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parse_date.re
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "timelib.h"
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <assert.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#if defined(_MSC_VER)
# define strtoll(s, f, b) _atoi64(s)
#elif !defined(HAVE_STRTOLL)
# if defined(HAVE_ATOLL)
# define strtoll(s, f, b) atoll(s)
# else
# define strtoll(s, f, b) strtol(s, f, b)
# endif
#endif
#define TIMELIB_UNSET -99999
#define TIMELIB_SECOND 1
#define TIMELIB_MINUTE 2
#define TIMELIB_HOUR 3
#define TIMELIB_DAY 4
#define TIMELIB_MONTH 5
#define TIMELIB_YEAR 6
#define TIMELIB_WEEKDAY 7
#define TIMELIB_SPECIAL 8
#define EOI 257
#define TIME 258
#define DATE 259
#define TIMELIB_XMLRPC_SOAP 260
#define TIMELIB_TIME12 261
#define TIMELIB_TIME24 262
#define TIMELIB_GNU_NOCOLON 263
#define TIMELIB_GNU_NOCOLON_TZ 264
#define TIMELIB_ISO_NOCOLON 265
#define TIMELIB_AMERICAN 266
#define TIMELIB_ISO_DATE 267
#define TIMELIB_DATE_FULL 268
#define TIMELIB_DATE_TEXT 269
#define TIMELIB_DATE_NOCOLON 270
#define TIMELIB_PG_YEARDAY 271
#define TIMELIB_PG_TEXT 272
#define TIMELIB_PG_REVERSE 273
#define TIMELIB_CLF 274
#define TIMELIB_DATE_NO_DAY 275
#define TIMELIB_SHORTDATE_WITH_TIME 276
#define TIMELIB_DATE_FULL_POINTED 277
#define TIMELIB_TIME24_WITH_ZONE 278
#define TIMELIB_ISO_WEEK 279
#define TIMELIB_LF_DAY_OF_MONTH 280
#define TIMELIB_WEEK_DAY_OF_MONTH 281
#define TIMELIB_TIMEZONE 300
#define TIMELIB_AGO 301
#define TIMELIB_RELATIVE 310
#define TIMELIB_ERROR 999
/* Some compilers like AIX, defines uchar in sys/types.h */
#undef uchar
typedef unsigned char uchar;
#define BSIZE 8192
#define YYCTYPE uchar
#define YYCURSOR cursor
#define YYLIMIT s->lim
#define YYMARKER s->ptr
#define YYFILL(n) return EOI;
#define RET(i) {s->cur = cursor; return i;}
#define timelib_string_free free
#define TIMELIB_HAVE_TIME() { if (s->time->have_time) { add_error(s, "Double time specification"); timelib_string_free(str); return TIMELIB_ERROR; } else { s->time->have_time = 1; s->time->h = 0; s->time->i = 0; s->time->s = 0; s->time->f = 0; } }
#define TIMELIB_UNHAVE_TIME() { s->time->have_time = 0; s->time->h = 0; s->time->i = 0; s->time->s = 0; s->time->f = 0; }
#define TIMELIB_HAVE_DATE() { if (s->time->have_date) { add_error(s, "Double date specification"); timelib_string_free(str); return TIMELIB_ERROR; } else { s->time->have_date = 1; } }
#define TIMELIB_UNHAVE_DATE() { s->time->have_date = 0; s->time->d = 0; s->time->m = 0; s->time->y = 0; }
#define TIMELIB_HAVE_RELATIVE() { s->time->have_relative = 1; }
#define TIMELIB_HAVE_WEEKDAY_RELATIVE() { s->time->have_relative = 1; s->time->relative.have_weekday_relative = 1; }
#define TIMELIB_HAVE_SPECIAL_RELATIVE() { s->time->have_relative = 1; s->time->relative.have_special_relative = 1; }
#define TIMELIB_HAVE_TZ() { s->cur = cursor; if (s->time->have_zone) { s->time->have_zone > 1 ? add_error(s, "Double timezone specification") : add_warning(s, "Double timezone specification"); timelib_string_free(str); s->time->have_zone++; return TIMELIB_ERROR; } else { s->time->have_zone++; } }
