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* Icalendar templates for recurrence rulesLars Henriksen2020-06-136-0/+66
| | | | | | | To provide a starting point for advanced repeating items. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove systemdialogs option from configurationLars Henriksen2020-06-138-51/+9
| | | | | | | | | The option controls the welcome window and the export/import result messages. The former is dropped. The latter are now always displayed unless calcurse is invoked with the "quiet" option (-q). Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Allow repeat count input (for until) in interactive UILars Henriksen2020-06-133-18/+48
| | | | | | | | | | Shortened repetition type text. Avoid "duration" in until-contexts (reserve it for appointment duration): "duration" changed to "increment" in user texts as well as source. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Extend import of recurrence rulesLars Henriksen2020-06-138-29/+2284
| | | | | | | | Support has been implemented for recurrence rule parts BYMONTH, BYMONTHDAY and BYDAY. A new test has been added. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update import of basic recurrence rulesLars Henriksen2020-06-138-128/+329
| | | | | | | | | | | | | | | | | | | Conversion of COUNT to UNTIL was a simple calculation which assumed one repetiton per period (day, week, month or year); it does not take exception days and invalid dates into account. Solved by a new function which returns the n'th occurrence of a recurrence rule. In calcurse UNTIL is interpreted as a day (DATE), in RFC 5545 as a time of day (DATE-TIME). This has implications when a recurrence rule has an occurrence on the UNTIL day, see comment in ical.c An "Import:" note is added when a multi-day event is imported and turned into a calcurse all-day event. Icalendar quotes in comments have been updated to RFC 5545. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support import of time zones (RFC 5545)Lars Henriksen2020-06-136-48/+112
| | | | | | | | | The property parameter time zone identifier (TZID) is recognized in DTSTART, DTEND and EXDATE and the DATE-TIME value converted to a local time. The time zone identifier is logged in the note file. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix typosMartin Michlmayr2020-06-103-17/+17
| | | | | Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Let RETURN set frequency type to current value in repeat command UILars Henriksen2020-05-242-13/+19
| | | | | | | In addition, the prompt text is shortened. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Include start day in error message for recurrence ruleLars Henriksen2020-05-244-12/+36
| | | | | Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix "next occurrence" for multi-day appointmentsLars Henriksen2020-05-241-6/+9
| | | | | | | Better name: day for occur. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix recurrence rule expansion with ordered weekdayLars Henriksen2020-05-123-20/+57
| | | | | | | | | | | | | | When the order of a weekday in BYDAY rule expansion (like -5SA or 5SU for monthly or 55WE for yearly) exceeds the number of available weekdays in the period (month or year), rule expansion with negative order could result in a floating point exception. The reason: the modified frequency might become zero. Solution. Check order against number of available weekdays and terminate expansion early whenever possible (also for positive orders). Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Take value data type of event start into account in iCal import/exportLars Henriksen2020-05-033-77/+204
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch derives the item type (appointment or event) from the DTSTART value type. It is then used to perform an extended check of date/time values and reject non-conformant import files (like those reported in Github issues #81, (calcurse) events. The patch includes parsing and code corrections and minor refactoring. Background: Ical events are of two types, in calcurse called appointments and events. RFC 5545 has no distinguishing names for them, but describes them in section 3.6.1. The event type is derived from the value type of the DTSTART property. The value type may be either DATE-TIME (appointment) or DATE (event). If not specified by a VALUE property parameter in DTSTART, the default value type is DATE-TIME. The value type must be set explicitly to DATE to get an event. Other properties and rrule parts must agree with the DTSTART value type (DTEND, DURATION, EXDATE and UNTIL). Previously the type of an imported event was derived from the format of the DTSTART value. The DTSTART value type was not taken into account when importing, and not specified for recurring events when exporting (commit 0114289 solved it for events, see GitHub PR #97). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* calcurse-caldav: Ensure config and data dirs existNitroretro2020-05-011-13/+21
| | | | | | Fixes #283. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* calcurse-caldav: Make check_dir create directoriesNitroretro2020-05-011-3/+5
