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/* locale.c -- locale module.
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Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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National Institute of Advanced Industrial Science and Technology (AIST)
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Registration Number H15PRO112
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This file is part of the m17n library.
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The m17n library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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as published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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The m17n library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the m17n library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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@addtogroup m17nLocale
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@brief Locale objects and API for them.
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The m17n library represents locale related information as objects
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@addtogroup m17nLocale
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@brief �������륪�֥������ȤȤ���˴ؤ��� API.
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m17n �饤�֥��ϥ��������Ϣ����� #MLocale ���Υ��֥������Ȥ�ɽ�����롣 */
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#if !defined (FOR_DOXYGEN) || defined (DOXYGEN_INTERNAL_MODULE)
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/*** @addtogroup m17nInternal
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#ifdef HAVE_LANGINFO_H
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#include "m17n-misc.h"
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static MSymbol M_locale;
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static MSymbol M_xfrm;
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/** Structure of locales. */
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/** The current locales of each category. */
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MLocale *mlocale__collate, *mlocale__ctype;
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MLocale *mlocale__messages, *mlocale__time;
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/* These are currently not used. */
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MLocale *mlocale_monetary, *mlocale_numeric, ;
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/** Parse locale name NAME and return a newly created MLocale object.
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If the locale is not supported by the system, return NULL. */
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make_locale (const char *name)
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char *current, *new, *str;
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str = setlocale (LC_CTYPE, NULL);
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len = strlen (str) + 1;
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current = alloca (len);
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memcpy (current, str, len);
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if (! (new = setlocale (LC_CTYPE, name)))
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M17N_OBJECT (locale, NULL, MERROR_LOCALE);
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locale->name = msymbol (new);
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msymbol_put (locale->name, M_locale, (void *) locale);
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M17N_OBJECT_UNREF (locale);
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len = strlen (new) + 1;
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memcpy (str, new, len);
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for (i = 0; str[i]; i++)
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if (str[i] == '_' || str[i] == '.' || str[i] == '@')
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/* The first field is for language. */
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locale->language = msymbol (str);
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/* The field following '_' is for territory. */
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locale->territory = msymbol (str);
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/* The field following '.' is for codeset. */
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locale->codeset = msymbol (str);
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/* The other field is for modifier. */
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locale->modifier = msymbol (str);
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#ifdef HAVE_NL_LANGINFO
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/* If we can use nl_langinfo () to retrieve a codeset name, respect
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it over the codeset name extracted from the locale name. */
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locale->codeset = msymbol (nl_langinfo (CODESET));
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/* If the locale name specifies a codeset, get the corresponding
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if (locale->codeset != Mnil)
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locale->coding = mconv_resolve_coding (locale->codeset);
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if (locale->coding == Mnil)
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locale->coding = Mcoding_us_ascii;
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locale->coding = Mcoding_us_ascii;
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setlocale (LC_CTYPE, current);
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/** Decode the byte sequence at BUF of length SIZE bytes by the coding
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system associated with LOCALE, and return a generated M-text. */
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decode_locale (unsigned char *buf, int size, MLocale *locale)
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return mconv_decode_buffer (locale->coding, buf, size);
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/** Encode the M-text MT by the coding system associated with LOCALE,
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and store the resulting bytes in the memory area at BUF of *SIZE
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bytes. If the area is too short, allocate a new and wider area.
