if (string)
        PyDict_SetItemString(string, "lowercase", ulo);
    if (strop)
        PyDict_SetItemString(strop, "lowercase", ulo);
    Py_DECREF(ulo);

    /* create letters string */
    n = 0;
    for (c = 0; c < 256; c++) {
        if (isalpha(c))
            ul[n++] = c;
    }
    ulo = PyString_FromStringAndSize((const char *)ul, n);
    if (!ulo)
        return;
    if (string)
        PyDict_SetItemString(string, "letters", ulo);
    Py_DECREF(ulo);
}
  

static PyObject*
PyLocale_setlocale(PyObject* self, PyObject* args)
{
    int category;
    char *locale = NULL, *result;
    PyObject *result_object;
    struct lconv *lc;

    if (!PyArg_ParseTuple(args, "i|z:setlocale", &category, &locale))
        return NULL;

    if (locale) {
        /* set locale */
        result = setlocale(category, locale);
        if (!result) {
            /* operation failed, no setting was changed */
            PyErr_SetString(Error, "locale setting not supported");
            return NULL;
        }
        result_object = PyString_FromString(result);
        if (!result)
            return NULL;
        /* record changes to LC_NUMERIC */
        if (category == LC_NUMERIC || category == LC_ALL) {
            if (strcmp(locale, "C") == 0 || strcmp(locale, "POSIX") == 0) {
                /* user just asked for default numeric locale */
                if (saved_numeric)
                    free(saved_numeric);
                saved_numeric = NULL;
            } else {
                /* remember values */
                lc = localeconv();
                Py_XDECREF(grouping);
                grouping = copy_grouping(lc->grouping);
                Py_XDECREF(thousands_sep);
                thousands_sep = PyString_FromString(lc->thousands_sep);
                Py_XDECREF(decimal_point);
                decimal_point = PyString_FromString(lc->decimal_point);
                saved_numeric = strdup(locale);
                /* restore to "C" */
                setlocale(LC_NUMERIC, "C");
            }
        }
        /* record changes to LC_CTYPE */
        if (category == LC_CTYPE || category == LC_ALL)
            fixup_ulcase();
        /* things that got wrong up to here are ignored */
        PyErr_Clear();
    } else {
        /* get locale */
        /* restore LC_NUMERIC first, if appropriate */
        if (saved_numeric)
            setlocale(LC_NUMERIC, saved_numeric);
        result = setlocale(category, NULL);
        if (!result) {
            PyErr_SetString(Error, "locale query failed");
            return NULL;
        }
        result_object = PyString_FromString(result);
        /* restore back to "C" */
        if (saved_numeric)
            setlocale(LC_NUMERIC, "C");
    }
    return result_object;
}

static char localeconv__doc__[] =
"() -> dict. Returns numeric and monetary locale-specific parameters."
;

static PyObject*
PyLocale_localeconv(PyObject* self, PyObject* args)
{
    PyObject* result;
    struct lconv *l;
    PyObject *x;

    if (!PyArg_NoArgs(args))
        return NULL;

    result = PyDict_New();
    if (!result)
        return NULL;

    /* if LC_NUMERIC is different in the C library, use saved value */
    l = localeconv();

    /* hopefully, the localeconv result survives the C library calls
       involved herein */

#define RESULT_STRING(s)\
    x = PyString_FromString(l->s);\
    if (!x) goto failed;\
    PyDict_SetItemString(result, #s, x);\
    Py_XDECREF(x)

#define RESULT_INT(i)\
    x = PyInt_FromLong(l->i);\
    if (!x) goto failed;\
    PyDict_SetItemString(result, #i, x);\
    Py_XDECREF(x)

    /* Numeric information */
    if (saved_numeric){
        /* cannot use localeconv results */
        PyDict_SetItemString(result, "decimal_point", decimal_point);
        PyDict_SetItemString(result, "grouping", grouping);
        PyDict_SetItemString(result, "thousands_sep", thousands_sep);
    } else {
        RESULT_STRING(decimal_point);
        RESULT_STRING(thousands_sep);
        x = copy_grouping(l->grouping);
        if (!x)
            goto failed;
        PyDict_SetItemString(result, "grouping", x);
        Py_XDECREF(x);
    }

    /* Monetary information */
    RESULT_STRING(int_curr_symbol);
    RESULT_STRING(currency_symbol);
    RESULT_STRING(mon_decimal_point);
    RESULT_STRING(mon_thousands_sep);
    x = copy_grouping(l->mon_grouping);
    if (!x)
        goto failed;
    PyDict_SetItemString(result, "mon_grouping", x);
    Py_XDECREF(x);
    RESULT_STRING(positive_sign);
    RESULT_STRING(negative_sign);
    RESULT_INT(int_frac_digits);
    RESULT_INT(frac_digits);
    RESULT_INT(p_cs_precedes);
    RESULT_INT(p_sep_by_space);
    RESULT_INT(n_cs_precedes);
    RESULT_INT(n_sep_by_space);
    RESULT_INT(p_sign_posn);
    RESULT_INT(n_sign_posn);
    return result;

  failed:
    Py_XDECREF(result);
    Py_XDECREF(x);
    return NULL;
}

static char strcoll__doc__[] =
"string,string -> int. Compares two strings according to the locale."
;

static PyObject*
PyLocale_strcoll(PyObject* self, PyObject* args)
{
  char *s1,*s2;

  if (!PyArg_ParseTuple(args, "ss:strcoll", &s1, &s2))
      return NULL;
  return PyInt_FromLong(strcoll(s1, s2));
}

static char strxfrm__doc__[] =
"string -> string. Returns a string that behaves for cmp locale-aware."
;

static PyObject*
PyLocale_strxfrm(PyObject* self, PyObject* args)
{
    char *s, *buf;
    size_t n1, n2;
    PyObject *result;

    if (!PyArg_ParseTuple(args, "s:strxfrm", &s))
        return NULL;

