1 | /* code to convert between .edb format and an Obj */
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2 |
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3 | #include <stdio.h>
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4 | #include <ctype.h>
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5 | #include <math.h>
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6 |
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7 | #if defined(__STDC__)
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8 | #include <stdlib.h>
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9 | #include <string.h>
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10 | #endif
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11 |
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12 | #include "P_.h"
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13 | #include "astro.h"
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14 | #include "circum.h"
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15 | #include "preferences.h"
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16 |
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17 | extern void zero_mem P_((void *loc, unsigned len));
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18 | extern double atod P_((char *buf));
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19 |
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20 | int get_fields P_((char *s, int delim, char *fields[]));
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21 | int db_set_field P_((char bp[], int id, PrefDateFormat pref, Obj *op));
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22 | int db_chk_planet P_((char name[], Obj *op));
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23 |
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24 | #define MAXDBLINE 256 /* longest allowed db line */
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25 |
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26 | #define FLDSEP ',' /* major field separator */
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27 | #define SUBFLD '|' /* subfield separator */
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28 | #define MAXFLDS 20 /* must be more than on any expected line */
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29 |
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30 | #define ASIZ(a) (sizeof(a)/sizeof(a[0]))
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31 |
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32 | static int line_candidate P_((char *buf));
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33 | static void crack_year P_((char *bp, PrefDateFormat pref, double *p));
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34 | static int db_get_field P_((Obj *op, int id, char *bp));
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35 | static int tle_sum P_((char *l));
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36 | static double tle_fld P_((char *l, int from, int thru));
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37 | static double tle_expfld P_((char *l, int start));
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38 |
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39 | /* crack the given .edb database line into op.
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40 | * if ok
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41 | * return 0
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42 | * else
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43 | * if whynot
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44 | * if not even a candidate
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45 | * set whynot[0] = '\0'
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46 | * else
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47 | * fill whynot with reason message.
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48 | * return -1
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49 | */
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50 | int
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51 | db_crack_line (s, op, whynot)
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52 | char s[];
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53 | Obj *op;
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54 | char whynot[];
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55 | {
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56 | char *flds[MAXFLDS]; /* point to each field for easy reference */
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57 | char *sflds[MAXFLDS]; /* point to each sub field for easy reference */
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58 | char copy[MAXDBLINE]; /* work copy; leave s untouched */
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59 | int nf, nsf; /* number of fields and subfields */
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60 | int i;
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61 |
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62 | /* basic initial check */
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63 | if (line_candidate (s) < 0) {
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64 | if (whynot)
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65 | whynot[0] = '\0';
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66 | return (-1);
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67 | }
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68 |
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69 | /* do all the parsing on a copy */
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70 | (void) strcpy (copy, s);
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71 | i = strlen(copy);
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72 | if (copy[i-1] == '\n')
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73 | copy[i-1] = '\0';
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74 |
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75 | /* parse into main fields */
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76 | nf = get_fields (copy, FLDSEP, flds);
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77 |
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78 | /* need at least 2: name and type */
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79 | if (nf < 2) {
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80 | if (whynot)
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81 | sprintf (whynot, "Found only %d fields", nf);
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82 | return (-1);
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83 | }
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84 |
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85 | /* switch out on type of object - the second field */
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86 | switch (flds[1][0]) {
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87 | case 'f': {
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88 | static int ids[] = {F_RA, F_DEC, F_MAG};
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89 | if (nf < 5 || nf > 7) {
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90 | if (whynot)
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91 | sprintf (whynot, "f needs 5-7 fields: %d", nf);
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92 | return (-1);
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93 | }
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94 | zero_mem ((void *)op, sizeof(ObjF));
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95 | op->o_type = FIXED;
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96 | nsf = get_fields(flds[1], SUBFLD, sflds);
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97 | if (nsf > 1 && db_set_field (sflds[1], F_CLASS, PREF_MDY, op) < 0) {
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98 | if (whynot)
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99 | sprintf (whynot, "Bad f class: %c", sflds[1][0]);
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100 | return (-1);
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101 | }
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102 | if (nsf > 2)
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103 | (void) db_set_field (sflds[2], F_SPECT, PREF_MDY, op);
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104 | for (i = 2; i < ASIZ(ids)+2; i++)
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105 | (void) db_set_field (flds[i], ids[i-2], PREF_MDY, op);
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106 | (void) db_set_field (nf>5 && flds[5][0] ? flds[5] : "2000",
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107 | F_EPOCH, PREF_MDY, op);
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108 | if (nf == 7)
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109 | (void) db_set_field (flds[6], F_SIZE, PREF_MDY, op);
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110 | break;
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111 | }
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112 |
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113 | case 'e': {
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114 | static int ids[] = {E_INC, E_LAN, E_AOP, E_A, E_N, E_E, E_M,
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115 | E_CEPOCH, E_EPOCH, E_M1, E_M2
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116 | };
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117 | if (nf != 13 && nf != 14) {
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118 | if (whynot)
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119 | sprintf (whynot, "e needs 13 or 14 fields: %d", nf);
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120 | return (-1);
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121 | }
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122 | zero_mem ((void *)op, sizeof(ObjE));
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123 | op->o_type = ELLIPTICAL;
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124 | for (i = 2; i < ASIZ(ids)+2; i++)
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125 | (void) db_set_field (flds[i], ids[i-2], PREF_MDY, op);
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126 | if (nf == 14)
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127 | (void) db_set_field (flds[13], E_SIZE, PREF_MDY, op);
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128 | break;
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129 | }
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130 |
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131 | case 'h': {
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132 | static int ids[]= {H_EP,H_INC,H_LAN,H_AOP,H_E,H_QP,H_EPOCH,H_G,H_K};
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133 | if (nf != 11 && nf != 12) {
