JFIF     "" $(4,$&1'-=-157:::#+?D?8C49:7 7%%77777777777777777777777777777777777777777777777777"H !1AQ"2aqB#R3b$Cr4Ss%Tt&c$!1AQ"a#2B ? }XuAo)8^ IƟ`vUp9jY0Ǧ w)E허2jU`SEKw5]kSno!]:?jc\غV7/9N+{t#8zd/޲3F/=ź3GNquV"/4:{z%ۣI'D@ %88^f}VV)S_2ed^Mx"͟?UC62Q%чmO͓ cq0rŖJ\Õ_Sݶ'|G.q޾D U]nP%EF>˲E"d&'f2s6H]4w IS˶4VbaQ+9]XtNx:M0JNxϙ⟟"{nr;|{%vo\z-wc,*|k}-m55o4W9ؓw߱Yzk .=/oϡȴ^9ҧʹamtQԬZ]4?egjrQ}+)MleE]MPEn!`IK2RUEwVIoͷcp;lśe7΄uN ;rПV8|e\׹9Y-V_G.)XԢOv<;_"ڜ]ߙEr݊'K{KuBJ}KI}24|"v)/ʻo5)6-Tjd7.C]Q&lU,Yk1P4~UKZs|$kX6+屷CUq+N(jlGrpG&UB3#k3\9qfg7O8Kim(AJOO~C#e`i0wĦij$cWh<dtQߺ"NOtG+ZǪ]b5%]v5$)u|qZ柡s-rۖu$MKڎCmN_V'/1u,21pvlc>қeNnֺ|bkl=lǷNOʣlz*]»vȎ[)j[fs[]:s#m6Qt6*Q+`};ßj[F_jcv`r#w}|k<ڞ/r53N8>Kh q_-_??@enſEܥ\D\YAEo+ ޟd}IcY7+t{=ɩ>}i\\JfxzVdSzᔢ]Q^CJի\iceitMM5hڦg')^ et#ۯ"ÿfF->4iؤ2ݷ6#p6^-R̫gETj^I.kӽUp~D9[:/>h> \gJ|ۿؘ>ml9jMK =+*2i=0RiͶۗV{"u]IH`9J_˹KƼK$X-|=ve/ bjxw.9i%NqVJcFYKcTtO,F;%67vYb8֝qq0tUt=DvawsS~~Edzr^F-v{c++ݔ\|9Iy #nOavOY=3690Tcrilwa\˓m$?箵S6U c(.~R7suMhqcMOnKoc*ȣȩEd'J ܜk*_q}%M/7c.|;trddbsdcJev85̤iW Ę 8C# .딖e$sk80^\J众2)Nm~|Idj_ O+6ǻ#(MIz4Qo:օY,:q]̌"lK}{F]ζ)h>ʶ ^ue78_G#rqv$wkk[Q c+վ+ĸZΝFB]VzoiJRke&Kgom_7Wef_7,osJɽE%lzBt>mRs)v8'P0ֲtrOg4p_2`GlhYڦDF/ӚKmtm'P2kqU765fJY:y؊.ox%8V_ִ̌ܞjpqwЮQ;iUcNoOoٸcY w*4soӵkqf$?-jy~0{>?DaL8XL/ɞo+'8 {ʸxգj#Dy)wk̘e۩+%}~;ڼ5xek|y-%ڱ-ʜe:EEScÚ5z|r'&I&яF*F7|[nRF =(4ۖ@. n7@xx:N^8Bg%u/ny6&dR{?8U_Q6Z߯-oh.NR]} qi6~H(j7*uF&l&o8ts]/P89:jW*$w׹Ӌ FxpsCJi.7N q4WU_}7*M#qWiصnk'4ݍl*t^ c<'d:~͗enFQRz9v~ddoTZ̚k7X(wUswO̙fոҁՕ[$IAI>WW~ĪEѢNoeutYߑ-Eixιpxq{FnyfRrjqU᫤]>wPU8)Y-7Wbq㛋w:7ܣ].j%K:y4] %9$I%pT(󨪙VqiYٓ4y~5S/XTDZM2lȪ; S~Kx:(Mn0';-{*qV&|W3S+\֔a{R{s=lYmN9Fn&o'}Vi( ?*qV5ѼCNsM饏zߴ$^O69@ ,$y|jE;gW/u|M?3+ZՕN86յw%|QO㏏S\E#ddsgl+Scl3~~CԕQľ?5_ z߿t11OĶ0>oB9E/SOSk+b&Yn>$툧eg) "!܉(1 uBoJ)/t/,:=7M+1ܺ#CmS^Nz 6[u&]+|Dfj:uZ5-Z^TjMtm>cȳ NdT_,M#Ex;pt۴ͮ#!N iKl!zPծ~$1SiO} HI&g Bf)b%Ko̧kumEnص;V?j>nltOMVۆl>.WueYaw2+qK,?uHiqqSM}~gu3xbcWSy/Xc{%sZ]uaUM;7:cb5G97'7þյW,;$ܛyVjl޻y7S;o6gf.Tг[7/i1Z^rE cUF'P1-?%u&q{fw~27ޡ ^w$?SwP[=R3Y73 4x(Kk&rLȫMKn:RjcI?3Al`vض[POĖSYujj6v+-[xҵ=~zNN>\ɲQ/uufo*e6l;31붏.>w6=7#7dFDc%ƶTbd;2/=?Asr! ~ZSS~I"9y]Hn,ĊJ7S}cK"amCg3yP=RQɤW}t;-{F+v+RɔڎB?º{SV묖kۏmK~%.Q;OfEf_Y/F-V-MdD)m.ZՍ8Y*h[g/6ydmCc[rdfʾ䖗gd$^֍^ʅѻL|<[݉\߯RiJUo';œN?B smS ܹkس,mRE^ѣlJ&.ċ԰YO:޼f\Z'HCѯU[ʩ1ff4S-٥YxTIGLiыr }L)edׂ*l|ٚuoxӿnWkTbbVm zT_'"x5Vިxo1ج^Fq6Sd3ws'/ڞ6m?}1OsRGݝ+,~ڬ%^p1ef5c25vq~﹉ă[r-eq] 8+/ESj}?mUE.xYK3"oƔ^Y9I]I ޑ" &*4.Jâ}ټQbXKJ񽼀ncg`+riܭ_'Bֽp%bX'7cB}WPm|zHָLJhj~E>i~Z$297|_hyΕ&s}ZϷ *j]:v.HK<SP8`Pƣ)r ,}8Wk[ArHgn=о7:J]TTP>OOj J_KyB\Ԥrm嬷ȫr{ݙ5R(FRЪ6q}KLmR'eޖz6[YތesYYL5Tr7s\^rؙV͸컬j5d?yk'b S }kra^ߚRH)[sg.fLM\u= vJQ]rVkZuoN}#G?yjO%|i2fKoӰღC P_Ϳ6Zr{e/m$i}9 G2')YG9KY>|1ӫ +v+i;h\Q@˿Lӭn˖ 7ck>Vr.D0)hC<˄4"0[eԬݭe+l2s3ss oX]1r]+VK vI;mZ')R6e5=/i@]H^Z۬՝EW.jƆf{8mXMV~_̝z^VR}T63}}k3+k3:j1Phlpi{欍BȽ}6w73GtUZv>4eUj$ xz$$D/߇ߟI"uk̜aƪ*ke/F:dһ_PE1ݡkp(5ʏ-ɮ{Yllԧg!ܝ g]i-umεŸxOê^=PR ##XeMy%2L~󜺶Hm ݙ2t_ƶz7'\Z4T<"AM-&xaC]a5.huQ۫$cMμ|h;.J.o߸sE-zU{d];|YLSMvSEneNKr1B[]NeonNߪ$4̘FPrkxޱ=0lr7Q%=$KQ;0r*XKdGۃ*]w-npᬶ\tt4>Dc[Ouo3/)-WҴ xs71eԤm*ٖ웗H''.Cnmy]݊Kra[9)Y#2U6d7tf.[R.GdE>#O_.+-K`{KonR_ÕM/)?:F,Xo1ƽRmz8C]lD %(x+d2Ah+\CCLJ!D65x\ȼv)\Nrp*[YُfL*PyVΚuWA K4hyYdwihNIy#ub?4NDϐ'4 :nFe(o%ve@@xl-k%QƭRP&kεMŪ-Ys2u ]T!}8*TQnZ}v =~mԧyDM&8K>2|Bnugܷ.wvCs̼5F^ubES7ݢM&4Ź-~mKx1((sr!M5uy\q)oy|a)ˣ,A?w"T휳2\F}PR-<2%`~4Z5\W"(USkGpT(~Qj>ɰ쏳ǓSKKx's]nEf'.iݙL>Moƹk7ݭ[.г6lk<;?)