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author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2013-03-14 05:42:27 +0000 |
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committer | <> | 2013-04-03 16:25:08 +0000 |
commit | c4dd7a1a684490673e25aaf4fabec5df138854c4 (patch) | |
tree | 4d57c44caae4480efff02b90b9be86f44bf25409 /ext/date/lib/parse_iso_intervals.re | |
download | php2-master.tar.gz |
Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master
Diffstat (limited to 'ext/date/lib/parse_iso_intervals.re')
-rw-r--r-- | ext/date/lib/parse_iso_intervals.re | 555 |
1 files changed, 555 insertions, 0 deletions
diff --git a/ext/date/lib/parse_iso_intervals.re b/ext/date/lib/parse_iso_intervals.re new file mode 100644 index 0000000..56aa34d --- /dev/null +++ b/ext/date/lib/parse_iso_intervals.re @@ -0,0 +1,555 @@ +/* + +----------------------------------------------------------------------+ + | 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 | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Authors: Derick Rethans <derick@derickrethans.nl> | + +----------------------------------------------------------------------+ + */ + +/* $Id$ */ + +#include "timelib.h" + +#include <stdio.h> +#include <ctype.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 EOI 257 + +#define TIMELIB_PERIOD 260 +#define TIMELIB_ISO_DATE 261 +#define TIMELIB_ERROR 999 + +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_INIT s->cur = cursor; str = timelib_string(s); ptr = str +#define TIMELIB_DEINIT timelib_string_free(str) + +#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 Scanner { + int fd; + uchar *lim, *str, *ptr, *cur, *tok, *pos; + unsigned int line, len; + struct timelib_error_container *errors; + + struct timelib_time *begin; + struct timelib_time *end; + struct timelib_rel_time *period; + int recurrences; + + int have_period; + int have_recurrences; + int have_date; + int have_begin_date; + int have_end_date; +} Scanner; + +#define HOUR(a) (int)(a * 60) + +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 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(char **ptr, int max_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; + str = calloc(1, end - begin + 1); + memcpy(str, begin, end - begin); + tmp_nr = strtoll(str, NULL, 10); + 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 void timelib_eat_spaces(char **ptr) +{ + while (**ptr == ' ' || **ptr == '\t') { + ++*ptr; + } +} + +static void timelib_eat_until_separator(char **ptr) +{ + while (strchr(" \t.,:;/-0123456789", **ptr) == NULL) { + ++*ptr; + } +} + +static long timelib_get_zone(char **ptr, int *dst, timelib_time *t, int *tz_not_found, const timelib_tzdb *tzdb) +{ + 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); + } + 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); \ + } \ +} + +/* date parser's scan function too large for VC6 - VC7.x + drop the optimization solves the problem */ +#ifdef PHP_WIN32 +#pragma optimize( "", off ) +#endif +static int scan(Scanner *s) +{ + uchar *cursor = s->cur; + char *str, *ptr = NULL; + +std: + s->tok = cursor; + s->len = 0; +/*!re2c + +/* */ +any = [\000-\377]; +number = [0-9]+; + +hour24lz = [01][0-9] | "2"[0-4]; +minutelz = [0-5][0-9]; +monthlz = "0" [1-9] | "1" [0-2]; +monthlzz = "0" [0-9] | "1" [0-2]; +daylz = "0" [1-9] | [1-2][0-9] | "3" [01]; +daylzz = "0" [0-9] | [1-2][0-9] | "3" [01]; +secondlz = minutelz; +year4 = [0-9]{4}; +weekofyear = "0"[1-9] | [1-4][0-9] | "5"[0-3]; + +space = [ \t]+; +datetimebasic = year4 monthlz daylz "T" hour24lz minutelz secondlz "Z"; +datetimeextended = year4 "-" monthlz "-" daylz "T" hour24lz ':' minutelz ':' secondlz "Z"; +period = "P" (number "Y")? (number "M")? (number "W")? (number "D")? ("T" (number "H")? (number "M")? (number "S")?)?; +combinedrep = "P" year4 "-" monthlzz "-" daylzz "T" hour24lz ':' minutelz ':' secondlz; + +recurrences = "R" number; + +isoweekday = year4 "-"? "W" weekofyear "-"? [0-7]; +isoweek = year4 "-"? "W" weekofyear; + +*/ + +/*!re2c + /* so that vim highlights correctly */ + recurrences + { + DEBUG_OUTPUT("recurrences"); + TIMELIB_INIT; + ptr++; + s->recurrences = timelib_get_unsigned_nr((char **) &ptr, 9); + TIMELIB_DEINIT; + s->have_recurrences = 1; + return TIMELIB_PERIOD; + } + + datetimebasic| datetimeextended + { + timelib_time *current; + + if (s->have_date || s->have_period) { + current = s->end; + s->have_end_date = 1; + } else { + current = s->begin; + s->have_begin_date = 1; + } + DEBUG_OUTPUT("datetimebasic | datetimeextended"); + TIMELIB_INIT; + current->y = timelib_get_nr((char **) &ptr, 4); + current->m = timelib_get_nr((char **) &ptr, 2); + current->d = timelib_get_nr((char **) &ptr, 2); + current->h = timelib_get_nr((char **) &ptr, 2); + current->i = timelib_get_nr((char **) &ptr, 2); + current->s = timelib_get_nr((char **) &ptr, 2); + s->have_date = 1; + TIMELIB_DEINIT; + return TIMELIB_ISO_DATE; + } + + period + { + timelib_sll nr; + int in_time = 0; + DEBUG_OUTPUT("period"); + TIMELIB_INIT; + ptr++; + do { + if ( *ptr == 'T' ) { + in_time = 1; + ptr++; + } + if ( *ptr == '\0' ) { + add_error(s, "Missing expected time part"); + break; + } + + nr = timelib_get_unsigned_nr((char **) &ptr, 12); + switch (*ptr) { + case 'Y': s->period->y = nr; break; + case 'W': s->period->d = nr * 7; break; + case 'D': s->period->d = nr; break; + case 'H': s->period->h = nr; break; + case 'S': s->period->s = nr; break; + case 'M': + if (in_time) { + s->period->i = nr; + } else { + s->period->m = nr; + } + break; + default: + add_error(s, "Undefined period specifier"); + break; + } + ptr++; + } while (*ptr); + s->have_period = 1; + TIMELIB_DEINIT; + return TIMELIB_PERIOD; + } + + combinedrep + { + DEBUG_OUTPUT("combinedrep"); + TIMELIB_INIT; + s->period->y = timelib_get_unsigned_nr((char **) &ptr, 4); + ptr++; + s->period->m = timelib_get_unsigned_nr((char **) &ptr, 2); + ptr++; + s->period->d = timelib_get_unsigned_nr((char **) &ptr, 2); + ptr++; + s->period->h = timelib_get_unsigned_nr((char **) &ptr, 2); + ptr++; + s->period->i = timelib_get_unsigned_nr((char **) &ptr, 2); + ptr++; + s->period->s = timelib_get_unsigned_nr((char **) &ptr, 2); + s->have_period = 1; + TIMELIB_DEINIT; + return TIMELIB_PERIOD; + } + + [ .,\t/] + { + goto std; + } + + "\000"|"\n" + { + s->pos = cursor; s->line++; + goto std; + } + + any + { + add_error(s, "Unexpected character"); + goto std; + } +*/ +} +#ifdef PHP_WIN32 +#pragma optimize( "", on ) +#endif + +/*!max:re2c */ + +void timelib_strtointerval(char *s, int len, + timelib_time **begin, timelib_time **end, + timelib_rel_time **period, int *recurrences, + struct timelib_error_container **errors) +{ + Scanner in; + int t; + char *e = s + len - 1; + + memset(&in, 0, sizeof(in)); + in.errors = malloc(sizeof(struct timelib_error_container)); + in.errors->warning_count = 0; + in.errors->warning_messages = NULL; + in.errors->error_count = 0; + in.errors->error_messages = NULL; + + if (len > 0) { + while (isspace(*s) && s < e) { + s++; + } + while (isspace(*e) && e > s) { + e--; + } + } + if (e - s < 0) { + add_error(&in, "Empty string"); + if (errors) { + *errors = in.errors; + } else { + timelib_error_container_dtor(in.errors); + } + return; + } + e++; + + /* init cursor */ + in.str = malloc((e - s) + YYMAXFILL); + memset(in.str, 0, (e - s) + YYMAXFILL); + memcpy(in.str, s, (e - s)); + in.lim = in.str + (e - s) + YYMAXFILL; + in.cur = in.str; + + /* init value containers */ + in.begin = timelib_time_ctor(); + in.begin->y = TIMELIB_UNSET; + in.begin->d = TIMELIB_UNSET; + in.begin->m = TIMELIB_UNSET; + in.begin->h = TIMELIB_UNSET; + in.begin->i = TIMELIB_UNSET; + in.begin->s = TIMELIB_UNSET; + in.begin->f = 0; + in.begin->z = 0; + in.begin->dst = 0; + in.begin->is_localtime = 0; + in.begin->zone_type = TIMELIB_ZONETYPE_OFFSET; + + in.end = timelib_time_ctor(); + in.end->y = TIMELIB_UNSET; + in.end->d = TIMELIB_UNSET; + in.end->m = TIMELIB_UNSET; + in.end->h = TIMELIB_UNSET; + in.end->i = TIMELIB_UNSET; + in.end->s = TIMELIB_UNSET; + in.end->f = 0; + in.end->z = 0; + in.end->dst = 0; + in.end->is_localtime = 0; + in.end->zone_type = TIMELIB_ZONETYPE_OFFSET; + + in.period = timelib_rel_time_ctor(); + in.period->y = 0; + in.period->d = 0; + in.period->m = 0; + in.period->h = 0; + in.period->i = 0; + in.period->s = 0; + in.period->weekday = 0; + in.period->weekday_behavior = 0; + in.period->first_last_day_of = 0; + in.period->days = TIMELIB_UNSET; + + in.recurrences = 1; + + do { + t = scan(&in); +#ifdef DEBUG_PARSER + printf("%d\n", t); +#endif + } while(t != EOI); + + free(in.str); + if (errors) { + *errors = in.errors; + } else { + timelib_error_container_dtor(in.errors); + } + if (in.have_begin_date) { + *begin = in.begin; + } else { + timelib_time_dtor(in.begin); + } + if (in.have_end_date) { + *end = in.end; + } else { + timelib_time_dtor(in.end); + } + if (in.have_period) { + *period = in.period; + } else { + timelib_rel_time_dtor(in.period); + } + if (in.have_recurrences) { + *recurrences = in.recurrences; + } +} + + +/* + * vim: syntax=c + */ |