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Store the length of the generated bytes in the place pointed by
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SIZE, and return the address of those bytes. */
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static unsigned char *
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encode_locale (MText *mt, unsigned char *buf, int *size, MLocale *locale)
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int nbytes = mconv_encode_buffer (locale->coding, mt, buf, *size - 1);
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MTABLE_REALLOC (buf, *size, MERROR_LOCALE);
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nbytes = mconv_encode_buffer (mlocale__ctype->coding, mt, buf,
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} while (nbytes < 0);
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/** Structure of transformed strings. The function mtext_coll ()
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caches this object in an M-text as a text property. */
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/* Common header for a managed object. */
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/* Locale corresponding to <str>. */
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/** Result of strxfrm. */
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free_xfrm (void *object)
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MXfrm *xfrm = (MXfrm *) object;
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M17N_OBJECT_UNREF (xfrm->locale);
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MTextProperty *prop = mtext_get_property (mt, 0, M_xfrm);
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unsigned char *buf, *newbuf;
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if (prop->end == mt->nchars)
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xfrm = (MXfrm *) prop->val;
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if (xfrm->locale == mlocale__ctype)
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mtext_detach_property (prop);
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newbuf = encode_locale (mt, buf, &size, mlocale__ctype);
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M17N_OBJECT (xfrm, free_xfrm, MERROR_MTEXT);
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xfrm->str = malloc (size);
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request = strxfrm (xfrm->str, (char *) newbuf, size);
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xfrm->str = realloc (xfrm->str, request);
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strxfrm (xfrm->str, (char *) newbuf, size);
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prop = mtext_property (M_xfrm, xfrm, MTEXTPROP_VOLATILE_WEAK);
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mtext_attach_property (mt, 0, mt->nchars, prop);
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M17N_OBJECT_UNREF (prop);
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M_locale = msymbol_as_managing_key (" locale");
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Mterritory = msymbol ("territory");
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Mcodeset = msymbol ("codeset");
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mlocale__collate = mlocale_set (LC_COLLATE, NULL);
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M17N_OBJECT_REF (mlocale__collate);
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mlocale__ctype = mlocale_set (LC_CTYPE, NULL);
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M17N_OBJECT_REF (mlocale__ctype);
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mlocale__messages = mlocale_set (LC_MESSAGES, NULL);
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M17N_OBJECT_REF (mlocale__messages);
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mlocale__time = mlocale_set (LC_TIME, NULL);
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M17N_OBJECT_REF (mlocale__time);
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M_xfrm = msymbol_as_managing_key (" xfrm");
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M17N_OBJECT_UNREF (mlocale__collate);
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M17N_OBJECT_UNREF (mlocale__ctype);
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M17N_OBJECT_UNREF (mlocale__messages);
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M17N_OBJECT_UNREF (mlocale__time);
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#endif /* !FOR_DOXYGEN || DOXYGEN_INTERNAL_MODULE */
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/*** @addtogroup m17nLocale */
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/***en The symbol whose name is "territory". */
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/***ja "territory" �Ȥ���̾������ĥ���ܥ�. */
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/***en The symbol whose name is "modifier". */
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/***ja "modifier" �Ȥ���̾������ĥ���ܥ�. */
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/***en The symbol whose name is "codeset". */
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/***ja "codeset" �Ȥ���̾������ĥ���ܥ�. */
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@brief Set the current locale.
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The mlocale_set () function sets or query a part of the current
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locale. The part is specified by $CATEGORY which must be a valid
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first argument to <tt>setlocale ()</tt>.
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If $LOCALE is not NULL, the locale of the specified part is set to
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$LOCALE. If $LOCALE is not supported by the system, the current
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locale is not changed.
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If $LOCALE is NULL, the current locale of the specified part is
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If the call is successful, mlocale_set () returns an opaque locale
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object that corresponds to the locale. The name of the locale can
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be acquired by the function mlocale_get_prop ().
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Otherwise, it returns NULL. */
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@brief ���ߤΥ�����������ꤹ��.
