G-(C)1990 ~PCP TZJwPCP-VAR TZJPCPCALL TZJaPCPCONN TZJ2q'PCPDATA TZJ5VPCPMAN TZJ;PCPMENU TZJRbtOTCJ45 WZ `aF [This article was originally published in issue 45 of The Computer Journal, P.O. Box 12, South Plainfield, NJ 07080-0012 and is reproduced with the permission of the author and the publisher. Further reproduction for non- commercial purposes is authorized. This copyright notice must be retained. (c) Copyright 1990, 1991 Socrates Press and respective authors] vPCP.TCJ## @PHЀA$LR$ @h/E㑀 AʆIA0 Qi7 8gIi6g#IŽf79:Nl6LNƓ *o #G7Nz Lf)|a7 Yg6OFyê!d2sIa1esc~k71n<6&ʱǏ.WʗzUvbw}֨׳t9a;O%9$ye1Ua fǪdQ!rOT2*bD^JC#)_ z|&pA&\(Cdm̄\)bfdA*3՘ji`@" H)ƾHb ?7oK ʅ6ʈBA8yF!T\ H*P'hh<"XL ΡoaAL @%]h4 qf,Pc xnAɨ+O@ E+=/;o^%RH$(hUgVj]kU?}b:*[ANϔ DxN !@-8pFGITÚT!%@.NC4)@A ( N EL6+LjzϬ. @,۶G]0]q !bif.Xnyzp!8*NIa:RTk%hT0X'w /^W_ aҏEWv|ѣ~5eR:8d)  k(vPCP-VAR.TCJ"#"#  )o9 Sg2gCgSia9bxɞB'S aA`E$'I)dFD@A'A9@@o: y>PB($A)y(n:LP!cbs#7Îq A23)y]Se7 u D,@0rAS1M 3:(Jc',-%9M]ѧE*pE,Csg]7fSbb̻]nx~,4 x Y% jZxlhFaf" B%1Giqqqxe!1 bƨlE\=Z ]o5 =CFXGYKVنLo \ƑFUafN%$3bA@ QǑt%k[PQʂZ!Xg&HQѽcTFUF0CG(Ջ fKDuCmrZPbرҷkֻ} A*=Oرjl1gqWVS4pkFmRC,V,vfnasIVTmWF~!1fG6 ر p1pCl[pug( N<vPCPCALL.TCJ### @ i  Axl/0H$@T4Nbi8)o9dCANt2$)s9NG 1HH Jn0̔IҎa7WFSiw' ". 2Kz]ў{ lfʆ paݧ!@Y)ix F$-̨ GA0 < B=5K^{_nъODNkS-qk}[ ëP)Y,,D_[a;q% =-%im\fYJ ]cf>ihi+llhIIiuLxx2+9yt!ӬSONY R%-&l,Ǹ1!0+7Pc =;c$'!:ҥTBlR!ۻInؕR YAnm5u!5\zcΛe:ߘQ?yp6B)!P-7%ʹmU{:Kmuṵ2T eAN)_bp'}O@`8tG&C4^YR~¿^wJhP<X^`BdhurU,ac|5wƂF ^vFEZU^d,@ ~SUMekdL-UUfAW':,T6q3%b<@D0SD$1A?KElseF%1Y/EHEX@^AQ-0sCQBVү?(ya~X74u621cPGE DH{Gm"%qi"YnqBB33)QPN@P$hge'c1bXs]#heE79a PE> @YM0bOhcF6MLXu=('v()k1PXT0,s,6mnE %dw3蹋 y)PNBZ  n\%5߆(&gadaivPCPCONN.TCJ9### @ 'i  !xp/0H$@T4Nbr:Ig#IY%c2s:M$NyMALb2M9a1̂(.M0C9O"rn2ΆS$o!B /7bPCUn)mMi`&HDR`O'-v~,n`$S9yixJmE#|;6}ëo&F0:GHA"B!QqV{ `ryPAAKcvPCPDATA.TCJT#F# @P"Jq4Xc"$A* '1u:MQn:es :%C @f7ss:Mym"L@E0 yNy侇97qr4LF)u"!