mirror of
https://github.com/reactos/reactos.git
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517 lines
14 KiB
C
517 lines
14 KiB
C
/*
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* xsltlocale.c: locale handling
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*
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* Reference:
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* RFC 3066: Tags for the Identification of Languages
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* http://www.ietf.org/rfc/rfc3066.txt
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* ISO 639-1, ISO 3166-1
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*
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* Author: Nick Wellnhofer
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* winapi port: Roumen Petrov
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*/
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#include "precomp.h"
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#include "xsltlocale.h"
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#define TOUPPER(c) (c & ~0x20)
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#define TOLOWER(c) (c | 0x20)
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#define ISALPHA(c) ((unsigned)(TOUPPER(c) - 'A') < 26)
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/*without terminating null character*/
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#define XSLTMAX_ISO639LANGLEN 8
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#define XSLTMAX_ISO3166CNTRYLEN 8
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/* <lang>-<cntry> */
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#define XSLTMAX_LANGTAGLEN (XSLTMAX_ISO639LANGLEN+1+XSLTMAX_ISO3166CNTRYLEN)
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static const xmlChar* xsltDefaultRegion(const xmlChar *localeName);
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#ifdef XSLT_LOCALE_WINAPI
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xmlRMutexPtr xsltLocaleMutex = NULL;
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struct xsltRFC1766Info_s {
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/*note typedef unsigned char xmlChar !*/
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xmlChar tag[XSLTMAX_LANGTAGLEN+1];
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/*note typedef LCID xsltLocale !*/
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xsltLocale lcid;
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};
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typedef struct xsltRFC1766Info_s xsltRFC1766Info;
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static int xsltLocaleListSize = 0;
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static xsltRFC1766Info *xsltLocaleList = NULL;
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static xsltLocale
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xslt_locale_WINAPI(const xmlChar *languageTag) {
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int k;
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xsltRFC1766Info *p = xsltLocaleList;
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for (k=0; k<xsltLocaleListSize; k++, p++)
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if (xmlStrcmp(p->tag, languageTag) == 0) return p->lcid;
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return((xsltLocale)0);
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}
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static void xsltEnumSupportedLocales(void);
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#endif
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/**
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* xsltFreeLocales:
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*
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* Cleanup function for the locale support on shutdown
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*/
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void
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xsltFreeLocales(void) {
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#ifdef XSLT_LOCALE_WINAPI
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xmlRMutexLock(xsltLocaleMutex);
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xmlFree(xsltLocaleList);
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xsltLocaleList = NULL;
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xmlRMutexUnlock(xsltLocaleMutex);
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#endif
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}
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/**
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* xsltNewLocale:
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* @languageTag: RFC 3066 language tag
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*
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* Creates a new locale of an opaque system dependent type based on the
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* language tag.
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*
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* Returns the locale or NULL on error or if no matching locale was found
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*/
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xsltLocale
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xsltNewLocale(const xmlChar *languageTag) {
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#ifdef XSLT_LOCALE_POSIX
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xsltLocale locale;
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char localeName[XSLTMAX_LANGTAGLEN+6]; /* 6 chars for ".utf8\0" */
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const xmlChar *p = languageTag;
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const char *region = NULL;
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char *q = localeName;
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int i, llen;
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/* Convert something like "pt-br" to "pt_BR.utf8" */
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if (languageTag == NULL)
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return(NULL);
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for (i=0; i<XSLTMAX_ISO639LANGLEN && ISALPHA(*p); ++i)
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*q++ = TOLOWER(*p++);
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if (i == 0)
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return(NULL);
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llen = i;
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if (*p) {
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if (*p++ != '-')
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return(NULL);
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*q++ = '_';
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for (i=0; i<XSLTMAX_ISO3166CNTRYLEN && ISALPHA(*p); ++i)
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*q++ = TOUPPER(*p++);
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if (i == 0 || *p)
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return(NULL);
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memcpy(q, ".utf8", 6);
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locale = newlocale(LC_COLLATE_MASK, localeName, NULL);
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if (locale != NULL)
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return(locale);
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/* Continue without using country code */
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q = localeName + llen;
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}
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/* Try locale without territory, e.g. for Esperanto (eo) */
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memcpy(q, ".utf8", 6);
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locale = newlocale(LC_COLLATE_MASK, localeName, NULL);
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if (locale != NULL)
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return(locale);
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/* Try to find most common country for language */
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if (llen != 2)
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return(NULL);
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region = (char *)xsltDefaultRegion((xmlChar *)localeName);
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if (region == NULL)
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return(NULL);
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q = localeName + llen;
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*q++ = '_';
