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-rw-r--r--datetime.cc381
1 files changed, 0 insertions, 381 deletions
diff --git a/datetime.cc b/datetime.cc
deleted file mode 100644
index 6d6221e9..00000000
--- a/datetime.cc
+++ /dev/null
@@ -1,381 +0,0 @@
-#if defined(__GNUG__) && __GNUG__ < 3
-#define _XOPEN_SOURCE
-#endif
-
-#include "datetime.h"
-#include "error.h"
-
-#include <ctime>
-#include <cctype>
-
-namespace ledger {
-
-std::time_t now = std::time(NULL);
-int now_year = std::localtime(&now)->tm_year;
-
-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
-};
-
-char input_format[128];
-
-const char * formats[] = {
- "%Y/%m/%d",
- "%m/%d",
- "%Y.%m.%d",
- "%m.%d",
- "%Y-%m-%d",
- "%m-%d",
- "%a",
- "%A",
- "%b",
- "%B",
- "%Y",
- NULL
-};
-
-std::time_t interval_t::first(const std::time_t moment) const
-{
- std::time_t quant = begin;
-
- if (moment && std::difftime(moment, quant) > 0) {
- // 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);
- 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);
-
- std::time_t temp;
- while (std::difftime(moment, temp = increment(quant)) >= 0) {
- if (quant == temp)
- break;
- quant = temp;
- }
- }
-
- return quant;
-}
-
-std::time_t interval_t::increment(const std::time_t moment) const
-{
- std::time_t then = moment;
-
- if (years || months) {
- struct std::tm * desc = std::localtime(&then);
-
- if (years)
- desc->tm_year += years;
-
- if (months) {
- desc->tm_mon += months;
-
- if (desc->tm_mon > 11) {
- desc->tm_year++;
- desc->tm_mon -= 12;
- }
- else if (desc->tm_mon < 0) {
- desc->tm_year--;
- desc->tm_mon += 12;
- }
- }
-
- desc->tm_hour = 0;
- desc->tm_min = 0;
- desc->tm_sec = 0;
- desc->tm_isdst = -1;
-
- then = std::mktime(desc);
- }
-
- return then + seconds;
-}
-
-static void parse_inclusion_specifier(const std::string& word,
- std::time_t * begin,
- std::time_t * end)
-{
- struct std::tm when;
-
- if (! parse_date_mask(word.c_str(), &when))
- throw interval_expr_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 = now_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);
- }
-}
-
-static 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]);
-}
-
-static void parse_date_words(std::istream& in, std::string& word,
- std::time_t * begin, std::time_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", std::localtime(&now));
- word = buf;
- mon_spec = true;
- }
- else if (word == "year") {
- std::strftime(buf, 31, "%Y", std::localtime(&now));
- 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")
- seconds = 86400 * quantity;
- else if (word == "weeks")
- seconds = 7 * 86400 * quantity;
- else if (word == "months")
- months = quantity;
- else if (word == "quarters")
- months = 3 * quantity;
- else if (word == "years")
- years = quantity;
- }
- else if (word == "day")
- seconds = 86400;
- else if (word == "week")
- seconds = 7 * 86400;
- else if (word == "month")
- months = 1;
- else if (word == "quarter")
- months = 3;
- else if (word == "year")
- years = 1;
- }
- else if (word == "daily")
- seconds = 86400;
- else if (word == "weekly")
- seconds = 7 * 86400;
- else if (word == "biweekly")
- seconds = 14 * 86400;
- 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 == "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);
- }
- }
-}
-
-bool parse_date_mask(const char * date_str, struct std::tm * result)
-{
- for (const char ** f = formats; *f; f++) {
- 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;
- when.tm_isdst = -1;
-
- if (when.tm_year == -1)
- when.tm_year = ((year == -1) ? now_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)
-{
-#if 1
- return parse_date(date_str, result, now_year + 1900);
-#else
- int year = -1, month = -1, day, num = 0;
-
- for (const char * p = date_str; *p; p++) {
- if (*p == '/' || *p == '-' || *p == '.') {
- if (year == -1)
- year = num;
- else
- month = num;
- num = 0;
- }
- else if (*p < '0' || *p > '9') {
- return false;
- }
- else {
- num *= 10;
- num += *p - '0';
- }
- }
-
- day = num;
-
- if (month == -1) {
- month = year;
- year = now_year + 1900;
- }
-
- if (base == -1 || year != base_year) {
- struct std::tm when;
- std::memset(&when, 0, sizeof(when));
- when.tm_isdst = -1;
-
- base_year = year == -1 ? now_year + 1900 : year;
- when.tm_year = year == -1 ? now_year : year - 1900;
- when.tm_mday = 1;
-
- base = std::mktime(&when);
- year = base_year;
- }
-
- *result = base;
-
- --month;
- while (--month >= 0) {
- *result += month_days[month] * 24 * 60 * 60;
- if (month == 1 && year % 4 == 0 && year != 2000) // february in leap years
- *result += 24 * 60 * 60;
- }
-
- if (--day)
- *result += day * 24 * 60 * 60;
-
- return true;
-#endif
-}
-
-} // namespace ledger
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