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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 08 78 6c 62 66 75 6e | 2e 63 00 00 00 00 00 00 |..xlbfun|.c......|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 54 45 58 54 00 00 00 | 00 01 00 00 00 00 00 00 |.TEXT...|........|
|00000050| 00 00 00 00 00 24 44 00 | 00 01 5c 9b 36 23 b1 9b |.....$D.|..\.6#..|
|00000060| 36 23 b1 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |6#......|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 9c 1e 00 00 |........|........|
|00000080| 2f 2a 20 78 6c 62 66 75 | 6e 2e 63 20 2d 20 78 6c |/* xlbfu|n.c - xl|
|00000090| 69 73 70 20 62 61 73 69 | 63 20 62 75 69 6c 74 2d |isp basi|c built-|
|000000a0| 69 6e 20 66 75 6e 63 74 | 69 6f 6e 73 20 2a 2f 0d |in funct|ions */.|
|000000b0| 2f 2a 09 43 6f 70 79 72 | 69 67 68 74 20 28 63 29 |/*.Copyr|ight (c)|
|000000c0| 20 31 39 38 35 2c 20 62 | 79 20 44 61 76 69 64 20 | 1985, b|y David |
|000000d0| 4d 69 63 68 61 65 6c 20 | 42 65 74 7a 0d 09 41 6c |Michael |Betz..Al|
|000000e0| 6c 20 52 69 67 68 74 73 | 20 52 65 73 65 72 76 65 |l Rights| Reserve|
|000000f0| 64 0d 09 50 65 72 6d 69 | 73 73 69 6f 6e 20 69 73 |d..Permi|ssion is|
|00000100| 20 67 72 61 6e 74 65 64 | 20 66 6f 72 20 75 6e 72 | granted| for unr|
|00000110| 65 73 74 72 69 63 74 65 | 64 20 6e 6f 6e 2d 63 6f |estricte|d non-co|
|00000120| 6d 6d 65 72 63 69 61 6c | 20 75 73 65 09 2a 2f 0d |mmercial| use.*/.|
|00000130| 0d 23 69 6e 63 6c 75 64 | 65 20 22 78 6c 69 73 70 |.#includ|e "xlisp|
|00000140| 2e 68 22 0d 0d 23 69 66 | 64 65 66 20 4d 45 47 41 |.h"..#if|def MEGA|
|00000150| 4d 41 58 0d 6f 76 65 72 | 6c 61 79 20 22 6f 76 65 |MAX.over|lay "ove|
|00000160| 72 66 6c 6f 77 22 0d 23 | 65 6e 64 69 66 0d 0d 2f |rflow".#|endif../|
|00000170| 2a 20 65 78 74 65 72 6e | 61 6c 20 76 61 72 69 61 |* extern|al varia|
|00000180| 62 6c 65 73 20 2a 2f 0d | 65 78 74 65 72 6e 20 4e |bles */.|extern N|
|00000190| 4f 44 45 20 2a 78 6c 65 | 6e 76 3b 0d 65 78 74 65 |ODE *xle|nv;.exte|
|000001a0| 72 6e 20 4e 4f 44 45 20 | 2a 73 5f 65 76 61 6c 68 |rn NODE |*s_evalh|
|000001b0| 6f 6f 6b 2c 2a 73 5f 61 | 70 70 6c 79 68 6f 6f 6b |ook,*s_a|pplyhook|
|000001c0| 3b 0d 65 78 74 65 72 6e | 20 4e 4f 44 45 20 2a 73 |;.extern| NODE *s|
|000001d0| 5f 63 61 72 2c 2a 73 5f | 63 64 72 2c 2a 73 5f 6e |_car,*s_|cdr,*s_n|
|000001e0| 74 68 2c 2a 73 5f 67 65 | 74 2c 2a 73 5f 73 76 61 |th,*s_ge|t,*s_sva|
|000001f0| 6c 75 65 2c 2a 73 5f 73 | 70 6c 69 73 74 2c 2a 73 |lue,*s_s|plist,*s|
|00000200| 5f 61 72 65 66 3b 0d 65 | 78 74 65 72 6e 20 4e 4f |_aref;.e|xtern NO|
|00000210| 44 45 20 2a 73 5f 6c 61 | 6d 62 64 61 2c 2a 73 5f |DE *s_la|mbda,*s_|
|00000220| 6d 61 63 72 6f 3b 0d 65 | 78 74 65 72 6e 20 4e 4f |macro;.e|xtern NO|
