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* Detect error on character inputLars Henriksen2017-10-291-1/+5
| | | | | | | | | | Previously an error from the character input routine wgetch() was silently ignored. It should still be ignored, but must explicitly be detected in order to be ignored. The issue came up in connection with terminal window resize. For whatever reasons ncurses returns ERR (as well as KEY_RESIZE) when wgetch() asks for input after a resize. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix multiple popup windowsLars Henriksen2017-10-293-11/+19
| | | | | | | | | | The window was not deleted if an "already in use"-key was detected, and a new one was created as the loop was reentered. Create/delete of the popup are moved outside the loop. A redrawwin() call is needed to have the window displayed again. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Parse time before date in parse_datetime()Lukas Fleischer2017-10-271-2/+2
| | | | | | | | | Make sure that in cases when the date and time formats conflict, such as is the case with "0030", the input is interpreted as a time value, not a date. Suggested-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make parsing of date-time more strictLukas Fleischer2017-10-261-15/+20
| | | | | | | | | | | In parse_datetime() it was possible to enter any number of dates and times in any order. Allow just date or time or date followed by time. Time must be looked for before date because of conflicting time and date formats. Suggested-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add parse_date_interactive()Lukas Fleischer2017-10-263-8/+13
| | | | | | | | | Add a wrapper around parse_date() which picks the current input date format as well as the currently selected day and passes both values to parse_date(), alongside with the parameters passed to parse_date_interactive() itself. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove recognized keys checkLars Henriksen2017-10-261-36/+12
| | | | | | | All keys known by ncurses can be bound. Thus the check for not recognized keys in custom_keys_config() becomes superfluous. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix spelling of "frequency"Lars Henriksen2017-10-233-10/+8
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support key bindings for all escape keysLars Henriksen2017-10-232-84/+95
| | | | | | | | | | | | | | | | | | | | | All key names for ordinary ASCII keys as well as for escape keys (pseudo keys) are cached in a lookup-table, keynames[], at startup. Mapping between key names (strings) and key codes (integers) in keys_str2int and keys_int2str) is performed through this table. The key names used are those returned by the keyname() function of ncurses. But to accommodate some of the names to the three-letter space available in the status menu, four ordinary keys and the most common escape keys have calcurse abbreviated names: ESC, TAB, RET, SPC and LFT, HOM, PgU, INS, F1, etc. All keys known by ncurses can be bound. Thus the check for not recognized keys in the key configuration menu becomes superfluous. The only keys that cannot be bound, are those escape keys not known to ncurses, i.e. not described by the terminfo database for the terminal type in use. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Updates for UTF-8 key bindingsLars Henriksen2017-10-232-38/+38
| | | | | | | | | | | | | | | | | | | | | Code point mapping adjusted for multibyte characters to avoid the ncurses range 0-KEY_MAX. This includes three fixes: 1) test sequence in keys_assign_binding(), 2) reassemble multi-byte character in keys_wgetch(), 3) check for already in use in keys_assign_binding(). Rearrangement of code. The introduction of allocated memory in keys_int2str() has as a consequence that check for recognized ncurses pseudo characters now are in two places: keys_str2int() and custom_keys_config(). The latter was moved from keys_wgetch() to improve user information. More informative warning messages in custom_keys_config(). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make delete key act as delete instead of backspacenobody2017-10-191-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add CTRL-G readline shortcut to getstring()Quentin Hibon2017-10-191-0/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Do not tie ISO 8601 week numbering to MondayLars Henriksen2017-10-171-7/+12
| | | | | | | | | | | | | | | | | | | | | | | | The week number in the calendar panel is calculated according to ISO 8601. Hence, Monday is the first day of the week and the week number changes from Sunday to Monday. However, calcurse ties the week number not to Monday, but to the first day of the week as configured for display. Thus, when Sunday is shown as first day of the week, the week number is correct for Sunday, but wrong for the rest of the week (one behind). With this patch the week number always follows the mon-sun week as required by ISO 8601. A side effect is that when Sunday is displayed as first day of the week, and Sunday is the selected day, the week number displayed is invalid for the rest of the week (but changes to the correct one when the selected day moves forward). This raises the question whether the week numbering scheme should follow the "first day of the week" choice and use the American week numbering scheme instead of ISO 8601 when Sunday is the first day of the week. But that is for the future. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Reload data after resolving save conflictLukas Fleischer2017-09-081-1/+10
