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197 lines
6.0 KiB
197 lines
6.0 KiB
/*
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* Vzic - a program to convert Olson timezone database files into VZTIMEZONE
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* files compatible with the iCalendar specification (RFC2445).
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*
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* Copyright (C) 2000-2001 Ximian, Inc.
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* Copyright (C) 2003 Damon Chaplin.
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*
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* Author: Damon Chaplin <damon@gnome.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _VZIC_H_
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#define _VZIC_H_
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#include <glib.h>
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/*
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* Global command-line options.
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*/
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/* By default we output Outlook-compatible output. If --pure is used we output
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pure output, with no changes to be compatible with Outlook. */
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extern gboolean VzicPureOutput;
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extern gboolean VzicDumpOutput;
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extern gboolean VzicDumpChanges;
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extern gboolean VzicDumpZoneNamesAndCoords;
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extern gboolean VzicDumpZoneTranslatableStrings;
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extern gboolean VzicNoRRules;
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extern gboolean VzicNoRDates;
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extern char* VzicUrlPrefix;
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extern GList* VzicTimeZoneNames;
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/* The minimum & maximum years we can use. */
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#define YEAR_MINIMUM G_MININT
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#define YEAR_MAXIMUM G_MAXINT
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/* The maximum size of any complete pathname. */
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#define PATHNAME_BUFFER_SIZE 1024
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/* Days can be expressed either as a simple month day number, 1-31, or a rule
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such as the last Sunday, or the first Monday on or after the 8th. */
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typedef enum
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{
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DAY_SIMPLE,
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DAY_WEEKDAY_ON_OR_AFTER,
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DAY_WEEKDAY_ON_OR_BEFORE,
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DAY_LAST_WEEKDAY
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} DayCode;
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/* Times can be given either as universal time (UTC), local standard time
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(without daylight-saving adjustments) or wall clock time (local standard
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time plus daylight-saving adjustments, i.e. what you would see on a clock
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on the wall!). */
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typedef enum
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{
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TIME_WALL,
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TIME_STANDARD,
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TIME_UNIVERSAL
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} TimeCode;
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/* This represents one timezone, e.g. "Africa/Algiers".
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It contains the timezone name, and an array of ZoneLineData structs which
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hold data from each Zone line, including the continuation lines. */
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typedef struct _ZoneData ZoneData;
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struct _ZoneData
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{
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char *zone_name;
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/* An array of ZoneLineData, one for each Zone & Zone continuation line
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read in. */
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GArray *zone_line_data;
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};
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typedef struct _ZoneLineData ZoneLineData;
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struct _ZoneLineData
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{
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/* The amount of time to add to UTC to get local standard time for the
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current time range, in seconds. */
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int stdoff_seconds;
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/* Either rules is set to the name of a set of rules, or rules is NULL and
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save is set to the time to add to local standard time to get wall time, in
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seconds. If save is 0 as well, then standard time always applies. */
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char *rules;
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int save_seconds;
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/* The format to use for the abbreviated timezone name, e.g. WE%sT.
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The %s is replaced by variable part of the name. (See the letter_s field
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in the RuleData struct below). */
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char *format;
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/* TRUE if an UNTIL time is given. */
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gboolean until_set;
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/* The UNTIL year, e.g. 2000. */
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int until_year;
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/* The UNTIL month 0 (Jan) to 11 (Dec). */
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int until_month;
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/* The UNTIL day, either a simple month day number, 1-31, or a rule such as
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the last Sunday, or the first Monday on or after the 8th. */
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DayCode until_day_code;
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int until_day_number; /* 1 to 31. */
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int until_day_weekday; /* 0 (Sun) to 6 (Sat). */
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/* The UNTIL time, in seconds from midnight. The code specifies whether the
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time is a wall clock time, local standard time, or universal time. */
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int until_time_seconds;
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TimeCode until_time_code;
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};
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typedef struct _RuleData RuleData;
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struct _RuleData
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{
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/* The first year that the rule applies to, e.g. 1996.
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Can also be YEAR_MINIMUM. */
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int from_year;
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/* The last year that the rule applies to, e.g. 1996.
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Can also be YEAR_MAXIMUM. */
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int to_year;
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/* A string used to only match certain years between from and to.
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The rule only applies to the years which match. If type is NULL the rule
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applies to all years betweeen from and to.
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zic uses an external program called yearistype to check the string.
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Currently it is not used in the Olson database. */
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char *type;
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/* The month of the rule 0 (Jan) to 11 (Dec). */
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int in_month;
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/* The day, either a simple month day number, 1-31, or a rule such as
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the last Sunday, or the first Monday on or after the 8th. */
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DayCode on_day_code;
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int on_day_number;
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int on_day_weekday; /* 0 (Sun) to 6 (Sat). */
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/* The time, in seconds from midnight. The code specifies whether the
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time is a wall clock time, local standard time, or universal time. */
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int at_time_seconds;
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TimeCode at_time_code;
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/* The amount of time to add to local standard time when the rule is in
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effect, in seconds. If this is not 0 then it must be a daylight-saving
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time. */
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int save_seconds;
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/* The letter(s) to use as the variable part in the abbreviated timezone
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name. If this is NULL then no variable part is used. (See the format field
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in the ZoneLineData struct above.) */
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char *letter_s;
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/* This is set to TRUE if this element is a shallow copy of another one,
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in which case we don't free any of the fields. */
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gboolean is_shallow_copy;
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};
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typedef struct _ZoneDescription ZoneDescription;
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struct _ZoneDescription
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{
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/* 2-letter ISO 3166 country code. */
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char country_code[2];
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/* latitude and longitude in degrees, minutes & seconds. The degrees value
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holds the sign of the entire latitude/longitude. */
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int latitude[3];
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int longitude[3];
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char *comment;
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};
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#endif /* _VZIC_H_ */
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