[tepl] docs: roadmap update

[Sébastien Wilmet <swilmet src gnome org>]

commit def3c6d6d6efae9c7c3c691a15e5642947d0c9af
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon May 25 16:19:07 2020 +0200

    docs: roadmap update
    
    Drop the following item from the roadmap:
    'High-level file loading and saving API: separate it from the core framework'
    
    it was done differently, not by having a sub-namespace, but by just
    moving the public functions to separate source files for clarity.

 docs/roadmap.md | 35 +++++++++++++----------------------
 1 file changed, 13 insertions(+), 22 deletions(-)
---
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 8011d71..b7f8d42 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -39,36 +39,27 @@ Tasks:
 - Keep only the TeplMetadataManager for storing metadata on disk, and
   re-implement it to no longer depend on the libxml2.
 
-A complete overhaul of the file loading and saving toolkit
-----------------------------------------------------------
+A complete overhaul of the file loading and saving
+--------------------------------------------------
 
 - Status: **in progress**
 
 Tasks:
-- New and hopefully simpler implementation, the API will still be mostly the
-  same.
+- New and hopefully simpler implementation, the API is still mostly the same.
+- Implement both the backend and the frontend, incrementally. For the frontend
+  (the high-level API), handle all errors by showing TeplInfoBar's etc.
 - Use the [libicu](http://site.icu-project.org/) for character encoding
   _conversion_, not iconv.
 - Use the libicu for character encoding _auto-detection_, not
   [uchardet](https://www.freedesktop.org/wiki/Software/uchardet/).
-- Almost have a feature parity with the GtkSourceView file loading and saving
-  API, drop gzip compression support and progress callbacks.
-- Replace the few functions that do sync I/O with async I/O.
-
-High-level file loading and saving API: separate it from the core framework
----------------------------------------------------------------------------
-
-- Status: **todo**
-
-The purpose is to have a more minimal core framework, and have the file loading
-and saving high-level API in separate sub-namespace(s).
-
-Continue high-level file loading and saving implementation
-----------------------------------------------------------
-
-- Status: **todo**
-
-All the errors would be handled by Tepl, showing TeplInfoBars etc.
+- Replace the few functions in TeplFile that do sync I/O with async I/O.
+- Compared to the GtkSourceView file loading and saving:
+       - Drop gzip compression support and progress callbacks.
+       - Add more important features: preventing loading files that are not
+         well supported by GtkTextView (very big file sizes, or very long
+         lines). Ideally proposing solutions to load the files, for example to
+         split very long lines (and then showing a warning when saving the
+         file).
 
 File browser widget
 -------------------