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express.cpp
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/*
** Astrolog (Version 7.20) File: express.cpp
**
** IMPORTANT NOTICE: Astrolog and all chart display routines and anything
** not enumerated below used in this program are Copyright (C) 1991-2021 by
** Walter D. Pullen (Astara@msn.com, http://www.astrolog.org/astrolog.htm).
** Permission is granted to freely use, modify, and distribute these
** routines provided these credits and notices remain unmodified with any
** altered or distributed versions of the program.
**
** The main ephemeris databases and calculation routines are from the
** library SWISS EPHEMERIS and are programmed and copyright 1997-2008 by
** Astrodienst AG. The use of that source code is subject to the license for
** Swiss Ephemeris Free Edition, available at http://www.astro.com/swisseph.
** This copyright notice must not be changed or removed by any user of this
** program.
**
** Additional ephemeris databases and formulas are from the calculation
** routines in the program PLACALC and are programmed and Copyright (C)
** 1989,1991,1993 by Astrodienst AG and Alois Treindl (alois@astro.ch). The
** use of that source code is subject to regulations made by Astrodienst
** Zurich, and the code is not in the public domain. This copyright notice
** must not be changed or removed by any user of this program.
**
** The original planetary calculation routines used in this program have
** been copyrighted and the initial core of this program was mostly a
** conversion to C of the routines created by James Neely as listed in
** 'Manual of Computer Programming for Astrologers', by Michael Erlewine,
** available from Matrix Software.
**
** Atlas composed using data from https://www.geonames.org/ licensed under a
** Creative Commons Attribution 4.0 License. Time zone changes composed using
** public domain TZ database: https://data.iana.org/time-zones/tz-link.html
**
** The PostScript code within the core graphics routines are programmed
** and Copyright (C) 1992-1993 by Brian D. Willoughby (brianw@sounds.wa.com).
**
** More formally: This program 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 2 of the
** License, or (at your option) any later version. This program is
** distributed in the hope that it will be useful and inspiring, 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, a copy of which is in the
** LICENSE.HTM file included with Astrolog, and at http://www.gnu.org
**
** Initial programming 8/28-30/1991.
** X Window graphics initially programmed 10/23-29/1991.
** PostScript graphics initially programmed 11/29-30/1992.
** Last code change made 4/11/2021.
*/
#include "astrolog.h"
#ifdef EXPRESS
/*
******************************************************************************
** Action Tables
******************************************************************************
*/
#define cfunA 263
#ifdef GRAPH
#define cfunX 33
#else
#define cfunX 0
#endif
#define cfun (cfunA + cfunX)
#define P2(n1, n2) (((n2) << 2) | (n1))
#define P3(n1, n2, n3) (((n3) << 4) | P2(n1, n2))
#define P4(n1, n2, n3, n4) (((n4) << 6) | P3(n1, n2, n3))
#define P5(n1, n2, n3, n4, n5) (((n5) << 8) | P4(n1, n2, n3, n4))
#define X_ 0
#define I_ 1
#define R_ 2
#define E_ 3
#define I_I P2(I_, I_)
#define I_II P3(I_, I_, I_)
#define I_IX P3(I_, I_, X_)
#define I_III P4(I_, I_, I_, I_)
#define I_IXX P4(I_, I_, X_, X_)
#define I_IIIX P5(I_, I_, I_, I_, X_)
#define I_R P2(I_, R_)