#define TIMELIB_INIT s->cur = cursor; str = timelib_string(s); ptr = str
#define TIMELIB_DEINIT timelib_string_free(str)
#define TIMELIB_ADJUST_RELATIVE_WEEKDAY() if (in->time.have_weekday_relative && (in.rel.d > 0)) { in.rel.d -= 7; }
#define TIMELIB_PROCESS_YEAR(x, l) { \
if (((x) == TIMELIB_UNSET) || ((l) >= 4)) { \
/* (x) = 0; */ \
} else if ((x) < 100) { \
if ((x) < 70) { \
(x) += 2000; \
} else { \
(x) += 1900; \
} \
} \
}
#ifdef DEBUG_PARSER
#define DEBUG_OUTPUT(s) printf("%s\n", s);
#define YYDEBUG(s,c) { if (s != -1) { printf("state: %d ", s); printf("[%c]\n", c); } }
#else
#define DEBUG_OUTPUT(s)
#define YYDEBUG(s,c)
#endif
#include "timelib_structs.h"
typedef struct timelib_elems {
unsigned int c; /* Number of elements */
char **v; /* Values */
} timelib_elems;
typedef struct Scanner {
int fd;
uchar *lim, *str, *ptr, *cur, *tok, *pos;
unsigned int line, len;
struct timelib_error_container *errors;
struct timelib_time *time;
const timelib_tzdb *tzdb;
} Scanner;
typedef struct _timelib_lookup_table {
const char *name;
int type;
int value;
} timelib_lookup_table;
typedef struct _timelib_relunit {
const char *name;
int unit;
int multiplier;
} timelib_relunit;
#define HOUR(a) (int)(a * 60)
/* The timezone table. */
const static timelib_tz_lookup_table timelib_timezone_lookup[] = {
#include "timezonemap.h"
{ NULL, 0, 0, NULL },
};
const static timelib_tz_lookup_table timelib_timezone_fallbackmap[] = {
#include "fallbackmap.h"
{ NULL, 0, 0, NULL },
};
const static timelib_tz_lookup_table timelib_timezone_utc[] = {
{ "utc", 0, 0, "UTC" },
};
static timelib_relunit const timelib_relunit_lookup[] = {
{ "sec", TIMELIB_SECOND, 1 },
{ "secs", TIMELIB_SECOND, 1 },
{ "second", TIMELIB_SECOND, 1 },
{ "seconds", TIMELIB_SECOND, 1 },
{ "min", TIMELIB_MINUTE, 1 },
{ "mins", TIMELIB_MINUTE, 1 },
{ "minute", TIMELIB_MINUTE, 1 },
{ "minutes", TIMELIB_MINUTE, 1 },
{ "hour", TIMELIB_HOUR, 1 },
{ "hours", TIMELIB_HOUR, 1 },
{ "day", TIMELIB_DAY, 1 },
{ "days", TIMELIB_DAY, 1 },
{ "week", TIMELIB_DAY, 7 },
{ "weeks", TIMELIB_DAY, 7 },
{ "fortnight", TIMELIB_DAY, 14 },
{ "fortnights", TIMELIB_DAY, 14 },
{ "forthnight", TIMELIB_DAY, 14 },
{ "forthnights", TIMELIB_DAY, 14 },
{ "month", TIMELIB_MONTH, 1 },
{ "months", TIMELIB_MONTH, 1 },
{ "year", TIMELIB_YEAR, 1 },
{ "years", TIMELIB_YEAR, 1 },
{ "monday", TIMELIB_WEEKDAY, 1 },
{ "mon", TIMELIB_WEEKDAY, 1 },
{ "tuesday", TIMELIB_WEEKDAY, 2 },
{ "tue", TIMELIB_WEEKDAY, 2 },
{ "wednesday", TIMELIB_WEEKDAY, 3 },
{ "wed", TIMELIB_WEEKDAY, 3 },
{ "thursday", TIMELIB_WEEKDAY, 4 },
{ "thu", TIMELIB_WEEKDAY, 4 },
{ "friday", TIMELIB_WEEKDAY, 5 },
{ "fri", TIMELIB_WEEKDAY, 5 },
{ "saturday", TIMELIB_WEEKDAY, 6 },
{ "sat", TIMELIB_WEEKDAY, 6 },
{ "sunday", TIMELIB_WEEKDAY, 0 },
{ "sun", TIMELIB_WEEKDAY, 0 },
{ "weekday", TIMELIB_SPECIAL, TIMELIB_SPECIAL_WEEKDAY },
{ "weekdays", TIMELIB_SPECIAL, TIMELIB_SPECIAL_WEEKDAY },
{ NULL, 0, 0 }
};
/* The relative text table. */
static timelib_lookup_table const timelib_reltext_lookup[] = {
{ "first", 0, 1 },
{ "next", 0, 1 },
{ "second", 0, 2 },
{ "third", 0, 3 },
{ "fourth", 0, 4 },
