build: Build mlibc + add distclean target

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 0 insertions, 505 deletions

diff --git a/lib/mlibc/options/posix/generic/time.cpp b/lib/mlibc/options/posix/generic/time.cpp
deleted file mode 100644
index 14193af..0000000
--- a/lib/mlibc/options/posix/generic/time.cpp
+++ /dev/null
@@ -1,505 +0,0 @@
-#include <ctype.h>
-#include <langinfo.h>
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-
-#include <bits/ensure.h>
-#include <mlibc/strings.hpp>
-
-namespace {
-
-int month_to_day(int month) {
-	switch(month){
-		case  0: return 0;
-		case  1: return 31;
-		case  2: return 59;
-		case  3: return 90;
-		case  4: return 120;
-		case  5: return 151;
-		case  6: return 181;
-		case  7: return 212;
-		case  8: return 243;
-		case  9: return 273;
-		case 10: return 304;
-		case 11: return 334;
-	}
-	return -1;
-}
-
-int is_leapyear(int year) {
-	return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
-}
-
-int month_and_year_to_day_in_year(int month, int year){
-	int day = month_to_day(month);
-	if(is_leapyear(year) && month < 2)
-		return day + 1;
-
-	return day;
-}
-
-int target_determination(int month) {
-	switch(month){
-		case 0: return 3;
-		case 1: return 14;
-		case 2: return 14;
-		case 3: return 4;
-		case 4: return 9;
-		case 5: return 6;
-		case 6: return 11;
-		case 7: return 8;
-		case 8: return 5;
-		case 9: return 10;
-		case 10: return 7;
-		case 11: return 12;
-	}
-
-	return -1;
-}
-
-int doom_determination(int full_year) {
-	int century = full_year / 100;
-	int anchor = 2 + 5 * (century % 4) % 7;
-
-	int year = full_year % 100;
-
-	if(year % 2)
-		year += 11;
-
-	year /= 2;
-
-	if(year % 2)
-		year += 11;
-
-	return 7 - (year % 7) + anchor;
-}
-
-//Determine day of week through the doomsday algorithm.
-int day_determination(int day, int month, int year) {
-	int doom = doom_determination(year);
-	bool leap = is_leapyear(year);
-
-	int target = target_determination(month);
-	if(leap && month < 2)
-		target++;
-
-	int doom_dif = (day - target) % 7;
-	return (doom + doom_dif) % 7;
-}
-
-struct strptime_internal_state {
-	bool has_century;
-	bool has_year;
-	bool has_month;
-	bool has_day_of_month;
-	bool has_day_of_year;
-	bool has_day_of_week;
-
-	bool full_year_given;
-
-	int century;
-
-	size_t format_index;
-	size_t input_index;
-};
-
-char *strptime_internal(const char *__restrict input, const char *__restrict format,
-	struct tm *__restrict tm, struct strptime_internal_state *__restrict state) {
-	auto matchLanginfoItem = [&] (int start, size_t num, int &dest, bool &flag) -> bool {
-		for(size_t i = start; i < (start + num); i++) {
-			const char *mon = nl_langinfo(i);
-			size_t len = strlen(mon);
-			if(mlibc::strncasecmp(&input[state->input_index], mon, len))
-				continue;
-			state->input_index += len;
-			dest = i - start;
-			flag = true;
-			return true;
-		}
-		return false;
-	};
-
-	auto matchNumericRange = [&] (int start, int end, int &dest, bool *flag) -> bool {
-		int product = 0, n = 0;
-		sscanf(&input[state->input_index], "%d%n", &product, &n);
-		if(n == 0 || 2 < n)
-			return false;
-		if(product < start || product > end)
-			return false;
-		state->input_index += n;
-		dest = product;
-		if(flag) *flag = true;
-		return true;
-	};
-
-	while(isspace(input[state->input_index]))
-		state->input_index++;
-
-	if(input[state->input_index] == '\0')
-		return NULL;
-
-	while(format[state->format_index] != '\0'){
-		if(format[state->format_index] != '%'){
-			if(isspace(format[state->format_index])){
-				while(isspace(input[state->input_index++]));
-				state->input_index--;
-			}
-			else {
-				if(format[state->format_index] != input[state->input_index++])
-					return NULL;
-			}
-			state->format_index++;
-			continue;
-		}
-		state->format_index++;
-		switch(format[state->format_index]){
-			case '%':
-				if(input[state->input_index++] != '%')
-					return NULL;
-				break;
-			case 'a':
-			case 'A': {
-				if (!matchLanginfoItem(DAY_1, 7, tm->tm_wday, state->has_day_of_week) && \
-					!matchLanginfoItem(ABDAY_1, 7, tm->tm_wday, state->has_day_of_week))