#define I_E P2(I_, E_)
#define I_EE P3(I_, E_, E_)
#define I_EEE P4(I_, E_, E_, E_)
#define R_I P2(R_, I_)
#define R_R P2(R_, R_)
#define R_RR P3(R_, R_, R_)
#define R_RRRR P5(R_, R_, R_, R_, R_)
#define E_I P2(E_, I_)
#define E_IE P3(E_, I_, E_)
#define E_IX P3(E_, I_, X_)
#define E_IEE P4(E_, I_, E_, E_)
#define E_IXX P4(E_, I_, X_, X_)
#define E_E P2(E_, E_)
#define E_EE P3(E_, E_, E_)
#define E_XE P3(E_, X_, E_)
#define E_XXE P4(E_, X_, X_, E_)
#define E_XXXE P5(E_, X_, X_, X_, E_)
#define EIR(I, R) if (!fRetReal) {n = (I);} else {r = (R);}
#define IIR(I, R) n = !fOptReal ? (I) : (R)
#define SetReal(I, R) if (FBetween(I, 0, cLetter)) \
{ rgparVar[I].r = (R); rgparVar[I].fReal = fTrue; }
typedef struct _function {
int ifun; // Index of function
char *szName; // Name of function
int nParam; // Number of parameters function takes
int nType; // Types of return value and each parameter
} FUN;
typedef struct _parameter {
int n; // Integer value (if !fReal)
real r; // Real value (if fReal)
flag fReal; // Whether parameter is real or integer
} PAR;
PAR rgparVar[cLetter+1]; // List of variables
char *rgszExpMacro[cLetter+1]; // List of macros
extern CONST char *PchGetParameter P((CONST char *, PAR *, int, flag));
extern void GetParameter P((CONST char *, PAR *));
// Functions
enum _functionindex {
// General functions (independent of Astrolog and astrology)
funFalse = 0,
funTrue,
funInt,
funReal,
funType,
funAdd,
funSub,
funMul,
funDiv,
funMod,
funPow,
funNeg,
funInc,
funDec,
funEqu,
funNeq,
funLt,
funGt,
funLte,
funGte,
funNot,
funAnd,
funOr,
funXor,
funInv,
funShftL,
funShftR,
funOdd,
funAbs,
funSgn,
funSgn2,
funMin,
funMax,
funTween,
funIfOp,
funSqu,
funSqr,
funDist,
funLn,
funLog10,
funSin,
funCos,
funTan,
funAsin,
funAcos,
funAtan,
funAng,
funSinD,
funCosD,
funTanD,
funAsinD,
funAcosD,
funAtanD,
funAngD,
funFloor,
funFract,
funRnd,
// Specific functions (related to Astrolog and astrology)
funSigns,
funObjs,
funAsps,
funMon, funDay, funYea, funTim, funDst, funZon, funLon, funLat,
funMon1, funDay1, funYea1, funTim1, funDst1, funZon1, funLon1, funLat1,
funMon2, funDay2, funYea2, funTim2, funDst2, funZon2, funLon2, funLat2,
funMon3, funDay3, funYea3, funTim3, funDst3, funZon3, funLon3, funLat3,
funMon4, funDay4, funYea4, funTim4, funDst4, funZon4, funLon4, funLat4,
funMonT, funDayT, funYeaT, funTimT,
funObjLon, funObjLat, funObjDir, funObjDirY, funObjHou,
funObjLon1, funObjLat1, funObjDir1, funObjDirY1, funObjHou1,
funObjLon2, funObjLat2, funObjDir2, funObjDirY2, funObjHou2,
funObjLon3, funObjLat3, funObjDir3, funObjDirY3, funObjHou3,
funObjLon4, funObjLat4, funObjDir4, funObjDirY4, funObjHou4,
funObjX,
funObjY,
funObjZ,
funObjOn,
funObjOnT,
funObjOrb,
funObjAdd,
funObjInf,
funObjInfT,
funObjCol,
funObjDist,
funObjYear,
funObjDiam,
funObjDay,
funAspAng,
funAspOrb,
funAspInf,
funAspCol,
funCusp, funCusp3D,
funCusp1, funCusp3D1,
funCusp2, funCusp3D2,
funCusp3, funCusp3D3,
funCusp4, funCusp3D4,
funCuspInf,
funLonSign,
funLonDeg,
funLonHou,
funLonHou3,
funLonDist,
funLonDiff,
funLonMid,
funDayWeek,
funJulianT,
funSphDist,
funOblique,
funRAMC,
funDeltaT,
funSidDiff,
funSystem,
funAspect,
funAspect2,
funParall,
funParall2,
funGridNam,
funGridVal,
funGridDo,
funGridDo2,
funContext,
funVersion,
// Astrolog command switch settings (general)
fun_A3,
fun_Ap,
fun_AP,
fun_b,
fun_b0,
fun_c,
fun_c3,
fun_s,
fun_s0,
fun_sr,
fun_sr0,
fun_h,
fun_p,
fun_p0,
fun_pd,
fun_pC,
fun_x,
fun_1,
fun_3,
fun_4,
fun_f,
fun_G,
fun_J,
fun_9,
fun_YT,
fun_YV,
fun_Yh,
fun_Ym,