{ "fifth", 0, 5 },
{ "sixth", 0, 6 },
{ "seventh", 0, 7 },
{ "eight", 0, 8 },
{ "eighth", 0, 8 },
{ "ninth", 0, 9 },
{ "tenth", 0, 10 },
{ "eleventh", 0, 11 },
{ "twelfth", 0, 12 },
{ "last", 0, -1 },
{ "previous", 0, -1 },
{ "this", 1, 0 },
{ NULL, 1, 0 }
};
/* The month table. */
static timelib_lookup_table const timelib_month_lookup[] = {
{ "jan", 0, 1 },
{ "feb", 0, 2 },
{ "mar", 0, 3 },
{ "apr", 0, 4 },
{ "may", 0, 5 },
{ "jun", 0, 6 },
{ "jul", 0, 7 },
{ "aug", 0, 8 },
{ "sep", 0, 9 },
{ "sept", 0, 9 },
{ "oct", 0, 10 },
{ "nov", 0, 11 },
{ "dec", 0, 12 },
{ "i", 0, 1 },
{ "ii", 0, 2 },
{ "iii", 0, 3 },
{ "iv", 0, 4 },
{ "v", 0, 5 },
{ "vi", 0, 6 },
{ "vii", 0, 7 },
{ "viii", 0, 8 },
{ "ix", 0, 9 },
{ "x", 0, 10 },
{ "xi", 0, 11 },
{ "xii", 0, 12 },
{ "january", 0, 1 },
{ "february", 0, 2 },
{ "march", 0, 3 },
{ "april", 0, 4 },
{ "may", 0, 5 },
{ "june", 0, 6 },
{ "july", 0, 7 },
{ "august", 0, 8 },
{ "september", 0, 9 },
{ "october", 0, 10 },
{ "november", 0, 11 },
{ "december", 0, 12 },
{ NULL, 0, 0 }
};
#if 0
static char* timelib_ltrim(char *s)
{
char *ptr = s;
while (ptr[0] == ' ' || ptr[0] == '\t') {
ptr++;
}
return ptr;
}
#endif
#if 0
uchar *fill(Scanner *s, uchar *cursor){
if(!s->eof){
unsigned int cnt = s->tok - s->bot;
if(cnt){
memcpy(s->bot, s->tok, s->lim - s->tok);
s->tok = s->bot;
s->ptr -= cnt;
cursor -= cnt;
s->pos -= cnt;
s->lim -= cnt;
}
if((s->top - s->lim) < BSIZE){
uchar *buf = (uchar*) malloc(((s->lim - s->bot) + BSIZE)*sizeof(uchar));
memcpy(buf, s->tok, s->lim - s->tok);
s->tok = buf;
s->ptr = &buf[s->ptr - s->bot];
cursor = &buf[cursor - s->bot];
s->pos = &buf[s->pos - s->bot];
s->lim = &buf[s->lim - s->bot];
s->top = &s->lim[BSIZE];
free(s->bot);
s->bot = buf;
}
if((cnt = read(s->fd, (char*) s->lim, BSIZE)) != BSIZE){
s->eof = &s->lim[cnt]; *(s->eof)++ = '\n';
}
s->lim += cnt;
}
return cursor;
}
#endif
static void add_warning(Scanner *s, char *error)
{
s->errors->warning_count++;
s->errors->warning_messages = realloc(s->errors->warning_messages, s->errors->warning_count * sizeof(timelib_error_message));
s->errors->warning_messages[s->errors->warning_count - 1].position = s->tok ? s->tok - s->str : 0;
s->errors->warning_messages[s->errors->warning_count - 1].character = s->tok ? *s->tok : 0;
s->errors->warning_messages[s->errors->warning_count - 1].message = strdup(error);
}
static void add_error(Scanner *s, char *error)
{
s->errors->error_count++;
s->errors->error_messages = realloc(s->errors->error_messages, s->errors->error_count * sizeof(timelib_error_message));
s->errors->error_messages[s->errors->error_count - 1].position = s->tok ? s->tok - s->str : 0;
s->errors->error_messages[s->errors->error_count - 1].character = s->tok ? *s->tok : 0;
s->errors->error_messages[s->errors->error_count - 1].message = strdup(error);
}
static void add_pbf_warning(Scanner *s, char *error, char *sptr, char *cptr)
{
s->errors->warning_count++;
s->errors->warning_messages = realloc(s->errors->warning_messages, s->errors->warning_count * sizeof(timelib_error_message));
s->errors->warning_messages[s->errors->warning_count - 1].position = cptr - sptr;