#E]xFU7'>vF%R;t:Җs}NSBWX=Y8ث}~G)S^^ƽwR[)/Fm-ڞTK~˓Z]U;RQ=M/"NԝP[-Y9t_8V+}P?Ue{M/O&WWKvc#r'KM'p[±vtpRC/W|7K2Rfm;ljm%Z]^T[6}6iTC }L[uxg7(Z}. SRI)jҞzȶ쳢oYRw$ŷ"J\ǭw{u'R taF{;3hHB\RP(*ZQ]y;;k٥nWbGKv-V?NDҞkd9@z LJ}Kc9C*?V-*[*۸-0.|󲝳ߗZK#%_OFGF$kC$[NNJ7Yn[k~Xzc+Sʲuhsw^^4+nElbƮKD,}YLV=i=|p|_=b5mȵ(~,em#Xƥ.sVoEaWXc.lY uG\m';'*\ӆ}|˯UfQBvo}/"zw + qvMrQ[[AdU2ٽCGgjؖS~Ev%9">$_2Sߚ%ѽ7jX(t#21r{̬F]b()?r[Rı)W[O/6]XL9 vuLh-Ȃ9"'7f!Փ䮿Bf}[lag֧]?Pc#D9EmfK7o*})+n!]qIo^FrNVNo!Eƃd#OP?%ۋ(mPu93ۣ{}2&$%cZ߯LҚY);U afԶd,*'6_?B:R~}^̬~mJ+vC}Ѩe"MY+mi :s쥸;iJeYvBddeK|#5/mzR]F2 JHUU )/S{Ic$=: W)>} @0#URsR=w"L{+ɞ)d|*qq2>[nƨDۋ-G[6½J|{Ѿ4MwyG-Σ Ze{ug>2|'zΤ2%xՑ*<Q̥T')uLkjn(zF-JOR}wn~FV5zq2m'^VS=7Y^RdfeO)>EpX붚w*r*w˿^kڴ{J;K۔sRŶU]p\zn@dx6[+yeH[_m_/I&mv|M5&&-G"v۴^{vg8Y(K_~h0e AxfrzڬkhS/Vy1ϯdW3'͹}{'V-:MW(V/ͷ*E7s\EmEW}bUr'k,P{9?B֫ #[uNrB,wo^{fdF(5tRf.2J-/:~ t0M"d_/c^32*q]yLl^2[ݥZc*vtm213r'tSuM-Խ#o/HF+2VEpmǦޟS?Rs+t:u G8n,Ԛf,hY8SX*rKf>+cpruɬ=DMrXgϸ:~ɲ ~]'5'kElw\=ڞAG&')G9R\_̝1K;nPg&T(ի[^Jҟ"qoӸ.W}3mF>'$<\U6-~?x?B~{^xkpv-vlߣe빹j\(ښsuu6lH(qoaYt?x8}Ie '@b%TݲygV.+O9/W4MsCMuFjYzG.{ds.k(>G~K?ni-=R r}r ?s̥%l5Ϛ9IN6~۩RĢWNʾE[|nb.HY—קWkr1ҺշMNDp)^¸R:w;u1 12]T/Uiʹd%2OC2K*r5S]g凫5 UQ.ȫ– /i91njFkQxuJ1rn%XDžy?s˗վuMGƋ/m^J*RsF))uF,'l{=|nFm9:N\%u#tnXE->e2Y0PũjUȨEŭ|'eʹ[o{Ցms%CGg/}t|snzrvm\g}cÊ94Pvg'L}ّg궮ԱߢO^f.W-sT]M˔ېе<^Н'KuNn_Vl8*Kж^ xsuW51-ￖFzƉT-kY/9wzDޯ/XlW)gypǚjDɨ~{ݤHCim.[>rqE_Uرx/>|L64%aj;fxӱF(K֓J9՞ -K> I_5Enn´&=Oc%o̟IJZF$۲5I9Wݚ n.WTuѲӏ[4U/9.2zX5\j3ĎEsMq4%9.d[7јc9eNa+sjE';%s#ɤ`ףS=WI쫢.Mv:j/[3:rTF_zt:.z%udW%]xܮVz$Vŗ49[^y.խN~M&mx+wGR~_4KC[ʻ:v>03߶v9x-Mȧ$c:lrCWjeg%ֹ_Nh՝Qɏj^ϛr^.>WhlE5yֵ6\W^确]*гc&^NI[oCDn.ߑ!,m&M_/'Mn$s\r^8|uSZZ1|LV<(zq׮xmٚZƏ%.Ԁs^2𱸒O#&,s[mײ9kޖCoSq&俙qxP.N] 2UǎsM2iN.f r[mcQZmFُE{#[TbҔ*sfaSrn^8N<\_'MarJ6 EQғ|F[S'[~q~kmn[_x?B f5Q١X=g(~[Cx}GO ĺo'e)~dq(Ot`sN=~heu ::m'Cjj>~5V柙cyQD%uqEc{[l^U O]b~eŦۑ'W3&' 2V.^D%G S6\wYNO$. O+^ŵG~haEs^=1*bICzFF4O#,Wu3허ekB\I'tWMߩOG3iFz{rgeM9g r] i3gk&u1r/1kVgR-ɿuF .^;3;?3큦bN̂r4ovMkڞ}[:,IVG<};*-2",>K%bK2Ƨ[w!)ˤ;d?4%Ul2ږec4#ōIw^R_/TFX+*FM[F|a'ߚ2SIMeVGn ~&Y Ym(?ԛ],=|сG4yjk"Q^~ԗ^c,qqrg^-:Uc[E8>>k|nS..LBIc>3i|ZEZXAqm nuOm<; X~mrK=~ ƱrSN<U!F΋WS/|t?K)zd} ,C"ovx?bբs3mX3桭X֖˦kFddhg}$ggSo5jL*NdJis$ EQ\v=0HxzyW~FT_Ƶccg,&=_V(%kq+_÷O'[_[Uڽv F $Ξ9n5EN/4Yy/%*} .jΔ`V_6\VͲohzfOgޯzpj}y}v:34WH;+x7ӻu<ݦ"mJ/=>eoD֣c4kXW-[}٬6;t[Na_• _5i5˗sٴ]+e;Joj㼶ۙyLumo5&F)F\ {(sm_M>gzcr)KU̠Ħ=VDd'h;-aŤ9KٰqQܫަazMp4bk9 UX.ͮ]KeS5Uq[¹X0ɦ6]roFjʧ2׏6/C6eQE5KӰmsFnIz&`z팡-ٯ.ixyك?c2//z6M4W[]_"?Õ[? Vfvӳq]I5(d|MʝzcC*mN>B2gD+><e:Gh %UkW%zJ8k_ˠ=KFRfw{sŖ^q\/{v[Ω}gLjT[t_ޕg6G~rkkMcSRKբ54?SAûO1o%[>5/R~CioNdNʛćh>f6H8c/<1xd[ŦCEk.9"ej?w&O6^ژR[vrQ.z㎩f6:V8}hi2z~ s-w]+|I9s_C~>-S&9ZFVLf7-d'pՠplJ#mm؎s(?Ʋ?/A%_sXuGNnR}_dq>1ʍ|У3]NXYZʷ/&ܛ彖LS? 6]"_t5qP5Kq]^m91jW暹U6-5WU澦M0˵f2ӪǮ.P~? _nEJTcTei)ٳrۣ%x %gs}7l9'tb~dXst# r?}Weaq>=+to)7،E*vn\e_,\NFxcivz]tM˼?Oԝ2Zrλs-ĺEtonIIfm/9^[^EBUjOnr6vI& l]%0")2䒶-+R*zyX<> -X9GUo^xYQ8ιvixٔa\t)hv}ьոVU~tK,=_wLLa?TYIo]$`N6cbi?#7;MRt<.~Q-mob\\g5췍 ڌ_?8nfJN/Y͢n3?_sϩ{HiְPo'yS??_jߡWi5q? MWȲ)8a]lLˏ--b[TXlΫRy;o5뜾$HW.mm?շG[Ƀ seo5Q}Le%*،«~uU{R$t\^%!weX:G('6WupTS&~8=jo?2_PϖE[nf6Tٯ;GLW)NM[o*\j%.gb|䭹noOX:1R)UTj74˓]D_bʝkzNI.9|^G`KeQ{mOjX/sR7evdgi7qm}ތW&4=~|YY)?7Oj}xXkF×4c.l?i|b[5Ή5j-[Y\z<茲Z$Ff&o;gErǩݦ̪/q[&[/9uuzi;PS^_/?]=ΕqK~ӛ5'NM[m_Ϲc'[oӯE#g߂vvGNRo϶o5Ǩ[ɉtov2~i<7iSȜN(G5+/ٛMTܣukj鷣/$1˒!Mxr\ߤs1ZuMQȌ^]c$CXrj#N/˦Ķ9]Nzê5zi;W,v!