fun_Ys,
fun_Yn,
fun_Yn0,
fun_Yz0,
fun_Yu,
fun_Yu0,
fun_Yr,
fun_YC,
fun_YO,
fun_Yc,
fun_Yp,
#ifdef GRAPH
// Astrolog command switch settings (graphics)
fun_XI1,
fun_XI2,
fun_Xr,
fun_Xm,
fun_XT,
fun_Xi,
fun_Xu,
fun_Xl,
fun_XA,
fun_XL,
fun_Xj,
fun_XF,
fun_XW0,
fun_Xe,
fun_XU,
fun_XC,
fun_XQ,
fun_XN,
fun_YXe,
fun_Xwx,
fun_Xwy,
fun_Xn,
fun_Xs,
fun_XS,
fun_XU0,
fun_XE1,
fun_XE2,
fun_XE,
fun_XL0,
fun_X1,
fun_XGx,
fun_XGy,
fun_XZ,
#endif
// Programming functions (related to variables and control flow)
funVar,
funDo,
funDo2,
funDo3,
funIf,
funIfElse,
funDoCount,
funWhile,
funDoWhile,
funFor,
funMacro,
funSwitch,
funRndSeed,
// Variable assignment functions
funAssign, funAssign2,
funAssignA, funAssignB, funAssignC, funAssignD, funAssignE,
funAssignF, funAssignG, funAssignH, funAssignI, funAssignJ,
funAssignK, funAssignL, funAssignM, funAssignN, funAssignO,
funAssignP, funAssignQ, funAssignR, funAssignS, funAssignT,
funAssignU, funAssignV, funAssignW, funAssignX, funAssignY,
funAssignZ = cfun-1,
};
CONST FUN rgfun[cfun] = {
// General functions (independent of Astrolog and astrology)
{funFalse, "False", 0, I_},
{funTrue, "True", 0, I_},
{funInt, "Int", 1, I_I},
{funReal, "Real", 1, R_R},
{funType, "Type", 1, I_E},
{funAdd, "Add", 2, E_EE},
{funSub, "Sub", 2, E_EE},
{funMul, "Mul", 2, E_EE},
{funDiv, "Div", 2, E_EE},
{funMod, "Mod", 2, I_II},
{funPow, "Pow", 2, R_RR},
{funNeg, "Neg", 1, E_E},
{funInc, "Inc", 1, E_E},
{funDec, "Dec", 1, E_E},
{funEqu, "Equ", 2, I_EE},
{funNeq, "Neq", 2, I_EE},
{funLt, "Lt", 2, I_EE},
{funGt, "Gt", 2, I_EE},
{funLte, "Lte", 2, I_EE},
{funGte, "Gte", 2, I_EE},
{funNot, "Not", 1, I_I},
{funAnd, "And", 2, I_II},
{funOr, "Or", 2, I_II},
{funXor, "Xor", 2, I_II},
{funInv, "Inv", 1, I_I},
{funShftL, "<<", 2, I_II},
{funShftR, ">>", 2, I_II},
{funOdd, "Odd", 1, I_I},
{funAbs, "Abs", 1, E_E},
{funSgn, "Sgn", 1, E_E},
{funSgn2, "Sgn2", 1, E_E},
{funMin, "Min", 2, E_EE},
{funMax, "Max", 2, E_EE},
{funTween, "Tween", 3, I_EEE},
{funIfOp, "?:", 3, E_IEE},
{funSqu, "Squ", 1, E_E},
{funSqr, "Sqr", 1, R_R},
{funDist, "Dist", 2, R_RR},
{funLn, "Ln", 1, R_R},
{funLog10, "Log10", 1, R_R},
{funSin, "Sin", 1, R_R},
{funCos, "Cos", 1, R_R},
{funTan, "Tan", 1, R_R},
{funAsin, "Asin", 1, R_R},
{funAcos, "Acos", 1, R_R},
{funAtan, "Atan", 1, R_R},
{funAng, "Ang", 2, R_RR},
{funSinD, "SinD", 1, R_R},
{funCosD, "CosD", 1, R_R},
{funTanD, "TanD", 1, R_R},
{funAsinD, "AsinD", 1, R_R},
{funAcosD, "AcosD", 1, R_R},
{funAtanD, "AtanD", 1, R_R},
{funAngD, "AngD", 2, R_RR},
{funFloor, "Floor", 1, R_R},
{funFract, "Fract", 1, R_R},
{funRnd, "Rnd", 2, I_II},
// Specific functions (related to Astrolog and astrology)
{funSigns, "Signs", 0, I_},
{funObjs, "Objs", 0, I_},
{funAsps, "Asps", 0, I_},
{funMon, "Mon", 0, I_},
{funDay, "Day", 0, I_},
{funYea, "Yea", 0, I_},
{funTim, "Tim", 0, R_},
{funDst, "Dst", 0, R_},
{funZon, "Zon", 0, R_},
{funLon, "Lon", 0, R_},
{funLat, "Lat", 0, R_},
{funMon1, "Mon1", 0, I_},
{funDay1, "Day1", 0, I_},
{funYea1, "Yea1", 0, I_},
{funTim1, "Tim1", 0, R_},
{funDst1, "Dst1", 0, R_},
{funZon1, "Zon1", 0, R_},
{funLon1, "Lon1", 0, R_},
{funLat1, "Lat1", 0, R_},
{funMon2, "Mon2", 0, I_},
{funDay2, "Day2", 0, I_},
{funYea2, "Yea2", 0, I_},
{funTim2, "Tim2", 0, R_},
{funDst2, "Dst2", 0, R_},
{funZon2, "Zon2", 0, R_},
{funLon2, "Lon2", 0, R_},
{funLat2, "Lat2", 0, R_},
{funMon3, "Mon3", 0, I_},
{funDay3, "Day3", 0, I_},
{funYea3, "Yea3", 0, I_},
{funTim3, "Tim3", 0, R_},
{funDst3, "Dst3", 0, R_},
{funZon3, "Zon3", 0, R_},