s->errors->warning_messages[s->errors->warning_count - 1].character = *cptr;
s->errors->warning_messages[s->errors->warning_count - 1].message = strdup(error);
}
static void add_pbf_error(Scanner *s, char *error, char *sptr, char *cptr)
{
s->errors->error_count++;
s->errors->error_messages = realloc(s->errors->error_messages, s->errors->error_count * sizeof(timelib_error_message));
s->errors->error_messages[s->errors->error_count - 1].position = cptr - sptr;
s->errors->error_messages[s->errors->error_count - 1].character = *cptr;
s->errors->error_messages[s->errors->error_count - 1].message = strdup(error);
}
static timelib_sll timelib_meridian(char **ptr, timelib_sll h)
{
timelib_sll retval = 0;
while (!strchr("AaPp", **ptr)) {
++*ptr;
}
if (**ptr == 'a' || **ptr == 'A') {
if (h == 12) {
retval = -12;
}
} else if (h != 12) {
retval = 12;
}
++*ptr;
if (**ptr == '.') {
*ptr += 3;
} else {
++*ptr;
}
return retval;
}
static timelib_sll timelib_meridian_with_check(char **ptr, timelib_sll h)
{
timelib_sll retval = 0;
while (!strchr("AaPp", **ptr)) {
++*ptr;
}
if (**ptr == 'a' || **ptr == 'A') {
if (h == 12) {
retval = -12;
}
} else if (h != 12) {
retval = 12;
}
++*ptr;
if (**ptr == '.') {
++*ptr;
if (**ptr != 'm' && **ptr != 'M') {
return TIMELIB_UNSET;
}
++*ptr;
if (**ptr != '.' ) {
return TIMELIB_UNSET;
}
++*ptr;
} else if (**ptr == 'm' || **ptr == 'M') {
++*ptr;
} else {
return TIMELIB_UNSET;
}
return retval;
}
static char *timelib_string(Scanner *s)
{
char *tmp = calloc(1, s->cur - s->tok + 1);
memcpy(tmp, s->tok, s->cur - s->tok);
return tmp;
}
static timelib_sll timelib_get_nr_ex(char **ptr, int max_length, int *scanned_length)
{
char *begin, *end, *str;
timelib_sll tmp_nr = TIMELIB_UNSET;
int len = 0;
while ((**ptr < '0') || (**ptr > '9')) {
if (**ptr == '\0') {
return TIMELIB_UNSET;
}
++*ptr;
}
begin = *ptr;
while ((**ptr >= '0') && (**ptr <= '9') && len < max_length) {
++*ptr;
++len;
}
end = *ptr;
if (scanned_length) {
*scanned_length = end - begin;
}
str = calloc(1, end - begin + 1);
memcpy(str, begin, end - begin);
tmp_nr = strtoll(str, NULL, 10);
free(str);
return tmp_nr;
}
static timelib_sll timelib_get_nr(char **ptr, int max_length)
{
return timelib_get_nr_ex(ptr, max_length, NULL);
}
static void timelib_skip_day_suffix(char **ptr)
{
if (isspace(**ptr)) {
return;
}
if (!strncasecmp(*ptr, "nd", 2) || !strncasecmp(*ptr, "rd", 2) ||!strncasecmp(*ptr, "st", 2) || !strncasecmp(*ptr, "th", 2)) {
*ptr += 2;
}
}
static double timelib_get_frac_nr(char **ptr, int max_length)
{
char *begin, *end, *str;
double tmp_nr = TIMELIB_UNSET;
int len = 0;
while ((**ptr != '.') && (**ptr != ':') && ((**ptr < '0') || (**ptr > '9'))) {
if (**ptr == '\0') {
return TIMELIB_UNSET;
}
++*ptr;
}
begin = *ptr;
while (((**ptr == '.') || (**ptr == ':') || ((**ptr >= '0') && (**ptr <= '9'))) && len < max_length) {
++*ptr;
++len;
}
end = *ptr;
str = calloc(1, end - begin + 1);
memcpy(str, begin, end - begin);
if (str[0] == ':') {
str[0] = '.';
}
tmp_nr = strtod(str, NULL);
free(str);
return tmp_nr;
}
static timelib_ull timelib_get_unsigned_nr(char **ptr, int max_length)
{
