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io.cpp
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/*
** Astrolog (Version 7.60) File: io.cpp
**
** IMPORTANT NOTICE: Astrolog and all chart display routines and anything
** not enumerated below used in this program are Copyright (C) 1991-2023 by
** Walter D. Pullen ([email protected], 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 ([email protected]). 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 ([email protected]).
**
** 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 4/8/2023.
*/
#include "astrolog.h"
#ifdef PC
#include <io.h>
#else
#include <dirent.h>
#endif
/*
******************************************************************************
** File IO Routines.
******************************************************************************
*/
// Open the file indicated by the given string and return the file's stream
// pointer, or NULL if the file couldn't be found or opened. All parts of the
// program which open files to read call this routine. We look in several
// various locations and directories for the file before giving up.
FILE *FileOpen(CONST char *szFile, int nFileMode, char *szPath)
{
FILE *file;
char szFileT[cchSzMax], szExe[cchSzMax], sz[cchSzMax], szMode[3], *pch;
#ifdef ENVIRON
char *env;
#endif
int i, j;
// Some file types we want to open as binary instead of Ascii.
sprintf(szMode, "r%s", nFileMode >= 2 ? "b" : "");
#ifdef WIN
GetModuleFileName(wi.hinst, szExe, cchSzMax);
#else
sprintf(szExe, "%s", is.szProgName != NULL ? is.szProgName : "");
#endif
for (pch = szExe; *pch; pch++)
;
while (pch > szExe && *pch != chDirSep)
pch--;
if (*pch == chDirSep)
pch++;
*pch = chNull;
for (i = 0; i <= 1; i++) {
if (i <= 0)
sprintf(szFileT, "%s", szFile);
else {
if (nFileMode > 1)
break;
sprintf(szFileT, "%s.as", szFile);
}
#ifdef ENVIRON
if(szFile == DEFAULT_INFOFILE || szFile == DEFAULT_ATLASFILE
|| szFile == DEFAULT_TIMECHANGE || BITMAP_EARTH) {
// First look for the file in the directory indicated by the version
// specific system environment variable with _CONFIG postfix.
sprintf(sz, "%s%s_CONFIG", ENVIRONVER, szVerCore);
env = getenv(sz);
if (env && *env) {
sprintf(sz, "%s%c%s", env, chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
// Then look in the directory in the general environment variable
// with _CONFIG postfix.
sprintf(sz, "%s_CONFIG", ENVIRONALL);
env = getenv(sz);
if (env && *env) {
sprintf(sz, "%s%c%s", env, chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
}
#endif
// First look for the file in the directory of the Astrolog executable.
sprintf(sz, "%s", szExe);
for (pch = sz; *pch; pch++)
;
sprintf(pch, "%s", szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
// Next look for the file in the current directory.
sprintf(sz, "%s", szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
// Next look in the directories indicated by the -Yi switch.
for (j = 0; j < 10; j++) {
pch = us.rgszPath[j];
if (FSzSet(pch)) {
if ((FCapCh(*pch) || FUncapCh(*pch) || FNumCh(*pch)) &&
!(pch[1] == ':')) {
// If dir is relative path, then prepend the path to executable.
sprintf(sz, "%s", szExe);
for (pch = sz; *pch; pch++)
;
} else
pch = sz;
sprintf(pch, "%s%c%s", us.rgszPath[j], chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
}
#ifdef ENVIRON
// Next look for the file in the directory indicated by the version
// specific system environment variable.
sprintf(sz, "%s%s", ENVIRONVER, szVerCore);
env = getenv(sz);
if (env && *env) {
sprintf(sz, "%s%c%s", env, chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
// Next look in the directory in the general environment variable.
env = getenv(ENVIRONALL);
if (env && *env) {
sprintf(sz, "%s%c%s", env, chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
// Next look in directory in the version prefix environment variable.
env = getenv(ENVIRONVER);
if (env && *env) {
sprintf(sz, "%s%c%s", env, chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
#endif
// Finally look in one of several compile time specified directories.
