+gchar *
+modest_text_utils_get_email_address (const gchar *full_address)
+{
+ const gchar *left, *right;
+
+ if (!full_address)
+ return NULL;
+
+ g_return_val_if_fail (g_utf8_validate (full_address, -1, NULL), NULL);
+
+ left = g_strrstr_len (full_address, strlen(full_address), "<");
+ if (left == NULL)
+ return g_strdup (full_address);
+
+ right = g_strstr_len (left, strlen(left), ">");
+ if (right == NULL)
+ return g_strdup (full_address);
+
+ return g_strndup (left + 1, right - left - 1);
+}
+
+gint
+modest_text_utils_get_subject_prefix_len (const gchar *sub)
+{
+ gint i;
+ static const gchar* prefix[] = {
+ "Re:", "RE:", "RV:", "re:"
+ "Fwd:", "FWD:", "FW:", "fwd:", "Fw:", "fw:", NULL
+ };
+
+ if (!sub || (sub[0] != 'R' && sub[0] != 'F' && sub[0] != 'r' && sub[0] != 'f')) /* optimization */
+ return 0;
+
+ i = 0;
+
+ while (prefix[i]) {
+ if (g_str_has_prefix(sub, prefix[i])) {
+ int prefix_len = strlen(prefix[i]);
+ if (sub[prefix_len] == ' ')
+ ++prefix_len; /* ignore space after prefix as well */
+ return prefix_len;
+ }
+ ++i;
+ }
+ return 0;
+}
+
+
+gint
+modest_text_utils_utf8_strcmp (const gchar* s1, const gchar *s2, gboolean insensitive)
+{
+ gint result = 0;
+ gchar *n1, *n2;
+
+ /* work even when s1 and/or s2 == NULL */
+ if (G_UNLIKELY(s1 == s2))
+ return 0;
+
+ /* if it's not case sensitive */
+ if (!insensitive)
+ return strcmp (s1 ? s1 : "", s2 ? s2 : "");
+
+ n1 = g_utf8_collate_key (s1 ? s1 : "", -1);
+ n2 = g_utf8_collate_key (s2 ? s2 : "", -1);
+
+ result = strcmp (n1, n2);
+
+ g_free (n1);
+ g_free (n2);
+
+ return result;
+}
+
+
+gchar*
+modest_text_utils_get_display_date (time_t date)
+{
+ time_t now;
+ static const guint BUF_SIZE = 64;
+ static const guint ONE_DAY = 24 * 60 * 60; /* seconds in one day */
+ gchar date_buf[BUF_SIZE];
+ gchar today_buf [BUF_SIZE];
+
+ modest_text_utils_strftime (date_buf, BUF_SIZE, "%x", date);
+
+ now = time (NULL);
+
+ /* we check if the date is within the last 24h, if not, we don't
+ * have to do the extra, expensive strftime, which was very visible
+ * in the profiles.
+ */
+ if (abs(now - date) < ONE_DAY) {
+
+ /* it's within the last 24 hours, but double check */
+ /* use the localized dates */
+ modest_text_utils_strftime (today_buf, BUF_SIZE, "%x", now);
+
+ /* if it's today, use the time instead */
+ if (strcmp (date_buf, today_buf) == 0)
+ modest_text_utils_strftime (date_buf, BUF_SIZE, "%X", date);
+ }
+
+ return g_strdup(date_buf);
+}
+
+
+gboolean
+modest_text_utils_validate_folder_name (const gchar *folder_name)
+{
+ /* based on http://msdn2.microsoft.com/en-us/library/aa365247.aspx,
+ * with some extras */
+
+ guint len;
+ const gchar **cursor;
+ const gchar *forbidden_chars[] = {
+ "<", ">", ":", "\"", "/", "\\", "|", "?", "*", "^", "%", "$", NULL
+ };
+ const gchar *forbidden_names[] = { /* windows does not like these */
+ "CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6",
+ "COM7", "COM8", "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
+ ".", "..", NULL
+ };
+
+ /* cannot be NULL */
+ if (!folder_name)
+ return FALSE;
+
+ /* cannot be empty */
+ len = strlen(folder_name);
+ if (len == 0)
+ return FALSE;
+
+ /* cannot start or end with a space */
+ if (g_ascii_isspace(folder_name[0]) || g_ascii_isspace(folder_name[len - 1]))
+ return FALSE;
+
