tConstrain horizontal cursor movement during vertical navigation - ve - a minimal text editor (work in progress)
  HTML git clone git://src.adamsgaard.dk/ve
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       ---
   DIR commit ff5731cf9db9e1933a13654bce29476117121ab5
   DIR parent b6a1dc1daa16f2ce59d88fba5bf3bfdb36e61136
  HTML Author: Anders Damsgaard <anders@adamsgaard.dk>
       Date:   Tue,  6 Aug 2019 13:22:48 +0200
       
       Constrain horizontal cursor movement during vertical navigation
       
       Diffstat:
         M input.c                             |      14 +++++++++++++-
       
       1 file changed, 13 insertions(+), 1 deletion(-)
       ---
   DIR diff --git a/input.c b/input.c
       t@@ -5,9 +5,13 @@
        
        #define CTRL_KEY(k) ((k) & 0x1f)
        
       +/* move cursor according to screen, file, and line limits */
        void
        editor_move_cursor(char key)
        {
       +        int row_len;
       +        eRow *row;
       +        
                switch(key) {
                        case 'h':
                                if (E.cursor_x > 0)
       t@@ -22,9 +26,17 @@ editor_move_cursor(char key)
                                        E.cursor_y--;
                                break;
                        case 'l':
       -                        E.cursor_x++;
       +                        row = (E.cursor_y >= E.num_rows) ? NULL : &E.row[E.cursor_y];
       +                        if (row && E.cursor_x < row->size)
       +                                E.cursor_x++;
                                break;
                }
       +
       +        /* do not allow navigation past EOL by vertical navigation */
       +        row = (E.cursor_y >= E.num_rows) ? NULL : &E.row[E.cursor_y];
       +        row_len = row ? row->size : 0;
       +        if (E.cursor_x > row_len)
       +                E.cursor_x = row_len;
        }
        
        void