sprintf(sz, "%s%c%s", nFileMode == 0 ? DEFAULT_DIR :
(nFileMode == 1 ? CHART_DIR : EPHE_DIR), chDirSep, szFileT);
file = fopen(sz, szMode);
if (file != NULL)
goto LDone;
}
if (file == NULL && FOdd(nFileMode)) {
// If file was never found, print an error (unless we were looking for a
// certain file type, e.g. the optional astrolog.as file).
sprintf(sz, "File '%s' not found.", szFile);
PrintError(sz);
}
LDone:
if (file != NULL && szPath != NULL) {
sprintf(szPath, "%s", sz);
fclose(file);
}
return file;
}
// Read an 8 bit byte from a file.
byte BRead(FILE *file)
{
return getc(file);
}
// Read a 16 bit word from a file.
word WRead(FILE *file)
{
byte b1, b2;
b1 = getbyte(); b2 = getbyte();
return WFromBB(b1, b2);
}
// Read a 32 bit long from a file.
dword LRead(FILE *file)
{
byte b1, b2, b3, b4;
b1 = getbyte(); b2 = getbyte(); b3 = getbyte(); b4 = getbyte();
return LFromWW(WFromBB(b1, b2), WFromBB(b3, b4));
}
// This is Astrolog's generic file processing routine, which handles chart
// info files, position files, and config files. Given a file name or a file
// handle, run through each line as a series of command switches.
flag FProcessSwitchFile(CONST char *szFile, FILE *file)
{
char szLine[cchSzLine], *argv[MAXSWITCHES], ch;
int argc, i;
flag fHaveFile, fRet = fFalse;
fHaveFile = (file != NULL);
if (!fHaveFile) {
file = FileOpen(szFile, 0, NULL);
if (file == NULL)
goto LDone;
}
is.fileIn = file;
// All files have to begin with the -@ switch file type identifier.
ch = getc(file); ungetc(ch, file);
if (ch != '@') {
sprintf(szLine,
"The command file '%s' is not in any valid format (character %d).",
szFile, (int)ch);
PrintWarning(szLine);
goto LDone;
}
loop {
while (!feof(file) && (ch = getbyte()) < ' ')
;
if (feof(file))
break;
for (szLine[0] = ch, i = 1; i < cchSzLine-1 && !feof(file); i++) {
ch = getbyte();
if (!((uchar)ch >= ' ' || ch == chTab))
break;
szLine[i] = ch;
}
if (ch != '\n')
ch = getbyte();
// Windows Notepad files sometimes have character 255 at end of file.
if (i > 0 && (uchar)szLine[i-1] == 255)
i--;
szLine[i] = chNull;
argc = NParseCommandLine(szLine, argv);
if (!FProcessSwitches(argc, argv))
goto LDone;
}
fRet = fTrue;
LDone:
is.fileIn = NULL;
if (!fHaveFile && file != NULL)
fclose(file);
return fRet;
}
// Take the current chart information, and write it out to the file as
// indicated by the -o switch. This is only executed at the end of program
// execution if the -o switch is in effect.
flag FOutputData(void)
{
char sz[cchSzMax], *pch;
FILE *file;
int i, j, iMax;
real dst, rT;
if (us.fNoWrite)
return fFalse;
// Write other file formats if -od, -ol, -oa, -oq, or -ox is in effect.
if (us.nWriteFormat == 'd')
return FOutputSettings();
else if (us.nWriteFormat == 'l')
return FOutputChartList();
else if (us.nWriteFormat == 'a')
return FOutputAAFFile();
else if (us.nWriteFormat == 'q')
return FOutputQuickFile();
#ifdef SWISSGRAPH
else if (us.nWriteFormat == 'x')
return FOutputDaedalusStar();
#endif
file = fopen(is.szFileOut, "w"); // Create and open the file for output.
if (file == NULL) {
sprintf(sz, "File '%s' can not be created.", is.szFileOut);
PrintError(sz);
return fFalse;
}
if (us.nWriteFormat != '0') {
// Write the chart information to the file.