| | | | | | | | This patch makes check_dir(dir) create directories if they don't exist, and it will fail if the path at dir is not a directory. It acts in a similar fashion to io_check_dir from io.c. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support interactive test of recurrence rule extensionsLars Henriksen2020-04-283-1/+68
| | | | | | | The generic command 'next' is introduced. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Help for recurrence rule extensionsLars Henriksen2020-04-282-58/+267
| | | | | | | | | | | The help command has been updated for "repeat". Context dependent, very terse information is built into the repeat command (edit command) for display in the status bar when editing the Weekdays, Months and Monthdays lists. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Treat recurrent events and appointments alikeLars Henriksen2020-04-281-1/+1
| | | | | | | | | | | | | | | | | | | | | The day vector (or "day_items" vector) is used to load the appointments panel with "day_items" (captions, appointments, events). A multi-day appointment has several "day_items" in the day vector. This may also be the case for a recurring item. The day_item structure has a member "start", which for day_items for recurring appointments is set to the occurrence found by recur_item_find_occurrence(), and is used to tell days of a multi-day appointment apart. For day_items for recurring events it was set to "day" of the recur_event structure (the same value for all occurrences) and not used. The value is now the occurrence found by recur_event_find_occurrence(). The patch is backwards compatible and future-proof. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix preselectionLars Henriksen2020-04-281-3/+4
| | | | | | | | | The preselected item is not searched for if the range of days is changed (day_changed = 1). The patch is meant to future-proof the selected-item-algorithm and is backwards compatible. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor the repeat commandLars Henriksen2020-04-282-166/+87
| | | | | | | | | | Code duplication has been eliminated by calling update_rept() from the repeat command ui_day_item_repeat(). The repeat command asks for simple or advanced repetition. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* User interface for recurrence rulesLars Henriksen2020-04-283-77/+416
| | | | | | | | | | | | | | | | | | | | | | | | The function update_rept() is extended with editing of the three recurrence rule lists for BYMONTH, BYMONTHDAY and BYDAY. The integers of the bymonth and bymonthday lists are edited directly as integers, while those of the bywday list are mapped to localized weekday names (as they appear in the calendar panel) with an optional integer prefix (in RFC5545 style: 1MO, -2SA). The RFC5545 (icalendar) requirement that the start day must be the first occurrence and must match the recurrence rule, is met by testing that an occurrence indeed appears on the start day, in these circumstances: - when a recurrent item is loaded from file - when the recurrence rule of an item is edited interactively - when a recurrent appointment gets a new start time - when a recurrent appointment is moved Copy and paste of a recurrent item will only retain the basic recurrence properties of type, frequency, until and exception days. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Tests for recurrence rule extensionsLars Henriksen2020-04-284-1/+5411
| | | | | | Test cases include all the examples from RFC5545 which are supported. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Recurrence rule extensionsLars Henriksen2020-04-286-25/+847
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Terms and concepts are from RFC 5545 (the iCalendar specification). Overall design -------------- Calcurse is extended with full support for BYMONTH, BYDAY and BYMONTHDAY recurrence rule (rrule) parts. The three rule parts are lists of, respectively, months, weekdays and monthdays. The lists are added to 'struct rpt' as linked lists of integers, and the data file format is extended accordingly (details below). Load and save of the lists follow the pattern of the existing list of exception dates, also in 'struct rpt'. The function recur_item_find_occurence() is split into a front-end and a back-end. The back-end, called find_occurrence(), is the original function extended with rrule reductions; the front-end retains the original name and performs rrule expansions. Front-end plus back-end are backwards compatible and require no changes in calling functions. There is no user interface in this patch. Data file extensions -------------------- The BYMONTH, BYDAY and BYMONTHDAY lists are added to that part of an item line which describes the recurrence rule (the "{...