增强的正则表达式解决方案

假设您确实关心处理：Mr.和Mrs.等缩写，那么下面的单一正则表达式解决方案效果非常好：

<?php // test.php Rev:20140218_1500
$re = '/# Match sentence ending in .!? followed by optional quote.
    (                  # $1: Sentence.
      [^.!?]+          # One or more non-end-of-sentence chars.
      (?:              # Zero or more not-end-of-sentence dots.
        \.             # Allow dot mid-sentence, but only if:
        (?:            # Group allowable dot alternatives.
          (?=[^\s\'"]) # Dot is ok if followed by non-ws,
        | (?<=         # or not one of the following:
            Mr\.       # Either "Mr."
          | Mrs\.      # or "Mrs.",
          | Ms\.       # or "Ms.",
          | Jr\.       # or "Jr.",
          | Dr\.       # or "Dr.",
          | Prof\.     # or "Prof.",
          | Sr\.       # or "Sr.",
          | T\.V\.A\.  # or "T.V.A.",
                       # or... (you get the idea).
          )            # End positive lookbehind.
        )              # Group allowable dot alternatives.
        [^.!?]*        # Zero or more non-end-of-sentence chars.
      )*               # Zero or more not-end-of-sentence dots.
      (?:              # Sentence end alternatives.
        [.!?]          # Either end of sentence punctuation
        [\'"]?         # followed by optional quote,
      | $              # Or end of string with no punctuation.
      )                # Sentence end alternatives.
    )                  # End $1: Sentence.
    (?:\s+|$)          # Sentence ends with ws or EOS.
    /ix';

$text = 'This is sentence one. Sentence two! Sentence thr'.
        'ee? Sentence "four". Sentence "five"! Sentence "'.
        'six"? Sentence "seven." