1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2011 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Research 26 * 27 * time conversion support readonly data 28 */ 29 30 #include <ast.h> 31 #include <tm.h> 32 33 /* 34 * default format strings -- must agree with TM_* indices 35 */ 36 37 static char* format[] = 38 { 39 "Jan", "Feb", "Mar", "Apr", 40 "May", "Jun", "Jul", "Aug", 41 "Sep", "Oct", "Nov", "Dec", 42 43 "January", "February", "March", "April", 44 "May", "June", "July", "August", 45 "September", "October", "November", "December", 46 47 "Sun", "Mon", "Tue", "Wed", 48 "Thu", "Fri", "Sat", 49 50 "Sunday", "Monday", "Tuesday", "Wednesday", 51 "Thursday", "Friday", "Saturday", 52 53 "%H:%M:%S", "%m/%d/%y", "%a %b %e %T %Z %Y", 54 55 "AM", "PM", 56 57 "GMT", "UTC", "UCT", "CUT", 58 59 "DST", "", "", "", 60 61 "s", "es", "", "", 62 63 "second", "minute", "hour", "day", 64 "week", "month", "year", 65 66 "midnight", "morning", "noon", "evening", 67 68 "yesterday", "today", "tomorrow", 69 70 "last", "ago", "past", 71 "this", "now", "current", 72 "in", "next", "hence", 73 "exactly", "", "", 74 75 "at", "on", "", "", 76 77 "st", "nd", "rd", "th", "th", 78 "th", "th", "th", "th", "th", 79 80 "", "", "", "", "", 81 "", "", "", "", "", 82 83 "%a %b %e %T %Y", 84 "%a %b %e %T %Z %Y", 85 "%a %b %e %T %z %Z %Y", 86 "%b %e %H:%M", 87 "%b %e %Y", 88 "%I:%M:%S %p", 89 90 "", "", "", "", "", 91 92 "first", "", "third", "fourth", "fifth", 93 "sixth", "seventh", "eighth", "ninth", "tenth", 94 95 "final", "ending", "nth", 96 97 "work", "working", "workday", 98 }; 99 100 /* 101 * format[] lex type classes 102 */ 103 104 static unsigned char lex[] = 105 { 106 TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV, 107 TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV, 108 TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV,TM_MONTH_ABBREV, 109 110 TM_MONTH, TM_MONTH, TM_MONTH, TM_MONTH, 111 TM_MONTH, TM_MONTH, TM_MONTH, TM_MONTH, 112 TM_MONTH, TM_MONTH, TM_MONTH, TM_MONTH, 113 114 TM_DAY_ABBREV, TM_DAY_ABBREV, TM_DAY_ABBREV, TM_DAY_ABBREV, 115 TM_DAY_ABBREV, TM_DAY_ABBREV, TM_DAY_ABBREV, 116 117 TM_DAY, TM_DAY, TM_DAY, TM_DAY, 118 TM_DAY, TM_DAY, TM_DAY, 119 120 0, 0, 0, 121 122 TM_MERIDIAN, TM_MERIDIAN, 123 124 TM_UT, TM_UT, TM_UT, TM_UT, 125 TM_DT, TM_DT, TM_DT, TM_DT, 126 127 TM_SUFFIXES, TM_SUFFIXES, TM_SUFFIXES, TM_SUFFIXES, 128 129 TM_PARTS, TM_PARTS, TM_PARTS, TM_PARTS, 130 TM_PARTS, TM_PARTS, TM_PARTS, 131 132 TM_HOURS, TM_HOURS, TM_HOURS, TM_HOURS, 133 134 TM_DAYS, TM_DAYS, TM_DAYS, 135 136 TM_LAST, TM_LAST, TM_LAST, 137 TM_THIS, TM_THIS, TM_THIS, 138 TM_NEXT, TM_NEXT, TM_NEXT, 139 TM_EXACT, TM_EXACT, TM_EXACT, 140 141 TM_NOISE, TM_NOISE, TM_NOISE, TM_NOISE, 142 143 TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, 144 TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, TM_ORDINAL, 145 146 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0, 148 149 0, 0, 0, 150 0, 0, 0, 151 152 0, 0, 0, 0, 0, 153 154 TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, 155 TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, TM_ORDINALS, 156 157 TM_FINAL, TM_FINAL, TM_FINAL, 158 159 TM_WORK, TM_WORK, TM_WORK, 160 }; 161 162 /* 163 * output format digits 164 */ 165 166 static char digit[] = "0123456789"; 167 168 /* 169 * number of days in month i 170 */ 171 172 static short days[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; 173 174 /* 175 * sum of days in months before month i 176 */ 177 178 static short sum[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }; 179 180 /* 181 * leap second time_t and accumulated adjustments 182 * (reverse order -- biased for recent dates) 183 * 184 * tl.time is the seconds since the epoch for the leap event 185 * 186 * adding: the first additional second 187 * subtracting: the first dissappearing second 188 */ 189 190 static Tm_leap_t