timelib_ull dir = 1;
while (((**ptr < '0') || (**ptr > '9')) && (**ptr != '+') && (**ptr != '-')) {
if (**ptr == '\0') {
return TIMELIB_UNSET;
}
++*ptr;
}
while (**ptr == '+' || **ptr == '-')
{
if (**ptr == '-') {
dir *= -1;
}
++*ptr;
}
return dir * timelib_get_nr(ptr, max_length);
}
static long timelib_parse_tz_cor(char **ptr)
{
char *begin = *ptr, *end;
long tmp;
while (isdigit(**ptr) || **ptr == ':') {
++*ptr;
}
end = *ptr;
switch (end - begin) {
case 1:
case 2:
return HOUR(strtol(begin, NULL, 10));
break;
case 3:
case 4:
if (begin[1] == ':') {
tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 2, NULL, 10);
return tmp;
} else if (begin[2] == ':') {
tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 3, NULL, 10);
return tmp;
} else {
tmp = strtol(begin, NULL, 10);
return HOUR(tmp / 100) + tmp % 100;
}
case 5:
tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 3, NULL, 10);
return tmp;
}
return 0;
}
static timelib_sll timelib_lookup_relative_text(char **ptr, int *behavior)
{
char *word;
char *begin = *ptr, *end;
timelib_sll value = 0;
const timelib_lookup_table *tp;
while ((**ptr >= 'A' && **ptr <= 'Z') || (**ptr >= 'a' && **ptr <= 'z')) {
++*ptr;
}
end = *ptr;
word = calloc(1, end - begin + 1);
memcpy(word, begin, end - begin);
for (tp = timelib_reltext_lookup; tp->name; tp++) {
if (strcasecmp(word, tp->name) == 0) {
value = tp->value;
*behavior = tp->type;
}
}
free(word);
return value;
}
static timelib_sll timelib_get_relative_text(char **ptr, int *behavior)
{
while (**ptr == ' ' || **ptr == '\t' || **ptr == '-' || **ptr == '/') {
++*ptr;
}
return timelib_lookup_relative_text(ptr, behavior);
}
static long timelib_lookup_month(char **ptr)
{
char *word;
char *begin = *ptr, *end;
long value = 0;
const timelib_lookup_table *tp;
while ((**ptr >= 'A' && **ptr <= 'Z') || (**ptr >= 'a' && **ptr <= 'z')) {
++*ptr;
}
end = *ptr;
word = calloc(1, end - begin + 1);
memcpy(word, begin, end - begin);
for (tp = timelib_month_lookup; tp->name; tp++) {
if (strcasecmp(word, tp->name) == 0) {
value = tp->value;
}
}
free(word);
return value;
}
static long timelib_get_month(char **ptr)
{
while (**ptr == ' ' || **ptr == '\t' || **ptr == '-' || **ptr == '.' || **ptr == '/') {
++*ptr;
}
return timelib_lookup_month(ptr);
}
static void timelib_eat_spaces(char **ptr)
{
while (**ptr == ' ' || **ptr == '\t') {
++*ptr;
}
}
static void timelib_eat_until_separator(char **ptr)
{
++*ptr;
while (strchr(" \t.,:;/-0123456789", **ptr) == NULL) {
++*ptr;
}
}
static const timelib_relunit* timelib_lookup_relunit(char **ptr)
{
char *word;
char *begin = *ptr, *end;
const timelib_relunit *tp, *value = NULL;
while (**ptr != '\0' && **ptr != ' ' && **ptr != ',' && **ptr != '\t') {
++*ptr;
}
end = *ptr;
word = calloc(1, end - begin + 1);
memcpy(word, begin, end - begin);
for (tp = timelib_relunit_lookup; tp->name; tp++) {
if (strcasecmp(word, tp->name) == 0) {
value = tp;
break;
}
}
free(word);
return value;
}
static void timelib_set_relative(char **ptr, timelib_sll amount, int behavior, Scanner *s)
{
const timelib_relunit* relunit;
if (!(relunit = timelib_lookup_relunit(ptr))) {
return;
}
