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-rw-r--r--datetime.cc363
1 files changed, 0 insertions, 363 deletions
diff --git a/datetime.cc b/datetime.cc
deleted file mode 100644
index 040c3046..00000000
--- a/datetime.cc
+++ /dev/null
@@ -1,363 +0,0 @@
-#if defined(__GNUG__) && __GNUG__ < 3
-#define _XOPEN_SOURCE
-#endif
-
-#include "debug.h"
-#include "datetime.h"
-
-#include <ctime>
-#include <cctype>
-
-date_t date_t::now(std::time(NULL));
-int date_t::current_year = date_t::now.year();
-std::string date_t::input_format;
-std::string date_t::output_format = "%Y/%m/%d";
-
-const char * date_t::formats[] = {
- "%Y/%m/%d",
- "%m/%d",
- "%Y.%m.%d",
- "%m.%d",
- "%Y-%m-%d",
- "%m-%d",
- "%a",
- "%A",
- "%b",
- "%B",
- "%Y",
- NULL
-};
-
-datetime_t datetime_t::now(std::time(NULL));
-
-namespace {
- static std::time_t base = -1;
- static int base_year = -1;
-
- static const int month_days[12] = {
- 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
- };
-
- bool parse_date_mask(const char * date_str, struct std::tm * result);
- bool parse_date(const char * date_str, std::time_t * result,
- const int year = -1);
- bool quick_parse_date(const char * date_str, std::time_t * result);
-}
-
-date_t::date_t(const std::string& _when)
-{
- if (! quick_parse_date(_when.c_str(), &when))
- throw new date_error
- (std::string("Invalid date string: ") + _when);
-}
-
-datetime_t::datetime_t(const std::string& _when)
-{
- if (const char * p = std::strchr(_when.c_str(), ' ')) {
- date_t date(std::string(_when, 0, p - _when.c_str()));
-
- struct std::tm moment = *std::localtime(&date.when);
- if (! strptime(++p, "%H:%M:%S", &moment))
- throw new datetime_error
- (std::string("Invalid date/time string: ") + _when);
-
- when = std::mktime(&moment);
- } else {
- when = date_t(_when).when;
- }
-}
-
-datetime_t interval_t::first(const datetime_t& moment) const
-{
- datetime_t quant(begin);
-
- if (moment && moment > quant) {
- // Find an efficient starting point for the upcoming while loop.
- // We want a date early enough that the range will be correct, but
- // late enough that we don't spend hundreds of thousands of loops
- // skipping through time.
-
- struct std::tm * desc = std::localtime(&moment.when);
-
- if (years)
- desc->tm_mon = 0;
- desc->tm_mday = 1;
-
- desc->tm_hour = 0;
- desc->tm_min = 0;
- desc->tm_sec = 0;
- desc->tm_isdst = -1;
-
- quant = std::mktime(desc);
-
- datetime_t temp;
- while (moment >= (temp = increment(quant))) {
- if (quant == temp)
- break;
- quant = temp;
- }
- }
-
- return quant;
-}
-
-datetime_t interval_t::increment(const datetime_t& moment) const
-{
- struct std::tm * desc = std::localtime(&moment.when);
-
- if (years)
- desc->tm_year += years;
- if (months)
- desc->tm_mon += months;
- if (days)
- desc->tm_mday += days;
-
- desc->tm_hour += hours;
- desc->tm_min += minutes;
- desc->tm_sec += seconds;
-
- desc->tm_isdst = -1;
-
- return std::mktime(desc);
-}
-
-namespace {
- void parse_inclusion_specifier(const std::string& word,
- datetime_t * begin, datetime_t * end)
- {
- struct std::tm when;
-
- if (! parse_date_mask(word.c_str(), &when))
- throw new datetime_error(std::string("Could not parse date mask: ") + word);
-
- when.tm_hour = 0;
- when.tm_min = 0;
- when.tm_sec = 0;
- when.tm_isdst = -1;
-
- bool saw_year = true;
- bool saw_mon = true;
- bool saw_day = true;
-
- if (when.tm_year == -1) {
- when.tm_year = date_t::current_year;
- saw_year = false;
- }
- if (when.tm_mon == -1) {
- when.tm_mon = 0;
- saw_mon = false;
- } else {
- saw_year = false; // don't increment by year if month used
- }
- if (when.tm_mday == -1) {
- when.tm_mday = 1;
- saw_day = false;
- } else {
- saw_mon = false; // don't increment by month if day used
- saw_year = false; // don't increment by year if day used
- }
-
- if (begin) {
- *begin = std::mktime(&when);
- if (end)
- *end = interval_t(saw_day ? 86400 : 0, saw_mon ? 1 : 0,
- saw_year ? 1 : 0).increment(*begin);
- }
- else if (end) {
- *end = std::mktime(&when);
- }
- }
-
- inline void read_lower_word(std::istream& in, std::string& word) {
- in >> word;
- for (int i = 0, l = word.length(); i < l; i++)
- word[i] = std::tolower(word[i]);
- }
-
- void parse_date_words(std::istream& in, std::string& word,
