[network-manager-applet/aleksander/mobile-providers: 11/19] libnm-gtk: new method to let clients split a MCCMNC string

[Aleksander Morgado <aleksm src gnome org>]

commit 4a30374ca36f5313487aeeab56edb49020363401
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Mon Nov 26 21:06:32 2012 +0100

    libnm-gtk: new method to let clients split a MCCMNC string
    
    Clients shouldn't need to know how to do the split of the MCCMNC string, just
    hide the logic behind a helper method.

 src/libnm-gtk/nm-mobile-providers.c |   36 +++++++++++++++++++++++++++++++++++
 src/libnm-gtk/nm-mobile-providers.h |    4 +++
 2 files changed, 40 insertions(+), 0 deletions(-)
---
diff --git a/src/libnm-gtk/nm-mobile-providers.c b/src/libnm-gtk/nm-mobile-providers.c
index 67388e0..cd49c59 100644
--- a/src/libnm-gtk/nm-mobile-providers.c
+++ b/src/libnm-gtk/nm-mobile-providers.c
@@ -1186,3 +1186,39 @@ nma_mobile_providers_find_for_cdma_sid (GHashTable *country_infos,
 
 	return NULL;
 }
+
+/**
+ * nma_mobile_providers_split_3gpp_mcc_mnc:
+ * @mccmnc: input MCCMNC string.
+ * @mcc: (out) (transfer full): the MCC.
+ * @mnc: (out) (transfer full): the MNC.
+ *
+ * Splits the input MCCMNC string into separate MCC and MNC strings.
+ *
+ * Returns: %TRUE if correctly split and @mcc and @mnc are set; %FALSE otherwise.
+ */
+gboolean
+nma_mobile_providers_split_3gpp_mcc_mnc (const gchar *mccmnc,
+                                         gchar **mcc,
+                                         gchar **mnc)
+{
+	gint len;
+
+	g_return_val_if_fail (mccmnc != NULL, FALSE);
+	g_return_val_if_fail (mcc != NULL, FALSE);
+	g_return_val_if_fail (mnc != NULL, FALSE);
+
+	len = strlen (mccmnc);
+	if (len != 5 && len != 6)
+		return FALSE;
+
+	/* MCCMNC is all digits */
+	while (len > 0) {
+		if (!g_ascii_isdigit (mccmnc[--len]))
+			return FALSE;
+	}
+
+	*mcc = g_strndup (mccmnc, 3);
+	*mnc = g_strdup (mccmnc + 3);
+	return TRUE;
+}
diff --git a/src/libnm-gtk/nm-mobile-providers.h b/src/libnm-gtk/nm-mobile-providers.h
index 53e30a8..e8c1d93 100644
--- a/src/libnm-gtk/nm-mobile-providers.h
+++ b/src/libnm-gtk/nm-mobile-providers.h
@@ -98,4 +98,8 @@ NMAMobileProvider *nma_mobile_providers_find_for_3gpp_mcc_mnc (GHashTable  *coun
 NMAMobileProvider *nma_mobile_providers_find_for_cdma_sid     (GHashTable  *country_infos,
                                                                guint32      sid);
 
+gboolean nma_mobile_providers_split_3gpp_mcc_mnc (const gchar *mccmnc,
+                                                  gchar **mcc,
+                                                  gchar **mnc);
+
 #endif /* NM_MOBILE_PROVIDERS_H */