Clock Widget
============
This widget is a powerful clock. It has a normal view, a roll-over view, and
configurable, time-based alarms. When an alarm is shown, the clock will change
its colour to indicate that. If you then click on it, all alarms since the
last click are shown.
Settings Available:
-------------------
* `set_editor("xterm -e vim")`: Set which editor to use. There is no default,
so this is needed.
* `set_shortformat("%a %b %d")`: Set the format of the short display. You may
specify either a string which has a format that os.date() can understand
(man date has the formats), or a function that returns the usable format.
* `set_longformat(function () return "%T %a %b %d %Y" end)`: Set the format of
the long display. You may specify either a string which has a format that
`os.date()` can understand (`man date` has the formats), or a function that
returns the usable format.
* `set_shorttimer(n)`: Set the delay between updates to `n`
* `set_longtimer(n)`: Set the long delay between updates to `n`, this is used
when obvious is suspended.
To set one of these settings, simply do something like:
```lua
local clock = require("obvious.clock")
clock.set_editor("xterm -e vim")
```
Implementation:
---------------
To use it, include it into your rc.lua by inserting this line:
```lua
local clock = require("obvious.clock")
```
Then configure at least the editor setting (see Settings Available).
To finish your rc.lua changes, add the clock widget to your wibox's
widget list by adding:
```lua
clock()
```
Finally, you want to create the alarm file. The alarm file is contained
in `${XDG_CONFIG_HOME}/awesome/alarms`. In most cases this would be
`~/.config/awesome/alarms`. The alarm file has a format like:
14:30
get pizza from oven
These alarms (each consisting of two lines) are shown with naughty. The first
line of each entry is a Lua regular expression to match against the time in
strftime format `%a-%d-%m-%Y:%H:%M`, which looks like this:
Tue-26-05-2009:22:01
The second line contains the message to show. You can use `\n` inside the
message body if you want a newline.
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