switch (relunit->unit) {
case TIMELIB_SECOND: s->time->relative.s += amount * relunit->multiplier; break;
case TIMELIB_MINUTE: s->time->relative.i += amount * relunit->multiplier; break;
case TIMELIB_HOUR: s->time->relative.h += amount * relunit->multiplier; break;
case TIMELIB_DAY: s->time->relative.d += amount * relunit->multiplier; break;
case TIMELIB_MONTH: s->time->relative.m += amount * relunit->multiplier; break;
case TIMELIB_YEAR: s->time->relative.y += amount * relunit->multiplier; break;
case TIMELIB_WEEKDAY:
TIMELIB_HAVE_WEEKDAY_RELATIVE();
TIMELIB_UNHAVE_TIME();
s->time->relative.d += (amount > 0 ? amount - 1 : amount) * 7;
s->time->relative.weekday = relunit->multiplier;
s->time->relative.weekday_behavior = behavior;
break;
case TIMELIB_SPECIAL:
TIMELIB_HAVE_SPECIAL_RELATIVE();
TIMELIB_UNHAVE_TIME();
s->time->relative.special.type = relunit->multiplier;
s->time->relative.special.amount = amount;
}
}
const static timelib_tz_lookup_table* zone_search(const char *word, long gmtoffset, int isdst)
{
int first_found = 0;
const timelib_tz_lookup_table *tp, *first_found_elem = NULL;
const timelib_tz_lookup_table *fmp;
if (strcasecmp("utc", word) == 0 || strcasecmp("gmt", word) == 0) {
return timelib_timezone_utc;
}
for (tp = timelib_timezone_lookup; tp->name; tp++) {
if (strcasecmp(word, tp->name) == 0) {
if (!first_found) {
first_found = 1;
first_found_elem = tp;
if (gmtoffset == -1) {
return tp;
}
}
if (tp->gmtoffset == gmtoffset) {
return tp;
}
}
}
if (first_found) {
return first_found_elem;
}
for (tp = timelib_timezone_lookup; tp->name; tp++) {
if (tp->full_tz_name && strcasecmp(word, tp->full_tz_name) == 0) {
if (!first_found) {
first_found = 1;
first_found_elem = tp;
if (gmtoffset == -1) {
return tp;
}
}
if (tp->gmtoffset == gmtoffset) {
return tp;
}
}
}
if (first_found) {
return first_found_elem;
}
/* Still didn't find anything, let's find the zone solely based on
* offset/isdst then */
for (fmp = timelib_timezone_fallbackmap; fmp->name; fmp++) {
if ((fmp->gmtoffset * 3600) == gmtoffset && fmp->type == isdst) {
return fmp;
}
}
return NULL;
}
static long timelib_lookup_zone(char **ptr, int *dst, char **tz_abbr, int *found)
{
char *word;
char *begin = *ptr, *end;
long value = 0;
const timelib_tz_lookup_table *tp;
while (**ptr != '\0' && **ptr != ')' && **ptr != ' ') {
++*ptr;
}
end = *ptr;
word = calloc(1, end - begin + 1);
memcpy(word, begin, end - begin);
if ((tp = zone_search(word, -1, 0))) {
value = -tp->gmtoffset / 60;
*dst = tp->type;
value += tp->type * 60;
*found = 1;
} else {
*found = 0;
}
*tz_abbr = word;
return value;
}
static long timelib_get_zone(char **ptr, int *dst, timelib_time *t, int *tz_not_found, const timelib_tzdb *tzdb, timelib_tz_get_wrapper tz_wrapper)
{
timelib_tzinfo *res;
long retval = 0;
*tz_not_found = 0;
while (**ptr == ' ' || **ptr == '\t' || **ptr == '(') {
++*ptr;
}
if ((*ptr)[0] == 'G' && (*ptr)[1] == 'M' && (*ptr)[2] == 'T' && ((*ptr)[3] == '+' || (*ptr)[3] == '-')) {
*ptr += 3;
}
if (**ptr == '+') {
++*ptr;
t->is_localtime = 1;
t->zone_type = TIMELIB_ZONETYPE_OFFSET;
*tz_not_found = 0;
t->dst = 0;