ŧD6zğ7uR5^MW}>igl2U2nXo{}_w]&vte\Z3 MEEe/ 2s㗼S_bIղTI}|[Ye/c]*̪9u/DmyNxSDgi `Z?.RFj۪'~.[KVb޺o濡to?E#[.^y=q4F8ڎ/GX\.YW!Z.ѕtt:?gYYyU%Uw~ri>ȦKhg,5/=>V?TrN4aWO,oӕ7-SRi*"dܽpuaVQÞd-#J2Nr:#``ѧWR-F?I-T -cOT2pr?þזgE\Ij~L9%EMoџUؙt8_eYΧWjU}e9y9z/#TT-2dLt3H=ڼcKb'"uIٓ'[[߱F~\2]r%C]^VCLjm[cJNryf}ջ.[DEoRՒb'>fVy_c6[K4Na5>{ɳaw/Uj.Զ_K~?IeJ7OQx3IgFc*جɊǽ-o3Ӭp / ]7V*ENܜ[r/tOJΉw*ʨ*JFN^.WZeLgUwKi/M9y8dkOᛊHxGĶM*&#h/U|6D(uFyE5hYxiSEVm^D|,ۿCj;<*ouOkYpΔ2{x-L] !k2ا#IM'a7:M}M1Y儭Mnk[/;4Uwkkɫ%aɔoXVV$m;2Z4i9:>\Yů= ?[{t6,~!c`Un+dW.gKyIB]l+3kض(\MZ\}>k\C~閹l[ů]VNtƸr몮X+U>v'nv{y7s[г̭9Ctvt% GqT8=wa(6\Rd柮YWv^Fd^\+緉,+=-^S"k:NVu o[_TIѝ椯bF/G㿏dΙ?T}K-T)W>s?3M)V*,;P\,}B u{rDexڥVFfw}47׋w}]Դ 1dmk1V%/'T:Fǒ_TEe[l/l/ٯc{Ƀ[~`zj⾥r}Vܪ{M8Qv]$mU]8J2MngcxY?鑞.9HjxSy.fS(|]MgcK2$(jRQ3XO|<f:Jq4& fw|$N )A8ת99 mFNM*Dϒ NoIa9i9y?:D⻧߇\7ɧ]mu"-˥5/w̨_ 7DK['[2"(%xzT\*GT"+<,yX.lEJrfo?.4N;l>jmZߣ5FdB3\r,t,./S]Q{tm5lӕT~A [fv7Iہc: ΪN7I]2(|o$NLW"#~Dͭ=v-Mv{-lqn{I3xn'6.=DƟܖަ~deQV;k2Ei\[bӴ1_]OhZl朠&t3xkei+c\'ZԪ'hK梿X@cTԫ#emIz6e^i?8 NBc̆f+MׇdC]YSd%lώ8-c7eι/}_con/no\핍~[WNReXMo+اn ?#Ͷ-AUFN1V4!y,{1a$S﹑;Ǚr"__[o) xk}7EI/riwؙ7mR}`|yrEVdo/B# uٳiNQKQkᑑ^d@/=ˑɒ768fsuor9=7ףܹճpMr-$1uySOZN?đrqզ9F q=.!T?ػ bf{¯q=$^:!ES߿ Fu\OS,8e^UוS^hF4BQƺȪw-kF39@X06 Fv=Q^|ƞ5}2tnmG_|Λ(|%](-5>KȁN$=6lq).12 V6m$ׇlOcҫܸ K{;ľ>+Q?Rx-Keu uMy$i B}G*h$Q -W[-&a"[i\}~Ek$<~c{MffS eS.#\^lMiytު]9S{u4 {DFޅSź}R ]R$y;r/P̙3niXMt;&!rxw\ZFmQ"w\L{^۔K&/gr:m=2%5bwE"^e[\$ɟPi!U_rdS2d?=[!(I.rC QZEim%}|YmzZ_ά<ۡLQM|` ybPȏ}?]Eu[`kҫgFb~F}Q8NP>5lӳ^-K%Q}$sx7SvnfTƸ|Kzd'_ⰽח$4L Y?qy32t j2e ȜrJ{mبhۍUU'p#8y'ѝ=i+Tĩo7WYyČkL5؝M=%"Nt}eXW)N.~sv5pɮ sSQ[+-/}kVk'FEɩ9SE&T=&\緵 --tf.9Ѳ4_##_ɱTFV؞~YTddS&s=䟚Fb1._5}~gM'p#,U hs--XG wtԹTi7M:GYK5'^W?C>_Gq/S&d| k_gO ӊiJeHU G_ Êg#),}-:5>V1emq}t}q?meKU:BqJeiPɗ#\$sI} Z生ƫoo=V=pVcUg"%wEm叡vIdhrȔ~F]p58_.,O|'Ɇ^L!c6OWӷ{x9?Fp?ceOuT+Uɵݹ&gx9i퓃sxGIm}_3Īr#:ԣ?4בc[jö#B7KʌWNo)=+c }YvP{lv^r+5Vxx_:~=̌Q}CTy+Wh鸚f$101뢊F[#--Y\i@l)W8/E>8nlj/ktOľ,q*[sE[]:?ZeQvŔɺ|j(Wx,LW=:S?κq%81c)jJvODLiW,{96vr-2}-EH,}%3k#l5gl~x__W Sڎ 8YJQvA=QIWju6-X9$kWЩCI4UWd'&O/Cf=Pi/#+>n$KYst܅y4ʷD^~%~myj,s_4Q}΍Cή;SW:h=Ff{.B/inȇo=-T͸OY2}hlK}.m7-z?,f-/^b\QWs/_͔/3In[6M;l ygؼ!WUË_)D9YL4_>f}ϵ3hV5Oѣ(l8?L4蹥[-Э=7V{&ʢPʼ*3cMz>u4@[oM gKS[jy"Lھzɵfx)GE`ֿ.=kJ>/iˢ[j-qץQC B@o V(ʯG?Bܻ\I>=K-].(vOE.5׮=/Pf^&$caY9{3މ%YOxZ~6Z;;ԗ.NJzş/YϖĜ%ѿO^tY$ν4|e}2ɶU9A؜h˺LrIm%J.|I]kG|DzU k4'(T\9߱^!z -:mW^ <= <^2*;Seq(6ªsHf5ʸO{Ilr~G uJY^k5X_y;5'59O@ƣ̶>pnCOvNwX4oUUf]Џe%MV9Xm9]x'Q=82z)c/~1\~LSow>ﺍƻUql~Sqo羘sk}VjG71kYؽ]b4qnMӡ; w@̇IL㿗[43)]=v*)EH'a񖳋ҎTkxuXGK& ZIR(M8?:ixJp-dmckpu*%N^-7E3='ceE&';_J'Mw𶥏Y9+d9+>!e_Sn|VX -TZu]Ģ/6\ckr /ޗ/z[y.N:*k$ }Yǭ}GUm^-%dm;K_#ctBsg2:8rz-VE|T w.}w9NEPGnoCe8/&3qT}MJ̙Mۗ~哳,-WI_Bsh+~͛vN{ZdYKݲkr%+lo*re-ه?:vYqFfCsqMXRķ{yqgrx.oǓ\xdڗ_ZC9WomX|KmV_%UJܷr$drȳL~MoKyYLic Jq<1$UuٯTד374s<ĕ96춉r9 pGc9=p^:)ZJb&VӝXٽ 0/X& ۳*_ԙƏ.5J 6<$$6B0d_d?hqd>XCe- wO@pg:.>$.Ϣ~L޲|,{-ɪ2.u/Ds-[ُiVIWK5M#Fܭ3?x.)ۣ,wJ)Ȳڣ-#fbdq&Tͧ8Q,YqQ)/R­?\k˔[p_+ogzP[6r^o}_kT}JiJ;<ivEH8wI@MOPʊ\#+$%PDF-1.7 GIF89;
ANDA PELER
Server IP : 182.253.108.180  /  Your IP : 18.220.94.189
Web Server : Apache
System : Linux sma1wiradesa.sch.id 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64
User : wijaya ( 1017)
PHP Version : 7.3.33-10+ubuntu18.04.1+deb.sury.org+1
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : ON  |  Pkexec : ON
Directory :  /usr/include/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ HOME ]     

