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life.vim
" Macros to play Conway's Game of Life in vi " Version 1.0m: edges wrap " by Eli-the-Bearded Benjamin Elijah Griffin <vim@eli.users.panix.com> " Sept 1996 " This file may be free distributed so long as these credits remain unchanged. " " Modified by Bram Moolenaar (Bram@vim.org), 1996 Sept 10 " - Made it quite a bit faster, but now needs search patterns in the text " - Changed the order of mappings to top-down. " - Made "g" run the whole thing, "C" run one generation. " - Added support for any uppercase character instead of 'X' " " Rules: " If a germ has 0 or 1 live neighbors it dies of loneliness " If a germ has 2 or 3 live neighbors it survives " If a germ has 4 to 8 live neighbors it dies of starvation " If an empty box has 3 live neighbors a new germ is born " " A new born germ is an "A". Every generation it gets older: B, C, etc. " A germ dies of old age when it reaches "Z". " " Notice the rules do not mention edges. This version has the edges wrap " around. I have an earlier version that offers the option of live edges or " dead edges. Email me if you are interested. -Eli- " " Note: This is slow! One generation may take up to ten minutes (depends on " your computer and the vi version). " " Quite a lot of the messy stuff is to work around the vi error "Can't yank " inside global/macro". Still doesn't work for all versions of vi. " " To use these macros: " " vi start vi/vim " " :so life.mac Source this file " " g 'g'o! runs everything until interrupted: "IR". " " I Initialize everything. A board will be drawn at the end " of the current buffer. All line references in these macros " are relative to the end of the file and playing the game " can be done safely with any file as the current buffer. " " Change the left field with spaces and uppercase letters to suit " your taste. " " C 'C'ompute one generation. " + idem, time running one generation. " R 'R'un 'C'ompute until interrupted. " i<nr><Esc>z Make a number the only thing on the current line and use " 'z' to time that many generations. " " Time to run 30 generations on my 233 AMD K6 (FreeBSD 3.0): " vim 5.4 xterm 51 sec " gvim 5.4 Athena 42 sec " gvim 5.4 Motif 42 sec " gvim 5.4 GTK 50 sec " nvi 1.79 xterm 58 sec " vi 3.7 xterm 2 min 30 sec " Elvis 2.1 xterm 7 min 50 sec " Elvis 2.1 X11 6 min 31 sec " " Time to run 30 generations on my 850 AMD Duron (FreeBSD 4.2): " vim 5.8 xterm 21 sec " vim 6.0 xterm 24 sec " vim 6.0 Motif 32 sec " nvi 1.79 xterm 29 sec " vi 3.7 xterm 32 sec " elvis 2.1.4 xterm 34 sec " " And now the macros, more or less in top-down order. " " ----- macros that can be used by the human ----- " " 'g'o: 'I'nitialize and then 'R'un 'C'ompute recursively (used by the human) map g IR " " " 'R'un 'C'ompute recursively (used by the human and 'g'o) map R CV " work around "tail recursion" problem in vi, "V" == "R". map V R " " " 'I'nitialize the board (used by the human and 'g'o) map I G)0)0)0)0)1)0)0)2)0)0)0)0,ok,-11k,-,R,IIN " " " 'C'ompute next generation (used by the human and others) map C T>>>>>>>>B& " " " Time running one generation (used by the human) map + <1C<2 " " " Time running N generations, where N is the number on the current line. " (used by the human) map z ,^,&,*,&<1,*<2 " " ----- END of macros that can be used by the human ----- " " ----- Initialisation ----- " map ,- :s/./-/g map ,o oPut 'X's in the left box, then hit 'C' or 'R' map ,R 03stop " " Write a new line (used by 'I'nitialize board) " In remembrance of John Conway, 26 December 1937 – 11 April 2020. map )0 o- --....................--....................- map )1 o- JOHN CONWAY --....................--....................- map )2 o- LIVES --....................--....................