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134 | if (whynot)
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135 | sprintf (whynot, "h needs 11 or 12 fields: %d", nf);
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136 | return (-1);
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137 | }
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138 | zero_mem ((void *)op, sizeof(ObjH));
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139 | op->o_type = HYPERBOLIC;
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140 | for (i = 2; i < ASIZ(ids)+2; i++)
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141 | (void) db_set_field (flds[i], ids[i-2], PREF_MDY, op);
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142 | if (nf == 12)
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143 | (void) db_set_field (flds[11], H_SIZE, PREF_MDY, op);
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144 | break;
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145 | }
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146 |
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147 | case 'p': {
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148 | static int ids[] = {P_EP,P_INC,P_AOP,P_QP,P_LAN,P_EPOCH,P_G,P_K};
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149 | if (nf != 10 && nf != 11) {
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150 | if (whynot)
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151 | sprintf (whynot, "p needs 10 or 11 fields: %d", nf);
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152 | return (-1);
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153 | }
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154 | zero_mem ((void *)op, sizeof(ObjP));
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155 | op->o_type = PARABOLIC;
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156 | for (i = 2; i < ASIZ(ids)+2; i++)
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157 | (void) db_set_field (flds[i], ids[i-2], PREF_MDY, op);
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158 | if (nf == 11)
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159 | (void) db_set_field (flds[10], P_SIZE, PREF_MDY, op);
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160 | break;
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161 | }
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162 |
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163 | case 'E': {
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164 | static int ids[] = {ES_EPOCH,ES_INC,ES_RAAN,ES_E,ES_AP,ES_M,ES_N,
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165 | ES_DECAY,ES_ORBIT};
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166 | if (nf != 11 && nf != 12) {
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167 | if (whynot)
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168 | sprintf (whynot, "E needs 11 or 12 fields: %d", nf);
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169 | return (-1);
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170 | }
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171 | zero_mem ((void *)op, sizeof(ObjES));
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172 | op->o_type = EARTHSAT;
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173 | for (i = 2; i < ASIZ(ids)+2; i++)
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174 | (void) db_set_field (flds[i], ids[i-2], PREF_MDY, op);
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175 | if (nf == 12)
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176 | (void) db_set_field (flds[11], ES_DRAG, PREF_MDY, op);
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177 | break;
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178 | }
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179 |
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180 | case 'P':
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181 | /* allow, though ignore, anything after the P */
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182 | i = db_chk_planet (flds[0], op); /* does o_name too */
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183 | if (i < 0) {
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184 | if (whynot)
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185 | sprintf (whynot, "Bad planet: %s", flds[0]);
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186 | }
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187 | return (i);
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188 |
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189 | default:
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190 | if (whynot)
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191 | sprintf (whynot, "Unknown type: %c", flds[1][0]);
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192 | return (-1);
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193 | }
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194 |
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195 | /* load up o_name */
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196 | (void) db_set_field (flds[0], O_NAME, PREF_MDY, op);
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197 |
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198 | return (0);
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199 | }
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200 |
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201 | /* return 0 if TLE checksum is ok, else -1 */
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202 | static int
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203 | tle_sum (l)
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204 | char *l;
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205 | {
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206 | char *lastl = l + 68;
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207 | int sum;
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208 |
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209 | for (sum = 0; l < lastl; ) {
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210 | char c = *l++;
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211 | if (c == '\0')
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212 | return (-1);
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213 | if (isdigit(c))
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214 | sum += c - '0';
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215 | else if (c == '-')
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216 | sum++;
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217 | }
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218 |
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219 | return (*l - '0' == (sum%10) ? 0 : -1);
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220 | }
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221 |
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222 | /* extract the given columns and return value.
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223 | * N.B. from and to are 1-based within l
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224 | */
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225 | static double
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226 | tle_fld (l, from, thru)
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227 | char *l;
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228 | int from, thru;
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229 | {
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230 | char buf[32];
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231 |
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232 | sprintf (buf, "%.*s", thru-from+1, l+from-1);
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233 | return (atod (buf));
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234 | }
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235 |
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236 | /* extract the exponential value starting at the given column.
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237 | * N.B. start is 1-based within l
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238 | */
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239 | static double
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240 | tle_expfld (l, start)
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241 | char *l;
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242 | int start;
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243 | {
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244 | char buf[32];
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245 | double v;
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246 |
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247 | sprintf (buf, ".%.*s", 5, l+start);
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248 | v = atod (buf) * pow (10.0, tle_fld(l, start+6, start+7));
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249 | if (l[start-1] == '-')
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250 | v = -v;
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251 | return (v);
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252 | }
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253 |
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254 | /* given 3 lines, first of which is name and next 2 are TLE, fill op.
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255 | * we skip leading whitespace on all lines.
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256 | * we do /not/ assume the 2 TLE lines are 0 terminated, but we do reach out into
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257 | * each as far as 69 chars.
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258 | * we detect nonconformance as efficiently as possible.
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259 | * name ends at first '\0', '\r' or '\n'.
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260 | * if ok return 0 else return -1
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261 | */
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262 | int
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263 | db_tle (name, l1, l2, op)
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264 | char *name, *l1, *l2;
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265 | Obj *op;
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266 | {
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267 | double ep;
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268 | int i;
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269 |
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270 | /* check for correct line numbers, macthing satellite numbers and
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271 | * correct checksums.
