/ 
TUI-Vision-2.000_001
/ TUI::Dialogs::Util

NAME

TUI::Dialogs::Util - Utility functions for Turbo Vision dialogs

SYNOPSIS

use TUI::Dialogs::Util qw(hotKey prevWord nextWord);

my $hk = hotKey("~Save");
my $prev = prevWord("Hello world", 6);
my $next = nextWord("Hello world", 0);

DESCRIPTION

This module provides helper functions commonly used in text-based user interface components: extracting marked hotkeys from strings, locating the previous word boundary, and locating the next word boundary within a string. These functions are intended to support navigation and keyboard-interaction logic.

These functions are intentionally small and side-effect free.

FUNCTIONS

hotKey

my $hotkey = hotKey($s);

Extracts a hotkey indicator from the given string.

A hotkey is defined as the character immediately following a tilde (~). If such a marker exists, the character is returned in uppercase. If no hotkey marker is found, the function returns ''.

Example:

my $key = hotKey("~S~ave");
# $key is 'S'

nextWord

my $index = nextWord($s, $pos);

Returns the index of the beginning of the next word in the string.

A word is any sequence of non-space characters. The function searches forward from $pos and returns the index where a space transitions into a non-space character. If no next word exists, the function returns length($s).

prevWord

my $index = prevWord($s, $pos);

Returns the index of the beginning of the previous word in the string.

A word is considered any sequence of non-space characters. The function searches backwards from $pos - 1 and returns the index where a space transitions into a non-space character. If no previous word exists, the function returns 0.

AUTHORS

Borland International (original Turbo Vision design)
J. Schneider <brickpool@cpan.org> (Perl implementation and maintenance)

COPYRIGHT AND LICENSE

Copyright (c) 1990-1994, 1997 by Borland International

Copyright (c) 2026 the "AUTHORS" as listed above.

This software is licensed under the MIT license (see the LICENSE file, which is part of the distribution).