+ /* cannot contain a forbidden char */
+ for (cursor = forbidden_chars; cursor && *cursor; ++cursor)
+ if (strstr(folder_name, *cursor) != NULL)
+ return FALSE;
+
+ /* cannot contain a forbidden word */
+ if (len <= 4) {
+ for (cursor = forbidden_names; cursor && *cursor; ++cursor) {
+ if (g_ascii_strcasecmp (folder_name, *cursor) == 0)
+ return FALSE;
+ }
+ }
+ return TRUE; /* it's valid! */
+}
+
+
+
+gboolean
+modest_text_utils_validate_domain_name (const gchar *domain)
+{
+ gboolean valid = FALSE;
+ regex_t rx;
+ const gchar* domain_regex = "^[a-z0-9]([.]?[a-z0-9-])*[a-z0-9]$";
+
+ if (!domain)
+ return FALSE;
+
+ /* domain name: all alphanum or '-' or '.',
+ * but beginning/ending in alphanum */
+ if (regcomp (&rx, domain_regex, REG_ICASE|REG_EXTENDED|REG_NOSUB)) {
+ g_warning ("BUG: error in regexp");
+ return FALSE;
+ }
+
+ valid = (regexec (&rx, domain, 1, NULL, 0) == 0);
+ regfree (&rx);
+
+ return valid;
+}
+
+
+
+gboolean
+modest_text_utils_validate_email_address (const gchar *email_address, const gchar **invalid_char_position)
+{
+ int count = 0;
+ const gchar *c = NULL, *domain = NULL;
+ static gchar *rfc822_specials = "()<>@,;:\\\"[]&";
+
+ if (invalid_char_position != NULL)
+ *invalid_char_position = NULL;
+
+ /* check that the email adress contains exactly one @ */
+ if (!strstr(email_address, "@") ||
+ (strstr(email_address, "@") != g_strrstr(email_address, "@")))
+ {
+ return FALSE;
+ }
+
+ /* first we validate the name portion (name@domain) */
+ for (c = email_address; *c; c++) {
+ if (*c == '\"' &&
+ (c == email_address ||
+ *(c - 1) == '.' ||
+ *(c - 1) == '\"')) {
+ while (*++c) {
+ if (*c == '\"')
+ break;
+ if (*c == '\\' && (*++c == ' '))
+ continue;
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ }
+ if (!*c++)
+ return FALSE;
+ if (*c == '@')
+ break;
+ if (*c != '.')
+ return FALSE;
+ continue;
+ }
+ if (*c == '@')
+ break;
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ if (strchr(rfc822_specials, *c)) {
+ if (invalid_char_position)
+ *invalid_char_position = c;
+ return FALSE;
+ }
+ }
+ if (c == email_address || *(c - 1) == '.')
+ return FALSE;
+
+ /* next we validate the domain portion (name@domain) */
+ if (!*(domain = ++c))
+ return FALSE;
+ do {
+ if (*c == '.') {
+ if (c == domain || *(c - 1) == '.' || *(c + 1) == '\0')
+ return FALSE;
+ count++;
+ }
+ if (*c <= ' ' || *c >= 127)
+ return FALSE;
+ if (strchr(rfc822_specials, *c)) {
+ if (invalid_char_position)
+ *invalid_char_position = c;
+ return FALSE;
+ }
+ } while (*++c);
+
+ return (count >= 1) ? TRUE : FALSE;
+}
+
+gboolean
+modest_text_utils_validate_recipient (const gchar *recipient, const gchar **invalid_char_position)
+{
+ gchar *stripped, *current;
+ gchar *right_part;
+ gboolean has_error = FALSE;
+
+ if (modest_text_utils_validate_email_address (recipient, invalid_char_position))
+ return TRUE;
+ stripped = g_strdup (recipient);
+ stripped = g_strstrip (stripped);
+ current = stripped;
+
+ if (*current == '\0') {
+ g_free (stripped);
+ return FALSE;
+ }
+
+ /* quoted string */
+ if (*current == '\"') {
+ current = g_utf8_next_char (current);
+ has_error = TRUE;
+ for (; *current != '\0'; current = g_utf8_next_char (current)) {
+ if (*current == '\\') {
+ /* TODO: This causes a warning, which breaks the build,
+ * because a gchar cannot be < 0.
+ * murrayc.