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�ؿ� mlocale_set () �ϸ��ߤΥ�������ΰ��������ꤷ�����䤤��碌���ꤹ�롣�����ǰ����Ȥ�
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$CATEGORY �ǻ��ꤵ�졢<tt>setlocale ()</tt> ��ͭ�����������Ȥʤ��ΤǤʤ��ƤϤʤ�ʤ���
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$LOCALE �� NULL �Ǥʤ���С����ꤷ����ʬ�Υ������뤬$LOCALE �����ꤵ��롣
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$LOCALE �������ƥ�˥��ݡ��Ȥ���Ƥ��ʤ���С�����ϹԤ�줺�����ߤΥ���������Ѥ��ʤ���
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$LOCALE �� NULL �ʤ�С����ߤΥ�������λ��ꤷ����ʬ���䤤��碌�롣
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�ƤӽФ�����������С�mlocale_set () �ϥ���������б����� opaque
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�������륪�֥������Ȥ��֤������������̾���ϴؿ�
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mlocale_get_prop () �ˤ�ä����뤳�Ȥ��Ǥ��롣
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�����Ǥʤ���� NULL ���֤���
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mlocale_set (int category, const char *name)
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new = setlocale (category, name);
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locale = (MLocale *) msymbol_get (msymbol (new), M_locale);
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locale = make_locale (new);
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if (name && (category == LC_ALL || category == LC_COLLATE))
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M17N_OBJECT_REF (locale);
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M17N_OBJECT_UNREF (mlocale__collate);
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mlocale__collate = locale;
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else if (name && (category == LC_ALL || category == LC_CTYPE))
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M17N_OBJECT_REF (locale);
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M17N_OBJECT_UNREF (mlocale__ctype);
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mlocale__ctype = locale;
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if (name && (category == LC_ALL || category == LC_MESSAGES))
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M17N_OBJECT_REF (locale);
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M17N_OBJECT_UNREF (mlocale__messages);
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mlocale__messages = locale;
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if (name && (category == LC_ALL || category == LC_TIME))
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M17N_OBJECT_REF (locale);
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M17N_OBJECT_UNREF (mlocale__time);
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mlocale__time = locale;
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@brief Get the value of a locale property.
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The mlocale_get_prop () function returns the value of a property
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$KEY of local $LOCALE. $KEY must be #Mname, #Mlanguage,
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#Mterritory, #Mcodeset, #Mmodifier, or #Mcoding. */
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@brief ��������ץ��ѥƥ����ͤ�����.
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�ؿ� mlocale_get_prop () �ϡ��������� $LOCALE �� $KEY �ץ��ѥƥ����ͤ��֤���
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$KEY �� #Mname, #Mlanguage, #Mterritory, #Mcodeset, #Mmodifier,
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#Mcoding �Τ����줫�Ǥ��롣 */
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mlocale_get_prop (MLocale *locale, MSymbol key)
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return locale->coding;
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if (key == Mlanguage)
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return locale->language;
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if (key == Mterritory)
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return locale->territory;
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return locale->codeset;
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if (key == Mmodifier)
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return locale->modifier;
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@brief Format date and time.
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The mtext_ftime () function formats the broken-down time $TM
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according to the format specification $FORMAT and append the
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result to the M-text $MT. The formating is done according to the
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locale $LOCALE (if not NULL) or the current locale (LC_TIME).
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The meaning of the arguments $TM and $FORMAT are the same as those
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@brief ���դȻ��֤�ե����ޥåȤ���.
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�ؿ� mtext_ftime () �ϻ���ǡ��� (broken-down time) $TM ��$FORMAT
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�ǻ��ꤵ�줿������������̤�M-text $MT ���ղä��롣�ե����ޥåȤ�
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NULL �Ǥʤ���� �������� $LOCALE �ˡ��ޤ��ϸ��ߤΥ�������(LC_TIME) �˽�����
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���� $TM �� $FORMAT �ΰ�̣�� strftime () �ξ���Ʊ����
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mtext_ftime (MText *mt, const char *format, const struct tm *tm,
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size_t nbytes, nchars;
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char *current_locale = NULL;
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char *str = setlocale (LC_TIME, NULL);
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int len = strlen (str) + 1;
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current_locale = alloca (len);
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memcpy (current_locale, str, len);
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mlocale_set (LC_TIME, msymbol_name (locale->name));
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MTABLE_ALLOCA (buf, bufsize, MERROR_MTEXT);
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nbytes = strftime ((char *) buf, bufsize, format, tm);
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MText *work = decode_locale (buf, nbytes, mlocale__time);
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nchars = work->nchars;
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mtext_cat (mt, work);
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M17N_OBJECT_UNREF (work);
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mlocale_set (LC_TIME, current_locale);
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@brief Get an environment variable.
