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CREDITS (97, 2020-06-26)
Todo.text (2296, 2020-06-26)
build (138, 2020-06-26)
checkbook (346, 2020-06-26)
vicissicalc.c (18067, 2020-06-26)

Vicissicalc Copyright (c) 2008,2020 by Darius Bacon Distributed under GNU General Public Licence v3 http://www.gnu.org/licenses/gpl.html A little spreadsheet -- I've never written one before, or even really used one. To build it: $ ./build To run it: $ ./vicissicalc or: $ ./vicissicalc checkbook or other filename; 'checkbook' is the supplied sample spreadsheet. Requirements: - A C compiler. - It uses ANSI terminal escape codes; pretty much every terminal knows them. It's meant to work on any operating system having an `stty` program, using C code like `system("stty raw");`. Brief user manual: - "q" quits the session. You won't get asked if you want to save your work. - "w" saves the spreadsheet file (w for write). It first prompts you to set or change the filename. You can abort this by hitting ctrl-G. - Use the arrow keys to move between cells. - Use the space key to enter a value into a cell. Again there's ctrl-G if you change your mind. - Numeric values must start with =, just like formulas. - Refer to other cells with the @ sign. 2@3 means row 2, column 3. r and c are pseudovariables for the current row and column. =(r-1)@c is a formula for the value in the cell above. - Copy formulas to neighboring cells using the ctrl-arrow key-chords. For example, ctrl-uparrow copies the current cell's formula to the cell just above it. - The "f" key toggles whether you see cell formulas or cell values.

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