+ if (current[1] <0) {
+ has_error = TRUE;
+ break;
+ }
+ */
+ } else if (*current == '\"') {
+ has_error = FALSE;
+ current = g_utf8_next_char (current);
+ break;
+ }
+ }
+ } else {
+ has_error = TRUE;
+ for (current = stripped ; *current != '\0'; current = g_utf8_next_char (current)) {
+ if (*current == '<') {
+ has_error = FALSE;
+ break;
+ }
+ }
+ }
+
+ if (has_error) {
+ g_free (stripped);
+ return FALSE;
+ }
+
+ right_part = g_strdup (current);
+ g_free (stripped);
+ right_part = g_strstrip (right_part);
+
+ if (g_str_has_prefix (right_part, "<") &&
+ g_str_has_suffix (right_part, ">")) {
+ gchar *address;
+ gboolean valid;
+
+ address = g_strndup (right_part+1, strlen (right_part) - 2);
+ g_free (right_part);
+ valid = modest_text_utils_validate_email_address (address, invalid_char_position);
+ g_free (address);
+ return valid;
+ } else {
+ g_free (right_part);
+ return FALSE;
+ }
+}
+
+
+gchar *
+modest_text_utils_get_display_size (guint64 size)
+{
+ const guint KB=1024;
+ const guint MB=1024 * KB;
+ const guint GB=1024 * MB;
+
+ if (size == 0)
+ return g_strdup_printf(_FM("sfil_li_size_kb"), 0);
+ if (0 < size && size < KB)
+ return g_strdup_printf (_FM("sfil_li_size_kb"), 1);
+ else if (KB <= size && size < 100 * KB)
+ return g_strdup_printf (_FM("sfil_li_size_1kb_99kb"), size / KB);
+ else if (100*KB <= size && size < MB)
+ return g_strdup_printf (_FM("sfil_li_size_100kb_1mb"), (float) size / MB);
+ else if (MB <= size && size < 10*MB)
+ return g_strdup_printf (_FM("sfil_li_size_1mb_10mb"), (float) size / MB);
+ else if (10*MB <= size && size < GB)
+ return g_strdup_printf (_FM("sfil_li_size_10mb_1gb"), size / MB);
+ else
+ return g_strdup_printf (_FM("sfil_li_size_1gb_or_greater"), (float) size / GB);
+}
+
+static gchar *
+get_email_from_address (const gchar * address)
+{
+ gchar *left_limit, *right_limit;
+
+ left_limit = strstr (address, "<");
+ right_limit = g_strrstr (address, ">");
+
+ if ((left_limit == NULL)||(right_limit == NULL)|| (left_limit > right_limit))
+ return g_strdup (address);
+ else
+ return g_strndup (left_limit + 1, (right_limit - left_limit) - 1);
+}
+
+gchar *
+modest_text_utils_get_color_string (GdkColor *color)
+{
+
+ return g_strdup_printf ("#%x%x%x%x%x%x%x%x%x%x%x%x",
+ (color->red >> 12) & 0xf, (color->red >> 8) & 0xf,
+ (color->red >> 4) & 0xf, (color->red) & 0xf,
+ (color->green >> 12) & 0xf, (color->green >> 8) & 0xf,
+ (color->green >> 4) & 0xf, (color->green) & 0xf,
+ (color->blue >> 12) & 0xf, (color->blue >> 8) & 0xf,
+ (color->blue >> 4) & 0xf, (color->blue) & 0xf);
+}
+
+gchar *
+modest_text_utils_text_buffer_get_text (GtkTextBuffer *buffer)
+{
+ GtkTextIter start, end;
+ gchar *slice, *current;
+ GString *result = g_string_new ("");
+
+ g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
+
+ gtk_text_buffer_get_start_iter (buffer, &start);
+ gtk_text_buffer_get_end_iter (buffer, &end);
+
+ slice = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
+ current = slice;
+
+ while (current && current != '\0') {
+ if (g_utf8_get_char (current) == 0xFFFC) {
+ result = g_string_append_c (result, ' ');
+ current = g_utf8_next_char (current);
+ } else {
+ gchar *next = g_utf8_strchr (current, -1, 0xFFFC);
+ if (next == NULL) {
+ result = g_string_append (result, current);
+ } else {
+ result = g_string_append_len (result, current, next - current);
+ }
+ current = next;
+ }
+ }
+ g_free (slice);
+
+ return g_string_free (result, FALSE);
+
+}