if (Mon < 1) {
fclose(file);
PrintError("Can't output chart with no time/space to file.");
return fFalse;
}
if (us.fWriteOld) {
dst = Dst;
if (dst == dstAuto)
dst = (real)is.fDst;
fprintf(file, "%d\n%d\n%d\n%.2f\n%.2f\n%.2f\n%.2f\n", Mon, Day, Yea,
DegToDec(Tim), DegToDec(Zon-dst), DegToDec(Lon), DegToDec(Lat));
} else {
fprintf(file, "@AI%s ; %s chart info.\n", szVerCore, szAppName);
i = us.fAnsiChar;
us.fAnsiChar = fFalse;
fprintf(file, "%cqb %.3s %d %d %s %s ", chSwitch, szMonth[Mon],
Day, Yea, SzTim(Tim), Dst == 0.0 ? "ST" : (Dst == 1.0 ? "DT" :
Dst == dstAuto ? "Autodetect" : SzZone(Dst)));
fprintf(file, "%s %s\n", SzZone(Zon), SzLocation(Lon, Lat));
// Don't want double quotes within double quoted string parameters.
fprintf(file, "%czi \"", chSwitch);
for (pch = ciMain.nam; *pch; pch++)
putc(*pch != '"' ? *pch : '\'', file);
fprintf(file, "\" \"");
for (pch = ciMain.loc; *pch; pch++)
putc(*pch != '"' ? *pch : '\'', file);
fprintf(file, "\"\n");
us.fAnsiChar = i;
}
} else {
// However, if the -o0 switch is in effect, then write the actual
// positions of the planets and houses to the file instead.
if (us.fWriteOld) {
for (i = 1; i <= oNorm; i++) {
j = (int)planet[i];
fprintf(file, "%.3s: %2d %2d %10.7f\n", szObjName[i],
j%30, j/30+1, RFract(planet[i])*60.0); // Position
rT = planetalt[i];
fprintf(file, "[%c]: %3d %12.8f\n", // Altitude
ret[i] >= 0.0 ? 'D' : chRet, (int)(RSgn(rT)*
RFloor(RAbs(rT))), (rT-(real)(int)rT)*60.0); // Retrograde?
if (i == oNod)
i = oFor-1;
else if (i == oFor)
i = oMC -1;
else if (i == oMC)
i = oAsc-1;
else if (i == oAsc)
i = oVtx-1;
else if (i == oVtx) // Skip minor cusps to write Uranians
i = us.fUranian ? uranLo-1 : cObj;
}
for (i = 1; i <= cSign/2; i++) { // Write first six cusp positions
j = (int)chouse[i];
fprintf(file, "H_%c: %2d %2d %10.7f\n",
'a'+i-1, j%30, j/30+1, RFract(chouse[i])*60.0);
}
} else {
fprintf(file, "@AP%s ; %s chart positions.\n", szVerCore, szAppName);
fprintf(file, "%czi \"%s\" \"%s\"\n", chSwitch, ciMain.nam, ciMain.loc);
iMax = Max(is.nObj, cuspHi);
for (i = 0; i <= iMax; i++) if (!ignore[i] || FCusp(i)) {
fprintf(file, "%cYF ", chSwitch);
fprintf(file, i != oUrT && i != oAlr ? "%-4.4s" : "%-6.6s",
szObjName[i]);
rT = FBetween(i, cuspLo-1+4, cuspLo-1+9) ?
chouse[i-(cuspLo-1)] : planet[i];
j = (int)rT;
fprintf(file, "%3d %.3s %12.9f,",
j%30, szSignName[j/30+1], RFract(rT)*60.0);
rT = planetalt[i] < 0.0 && planetalt[i] > -1.0 ?
planetalt[i] : RFract(RAbs(planetalt[i]));
fprintf(file, "%4d %13.9f,", (int)planetalt[i], rT*60.0);
rT = i > oNorm ? 999.0 : (i == oMoo && !us.fEphemFiles ? 0.0026 :
PtLen(space[i]));
fprintf(file, " %13.9f %13.9f\n", ret[i], rT);
}
}
}
// Now write any extra strings that were on the command line after the -o
// specification but before the next switch, to the file as comments.