Current File : /usr/include/gawkapi.h
/*
 * gawkapi.h -- Definitions for use by extension functions calling into gawk.
 */

/* 
 * Copyright (C) 2012-2016 the Free Software Foundation, Inc.
 * 
 * This file is part of GAWK, the GNU implementation of the
 * AWK Programming Language.
 * 
 * GAWK 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.
 * 
 * GAWK 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.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

/*
 * The following types and/or macros and/or functions are referenced
 * in this file.  For correct use, you must therefore include the
 * corresponding standard header file BEFORE including this file.
 *
 * FILE			- <stdio.h>
 * NULL			- <stddef.h>
 * memset(), memcpy()	- <string.h>
 * size_t		- <sys/types.h>
 * struct stat		- <sys/stat.h>
 *
 * Due to portability concerns, especially to systems that are not
 * fully standards-compliant, it is your responsibility to include
 * the correct files in the correct way. This requirement is necessary
 * in order to keep this file clean, instead of becoming a portability
 * hodge-podge as can be seen in the gawk source code.
 *
 * To pass reasonable integer values for ERRNO, you will also need to
 * include <errno.h>.
 */

#ifndef _GAWK_API_H
#define _GAWK_API_H

/*
 * General introduction:
 *
 * This API purposely restricts itself to ISO C 90 features.  In particular, no
 * bool, no // comments, no use of the restrict keyword, or anything else,
 * in order to provide maximal portability.
 * 
 * Exception: the "inline" keyword is used below in the "constructor"
 * functions. If your compiler doesn't support it, you should either
 * -Dinline='' on your command line, or use the autotools and include a
 * config.h in your extensions.
 *
 * Additional important information:
 *
 * 1. ALL string values in awk_value_t objects need to come from api_malloc().
 * Gawk will handle releasing the storage if necessary.  This is slightly
 * awkward, in that you can't take an awk_value_t that you got from gawk
 * and reuse it directly, even for something that is conceptually pass
 * by value.
 *
 * 2. Due to gawk internals, after using sym_update() to install an array
 * into gawk, you have to retrieve the array cookie from the value
 * passed in to sym_update().  Like so:
 *
 *	new_array = create_array();
 *	val.val_type = AWK_ARRAY;
 *	val.array_cookie = new_array;
 *	sym_update("array", & val);	// install array in the symbol table
 *
 *	new_array = val.array_cookie;	// MUST DO THIS
 *
 *	// fill in new array with lots of subscripts and values
 *
 * Similarly, if installing a new array as a subarray of an existing
 * array, you must add the new array to its parent before adding any
 * elements to it.
 *
 * You must also retrieve the value of the array_cookie after the call
 * to set_element().
 *
 * Thus, the correct way to build an array is to work "top down".
 * Create the array, and immediately install it in gawk's symbol table
 * using sym_update(), or install it as an element in a previously
 * existing array using set_element().
 *
 * Thus the new array must ultimately be rooted in a global symbol. This is
 * necessary before installing any subarrays in it, due to gawk's
 * internal implementation.  Strictly speaking, this is required only
 * for arrays that will have subarrays as elements; however it is
 * a good idea to always do this.  This restriction may be relaxed
 * in a subsequent revision of the API.
 */

