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Spaces can end up on the ends of lines in all sorts of ways, e.g.
copy-and-pasting text or erasing the newline of a line with
indentation. I think an easier, safer, and more reliable approach
would be to strip all trailing spaces and tabs when the file is saved.
I think there might even be some plugin that already does this. Derek Mildred Ki'Lya said the following on 08/13/2010 05:34 AM: Hi, First, if this is a duplicate, sorry, but I couldn't find the message on the archives. I want to write a plugin for Gedit that removes trailing spaces while writing. But that won't remove trailing spaces where the file was not modified. This is useful for example to avoid too many merge conflicts when other people leave trailing spaces everywhere. It can also be meaningful sometimes. In PHP, "?>\n" is not the same as "?> \n". In the first form, the new line is removed. This function exists in KWrite, but i'm trying to change to gedit... How does this function works? When I press <Return> and a new line is inserted, the previous line is stripped from its trailing spaces. How did I implement it? I connected the signal key-press-event to get the <Return> key event, and when this happens, I remove all the spaces that are before the cursor. The signal continues its propagation and the default handler in GtkSourceView inserts the new line. Now, with this implementation, I have the following problems: - I'm not sure I catch all the new line creations as i'm only listening for the <Return> key. Indeed, while reading the source code of the default handler in GtkSourceView, I noticed that <KP_Enter> had the same effects - There are other things i'm not duplicating. Again, while reading code, I noticed that sometimes the event was discarded because it was only relevant to the input method (call to gtk_text_view_im_context_filter_keypress) - It messes horribly with indentation. Basically, if I'm on an empty line with only indentation spaces. The plugin foirst removes the indentation before GtkSourceView creates the new line. Therefore, GtkSourceView things there is no indentation. Instead, I'd like to keep the same indentation level - My plugin messes with other indentation plugins. For example, it seems that the python_indentation plugin replaces completely the default handler instead of adding to it. So, depending of the signal processing order, the plugin might get executed or not I wanted to know if there was a way to fix those issues. I was thinking that GtkSourceView could be modified so it sends an event when a new line is inserted. Both my plugin and the indentation plugin in effect could then connect to this signal and modify the document as needed. This method also keeps all the complicated stuff (key binding and input method) in GtkSourceView, hidden away from plugin developers (so they could not remove functionality by messing with it). Am I imagining things, is there a better solution ? Thanks. Mildred_______________________________________________ gedit-list mailing list gedit-list gnome org http://mail.gnome.org/mailman/listinfo/gedit-list |