for (i = 1; i < is.cszComment; i++) {
is.rgszComment++;
fprintf(file, "%s%s\n", us.fWriteOld ? "" : "; ", is.rgszComment[1]);
}
fclose(file);
return fTrue;
}
#define AdvancePast(ch) while (*pch && *pch != (ch)) pch++; \
if (*pch == (ch)) pch++;
// Load an Astrological Exchange Format (AAF) file into the default set of
// chart information, given a file name or a file handle.
flag FProcessAAFFile(CONST char *szFile, FILE *file)
{
char szLine[cchSzLine], sz[cchSzMax], *pch, *sz1, *sz2, ch;
int i, grf;
flag fHaveFile, fRet = fFalse;
fHaveFile = (file != NULL);
if (!fHaveFile) {
file = FileOpen(szFile, 0, NULL);
if (file == NULL)
goto LDone;
}
is.fileIn = file;
do {
grf = 0;
while (grf != 3) {
while (!feof(file) && (ch = getc(file)) < ' ')
;
if (feof(file))
break;
for (szLine[0] = ch, i = 1; i < cchSzLine-1 && !feof(file) &&
(uchar)(szLine[i] = getc(file)) >= ' '; i++)
;
szLine[i] = chNull;
if (szLine[0] == chNull)
continue;
if (szLine[0] != '#') {
sprintf(szLine,
"The AAF file '%s' has a line not starting with '#' (character %d).",
szFile, (int)ch);
PrintWarning(szLine);
goto LDone;
}
if (szLine[1] == ':') // Skip over comment lines
continue;
// Input row #1.
if (FEqRgch(szLine, "#A93:", 5, fFalse)) {
sz1 = pch = szLine + 5;
AdvancePast(',');
pch[-1] = chNull;
sz2 = pch;
AdvancePast(',');
pch[-1] = chNull;
if (*sz1 && !FEqSz(sz1, "*"))
sprintf(sz, "%s %s", sz2, sz1);
else
sprintf(sz, "%s", sz2);
ciCore.nam = SzCopy(sz);
AdvancePast(',');
DD = NFromSz(pch);
AdvancePast('.');
MM = NParseSz(pch, pmMon);
AdvancePast('.');
YY = NParseSz(pch, pmYea);
AdvancePast(',');
sz1 = pch;
AdvancePast(',');
pch[-1] = chNull;
TT = RParseSz(sz1, pmTim);
sz1 = pch;
AdvancePast(',');
pch[-1] = chNull;
sz2 = pch;
// Convert something like "Seattle, WA (USA)" to "Seattle, WA, USA".
AdvancePast('(');
if (pch[-1] == '(') {
pch[-2] = ','; pch[-1] = ' ';
for (; *pch; pch++)
if (*pch == ')')
*pch = chNull;
}
if (*sz1)
sprintf(sz, "%s, %s", sz1, sz2);
else
sprintf(sz, "%s", sz2);
ciCore.loc = SzCopy(sz);
grf |= 1;
// Input row #2.
} else if (FEqRgch(szLine, "#B93:", 5, fFalse)) {
pch = szLine + 5;
AdvancePast(',');
AA = RParseSz(pch, pmLon);
AdvancePast(',');
OO = RParseSz(pch, pmLat);
AdvancePast(',');
ZZ = RParseSz(pch, pmZon);
AdvancePast(',');
if (*pch == 'D') // Double Daylight Saving time
SS = 2.0;
else if (*pch == 'L') // Local Mean Time
SS = 0.0;
else
SS = RParseSz(pch, pmDst);
grf |= 2;
} else {
sprintf(szLine,
"The AAF file '%s' has a line that can't be parsed.", szFile);
PrintWarning(szLine);
goto LDone;
}
}
if (!FValidMon(MM) || !FValidDay(DD, MM, YY) || !FValidYea(YY) ||
!FValidTim(TT) || !FValidZon(ZZ) || !FValidLon(OO) || !FValidLat(AA)) {
PrintWarning("Values in AAF file are out of range.");
goto LDone;
}
if (!FAppendCIList(&ciCore))
goto LDone;
} while (!feof(file));
fRet = fTrue;
LDone:
is.fileIn = NULL;
if (!fHaveFile)
fclose(file);
return fRet;
}
// Write the current chart information to an Astrological Exchange Format
// (AAF) file, as indicated by the -oa switch.