retval = -1 * timelib_parse_tz_cor(ptr);
} else if (**ptr == '-') {
++*ptr;
t->is_localtime = 1;
t->zone_type = TIMELIB_ZONETYPE_OFFSET;
*tz_not_found = 0;
t->dst = 0;
retval = timelib_parse_tz_cor(ptr);
} else {
int found = 0;
long offset;
char *tz_abbr;
t->is_localtime = 1;
offset = timelib_lookup_zone(ptr, dst, &tz_abbr, &found);
if (found) {
t->zone_type = TIMELIB_ZONETYPE_ABBR;
}
#if 0
/* If we found a TimeZone identifier, use it */
if (tz_name) {
t->tz_info = timelib_parse_tzfile(tz_name);
t->zone_type = TIMELIB_ZONETYPE_ID;
}
#endif
/* If we have a TimeZone identifier to start with, use it */
if (strstr(tz_abbr, "/") || strcmp(tz_abbr, "UTC") == 0) {
if ((res = tz_wrapper(tz_abbr, tzdb)) != NULL) {
t->tz_info = res;
t->zone_type = TIMELIB_ZONETYPE_ID;
found++;
}
}
if (found && t->zone_type != TIMELIB_ZONETYPE_ID) {
timelib_time_tz_abbr_update(t, tz_abbr);
}
free(tz_abbr);
*tz_not_found = (found == 0);
retval = offset;
}
while (**ptr == ')') {
++*ptr;
}
return retval;
}
#define timelib_split_free(arg) { \
int i; \
for (i = 0; i < arg.c; i++) { \
free(arg.v[i]); \
} \
if (arg.v) { \
free(arg.v); \
} \
}
static int scan(Scanner *s, timelib_tz_get_wrapper tz_get_wrapper)
{
uchar *cursor = s->cur;
char *str, *ptr = NULL;
std:
s->tok = cursor;
s->len = 0;
/*!re2c
any = [\000-\377];
space = [ \t]+;
frac = "."[0-9]+;
ago = 'ago';
hour24 = [01]?[0-9] | "2"[0-4];
hour24lz = [01][0-9] | "2"[0-4];
hour12 = "0"?[1-9] | "1"[0-2];
minute = [0-5]?[0-9];
minutelz = [0-5][0-9];
second = minute | "60";
secondlz = minutelz | "60";
meridian = ([AaPp] "."? [Mm] "."?) [\000\t ];
tz = "("? [A-Za-z]{1,6} ")"? | [A-Z][a-z]+([_/-][A-Za-z]+)+;
tzcorrection = "GMT"? [+-] hour24 ":"? minute?;
daysuf = "st" | "nd" | "rd" | "th";
month = "0"? [0-9] | "1"[0-2];
day = (([0-2]?[0-9]) | ("3"[01])) daysuf?;
year = [0-9]{1,4};
year2 = [0-9]{2};
year4 = [0-9]{4};
year4withsign = [+-]? [0-9]{4};
dayofyear = "00"[1-9] | "0"[1-9][0-9] | [1-2][0-9][0-9] | "3"[0-5][0-9] | "36"[0-6];
weekofyear = "0"[1-9] | [1-4][0-9] | "5"[0-3];
monthlz = "0" [0-9] | "1" [0-2];
daylz = "0" [0-9] | [1-2][0-9] | "3" [01];
dayfull = 'sunday' | 'monday' | 'tuesday' | 'wednesday' | 'thursday' | 'friday' | 'saturday';
dayabbr = 'sun' | 'mon' | 'tue' | 'wed' | 'thu' | 'fri' | 'sat' | 'sun';
dayspecial = 'weekday' | 'weekdays';
daytext = dayfull | dayabbr | dayspecial;
monthfull = 'january' | 'february' | 'march' | 'april' | 'may' | 'june' | 'july' | 'august' | 'september' | 'october' | 'november' | 'december';
monthabbr = 'jan' | 'feb' | 'mar' | 'apr' | 'may' | 'jun' | 'jul' | 'aug' | 'sep' | 'sept' | 'oct' | 'nov' | 'dec';
monthroman = "I" | "II" | "III" | "IV" | "V" | "VI" | "VII" | "VIII" | "IX" | "X" | "XI" | "XII";
monthtext = monthfull | monthabbr | monthroman;
/* Time formats */
timetiny12 = hour12 space? meridian;
timeshort12 = hour12[:.]minutelz space? meridian;
timelong12 = hour12[:.]minute[:.]secondlz space? meridian;
timeshort24 = 't'? hour24[:.]minute;
timelong24 = 't'? hour24[:.]minute[:.]second;
iso8601long = 't'? hour24 [:.] minute [:.] second frac;
/* iso8601shorttz = hour24 [:] minutelz space? (tzcorrection | tz); */
