/* glpmpl05.c */ /*********************************************************************** * This code is part of GLPK (GNU Linear Programming Kit). * * Authors: Andrew Makhorin * Heinrich Schuchardt * * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, * 2009, 2010, 2011, 2013 Andrew Makhorin, Department for Applied * Informatics, Moscow Aviation Institute, Moscow, Russia. All rights * reserved. E-mail: . * * GLPK is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GLPK is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public * License for more details. * * You should have received a copy of the GNU General Public License * along with GLPK. If not, see . ***********************************************************************/ #include "glpmpl.h" #if 1 /* 11/VI-2013 */ #include "jd.h" #endif double fn_gmtime(MPL *mpl) { /* obtain the current calendar time (UTC) */ time_t timer; struct tm *tm; int j; time(&timer); if (timer == (time_t)(-1)) err: error(mpl, "gmtime(); unable to obtain current calendar time"); tm = gmtime(&timer); if (tm == NULL) goto err; j = jday(tm->tm_mday, tm->tm_mon + 1, 1900 + tm->tm_year); if (j < 0) goto err; return (((double)(j - jday(1, 1, 1970)) * 24.0 + (double)tm->tm_hour) * 60.0 + (double)tm->tm_min) * 60.0 + (double)tm->tm_sec; } static char *week[] = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" }; static char *moon[] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }; static void error1(MPL *mpl, const char *str, const char *s, const char *fmt, const char *f, const char *msg) { xprintf("Input string passed to str2time:\n"); xprintf("%s\n", str); xprintf("%*s\n", (s - str) + 1, "^"); xprintf("Format string passed to str2time:\n"); xprintf("%s\n", fmt); xprintf("%*s\n", (f - fmt) + 1, "^"); error(mpl, "%s", msg); /* no return */ } double fn_str2time(MPL *mpl, const char *str, const char *fmt) { /* convert character string to the calendar time */ int j, year, month, day, hh, mm, ss, zone; const char *s, *f; year = month = day = hh = mm = ss = -1, zone = INT_MAX; s = str; for (f = fmt; *f != '\0'; f++) { if (*f == '%') { f++; if (*f == 'b' || *f == 'h') { /* the abbreviated month name */ int k; char *name; if (month >= 0) error1(mpl, str, s, fmt, f, "month multiply specified" ); while (*s == ' ') s++; for (month = 1; month <= 12; month++) { name = moon[month-1]; for (k = 0; k <= 2; k++) { if (toupper((unsigned char)s[k]) != toupper((unsigned char)name[k])) goto next; } s += 3; for (k = 3; name[k] != '\0'; k++) { if (toupper((unsigned char)*s) != toupper((unsigned char)name[k])) break; s++; } break; next: ; } if (month > 12) error1(mpl, str, s, fmt, f, "abbreviated month name m" "issing or invalid"); } else if (*f == 'd') { /* the day of the month as a decimal number (01..31) */ if (day >= 0) error1(mpl, str, s, fmt, f, "day multiply specified"); while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "day missing or invalid"); day = (*s++) - '0'; if ('0' <= *s && *s <= '9') day = 10 * day + ((*s++) - '0'); if (!(1 <= day && day <= 31)) error1(mpl, str, s, fmt, f, "day out of range"); } else if (*f == 'H') { /* the hour as a decimal number, using a 24-hour clock (00..23) */ if (hh >= 0) error1(mpl, str, s, fmt, f, "hour multiply specified") ; while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "hour missing or invalid") ; hh = (*s++) - '0'; if ('0' <= *s && *s <= '9') hh = 10 * hh + ((*s++) - '0'); if (!(0 <= hh && hh <= 23)) error1(mpl, str, s, fmt, f, "hour out of range"); } else if (*f == 'm') { /* the month as a decimal number (01..12) */ if (month >= 0) error1(mpl, str, s, fmt, f, "month multiply specified" ); while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "month missing or invalid" ); month = (*s++) - '0'; if ('0' <= *s && *s <= '9') month = 10 * month + ((*s++) - '0'); if (!