flag FOutputAAFFile(void)
{
char sz[cchSzMax], *pch;
FILE *file;
int nSav;
flag fSav;
if (us.fNoWrite)
return fFalse;
file = fopen(is.szFileOut, "w"); // Create and open the file for output.
if (file == NULL) {
sprintf(sz, "AAF file '%s' can not be created.", is.szFileOut);
PrintError(sz);
return fFalse;
}
fprintf(file, "#: %s %s\n", szAppName, szVersionCore);
// Output row #1.
fprintf(file, "#A93:*,");
for (pch = ciMain.nam; *pch; pch++)
putc(*pch == ',' ? ';' : *pch, file);
fSav = us.fEuroTime; us.fEuroTime = fTrue;
fprintf(file, ",*,%d.%d.%d,%s,", Day, Mon, Yea, SzTim(Tim));
us.fEuroTime = fSav;
for (pch = ciMain.loc; *pch && *pch != ','; pch++)
putc(*pch, file);
putc(',', file);
if (!*pch)
putc('*', file);
else {
// Convert commas to other characters, since they delimit fields.
for (pch++; *pch == ' '; pch++)
;
for (; *pch && *pch != ','; pch++)
putc(*pch, file);
if (*pch == ',') {
// Convert something like "Seattle, WA, USA" to "Seattle, WA (USA)".
fprintf(file, " (");
for (pch++; *pch == ' '; pch++)
;
for (; *pch; pch++)
putc(*pch == ',' ? ';' : *pch, file);
putc(')', file);
}
}
// Output row #2.
nSav = us.fAnsiChar; us.fAnsiChar = 4;
fprintf(file, "\n#B93:%f,%s,%s,", JulianDayFromTime(is.T),
SzLocation(Lon, Lat), Zon != zonLMT && Zon != zonLAT ? SzZone(Zon) : "*");
us.fAnsiChar = nSav;
fprintf(file, "%c\n", Zon == zonLMT || Zon == zonLAT ? 'L' :
(Dst != 0.0 ? '1' : '0'));
fprintf(file, "#: AAF end\n");
fclose(file);
return fTrue;
}
#define FZonDst(sz) ((sz)[1] == 'D' || (sz)[1] == 'W')
// Load a Quick*Chart format file into the default set of chart information,
// given a file name or a file handle.
flag FProcessQuickFile(CONST char *szFile, FILE *file)
{
char szLine[cchSzMax], sz[cchSzDef];
int i;
flag fHaveFile, fRet = fFalse;
fHaveFile = (file != NULL);
if (!fHaveFile) {
file = FileOpen(szFile, 0, NULL);
if (file == NULL)
goto LDone;
}
is.fileIn = file;
do {
fgets(szLine, cchSzMax, file);
if (feof(file)) {
fRet = fTrue;
goto LDone;
}
// Parse line of 100 characters.