}" part). Each list is - like the list of exception days - a space-separated string of values identified by the initial character. Each list is optional and, if present, must follow the until date and precede the exception day list. The lists must appear in order BYMONTHDAY list, BYDAY list and BYMONTH list. The possible list values are - BYMONTH: m1, m2, ..., m12 - BYDAY: w0, w1, ..., w6, w7, w-7, w8, w-8, ..., w377, w-377 - BYMONTHDAY: d1, d2, ..., d31, d-1, d-2, ..., d-31 which are interpreted as (cf. RFC 5545) - BYMONTH: January, February, ..., December. - BYDAY: SU, MO, ..., SA, +1SU, -1SU, +1MO, -1MO, ..., +53SA, -53SA - BYMONTHDAY: the first, the second, ..., the 31st, the last, the last but one, ..., the last but 30 day of the month Examples: Thursday, TH, is w4; Saturday, SA, is w6. The seventh Thursday, +7TH, is w53 (7 * 7 + 4 = 53); the last but second Saturday, -2SA, is w-20 (2 * 7 + 6 = 20); the last day of the month is d-1. Note that the values w-1, w-2, ..., w-6 are not used. A recurrent appointment with a BYDAY rule part: 06/23/2019 @ 12:00 -> 06/23/2019 @ 13:00 {1W w0 w6} |every week on Sunday and Saturday An event with a BYDAY and a BYMONTH rule part: 10/27/2019 [1] {1Y w-7 m10} every year on last Sunday in October An event with until date, a BYMONTH rule part and an exception day: 06/23/2019 [1] {1Y -> 08/31/2021 m5 m6 m7 !07/23/2020} every year on the 23rd in May, June and July for three years, starting on Sunday, 23 June 2019, but not on 23 July 2020. Recurrence set expansion and reduction --------------------------------------- In calcurse a recurrence rule is a quadruple (s, d, r, e) consisting of start, duration, repetition pattern and exception days and is implemented as: (time_t start, long dur, struct rpt *rpt, llist_t *exc) In RFC 5545 parlance, a recurrence rule defines a recurrence set consisting of all recurrence instances (occurrences) not earlier than start which match the rule pattern. With this concept in mind, recur_item_find_occurremce() may be thought of as a membership function for a recurrence set. The call recur_item_find_occurrence(s, d, r, e, day, occurrence) returns true if day belongs to the recurrence set of (s, d, r, e); if so occurrence points to the recurrence instance (the set member). For a recurrence rule with only the basic DAYLY, WEEKLY, MONTHLY or YEARLY type and frequency the recurrence set consists of periodically repeated instances. The BYxxx rule parts modify the recurrence set by reducing or expanding it as specified by RFC 5545. Expansion is implemented in the front-end by modifications of start and/or frequency of the rule (s, d, r, e), often several times, in such a way that the desired recurrence instances are included in the recurrence set. This is possible because the front-end as the very first thing checks for early days (day < s). When day is known not to be early, start (s) can safely be moved backwards. Likewise, if frequency must be changed, the front-end checks whether the frequency repetition applies to the week, month or year of day. Reduction is easier and is performed in the back-end along with the existing validity checks. It consists in checking whether month, day of month or weekday of a found occurrence is on the appropriate list. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor edit of exception daysLars Henriksen2020-04-283-24/+34
| | | | | | | | | | | | | | | The patch contains no functional changes, but is a necessary precondition for extensions of update_rept() (in ui-day.c) with further recurrence rules. The reason is that recurrence parameters must be treated as a whole: if an edit session is cancelled at any point, no value should change, and all parameters should remain as they were. Hence, the new values must only be set after all of them have been determined. This was not the case for the list of exception days, but as long as it was treated last, it did not matter. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve data load error reportingLars Henriksen2020-04-285-53/+54
| | | | | | | | | | | The last part of loading appointments and events is performed by four "scan" functions called from io_load_app(). Failure in this part of data load does not use io_load_error(). The four "scan" functions are changed to return an error message on failure and NULL otherwise (the previous return value was not used). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor function calls: recurrence parameters as a single argumentLars Henriksen2020-04-285-189/+151
| | | | | | | | | | | | | | | | | | | | | The recurrence parameters are type, frequency, until date and exception list (in RFC 5545 parlance FREQ, INTERVAL, UNTIL and EXDATE's). When these are passed in a function call, the argument list becomes long and not very readable. When support for extended recurrence rules is implemented, the number of recurrence parameters increases, and function signatures must be amended. Solution: The "struct rpt" is extended with the exception list; any future recurrence parameters are added here. A pointer to this structure replaces the recurrence parameters in function calls. Note: Each recurrent event and appoinment instance has (a pointer to) a "struct rpt" and in addition an exception list. The latter is retained to avoid the derived changes, and the exception list in the structure is initialized to an empty list when the recurrent instance is created. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use "struct rpt" to shorten argument listsLars Henriksen2020-04-284-95/+78