@\:gdP%$P"B D2X=ʎKR]2ͦ#)#h\HS ɺp둗3IǵE3,P&IJ=!M O, (GSq5i^/w@uQ=fڴ  1) PoTn`pG1wQA.AGc CЈYJQ9B" 8 FdS!7B;GQ-G6l E^C`(ipQ=e Rf&훝U6sGEu;]WyiQmEq~e9[S<jNlL\e2Ay,\b @w4()ve(٭N˜ql(_ '9I֭rc)dSl(oP{5AvN4r9f3-ɍsM-KH:gB?,iΆaӗrT,ziAOSHTZX4*K(cb@hFṮUUtp[DukeHZo&'JR}uٷp߱S 1VA2T1 yO`N\5tG!>iIM\Zi tS$*-0`TP đPYA\ p= B=9T1ANXe80ҋEv#wndA)Qkd䐉a$;Icv@e:eL&(u\{\6tP)]l,s*VWeCdߵ UQR喜҇9ySW-X[ZR<\@1%щtGW͋{БT!`E @Crqn C%h"TLA(,):`o!hLQ`*bRt4dj0AaE$~)I.h'PYK8 wЎCleDPI ƌ9hL=Ew(B} B#ɔP5c /"u 0C/DH ``#3l` @BI8'@#H& tn*6˘/ aJBB}I)K xNW`BZ^PA(nza PTcznjS{"A<XɀNZ6c9xͤs")/)§&%cxE&o5$Qb,zCH: )?gYXMfFLi3gsTΑԅ t-P9TH0haH"̈N få aYae+MAl## 0GcSDX|)DZPrTfpsUphDȗ@ M! (&"NlfmO 4P&,cgN3 K œyj>W;F50@* )ImeVLPOHC$TVp2Fl D m:.<(JW+9߭a<&P{;( .3O.p{X4!IΫ8ז p %H q 8`</N 2y8p9Zp&D)7Il[]7\3ctZuO,@ a.dABBK RuV7:ޠfNʽX&b Ǘn^Xb4 ̰#5w a . @$qk0k.;}LY1pQs5/OMe iF<(|u`4 c nB97 8~wN-0Xl %mBcq}[QsR) u"n}`(DPg\4')9Ii96LV)yq9J/2m}DHPTSQ%Vuoa Fh;:Rz#Uaӎ%4>Hj]2 Q\j`i]Ԛ,B]L92fF`(vhs1j/׼?j( Æ7KRЅC{&ؖCLEd|^T]̭[{PMZ_nsmۏj̰b=jJKjT˜hKA{@ffn?}ss*eu9?0<ޢɛa.Bpi%=@RdWw"׆iLg>ׅ[Fd@ Wd}#dGmE4m N/$}S8%pP/l(00-SqB$"QP,b9*E({`}{P}7!6pe2Q5@0K$8L2Q8U (c)2tAxYs"S``APX$&K!Kq0eq0l e3 hxa|(7"5wVAVnW".&""$0a+-ѝ$I-5@KKKȎ(:X@䏂HXVRXeMw3qX:nqeN4NdDEJOȟ8'OὋPu KX6P-HO^/@)@42B"{T7.CqO~hykVAVBq T;ؚx=YR_FMF mYDC?@%G>U_i"Sh0M3Q 'vPCPMENU.TCJ #@# @P&IQt0  Axj/0H! G@G' })1M,u0ak %:p)A)kTTé&ΆODҴ g{RHCDIT6>A;~dɄj}䜔ЂI P٢RW,]p?+ 7AE($SO 0<vUQL1P@ ĈYG'aР.lK.Uŧ&Vp|M)z`0< e6S{}RQ# ѥ(ҷ;Oe7ٛK!$SUH$y,%I0Y)OZrDu#4ORiN`>DApGp(C/9{&‚.š5\ pԱu ΰm11mThἙ̳;+jvLV!A @DT堡ȧfCa$Z^{FZ_Oy<; ĂIHoBOBEC-UX'B!e a1: }9+%}:P m, pv&B=X C=t \\LA := 31!rTe@@9f0B -GE.C87Y6C˰" YYY;/w]m/#2z 堻5a͈"P!*W F؞FϐKhi$߄\R A$"+zHWۋ\(G˗2o\ u 2ya:`5<8vTCJ45.WS $ $iLs:Mn2 LG()LX0T4ai 9H X,Ng3h5$E#)o2LfS i:)iM lffFPa5rd4x Sc9NAU9Mq@|w8 a9CIQ'm8j#)YGS;\e9MC|MΛ 8㬗DN&[G&axJcn]1oQo VXogZll qg= FFagwah tݠsQ`cPixYTFnZNJ(Ӝ ^Ql9tE{݉CrXAeGFTY$ XNFѽY%G`mlݗyޙ@rH~arB'-bW\5z5Fop)l)ةx2Vj_K[:dXeYChByupU>,hi37f|74JW!