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272 | */
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273 | while (isspace(*l1))
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274 | l1++;
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275 | if (*l1 != '1')
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276 | return (-1);
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277 | while (isspace(*l2))
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278 | l2++;
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279 | if (*l2 != '2')
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280 | return (-1);
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281 | if (strncmp (l1+2, l2+2, 5))
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282 | return (-1);
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283 | if (tle_sum (l1) < 0)
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284 | return (-1);
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285 | if (tle_sum (l2) < 0)
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286 | return (-1);
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287 |
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288 | /* assume it's ok from here out */
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289 |
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290 | /* fresh */
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291 | zero_mem ((void *)op, sizeof(ObjES));
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292 | op->o_type = EARTHSAT;
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293 |
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294 | /* name, sans leading and trailing whitespace */
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295 | while (isspace(*name))
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296 | name++;
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297 | i = strcspn (name, "\r\n");
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298 | while (i > 0 && name[i-1] == ' ')
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299 | --i;
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300 | if (i == 0)
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301 | return (-1);
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302 | if (i > MAXNM-1)
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303 | i = MAXNM-1;
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304 | sprintf (op->o_name, "%.*s", i, name);
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305 |
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306 | /* goodies from "line 1" */
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307 | op->es_drag = (float) tle_expfld (l1, 54);
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308 | i = (int) tle_fld (l1, 19, 20);
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309 | if (i < 57)
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310 | i += 100;
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311 | cal_mjd (1, tle_fld(l1, 21, 32), i+1900, &ep);
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312 | op->es_epoch = ep;
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313 |
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314 | /* goodies from "line 2" */
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315 | op->es_n = tle_fld (l2, 53, 63);
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316 | op->es_inc = (float)tle_fld (l2, 9, 16);
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317 | op->es_raan = (float)tle_fld (l2, 18, 25);
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318 | op->es_e = (float)(tle_fld (l2, 27, 33) * 1e-7);
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319 | op->es_ap = (float)tle_fld (l2, 35, 42);
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320 | op->es_M = (float)tle_fld (l2, 44, 51);
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321 | op->es_orbit = (int)tle_fld (l2, 64, 68);
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322 |
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323 | /* yes! */
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324 | return (0);
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325 | }
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326 |
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327 | /* write the given Obj in .edb format to lp[].
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328 | * we do _not_ include a trailing '\n'.
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329 | */
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330 | void
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331 | db_write_line (op, lp)
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332 | Obj *op;
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333 | char *lp;
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334 | {
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335 | int priorpref;
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336 | int i;
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337 |
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338 | /* .edb format always uses MDY.
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339 | * N.B. must restore old value before returning from here!
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340 | */
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341 | priorpref = pref_set (PREF_DATE_FORMAT, PREF_MDY);
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342 |
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343 | switch (op->o_type) {
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344 | case FIXED: {
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345 | static int ids[] = {F_CLASS, F_SPECT, F_RA, F_DEC, F_MAG, F_EPOCH,
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346 | F_SIZE
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347 | };
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348 |
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349 | sprintf (lp, "%s,f", op->o_name);
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350 | lp += strlen(lp);
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351 | for (i = 0; i < ASIZ(ids); i++)
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352 | lp += db_get_field (op, ids[i], lp);
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353 | break;
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354 | }
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355 |
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356 | case ELLIPTICAL: {
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357 | static int ids[] = {E_INC, E_LAN, E_AOP, E_A, E_N, E_E, E_M,
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358 | E_CEPOCH, E_EPOCH, E_M1, E_M2, E_SIZE
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359 | };
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360 |
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361 | sprintf (lp, "%s,e", op->o_name);
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362 | lp += strlen(lp);
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363 | for (i = 0; i < ASIZ(ids); i++)
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364 | lp += db_get_field (op, ids[i], lp);
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365 | break;
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366 | }
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367 |
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368 | case HYPERBOLIC: {
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369 | static int ids[]= {H_EP, H_INC, H_LAN, H_AOP, H_E, H_QP, H_EPOCH,
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370 | H_G, H_K, H_SIZE
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371 | };
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372 |
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373 | sprintf (lp, "%s,h", op->o_name);
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374 | lp += strlen(lp);
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375 | for (i = 0; i < ASIZ(ids); i++)
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376 | lp += db_get_field (op, ids[i], lp);
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377 | break;
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378 | }
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379 |
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380 | case PARABOLIC: {
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381 | static int ids[] = {P_EP, P_INC, P_AOP, P_QP, P_LAN, P_EPOCH, P_G,
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382 | P_K, P_SIZE
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383 | };
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384 |
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385 | sprintf (lp, "%s,p", op->o_name);
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386 | lp += strlen(lp);
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387 | for (i = 0; i < ASIZ(ids); i++)
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388 | lp += db_get_field (op, ids[i], lp);
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389 | break;
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390 | }
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391 |
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392 | case EARTHSAT: {
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393 | static int ids[] = {ES_EPOCH, ES_INC, ES_RAAN, ES_E, ES_AP, ES_M,
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394 | ES_N, ES_DECAY,ES_ORBIT,ES_DRAG
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395 | };
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396 |
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397 | sprintf (lp, "%s,E", op->o_name);
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398 | lp += strlen(lp);
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399 | for (i = 0; i < ASIZ(ids); i++)
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400 | lp += db_get_field (op, ids[i], lp);
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401 | break;
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402 | }
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403 |
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404 | case PLANET:
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405 | sprintf (lp, "%s,P", op->o_name);
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406 | lp += strlen(lp);
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407 | break;
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408 |
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409 | default:
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410 | printf ("Unknown type for %s: %d\n", op->o_name, op->o_type);
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411 | exit(1);
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412 | }
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413 |
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414 | /* restore date format preference */
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415 | (void) pref_set (PREF_DATE_FORMAT, priorpref);
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416 | }
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417 |
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418 | /* given a text buffer and a field id, and a PREF_DATE_FORMAT,
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419 | * set the corresponding member in *op.
