08b42bf424
In the end it turned out that the cause of the phantom values was short-cutting in getvalue() when the contents of a cell were empty, preventing the update of the internal cache of the value of the cell. However, tracking this down (and getting the associated memory management correct) necessitated implementing a debugging mode in which I could dump the internal states of cells and print various other stuff to standard output. It also involved understanding the meaning of various pointers in the code, in the process of which I renamed some commonly used macros, particularly the former SHEET(s,x,y,z) which was not returning a Sheet at all but rather a pointer to a Cell. So this macro is now called CELL_AT. I also replaced several very repeatedly used patterns of checking the validity of locations and pointers with macros, now defined in sheet.h. Therefore, unfortunately the (relatively small in the end) bugfix for this major issue is entangled with numerous textual changes to the code made in tracking it down. Fixes #18. Closes #19.
105 lines
2.8 KiB
Groff
105 lines
2.8 KiB
Groff
.\" teapot.1: teapot manual
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.\" Copyright(c) 2010 by wave++ "Yuri D'Elia" <wavexx@users.sf.net>
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.\" Distributed under GNU GPL WITHOUT ANY WARRANTY.
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.\"
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.Dd December 8, 2010
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.Dt TEAPOT 1
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.\"
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.\"
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.Sh NAME
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.Nm teapot
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.Nd Table Editor And Planner, Or: Teapot!
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.\"
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.\"
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.Sh SYNOPSIS
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\fBfteapot|teapot\fP
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.Op Fl abdhHr
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.Op Fl n|q
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.Op Fl p Ar digits
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.Op Ar file
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.YS
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.\"
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.\"
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.Sh DESCRIPTION
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.Nm
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(Table Editor And Planner, Or Teapot!) is a compact spreadsheet program, featuring three
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dimensions with linear addressing, relative references, formula references,
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type safety of computations, iterative expressions and platform independent
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file format.
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.Pp
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.Pp
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When invoked as 'teapot' the program uses a console-based text interface; when
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invoked as 'fteapot' it uses a windowed graphical interface. The
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.Pa file
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argument, if given, specifies an initial file to load upon startup.
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.Pp
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This document only describes command-line arguments. Please refer to the
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complete manual that can be found under
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.Pa /usr/share/doc/teapot
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(or other standard documentation location on your system) in both html
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and pdf format, teapot.pdf.
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The manual can also be viewed from within the graphical version using
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the Help menu.
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.\"
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.\"
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.Sh OPTIONS
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.Bl -tag -compact -width " \-p digits "
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.It Fl a
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Use ASCII instead of XDR as default file format when loading or saving.
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.It Fl b
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Read batch commands from standard input.
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.It Fl d
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Increment the debug level, once per occurrence; teapot may produce various
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output on standard out when this is specified, and additional key bindings
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may be in effect.
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.It Fl h
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Print a brief usage message.
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.It Fl H
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Hide row and column headers.
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.It Fl n|q
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Display strings definitely NOT quoted or definitely quoted, respectively.
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.It Fl r
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Redraw the terminal window more often.
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.It Fl p Ar digits
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Set default precision of displayed numbers.
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.El
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.\"
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.\"
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.Sh ENVIRONMENT
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.Ev DISPLAY See Xr X 7 .
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.\"
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.\"
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.Sh SEE ALSO
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.Pa /usr/share/doc/teapot/
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.\"
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.\"
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.Sh LICENSE
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Copyright (C) 1995-2006
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.An "Michael Haardt"
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.Pp
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Copyright (C) 2009-2012
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.Mt info@syntax-k.de
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J\(:org Walter
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.Me
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.Pp
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Copyright (C) 2019
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.Mt glen@studioinfinity.org
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Glen Whitney
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.Me
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.Pp
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Manual page written by
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.Mt wavexx@users.sf.net
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Yuri D'Elia
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.Me
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.Pp
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This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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.Pp
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE .
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See the GNU General Public License for more details.
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.Pp
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You should have received a copy of the GNU General Public License along with this program.
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If not, see
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.Ur http://www.gnu.org/licenses/
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http://www.gnu.org/licenses/
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.Ue .
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