$j8H p4=% 8s¨ܫF,AgZa )e^P+DՁ_dQTpNh0g`qm ï;AFgHd WXiE 6Z9ax'nI++ m0Eb934tjPN@BE@R@w$$~0!$&PiY@BpGu9!@ʞh{unm3zLU5̫0Қ (E,r0)Ya<Č^ӛV)m[0`lB,(@ca,"S*if^?vm'pOѰE4~ zYҘ` * TbAxd jȹh8h 8z~aLNK6[j IX+FM(Ȋ=bIZs:9#ԴYA,8apdl'` r6G:>ʈa*m<<:i):hl'^xKIm.K0Ep]mf7*Ĵbpe:bΌU„]iyRƤ:o +eEP+U$tm" V?eam%Z}]gy2dQm(mpBspQg7_,MwKT #: 211RMٌ+GapaJ$+t)mQ@W鎮o3 *Jq_ـV n()- E>w"{ 9Rƴv qZM+;v1 &ZKD1^y? _^!te'×/H ~-2L`|41s{|F'?DMRlUZdrU &%MR*˲0PfM܇\,ptT!&_N*56H8u+::0ha>Et4֡F9И 03dDOq Ҧ7j=TP}C`ߖڕ k >V fGՠ2ŭfTNFɪǶQ<"VTThxj"*+Akag6yZOU:sC!2O >qpeFDltxSf{8rt;n$16AnsYBQqejq4Co0B)y;m(~7.Cg`szWZ!0PPXT QXq2C#^ 1Fc:#Cg$8`OTuY?rSi>1~#-$.CAPSU(iq$1E>:34rv$3T$W+ ~ *UJ0aa U.{&#F/o$9DTAe]K!i0kR.nfGI>o0o%Ta֓qXQ|XlR3RE kSm4E@A 7 #qXZam@*Bqc4D-7#!e$Ń8YBCi  %NEoqy؃%&TOǝ*gTvEH%9#$F(1rcyPRx&y1oU9Y-$J!dZ4w%(@r4Ӳy71r2ZS'QpP.Ÿ)gz)/csi1~<u%X@ÆategiM)axc!,9'Pi6eA4CР/Wj@SUt$ &ah7:hkD G.s c:c3&w`R%ƛ>tUKQf&Qה'5G2:8V$UXR': e5#Q3;C{ &s4ixy5&Jc8:Rk+q 14" Y2feqA2ǨUwi+F]6J)Xqx@r66>f^0H?!IH!+,'>m2/y059SրADgS/+o(hA:F Fn?#R`>PbD1"8;v;+|m5yZ@UyIpAI(nE2VDAާc7Yuo4 +'_u"=ѱK'R(0Kd x;+QNi`wR11(GjxH-)YӞBZQxPF!Y鴆X/;1Cj9鮫1yaخSZZԁPsBS0920L X)S6DjKua}1XkUQSKaO\& A$7TP$5EAVX(Z8&ao34 b#HCd#&t"z 8"{Q~A.7m!rl0-3 R$g]V0LF8x$A5hΎݖ V1Dkl7`tQsr&\/|K.zx}Vd2#(fjk0-RDY84DVⰿ:f\1n; Pp\Q>(d(`XWqp`t>W8+X&d l\-G6r؇x}e$@0bȒa'K:7?Bd~6T2ra"-q?2lq+@I J5xs04=9 3 -D!:+@c IVGTh "3":%] Ej.IpXø!/4LFtE(t.{3M4B6T"oa>btIu`unWȦ9rU2RYqZ,[|<9}g65(Y!0( A0VQa ؐIa9-e1heR ;0mm}huGGZe[ã3)gd(-vB60/k1#Tzck)9pçDKaX؇X@FcO|.[w^E'};YA f*dvTgD^U^&%邩7/"ST9#CW>BF ,j&I&Nҩv~d 33I3*xuEf琢R(Vr1#O s)2|CKsmyqfJJp>֡Ȍ ${[hӐD =r`r)KlH<493'@pe?g#bUۢq2&1䑺crÀy P$ rC'6&wjV  NGm|y&"uY mID0P%1UE4b={^{Tu=Dk,T('v_C3γ92%wif03VCs`+H~lN(BIxy 9omk AG- g7$#3@Y䯶UyTV9Aj_nENX-xQ.pDgx %a8u1MG-j;N#a@J"I3 60 B:g#~o"ML;dDAoߚRa>umnŻ)Qhzco#釺9Ntn?x*[!rC8m8c& Ŗ$\m@"Nu V;}k$2 ==x b%O<3K%;w$}l3]  АUkD |@ v@@PBeBfZ@ - \Uho<А+@0|@P|P\@ A a`\@ E@=vo@\@ ҹp|@ av@ İ s \8N3- \@ =w(Ź=0vPv|L.