iso8601normtz = 't'? hour24 [:.] minute [:.] secondlz space? (tzcorrection | tz);
/* iso8601longtz = hour24 [:] minute [:] secondlz frac space? (tzcorrection | tz); */
gnunocolon = 't'? hour24lz minutelz;
/* gnunocolontz = hour24lz minutelz space? (tzcorrection | tz); */
iso8601nocolon = 't'? hour24lz minutelz secondlz;
/* iso8601nocolontz = hour24lz minutelz secondlz space? (tzcorrection | tz); */
/* Date formats */
americanshort = month "/" day;
american = month "/" day "/" year;
iso8601dateslash = year4 "/" monthlz "/" daylz "/"?;
dateslash = year4 "/" month "/" day;
iso8601date4 = year4withsign "-" monthlz "-" daylz;
iso8601date2 = year2 "-" monthlz "-" daylz;
gnudateshorter = year4 "-" month;
gnudateshort = year "-" month "-" day;
pointeddate4 = day [.\t-] month [.-] year4;
pointeddate2 = day [.\t] month "." year2;
datefull = day ([ \t.-])* monthtext ([ \t.-])* year;
datenoday = monthtext ([ .\t-])* year4;
datenodayrev = year4 ([ .\t-])* monthtext;
datetextual = monthtext ([ .\t-])* day [,.stndrh\t ]+ year;
datenoyear = monthtext ([ .\t-])* day [,.stndrh\t ]*;
datenoyearrev = day ([ .\t-])* monthtext;
datenocolon = year4 monthlz daylz;
/* Special formats */
soap = year4 "-" monthlz "-" daylz "T" hour24lz ":" minutelz ":" secondlz frac tzcorrection?;
xmlrpc = year4 monthlz daylz "T" hour24 ":" minutelz ":" secondlz;
xmlrpcnocolon = year4 monthlz daylz 't' hour24 minutelz secondlz;
wddx = year4 "-" month "-" day "T" hour24 ":" minute ":" second;
pgydotd = year4 "."? dayofyear;
pgtextshort = monthabbr "-" daylz "-" year;
pgtextreverse = year "-" monthabbr "-" daylz;
mssqltime = hour12 ":" minutelz ":" secondlz [:.] [0-9]+ meridian;
isoweekday = year4 "-"? "W" weekofyear "-"? [0-7];
isoweek = year4 "-"? "W" weekofyear;
exif = year4 ":" monthlz ":" daylz " " hour24lz ":" minutelz ":" secondlz;
firstdayof = 'first day of'?;
lastdayof = 'last day of'?;
backof = 'back of ' hour24 space? meridian?;
frontof = 'front of ' hour24 space? meridian?;
/* Common Log Format: 10/Oct/2000:13:55:36 -0700 */
clf = day "/" monthabbr "/" year4 ":" hour24lz ":" minutelz ":" secondlz space tzcorrection;
/* Timestamp format: @1126396800 */
timestamp = "@" "-"? [0-9]+;
/* To fix some ambiguities */
dateshortwithtimeshort12 = datenoyear timeshort12;
dateshortwithtimelong12 = datenoyear timelong12;
dateshortwithtimeshort = datenoyear timeshort24;
dateshortwithtimelong = datenoyear timelong24;
dateshortwithtimelongtz = datenoyear iso8601normtz;
/*
* Relative regexps
*/
reltextnumber = 'first'|'second'|'third'|'fourth'|'fifth'|'sixth'|'seventh'|'eight'|'eighth'|'ninth'|'tenth'|'eleventh'|'twelfth';
reltexttext = 'next'|'last'|'previous'|'this';
reltextunit = (('sec'|'second'|'min'|'minute'|'hour'|'day'|'fortnight'|'forthnight'|'month'|'year') 's'?) | 'weeks' | daytext;
relnumber = ([+-]*[ \t]*[0-9]+);
relative = relnumber space? (reltextunit | 'week' );
relativetext = (reltextnumber|reltexttext) space reltextunit;
relativetextweek = reltexttext space 'week';
weekdayof = (reltextnumber|reltexttext) space (dayfull|dayabbr) space 'of';
*/
/*!re2c
/* so that vim highlights correctly */