/* Allow use in C++ code.  */
#ifdef __cplusplus
extern "C" {
#endif

/* This is used to keep extensions from modifying certain fields in some structs. */
#ifdef GAWK
#define awk_const
#else
#define awk_const const
#endif

typedef enum awk_bool {
	awk_false = 0,
	awk_true
} awk_bool_t;	/* we don't use <stdbool.h> on purpose */

/* The information about input files that input parsers need to know: */
typedef struct awk_input {
	const char *name;	/* filename */
	int fd;			/* file descriptor */
#define INVALID_HANDLE (-1)
	void *opaque;           /* private data for input parsers */
	/*
	 * The get_record function is called to read the next record of data.
	 *
	 * It should return the length of the input record or EOF, and it
	 * should set *out to point to the contents of $0. The rt_start
	 * and rt_len arguments should be used to return RT to gawk.
	 * If EOF is not returned, the parser must set *rt_len (and
	 * *rt_start if *rt_len is non-zero).
	 *
	 * Note that gawk will make a copy of the record in *out, so the
	 * parser is responsible for managing its own memory buffer.
	 * Similarly, gawk will make its own copy of RT, so the parser
	 * is also responsible for managing this memory.
	 * 
	 * It is guaranteed that errcode is a valid pointer, so there is
	 * no need to test for a NULL value.  Gawk sets *errcode to 0,
	 * so there is no need to set it unless an error occurs.
	 *
	 * If an error does occur, the function should return EOF and set
	 * *errcode to a positive value.  In that case, if *errcode is greater
	 * than zero, gawk will automatically update the ERRNO variable based
	 * on the value of *errcode (e.g., setting *errcode = errno should do
	 * the right thing).
	 */
	int (*get_record)(char **out, struct awk_input *iobuf, int *errcode,
			char **rt_start, size_t *rt_len);

	/*
	 * No argument prototype on read_func to allow for older systems
	 * whose headers are not up to date.
	 */
	ssize_t (*read_func)();

	/*
	 * The close_func is called to allow the parser to free private data.
	 * Gawk itself will close the fd unless close_func first sets it to
	 * INVALID_HANDLE.
	 */
	void (*close_func)(struct awk_input *iobuf);

	/* put last, for alignment. bleah */
	struct stat sbuf;       /* stat buf */
							
} awk_input_buf_t;

typedef struct awk_input_parser {
	const char *name;	/* name of parser */

	/*
	 * The can_take_file function should return non-zero if the parser
	 * would like to parse this file.  It should not change any gawk
	 * state!
	 */
	awk_bool_t (*can_take_file)(const awk_input_buf_t *iobuf);

	/*
	 * If this parser is selected, then take_control_of will be called.
	 * It can assume that a previous call to can_take_file was successful,
	 * and no gawk state has changed since that call.  It should populate
	 * the awk_input_buf_t's get_record, close_func, and opaque values as needed.
	 * It should return non-zero if successful.
	 */
	awk_bool_t (*take_control_of)(awk_input_buf_t *iobuf);

	awk_const struct awk_input_parser *awk_const next;	/* for use by gawk */
} awk_input_parser_t;

/*
 * Similar for output wrapper.
 */

/* First the data structure */
typedef struct awk_output_buf {
	const char *name;	/* name of output file */
	const char *mode;	/* mode argument to fopen */
	FILE *fp;		/* stdio file pointer */
	awk_bool_t redirected;	/* true if a wrapper is active */
	void *opaque;		/* for use by output wrapper */

	/*
	 * Replacement functions for I/O.  Just like the regular
	 * versions but also take the opaque pointer argument.
	 */
	size_t (*gawk_fwrite)(const void *buf, size_t size, size_t count,
				FILE *fp, void *opaque);
	int (*gawk_fflush)(FILE *fp, void *opaque);
	int (*gawk_ferror)(FILE *fp, void *opaque);
	int (*gawk_fclose)(FILE *fp, void *opaque);
} awk_output_buf_t;

/* Next the output wrapper registered with gawk */
typedef struct awk_output_wrapper {
	const char *name;	/* name of the wrapper */

	/*
	 * The can_take_file function should return non-zero if the wrapper
	 * would like to process this file.  It should not change any gawk
	 * state!
	 */
	awk_bool_t (*can_take_file)(const awk_output_buf_t *outbuf);

	/*
	 * If this wrapper is selected, then take_control_of will be called.
	 * It can assume that a previous call to can_take_file was successful,
	 * and no gawk state has changed since that call.  It should populate
	 * the awk_output_buf_t function pointers and opaque pointer as needed.
	 * It should return non-zero if successful.
	 */
	awk_bool_t (*take_control_of)(awk_output_buf_t *outbuf);

	awk_const struct awk_output_wrapper *awk_const next;  /* for use by gawk */
} awk_output_wrapper_t;

/* A two-way processor combines an input parser and an output wrapper. */
typedef struct awk_two_way_processor {
	const char *name;	/* name of the two-way processor */

	/*
	 * The can_take_file function should return non-zero if the two-way
	 * processor would like to parse this file.  It should not change
	 * any gawk state!
	 */
	awk_bool_t (*can_take_two_way)(const char *name);

	/*
	 * If this processor is selected, then take_control_of will be called.
	 * It can assume that a previous call to can_take_file was successful,
	 * and no gawk state has changed since that call.  It should populate
	 * the awk_input_buf_t and awk_otuput_buf_t structures as needed.
	 * It should return non-zero if successful.
	 */
	awk_bool_t (*take_control_of)(const char *name, awk_input_buf_t *inbuf,
					awk_output_buf_t *outbuf);

	awk_const struct awk_two_way_processor *awk_const next;  /* for use by gawk */
} awk_two_way_processor_t;

#define gawk_api_major_version 1
#define gawk_api_minor_version 1

/* Current version of the API. */
enum {
	GAWK_API_MAJOR_VERSION = gawk_api_major_version,
	GAWK_API_MINOR_VERSION = gawk_api_minor_version
};

/* A number of typedefs related to different types of values. */

/*
 * A mutable string. Gawk owns the memory pointed to if it supplied
 * the value. Otherwise, it takes ownership of the memory pointed to.
 *
 * The API deals exclusively with regular chars; these strings may
 * be multibyte encoded in the current locale's encoding and character
 * set. Gawk will convert internally to wide characters if necessary.
 */
typedef struct awk_string {
	char *str;	/* data */
	size_t len;	/* length thereof, in chars */
} awk_string_t;

/* Arrays are represented as an opaque type. */
typedef void *awk_array_t;

/* Scalars can be represented as an opaque type. */
typedef void *awk_scalar_t;

/* Any value can be stored as a cookie. */
typedef void *awk_value_cookie_t;

