20071982.less

// "Arrays of Structures in LESS"
// see http://stackoverflow.com/questions/20071982

.product-colors(@index: 0) {
    @list:
        'white'  #fff,
        'green'  #0f0,
        'yellow' #ff0,
        'black'  #000,
        'red'    #f00;
        
    @name:  e(extract(@value, 1));
    @color:   extract(@value, 2);

    @count: length(@list);
    @value: extract(@list, @index);
}

.menu-template() {
    &.menu-@{name} {
        background-color: @color;
        color: darken(@color, 20%);
        &:hover {
             background-color: darken(@color, 10%);
        }
    }
}

.make-menus() {
    .product-colors();
    .-(@count);
    .-(@i) when (@i > 0) {
        .-((@i - 1));
        .product-colors(@i);
        .menu-template();
    }
}

li {
    .make-menus();
}