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- /***********************************************************
- 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 <limits.h>
- #include <ctype.h>
- #ifdef macintosh
- char *strdup Py_PROTO((char *));
- #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=0;
- static PyObject* thousands_sep=0;
- static PyObject* decimal_point=0;
- /* if non-null, indicates that LC_NUMERIC is different from "C" */
- static char* saved_numeric=0;
-
- /* the grouping is terminated by either 0 or CHAR_MAX */
- static PyObject*
- copy_grouping(s)
- char* s;
- {
- int i;
- PyObject *result,*val=0;
- 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=0;
- break;
- }
- }while(s[i]!='\0' && s[i]!=CHAR_MAX);
- if(!val){
- Py_DECREF(result);
- return NULL;
- }
- return result;
- }
-
- static void
- fixup_ulcase()
- {
- PyObject *mods,*strop,*string,*ulo;
- unsigned char ul[256];
- int n,c;
-
- /* finding sys.modules */
- mods=PyImport_GetModuleDict();
- if(!mods)return;
- /* finding the module */
- 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 */
- 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 */
- 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 */
- 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(self,args)
- PyObject *self;
- PyObject *args;
- {
- int category;
- char *locale=0,*result;
- PyObject *result_object;
- struct lconv *lc;
- if(!PyArg_ParseTuple(args,"i|z:setlocale",&category,&locale))return 0;
- 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=0;
- }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(self,args)
- PyObject *self;
- PyObject *args;
- {
- PyObject* result;
- struct lconv *l;
- PyObject *x;
- if(!PyArg_NoArgs(args))return 0;
- result = PyDict_New();
- if(!result)return 0;
- /* 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(self,args)
- 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(self,args)
- PyObject* self;
- PyObject* args;
- {
- char *s,*buf;
- int 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;
- }
-
- static struct PyMethodDef PyLocale_Methods[] = {
- {"setlocale",(PyCFunction)PyLocale_setlocale,1,setlocale__doc__},
- {"localeconv",(PyCFunction)PyLocale_localeconv,0,localeconv__doc__},
- {"strcoll",(PyCFunction)PyLocale_strcoll,1,strcoll__doc__},
- {"strxfrm",(PyCFunction)PyLocale_strxfrm,1,strxfrm__doc__},
- {NULL, NULL}
- };
-
- DL_EXPORT(void)
- init_locale()
- {
- 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);
-
- if(PyErr_Occurred())
- Py_FatalError("Can't initialize module locale");
- }
-