/*
 * This tag defines the type of a value.
 *
 * Values are associated with regular variables and with array elements.
 * Since arrays can be multidimensional (as can regular variables)
 * it's valid to have a "value" that is actually an array.
 */
typedef enum {
	AWK_UNDEFINED,
	AWK_NUMBER,
	AWK_STRING,
	AWK_ARRAY,
	AWK_SCALAR,		/* opaque access to a variable */
	AWK_VALUE_COOKIE	/* for updating a previously created value */
} awk_valtype_t;

/*
 * An awk value. The val_type tag indicates what
 * is in the union.
 */
typedef struct awk_value {
	awk_valtype_t	val_type;
	union {
		awk_string_t	s;
		double		d;
		awk_array_t	a;
		awk_scalar_t	scl;
		awk_value_cookie_t vc;
	} u;
#define str_value	u.s
#define num_value	u.d
#define array_cookie	u.a
#define scalar_cookie	u.scl
#define value_cookie	u.vc
} awk_value_t;

/*
 * A "flattened" array element. Gawk produces an array of these
 * inside the awk_flat_array_t.
 * ALL memory pointed to belongs to gawk. Individual elements may
 * be marked for deletion. New elements must be added individually,
 * one at a time, using the separate API for that purpose.
 */

typedef struct awk_element {
	/* convenience linked list pointer, not used by gawk */
	struct awk_element *next;
	enum {
		AWK_ELEMENT_DEFAULT = 0,	/* set by gawk */
		AWK_ELEMENT_DELETE = 1		/* set by extension if
						   should be deleted */
	} flags;
	awk_value_t	index;			/* guaranteed to be a string! */
	awk_value_t	value;
} awk_element_t;

/*
 * A "flattened" array. See the description above for how
 * to use the elements contained herein.
 */
typedef struct awk_flat_array {
	awk_const void *awk_const opaque1;	/* private data for use by gawk */
	awk_const void *awk_const opaque2;	/* private data for use by gawk */
	awk_const size_t count;			/* how many elements */
	awk_element_t elements[1];		/* will be extended */
} awk_flat_array_t;

/*
 * A record describing an extension function. Upon being
 * loaded, the extension should pass in one of these to gawk for
 * each C function.
 *
 * Each called function must fill in the result with either a number
 * or string. Gawk takes ownership of any string memory.
 *
 * The called function must return the value of `result'.
 * This is for the convenience of the calling code inside gawk.
 *
 * Each extension function may decide what to do if the number of
 * arguments isn't what it expected.  Following awk functions, it
 * is likely OK to ignore extra arguments.
 */
typedef struct awk_ext_func {
	const char *name;
	awk_value_t *(*function)(int num_actual_args, awk_value_t *result);
	size_t num_expected_args;
} awk_ext_func_t;

typedef void *awk_ext_id_t;	/* opaque type for extension id */

/*
 * The API into gawk. Lots of functions here. We hope that they are
 * logically organized.
 */
typedef struct gawk_api {
	/* First, data fields. */

	/* These are what gawk thinks the API version is. */
	awk_const int major_version;
	awk_const int minor_version;

	/*
	 * These can change on the fly as things happen within gawk.
	 * Currently only do_lint is prone to change, but we reserve
	 * the right to allow the others to do so also.
	 */
#define DO_FLAGS_SIZE	6
	awk_const int do_flags[DO_FLAGS_SIZE];
/* Use these as indices into do_flags[] array to check the values */
#define gawk_do_lint		0
#define gawk_do_traditional	1
#define gawk_do_profile		2
#define gawk_do_sandbox		3
#define gawk_do_debug		4
#define gawk_do_mpfr		5

	/* Next, registration functions: */

	/* Add a function to the interpreter, returns true upon success */
	awk_bool_t (*api_add_ext_func)(awk_ext_id_t id, const char *namespace,
			const awk_ext_func_t *func);

	/* Register an input parser; for opening files read-only */
	void (*api_register_input_parser)(awk_ext_id_t id,
					awk_input_parser_t *input_parser);

	/* Register an output wrapper, for writing files */
	void (*api_register_output_wrapper)(awk_ext_id_t id,
					awk_output_wrapper_t *output_wrapper);

	/* Register a processor for two way I/O */
	void (*api_register_two_way_processor)(awk_ext_id_t id,
				awk_two_way_processor_t *two_way_processor);

	/*
	 * Add an exit call back.
	 *
	 * arg0 is a private data pointer for use by the extension;
	 * gawk saves it and passes it into the function pointed
	 * to by funcp at exit.
	 *
	 * Exit callback functions are called in LIFO order.
	 */
	void (*api_awk_atexit)(awk_ext_id_t id,
			void (*funcp)(void *data, int exit_status),
			void *arg0);

	/* Register a version string for this extension with gawk. */
	void (*api_register_ext_version)(awk_ext_id_t id, const char *version);

	/* Functions to print messages */
	void (*api_fatal)(awk_ext_id_t id, const char *format, ...);
	void (*api_warning)(awk_ext_id_t id, const char *format, ...);
	void (*api_lintwarn)(awk_ext_id_t id, const char *format, ...);

	/* Functions to update ERRNO */
	void (*api_update_ERRNO_int)(awk_ext_id_t id, int errno_val);
	void (*api_update_ERRNO_string)(awk_ext_id_t id, const char *string);
	void (*api_unset_ERRNO)(awk_ext_id_t id);

	/*
	 * All of the functions that return a value from inside gawk
	 * (get a parameter, get a global variable, get an array element)
	 * behave in the same way.
	 *
	 * For a function parameter, the return is false if the argument
	 * count is out of range, or if actual paramater does not match
	 * what is specified in wanted. In that case,  result->val_type
	 * will hold the actual type of what was passed.
	 *
	 * Similarly for symbol table access to variables and array elements,
	 * the return is false if the actual variable or array element does
	 * not match what was requested, and the result->val_type will hold
	 * the actual type.

	Table entry is type returned:


	                        +-------------------------------------------------+
	                        |                Type of Actual Value:            |
	                        +------------+------------+-----------+-----------+
	                        |   String   |   Number   | Array     | Undefined |
	+-----------+-----------+------------+------------+-----------+-----------+
	|           | String    |   String   |   String   | false     | false     |
	|           |-----------+------------+------------+-----------+-----------+
	|           | Number    | Number if  |   Number   | false     | false     |
	|           |           | can be     |            |           |           |
	|           |           | converted, |            |           |           |
	|           |           | else false |            |           |           |
	|           |-----------+------------+------------+-----------+-----------+
	|   Type    | Array     |   false    |   false    | Array     | false     |
	| Requested |-----------+------------+------------+-----------+-----------+
	|           | Scalar    |   Scalar   |   Scalar   | false     | false     |
	|           |-----------+------------+------------+-----------+-----------+
	|           | Undefined |  String    |   Number   | Array     | Undefined |
	|           |-----------+------------+------------+-----------+-----------+
	|           | Value     |   false    |   false    | false     | false     |
	|           | Cookie    |            |            |           |           |
	+-----------+-----------+------------+------------+-----------+-----------+
	*/

	/* Functions to handle parameters passed to the extension. */

	/*
	 * Get the count'th paramater, zero-based.
	 * Returns false if count is out of range, or if actual paramater
	 * does not match what is specified in wanted. In that case,
	 * result->val_type is as described above.
	 */
	awk_bool_t (*api_get_argument)(awk_ext_id_t id, size_t count,
					  awk_valtype_t wanted,
					  awk_value_t *result);