- datetime_t * begin, datetime_t * end)
- {
- std::string type;
-
- bool mon_spec = false;
- char buf[32];
-
- if (word == "this" || word == "last" || word == "next") {
- type = word;
- if (! in.eof())
- read_lower_word(in, word);
- else
- word = "month";
- } else {
- type = "this";
- }
-
- if (word == "month") {
- std::strftime(buf, 31, "%B", datetime_t::now.localtime());
- word = buf;
- mon_spec = true;
- }
- else if (word == "year") {
- std::strftime(buf, 31, "%Y", datetime_t::now.localtime());
- word = buf;
- }
-
- parse_inclusion_specifier(word, begin, end);
-
- if (type == "last") {
- if (mon_spec) {
- if (begin)
- *begin = interval_t(0, -1, 0).increment(*begin);
- if (end)
- *end = interval_t(0, -1, 0).increment(*end);
- } else {
- if (begin)
- *begin = interval_t(0, 0, -1).increment(*begin);
- if (end)
- *end = interval_t(0, 0, -1).increment(*end);
- }
- }
- else if (type == "next") {
- if (mon_spec) {
- if (begin)
- *begin = interval_t(0, 1, 0).increment(*begin);
- if (end)
- *end = interval_t(0, 1, 0).increment(*end);
- } else {
- if (begin)
- *begin = interval_t(0, 0, 1).increment(*begin);
- if (end)
- *end = interval_t(0, 0, 1).increment(*end);
- }
- }
- }
-}
-
-void interval_t::parse(std::istream& in)
-{
- std::string word;
-
- while (! in.eof()) {
- read_lower_word(in, word);
- if (word == "every") {
- read_lower_word(in, word);
- if (std::isdigit(word[0])) {
- int quantity = std::atol(word.c_str());
- read_lower_word(in, word);
- if (word == "days")
- days = quantity;
- else if (word == "weeks")
- days = 7 * quantity;
- else if (word == "months")
- months = quantity;
- else if (word == "quarters")
- months = 3 * quantity;
- else if (word == "years")
- years = quantity;
- else if (word == "hours")
- hours = quantity;
- else if (word == "minutes")
- minutes = quantity;
- else if (word == "seconds")
- seconds = quantity;
- }
- else if (word == "day")
- days = 1;
- else if (word == "week")
- days = 7;
- else if (word == "month")
- months = 1;
- else if (word == "quarter")
- months = 3;
- else if (word == "year")
- years = 1;
- else if (word == "hour")
- hours = 1;
- else if (word == "minute")
- minutes = 1;
- else if (word == "second")
- seconds = 1;
- }
- else if (word == "daily")
- days = 1;
- else if (word == "weekly")
- days = 7;
- else if (word == "biweekly")
- days = 14;
- else if (word == "monthly")
- months = 1;
- else if (word == "bimonthly")
- months = 2;
- else if (word == "quarterly")
- months = 3;
- else if (word == "yearly")
- years = 1;
- else if (word == "hourly")
- hours = 1;
- else if (word == "this" || word == "last" || word == "next") {
- parse_date_words(in, word, &begin, &end);
- }
- else if (word == "in") {
- read_lower_word(in, word);
- parse_date_words(in, word, &begin, &end);
- }
- else if (word == "from" || word == "since") {
- read_lower_word(in, word);
- parse_date_words(in, word, &begin, NULL);
- }
- else if (word == "to" || word == "until") {
- read_lower_word(in, word);
- parse_date_words(in, word, NULL, &end);
- }
- else {
- parse_inclusion_specifier(word, &begin, &end);
- }
- }
-}
-
-namespace {
- bool parse_date_mask(const char * date_str, struct std::tm * result)
- {
- if (! date_t::input_format.empty()) {
- std::memset(result, INT_MAX, sizeof(struct std::tm));
- if (strptime(date_str, date_t::input_format.c_str(), result))
- return true;
- }
- for (const char ** f = date_t::formats; *f; f++) {
- std::memset(result, INT_MAX, sizeof(struct std::tm));
- if (strptime(date_str, *f, result))
- return true;
- }
- return false;
- }
-
- bool parse_date(const char * date_str, std::time_t * result, const int year)
- {
- struct std::tm when;
-
- if (! parse_date_mask(date_str, &when))
- return false;
-
- when.tm_hour = 0;
- when.tm_min = 0;
- when.tm_sec = 0;
-
- if (when.tm_year == -1)
- when.tm_year = ((year == -1) ? date_t::current_year : (year - 1900));
-
- if (when.tm_mon == -1)
- when.tm_mon = 0;
-
- if (when.tm_mday == -1)
- when.tm_mday = 1;
-
- *result = std::mktime(&when);
-
- return true;
- }
-
- bool quick_parse_date(const char * date_str, std::time_t * result)
- {
- return parse_date(date_str, result, date_t::current_year + 1900);
- }
-}
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