|00000230| 44 45 20 2a 73 5f 63 6f | 6d 6d 61 2c 2a 73 5f 63 |DE *s_co|mma,*s_c|
|00000240| 6f 6d 61 74 3b 0d 65 78 | 74 65 72 6e 20 4e 4f 44 |omat;.ex|tern NOD|
|00000250| 45 20 2a 73 5f 75 6e 62 | 6f 75 6e 64 3b 0d 65 78 |E *s_unb|ound;.ex|
|00000260| 74 65 72 6e 20 63 68 61 | 72 20 67 73 70 72 65 66 |tern cha|r gspref|
|00000270| 69 78 5b 5d 3b 0d 65 78 | 74 65 72 6e 20 69 6e 74 |ix[];.ex|tern int|
|00000280| 20 67 73 6e 75 6d 62 65 | 72 3b 0d 0d 2f 2a 20 65 | gsnumbe|r;../* e|
|00000290| 78 74 65 72 6e 61 6c 20 | 72 6f 75 74 69 6e 65 73 |xternal |routines|
|000002a0| 20 2a 2f 0d 65 78 74 65 | 72 6e 20 4e 4f 44 45 20 | */.exte|rn NODE |
|000002b0| 2a 78 6c 78 65 76 61 6c | 28 29 3b 0d 0d 2f 2a 20 |*xlxeval|();../* |
|000002c0| 66 6f 72 77 61 72 64 20 | 64 65 63 6c 61 72 61 74 |forward |declarat|
|000002d0| 69 6f 6e 73 20 2a 2f 0d | 46 4f 52 57 41 52 44 20 |ions */.|FORWARD |
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|00000300| 65 66 75 6e 28 29 3b 0d | 46 4f 52 57 41 52 44 20 |efun();.|FORWARD |
|00000310| 4e 4f 44 45 20 2a 6d 61 | 6b 65 73 79 6d 62 6f 6c |NODE *ma|kesymbol|
|00000320| 28 29 3b 0d 0d 2f 2a 20 | 78 65 76 61 6c 20 2d 20 |();../* |xeval - |
|00000330| 74 68 65 20 62 75 69 6c | 74 2d 69 6e 20 66 75 6e |the buil|t-in fun|
|00000340| 63 74 69 6f 6e 20 27 65 | 76 61 6c 27 20 2a 2f 0d |ction 'e|val' */.|
|00000350| 4e 4f 44 45 20 2a 78 65 | 76 61 6c 28 61 72 67 73 |NODE *xe|val(args|
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|00000370| 7b 0d 20 20 20 20 4e 4f | 44 45 20 2a 65 78 70 72 |{.    NO|DE *expr|
|00000380| 3b 0d 0d 20 20 20 20 2f | 2a 20 67 65 74 20 74 68 |;..    /|* get th|
|00000390| 65 20 65 78 70 72 65 73 | 73 69 6f 6e 20 74 6f 20 |e expres|sion to |
|000003a0| 65 76 61 6c 75 61 74 65 | 20 2a 2f 0d 20 20 20 20 |evaluate| */.    |
|000003b0| 65 78 70 72 20 3d 20 78 | 6c 61 72 67 28 26 61 72 |expr = x|larg(&ar|
|000003c0| 67 73 29 3b 0d 20 20 20 | 20 78 6c 6c 61 73 74 61 |gs);.   | xllasta|
|000003d0| 72 67 28 61 72 67 73 29 | 3b 0d 0d 20 20 20 20 2f |rg(args)|;..    /|
|000003e0| 2a 20 65 76 61 6c 75 61 | 74 65 20 74 68 65 20 65 |* evalua|te the e|
|000003f0| 78 70 72 65 73 73 69 6f | 6e 20 2a 2f 0d 20 20 20 |xpressio|n */.   |
|00000400| 20 72 65 74 75 72 6e 20 | 28 78 6c 65 76 61 6c 28 | return |(xleval(|
|00000410| 65 78 70 72 29 29 3b 0d | 7d 0d 0d 2f 2a 20 78 61 |expr));.|}../* xa|
|00000420| 70 70 6c 79 20 2d 20 74 | 68 65 20 62 75 69 6c 74 |pply - t|he built|
|00000430| 2d 69 6e 20 66 75 6e 63 | 74 69 6f 6e 20 27 61 70 |-in func|tion 'ap|
|00000440| 70 6c 79 27 20 2a 2f 0d | 4e 4f 44 45 20 2a 78 61 |ply' */.|NODE *xa|
|00000450| 70 70 6c 79 28 61 72 67 | 73 29 0d 20 20 4e 4f 44 |pply(arg|s).  NOD|