| | | | | | | After resolving a save conflict with the merge tool, we need to reload the data files to import the result of the conflict resolution. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Unset modification flag after mergingLukas Fleischer2017-09-081-0/+2
| | | | | | | Turn off the local modification flag to avoid a bogus warning when reloading the data files immediately after the merge process. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Recompute hashes after savingLukas Fleischer2017-09-081-0/+3
| | | | | | | After saving the data files, we need to recompute and store the hashes to make sure the updated contents is reflected. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out hash computationLukas Fleischer2017-09-081-7/+14
| | | | | | Move code to compute the hash of a data file to a separate function. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use a shared input/output mutexLukas Fleischer2017-09-082-16/+23
| | | | | | | | | Replace the save mutex with a common mutex, which is locked whenever read or write operations on the data files are performed. Also, since this mutex is an implementation detail, mark the locking functions static and remove them from the header file. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Interrupt periodic save when launching processLukas Fleischer2017-09-081-0/+4
| | | | | | | | To avoid interactions between the periodic save thread and external processes, stop the periodic save thread before launching an external program and restart the thread as soon as the program is terminated. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Only reload if data files were changedLukas Fleischer2017-09-083-7/+15
| | | | | | | | Instead of blindly reloading data in io_reload_data(), compare the stored hashes of the data files with hashes of the current file contents and only reload if any of the hashes differs. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out check for external modificationsLukas Fleischer2017-09-081-15/+20
| | | | | | | | Move the check to compare the stored hashes of the data files with the current hash to a separate function. This makes the code easier to read and reusable. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Do not blindly overwrite files when savingLukas Fleischer2017-09-081-0/+59
| | | | | | | | | When reading the data files, compute a cryptographic hash of the file contents and store it. When saving the files later, ensure that the hash still matches the current file contents. If it does not, show a warning to the user and ask whether she wants to execute the merge tool. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use .new as file extension when mergingLukas Fleischer2017-09-081-15/+15
| | | | | | | | Using the file name extension .sav and naming the variables "backup" is slightly misleading, since the affected files actually contain the updated content and not some old snapshot. Use the term "new" instead. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out merge routineLukas Fleischer2017-09-081-48/+44
| | | | | | | Move the code, which runs the merge tool with current and updated data files, to a separate function to make it reusable. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add CALCURSE_{EDITOR,PAGER,MERGETOOL} environment variablesLukas Fleischer2017-09-081-3/+9
| | | | | | | Support environment variables specific to calcurse to override $EDITOR, $PAGER and $MERGETOOL. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make the day heading position configurableLars Henriksen2017-09-085-2/+62
| | | | | | | | | The date at the top of the appointments list may be positioned either to the left, in the middle or to the right. Default is to the right. Can be configured from the general options menu. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove phase of moon featureLars Henriksen2017-09-084-185/+2
| | | | | | | | | | The computation never really worked before and it seems like the feature is not very helpful, sometimes even confusing (see GitHub issue #21). The macro ISLEAP is moved to calcurse.h. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix phase of moon calculationLars Henriksen2017-09-081-27/+30
| | | | | | | | | | | | The reported phase was often one day early because calculations were based on midnight. For full and new moon this is changed to noon. For first and last quarter a direct check of the appearance of the half moon during the selected day is performed. Comments are relocated and expanded. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add missing string initializationLars Henriksen2017-09-041-0/+1
| | | | | | | | | | | When introducing the fmt_day_heading() function in commit d56cc7a (Make heading in appointments panel configurable, 2017-08-19), we forgot to initialize the dynamic string. This resulted in calling mem_free() with a garbage pointer, potentially resulting in a segmentation fault. Fix this by calling string_init() before using the string. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Replace remaining uses of wgetch() by keys_wgetch()Lukas Fleischer2017-09-033-3/+3
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add a function to wait for any key pressLukas Fleischer2017-09-037-26/+32
| | | | | | | Introduce a new function keys_wait_for_any_key() and use it instead of wgetch() whenever the return value is discarded. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve default selection when editing key bindingsLukas Fleischer2017-09-031-4/+4
| | | | | | | | When adding a new key binding, automatically select the new binding. When removing a key binding, keep the selection index (unless the last binding of a row is removed). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use strncpy() properly in general_option_edit()Lukas Fleischer2017-09-031-6/+8
