[Bug-mit-scheme] [bug #14844] Edwin tutorial causes an internal error if window is too small

[Taylor Campbell]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=14844>

                 Summary: Edwin tutorial causes an internal error if window
is too small
                 Project: MIT/GNU Scheme
            Submitted by: riastradh
            Submitted on: Sun 10/23/05 at 17:44
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open

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Details:

When the Edwin tutorial is invoked (i.e. C-h t), it builds text from
the TUTORIAL file by replacing the line that starts with << with a
number of newlines equal to the difference between the window's size
and four more than the point at which the << line starts.  The intent
is that the first tutorial message should be presented at the bottom of
the window, but if it does not fit in the window the INSERT-NEWLINES
call receives a negative argument for the number of newlines, because
the code does not consider this case.  24 lines for the enclosing
terminal or X window do not suffice, so this problem is exhibited in
standard 80x24 terminals.





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File Attachments:


-------------------------------------------------------
Date: Sun 10/23/05 at 17:44  Name: tutorial.scm  Size: 1.94KB   By: riastradh
replacement definition of HELP-WITH-TUTORIAL in hlpcom.scm
<http://savannah.gnu.org/bugs/download.php?item_id=14844&item_file_id=3054>

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