+ append_quoted (q, indent, l, breakpoint);
+ g_string_free (l, TRUE);
+ } while ((iter < text + len) || (remaining->str[0]));
+
+ return g_string_free (q, FALSE);
+}
+
+static gchar*
+modest_text_utils_quote_html (const gchar *text,
+ const gchar *cite,
+ int limit)
+{
+ const gchar *format = \
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n" \
+ "<html>\n" \
+ "<body>\n" \
+ "%s" \
+ "<blockquote type=\"cite\">\n%s\n</blockquote>\n" \
+ "</body>\n" \
+ "</html>\n";
+
+ return g_strdup_printf (format, cite, text);
+}
+
+static gint
+cmp_offsets_reverse (const url_match_t *match1, const url_match_t *match2)
+{
+ return match2->offset - match1->offset;
+}
+
+
+
+/*
+ * check if the match is inside an existing match... */
+static void
+chk_partial_match (const url_match_t *match, guint* offset)
+{
+ if (*offset >= match->offset && *offset < match->offset + match->len)
+ *offset = -1;
+}
+
+static GSList*
+get_url_matches (GString *txt)
+{
+ regmatch_t rm;
+ guint rv, i, offset = 0;
+ GSList *match_list = NULL;
+
+ static url_match_pattern_t patterns[] = MAIL_VIEWER_URL_MATCH_PATTERNS;
+ const size_t pattern_num = sizeof(patterns)/sizeof(url_match_pattern_t);
+
+ /* initalize the regexps */
+ for (i = 0; i != pattern_num; ++i) {
+ patterns[i].preg = g_new0 (regex_t,1);
+ g_assert(regcomp (patterns[i].preg, patterns[i].regex,
+ REG_ICASE|REG_EXTENDED|REG_NEWLINE) == 0);
+ }
+ /* find all the matches */
+ for (i = 0; i != pattern_num; ++i) {
+ offset = 0;
+ while (1) {
+ int test_offset;
+ if ((rv = regexec (patterns[i].preg, txt->str + offset, 1, &rm, 0)) != 0) {
+ g_assert (rv == REG_NOMATCH); /* this should not happen */
+ break; /* try next regexp */
+ }
+ if (rm.rm_so == -1)
+ break;
+
+ /* FIXME: optimize this */
+ /* to avoid partial matches on something that was already found... */
+ /* check_partial_match will put -1 in the data ptr if that is the case */
+ test_offset = offset + rm.rm_so;
+ g_slist_foreach (match_list, (GFunc)chk_partial_match, &test_offset);
+
+ /* make a list of our matches (<offset, len, prefix> tupels)*/
+ if (test_offset != -1) {
+ url_match_t *match = g_new (url_match_t,1);
+ match->offset = offset + rm.rm_so;
+ match->len = rm.rm_eo - rm.rm_so;
+ match->prefix = patterns[i].prefix;
+ match_list = g_slist_prepend (match_list, match);
+ }
+ offset += rm.rm_eo;
+ }
+ }
+
+ for (i = 0; i != pattern_num; ++i) {
+ regfree (patterns[i].preg);
+ g_free (patterns[i].preg);
+ } /* don't free patterns itself -- it's static */
+
+ /* now sort the list, so the matches are in reverse order of occurence.
+ * that way, we can do the replacements starting from the end, so we don't need
+ * to recalculate the offsets
+ */
+ match_list = g_slist_sort (match_list,
+ (GCompareFunc)cmp_offsets_reverse);
+ return match_list;
+}
+
+
+
+static void
+hyperlinkify_plain_text (GString *txt)
+{
+ GSList *cursor;
+ GSList *match_list = get_url_matches (txt);
+
+ /* we will work backwards, so the offsets stay valid */
+ for (cursor = match_list; cursor; cursor = cursor->next) {
+
+ url_match_t *match = (url_match_t*) cursor->data;
+ gchar *url = g_strndup (txt->str + match->offset, match->len);
+ gchar *repl = NULL; /* replacement */
+
+ /* the prefix is NULL: use the one that is already there */
+ repl = g_strdup_printf ("<a href=\"%s%s\">%s</a>",
+ match->prefix ? match->prefix : "", url, url);
+
+ /* replace the old thing with our hyperlink
+ * replacement thing */
+ g_string_erase (txt, match->offset, match->len);
+ g_string_insert (txt, match->offset, repl);
+
+ g_free (url);
+ g_free (repl);
+
+ g_free (cursor->data);
+ }
+
+ g_slist_free (match_list);
+}
+
+
+
+gchar*
+modest_text_utils_get_display_address (gchar *address)
+{
+ gchar *cursor;
+
+ if (!address)
+ return NULL;
+
+ g_return_val_if_fail (g_utf8_validate (address, -1, NULL), NULL);
+
+ g_strchug (address); /* remove leading whitespace */
+
+ /* <email@address> from display name */
+ cursor = g_strstr_len (address, strlen(address), "<");
+ if (cursor == address) /* there's nothing else? leave it */
+ return address;
+ if (cursor)
+ cursor[0]='\0';
+
+ /* remove (bla bla) from display name */
+ cursor = g_strstr_len (address, strlen(address), "(");
+ if (cursor == address) /* there's nothing else? leave it */
+ return address;
+ if (cursor)
+ cursor[0]='\0';
+
+ g_strchomp (address); /* remove trailing whitespace */
+
+ return address;
+}
+
+
+
+gint
+modest_text_utils_get_subject_prefix_len (const gchar *sub)
+{
+ gint i;
+ static const gchar* prefix[] = {
+ "Re:", "RE:", "Fwd:", "FWD:", "FW:", NULL
+ };
+
+ if (!sub || (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;
+}
+
+static GHashTable*
+get_display_date_cache (void)
+{
+ TnyPlatformFactory *fakt;
+ ModestCacheMgr *cache_mgr;
+
+ fakt = modest_tny_platform_factory_get_instance ();
+
+ cache_mgr = modest_tny_platform_factory_get_cache_mgr_instance
+ (MODEST_TNY_PLATFORM_FACTORY(fakt));
+
+ return modest_cache_mgr_get_cache (cache_mgr,
+ MODEST_CACHE_MGR_CACHE_TYPE_DATE_STRING);
+}
+
+
+
+const gchar*
+modest_text_utils_get_display_date (time_t date)
+{
+ static GHashTable *date_cache = NULL;
+
+ time_t now;
+ const guint BUF_SIZE = 64;
+ gchar date_buf[BUF_SIZE];
+ gchar now_buf [BUF_SIZE];
+ gchar* cached_val;
+
+ if (G_UNLIKELY(!date_cache))
+ date_cache = get_display_date_cache ();
+
+ cached_val = g_hash_table_lookup (date_cache, &date);
+ if (cached_val)
+ return cached_val;
+
+ now = time (NULL);
+
+ /* get today's date */
+ modest_text_utils_strftime (date_buf, BUF_SIZE, "%x", date);
+ modest_text_utils_strftime (now_buf, BUF_SIZE, "%x", now);
+ /* today */
+
+ /* if this is today, get the time instead of the date */
+ if (strcmp (date_buf, now_buf) == 0)
+ modest_text_utils_strftime (date_buf, BUF_SIZE, _("%X"), date);
+
+ cached_val = g_strdup(date_buf);
+ g_hash_table_insert (date_cache, (gpointer)&date, (gpointer)cached_val);