| | | | | | | Also, prepare for extension of the structure, shorten names and rearrange comments. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Extend use of note file for iCal importLars Henriksen2020-04-287-77/+479
| | | | | | | | | | iCal import to an item note file is extended from DESCRIPTION to LOCATION, COMMENT and STATUS for both events and todos. Addresses GitHub issue #9. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Accept empty DESCRIPTION in ical importLars Henriksen2020-04-282-7/+3
| | | | | | | Adresses GitHub issue #274. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix formatting of DTSTART for recurrent eventsJerem-K2020-04-281-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix typos in calcurse.1.txtMatthias Braun2020-04-281-3/+3
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Release 4.6.0v4.6.0Lukas Fleischer2020-03-273-2/+33
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* po/: Translation updates from TransifexLukas Fleischer2020-03-278-133/+362
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix missing EOL in imported noteLars Henriksen2020-03-271-1/+6
| | | | | Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Extend iCalendar import testsLars Henriksen2020-03-227-1/+165
| | | | | | | | Tests ical-010.sh and ical-011.sh assume that Github issue #265 has been fixed (escape-encoding by export). Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix decoding of escaped characters in imported textLars Henriksen2020-03-223-14/+23
| | | | | | | | Stick strictly to RFC 5545, 3.3.11, Text, for SUMMARY and DESCRIPTION. Adresses Github issue #271. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix ical import loggingLars Henriksen2020-03-221-29/+59
| | | | | | | | | | | | | | | | | | | | | | | | The following issues have been fixed: Functions ical_read_event() and ical_read__todo() do not check the return value of functions which may fail, in which case an item is not skipped even though a problem may have been logged by the called function. Function ical_read_note() fails on empty DESCRIPTION, but does not log it. Function ical_read_exdate() may log a failure, but cannot fail itself. Function ical_read_summary() can fail, but not log a failure. Function ical_read_todo() do not skip a todo with an invalid priority. Additionally: A safety check has been added to ical_get_value(), and log messages resulting from failures have been made uniform. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix display of interactively imported todosLars Henriksen2020-03-221-0/+1
| | | | | | | Todos were imported (and saved), but not loaded into the listbox for display. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve ical import loggingLars Henriksen2020-03-2212-40/+49
| | | | | | | | | The log file is not deleted if items were skipped (adresses Github issue #269). The log file includes the import file name and time. The import line numbers have been corrected (and tests amended). Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Escape necessary characters in SUMMARY on exportKelvin Jackson2020-03-221-5/+26
| | | | | | | Escape semicolons, commas, and backslashes when exporting a calendar item to iCal format. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* gitignore: ignore lots of auto-generated fileshoijui2020-02-181-0/+10
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* gitignore: fix config.* ignorehoijui2020-02-181-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* caldav: Fix XDG_CONFIG_HOME not defaulting to ~/.configNitroretro2020-02-041-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2020-01-3054-56/+56
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update message catalogLukas Fleischer2020-01-301-4/+7
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor cut and paste registersLars Henriksen2020-01-134-16/+25
| | | | | | | | | | Register REG_BLACK_HOLE can neither be copied into nor pasted from and has been removed from the input routine. Register 36 was not used. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Optimize error handling in io_check_dir()Nitroretro2019-12-291-12/+13
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve manual readabilityNitroretro2019-12-291-18/+39
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve man page readabilityNitroretro2019-12-291-24/+19
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Test for the directory structureNitroretro2019-12-237-0/+74
| | | | | | | | Ensure that calcurse uses the right data and configuration directories depending on the conditions. Helped-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use $XDG_{CONFIG,DATA}_HOME in hooksNitroretro2019-12-233-19/+51
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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