(1 <= month && month <= 12)) error1(mpl, str, s, fmt, f, "month out of range"); } else if (*f == 'M') { /* the minute as a decimal number (00..59) */ if (mm >= 0) error1(mpl, str, s, fmt, f, "minute multiply specifie" "d"); while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "minute missing or invali" "d"); mm = (*s++) - '0'; if ('0' <= *s && *s <= '9') mm = 10 * mm + ((*s++) - '0'); if (!(0 <= mm && mm <= 59)) error1(mpl, str, s, fmt, f, "minute out of range"); } else if (*f == 'S') { /* the second as a decimal number (00..60) */ if (ss >= 0) error1(mpl, str, s, fmt, f, "second multiply specifie" "d"); while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "second missing or invali" "d"); ss = (*s++) - '0'; if ('0' <= *s && *s <= '9') ss = 10 * ss + ((*s++) - '0'); if (!(0 <= ss && ss <= 60)) error1(mpl, str, s, fmt, f, "second out of range"); } else if (*f == 'y') { /* the year without a century as a decimal number (00..99); the values 00 to 68 mean the years 2000 to 2068 while the values 69 to 99 mean the years 1969 to 1999 */ if (year >= 0) error1(mpl, str, s, fmt, f, "year multiply specified") ; while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "year missing or invalid") ; year = (*s++) - '0'; if ('0' <= *s && *s <= '9') year = 10 * year + ((*s++) - '0'); year += (year >= 69 ? 1900 : 2000); } else if (*f == 'Y') { /* the year as a decimal number, using the Gregorian calendar */ if (year >= 0) error1(mpl, str, s, fmt, f, "year multiply specified") ; while (*s == ' ') s++; if (!('0' <= *s && *s <= '9')) error1(mpl, str, s, fmt, f, "year missing or invalid") ; year = 0; for (j = 1; j <= 4; j++) { if (!('0' <= *s && *s <= '9')) break; year = 10 * year + ((*s++) - '0'); } if (!(1 <= year && year <= 4000)) error1(mpl, str, s, fmt, f, "year out of range"); } else if (*f == 'z') { /* time zone offset in the form zhhmm */ int z, hh, mm; if (zone != INT_MAX) error1(mpl, str, s, fmt, f, "time zone offset multipl" "y specified"); while (*s == ' ') s++; if (*s == 'Z') { z = hh = mm = 0, s++; goto skip; } if (*s == '+') z = +1, s++; else if (*s == '-') z = -1, s++; else error1(mpl, str, s, fmt, f, "time zone offset sign mi" "ssing"); hh = 0; for (j = 1; j <= 2; j++) { if (!('0' <= *s && *s <= '9')) err1: error1(mpl, str, s, fmt, f, "time zone offset valu" "e incomplete or invalid"); hh = 10 * hh + ((*s++) - '0'); } if (hh > 23) err2: error1(mpl, str, s, fmt, f, "time zone offset value o" "ut of range"); if (*s == ':') { s++; if (!('0' <= *s && *s <= '9')) goto err1; } mm = 0; if (!('0' <= *s && *s <= '9')) goto skip; for (j = 1; j <= 2; j++) { if (!('0' <= *s && *s <= '9')) goto err1; mm = 10 * mm + ((*s++) - '0'); } if (mm > 59) goto err2; skip: zone = z * (60 * hh + mm); } else if (*f == '%') { /* literal % character */ goto test; } else error1(mpl, str, s, fmt, f, "invalid conversion specifie" "r"); } else if (*f == ' ') ; else test: { /* check a matching character in the input string */ if (*s != *f) error1(mpl, str, s, fmt, f, "character mismatch"); s++; } } if (year < 0) year = 1970; if (month < 0) month = 1; if (day < 0) day = 1; if (hh < 0) hh = 0; if (mm < 0) mm = 0; if (ss < 0) ss = 0; if (zone == INT_MAX) zone = 0; j = jday(day, month, year); xassert(j >= 0); return (((double)(j - jday(1, 1, 1970)) * 24.0 + (double)hh) * 60.0 + (double)mm) * 60.0 + (double)ss - 60.0 * (double)zone; } static void error2(MPL *mpl, const char *fmt, const char *f, const char *msg) { xprintf("Format string passed to time2str:\n"); xprintf("%s\n", fmt); xprintf("%*s\n", (f - fmt) + 1, "^"); error(mpl, "%s", msg); /* no return */ } static int weekday(int j) { /* determine