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The mtext_getenv () function searches the environment variable
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list for a string that matches the string pointed to by $NAME.
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If there is a match, the function decodes the value according to
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the current locale (LC_CTYPE) into an M-text, and return that
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If there is no match, the function returns NULL. */
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�ؿ� mtext_getenv () �� $NAME
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�ǻؤ����ʸ����ȹ��פ���ʸ�����Ķ��ѿ��Υꥹ���椫��õ����
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���Ĥ��ä����ˤϡ������ͤߤΥ�������(LC_CTYPE) �˽��ä�
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M-text �˥ǥ����ɤ�������M-text ���֤���
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���Ĥ���ʤ���С�NULL ���֤��� */
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mtext_getenv (const char *name)
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char *p = getenv (name);
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return decode_locale ((unsigned char *) p, strlen (p), mlocale__ctype);
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@brief Change or add an environment variable.
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The mtext_putenv () function changes or adds the value of
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environment variables according to M-text $MT. It calls the
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function <tt>putenv</tt> with an argument generated by encoding
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$MT according to the current locale (LC_CTYPE).
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This function returns zero on success, or -1 if an error
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@brief �Ķ��ѿ����ѹ����ɲä���.
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�ؿ� mtext_putenv () �� M-text $MT
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�˽��äơ��Ķ��ѿ����ͤ��ѹ��������ɲä����ꤹ�롣���δؿ��ϡ����ߤΥ�������
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(LC_CTYPE) �˽��ä�$MT ���ɤ������������Ȥ��ƴؿ� <tt>putenv</tt> ��Ƥ֡�
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���δؿ��ϡ������������ˤ� 0 ���顼��������� -1 ���֤���
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mtext_putenv (MText *mt)
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unsigned char buf[1024];
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unsigned char *newbuf;
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newbuf = encode_locale (mt, buf, &size, mlocale__ctype);
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result = putenv ((char *) newbuf);
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@brief Compare two M-texts using the current locale.
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The mtext_coll () function compares the two M-texts $MT1 and $MT2.
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It returns an integer less than, equal to, or greater than zero if
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$MT1 is found, respectively, to be less than, to match, or to be
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greater than $MT2. The comparison is based on texts as
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appropriate for the current locale (LC_COLLATE).
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This function makes use of information that is automatically
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cached in the M-texts as a text property. So, the second call of
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this function with $MT1 or $MT2 finishes faster than the first
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@brief ���ߤΥ���������Ѥ��ƣ��Ĥ� M-text ����Ӥ���.
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�ؿ� mtext_coll () �ϣ��Ĥ� M-text $MT1 �� $MT2
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����Ӥ��롣����ͤ����������, 0, ���������ͤΤ����줫�Ǥ��ꡢ���줾��
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$MT1 �� $MT2 ��꾮������Ʊ�����礭�������������롣��Ӥϸ��ߤΥ�������
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(LC_COLLATE) �˴�Ť��ƹԤ��롣
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�Υƥ����ȥץ��ѥƥ��Ȥ��Ƽ�ưŪ�˥���å��夵����������Ѥ���Τǡ������ܰʹߤ�Ʊ����Ӥϣ����ܤ��®���¹Ԥ���롣 */
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mtext_coll (MText *mt1, MText *mt2)
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if (mt1->nchars == 0)
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return (mt2->nchars == 0 ? 0 : -1);
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else if (mt2->nchars == 0)
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str1 = get_xfrm (mt1);
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str2 = get_xfrm (mt2);
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return strcoll (str1, str2);
added
removed
.pc/locale.c.patch/src/locale.c