	/*
	 * Convert a paramter that was undefined into an array
	 * (provide call-by-reference for arrays).  Returns false
	 * if count is too big, or if the argument's type is
	 * not undefined.
	 */
	awk_bool_t (*api_set_argument)(awk_ext_id_t id,
					size_t count,
					awk_array_t array);

	/*
	 * Symbol table access:
	 * 	- Read-only access to special variables (NF, etc.)
	 * 	- One special exception: PROCINFO.
	 *	- Use sym_update() to change a value, including from UNDEFINED
	 *	  to scalar or array. 
	 */
	/*
	 * Lookup a variable, fill in value. No messing with the value
	 * returned.
	 * Returns false if the variable doesn't exist* or if the wrong type
	 * was requested.  In the latter case, vaule->val_type will have
	 * the real type, as described above.
	 *
	 * 	awk_value_t val;
	 * 	if (! api->sym_lookup(id, name, wanted, & val))
	 * 		error_code_here();
	 *	else {
	 *		// safe to use val
	 *	}
	 */
	awk_bool_t (*api_sym_lookup)(awk_ext_id_t id,
				const char *name,
				awk_valtype_t wanted,
				awk_value_t *result);

	/*
	 * Update a value. Adds it to the symbol table if not there.
	 * Changing types (scalar <--> array) is not allowed.
	 * In fact, using this to update an array is not allowed, either.
	 * Such an attempt returns false.
	 */
	awk_bool_t (*api_sym_update)(awk_ext_id_t id,
				const char *name,
				awk_value_t *value);

	/*
	 * A ``scalar cookie'' is an opaque handle that provide access
	 * to a global variable or array. It is an optimization that
	 * avoids looking up variables in gawk's symbol table every time
	 * access is needed.
	 *
	 * This function retrieves the current value of a scalar cookie.
	 * Once you have obtained a scalar_cookie using sym_lookup, you can
	 * use this function to get its value more efficiently.
	 *
	 * Return will be false if the value cannot be retrieved.
	 *
	 * Flow is thus
	 *	awk_value_t val;
	 * 	awk_scalar_t cookie;
	 * 	api->sym_lookup(id, "variable", AWK_SCALAR, & val);	// get the cookie
	 *	cookie = val.scalar_cookie;
	 *	...
	 *	api->sym_lookup_scalar(id, cookie, wanted, & val);	// get the value
	 */
	awk_bool_t (*api_sym_lookup_scalar)(awk_ext_id_t id,
				awk_scalar_t cookie,
				awk_valtype_t wanted,
				awk_value_t *result);

	/*
	 * Update the value associated with a scalar cookie.
	 * Flow is
	 * 	sym_lookup with wanted == AWK_SCALAR
	 * 	if returns false
	 * 		sym_update with real initial value to install it
	 * 		sym_lookup again with AWK_SCALAR
	 *	else
	 *		use the scalar cookie
	 *
	 * Return will be false if the new value is not one of
	 * AWK_STRING or AWK_NUMBER.
	 *
	 * Here too, the built-in variables may not be updated.
	 */
	awk_bool_t (*api_sym_update_scalar)(awk_ext_id_t id,
				awk_scalar_t cookie, awk_value_t *value);

	/* Cached values */

	/*
	 * Create a cached string or numeric value for efficient later
	 * assignment. This improves performance when you want to assign
	 * the same value to one or more variables repeatedly.  Only
	 * AWK_NUMBER and AWK_STRING values are allowed.  Any other type
	 * is rejected.  We disallow AWK_UNDEFINED since that case would
	 * result in inferior performance.
	 */
	awk_bool_t (*api_create_value)(awk_ext_id_t id, awk_value_t *value,
		    awk_value_cookie_t *result);

	/*
	 * Release the memory associated with a cookie from api_create_value.
	 * Please call this to free memory when the value is no longer needed.
	 */
	awk_bool_t (*api_release_value)(awk_ext_id_t id, awk_value_cookie_t vc);

	/* Array management */

	/*
	 * Retrieve total number of elements in array.
	 * Returns false if some kind of error.
	 */
	awk_bool_t (*api_get_element_count)(awk_ext_id_t id,
			awk_array_t a_cookie, size_t *count);

	/*
	 * Return the value of an element - read only!
	 * Use set_array_element() to change it.
	 * Behavior for value and return is same as for api_get_argument
	 * and sym_lookup.
	 */
	awk_bool_t (*api_get_array_element)(awk_ext_id_t id,
			awk_array_t a_cookie,
			const awk_value_t *const index,
			awk_valtype_t wanted,
			awk_value_t *result);

	/*
	 * Change (or create) element in existing array with
	 * index and value.
	 *
	 * ARGV and ENVIRON may not be updated.
	 */
	awk_bool_t (*api_set_array_element)(awk_ext_id_t id, awk_array_t a_cookie,
					const awk_value_t *const index,
					const awk_value_t *const value);

	/*
	 * Remove the element with the given index.
	 * Returns success if removed or false if element did not exist.
	 */
	awk_bool_t (*api_del_array_element)(awk_ext_id_t id,
			awk_array_t a_cookie, const awk_value_t* const index);

	/* Create a new array cookie to which elements may be added */
	awk_array_t (*api_create_array)(awk_ext_id_t id);

	/* Clear out an array */
	awk_bool_t (*api_clear_array)(awk_ext_id_t id, awk_array_t a_cookie);

	/* Flatten out an array so that it can be looped over easily. */
	awk_bool_t (*api_flatten_array)(awk_ext_id_t id,
			awk_array_t a_cookie,
			awk_flat_array_t **data);

	/* When done, delete any marked elements, release the memory. */
	awk_bool_t (*api_release_flattened_array)(awk_ext_id_t id,
			awk_array_t a_cookie,
			awk_flat_array_t *data);

	/*
	 * Hooks to provide access to gawk's memory allocation functions.
	 * This ensures that memory passed between gawk and the extension
	 * is allocated and released by the same library.
	 */
	void *(*api_malloc)(size_t size);
	void *(*api_calloc)(size_t nmemb, size_t size);
	void *(*api_realloc)(void *ptr, size_t size);
	void (*api_free)(void *ptr);
} gawk_api_t;

#ifndef GAWK	/* these are not for the gawk code itself! */
/*
 * Use these if you want to define "global" variables named api
 * and ext_id to make the code a little easier to read.
 * See the sample boilerplate code, below.
 */
#define do_lint		(api->do_flags[gawk_do_lint])
#define do_traditional	(api->do_flags[gawk_do_traditional])
#define do_profile	(api->do_flags[gawk_do_profile])
#define do_sandbox	(api->do_flags[gawk_do_sandbox])
#define do_debug	(api->do_flags[gawk_do_debug])
#define do_mpfr		(api->do_flags[gawk_do_mpfr])

#define get_argument(count, wanted, result) \
	(api->api_get_argument(ext_id, count, wanted, result))
#define set_argument(count, new_array) \
	(api->api_set_argument(ext_id, count, new_array))

#define fatal		api->api_fatal
#define warning		api->api_warning
#define lintwarn	api->api_lintwarn