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*q++ = region[0];
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*q++ = region[1];
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memcpy(q, ".utf8", 6);
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locale = newlocale(LC_COLLATE_MASK, localeName, NULL);
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return(locale);
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#endif
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#ifdef XSLT_LOCALE_WINAPI
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{
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xsltLocale locale = (xsltLocale)0;
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xmlChar localeName[XSLTMAX_LANGTAGLEN+1];
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xmlChar *q = localeName;
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const xmlChar *p = languageTag;
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int i, llen;
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const xmlChar *region = NULL;
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if (languageTag == NULL) goto end;
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xsltEnumSupportedLocales();
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for (i=0; i<XSLTMAX_ISO639LANGLEN && ISALPHA(*p); ++i)
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*q++ = TOLOWER(*p++);
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if (i == 0) goto end;
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llen = i;
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*q++ = '-';
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if (*p) { /*if country tag is given*/
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if (*p++ != '-') goto end;
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for (i=0; i<XSLTMAX_ISO3166CNTRYLEN && ISALPHA(*p); ++i)
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*q++ = TOUPPER(*p++);
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if (i == 0 || *p) goto end;
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*q = '\0';
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locale = xslt_locale_WINAPI(localeName);
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if (locale != (xsltLocale)0) goto end;
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}
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/* Try to find most common country for language */
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region = xsltDefaultRegion(localeName);
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if (region == NULL) goto end;
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strcpy((char *) localeName + llen + 1, (char *) region);
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locale = xslt_locale_WINAPI(localeName);
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end:
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return(locale);
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}
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#endif
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#ifdef XSLT_LOCALE_NONE
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return(NULL);
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#endif
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}
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static const xmlChar*
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xsltDefaultRegion(const xmlChar *localeName) {
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xmlChar c;
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/* region should be xmlChar, but gcc warns on all string assignments */
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const char *region = NULL;
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c = localeName[1];
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/* This is based on the locales from glibc 2.3.3 */
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switch (localeName[0]) {
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case 'a':
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if (c == 'a' || c == 'm') region = "ET";
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else if (c == 'f') region = "ZA";
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else if (c == 'n') region = "ES";
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else if (c == 'r') region = "AE";
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else if (c == 'z') region = "AZ";
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break;
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case 'b':
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if (c == 'e') region = "BY";
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else if (c == 'g') region = "BG";
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else if (c == 'n') region = "BD";
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else if (c == 'r') region = "FR";
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else if (c == 's') region = "BA";
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break;
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case 'c':
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if (c == 'a') region = "ES";
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else if (c == 's') region = "CZ";
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else if (c == 'y') region = "GB";
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break;
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case 'd':
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if (c == 'a') region = "DK";
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else if (c == 'e') region = "DE";
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break;
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case 'e':
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if (c == 'l') region = "GR";
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else if (c == 'n' || c == 'o') region = "US";
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else if (c == 's' || c == 'u') region = "ES";
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else if (c == 't') region = "EE";
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break;
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case 'f':
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if (c == 'a') region = "IR";
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else if (c == 'i') region = "FI";
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else if (c == 'o') region = "FO";
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else if (c == 'r') region = "FR";
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break;
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case 'g':
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if (c == 'a') region = "IE";
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else if (c == 'l') region = "ES";
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else if (c == 'v') region = "GB";
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break;
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case 'h':
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if (c == 'e') region = "IL";
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else if (c == 'i') region = "IN";
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else if (c == 'r') region = "HT";
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else if (c == 'u') region = "HU";
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break;
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case 'i':
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if (c == 'd') region = "ID";
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else if (c == 's') region = "IS";
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else if (c == 't') region = "IT";
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else if (c == 'w') region = "IL";
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break;
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case 'j':
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if (c == 'a') region = "JP";
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break;
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case 'k':
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if (c == 'l') region = "GL";
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else if (c == 'o') region = "KR";
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else if (c == 'w') region = "GB";
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break;
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case 'l':
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if (c == 't') region = "LT";
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else if (c == 'v') region = "LV";