\CL  pVI^Q`v ONPV)2 1Xۇ^˓Q;6K (:wlD*k K.5F2y_/Hw7I&k̘k0X+O#MP#`\s | NSM4=RJgKgv 2$X3}qZ X"w*)j8qVPϏC#%RY.϶ FC.tȤ"dWF| røѫ8?lHȃf$sm?ؽ38ЊA?BT)En~smU ͑Y"KHN=\Jds&]&] mbN9/6 w|F&}f^gm@C:Ax,?VBG Vtegm*KH R$ާsi,SD+%1"֔,C !I5%#U*YKHC@&%[Ia|8ة~PU.͆bz0s" R[O RNPCH Dy-gf L6?SH!:e$NX}BKb{9E `sɣC#UC3B/׊E"/aeD2ÂIu؞J??>i$/KT7onOpB`Tn@V ic-Orvo'TCa@?!@_'v$-@W>@wN~u/!S~vPpVvyA KX&s ^?:am!k?Sa& O 6HD\IiCF|tP>_QCWa%5=?|yAx6>s#9¾BcBE(Y 0W#gL[9!T} $s>1ӭ38!KͱMH2&Y10Mt'*4 Ot?k"v}aG;}fYLoݥcu:=y>{Q~L  Z0U( 1b4Wx UdSW^1Kk&o:]%D:c1V:Cu3ϙGA63;{ĀQPC `l1QlvJb,*}PErS0`sEh,s`^shaob1)A7TB.o"2l1(\ݓ>)LJ 1HPnwu=36aɺP͕aVT'Hbz9.ȫ=G1SN:bdFDI~yPQnB="lz~gh<8!AIE.1n9zWȢ0($\`lU PcK΁`i:`tPTH*=wzrS8*Р0 bAjbY4=8t\Xi8(_PWZ1,4#+`r8@+{m2z$_aoKT*/dI@e1B/")tMs)iK&ko(ÊCь#}e0$")=)p%D•.ǵS2>DAQ8nW4DǕYNv 2M F!ح#]gCk0nn[0 :MnҠ[%N^[3WsӘƩ[PFpFT±a^/X;.ѫCd~­ ENUr(]#p ^ƅ< Ѕ'*U":MnҠ1|Ler$Aa$Ј3#:xw< jDIlsfvw-t2I:Q UAn*T<A@E+b"=*"Yȯif16$[H*`T)B#,zclt~(vBִþY #!f=~$]cWxqK" /&(0iGE2(:6)M0eMF6G6K6*Sq3KNQ։BB2y)FCNVÙ&ADa%?rR!f}9:ݣRadJ:kT-*424F;#-!L%Qz6Y4S_ 'B{`DCd]+xC1R_:@cs K#}A2Kb6Vԟ9`=R?3V?Ռ yS Ne/ܔb0ݑ:V 7B+0bFBF®sD:[oYs]qJz_k/f, ,pi,fydp8#,2d&j PZqK-wN?[oc=DdPSHEUYC$L#aR1~w)1Ģ6FtA9_pԵev*89Ϧ5/42NNN2>m(IЊ^rZ[Sy?!TH!3K$FT.$(aMJ" zqGufhz::94"F&IؑӞB77te55~I \@P n{2q INC)/=&gn#GK1+lk9@6¢S) m-#SCoJ"#r&i:TI2xSey$JGh`.? h$7^E j|vo.rQF{sK 7:&d;ʸ( ZSo-1aSvAG\*6k/wڕDhWPd+Cyǔ"h޳tYõh!JWR(c8id%5:yꋿ|ȹ5AG6_/o?6w"S k.C kd968켆Ѳo'*0FG"M2s)lpg:)Įe,qS:ѳE]IISHCz!2.l+o #qS@Bѥb18*J;BIK3biàr<6s0?[;j^PTlb.EPJY"(a0-piauA2L*c C-o3@n 33Cu樾Zv}Js*-#3)>VLwHX&?lVE%`A0)P9_@_\E`UXpII0c1FZcTᄜ0aG&:Sr ciE_ DN`A .@C dTH W QFq4 'ZSlK w"Tzi@*;%9QS,JQR.еË sB bĥPbĠ2x?5jl%bĥЊbĠ37(̿;zd ٲZ,Jh'̥M:&_d+(lbĪ[B]+(cё[ ٲZ,J cA]eP5K Q-2={ka,/ 4Q<0rUn,PO  o 2U[XzdN 78-0Ai[`O0qU4!}Od!P4!V}Ν!a7E )T6pn qXKy|TRr_pq!()E[9Adq199^=5IPf#ds[ Cf