|00000460| 45 20 2a 61 72 67 73 3b | 0d 7b 0d 20 20 20 20 4e |E *args;|.{.    N|
|00000470| 4f 44 45 20 2a 2a 2a 6f | 6c 64 73 74 6b 2c 2a 66 |ODE ***o|ldstk,*f|
|00000480| 75 6e 2c 2a 61 72 67 6c | 69 73 74 2c 2a 76 61 6c |un,*argl|ist,*val|
|00000490| 3b 0d 0d 20 20 20 20 2f | 2a 20 63 72 65 61 74 65 |;..    /|* create|
|000004a0| 20 61 20 6e 65 77 20 73 | 74 61 63 6b 20 66 72 61 | a new s|tack fra|
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|000004c0| 20 3d 20 78 6c 73 74 61 | 63 6b 3b 0d 20 20 20 20 | = xlsta|ck;.    |
|000004d0| 78 6c 73 61 76 65 31 28 | 66 75 6e 29 3b 0d 0d 20 |xlsave1(|fun);.. |
|000004e0| 20 20 20 2f 2a 20 67 65 | 74 20 74 68 65 20 66 75 |   /* ge|t the fu|
|000004f0| 6e 63 74 69 6f 6e 20 61 | 6e 64 20 61 72 67 75 6d |nction a|nd argum|
|00000500| 65 6e 74 20 6c 69 73 74 | 20 2a 2f 0d 20 20 20 20 |ent list| */.    |
|00000510| 66 75 6e 20 3d 20 78 6c | 61 72 67 28 26 61 72 67 |fun = xl|arg(&arg|
|00000520| 73 29 3b 0d 20 20 20 20 | 61 72 67 6c 69 73 74 20 |s);.    |arglist |
|00000530| 3d 20 78 6c 6d 61 74 63 | 68 28 4c 49 53 54 2c 26 |= xlmatc|h(LIST,&|
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|00000550| 74 61 72 67 28 61 72 67 | 73 29 3b 0d 0d 20 20 20 |targ(arg|s);..   |
|00000560| 20 2f 2a 20 69 66 20 74 | 68 65 20 66 75 6e 63 74 | /* if t|he funct|
|00000570| 69 6f 6e 20 69 73 20 61 | 20 73 79 6d 62 6f 6c 2c |ion is a| symbol,|
|00000580| 20 67 65 74 20 69 74 73 | 20 76 61 6c 75 65 20 2a | get its| value *|
|00000590| 2f 0d 20 20 20 20 69 66 | 20 28 73 79 6d 62 6f 6c |/.    if| (symbol|
|000005a0| 70 28 66 75 6e 29 29 0d | 09 66 75 6e 20 3d 20 78 |p(fun)).|.fun = x|
|000005b0| 6c 65 76 61 6c 28 66 75 | 6e 29 3b 0d 0d 20 20 20 |leval(fu|n);..   |
|000005c0| 20 2f 2a 20 61 70 70 6c | 79 20 74 68 65 20 66 75 | /* appl|y the fu|
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|000005f0| 61 6c 20 3d 20 78 6c 61 | 70 70 6c 79 28 66 75 6e |al = xla|pply(fun|
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|00000610| 2f 2a 20 72 65 73 74 6f | 72 65 20 74 68 65 20 70 |/* resto|re the p|
|00000620| 72 65 76 69 6f 75 73 20 | 73 74 61 63 6b 20 66 72 |revious |stack fr|
|00000630| 61 6d 65 20 2a 2f 0d 20 | 20 20 20 78 6c 73 74 61 |ame */. |   xlsta|
|00000640| 63 6b 20 3d 20 6f 6c 64 | 73 74 6b 3b 0d 0d 20 20 |ck = old|stk;..  |
|00000650| 20 20 2f 2a 20 72 65 74 | 75 72 6e 20 74 68 65 20 |  /* ret|urn the |
|00000660| 65 78 70 72 65 73 73 69 | 6f 6e 20 65 76 61 6c 75 |expressi|on evalu|
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|00000680| 72 6e 20 28 76 61 6c 29 | 3b 0d 7d 0d 0d 2f 2a 20 |rn (val)|;.}../* |
|00000690| 78 66 75 6e 63 61 6c 6c | 20 2d 20 74 68 65 20 62 |xfuncall| - the b|
|000006a0| 75 69 6c 74 2d 69 6e 20 | 66 75 6e 63 74 69 6f 6e |uilt-in |function|