| | | | | | | Always use strncpy() to copy strings between fixed-size buffers and pass the buffer size as maximal length parameter. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add support for UTF-8 key bindingsLukas Fleischer2017-08-303-30/+112
| | | | | | | | | | | | | | | | A new function keys_wgetch() reads full UTF-8 characters instead of single ASCII characters only. Key bindings for regular ASCII characters are stored in a hash map while the actions of keys with higher code points are stored in a linked list for space efficiency. The key serialization methods are updated to handle UTF-8 characters as well; extended UTF-8 characters (characters not in the ASCII range) are serialized by using the hexadecimal representation of the corresponding code points (e.g. "U+00E4"). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Rename keys_getch() to keys_get()Lukas Fleischer2017-08-305-34/+29
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out UTF-8 code point decodingLukas Fleischer2017-08-302-16/+16
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Relocate HANDLE_KEY macrosLukas Fleischer2017-08-301-46/+44
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Implement CTRL-U in getstring()Quentin Hibon2017-08-291-1/+7
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use nl_langinfo() for month and day namesLars Henriksen2017-08-283-35/+8
| | | | | | | | Use the locale setting to fetch the month names and abbreviated day names. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove extra star from recurrent appointmentsLars Henriksen2017-08-281-2/+1
| | | | | | | | | | | In the appointments panel, an appointment has a '-' to mark the time span, and the description on the following line is slightly indented. When the appointment is changed into a recurrent one, the '-' is changed to a '*', making it easily distinguishable but the description also gets a '*', thus breaking the pattern. Drop the extra '*'. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove some leftovers from the pastLars Henriksen2017-08-281-7/+0
| | | | | Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make heading in appointments panel configurableLars Henriksen2017-08-285-7/+40
| | | | | | | | Add a new configuration variable format.dayheading to set the format of the date displayed at the top of the event and appointment list. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Extend strings API for formatted datesLukas Fleischer2017-08-282-0/+22
| | | | | | | | Add two new functions string_catftime(), resp. string_strftime(), which can be used to append, resp. print, a formatted date to a dynamic string. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make the selected day in the calendar stand outLars Henriksen2017-08-282-3/+3
| | | | | Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix support for punctual appointments at 00:00Lukas Fleischer2017-08-281-2/+3
| | | | | | | | | | | | | | When checking whether an appointment belongs to a given day in apoint_inday(), the return value was 0 if the end time of the appointment matched 00:00 on that day (because we do not want to include appointments starting on the day before and lasting until midnight). However, this means that punctual appointments at 00:00 were not included in any day. Fix the apoint_inday() logic to take this into consideration. Fixes GitHub issue #39. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix empty warning box when key is already in useLars Henriksen2017-08-121-0/+2
| | | | | | | | | | | | When adding a key already in use for another action, a warning box is displayed. The text length is limited by the window width through the use of strncpy(). If the limit is exceeded, the string will have no null termination, resulting in unpredictable behaviour. A similar problem in fatalbox() is fixed as well. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix fatal error when using the help commandLars Henriksen2017-08-121-5/+6
| | | | | | | Check that an action is defined for the key. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Check for optional argument to -s optionLars Henriksen2017-08-121-0/+2
| | | | | Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Include stdarg.h when using variable argument listsLukas Fleischer2017-07-283-0/+4
| | | | | | Fixes GitHub issue #36. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix segmentation fault when changing colorsLukas Fleischer2017-07-281-3/+3
| | | | | | | | | | | | | | | | The pair_content() function can be used to retrieve a color pair. The foreground and the background color numbers are written to addresses specified by the second and third parameters. While both parameters were optional in older ncurses implementations (making it possible to pass NULL pointers if the one does not care about either foreground or background color), recent implementations seem to assume that both parameters are valid pointers. Thus, instead of passing NULL, we need to pass a pointer to a dummy variable when we do not care about the background color. Partly fixes GitHub issue #31. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix another error in the notification codeLukas Fleischer2017-02-111-1/+6
| | | | | | | | | | In addition to checking whether a recurrent item predates the current next appointment, we need to check that the actual occurrence of the item predates the current appointment as well. Fixes GitHub issue #26. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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