#define register_input_parser(parser)	(api->api_register_input_parser(ext_id, parser))
#define register_output_wrapper(wrapper) (api->api_register_output_wrapper(ext_id, wrapper))
#define register_two_way_processor(processor) \
	(api->api_register_two_way_processor(ext_id, processor))

#define update_ERRNO_int(e)	(api->api_update_ERRNO_int(ext_id, e))
#define update_ERRNO_string(str) \
	(api->api_update_ERRNO_string(ext_id, str))
#define unset_ERRNO()	(api->api_unset_ERRNO(ext_id))

#define add_ext_func(ns, func)	(api->api_add_ext_func(ext_id, ns, func))
#define awk_atexit(funcp, arg0)	(api->api_awk_atexit(ext_id, funcp, arg0))

#define sym_lookup(name, wanted, result) \
	(api->api_sym_lookup(ext_id, name, wanted, result))
#define sym_lookup_scalar(scalar_cookie, wanted, result) \
	(api->api_sym_lookup_scalar(ext_id, scalar_cookie, wanted, result))
#define sym_update(name, value) \
	(api->api_sym_update(ext_id, name, value))
#define sym_update_scalar(scalar_cookie, value) \
	(api->api_sym_update_scalar)(ext_id, scalar_cookie, value)

#define get_array_element(array, index, wanted, result) \
	(api->api_get_array_element(ext_id, array, index, wanted, result))

#define set_array_element(array, index, value) \
	(api->api_set_array_element(ext_id, array, index, value))

#define set_array_element_by_elem(array, elem) \
	(api->api_set_array_element(ext_id, array, & (elem)->index, & (elem)->value))

#define del_array_element(array, index) \
	(api->api_del_array_element(ext_id, array, index))

#define get_element_count(array, count_p) \
	(api->api_get_element_count(ext_id, array, count_p))

#define create_array()		(api->api_create_array(ext_id))

#define clear_array(array)	(api->api_clear_array(ext_id, array))

#define flatten_array(array, data) \
	(api->api_flatten_array(ext_id, array, data))

#define release_flattened_array(array, data) \
	(api->api_release_flattened_array(ext_id, array, data))

#define gawk_malloc(size)		(api->api_malloc(size))
#define gawk_calloc(nmemb, size)	(api->api_calloc(nmemb, size))
#define gawk_realloc(ptr, size)		(api->api_realloc(ptr, size))
#define gawk_free(ptr)			(api->api_free(ptr))

#define create_value(value, result) \
	(api->api_create_value(ext_id, value,result))

#define release_value(value) \
	(api->api_release_value(ext_id, value))

#define register_ext_version(version) \
	(api->api_register_ext_version(ext_id, version))

#define emalloc(pointer, type, size, message) \
	do { \
		if ((pointer = (type) gawk_malloc(size)) == 0) \
			fatal(ext_id, "%s: malloc of %d bytes failed\n", message, size); \
	} while(0)

#define erealloc(pointer, type, size, message) \
	do { \
		if ((pointer = (type) gawk_realloc(pointer, size)) == 0) \
			fatal(ext_id, "%s: realloc of %d bytes failed\n", message, size); \
	} while(0)

/* Constructor functions */

/* r_make_string --- make a string value in result from the passed-in string */

static inline awk_value_t *
r_make_string(const gawk_api_t *api,	/* needed for emalloc */
	      awk_ext_id_t *ext_id,	/* ditto */
	      const char *string,
	      size_t length,
	      awk_bool_t duplicate,
	      awk_value_t *result)
{
	char *cp = NULL;

	memset(result, 0, sizeof(*result));

	result->val_type = AWK_STRING;
	result->str_value.len = length;

	if (duplicate) {
		emalloc(cp, char *, length + 2, "r_make_string");
		memcpy(cp, string, length);
		cp[length] = '\0';
		result->str_value.str = cp;
	} else {
		result->str_value.str = (char *) string;
	}

	return result;
}

#define make_const_string(str, len, result)	r_make_string(api, ext_id, str, len, 1, result)
#define make_malloced_string(str, len, result)	r_make_string(api, ext_id, str, len, 0, result)

/* make_null_string --- make a null string value */

static inline awk_value_t *
make_null_string(awk_value_t *result)
{
	memset(result, 0, sizeof(*result));
	result->val_type = AWK_UNDEFINED;

	return result;
}

/* make_number --- make a number value in result */

static inline awk_value_t *
make_number(double num, awk_value_t *result)
{
	memset(result, 0, sizeof(*result));

	result->val_type = AWK_NUMBER;
	result->num_value = num;

	return result;
}

/*
 * Each extension must define a function with this prototype:
 *
 *	int dl_load(gawk_api_t *api_p, awk_ext_id_t id)
 *
 * The return value should be zero on failure and non-zero on success.
 *
 * For the macros to work, the function should save api_p in a global
 * variable named 'api' and save id in a global variable named 'ext_id'.
 * In addition, a global function pointer named 'init_func' should be
 * defined and set to either NULL or an initialization function that
 * returns non-zero on success and zero upon failure.
 */

extern int dl_load(const gawk_api_t *const api_p, awk_ext_id_t id);

#if 0
/* Boilerplate code: */
int plugin_is_GPL_compatible;

static gawk_api_t *const api;
static awk_ext_id_t ext_id;
static const char *ext_version = NULL; /* or ... = "some string" */

static awk_ext_func_t func_table[] = {
	{ "name", do_name, 1 },
	/* ... */
};

/* EITHER: */

static awk_bool_t (*init_func)(void) = NULL;

/* OR: */

static awk_bool_t
init_my_extension(void)
{
	...
}

static awk_bool_t (*init_func)(void) = init_my_extension;

dl_load_func(func_table, some_name, "name_space_in_quotes")
#endif

#define dl_load_func(func_table, extension, name_space) \
int dl_load(const gawk_api_t *const api_p, awk_ext_id_t id)  \
{ \
	size_t i, j; \
	int errors = 0; \
\
	api = api_p; \
	ext_id = id; \
\
	if (api->major_version != GAWK_API_MAJOR_VERSION \
	    || api->minor_version < GAWK_API_MINOR_VERSION) { \
		fprintf(stderr, #extension ": version mismatch with gawk!\n"); \
		fprintf(stderr, "\tmy version (%d, %d), gawk version (%d, %d)\n", \
			GAWK_API_MAJOR_VERSION, GAWK_API_MINOR_VERSION, \
			api->major_version, api->minor_version); \
		exit(1); \
	} \
\
	/* load functions */ \
	for (i = 0, j = sizeof(func_table) / sizeof(func_table[0]); i < j; i++) { \
		if (func_table[i].name == NULL) \
			break; \
		if (! add_ext_func(name_space, & func_table[i])) { \
			warning(ext_id, #extension ": could not add %s\n", \
					func_table[i].name); \
			errors++; \
		} \
	} \
\
	if (init_func != NULL) { \
		if (! init_func()) { \
			warning(ext_id, #extension ": initialization function failed\n"); \
			errors++; \
		} \
	} \
\
	if (ext_version != NULL) \
		register_ext_version(ext_version); \
\
	return (errors == 0); \
}

#endif /* GAWK */

#ifdef __cplusplus
}
#endif	/* C++ */

#endif /* _GAWK_API_H */

Anon7 - 2022
SCDN GOK