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420 | * return 0 if ok, else -1.
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421 | */
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422 | int
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423 | db_set_field (bp, id, pref, op)
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424 | char bp[];
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425 | int id;
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426 | PrefDateFormat pref;
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427 | Obj *op;
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428 | {
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429 | double tmp;
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430 |
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431 | /* include all the enums and in numeric order to give us the best
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432 | * possible chance the compiler will implement this as a jump table.
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433 | */
|
---|
434 | switch (id) {
|
---|
435 | case O_TYPE:
|
---|
436 | printf ("db_set_field: called with id==O_TYPE\n");
|
---|
437 | exit(1);
|
---|
438 | break;
|
---|
439 | case O_NAME:
|
---|
440 | (void) strncpy (op->o_name, bp, sizeof(op->o_name)-1);
|
---|
441 | op->o_name[sizeof(op->o_name)-1] = '\0';
|
---|
442 | break;
|
---|
443 | case F_RA:
|
---|
444 | f_scansex (radhr(op->f_RA), bp, &tmp);
|
---|
445 | op->f_RA = (float) hrrad(tmp);
|
---|
446 | break;
|
---|
447 | case F_DEC:
|
---|
448 | f_scansex (raddeg(op->f_dec), bp, &tmp);
|
---|
449 | op->f_dec = (float) degrad(tmp);
|
---|
450 | break;
|
---|
451 | case F_EPOCH:
|
---|
452 | tmp = op->f_epoch;
|
---|
453 | crack_year (bp, pref, &tmp);
|
---|
454 | op->f_epoch = (float) tmp;
|
---|
455 | break;
|
---|
456 | case F_MAG:
|
---|
457 | set_fmag (op, atod(bp));
|
---|
458 | break;
|
---|
459 | case F_SIZE:
|
---|
460 | op->f_size = (float) atod(bp);
|
---|
461 | {
|
---|
462 | /* optional minor axis and position angle subfields */
|
---|
463 | char *sflds[MAXFLDS];
|
---|
464 | int nsf = get_fields(bp, SUBFLD, sflds);
|
---|
465 |
|
---|
466 | if (nsf == 3) {
|
---|
467 | set_ratio(op, op->s_size, atod(sflds[1]));
|
---|
468 | set_pa(op,degrad(atod(sflds[2])));
|
---|
469 | } else {
|
---|
470 | set_ratio(op,1,1); /* round */
|
---|
471 | set_pa(op,0.0);
|
---|
472 | }
|
---|
473 | }
|
---|
474 | break;
|
---|
475 | case F_CLASS:
|
---|
476 | switch (bp[0]) {
|
---|
477 | case 'A': case 'B': case 'C': case 'D': case 'F': case 'G':
|
---|
478 | case 'H': case 'K': case 'J': case 'L': case 'M': case 'N':
|
---|
479 | case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T':
|
---|
480 | case 'U': case 'V':
|
---|
481 | op->f_class = bp[0];
|
---|
482 | break;
|
---|
483 | default:
|
---|
484 | return (-1);
|
---|
485 | }
|
---|
486 | break;
|
---|
487 | case F_SPECT: {
|
---|
488 | int i, j;
|
---|
489 | /* fill f_spect all the way */
|
---|
490 | for (i = j = 0; i < sizeof(op->f_spect); i++)
|
---|
491 | if ((op->f_spect[i] = bp[j]) != 0)
|
---|
492 | j++;
|
---|
493 | break;
|
---|
494 | }
|
---|
495 |
|
---|
496 | case E_INC:
|
---|
497 | op->e_inc = (float) atod (bp);
|
---|
498 | break;
|
---|
499 | case E_LAN:
|
---|
500 | op->e_Om = (float) atod (bp);
|
---|
501 | break;
|
---|
502 | case E_AOP:
|
---|
503 | op->e_om = (float) atod (bp);
|
---|
504 | break;
|
---|
505 | case E_A:
|
---|
506 | op->e_a = (float) atod (bp);
|
---|
507 | break;
|
---|
508 | case E_N:
|
---|
509 | /* retired */
|
---|
510 | break;
|
---|
511 | case E_E:
|
---|
512 | op->e_e = atod (bp);
|
---|
513 | break;
|
---|
514 | case E_M:
|
---|
515 | op->e_M = (float) atod (bp);
|
---|
516 | break;
|
---|
517 | case E_CEPOCH:
|
---|
518 | crack_year (bp, pref, &op->e_cepoch);
|
---|
519 | break;
|
---|
520 | case E_EPOCH:
|
---|
521 | crack_year (bp, pref, &op->e_epoch);
|
---|
522 | break;
|
---|
523 | case E_M1:
|
---|
524 | switch (bp[0]) {
|
---|
525 | case 'g':
|
---|