{funLon3, "Lon3", 0, R_},
{funLat3, "Lat3", 0, R_},
{funMon4, "Mon4", 0, I_},
{funDay4, "Day4", 0, I_},
{funYea4, "Yea4", 0, I_},
{funTim4, "Tim4", 0, R_},
{funDst4, "Dst4", 0, R_},
{funZon4, "Zon4", 0, R_},
{funLon4, "Lon4", 0, R_},
{funLat4, "Lat4", 0, R_},
{funMonT, "MonT", 0, I_},
{funDayT, "DayT", 0, I_},
{funYeaT, "YeaT", 0, I_},
{funTimT, "TimT", 0, R_},
{funObjLon, "ObjLon", 1, R_I},
{funObjLat, "ObjLat", 1, R_I},
{funObjDir, "ObjDir", 1, R_I},
{funObjDirY, "ObjDirY", 1, R_I},
{funObjHou, "ObjHouse", 1, I_I},
{funObjLon1, "ObjLon1", 1, R_I},
{funObjLat1, "ObjLat1", 1, R_I},
{funObjDir1, "ObjDir1", 1, R_I},
{funObjDirY1, "ObjDirY1", 1, R_I},
{funObjHou1, "ObjHouse1", 1, I_I},
{funObjLon2, "ObjLon2", 1, R_I},
{funObjLat2, "ObjLat2", 1, R_I},
{funObjDir2, "ObjDir2", 1, R_I},
{funObjDirY2, "ObjDirY2", 1, R_I},
{funObjHou2, "ObjHouse2", 1, I_I},
{funObjLon3, "ObjLon3", 1, R_I},
{funObjLat3, "ObjLat3", 1, R_I},
{funObjDir3, "ObjDir3", 1, R_I},
{funObjDirY3, "ObjDirY3", 1, R_I},
{funObjHou3, "ObjHouse3", 1, I_I},
{funObjLon4, "ObjLon4", 1, R_I},
{funObjLat4, "ObjLat4", 1, R_I},
{funObjDir4, "ObjDir4", 1, R_I},
{funObjDirY4, "ObjDirY4", 1, R_I},
{funObjHou4, "ObjHouse4", 1, I_I},
{funObjX, "ObjX", 1, R_I},
{funObjY, "ObjY", 1, R_I},
{funObjZ, "ObjZ", 1, R_I},
{funObjOn, "ObjOn", 1, I_I},
{funObjOnT, "ObjOnT", 1, I_I},
{funObjOrb, "ObjOrb", 1, R_I},
{funObjAdd, "ObjAdd", 1, R_I},
{funObjInf, "ObjInf", 1, R_I},
{funObjInfT, "ObjInfT", 1, R_I},
{funObjCol, "ObjCol", 1, I_I},
{funObjDist, "ObjDist", 1, R_I},
{funObjYear, "ObjYear", 1, R_I},
{funObjDiam, "ObjDiam", 1, R_I},
{funObjDay, "ObjDay", 1, R_I},
{funAspAng, "AspAngle", 1, R_I},
{funAspOrb, "AspOrb", 1, R_I},
{funAspInf, "AspInf", 1, R_I},
{funAspCol, "AspCol", 1, I_I},
{funCusp, "Cusp", 1, R_I},
{funCusp3D, "Cusp3D", 1, R_I},
{funCusp1, "Cusp1", 1, R_I},
{funCusp3D1, "Cusp3D1", 1, R_I},
{funCusp2, "Cusp2", 1, R_I},
{funCusp3D2, "Cusp3D2", 1, R_I},
{funCusp3, "Cusp3", 1, R_I},
{funCusp3D3, "Cusp3D3", 1, R_I},
{funCusp4, "Cusp4", 1, R_I},
{funCusp3D4, "Cusp3D4", 1, R_I},
{funCuspInf, "HouseInf", 1, R_I},
{funLonSign, "LonSign", 1, I_R},
{funLonDeg, "LonDeg", 1, R_R},
{funLonHou, "LonHouse", 1, I_R},
{funLonHou3, "LonHou3D", 2, R_RR},
{funLonDist, "LonDist", 2, R_RR},
{funLonDiff, "LonDiff", 2, R_RR},
{funLonMid, "LonMid", 2, R_RR},
{funDayWeek, "DayWeek", 3, I_III},
{funJulianT, "JulianT", 0, R_},
{funSphDist, "PolDist", 4, R_RRRR},
{funOblique, "Oblique", 0, R_},
{funRAMC, "RAMC", 0, R_},
{funDeltaT, "DeltaT", 0, R_},
{funSidDiff, "SidDiff", 0, R_},
{funSystem, "HouseSys", 0, I_}, // Same as _c
{funAspect, "AspLon", 3, I_III},
{funAspect2, "AspLon2", 3, I_III},
{funParall, "AspLat", 3, I_III},
{funParall2, "AspLat2", 3, I_III},
{funGridNam, "GridNam", 2, I_II},
{funGridVal, "GridVal", 2, I_II},
{funGridDo, "DoGrid", 0, I_},
{funGridDo2, "DoGrid2", 1, I_I},
{funContext, "Context", 0, I_},
{funVersion, "Version", 0, R_},
// Astrolog command switch settings (general)
{fun_A3, "_A3", 0, I_},
{fun_Ap, "_Ap", 0, I_},
{fun_AP, "_APP", 0, I_},
{fun_b, "_b", 0, I_},
{fun_b0, "_b0", 0, I_},
{fun_c, "_c", 0, I_},
{fun_c3, "_c3", 0, I_},
{fun_s, "_s", 0, I_},
{fun_s0, "_s0", 0, R_},
{fun_sr, "_sr", 0, I_},
{fun_sr0, "_sr0", 0, I_},
{fun_h, "_h", 0, I_},
{fun_p, "_p", 0, I_},
{fun_p0, "_p0", 0, I_},
{fun_pd, "_pd", 0, R_},
{fun_pC, "_pC", 0, R_},
{fun_x, "_x", 0, R_},
{fun_1, "_1", 0, I_},
{fun_3, "_3", 0, I_},
{fun_4, "_4", 0, I_},
{fun_f, "_f", 0, I_},
{fun_G, "_G", 0, I_},
{fun_J, "_J", 0, I_},