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|000006c0| 44 45 20 2a 78 66 75 6e | 63 61 6c 6c 28 61 72 67 |DE *xfun|call(arg|
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|00000750| 20 20 2f 2a 20 67 65 74 | 20 74 68 65 20 66 75 6e |  /* get| the fun|
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|00000790| 29 20 2a 2f 0d 20 20 20 | 20 66 75 6e 20 3d 20 78 |) */.   | fun = x|
|000007a0| 6c 61 72 67 28 26 61 72 | 67 73 29 3b 0d 0d 20 20 |larg(&ar|gs);..  |
|000007b0| 20 20 2f 2a 20 69 66 20 | 74 68 65 20 66 75 6e 63 |  /* if |the func|
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|000007d0| 2c 20 67 65 74 20 69 74 | 73 20 76 61 6c 75 65 20 |, get it|s value |
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|000007f0| 6c 70 28 66 75 6e 29 29 | 0d 09 66 75 6e 20 3d 20 |lp(fun))|..fun = |
|00000800| 78 6c 65 76 61 6c 28 66 | 75 6e 29 3b 0d 0d 20 20 |xleval(f|un);..  |
|00000810| 20 20 2f 2a 20 61 70 70 | 6c 79 20 74 68 65 20 66 |  /* app|ly the f|
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|00000840| 76 61 6c 20 3d 20 78 6c | 61 70 70 6c 79 28 66 75 |val = xl|apply(fu|
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|00000860| 20 72 65 73 74 6f 72 65 | 20 74 68 65 20 70 72 65 | restore| the pre|
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|00000bf0| 6d 2c 22 25 73 25 64 22 | 2c 67 73 70 72 65 66 69 |m,"%s%d"|,gsprefi|
|00000c00| 78 2c 67 73 6e 75 6d 62 | 65 72 2b 2b 29 3b 0d 0d |x,gsnumb|er++);..|
|00000c10| 20 20 20 20 2f 2a 20 6d | 61 6b 65 20 61 20 73 79 |    /* m|ake a sy|
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|00000c40| 20 72 65 74 75 72 6e 20 | 28 78 6c 6d 61 6b 65 73 | return |(xlmakes|
|00000c50| 79 6d 28 73 79 6d 2c 44 | 59 4e 41 4d 49 43 29 29 |ym(sym,D|YNAMIC))|
|00000c60| 3b 0d 7d 0d 0d 2f 2a 20 | 78 6d 61 6b 65 73 79 6d |;.}../* |xmakesym|
|00000c70| 62 6f 6c 20 2d 20 6d 61 | 6b 65 20 61 20 6e 65 77 |bol - ma|ke a new|
|00000c80| 20 75 6e 69 6e 74 65 72 | 6e 65 64 20 73 79 6d 62 | uninter|ned symb|
|00000c90| 6f 6c 20 2a 2f 0d 4e 4f | 44 45 20 2a 78 6d 61 6b |ol */.NO|DE *xmak|
|00000ca0| 65 73 79 6d 62 6f 6c 28 | 61 72 67 73 29 0d 20 20 |esymbol(|args).  |
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|00000cc0| 20 20 72 65 74 75 72 6e | 20 28 6d 61 6b 65 73 79 |  return| (makesy|
|00000cd0| 6d 62 6f 6c 28 61 72 67 | 73 2c 46 41 4c 53 45 29 |mbol(arg|s,FALSE)|
|00000ce0| 29 3b 0d 7d 0d 0d 2f 2a | 20 78 69 6e 74 65 72 6e |);.}../*| xintern|
|00000cf0| 20 2d 20 6d 61 6b 65 20 | 61 20 6e 65 77 20 69 6e | - make |a new in|
|00000d00| 74 65 72 6e 65 64 20 73 | 79 6d 62 6f 6c 20 2a 2f |terned s|ymbol */|
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