- " " " Initialisation of the pattern/command to execute for working out a square. " Pattern is: "#<germ><count>" " where <germ> is " " if the current germ is dead, "X" when living. " <count> is the number of living neighbours (including current germ) " expressed in X's " map ,Il8 O#XXXXXXXXXX .`a22lr map ,Id8 o# XXXXXXXX .`a22lr map ,Il7 o#XXXXXXXXX .`a22lr map ,Id7 o# XXXXXXX .`a22lr map ,Il6 o#XXXXXXXX .`a22lr map ,Id6 o# XXXXXX .`a22lr map ,Il5 o#XXXXXXX .`a22lr map ,Id5 o# XXXXX .`a22lr map ,Il4 o#XXXXXX .`a22lr map ,Id4 o# XXXX .`a22lr map ,Il3 o#XXXXX .,a map ,Id3 o# XXX .`a22lrA map ,Il2 o#XXXX .,a map ,Id2 o# XX .`a22lr map ,Il1 o#XXX .`a22lr map ,Id1 o# X .`a22lr map ,Il0 o#XX .`a22lr map ,Id0 o# .`a22lr " " Patterns used to replace a germ with its next generation map ,Iaa o=AB =BC =CD =DE =EF =FG =GH =HI =IJ =JK =KL =LM =MN =NO =OP =PQ =QR map ,Iab o=RS =ST =TU =UV =VW =WX =XY =YZ =Z " " Insert the searched patterns above the board map ,IIN G?^top ,Il8,Id8,Il7,Id7,Il6,Id6,Il5,Id5,Il4,Id4,Il3,Id3,Il2,Id2,Il1,Id1,Il0,Id0,Iaa,Iab " " ----- END of Initialisation ----- " " ----- Work out one line ----- " " Work out 'T'op line (used by show next) map T G,c2k,!9k,@,#j>2k,$j " " Work out 'B'ottom line (used by show next) map B ,%k>,$ " " Work out a line (used by show next, work out top and bottom lines) map > 0 LWWWWWWWWWWWWWWWWWW,rj " " Refresh board (used by show next) map & :%s/^\(-[ A-Z]*-\)\(-[ A-Z]*-\)\(-[.]*-\)$/\2\3\3/ " " " Work around vi multiple yank/put in a single macro limitation " (used by work out top and/or bottom line) map ,$ dd map ,% "cp map ,! "byy map ,@ "cyy map ,# "bP map ,c c$ " " ----- END of Work out one line ----- " " ----- Work out one square ----- " " The next three work out a square: put all nine chars around the current " character on the bottom line (the bottom line must be empty when starting). " " 'W'ork out a center square (used by work out line) map W makh,3`ah,3`ajh,3( " " " Work out a 'L'eft square (used by work out line) map L makf-h,1`ak,2`af-h,1`a,2`ajf-h,1`aj,2( " " " Work out a 'R'ight square (used by work out line) map ,r makh,2`akF-l,1`ah,2`aF-l,1`ajh,2`ajF-l,1( " " 'M'ove a character to the end of the file (used by all work out square " macros) " map ,1 y G$p map ,2 2y G$p map ,3 3y G$p " " " ----- END of Work out one square ----- " " ----- Work out one germ ----- " " Generate an edit command that depends on the number of living in the last " line, and then run the edit command. (used by work out square). " Leaves the cursor on the next character to be processed. " map ( ,s,i,X0i?^#A 0,df.l,Y21h " " Delete 's'paces (deads); " The number of remaining characters is the number of living neighbours. map ,s :.g/ /s///g " " Insert current character in the last line map ,i `ay GP " " Replace any uppercase letter with 'X'; map ,X :.g/[A-Z]/s//X/g " " Delete and execute the rest of the line map ,d "qd$@q " " Yank and execute the rest of the line map ,Y "qy$@q " " Yank the character under the cursor map ,j y " " Put the current cut buffer after the cursor map ,m p " " Delete the character under the cursor map ,n x " " Replace a character by its next, A --> B, B --> C, etc. map ,a `a,jGi?=,ma 0,dll,j`a21l,ml,nh " " ----- END of Work out one germ ----- " " ----- timing macros ----- " " Get current date (used by time a generation) map << :r!date map <1 G?^top O<< map <2 G?^top k<< " " " Turn number on current line into edit command (used by time N generations) map ,^ AiC " " " Delete current line and save current line (used by time N generations) map ,& 0"gd$ " " " Run saved line (used by time N generations) map ,* @g " " ----- END of timing macros ----- " " End of the macros.
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