使可变长度列表可翻译 [英] Making a variable length list translatable

问题描述

我想显示一个数组中的值列表，并使其可翻译.我选择的翻译方法是gettext.我要尝试执行的一个示例是将可变长度数组变成:

I want to display a list of values from an array, and have it be translatable. My translation method of choice is gettext. An example of what I am trying to do is to turn a variable-length array like:

$array = ('apple', 'plum', 'watermelon', [...]);

放入一个字符串，例如 apple，李子和西瓜.

into a string like apple, plum and watermelon.

仅用英语进行操作不会有问题，但是使其可翻译是一个问题，因为其他语言不一定会使用逗号来分隔值和/或在倒数第二个之间可能没有逗号而没有单词"and"和最后的值.如果我知道该数组始终有3个值，那么我可以轻松地做到这一点:

Doing it only in English would not be a problem, but making it translatable is, because other languages may not necessarily use a comma to separate values and/or may not have the word "and" without a comma between the second last and last values. If I knew that the array always had 3 values, I could easily just do:

sprintf(gettext("%s, %s and %s"), $array[0], $array[1], $array[2]);

问题在于数组的长度可以变化.如何从可变长度数组制作可翻译列表?

The problem is that the array can vary in length. How can I make a translatable list from a variable-length array?

修改:

也许我没有说清楚，但是其他语言可能会以不同的方式处理列表.例如，一种语言可能会显示诸如 1、2、3、4 之类的列表，另一种语言可能会显示诸如 1、2、3、4 之类的列表，另一种可能具有额外的内容列表之前和之后，等等.

Perhaps I didn't make myself clear, but other languages may handle lists differently. For example a language might display the list like 1 and 2, 3, 4, another one might display it like 1, 2, 3, 4, another might have extra things before and after the list, etc.

推荐答案

我想到的一种方式是这样的:

One way I thought of doing this would be like this:

function array_to_str($array) {
    $two_values = _("%s and %s");
    $three_values = _("%s, %s and %s");
    $separator = _(", ");
    if (count($array) == 1) {
        return $array[0];
    }
    if (count($array) == 2) {
        return sprintf($two_values, $array[0], $array[1]);
    }
    $prev = '';
    for ($i = 0; $i < count($array) - 2; $i++) {
        $prev .= $array[$i];
        if ($i < count($array) - 3) {
            $prev .= $separator;
        }
    }
    return sprintf(
        $three_values, 
        $prev,
        $array[count($array) - 2], 
        $array[count($array) - 1]
    );
}

$arrays[] = array('apple');
$arrays[] = array('apple', 'plum');
$arrays[] = array('apple', 'plum', 'watermelon');
$arrays[] = array('apple', 'plum', 'watermelon', 'lemon');
foreach ($arrays as $array) {
    echo array_to_str($array) . PHP_EOL;
}

这将输出:

apple
apple and plum
apple, plum and watermelon
apple, plum, watermelon and lemon

如果该语言使用列表格式 1和2、3、4、5、6 ，则翻译人员可以通过翻译来克服这一问题

If the language uses the list format 1 and 2, 3, 4, 5, 6, the translator could then overcome this by translating

$three_values = "%3$s and %2$s, %1$s"; 

不幸的是，这样会导致列表混乱.该字符串将输出 6和5、1、2、3、4 .

Unfortunately doing it like this, the list will be out of order. The string would output 6 and 5, 1, 2, 3, 4.

但是，通过Google翻译当前定义的语言，没有没有将和"的位置更改为倒数第二个位置.从右到左的语言在从左到右阅读时将其放在第一个元素之后，但是由于它是从右到左，因此实际上处于正确(倒数第二个)位置.

However, going through the languages currently defined in Google Translate, there are none that change the position of the "and" to be anything but the second last position. The right-to-left languages put it after the first element when reading left to right, but since it is right to left, it is actually in the correct (penultimate) position.

使用此方法还可以使您克服以非标准方式显示其列表的语言:

Using this method would also allow you to overcome languages that display their lists in a non standard way:

(Korean) 1, 2, 3, 4             <-- only commas are used
(Italian) 1, 2, 3 e 4,          <-- extra comma at the end
(Chinese) 1，2，3和4的           <-- extra 的 at the end
(Hungarian) Az 1., 2., 3. és 4. <-- extra A at the beginning for 2 numbers, Az at the beginning for 3 or more numbers

使用上面的函数可以完成这些操作中的最后一个:

The last of these could be done using the above function like this:

$two_values = "A %s és %s";
$three_values = "Az %s, %s és %s";
$separator = ", ";

假设您的电话号码格式正确，则会输出:

Assuming your numbers are formatted correctly, this will output:

A 1. és 2.
Az 1., 2. és 3.
Az 1., 2., 3. és 4.

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