526 | op->e_mag.whichm = MAG_gk;
|
---|
527 | bp++;
|
---|
528 | break;
|
---|
529 | case 'H':
|
---|
530 | op->e_mag.whichm = MAG_HG;
|
---|
531 | bp++;
|
---|
532 | break;
|
---|
533 | default:
|
---|
534 | /* leave type unchanged if no or unrecognized prefix */
|
---|
535 | break;
|
---|
536 | }
|
---|
537 | op->e_mag.m1 = (float) atod(bp);
|
---|
538 | break;
|
---|
539 | case E_M2:
|
---|
540 | switch (bp[0]) {
|
---|
541 | case 'k':
|
---|
542 | op->e_mag.whichm = MAG_gk;
|
---|
543 | bp++;
|
---|
544 | break;
|
---|
545 | case 'G':
|
---|
546 | op->e_mag.whichm = MAG_HG;
|
---|
547 | bp++;
|
---|
548 | break;
|
---|
549 | default:
|
---|
550 | /* leave type unchanged if no or unrecognized prefix */
|
---|
551 | break;
|
---|
552 | }
|
---|
553 | op->e_mag.m2 = (float) atod(bp);
|
---|
554 | break;
|
---|
555 | case E_SIZE:
|
---|
556 | op->e_size = (float) atod (bp);
|
---|
557 | break;
|
---|
558 |
|
---|
559 | case H_EP:
|
---|
560 | crack_year (bp, pref, &op->h_ep);
|
---|
561 | break;
|
---|
562 | case H_INC:
|
---|
563 | op->h_inc = (float) atod (bp);
|
---|
564 | break;
|
---|
565 | case H_LAN:
|
---|
566 | op->h_Om = (float) atod (bp);
|
---|
567 | break;
|
---|
568 | case H_AOP:
|
---|
569 | op->h_om = (float) atod (bp);
|
---|
570 | break;
|
---|
571 | case H_E:
|
---|
572 | op->h_e = (float) atod (bp);
|
---|
573 | break;
|
---|
574 | case H_QP:
|
---|
575 | op->h_qp = (float) atod (bp);
|
---|
576 | break;
|
---|
577 | case H_EPOCH:
|
---|
578 | crack_year (bp, pref, &op->h_epoch);
|
---|
579 | break;
|
---|
580 | case H_G:
|
---|
581 | op->h_g = (float) atod (bp);
|
---|
582 | break;
|
---|
583 | case H_K:
|
---|
584 | op->h_k = (float) atod (bp);
|
---|
585 | break;
|
---|
586 | case H_SIZE:
|
---|
587 | op->h_size = (float) atod (bp);
|
---|
588 | break;
|
---|
589 |
|
---|
590 | case P_EP:
|
---|
591 | crack_year (bp, pref, &op->p_ep);
|
---|
592 | break;
|
---|
593 | case P_INC:
|
---|
594 | op->p_inc = (float) atod (bp);
|
---|
595 | break;
|
---|
596 | case P_AOP:
|
---|
597 | op->p_om = (float) atod (bp);
|
---|
598 | break;
|
---|
599 | case P_QP:
|
---|
600 | op->p_qp = (float) atod (bp);
|
---|
601 | break;
|
---|
602 | case P_LAN:
|
---|
603 | op->p_Om = (float) atod (bp);
|
---|
604 | break;
|
---|
605 | case P_EPOCH:
|
---|
606 | crack_year (bp, pref, &op->p_epoch);
|
---|
607 | break;
|
---|
608 | case P_G:
|
---|
609 | op->p_g = (float) atod (bp);
|
---|
610 | break;
|
---|
611 | case P_K:
|
---|
612 | op->p_k = (float) atod (bp);
|
---|
613 | break;
|
---|
614 | case P_SIZE:
|
---|
615 | op->p_size = (float) atod (bp);
|
---|
616 | break;
|
---|
617 |
|
---|
618 | case ES_EPOCH:
|
---|
619 | crack_year (bp, pref, &op->es_epoch);
|
---|
620 | break;
|
---|
621 | case ES_INC:
|
---|
622 | op->es_inc = (float) atod (bp);
|
---|
623 | break;
|
---|
624 | case ES_RAAN:
|
---|
625 | op->es_raan = (float) atod (bp);
|
---|
626 | break;
|
---|
627 | case ES_E:
|
---|
628 | op->es_e = (float) atod (bp);
|
---|
629 | break;
|
---|
630 | case ES_AP:
|
---|
631 | op->es_ap = (float) atod (bp);
|
---|
632 | break;
|
---|
633 | case ES_M:
|
---|
634 | op->es_M = (float) atod (bp);
|
---|
635 | break;
|
---|
636 | case ES_N:
|
---|
637 | op->es_n = atod (bp);
|
---|
638 | break;
|
---|
639 | case ES_DECAY:
|
---|
640 | op->es_decay = (float) atod (bp);
|
---|
641 | break;
|
---|
642 | case ES_ORBIT:
|
---|
643 | op->es_orbit = atoi (bp);
|
---|
644 | break;
|
---|
645 | case ES_DRAG:
|
---|
646 | op->es_drag = (float) atod (bp);
|
---|
647 | break;
|
---|
648 |
|
---|
649 | default:
|
---|
650 | printf ("BUG! db_set_field: bad id: %d\n", id);
|
---|
651 | exit (1);
|
---|
652 | }
|
---|
653 |
|
---|
654 | return (0);
|
---|
655 | }
|
---|
656 |
|
---|
657 | /* given a null-terminated string, fill in fields[] with the starting addresses
|
---|
658 | * of each field delimited by delim or '\0'.
|
---|
659 | * N.B. each character matching delim is REPLACED BY '\0' IN PLACE.
|
---|
660 | * N.B. 0-length fields count, so even if *s=='\0' we return 1.
|
---|
661 | * return the number of fields.
