[balsa] send: Use g_strsplit_set()

[Peter Bloomfield <peterb src gnome org>]

commit 528b80548ba821a6d5d61fb0ef190f869ce29e52
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Tue Aug 18 11:17:40 2020 -0400

    send: Use g_strsplit_set()
    
    instead of our own parser, now that we require a new enough glib.

 libbalsa/send.c | 22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)
---
diff --git a/libbalsa/send.c b/libbalsa/send.c
index 18b72c4da..834193034 100644
--- a/libbalsa/send.c
+++ b/libbalsa/send.c
@@ -1205,26 +1205,6 @@ get_mailbox_names(GList               *list,
 }
 
 
-/* We could have used g_strsplit_set(s, "/;", 3) but it is not
- * available in older glib. */
-static gchar **
-parse_content_type(const char *content_type)
-{
-    gchar **ret = g_new0(gchar *, 3);
-    char *delim, *slash = strchr(content_type, '/');
-    if (!slash) {
-        ret[0] = g_strdup(content_type);
-        return ret;
-    }
-    ret[0] = g_strndup(content_type, slash - content_type);
-    slash++;
-    for (delim = slash; *delim && *delim != ';' && *delim != ' '; delim++) {
-    }
-    ret[1] = g_strndup(slash, delim - slash);
-    return ret;
-}
-
-
 static LibBalsaMsgCreateResult
 libbalsa_message_create_mime_message(LibBalsaMessage *message,
                                      gboolean         flow,
@@ -1265,7 +1245,7 @@ libbalsa_message_create_mime_message(LibBalsaMessage *message,
             gchar **mime_type;
 
             if (body->content_type != NULL) {
-                mime_type = parse_content_type(body->content_type);
+                mime_type = g_strsplit_set(body->content_type, "/;", 3);
             } else {
                 const gchar *mt = libbalsa_vfs_get_mime_type(body->file_uri);
                 mime_type = g_strsplit(mt, "/", 2);