weekday number (1 = Mon, ..., 7 = Sun) */ return (j + jday(1, 1, 1970)) % 7 + 1; } static int firstday(int year) { /* determine the first day of the first week for a specified year according to ISO 8601 */ int j; /* if 1 January is Monday, Tuesday, Wednesday or Thursday, it is in week 01; if 1 January is Friday, Saturday or Sunday, it is in week 52 or 53 of the previous year */ j = jday(1, 1, year) - jday(1, 1, 1970); switch (weekday(j)) { case 1: /* 1 Jan is Mon */ j += 0; break; case 2: /* 1 Jan is Tue */ j -= 1; break; case 3: /* 1 Jan is Wed */ j -= 2; break; case 4: /* 1 Jan is Thu */ j -= 3; break; case 5: /* 1 Jan is Fri */ j += 3; break; case 6: /* 1 Jan is Sat */ j += 2; break; case 7: /* 1 Jan is Sun */ j += 1; break; default: xassert(j != j); } /* the first day of the week must be Monday */ xassert(weekday(j) == 1); return j; } void fn_time2str(MPL *mpl, char *str, double t, const char *fmt) { /* convert the calendar time to character string */ int j, year, month, day, hh, mm, ss, len; double temp; const char *f; char buf[MAX_LENGTH+1]; if (!(-62135596800.0 <= t && t <= 64092211199.0)) error(mpl, "time2str(%.*g,...); argument out of range", DBL_DIG, t); t = floor(t + 0.5); temp = fabs(t) / 86400.0; j = (int)floor(temp); if (t < 0.0) { if (temp == floor(temp)) j = - j; else j = - (j + 1); } xassert(jdate(j + jday(1, 1, 1970), &day, &month, &year) == 0); ss = (int)(t - 86400.0 * (double)j); xassert(0 <= ss && ss < 86400); mm = ss / 60, ss %= 60; hh = mm / 60, mm %= 60; len = 0; for (f = fmt; *f != '\0'; f++) { if (*f == '%') { f++; if (*f == 'a') { /* the abbreviated weekday name */ memcpy(buf, week[weekday(j)-1], 3), buf[3] = '\0'; } else if (*f == 'A') { /* the full weekday name */ strcpy(buf, week[weekday(j)-1]); } else if (*f == 'b' || *f == 'h') { /* the abbreviated month name */ memcpy(buf, moon[month-1], 3), buf[3] = '\0'; } else if (*f == 'B') { /* the full month name */ strcpy(buf, moon[month-1]); } else if (*f == 'C') { /* the century of the year */ sprintf(buf, "%02d", year / 100); } else if (*f == 'd') { /* the day of the month as a decimal number (01..31) */ sprintf(buf, "%02d", day); } else if (*f == 'D') { /* the date using the format %m/%d/%y */ sprintf(buf, "%02d/%02d/%02d", month, day, year % 100); } else if (*f == 'e') { /* the day of the month like with %d, but padded with blank (1..31) */ sprintf(buf, "%2d", day); } else if (*f == 'F') { /* the date using the format %Y-%m-%d */ sprintf(buf, "%04d-%02d-%02d", year, month, day); } else if (*f == 'g') { /* the year corresponding to the ISO week number, but without the century (range 00 through 99); this has the same format and value as %y, except that if the ISO week number (see %V) belongs to the previous or next year, that year is used instead */ int iso; if (j < firstday(year)) iso = year - 1; else if (j < firstday(year + 1)) iso = year; else iso = year + 1; sprintf(buf, "%02d", iso % 100); } else if (*f == 'G') { /* the year corresponding to the ISO week number; this has the same format and value as %Y, excepth that if the ISO week number (see %V) belongs to the previous or next year, that year is used instead */ int iso; if (j < firstday(year)) iso = year - 1; else if (j < firstday(year + 1)) iso = year; else iso = year + 1; sprintf(buf, "%04d", iso); } else if (*f == 'H') { /* the hour as a decimal number, using a 24-hour clock (00..23) */ sprintf(buf, "%02d", hh); } else if (*f == 'I') { /* the hour as a decimal number, using a 12-hour clock (01..12) */ sprintf(buf, "%02d", hh == 0 ? 