|
---|
662 | */
|
---|
663 | int
|
---|
664 | get_fields (s, delim, fields)
|
---|
665 | char *s;
|
---|
666 | int delim;
|
---|
667 | char *fields[];
|
---|
668 | {
|
---|
669 | int n;
|
---|
670 | char c;
|
---|
671 |
|
---|
672 | *fields = s;
|
---|
673 | n = 0;
|
---|
674 | do {
|
---|
675 | c = *s++;
|
---|
676 | if (c == delim || c == '\0') {
|
---|
677 | s[-1] = '\0';
|
---|
678 | *++fields = s;
|
---|
679 | n++;
|
---|
680 | }
|
---|
681 | } while (c);
|
---|
682 |
|
---|
683 | return (n);
|
---|
684 | }
|
---|
685 |
|
---|
686 | /* check name for being a planet.
|
---|
687 | * if so, fill in *op and return 0, else return -1.
|
---|
688 | */
|
---|
689 | int
|
---|
690 | db_chk_planet (name, op)
|
---|
691 | char name[];
|
---|
692 | Obj *op;
|
---|
693 | {
|
---|
694 | char namecpy[256];
|
---|
695 | int i;
|
---|
696 |
|
---|
697 | /* these must match the order in astro.h */
|
---|
698 | static char *planet_names[] = {
|
---|
699 | "Mercury", "Venus", "Mars", "Jupiter", "Saturn",
|
---|
700 | "Uranus", "Neptune", "Pluto", "Sun", "Moon",
|
---|
701 | };
|
---|
702 |
|
---|
703 | /* make a copy to match our case -- strcasecmp() not entirely portable*/
|
---|
704 | strcpy (namecpy, name);
|
---|
705 | if (islower(namecpy[0]))
|
---|
706 | namecpy[0] = toupper(namecpy[0]);
|
---|
707 | for (i = 1; namecpy[i]; i++)
|
---|
708 | if (isupper(namecpy[i]))
|
---|
709 | namecpy[i] = tolower(namecpy[i]);
|
---|
710 |
|
---|
711 | for (i = MERCURY; i <= MOON; i++) {
|
---|
712 | if (strcmp (namecpy, planet_names[i]) == 0) {
|
---|
713 | zero_mem ((void *)op, sizeof(ObjPl));
|
---|
714 | op->o_type = PLANET;
|
---|
715 | (void) strcpy (op->o_name, planet_names[i]);
|
---|
716 | op->pl.pl_code = i;
|
---|
717 | return (0);
|
---|
718 | }
|
---|
719 | }
|
---|
720 |
|
---|
721 | return (-1);
|
---|
722 | }
|
---|
723 |
|
---|
724 | /* return 0 if buf qualifies as a database line worthy of a cracking
|
---|
725 | * attempt, else -1.
|
---|
726 | */
|
---|
727 | static int
|
---|
728 | line_candidate (buf)
|
---|
729 | char *buf;
|
---|
730 | {
|
---|
731 | char c = buf[0];
|
---|
732 |
|
---|
733 | return (c == '#' || c == '!' || isspace(c) ? -1 : 0);
|
---|
734 | }
|
---|
735 |
|
---|
736 | /* given either a decimal year (xxxx[.xxx]) or a calendar (x/x/x)
|
---|
737 | * and a DateFormat preference convert it to an mjd and store it at *p.
|
---|
738 | */
|
---|
739 | static void
|
---|
740 | crack_year (bp, pref, p)
|
---|
741 | char *bp;
|
---|
742 | PrefDateFormat pref;
|
---|
743 | double *p;
|
---|
744 | {
|
---|
745 | int m, y;
|
---|
746 | double d;
|
---|
747 |
|
---|
748 | mjd_cal (*p, &m, &d, &y); /* init with current */
|
---|
749 | f_sscandate (bp, pref, &m, &d, &y);
|
---|
750 | cal_mjd (m, d, y, p);
|
---|
751 | }
|
---|
752 |
|
---|
753 | /* given an *op and a field id, add it to the given text buffer bp.
|
---|
754 | * return the number of characters added to bp.
|
---|
755 | */
|
---|
756 | static int
|
---|
757 | db_get_field (op, id, bp)
|
---|
758 | Obj *op;
|
---|
759 | int id;
|
---|
760 | char *bp;
|
---|
761 | {
|
---|
762 | char *bpsave = bp;
|
---|
763 | double tmp;
|
---|
764 |
|
---|
765 | /* include all the enums and in numeric order to give us the best
|
---|
766 | * possible chance the compiler will implement this as a jump table.