{fun_9, "_9", 0, I_},
{fun_YT, "_YT", 0, I_},
{fun_YV, "_YV", 0, I_},
{fun_Yh, "_Yh", 0, I_},
{fun_Ym, "_Ym", 0, I_},
{fun_Ys, "_Ys", 0, I_},
{fun_Yn, "_Yn", 0, I_},
{fun_Yn0, "_Yn0", 0, I_},
{fun_Yz0, "_Yz0", 0, R_},
{fun_Yu, "_Yu", 0, I_},
{fun_Yu0, "_Yu0", 0, I_},
{fun_Yr, "_Yr", 0, I_},
{fun_YC, "_YC", 0, I_},
{fun_YO, "_YO", 0, I_},
{fun_Yc, "_Ycc", 0, I_},
{fun_Yp, "_Yp", 0, I_},
#ifdef GRAPH
// Astrolog command switch settings (graphics)
{fun_XI1, "_XI1", 0, R_},
{fun_XI2, "_XI2", 0, I_},
{fun_Xr, "_Xr", 0, I_},
{fun_Xm, "_Xm", 0, I_},
{fun_XT, "_XT", 0, I_},
{fun_Xi, "_Xi", 0, I_},
{fun_Xu, "_Xuu", 0, I_},
{fun_Xl, "_Xll", 0, I_},
{fun_XA, "_XA", 0, I_},
{fun_XL, "_XL", 0, I_},
{fun_Xj, "_Xj", 0, I_},
{fun_XF, "_XF", 0, I_},
{fun_XW0, "_XW0", 0, I_},
{fun_Xe, "_Xee", 0, I_},
{fun_XU, "_XU", 0, I_},
{fun_XC, "_XC", 0, I_},
{fun_XQ, "_XQ", 0, I_},
{fun_XN, "_XN", 0, I_},
{fun_YXe, "_YXe", 0, I_},
{fun_Xwx, "_Xwx", 0, I_},
{fun_Xwy, "_Xwy", 0, I_},
{fun_Xn, "_Xnn", 0, I_},
{fun_Xs, "_Xs", 0, I_},
{fun_XS, "_XSS", 0, I_},
{fun_XU0, "_XU0", 0, I_},
{fun_XE1, "_XE1", 0, I_},
{fun_XE2, "_XE2", 0, I_},
{fun_XE, "_XE", 0, I_},
{fun_XL0, "_XL0", 0, I_},
{fun_X1, "_X1", 0, I_},
{fun_XGx, "_XGx", 0, R_},
{fun_XGy, "_XGy", 0, R_},
{fun_XZ, "_XZ", 0, I_},
#endif
// Programming functions (related to variables and control flow)
{funVar, "Var", 1, E_I},
{funDo, "Do", 2, E_XE},
{funDo2, "Do2", 3, E_XXE},
{funDo3, "Do3", 4, E_XXXE},
{funIf, "If", 2, E_IX},
{funIfElse, "IfElse", 3, E_IXX},
{funDoCount, "DoCount", 2, E_IX},
{funWhile, "While", 2, E_XE},
{funDoWhile, "DoWhile", 2, E_XE},
{funFor, "For", 4, I_IIIX},
{funMacro, "Macro", 1, E_I},
{funSwitch, "Switch", 1, I_I},
{funRndSeed, "RndSeed", 1, I_I},
// Variable assignment functions
{funAssign, "Assign", 2, E_IE},
{funAssign2, "=", 2, E_IE},
{funAssignA, "=A", 1, E_E},
{funAssignB, "=B", 1, E_E},
{funAssignC, "=C", 1, E_E},
{funAssignD, "=D", 1, E_E},
{funAssignE, "=E", 1, E_E},
{funAssignF, "=F", 1, E_E},
{funAssignG, "=G", 1, E_E},
{funAssignH, "=H", 1, E_E},
{funAssignI, "=I", 1, E_E},
{funAssignJ, "=J", 1, E_E},
{funAssignK, "=K", 1, E_E},
{funAssignL, "=L", 1, E_E},
{funAssignM, "=M", 1, E_E},
{funAssignN, "=N", 1, E_E},
{funAssignO, "=O", 1, E_E},
{funAssignP, "=P", 1, E_E},
{funAssignQ, "=Q", 1, E_E},
{funAssignR, "=R", 1, E_E},
{funAssignS, "=S", 1, E_E},
{funAssignT, "=T", 1, E_E},
{funAssignU, "=U", 1, E_E},
{funAssignV, "=V", 1, E_E},
{funAssignW, "=W", 1, E_E},
{funAssignX, "=X", 1, E_E},
{funAssignY, "=Y", 1, E_E},
{funAssignZ, "=Z", 1, E_E},
};
/*
******************************************************************************
** Utilities
******************************************************************************
*/
// Copy a range of characters and zero terminate it. If there are too many
// characters to fit in the destination buffer, the string is truncated.
void CopyRgchToSz(CONST char *pch, int cch, char *sz, int cchMax)
{
cch = Min(cch, cchMax-1);
CopyRgb((byte *)pch, (byte *)sz, cch);
sz[cch] = chNull;
}
// Convert a range of characters to upper case.
void UpperRgch(char *rgch, int cch)
{
while (cch > 0) {
*rgch = ChCap(*rgch);
rgch++, cch--;
}
}
// Parse and return a number contained in a range of characters.
long LFromRgch(CONST char *rgch, int cch)
{
char sz[cchSzDef], *pch;
long l;
flag fBinary;
CopyRgchToSz(rgch, cch, sz, cchSzDef);
if (*sz != '#')
return atol(sz);
fBinary = (*(sz+1) == '#');
// Strings starting with "#" are considered hexadecimal numbers.