CopyRgb((pbyte)szLine, (pbyte)sz, 23);
for (i = 23-1; i >= 0 && sz[i] <= ' '; i--)
;
sz[i+1] = chNull;
ciCore.nam = SzCopy(sz);
CopyRgchToSz(szLine+23, 3, sz, cchSzDef);
MM = NParseSz(sz, pmMon);
DD = NParseSz(szLine+23+3, pmDay);
CopyRgchToSz(szLine+23+7, 5, sz, cchSzDef);
YY = NParseSz(sz, pmYea);
CopyRgchToSz(szLine+23+12, 24-12, sz, cchSzDef);
TT = RParseSz(sz, pmTim);
if (FEqRgch(&szLine[23+24], "LMT", 3, fTrue))
ZZ = zonLMT;
else {
CopyRgchToSz(szLine+23+24+3, 9-3, sz, cchSzDef);
ZZ = RParseSz(sz, pmZon);
}
CopyRgchToSz(szLine+23+24+9, 10, sz, cchSzDef);
OO = RParseSz(sz, pmLon);
CopyRgchToSz(szLine+23+24+9+10, 9, sz, cchSzDef);
AA = RParseSz(sz, pmLat);
CopyRgb((pbyte)(szLine+23+24+9+10+9), (pbyte)sz, 25);
for (i = 25-1; i >= 0 && sz[i] <= ' '; i--)
;
sz[i+1] = chNull;
ciCore.loc = SzCopy(sz);
SS = 0.0;
if (FZonDst(&szLine[23+24])) {
ZZ += 1.0; SS += 1.0;
}
if (!FValidMon(MM) || !FValidDay(DD, MM, YY) || !FValidYea(YY) ||
!FValidTim(TT) || !FValidZon(ZZ) || !FValidLon(OO) || !FValidLat(AA)) {
PrintWarning("Values in Quick*Chart file are out of range.");
goto LDone;
}
if (!FAppendCIList(&ciCore))
goto LDone;
} while (!feof(file));
fRet = fTrue;
LDone:
is.fileIn = NULL;
if (!fHaveFile)
fclose(file);
return fRet;
}
// Write the current chart information or current chart list to an Quick*Chart
// format file, as indicated by the -oq switch.
flag FOutputQuickFile(void)
{
char sz[cchSzMax];
FILE *file = NULL;
real rOff, rDst;
int i, iMax, j, fSav1;
flag fRet = fFalse, fSav2;
CI *pci;
if (us.fNoWrite)
goto LDone;
file = fopen(is.szFileOut, "w"); // Create and open the file for output.
if (file == NULL) {
sprintf(sz, "Quick*Chart file '%s' can not be created.", is.szFileOut);
PrintError(sz);
goto LDone;
}
iMax = (is.cci > 1 ? is.cci : 1);
for (i = 0; i < iMax; i++) {
pci = iMax <= 1 ? &ciMain : &is.rgci[i];
if (!FBetween(pci->yea, -9999, 99999)) {
PrintWarning("Can't save this chart to Quick*Chart format because the "
"Year field is more than 5 characters long.");
goto LDone;
}
// Output line of 101 characters.
fprintf(file, "%-23.23s", pci->nam);
fprintf(file, "%c%c%c", szMonth[pci->mon][0],
ChCap(szMonth[pci->mon][1]), ChCap(szMonth[pci->mon][2]));
fSav1 = us.fAnsiChar; us.fAnsiChar = 4;
fSav2 = is.fSeconds; is.fSeconds = fTrue;
fprintf(file, "%3d,%5d%s", pci->day, pci->yea, SzTim(pci->tim));
us.fAnsiChar = fSav1; is.fSeconds = fSav2;
rDst = (pci->dst == dstAuto ? (real)is.fDst : pci->dst);
rOff = (pci->zon == zonLMT ? pci->lon / 15.0 : pci->zon) - rDst;
if (pci->zon == zonLMT)
sprintf(sz, "LMT");
else {
sprintf(sz, " ");
// Search for the 3 character time zone string that best matches offset.
for (j = 0; j < cZone; j++)
if (FSameR(rZon[j], rOff) && CchSz(szZon[j]) == 3 &&
FZonDst(szZon[j]) == (rDst == 1.0)) {
sprintf(sz, "%s", szZon[j]);
break;
}
}
fprintf(file, " %s%c%02d:%02d", sz, rOff < 0.0 ? '-' : '+',
(int)RAbs(rOff), (int)(RFract(RAbs(rOff))*60.0+rRound/60.0));
fprintf(file, "%03d%c%02d'%02d", (int)RAbs(pci->lon), pci->lon < 0.0 ?
'E' : 'W', (int)(RFract(RAbs(pci->lon))*60.0+rRound/60.0), 0);
fprintf(file, " %02d%c%02d'%02d", (int)RAbs(pci->lat), pci->lat < 0.0 ?