|
---|
767 | */
|
---|
768 | switch (id) {
|
---|
769 | case F_RA:
|
---|
770 | sprintf (bp, ",");
|
---|
771 | bp += strlen(bp);
|
---|
772 | fs_sexa (bp, radhr(op->f_RA), 2, 36000);
|
---|
773 | bp += strlen(bp);
|
---|
774 | break;
|
---|
775 | case F_DEC:
|
---|
776 | sprintf (bp, ",");
|
---|
777 | bp += strlen(bp);
|
---|
778 | fs_sexa (bp, raddeg(op->f_dec), 3, 3600);
|
---|
779 | bp += strlen(bp);
|
---|
780 | break;
|
---|
781 | case F_EPOCH:
|
---|
782 | mjd_year (op->f_epoch, &tmp);
|
---|
783 | sprintf (bp, ",%.6g", tmp); /* %.7g gives 2000.001 */
|
---|
784 | bp += strlen(bp);
|
---|
785 | break;
|
---|
786 | case F_MAG:
|
---|
787 | sprintf (bp, ",%6.2f", get_mag(op));
|
---|
788 | bp += strlen(bp);
|
---|
789 | break;
|
---|
790 | case F_SIZE:
|
---|
791 | sprintf (bp, ",%.7g", op->f_size);
|
---|
792 | bp += strlen(bp);
|
---|
793 | if (op->f_ratio || op->f_pa) {
|
---|
794 | sprintf (bp,"|%g|%g", op->f_size*get_ratio(op),
|
---|
795 | raddeg(get_pa(op)));
|
---|
796 | bp += strlen(bp);
|
---|
797 | }
|
---|
798 | break;
|
---|
799 | case F_CLASS:
|
---|
800 | if (op->f_class) {
|
---|
801 | sprintf (bp, "|%c", op->f_class);
|
---|
802 | bp += strlen(bp);
|
---|
803 | }
|
---|
804 | break;
|
---|
805 | case F_SPECT:
|
---|
806 | if (op->f_spect[0] != '\0') {
|
---|
807 | sprintf (bp, "|%c", op->f_spect[0]);
|
---|
808 | bp += strlen(bp);
|
---|
809 | if (op->f_spect[1] != '\0') {
|
---|
810 | sprintf (bp, "%c", op->f_spect[1]);
|
---|
811 | bp += strlen(bp);
|
---|
812 | }
|
---|
813 | }
|
---|
814 | break;
|
---|
815 |
|
---|
816 | case E_INC:
|
---|
817 | sprintf (bp, ",%.7g", op->e_inc);
|
---|
818 | bp += strlen(bp);
|
---|
819 | break;
|
---|
820 | case E_LAN:
|
---|
821 | sprintf (bp, ",%.7g", op->e_Om);
|
---|
822 | bp += strlen(bp);
|
---|
823 | break;
|
---|
824 | case E_AOP:
|
---|
825 | sprintf (bp, ",%.7g", op->e_om);
|
---|
826 | bp += strlen(bp);
|
---|
827 | break;
|
---|
828 | case E_A:
|
---|
829 | sprintf (bp, ",%.7g", op->e_a);
|
---|
830 | bp += strlen(bp);
|
---|
831 | break;
|
---|
832 | case E_N:
|
---|
833 | /* retired */
|
---|
834 | sprintf (bp, ",");
|
---|
835 | bp += strlen(bp);
|
---|
836 | break;
|
---|
837 | case E_E:
|
---|
838 | sprintf (bp, ",%.7g", op->e_e);
|
---|
839 | bp += strlen(bp);
|
---|
840 | break;
|
---|
841 | case E_M:
|
---|
842 | sprintf (bp, ",%.7g", op->e_M);
|
---|
843 | bp += strlen(bp);
|
---|
844 | break;
|
---|
845 | case E_CEPOCH:
|
---|
846 | sprintf (bp, ",");
|
---|
847 | bp += strlen(bp);
|
---|
848 | fs_date (bp, op->e_cepoch);
|
---|
849 | bp += strlen(bp);
|
---|
850 | break;
|
---|
851 | case E_EPOCH:
|
---|
852 | sprintf (bp, ",");
|
---|
853 | bp += strlen(bp);
|
---|
854 | fs_date (bp, op->e_epoch);
|
---|
855 | bp += strlen(bp);
|
---|
856 | break;
|
---|
857 | case E_M1:
|
---|
858 | if (op->e_mag.whichm == MAG_gk) {
|
---|
859 | sprintf (bp, ",g%.7g", op->e_mag.m1);
|
---|
860 | bp += strlen(bp);
|
---|
861 | } else if (op->e_mag.whichm == MAG_HG) {
|
---|
862 | sprintf (bp, ",H%.7g", op->e_mag.m1);
|
---|
863 | bp += strlen(bp);
|
---|
864 | } else {
|
---|
865 | sprintf (bp, ",%.7g", op->e_mag.m1);
|
---|
866 | bp += strlen(bp);
|
---|
867 | }
|
---|
868 | break;
|
---|
869 | case E_M2:
|
---|
870 | sprintf (bp, ",%.7g", op->e_mag.m2);
|
---|
871 | bp += strlen(bp);
|
---|
872 | break;
|
---|
873 | case E_SIZE:
|
---|
874 | sprintf (bp, ",%.7g", op->e_size);
|
---|
875 | bp += strlen(bp);
|
---|
876 | break;
|
---|
877 |
|
---|
878 | case H_EP:
|
---|
879 | sprintf (bp, ",");
|
---|
880 | bp += strlen(bp);
|
---|
881 | fs_date (bp, op->h_ep);
|
---|
882 | bp += strlen(bp);
|
---|
883 | break;
|
---|
884 | case H_INC:
|
---|
885 | sprintf (bp, ",%.7g", op->h_inc);
|
---|
886 | bp += strlen(bp);
|
---|
887 | break;
|
---|
888 | case H_LAN:
|
---|
889 | sprintf (bp, ",%.7g", op->h_Om);
|
---|
890 | bp += strlen(bp);
|
---|
891 | break;
|
