Array based selection of values by selecting either index or member Post: 303045472

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Top Forums Shell Programming and Scripting Array based selection of values by selecting either index or member Post 303045472 by Chubler_XL on Thursday 26th of March 2020 04:37:10 PM

03-26-2020

Moderator

Nice procedure nezabudka, but original request was selection of item by number or by name:

Quote:

<- user enters either number corresponding to entry or the name

For a higher level of difficulty how about spaces in the options:

Code:

#!/bin/bash
listofitems="fried rice,boiled rice,beans,carrots,radishes,rutabaga,spinach"
IFS=, MU=( $listofitems quit )

while true
do
    echo "Please enter the veg you like from"
    select opt in "${MU[@]}"
    do
        [ "$opt" != "" ] && break 3
        # Check REPLY against the array:
        for opt in ${MU[@]}
        do
           [ "$REPLY" = "$opt" ] && break 3
        done
        echo "Illegal selection - try again"
        break
    done
done
echo "You typed $REPLY and selected $opt"

Code:

$ ./menu
Please enter the veg you like from
1) fried rice   3) beans        5) radishes     7) spinach
2) boiled rice  4) carrots      6) rutabaga     8) quit
#? none
Illegal selection - try again
Please enter the veg you like from
1) fried rice   3) beans        5) radishes     7) spinach
2) boiled rice  4) carrots      6) rutabaga     8) quit
#? boiled rice
You typed boiled rice and selected boiled rice

$ ./menu
Please enter the veg you like from
1) fried rice   3) beans        5) radishes     7) spinach
2) boiled rice  4) carrots      6) rutabaga     8) quit
#? 7
You typed 7 and selected spinach

If you have bash 4.0 or higher use below for case insensitive matching (eg type QUIT instead of quit)
[ "${REPLY,,}" = "${opt,,}" ] && break 3

Last edited by Chubler_XL; 03-26-2020 at 06:12 PM..

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xtcancelconvertselectionproc

XtCancelConvertSelectionProc()											    XtCancelConvertSelectionProc()

Name
  XtCancelConvertSelectionProc - interface definition for procedure to cancel incremental selection transfer.

Synopsis
  typedef void (*XtCancelConvertSelectionProc)(Widget, Atom*, Atom*,
  XtRequestId*, XtPointer);
	 Widget w;
	 Atom *selection;
	 Atom *target;
	 XtRequestId *request_id;
	 XtPointer client_data;

Inputs
  w	    Specifies the widget that owns the selection.

  selection Specifies the atom that names the selection being transferred.

  target    Specifies the target type to which the conversion was done.

  request_id
	    Specifies an opaque identification for a specific request.

  client_data
	    Specifies the value passed in by the widget when it took ownership of the selection.

Availability
  Release 4 and later.

Description
  This	procedure  is  registered  in a call to XtOwnSelectionIncremental(), and is called by the Intrinsics to abort an incremental transfer
  when (as determined by the selection timeout or other mechanism) any remaining segments of the selection no longer need to be  transferred.
  Upon	receiving  this  callback,  the selection request is considered complete and the owner should free the memory and any other resources
  that have been allocated for the transfer.

  The w, selection, and client_data arguments are those passed in the call to XtOwnSelectionIncremental().  The target and  request_id	argu-
  ments  are  the  selection target type specified by the selection requestor, and the unique ID assigned to this transfer by the Intrinsics.
  Both will have been passed to a previous call to the XtConvertSelectionIncrProc also registered with XtOwnSelectionIncremental().

See Also
  XtGetSelectionValueIncremental(1), XtGetSelectionValuesIncremental(1), XtGetSelectionTimeout(1), XtOwnSelectionIncremental(1), XtSetSelec-
  tionTimeout(1),
  XtConvertSelectionIncrProc(2), XtLoseSelectionIncrProc(2), XtSelectionDoneIncrProc(2).

Xt - Selections 												    XtCancelConvertSelectionProc()