// Strings starting with "##" are considered binary numbers.
l = 0;
for (pch = sz+1+fBinary; *pch; pch++)
l = fBinary ? ((l << 1) | (*pch == '1')) :
((l << 4) | NHex2(ChCap(*pch)));
return l;
}
/*
******************************************************************************
** Action Processing
******************************************************************************
*/
// Evaluate a function, generating the number it evaluates to, given a list of
// parameters to the function.
flag FEvalFunction(int ifun, PAR *rgpar, char *rgpchEval[2])
{
int ipar, nType, n = 0, n1, n2, n3, n4;
real r = 0.0, r1, r2, r3, r4;
char sz[cchSzMax];
flag fRetOpt = fFalse, fRetReal = fFalse, fOpt = fFalse, fOptReal = fFalse;
// Analyze the input and output parameter types.
for (ipar = 0; ipar <= rgfun[ifun].nParam; ipar++) {
nType = (rgfun[ifun].nType >> (ipar << 1)) & 3;
if (ipar == 0) {
if (nType == R_)
fRetReal = fTrue;
else if (nType == E_)
fRetOpt = fTrue;
continue;
}
if (nType == I_) {
if (rgpar[ipar].fReal)
rgpar[ipar].n = (int)rgpar[ipar].r;
} else if (nType == R_) {
if (!rgpar[ipar].fReal)
rgpar[ipar].r = (real)rgpar[ipar].n;
} else if (nType == E_) {
fOpt = fTrue;
if (rgpar[ipar].fReal)
fOptReal = fTrue;
}
}
// Convert optional type parameters to real if any are real.
if (fOpt && fOptReal)
for (ipar = 1; ipar <= rgfun[ifun].nParam; ipar++) {
nType = (rgfun[ifun].nType >> (ipar << 1)) & 3;
if (nType == E_ && !rgpar[ipar].fReal) {
rgpar[ipar].r = (real)rgpar[ipar].n;
rgpar[ipar].fReal = fTrue;
}
}
if (fRetOpt && fOptReal)
fRetReal = fTrue;
n1 = rgpar[1].n; n2 = rgpar[2].n; n3 = rgpar[3].n; n4 = rgpar[4].n;
r1 = rgpar[1].r; r2 = rgpar[2].r; r3 = rgpar[3].r; r4 = rgpar[4].r;
switch (ifun) {
// General functions (independent of Astrolog and astrology)
case funFalse: n = fFalse; break;
case funTrue: n = fTrue; break;
case funInt: n = n1; break;
case funReal: r = r1; break;
case funType: n = fOptReal; break;
case funAdd: EIR(n1 + n2, r1 + r2); break;
case funSub: EIR(n1 - n2, r1 - r2); break;
case funMul: EIR(n1 * n2, r1 * r2); break;
case funDiv: EIR(n2 != 0 ? n1 / n2 : n1, r2 != 0.0 ? r1 / r2 : r1); break;
case funMod: n = n2 != 0 ? n1 % n2 : n1; break;
case funPow: r = pow(r1, r2); break;
case funNeg: EIR(-n1, -r1); break;
case funInc: EIR(n1 + 1, r1 + 1.0); break;
case funDec: EIR(n1 - 1, r1 - 1.0); break;
case funEqu: IIR(n1 == n2, r1 == r2); break;
case funNeq: IIR(n1 != n2, r1 != r2); break;
case funLt: IIR(n1 < n2, r1 < r2); break;
case funGt: IIR(n1 > n2, r1 > r2); break;
case funLte: IIR(n1 <= n2, r1 <= r2); break;
case funGte: IIR(n1 >= n2, r1 >= r2); break;
case funNot: n = !n1; break;
case funAnd: n = n1 & n2; break;
case funOr: n = n1 | n2; break;
case funXor: n = n1 ^ n2; break;
case funInv: n = ~n1; break;
case funShftL: n = n1 << n2; break;
case funShftR: n = n1 >> n2; break;
case funOdd: n = FOdd(n1); break;
case funAbs: EIR(NAbs(n1), RAbs(r1)); break;
case funSgn: EIR(NSgn(n1), RSgn(r1)); break;
case funSgn2: EIR(NSgn2(n1), RSgn2(r1)); break;
case funMin: EIR(Min(n1, n2), Min(r1, r2)); break;
case funMax: EIR(Max(n1, n2), Max(r1, r2)); break;
case funTween: IIR(FBetween(n1, n2, n3), FBetween(r1, r2, r3)); break;
case funIfOp: EIR(n1 ? n2 : n3, n1 ? r2 : r3); break;
case funSqu: EIR(Sq(n1), Sq(r1)); break;
case funSqr: r = RSqr(r1); break;
case funDist: r = RSqr(Sq(r1)+Sq(r2)); break;
case funLn: r = RLog(r1); break;
case funLog10: r = RLog10(r1); break;
case funSin: r = RSin(r1); break;
case funCos: r = RCos(r1); break;
case funTan: r = RTan(r1); break;
case funAsin: r = RAsin(r1); break;
case funAcos: r = RAcos(r1); break;
case funAtan: r = RAtn(r1); break;
case funAng: r = RAngle(r1, r2); break;
case funSinD: r = RSinD(r1); break;
case funCosD: r = RCosD(r1); break;
case funTanD: r = RTanD(r1); break;
case funAsinD: r = RAsinD(r1); break;
case funAcosD: r = RAcosD(r1); break;
case funAtanD: r = RAtnD(r1); break;
case funAngD: r = RAngleD(r1, r2); break;
case funFloor: r = RFloor(r1); break;
