Multi-Entry Widgets for IPv6 Addresses

For Mentry Version 3.18

by

Csaba Nemethi

csaba.nemethi@t-online.de

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The mentry::ipv6AddrMentry Command

NAME
mentry::ipv6AddrMentry – Create and manipulate mentry widgets for IPv6 addresses
SYNOPSIS
mentry::ipv6AddrMentry pathName ?options?
DESCRIPTION
This command creates a new mentry widget pathName for displaying and editing IPv6 addresses in the standard hexadecimal notation (where the eight groups of one to four hexadecimal digits are separated from each other by o colon).  The supported options are the same as in the case of the mentry::mentry command.
The command sets the type attribute of the widget to the value "IPv6Addr" and returns the name of the newly created widget.
DEFAULT BINDINGS
The mentry::ipv6AddrMentry command defines five new keyboard bindings for the entry components of the mentry widget it creates:  The Up key increments the entry's value by 1 if the latter is less than 65535.  Similarly, the Down key decrements the entry's value by 1 if the latter is greater than 0.  The Prior key increments the entry's value by at most 10 if the latter is less than 65535.  Similarly, the Next key decrements the entry's value by at most 10 if the latter is greater than 0.  If the entry is empty then all of these keys insert the value 0 into the entry.  Finally, Control-v (Command-v on the Mac) pastes the current contents of the clipboad into the mentry, provided that it is a valid IPv6 address.
The actions performed by the Up and Down keys can also be triggered by rolling the mouse wheel.  In addition, on Mac OS Classic and Mac OS X/11+ Aqua, the actions performed by the Prior and Next keys are also triggered by the <Option-MouseWheel> event.  The same holds true on all windowing systems if the Tk version is 8.7a4 or later, where the Option modifier is bound to the Option key on Mac OS X/11+ and to the Alt key on Windows and X11.
KEYWORDS
mentry, widget, IPv6 address

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The mentry::putIPv6Addr Command

NAME
mentry::putIPv6Addr – Output an IPv6 address to a mentry of type "IPv6Addr"
SYNOPSIS
mentry::putIPv6Addr address pathName
DESCRIPTION
This command outputs the IPv6 address address to the mentry widget pathName, which must have been created with the mentry::ipv6AddrMentry command (this is checked by examining the widget's type attribute, which must have the value "IPv6Addr").
The address is expected to consist of up to eight colon-separated groups of one to four hexadecimal digits each.  in case of less than eight groups, the address must include exactly one double-colon (::) (representing consecutive groups of zeros).  The command generates an error if the address is invalid.
KEYWORDS
mentry, widget, IPv6 address

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The mentry::getIPv6Addr Command

NAME
mentry::getIPv6Addr – Get an IPv6 address from a mentry of type "IPv6Addr"
SYNOPSIS
mentry::getIPv6Addr pathName
DESCRIPTION
This command returns the IPv6 address contained in the mentry widget pathName, which must have been created with the mentry::ipv6AddrMentry command (this is checked by examining the widget's type attribute, which must have the value "IPv6Addr").
If any entry component of the widget is empty, the command sets the focus to the first such entry, generates an error, and returns the string "EMPTY".
KEYWORDS
mentry, widget, IPv6 address

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