'S' : 'N', (int)(RFract(RAbs(pci->lat))*60.0+rRound/60.0), 0);
fprintf(file, " %-25.25s \n", pci->loc);
}
fRet = fTrue;
LDone:
if (file != NULL)
fclose(file);
return fRet;
}
// Load a Astrodatabank XML format file into the default set of chart
// information, given a file name or a file handle.
flag FProcessADBFile(CONST char *szFile, FILE *file)
{
char szLine[cchSzLine], sz[cchSzDef], szLoc1[cchSzDef], szLoc2[cchSzDef],
ch, *pch, *pch2;
int i, grf, cchSz = CchSz(us.szADB);
flag fHaveFile, fDidOne = fFalse, fDidStart, fDidEnd, fDidLon, fRet = fFalse;
fHaveFile = (file != NULL);
if (!fHaveFile) {
file = FileOpen(szFile, 0, NULL);
if (file == NULL)
goto LDone;
}
is.fileIn = file;
do {
#ifdef EXPRESS
if (!us.fExpOff && FSzSet(us.szExpADB)) {
for (i = us.iExpADB; i < us.iExpADB + us.cExpADB; i++)
if (!ExpSetN(i, 0))
goto LDone;
}
#endif
fDidStart = fDidEnd = fFalse;
grf = 0;
while (!fDidEnd) {
while (!feof(file) && (ch = getc(file)) < ' ')
;
if (feof(file))
break;
for (szLine[0] = ch, i = 1; i < cchSzLine-1 && !feof(file) &&
(uchar)(szLine[i] = getc(file)) >= ' '; i++)
;
szLine[i] = chNull;
fDidLon = fFalse;
for (pch = szLine; *pch; pch++) {
if (FEqRgch(pch, "<adb_entry", 10, fFalse))
fDidStart = fTrue;
else if (!fDidStart)
continue;
if (FEqRgch(pch, "</adb_entry>", 12, fFalse))
fDidEnd = fTrue;
if ((grf & 1) == 0 && FEqRgch(pch, "imonth=\"", 8, fFalse)) {
MM = atoi(pch + 8);
grf |= 1;
}
if ((grf & 2) == 0 && FEqRgch(pch, "iday=\"", 6, fFalse)) {
DD = atoi(pch + 6);
grf |= 2;
}
if ((grf & 4) == 0 && FEqRgch(pch, "iyear=\"", 7, fFalse)) {
YY = atoi(pch + 7);
grf |= 4;
}
if ((grf & 8) == 0 && FEqRgch(pch, "sbtime_ampm=\"", 13, fFalse)) {
pch += 13;
for (pch2 = pch; *pch2 && *pch2 != '"'; pch2++)
;
CopyRgchToSz(pch, pch2 - pch, sz, cchSzDef);
if (*sz)
TT = RParseSz(sz, pmTim);
else
TT = 12.0; // Some records are "unknown, 12:00 used"
grf |= 8;
}
if ((grf & 16) == 0 && FEqRgch(pch, "ctimetype=\"", 11, fFalse)) {
if (pch[11] != 'l') {
SS = pch[11] == 'd' ? 1.0 : 0.0;
grf |= 16;
} else {
SS = 0.0; ZZ = zonLMT;
grf |= (16 | 32);
}
}
if ((grf & 32) == 0 && FEqRgch(pch, "stmerid=\"", 9, fFalse)) {
pch += 9;
for (pch2 = pch; *pch2 && *pch2 != '"'; pch2++)
;
CopyRgchToSz(pch, pch2 - pch, sz, cchSzDef);
ZZ = RParseSz(sz, pmZon);
grf |= 32;
}
if ((grf & 64) == 0 && FEqRgch(pch, "slong=\"", 7, fFalse)) {
OO = RParseSz(pch + 7, pmLon);
grf |= 64;
fDidLon = fTrue;
}
if ((grf & 128) == 0 && FEqRgch(pch, "slati=\"", 7, fFalse)) {
AA = RParseSz(pch + 7, pmLat);
grf |= 128;
}
if ((grf & 256) == 0 && FEqRgch(pch, "<sflname>", 9, fFalse)) {
pch += 9;
while (*pch == ' ')
pch++;
for (pch2 = pch; *pch2 && *pch2 != '<'; pch2++)
;
