The Tor Browser: intl/locale/src/unix/nsPosixLocale.cpp@925c144e1f1f (annotated)

intl/locale/src/unix/nsPosixLocale.cpp@925c144e1f1f (annotated)

intl/locale/src/unix/nsPosixLocale.cpp

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "nscore.h"
 #include "nsString.h"
 #include "nsPosixLocale.h"
 #include "prprf.h"
 #include "plstr.h"
 #include "nsReadableUtils.h"
 static bool
 ParseLocaleString(const char* locale_string, char* language, char* country, char* extra, char separator);
 nsresult
 nsPosixLocale::GetPlatformLocale(const nsAString& locale, nsACString& posixLocale)
 {
   char  country_code[MAX_COUNTRY_CODE_LEN+1];
   char  lang_code[MAX_LANGUAGE_CODE_LEN+1];
   char  extra[MAX_EXTRA_LEN+1];
   char  posix_locale[MAX_LOCALE_LEN+1];
   NS_LossyConvertUTF16toASCII xp_locale(locale);
   if (!xp_locale.IsEmpty()) {
     if (!ParseLocaleString(xp_locale.get(),lang_code,country_code,extra,'-')) {
 //      strncpy(posixLocale,"C",length);
       posixLocale = xp_locale;  // use xp locale if parse failed
       return NS_OK;
     }
     if (*country_code) {
       if (*extra) {
         PR_snprintf(posix_locale,sizeof(posix_locale),"%s_%s.%s",lang_code,country_code,extra);
       }
       else {
         PR_snprintf(posix_locale,sizeof(posix_locale),"%s_%s",lang_code,country_code);
       }
     }
     else {
       if (*extra) {
         PR_snprintf(posix_locale,sizeof(posix_locale),"%s.%s",lang_code,extra);
       }
       else {
         PR_snprintf(posix_locale,sizeof(posix_locale),"%s",lang_code);
       }
     }
     posixLocale = posix_locale;
     return NS_OK;
   }
   return NS_ERROR_FAILURE;
 }
 nsresult
 nsPosixLocale::GetXPLocale(const char* posixLocale, nsAString& locale)
 {
   char  country_code[MAX_COUNTRY_CODE_LEN+1];
   char  lang_code[MAX_LANGUAGE_CODE_LEN+1];
   char  extra[MAX_EXTRA_LEN+1];
   char  posix_locale[MAX_LOCALE_LEN+1];
   if (posixLocale!=nullptr) {
     if (strcmp(posixLocale,"C")==0 || strcmp(posixLocale,"POSIX")==0) {
       locale.AssignLiteral("en-US");
       return NS_OK;
     }
     if (!ParseLocaleString(posixLocale,lang_code,country_code,extra,'_')) {
 //      * locale = "x-user-defined";
       // use posix if parse failed
       CopyASCIItoUTF16(nsDependentCString(posixLocale), locale);
       return NS_OK;
     }
     // Special case: substitute "nb" (Norwegian Bokmal) for macrolanguage
     // code "no" (Norwegian)
     if (nsDependentCString(lang_code).LowerCaseEqualsLiteral("no")) {
       lang_code[1] = 'b';
     }
     if (*country_code) {
       PR_snprintf(posix_locale,sizeof(posix_locale),"%s-%s",lang_code,country_code);
     }
     else {
       PR_snprintf(posix_locale,sizeof(posix_locale),"%s",lang_code);
     }
     CopyASCIItoUTF16(nsDependentCString(posix_locale), locale);
     return NS_OK;
   }
     return NS_ERROR_FAILURE;
 }
 //
 // returns false/true depending on if it was of the form LL-CC.Extra
 static bool
 ParseLocaleString(const char* locale_string, char* language, char* country, char* extra, char separator)
 {
   const char *src = locale_string;
   char modifier[MAX_EXTRA_LEN+1];
   char *dest;
   int dest_space, len;
   *language = '\0';
   *country = '\0';
   *extra = '\0';
   if (strlen(locale_string) < 2) {
     return(false);
   }
   //
   // parse the language part
   //
   dest = language;
   dest_space = MAX_LANGUAGE_CODE_LEN;
   while ((*src) && (isalpha(*src)) && (dest_space--)) {
     *dest++ = tolower(*src++);
   }
   *dest = '\0';
   len = dest - language;
   if ((len != 2) && (len != 3)) {
     NS_ASSERTION((len == 2) || (len == 3), "language code too short");
     NS_ASSERTION(len < 3, "reminder: verify we can handle 3+ character language code in all parts of the system; eg: language packs");
     *language = '\0';
     return(false);
   }
   // check if all done
   if (*src == '\0') {
     return(true);
   }
   if ((*src != '_') && (*src != '-') && (*src != '.') && (*src != '@')) {
     NS_ASSERTION(isalpha(*src), "language code too long");
     NS_ASSERTION(!isalpha(*src), "unexpected language/country separator");
     *language = '\0';
     return(false);
   }
   //
   // parse the country part
   //
   if ((*src == '_') || (*src == '-')) {
     src++;
     dest = country;
     dest_space = MAX_COUNTRY_CODE_LEN;
     while ((*src) && (isalpha(*src)) && (dest_space--)) {
       *dest++ = toupper(*src++);
     }
     *dest = '\0';
     len = dest - country;
     if (len != 2) {
       NS_ASSERTION(len == 2, "unexpected country code length");
       *language = '\0';
       *country = '\0';
       return(false);
     }
   }
   // check if all done
   if (*src == '\0') {
     return(true);
   }
   if ((*src != '.') && (*src != '@')) {
     NS_ASSERTION(isalpha(*src), "country code too long");
     NS_ASSERTION(!isalpha(*src), "unexpected country/extra separator");
     *language = '\0';
     *country = '\0';
     return(false);
   }
   //
   // handle the extra part
   //
   if (*src == '.') {
     src++;  // move past the extra part separator
     dest = extra;
     dest_space = MAX_EXTRA_LEN;
     while ((*src) && (*src != '@') && (dest_space--)) {
       *dest++ = *src++;
     }
     *dest = '\0';
     len = dest - extra;
     if (len < 1) {
       NS_ASSERTION(len > 0, "found country/extra separator but no extra code");
       *language = '\0';
       *country = '\0';
       *extra = '\0';
       return(false);
     }
   }
   // check if all done
   if (*src == '\0') {
     return(true);
   }
   //
   // handle the modifier part
   //
   if (*src == '@') {
     src++;  // move past the modifier separator
     NS_ASSERTION(strcmp("euro",src) == 0, "found non euro modifier");
     dest = modifier;
     dest_space = MAX_EXTRA_LEN;
     while ((*src) && (dest_space--)) {
       *dest++ = *src++;
     }
     *dest = '\0';
     len = dest - modifier;
     if (len < 1) {
       NS_ASSERTION(len > 0, "found modifier separator but no modifier code");
       *language = '\0';
       *country = '\0';
       *extra = '\0';
       *modifier = '\0';
       return(false);
     }
   }
   // check if all done
   if (*src == '\0') {
     return(true);
   }
   NS_ASSERTION(*src == '\0', "extra/modifier code too long");
   *language = '\0';
   *country = '\0';
   *extra = '\0';
   return(false);
 }

The Tor Browser / annotate

intl/locale/src/unix/nsPosixLocale.cpp@925c144e1f1f (annotated)

intl/locale/src/unix/nsPosixLocale.cpp