-					return NULL;
-				break;
-			}
-			case 'b':
-			case 'B':
-			case 'h': {
-				if (!matchLanginfoItem(MON_1, 12, tm->tm_mon, state->has_month) && \
-					!matchLanginfoItem(ABMON_1, 12, tm->tm_mon, state->has_month))
-					return NULL;
-				break;
-			}
-			case 'c':
-				__ensure(!"strptime() %c directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'C': {
-				int product = 0, n = 0;
-				sscanf(&input[state->input_index], "%d%n", &product, &n);
-				if(n == 0 || 2 < n)
-					return NULL;
-				state->input_index += n;
-				state->century = product;
-				state->has_century = true;
-				break;
-			}
-			case 'd': //`%d` and `%e` are equivalent
-			case 'e': {
-				if(!matchNumericRange(1, 31, tm->tm_mday, &state->has_day_of_month))
-					return NULL;
-				break;
-			}
-			case 'D': { //equivalent to `%m/%d/%y`
-				size_t pre_fi = state->format_index;
-				state->format_index = 0;
-
-				char *result = strptime_internal(input, "%m/%d/%y", tm, state);
-				if(result == NULL)
-					return NULL;
-
-				state->format_index = pre_fi;
-				break;
-			}
-			case 'H': {
-				if(!matchNumericRange(0, 23, tm->tm_hour, nullptr))
-					return NULL;
-				break;
-			}
-			case 'I': {
-				if(!matchNumericRange(1, 12, tm->tm_hour, nullptr))
-					return NULL;
-				break;
-			}
-			case 'j': {
-				if(!matchNumericRange(1, 366, tm->tm_yday, &state->has_day_of_year))
-					return NULL;
-				tm->tm_yday--;
-				break;
-			}
-			case 'm': {
-				if(!matchNumericRange(1, 12, tm->tm_mon, &state->has_month))
-					return NULL;
-				tm->tm_mon--;
-				break;
-			}
-			case 'M': {
-				if(!matchNumericRange(0, 59, tm->tm_min, nullptr))
-					return NULL;
-				break;
-			}
-			case 'n':
-			case 't': {
-				size_t n = 0;
-				while(isspace(input[state->input_index++]))
-					n++;
-				if(n == 0)
-					return NULL;
-				state->input_index--;
-				break;
-			}
-			case 'p': {
-				const char *meridian_str = nl_langinfo(AM_STR);
-				size_t len = strlen(meridian_str);
-				if (!mlibc::strncasecmp(&input[state->input_index], meridian_str, len)) {
-					tm->tm_hour %= 12;
-					state->input_index += len;
-					break;
-				}
-				meridian_str = nl_langinfo(PM_STR);
-				len = strlen(meridian_str);
-				if (!mlibc::strncasecmp(&input[state->input_index], meridian_str, len)) {
-					tm->tm_hour %= 12;
-					tm->tm_hour += 12;
-					state->input_index += len;
-					break;
-				}
-				break;
-			}
-			case 'r': {  //equivalent to `%I:%M:%S %p`
-				size_t pre_fi = state->format_index;
-				state->format_index = 0;
-
-				char *result = strptime_internal(input, "%I:%M:%S %p", tm, state);
-				if(result == NULL)
-					return NULL;
-
-				state->format_index = pre_fi;
-				break;
-			}
-			case 'R': { //equivalent to `%H:%M`
-				size_t pre_fi = state->format_index;
-				state->format_index = 0;
-
-				char *result = strptime_internal(input, "%H:%M", tm, state);
-				if(result == NULL)
-					return NULL;
-
-				state->format_index = pre_fi;
-				break;
-			}
-			case 'S': {
-				if(!matchNumericRange(0, 60, tm->tm_sec, nullptr))
-					return NULL;
-				break;
-			}
-			case 'T': { //equivalent to `%H:%M:%S`
-				size_t pre_fi = state->format_index;
-				state->format_index = 0;
-
-				char *result = strptime_internal(input, "%H:%M:%S", tm, state);
-				if(result == NULL)
-					return NULL;
-
-				state->format_index = pre_fi;
-				break;
-			}
-			case 'U':
-				__ensure(!"strptime() %U directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'w': {
-				int product = 0, n = 0;
-				sscanf(&input[state->input_index], "%d%n", &product, &n);
-				if(n == 0 || 1 < n)
-					return NULL;
-				state->input_index += n;
-				tm->tm_wday = product;
-				state->has_day_of_week = true;
-				break;
-			}
-			case 'W':
-				__ensure(!"strptime() %W directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'x':
-				__ensure(!"strptime() %x directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'X':
-				__ensure(!"strptime() %X directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'y': {
-				int product = 0, n = 0;