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break;
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case 'm':
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if (c == 'k') region = "MK";
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else if (c == 'l' || c == 'r') region = "IN";
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else if (c == 'n') region = "MN";
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else if (c == 's') region = "MY";
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else if (c == 't') region = "MT";
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break;
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case 'n':
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if (c == 'b' || c == 'n' || c == 'o') region = "NO";
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else if (c == 'e') region = "NP";
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else if (c == 'l') region = "NL";
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break;
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case 'o':
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if (c == 'm') region = "ET";
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break;
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case 'p':
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if (c == 'a') region = "IN";
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else if (c == 'l') region = "PL";
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else if (c == 't') region = "PT";
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break;
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case 'r':
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if (c == 'o') region = "RO";
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else if (c == 'u') region = "RU";
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break;
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case 's':
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switch (c) {
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case 'e': region = "NO"; break;
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case 'h': region = "YU"; break;
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case 'k': region = "SK"; break;
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case 'l': region = "SI"; break;
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case 'o': region = "ET"; break;
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case 'q': region = "AL"; break;
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case 't': region = "ZA"; break;
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case 'v': region = "SE"; break;
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}
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break;
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case 't':
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if (c == 'a' || c == 'e') region = "IN";
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else if (c == 'h') region = "TH";
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else if (c == 'i') region = "ER";
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else if (c == 'r') region = "TR";
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else if (c == 't') region = "RU";
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break;
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case 'u':
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if (c == 'k') region = "UA";
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else if (c == 'r') region = "PK";
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break;
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case 'v':
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if (c == 'i') region = "VN";
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break;
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case 'w':
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if (c == 'a') region = "BE";
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break;
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case 'x':
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if (c == 'h') region = "ZA";
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break;
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case 'z':
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if (c == 'h') region = "CN";
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else if (c == 'u') region = "ZA";
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break;
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}
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return((xmlChar *)region);
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}
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/**
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* xsltFreeLocale:
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* @locale: the locale to free
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*
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* Frees a locale created with xsltNewLocale
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*/
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void
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xsltFreeLocale(xsltLocale locale) {
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#ifdef XSLT_LOCALE_POSIX
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if (locale != NULL)
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freelocale(locale);
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#endif
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}
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/**
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* xsltStrxfrm:
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* @locale: locale created with xsltNewLocale
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* @string: UTF-8 string to transform
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*
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* Transforms a string according to locale. The transformed string must then be
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* compared with xsltLocaleStrcmp and freed with xmlFree.
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*
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* Returns the transformed string or NULL on error
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*/
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xsltLocaleChar *
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xsltStrxfrm(xsltLocale locale, const xmlChar *string)
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{
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#ifdef XSLT_LOCALE_NONE
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return(NULL);
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#else
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size_t xstrlen, r;
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xsltLocaleChar *xstr;
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#ifdef XSLT_LOCALE_POSIX
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xstrlen = strxfrm_l(NULL, (const char *)string, 0, locale) + 1;
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xstr = (xsltLocaleChar *) xmlMalloc(xstrlen);
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if (xstr == NULL) {
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xsltTransformError(NULL, NULL, NULL,
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"xsltStrxfrm : out of memory error\n");
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return(NULL);
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}
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r = strxfrm_l((char *)xstr, (const char *)string, xstrlen, locale);
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#endif
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#ifdef XSLT_LOCALE_WINAPI
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xstrlen = MultiByteToWideChar(CP_UTF8, 0, (char *) string, -1, NULL, 0);
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if (xstrlen == 0) {
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xsltTransformError(NULL, NULL, NULL, "xsltStrxfrm : MultiByteToWideChar check failed\n");
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return(NULL);
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}
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xstr = (xsltLocaleChar*) xmlMalloc(xstrlen * sizeof(xsltLocaleChar));
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if (xstr == NULL) {
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xsltTransformError(NULL, NULL, NULL, "xsltStrxfrm : out of memory\n");
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return(NULL);
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}
