08-28-2017
Please become accustomed to provide decent context info of your problem.
It is always helpful to carefully and detailedly phrase a request, and to support it with system info like OS and shell, related environment (variables, options), preferred tools, adequate (representative) sample input and desired output data and the logics connecting the two, and, if existent, system (error) messages verbatim, to avoid ambiguities and keep people from guessing.
Hadn't it been nice had you presented your problem in sufficient verbosity? Am I guessing right you want to know why the YDATE variable is empty / unassigned? That's because the reading from the pipe is done in a subshell and thus not passed back to the parent.
If people knew what your system is, proposals could be posted to simplify your shell function, or make it more efficient resp.
This User Gave Thanks to RudiC For This Post:
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LEARN ABOUT OSX
widget_calendar
widget_calendar(n) widget::calendar Megawidget widget_calendar(n)
__________________________________________________________________________________________________________________________________________________
NAME
widget_calendar - widget::calendar Megawidget
SYNOPSIS
package require Tcl 8.4
package require Tk 8.4
package require widget ?3.0?
widget::calendar pathname ?options?
_________________________________________________________________
DESCRIPTION
This package provides a calendar megawidget (snidget).
widget::calendar pathname ?options?
WIDGET OPTIONS
-command
A script to evaluate when a date was selected.
-dateformat
The format of the date that is returned. Default: %m/%d/%Y.
-firstday
Set first day the week, Either sunday or monday. It defaults to monday.
-font Select the font used in the widget. It defaults to Helvetica 9.
-highlightcolor
Selects the background color for the day that has been selected. Default: #FFCC00
-language
Specify language of the calendar contents. The language is specified by abbreviations of the languge, for example: en - english, de
- german ... It defaults to en.
Supported languages: en, de, fr, it, es, pt, ru, sv, zh, fi
-shadecolor
Selects the color of the parts that have a shaded background. Default: #888888
-showpast
Specify if the past shall be shown. It is a boolean value and defaults to 1.
-textvariable
Specifies the name of a variable whose value is linked to the entry widget's contents. Whenever the variable changes value, the
widget's contents are updated, and vice versa.
WIDGET COMMAND
pathname get ?what?
Returns a part of the selected date or 'all'. The argument what selects the part. Valid values for what are: day, month, year and all.
'all' is the default and returns the complete date in the format given with -dateformat.
DEFAULT BINDINGS
On creation of the calendar widget the following bindings are installed.
o Up - Move to week before current date
o Down - Move to week after current date
o Left - Move to day before current date
o Right - Move to day after current date
o Control-Left - Move to month before current date
o Control-Right - Move to month after current date
o Control-Up - Move to year before current date
o Control-Down - Move to year after current date
EXAMPLE
package require widget::calendar ; # or widget::all
set t [widget::calendar .t]
pack $t -fill x -expand 1
KEYWORDS
megawidget, snit, widget
widget 0.93 widget_calendar(n)