leap[] = 191 { 192 1230768023, 24, /* 2008-12-31+23:59:60-0000 */ 193 1136073622, 23, /* 2005-12-31+23:59:60-0000 */ 194 915148821, 22, /* 1998-12-31+23:59:60-0000 */ 195 867715220, 21, /* 1997-06-30+23:59:60-0000 */ 196 820454419, 20, /* 1995-12-31+23:59:60-0000 */ 197 773020818, 19, /* 1994-06-30+23:59:60-0000 */ 198 741484817, 18, /* 1993-06-30+23:59:60-0000 */ 199 709948816, 17, /* 1992-06-30+23:59:60-0000 */ 200 662688015, 16, /* 1990-12-31+23:59:60-0000 */ 201 631152014, 15, /* 1989-12-31+23:59:60-0000 */ 202 567993613, 14, /* 1987-12-31+23:59:60-0000 */ 203 489024012, 13, /* 1985-06-30+23:59:60-0000 */ 204 425865611, 12, /* 1983-06-30+23:59:60-0000 */ 205 394329610, 11, /* 1982-06-30+23:59:60-0000 */ 206 362793609, 10, /* 1981-06-30+23:59:60-0000 */ 207 315532808, 9, /* 1979-12-31+23:59:60-0000 */ 208 283996807, 8, /* 1978-12-31+23:59:60-0000 */ 209 252460806, 7, /* 1977-12-31+23:59:60-0000 */ 210 220924805, 6, /* 1976-12-31+23:59:60-0000 */ 211 189302404, 5, /* 1975-12-31+23:59:60-0000 */ 212 157766403, 4, /* 1974-12-31+23:59:60-0000 */ 213 126230402, 3, /* 1973-12-31+23:59:60-0000 */ 214 94694401, 2, /* 1972-12-31+23:59:60-0000 */ 215 78796800, 1, /* 1972-06-30+23:59:60-0000 */ 216 0, 0, /* can reference (tl+1) */ 217 0, 0 218 }; 219 220 /* 221 * time zones 222 * 223 * the UTC entries must be first 224 * 225 * zones with the same type are contiguous with all but the 226 * first entry for the type having a null type 227 * 228 * tz.standard is the sentinel 229 */ 230 231 static Tm_zone_t zone[] = 232 { 233 0, "GMT", 0, ( 0 * 60), 0, /* UTC */ 234 0, "UCT", 0, ( 0 * 60), 0, /* UTC */ 235 0, "UTC", 0, ( 0 * 60), 0, /* UTC */ 236 0, "CUT", 0, ( 0 * 60), 0, /* UTC */ 237 0, "Z", 0, ( 0 * 60), 0, /* UTC */ 238 "USA", "HST", 0, (10 * 60), 0, /* Hawaii */ 239 0, "YST", "YDT", ( 9 * 60), TM_DST, /* Yukon */ 240 0, "PST", "PDT", ( 8 * 60), TM_DST, /* Pacific */ 241 0, "PST", "PPET", ( 8 * 60), TM_DST, /* Pacific pres elect */ 242 0, "MST", "MDT", ( 7 * 60), TM_DST, /* Mountain */ 243 0, "CST", "CDT", ( 6 * 60), TM_DST, /* Central */ 244 0, "EST", "EDT", ( 5 * 60), TM_DST, /* Eastern */ 245 "CAN", "AST", "ADT", ( 4 * 60), TM_DST, /* Atlantic */ 246 0, "NST", 0, ( 3 * 60 + 30), 0, /* Newfoundland */ 247 "GBR", "", "BST", ( 0 * 60), TM_DST, /* British Summer */ 248 "EUR", "WET", "WEST", ( 0 * 60), TM_DST, /* Western Eurpoean */ 249 0, "CET", "CEST", -( 1 * 60), TM_DST, /* Central European */ 250 0, "MET", "MEST", -( 1 * 60), TM_DST, /* Middle European */ 251 0, "EET", "EEST", -( 2 * 60), TM_DST, /* Eastern Eurpoean */ 252 "ISR", "IST", "IDT", -( 3 * 60), TM_DST, /* Israel */ 253 "IND", "IST", 0, -( 5 * 60 + 30 ), 0, /* India */ 254 "CHN", "HKT", 0, -( 8 * 60), 0, /* Hong Kong */ 255 "KOR", "KST", "KDT", -( 8 * 60), TM_DST, /* Korea */ 256 "SNG", "SST", 0, -( 8 * 60), 0, /* Singapore */ 257 "JPN", "JST", 0, -( 9 * 60), 0, /* Japan */ 258 "AUS", "AWST", 0, -( 8 * 60), 0, /* Australia Western */ 259 0, "WST", 0, -( 8 * 60), 0, /* Australia Western */ 260 0, "ACST", 0, -( 9 * 60 + 30),TM_DST, /* Australia Central */ 261 0, "CST", 0, -( 9 * 60 + 30),TM_DST, /* Australia Central */ 262 0, "AEST", 0, -(10 * 60), TM_DST, /* Australia Eastern */ 263 0, "EST", 0, -(10 * 60), TM_DST, /* Australia Eastern */ 264 "NZL", "NZST", "NZDT", -(12 * 60), TM_DST, /* New Zealand */ 265 0, 0, 0, 0, 0 266 }; 267 268 /* 269 * 2007-03-19 move tm_data from _tm_data_ to (*_tm_datap_) 270 * to allow future Tm_data_t growth 271 * by 2009 _tm_data_ can be static 272 */ 273 274 #if _BLD_ast && defined(__EXPORT__) 275 #define extern extern __EXPORT__ 276 #endif 277 278 extern Tm_data_t _tm_data_; 279 280 #undef extern 281 282 Tm_data_t _tm_data_ = { format, lex, digit, days, sum, leap, zone }; 283 284 __EXTERN__(Tm_data_t, _tm_data_); 285 286 __EXTERN__(Tm_data_t*, _tm_datap_); 287 288 Tm_data_t* _tm_datap_ = &_tm_data_; 289