case funFract: r = r1 - RFloor(r1); break;
case funRnd: n = (rand() & 16383) * (n2 - n1 + 1) / 16384 + n1; break;
// Specific functions (related to Astrolog and astrology)
case funSigns: n = cSign; break;
case funObjs: n = is.nObj; break;
case funAsps: n = us.nAsp; break;
case funMon: n = MM; break;
case funDay: n = DD; break;
case funYea: n = YY; break;
case funTim: r = TT; break;
case funDst: r = SS; break;
case funZon: r = ZZ; break;
case funLon: r = OO; break;
case funLat: r = AA; break;
case funMon1: n = ciMain.mon; break;
case funDay1: n = ciMain.day; break;
case funYea1: n = ciMain.yea; break;
case funTim1: r = ciMain.tim; break;
case funDst1: r = ciMain.dst; break;
case funZon1: r = ciMain.zon; break;
case funLon1: r = ciMain.lon; break;
case funLat1: r = ciMain.lat; break;
case funMon2: n = ciTwin.mon; break;
case funDay2: n = ciTwin.day; break;
case funYea2: n = ciTwin.yea; break;
case funTim2: r = ciTwin.tim; break;
case funDst2: r = ciTwin.dst; break;
case funZon2: r = ciTwin.zon; break;
case funLon2: r = ciTwin.lon; break;
case funLat2: r = ciTwin.lat; break;
case funMon3: n = ciThre.mon; break;
case funDay3: n = ciThre.day; break;
case funYea3: n = ciThre.yea; break;
case funTim3: r = ciThre.tim; break;
case funDst3: r = ciThre.dst; break;
case funZon3: r = ciThre.zon; break;
case funLon3: r = ciThre.lon; break;
case funLat3: r = ciThre.lat; break;
case funMon4: n = ciFour.mon; break;
case funDay4: n = ciFour.day; break;
case funYea4: n = ciFour.yea; break;
case funTim4: r = ciFour.tim; break;
case funDst4: r = ciFour.dst; break;
case funZon4: r = ciFour.zon; break;
case funLon4: r = ciFour.lon; break;
case funLat4: r = ciFour.lat; break;
case funMonT: n = ciTran.mon; break;
case funDayT: n = ciTran.day; break;
case funYeaT: n = ciTran.yea; break;
case funTimT: r = ciTran.tim; break;
case funObjLon: r = FValidObj(n1) ? planet[n1] : 0.0; break;
case funObjLat: r = FValidObj(n1) ? planetalt[n1] : 0.0; break;
case funObjDir: r = FValidObj(n1) ? ret[n1] : 0.0; break;
case funObjDirY: r = FValidObj(n1) ? retalt[n1] : 0.0; break;
case funObjHou: n = FValidObj(n1) ? inhouse[n1] : 0; break;
case funObjLon1: r = FValidObj(n1) ? cp1.obj[n1] : 0.0; break;
case funObjLat1: r = FValidObj(n1) ? cp1.alt[n1] : 0.0; break;
case funObjDir1: r = FValidObj(n1) ? cp1.dir[n1] : 0.0; break;
case funObjDirY1: r = FValidObj(n1) ? cp1.diralt[n1] : 0.0; break;
case funObjHou1: n = FValidObj(n1) ? cp1.house[n1] : 0; break;
case funObjLon2: r = FValidObj(n1) ? cp2.obj[n1] : 0.0; break;
case funObjLat2: r = FValidObj(n1) ? cp2.alt[n1] : 0.0; break;
case funObjDir2: r = FValidObj(n1) ? cp2.dir[n1] : 0.0; break;
case funObjDirY2: r = FValidObj(n1) ? cp2.diralt[n1] : 0.0; break;
case funObjHou2: n = FValidObj(n1) ? cp2.house[n1] : 0; break;
case funObjLon3: r = FValidObj(n1) ? cp3.obj[n1] : 0.0; break;
case funObjLat3: r = FValidObj(n1) ? cp3.alt[n1] : 0.0; break;
case funObjDir3: r = FValidObj(n1) ? cp3.dir[n1] : 0.0; break;
case funObjDirY3: r = FValidObj(n1) ? cp3.diralt[n1] : 0.0; break;
case funObjHou3: n = FValidObj(n1) ? cp3.house[n1] : 0; break;
case funObjLon4: r = FValidObj(n1) ? cp4.obj[n1] : 0.0; break;
case funObjLat4: r = FValidObj(n1) ? cp4.alt[n1] : 0.0; break;
case funObjDir4: r = FValidObj(n1) ? cp4.dir[n1] : 0.0; break;
case funObjDirY4: r = FValidObj(n1) ? cp4.diralt[n1] : 0.0; break;
case funObjHou4: n = FValidObj(n1) ? cp4.house[n1] : 0; break;
case funObjX: r = FValidObj(n1) ? space[n1].x : 0.0; break;
case funObjY: r = FValidObj(n1) ? space[n1].y : 0.0; break;
case funObjZ: r = FValidObj(n1) ? space[n1].z : 0.0; break;
case funObjOn: n = FValidObj(n1) ? !ignore[n1] : 0; break;
case funObjOnT: n = FValidObj(n1) ? !ignore2[n1] : 0; break;
case funObjOrb: r = FValidObj(n1) ? rObjOrb[n1] : 0.0; break;
case funObjAdd: r = FValidObj(n1) ? rObjAdd[n1] : 0.0; break;
case funObjInf: r = FBetween(n1, 0, oNorm1+5) ? rObjInf[n1] : 0.0; break;