CopyRgchToSz(pch, pch2 - pch, sz, cchSzDef);
ConvertSzFromUTF8(sz);
ciCore.nam = SzCopy(sz);
grf |= 256;
}
if ((grf & 512) == 0 && fDidLon && FEqRgch(pch, "\">", 2, fFalse)) {
pch += 2;
for (pch2 = pch; *pch2 && *pch2 != '<'; pch2++)
;
CopyRgchToSz(pch, pch2 - pch, szLoc1, cchSzDef);
grf |= 512;
}
if ((grf & 1024) == 0 && FEqRgch(pch, "<country", 8, fFalse)) {
for (pch2 = pch + 8; *pch2 && *pch2 != '>'; pch2++)
;
pch = pch2 + (*pch2 == '>');
for (pch2 = pch; *pch2 && *pch2 != '<'; pch2++)
;
CopyRgchToSz(pch, pch2 - pch, szLoc2, cchSzDef);
sprintf(sz, "%s, %s", szLoc1, szLoc2);
ConvertSzFromUTF8(sz);
ciCore.loc = SzCopy(sz);
grf |= 1024;
}
if (cchSz > 0 && (grf & 2048) == 0 &&
FEqRgch(pch, us.szADB, cchSz, fFalse))
grf |= 2048;
#ifdef EXPRESS
if (!us.fExpOff && FSzSet(us.szExpADB)) {
for (i = us.iExpADB; i < us.iExpADB + us.cExpADB; i++) {
pch2 = ExpGetString(i);
if (FSzSet(pch2) && FEqRgch(pch2, pch, CchSz(pch2), fFalse)) {
if (!ExpSetN(i, NExpGet(i) + 1))
goto LDone;
}
}
}
#endif
}
}
if ((grf & 2047) != 2047) {
if (grf == 0 && fDidOne) {
fRet = fTrue;
goto LDone;
}
if (grf == 0)
PrintWarning("Couldn't find any charts in Astrodatabank file.");
else
PrintWarning("Couldn't detect all fields in Astrodatabank file.");
goto LDone;
}
ZZ += SS;
if (!FValidMon(MM) || !FValidDay(DD, MM, YY) || !FValidYea(YY) ||
!FValidTim(TT) || !FValidZon(ZZ) || !FValidLon(OO) || !FValidLat(AA)) {
PrintWarning("Values in Astrodatabank file are out of range.");
goto LDone;
}
if (cchSz > 0 && (grf & 2048) == 0)
continue;
#ifdef EXPRESS
// Skip current chart record if AstroExpression says to do so.
if (!us.fExpOff && FSzSet(us.szExpADB)) {
if (!NParseExpression(us.szExpADB))
continue;
}
#endif
if (!FAppendCIList(&ciCore))
goto LDone;
fDidOne = fTrue;
} while (!feof(file));
fRet = fTrue;
LDone:
is.fileIn = NULL;
if (!fHaveFile)
fclose(file);
return fRet;
}
// Load a Solar Fire chart export text file into the default set of chart
// information, given a file name or a file handle.
flag FProcessSFTextFile(CONST char *szFile, FILE *file)
{
char szLine[cchSzLine], *pch, *pch2;
int nState = -1, cch;
flag fHaveFile, fRet = fFalse;
fHaveFile = (file != NULL);
if (!fHaveFile) {
file = FileOpen(szFile, 0, NULL);
if (file == NULL)
goto LDone;
}
is.fileIn = file;
loop {
fgets(szLine, cchSzMax, file);
if (feof(file))
break;
for (pch = szLine; *pch; pch++)
;
while (pch > szLine && pch[-1] <= ' ')
*(--pch) = chNull;
if (nState <= 0) {
if (*szLine == chNull)
continue;
if (nState < 0 && FMatchSz("Charts from Solar Fire", szLine))
continue;
if (nState < 0 && FMatchSz("Created by Esoteric Technologies", szLine)) {
nState = 0;
continue;
}
if (nState == 0)
nState = 1;
else
break;
}