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r = MultiByteToWideChar(CP_UTF8, 0, (char *) string, -1, xstr, xstrlen);
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if (r == 0) {
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xsltTransformError(NULL, NULL, NULL, "xsltStrxfrm : MultiByteToWideChar failed\n");
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xmlFree(xstr);
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return(NULL);
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}
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return(xstr);
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#endif /* XSLT_LOCALE_WINAPI */
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if (r >= xstrlen) {
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xsltTransformError(NULL, NULL, NULL, "xsltStrxfrm : strxfrm failed\n");
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xmlFree(xstr);
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return(NULL);
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}
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return(xstr);
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#endif /* XSLT_LOCALE_NONE */
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}
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/**
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* xsltLocaleStrcmp:
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* @locale: a locale identifier
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* @str1: a string transformed with xsltStrxfrm
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* @str2: a string transformed with xsltStrxfrm
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*
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* Compares two strings transformed with xsltStrxfrm
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*
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* Returns a value < 0 if str1 sorts before str2,
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* a value > 0 if str1 sorts after str2,
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* 0 if str1 and str2 are equal wrt sorting
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*/
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int
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xsltLocaleStrcmp(xsltLocale locale, const xsltLocaleChar *str1, const xsltLocaleChar *str2) {
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(void)locale;
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#ifdef XSLT_LOCALE_WINAPI
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{
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int ret;
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if (str1 == str2) return(0);
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if (str1 == NULL) return(-1);
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if (str2 == NULL) return(1);
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ret = CompareStringW(locale, 0, str1, -1, str2, -1);
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if (ret == 0) {
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xsltTransformError(NULL, NULL, NULL, "xsltLocaleStrcmp : CompareStringW fail\n");
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return(0);
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}
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return(ret - 2);
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}
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#else
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return(xmlStrcmp(str1, str2));
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#endif
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}
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#ifdef XSLT_LOCALE_WINAPI
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/**
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* xsltCountSupportedLocales:
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* @lcid: not used
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*
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* callback used to count locales
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*
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* Returns TRUE
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*/
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BOOL CALLBACK
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xsltCountSupportedLocales(LPSTR lcid) {
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(void) lcid;
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++xsltLocaleListSize;
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return(TRUE);
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}
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/**
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* xsltIterateSupportedLocales:
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* @lcid: not used
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*
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* callback used to track locales
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*
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* Returns TRUE if not at the end of the array
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*/
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BOOL CALLBACK
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xsltIterateSupportedLocales(LPSTR lcid) {
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static int count = 0;
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xmlChar iso639lang [XSLTMAX_ISO639LANGLEN +1];
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xmlChar iso3136ctry[XSLTMAX_ISO3166CNTRYLEN+1];
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int k, l;
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xsltRFC1766Info *p = xsltLocaleList + count;
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k = sscanf(lcid, "%lx", (long*)&p->lcid);
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if (k < 1) goto end;
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/*don't count terminating null character*/
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k = GetLocaleInfoA(p->lcid, LOCALE_SISO639LANGNAME,
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(char *) iso639lang, sizeof(iso639lang));
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if (--k < 1) goto end;
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l = GetLocaleInfoA(p->lcid, LOCALE_SISO3166CTRYNAME,
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(char *) iso3136ctry, sizeof(iso3136ctry));
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if (--l < 1) goto end;
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{ /*fill results*/
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xmlChar *q = p->tag;
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memcpy(q, iso639lang, k);
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q += k;
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*q++ = '-';
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memcpy(q, iso3136ctry, l);
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q += l;
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*q = '\0';
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}
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++count;
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end:
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return((count < xsltLocaleListSize) ? TRUE : FALSE);
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}
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static void
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xsltEnumSupportedLocales(void) {
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xmlRMutexLock(xsltLocaleMutex);
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if (xsltLocaleListSize <= 0) {
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size_t len;
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EnumSystemLocalesA(xsltCountSupportedLocales, LCID_SUPPORTED);
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len = xsltLocaleListSize * sizeof(xsltRFC1766Info);
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xsltLocaleList = xmlMalloc(len);
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memset(xsltLocaleList, 0, len);
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EnumSystemLocalesA(xsltIterateSupportedLocales, LCID_SUPPORTED);
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}
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xmlRMutexUnlock(xsltLocaleMutex);
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}
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#endif /*def XSLT_LOCALE_WINAPI*/
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