    /* assume no change in size, first */
    n1 = strlen(s) + 1;
    buf = PyMem_Malloc(n1);
    if (!buf)
        return PyErr_NoMemory();
    n2 = strxfrm(buf, s, n1);
    if (n2 > n1) {
        /* more space needed */
        buf = PyMem_Realloc(buf, n2);
        if (!buf)
            return PyErr_NoMemory();
        strxfrm(buf, s, n2);
    }
    result = PyString_FromString(buf);
    PyMem_Free(buf);
    return result;
}

#if defined(MS_WIN32)
static PyObject*
PyLocale_getdefaultlocale(PyObject* self, PyObject* args)
{
    char encoding[100];
    char locale[100];

    if (!PyArg_NoArgs(args))
        return NULL;

    sprintf(encoding, "cp%d", GetACP());

    if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                      LOCALE_SISO639LANGNAME,
                      locale, sizeof(locale))) {
        int i = strlen(locale);
        locale[i++] = '_';
        if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                          LOCALE_SISO3166CTRYNAME,
                          locale+i, sizeof(locale)-i))
            return Py_BuildValue("ss", locale, encoding);
    }

    /* If we end up here, this windows version didn't know about
       ISO639/ISO3166 names (it's probably Windows 95).  Return the
       Windows language identifier instead (a hexadecimal number) */

    locale[0] = '0';
    locale[1] = 'x';
    if (GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_IDEFAULTLANGUAGE,
                      locale+2, sizeof(locale)-2)) {
        return Py_BuildValue("ss", locale, encoding);
    }

    /* cannot determine the language code (very unlikely) */
    Py_INCREF(Py_None);
    return Py_BuildValue("Os", Py_None, encoding);
}
#endif

#if defined(macintosh)
static PyObject*
PyLocale_getdefaultlocale(PyObject* self, PyObject* args)
{
    return Py_BuildValue("Os", Py_None, PyMac_getscript());
}
#endif

static struct PyMethodDef PyLocale_Methods[] = {
  {"setlocale", (PyCFunction) PyLocale_setlocale, 
   METH_VARARGS, setlocale__doc__},
  {"localeconv", (PyCFunction) PyLocale_localeconv, 
   0, localeconv__doc__},
  {"strcoll", (PyCFunction) PyLocale_strcoll, 
   METH_VARARGS, strcoll__doc__},
  {"strxfrm", (PyCFunction) PyLocale_strxfrm, 
   METH_VARARGS, strxfrm__doc__},
#if defined(MS_WIN32) || defined(macintosh)
  {"_getdefaultlocale", (PyCFunction) PyLocale_getdefaultlocale, 0},
#endif
  {NULL, NULL}
};

DL_EXPORT(void)
init_locale(void)
{
    PyObject *m, *d, *x;

    m = Py_InitModule("_locale", PyLocale_Methods);

    d = PyModule_GetDict(m);

    x = PyInt_FromLong(LC_CTYPE);
    PyDict_SetItemString(d, "LC_CTYPE", x);
    Py_XDECREF(x);

    x = PyInt_FromLong(LC_TIME);
    PyDict_SetItemString(d, "LC_TIME", x);
    Py_XDECREF(x);

    x = PyInt_FromLong(LC_COLLATE);
    PyDict_SetItemString(d, "LC_COLLATE", x);
    Py_XDECREF(x);

    x = PyInt_FromLong(LC_MONETARY);
    PyDict_SetItemString(d, "LC_MONETARY", x);
    Py_XDECREF(x);

#ifdef LC_MESSAGES
    x = PyInt_FromLong(LC_MESSAGES);
    PyDict_SetItemString(d, "LC_MESSAGES", x);
    Py_XDECREF(x);
#endif /* LC_MESSAGES */

    x = PyInt_FromLong(LC_NUMERIC);
    PyDict_SetItemString(d, "LC_NUMERIC", x);
    Py_XDECREF(x);

    x = PyInt_FromLong(LC_ALL);
    PyDict_SetItemString(d, "LC_ALL", x);
    Py_XDECREF(x);

    x = PyInt_FromLong(CHAR_MAX);
    PyDict_SetItemString(d, "CHAR_MAX", x);
    Py_XDECREF(x);

    Error = PyErr_NewException("locale.Error", NULL, NULL);
    PyDict_SetItemString(d, "Error", Error);

    x = PyString_FromString(locale__doc__);
    PyDict_SetItemString(d, "__doc__", x);
    Py_XDECREF(x);
}
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.