[evolution-data-server/sqlite-refactor: 3/18] ECollator: Added e_collator_new_interpret_country()



commit 793b3367802463caf44947a821434ee62052cea2
Author: Tristan Van Berkom <tristanvb openismus com>
Date:   Wed Nov 27 01:03:17 2013 +0900

    ECollator: Added e_collator_new_interpret_country()
    
    ICU is our best source for parsing locale strings, this
    is just a convenience for EBookBackendSqlite to get the active
    country code for phone number parsing.

 libedataserver/e-collator.c |   54 +++++++++++++++++++++++++++++++++++++++++-
 libedataserver/e-collator.h |    4 +++
 2 files changed, 56 insertions(+), 2 deletions(-)
---
diff --git a/libedataserver/e-collator.c b/libedataserver/e-collator.c
index 30de005..05b01ec 100644
--- a/libedataserver/e-collator.c
+++ b/libedataserver/e-collator.c
@@ -124,11 +124,13 @@ print_available_locales (void)
 static gchar *
 canonicalize_locale (const gchar  *posix_locale,
                     gchar       **language_code,
+                    gchar       **country_code,
                     GError      **error)
 {
        UErrorCode status = U_ZERO_ERROR;
        gchar  locale_buffer[LOCALE_BUFFER_LEN];
        gchar  language_buffer[8];
+       gchar  country_buffer[8];
        gchar *icu_locale;
        gchar *final_locale;
        gint   len;
@@ -155,7 +157,6 @@ canonicalize_locale (const gchar  *posix_locale,
 
        status = U_ZERO_ERROR;
        len = uloc_getLanguage (icu_locale, language_buffer, 8, &status);
-
        if (U_FAILURE (status)) {
                g_set_error (error, E_COLLATOR_ERROR,
                             E_COLLATOR_ERROR_INVALID_LOCALE,
@@ -166,6 +167,18 @@ canonicalize_locale (const gchar  *posix_locale,
                return NULL;
        }
 
+       status = U_ZERO_ERROR;
+       len = uloc_getCountry (icu_locale, country_buffer, 8, &status);
+       if (U_FAILURE (status)) {
+               g_set_error (error, E_COLLATOR_ERROR,
+                            E_COLLATOR_ERROR_INVALID_LOCALE,
+                            "Failed to interpret country for locale '%s': %s",
+                            icu_locale,
+                            u_errorName (status));
+               g_free (icu_locale);
+               return NULL;
+       }
+
        /* Add 'phonebook' tailoring to certain locales */
        if (len < 8 &&
            (strcmp (language_buffer, "de") == 0 ||
@@ -186,6 +199,9 @@ canonicalize_locale (const gchar  *posix_locale,
        if (language_code)
                *language_code = g_strdup (language_buffer);
 
+       if (country_code)
+               *country_code = g_strdup (country_buffer);
+
        return final_locale;
 }
 
@@ -282,11 +298,36 @@ ECollator *
 e_collator_new (const gchar     *locale,
                GError         **error)
 {
+       return e_collator_new_interpret_country (locale, NULL, error);
+}
+
+/**
+ * e_collator_new_interpret_country:
+ * @locale: The locale under which to sort
+ * @country_code: (allow-none) (out) (transfer full): A location to store the interpreted country code from 
@locale 
+ * @error: (allow-none): A location to store a #GError from the #E_COLLATOR_ERROR domain
+ *
+ * Creates a new #ECollator for the given @locale,
+ * the returned collator should be freed with e_collator_unref().
+ *
+ * In addition, this also reliably interprets the country
+ * code from the @locale string and stores it to @country_code.
+ *
+ * Returns: (transfer full): A newly created #ECollator.
+ *
+ * Since: 3.12
+ */
+ECollator *
+e_collator_new_interpret_country (const gchar     *locale,
+                                 gchar          **country_code,
+                                 GError         **error)
+{
        ECollator *collator;
        UCollator *coll;
        UErrorCode status = U_ZERO_ERROR;
        gchar     *icu_locale;
        gchar     *language_code = NULL;
+       gchar     *local_country_code = NULL;
 
        g_return_val_if_fail (locale && locale[0], NULL);
 
@@ -294,7 +335,10 @@ e_collator_new (const gchar     *locale,
        print_available_locales ();
 #endif
 
-       icu_locale = canonicalize_locale (locale, &language_code, error);
+       icu_locale = canonicalize_locale (locale,
+                                         &language_code,
+                                         &local_country_code,
+                                         error);
        if (!icu_locale)
                return NULL;
 
@@ -308,6 +352,7 @@ e_collator_new (const gchar     *locale,
                             u_errorName (status));
 
                g_free (language_code);
+               g_free (local_country_code);
                g_free (icu_locale);
                ucol_close (coll);
                return NULL;
@@ -336,6 +381,11 @@ e_collator_new (const gchar     *locale,
 
        g_free (language_code);
 
+       if (country_code)
+               *country_code = local_country_code;
+       else
+               g_free (local_country_code);
+
        return collator;
 }
 
diff --git a/libedataserver/e-collator.h b/libedataserver/e-collator.h
index 933c6d1..29b6e80 100644
--- a/libedataserver/e-collator.h
+++ b/libedataserver/e-collator.h
@@ -70,6 +70,10 @@ GType                e_collator_get_type         (void);
 GQuark               e_collator_error_quark      (void);
 ECollator           *e_collator_new              (const gchar     *locale,
                                                  GError         **error);
+ECollator           *e_collator_new_interpret_country
+                                                 (const gchar     *locale,
+                                                 gchar          **country_code,
+                                                 GError         **error);
 ECollator           *e_collator_ref              (ECollator       *collator);
 void                 e_collator_unref            (ECollator       *collator);
 gchar               *e_collator_generate_key     (ECollator       *collator,


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