12 : hh <= 12 ? hh : hh - 12); } else if (*f == 'j') { /* the day of the year as a decimal number (001..366) */ sprintf(buf, "%03d", jday(day, month, year) - jday(1, 1, year) + 1); } else if (*f == 'k') { /* the hour as a decimal number, using a 24-hour clock like %H, but padded with blank (0..23) */ sprintf(buf, "%2d", hh); } else if (*f == 'l') { /* the hour as a decimal number, using a 12-hour clock like %I, but padded with blank (1..12) */ sprintf(buf, "%2d", hh == 0 ? 12 : hh <= 12 ? hh : hh - 12); } else if (*f == 'm') { /* the month as a decimal number (01..12) */ sprintf(buf, "%02d", month); } else if (*f == 'M') { /* the minute as a decimal number (00..59) */ sprintf(buf, "%02d", mm); } else if (*f == 'p') { /* either AM or PM, according to the given time value; noon is treated as PM and midnight as AM */ strcpy(buf, hh <= 11 ? "AM" : "PM"); } else if (*f == 'P') { /* either am or pm, according to the given time value; noon is treated as pm and midnight as am */ strcpy(buf, hh <= 11 ? "am" : "pm"); } else if (*f == 'r') { /* the calendar time using the format %I:%M:%S %p */ sprintf(buf, "%02d:%02d:%02d %s", hh == 0 ? 12 : hh <= 12 ? hh : hh - 12, mm, ss, hh <= 11 ? "AM" : "PM"); } else if (*f == 'R') { /* the hour and minute using the format %H:%M */ sprintf(buf, "%02d:%02d", hh, mm); } else if (*f == 'S') { /* the second as a decimal number (00..59) */ sprintf(buf, "%02d", ss); } else if (*f == 'T') { /* the time of day using the format %H:%M:%S */ sprintf(buf, "%02d:%02d:%02d", hh, mm, ss); } else if (*f == 'u') { /* the day of the week as a decimal number (1..7), Monday being 1 */ sprintf(buf, "%d", weekday(j)); } else if (*f == 'U') { /* the week number of the current year as a decimal number (range 00 through 53), starting with the first Sunday as the first day of the first week; days preceding the first Sunday in the year are considered to be in week 00 */ #if 1 /* 09/I-2009 */ #undef sun /* causes compilation error in SunOS */ #endif int sun; /* sun = the first Sunday of the year */ sun = jday(1, 1, year) - jday(1, 1, 1970); sun += (7 - weekday(sun)); sprintf(buf, "%02d", (j + 7 - sun) / 7); } else if (*f == 'V') { /* the ISO week number as a decimal number (range 01 through 53); ISO weeks start with Monday and end with Sunday; week 01 of a year is the first week which has the majority of its days in that year; week 01 of a year can contain days from the previous year; the week before week 01 of a year is the last week (52 or 53) of the previous year even if it contains days from the new year */ int iso; if (j < firstday(year)) iso = j - firstday(year - 1); else if (j < firstday(year + 1)) iso = j - firstday(year); else iso = j - firstday(year + 1); sprintf(buf, "%02d", iso / 7 + 1); } else if (*f == 'w') { /* the day of the week as a decimal number (0..6), Sunday being 0 */ sprintf(buf, "%d", weekday(j) % 7); } else if (*f == 'W') { /* the week number of the current year as a decimal number (range 00 through 53), starting with the first Monday as the first day of the first week; days preceding the first Monday in the year are considered to be in week 00 */ int mon; /* mon = the first Monday of the year */ mon = jday(1, 1, year) - jday(1, 1, 1970); mon += (8 - weekday(mon)) % 7; sprintf(buf, "%02d", (j + 7 - mon) / 7); } else if (*f == 'y') { /* the year without a century as a decimal number (00..99) */ sprintf(buf, "%02d", year % 100); } else if (*f == 'Y') { /* the year as a decimal number, using the Gregorian calendar */ sprintf(buf, "%04d", year); } else if (*f == '%') { /* a literal % character */ buf[0] = '%', buf[1] = '\0'; } else error2(mpl, fmt, f, "invalid conversion specifier"); } else buf[0] = *f, buf[1] = '\0'; if (len + strlen(buf) > MAX_LENGTH) error(mpl, "time2str; output string length exceeds %d chara" "cters", MAX_LENGTH); memcpy(str+len, buf, strlen(buf)); len += strlen(buf); } str[len] = '\0'; return; } /* eof */