---|
892 | case H_AOP:
|
---|
893 | sprintf (bp, ",%.7g", op->h_om);
|
---|
894 | bp += strlen(bp);
|
---|
895 | break;
|
---|
896 | case H_E:
|
---|
897 | sprintf (bp, ",%.7g", op->h_e);
|
---|
898 | bp += strlen(bp);
|
---|
899 | break;
|
---|
900 | case H_QP:
|
---|
901 | sprintf (bp, ",%.7g", op->h_qp);
|
---|
902 | bp += strlen(bp);
|
---|
903 | break;
|
---|
904 | case H_EPOCH:
|
---|
905 | sprintf (bp, ",");
|
---|
906 | bp += strlen(bp);
|
---|
907 | fs_date (bp, op->h_epoch);
|
---|
908 | bp += strlen(bp);
|
---|
909 | break;
|
---|
910 | case H_G:
|
---|
911 | sprintf (bp, ",%.7g", op->h_g);
|
---|
912 | bp += strlen(bp);
|
---|
913 | break;
|
---|
914 | case H_K:
|
---|
915 | sprintf (bp, ",%.7g", op->h_k);
|
---|
916 | bp += strlen(bp);
|
---|
917 | break;
|
---|
918 | case H_SIZE:
|
---|
919 | sprintf (bp, ",%.7g", op->h_size);
|
---|
920 | bp += strlen(bp);
|
---|
921 | break;
|
---|
922 |
|
---|
923 | case P_EP:
|
---|
924 | sprintf (bp, ",");
|
---|
925 | bp += strlen(bp);
|
---|
926 | fs_date (bp, op->p_ep);
|
---|
927 | bp += strlen(bp);
|
---|
928 | break;
|
---|
929 | case P_INC:
|
---|
930 | sprintf (bp, ",%.7g", op->p_inc);
|
---|
931 | bp += strlen(bp);
|
---|
932 | break;
|
---|
933 | case P_AOP:
|
---|
934 | sprintf (bp, ",%.7g", op->p_om);
|
---|
935 | bp += strlen(bp);
|
---|
936 | break;
|
---|
937 | case P_QP:
|
---|
938 | sprintf (bp, ",%.7g", op->p_qp);
|
---|
939 | bp += strlen(bp);
|
---|
940 | break;
|
---|
941 | case P_LAN:
|
---|
942 | sprintf (bp, ",%.7g", op->p_Om);
|
---|
943 | bp += strlen(bp);
|
---|
944 | break;
|
---|
945 | case P_EPOCH:
|
---|
946 | sprintf (bp, ",");
|
---|
947 | bp += strlen(bp);
|
---|
948 | fs_date (bp, op->p_epoch);
|
---|
949 | bp += strlen(bp);
|
---|
950 | break;
|
---|
951 | case P_G:
|
---|
952 | sprintf (bp, ",%.7g", op->p_g);
|
---|
953 | bp += strlen(bp);
|
---|
954 | break;
|
---|
955 | case P_K:
|
---|
956 | sprintf (bp, ",%.7g", op->p_k);
|
---|
957 | bp += strlen(bp);
|
---|
958 | break;
|
---|
959 | case P_SIZE:
|
---|
960 | sprintf (bp, ",%.7g", op->p_size);
|
---|
961 | bp += strlen(bp);
|
---|
962 | break;
|
---|
963 |
|
---|
964 | case ES_EPOCH:
|
---|
965 | sprintf (bp, ",");
|
---|
966 | bp += strlen(bp);
|
---|
967 | fs_date (bp, op->es_epoch);
|
---|
968 | bp += strlen(bp);
|
---|
969 | break;
|
---|
970 | case ES_INC:
|
---|
971 | sprintf (bp, ",%.7g", op->es_inc);
|
---|
972 | bp += strlen(bp);
|
---|
973 | break;
|
---|
974 | case ES_RAAN:
|
---|
975 | sprintf (bp, ",%.7g", op->es_raan);
|
---|
976 | bp += strlen(bp);
|
---|
977 | break;
|
---|
978 | case ES_E:
|
---|
979 | sprintf (bp, ",%.7g", op->es_e);
|
---|
980 | bp += strlen(bp);
|
---|
981 | break;
|
---|
982 | case ES_AP:
|
---|
983 | sprintf (bp, ",%.7g", op->es_ap);
|
---|
984 | bp += strlen(bp);
|
---|
985 | break;
|
---|
986 | case ES_M:
|
---|
987 | sprintf (bp, ",%.7g", op->es_M);
|
---|
988 | bp += strlen(bp);
|
---|
989 | break;
|
---|
990 | case ES_N:
|
---|
991 | sprintf (bp, ",%.7g", op->es_n);
|
---|
992 | bp += strlen(bp);
|
---|
993 | break;
|
---|
994 | case ES_DECAY:
|
---|
995 | sprintf (bp, ",%.7g", op->es_decay);
|
---|
996 | bp += strlen(bp);
|
---|
997 | break;
|
---|
998 | case ES_ORBIT:
|
---|
999 | sprintf (bp, ",%d", op->es_orbit);
|
---|
1000 | bp += strlen(bp);
|
---|
1001 | break;
|
---|
1002 | case ES_DRAG:
|
---|
1003 | sprintf (bp, ",%.7g", op->es_drag);
|
---|
1004 | bp += strlen(bp);
|
---|
1005 | break;
|
---|
1006 |
|
---|
1007 | default:
|
---|
1008 | printf ("BUG! db_set_field: bad id: %d\n", id);
|
---|
1009 | exit (1);
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | return (bp - bpsave);
|
---|
1013 | }
|
---|
1014 |
|
---|
1015 | /* For RCS Only -- Do Not Edit */
|
---|
1016 | static char *rcsid[2] = {(char *)rcsid, "@(#) $RCSfile: dbfmt.c,v $ $Date: 2001-10-22 12:08:26 $ $Revision: 1.2 $ $Name: not supported by cvs2svn $"};
|
---|