-				sscanf(&input[state->input_index], "%d%n", &product, &n);
-				if(n == 0 || 2 < n)
-					return NULL;
-				if(product < 69)
-					product += 100;
-				state->input_index += n;
-				tm->tm_year = product;
-				state->has_year = true;
-				break;
-			}
-			case 'Y': {
-				int product = 0, n = 0;
-				sscanf(&input[state->input_index], "%d%n", &product, &n);
-				if(n == 0 || 4 < n)
-					return NULL;
-				state->input_index += n;
-				tm->tm_year = product - 1900;
-				state->has_year = true;
-				state->has_century = true;
-				state->full_year_given = true;
-				state->century = product / 100;
-				break;
-			}
-			case 'F': { //GNU extensions
-				//equivalent to `%Y-%m-%d`
-				size_t pre_fi = state->format_index;
-				state->format_index = 0;
-
-				char *result = strptime_internal(input, "%Y-%m-%d", tm, state);
-				if(result == NULL)
-					return NULL;
-
-				state->format_index = pre_fi;
-				break;
-			}
-			case 'g':
-				__ensure(!"strptime() %g directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'G':
-				__ensure(!"strptime() %G directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'u': {
-				if(!matchNumericRange(1, 7, tm->tm_wday, nullptr))
-					return NULL;
-				tm->tm_wday--;
-				break;
-			}
-			case 'V':
-				__ensure(!"strptime() %V directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'z':
-				__ensure(!"strptime() %z directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'Z':
-				__ensure(!"strptime() %Z directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 's': //end of GNU extensions
-				__ensure(!"strptime() %s directive unimplemented.");
-				__builtin_unreachable();
-				break;
-			case 'E': { //locale-dependent date & time representation
-				__ensure(!"strptime() %E* directives unimplemented.");
-				__builtin_unreachable();
-				/*
-				state->format_index++;
-				switch(format[state->format_index]){
-					case 'c':
-						break;
-					case 'C':
-						break;
-					case 'x':
-						break;
-					case 'X':
-						break;
-					case 'y':
-						break;
-					case 'Y':
-						break;
-					default:
-						return NULL;
-				}
-				*/
-			}
-			case 'O': { //locale-dependent numeric symbols
-				__ensure(!"strptime() %O* directives unimplemented.");
-				__builtin_unreachable();
-				/*
-				state->format_index++;
-				switch(format[state->format_index]){
-					case 'd':
-					case 'e':
-						break;
-					case 'H':
-						break;
-					case 'I':
-						break;
-					case 'm':
-						break;
-					case 'M':
-						break;
-					case 'S':
-						break;
-					case 'U':
-						break;
-					case 'w':
-						break;
-					case 'W':
-						break;
-					case 'y':
-						break;
-					default:
-						return NULL;
-				}
-				*/
-			}
-			default:
-				return NULL;
-		}
-		state->format_index++;
-	}
-
-	return (char*)input + state->input_index;
-}
-
-} //anonymous namespace
-
-char *strptime(const char *__restrict s, const char *__restrict format, struct tm *__restrict tm){
-	struct strptime_internal_state state = {};
-
-	char *result = strptime_internal(s, format, tm, &state);
-
-	if(result == NULL)
-		return NULL;
-
-	if(state.has_century && !state.full_year_given){
-		int full_year = state.century * 100;
-
-		if(state.has_year){
-			//Compensate for default century-adjustment of `%j` operand
-			if(tm->tm_year >= 100)
-				full_year += tm->tm_year - 100;
-			else
-				full_year += tm->tm_year;
-		}
-
-		tm->tm_year = full_year - 1900;
-
-		state.has_year = true;
-	}
-
-	if(state.has_month && !state.has_day_of_year){
-		int day = 0;
-		if(state.has_year)
-			day = month_and_year_to_day_in_year(tm->tm_mon, tm->tm_year);
-		else
-			day = month_to_day(tm->tm_mon);
-
-		tm->tm_yday = day + tm->tm_mday - 1;
-		state.has_day_of_year = true;
-	}
-
-	if(state.has_year && !state.has_day_of_week){
-		if(!state.has_month && !state.has_day_of_month){
-			tm->tm_wday = day_determination(0, 0, tm->tm_year + 1900);
-		}
-		else if(state.has_month && state.has_day_of_month){
-			tm->tm_wday = day_determination(tm->tm_mday, tm->tm_mon, tm->tm_year + 1900);
-		}
-		state.has_day_of_week = true;
-	}
-
-	return result;
-}