case funObjInfT: r = FBetween(n1, 0, oNorm1) ? rTransitInf[n1] : 0.0; break;
case funObjCol: n = FValidObj(n1) ? kObjA[n1] : 0; break;
case funObjDist: r = FNorm(n1) ? rObjDist[n1] : 0.0; break;
case funObjYear: r = FNorm(n1) ? rObjYear[n1] : 0.0; break;
case funObjDiam: r = RObjDiam(n1); break;
case funObjDay: r = FNorm(n1) ? rObjDay[n1] : 0.0; break;
case funAspAng: r = FValidAspect(n1) ? rAspAngle[n1] : 0.0; break;
case funAspOrb: r = FValidAspect(n1) ? rAspOrb[n1] : 0.0; break;
case funAspInf: r = FValidAspect(n1) ? rAspInf[n1] : 0.0; break;
case funAspCol: n = FValidAspect(n1) ? kAspA[n1] : 0; break;
case funCusp: r = FValidSign(n1) ? chouse[n1] : 0.0; break;
case funCusp3D: r = FValidSign(n1) ? chouse3[n1] : 0.0; break;
case funCusp1: r = FValidSign(n1) ? cp1.cusp[n1] : 0.0; break;
case funCusp3D1: r = FValidSign(n1) ? cp1.cusp3[n1] : 0.0; break;
case funCusp2: r = FValidSign(n1) ? cp2.cusp[n1] : 0.0; break;
case funCusp3D2: r = FValidSign(n1) ? cp2.cusp3[n1] : 0.0; break;
case funCusp3: r = FValidSign(n1) ? cp3.cusp[n1] : 0.0; break;
case funCusp3D3: r = FValidSign(n1) ? cp3.cusp3[n1] : 0.0; break;
case funCusp4: r = FValidSign(n1) ? cp4.cusp[n1] : 0.0; break;
case funCusp3D4: r = FValidSign(n1) ? cp4.cusp3[n1] : 0.0; break;
case funCuspInf: r = FBetween(n1, 1, cSign+5) ? rHouseInf[n1] : 0.0; break;
case funLonSign: n = SFromZ(r1); break;
case funLonDeg: r = r1 - (real)((SFromZ(r1)-1)*30); break;
case funLonHou: n = NHousePlaceIn2D(r1); break;
case funLonHou3: r = RHousePlaceIn3D(r1, r2); break;
case funLonDist: r = MinDistance(r1, r2); break;
case funLonDiff: r = MinDifference(r1, r2); break;
case funLonMid: r = Midpoint(r1, r2); break;
case funDayWeek: n = DayOfWeek(n1, n2, n3); break;
case funJulianT: r = JulianDayFromTime(is.T); break;
case funSphDist: r = SphDistance(r1, r2, r3, r4); break;
case funOblique: r = is.OB; break;
case funRAMC: r = is.RA; break;
case funDeltaT: r = is.rDeltaT * 86400.0; break;
case funSidDiff: r = is.rOff; break;
case funSystem: n = us.nHouseSystem; break;
case funAspect: n = GetAspect(planet, planet, planetalt, planetalt, ret,
ret, n1, n2, &r); SetReal(n3, r); break;
case funAspect2: n = GetAspect(cp1.obj, cp2.obj, cp1.alt, cp2.alt, cp1.dir,
cp2.dir, n1, n2, &r); SetReal(n3, r); break;
case funParall: n = GetParallel(planet, planet, planetalt, planetalt,
retalt, retalt, n1, n2, &r); SetReal(n3, r); break;
case funParall2: n = GetParallel(cp1.obj, cp2.obj, cp1.alt, cp2.alt,
cp1.diralt, cp2.diralt, n1, n2, &r); SetReal(n3, r); break;
case funGridNam: n = grid != NULL && FValidObj(n1) && FValidObj(n2) ?
grid->n[n1][n2] : 0; break;
case funGridVal: n = grid != NULL && FValidObj(n1) && FValidObj(n2) ?
grid->v[n1][n2] : 0; break;
case funGridDo: n = FCreateGrid(fFalse); break;
case funGridDo2: n = FCreateGridRelation(n1 != 0); break;
case funContext: n = is.nContext; break;
case funVersion: r = atof(szVersionCore); break;
// Astrolog command switch settings (general)
case fun_A3: n = us.fAspect3D; break;
case fun_Ap: n = us.fAspectLat; break;
case fun_AP: n = us.fParallel2; break;
case fun_b: n = us.fEphemeris; break;
case fun_b0: n = us.fSeconds; break;
case fun_c: n = us.nHouseSystem; break;
case fun_c3: n = us.fHouse3D; break;
case fun_s: n = us.fSidereal; break;
case fun_s0: r = us.rZodiacOffset; break;
case fun_sr: n = us.fEquator; break;
case fun_sr0: n = us.fEquator2; break;
case fun_h: n = us.objCenter; break;
case fun_p: n = us.fProgress; break;
case fun_p0: n = us.nProgress; break;
case fun_pd: r = us.rProgDay; break;
case fun_pC: r = us.rProgCusp; break;
case fun_x: r = us.rHarmonic; break;
case fun_1: n = us.objOnAsc; break;
case fun_3: n = us.fDecan; break;
case fun_4: n = us.nDwad; break;
case fun_f: n = us.fFlip; break;
case fun_G: n = us.fGeodetic; break;
case fun_J: n = us.fVedic; break;
case fun_9: n = us.fNavamsa; break;
case fun_YT: n = us.fTruePos; break;
case fun_YV: n = us.fTopoPos; break;
case fun_Yh: n = us.fBarycenter; break;
case fun_Ym: n = us.fMoonMove; break;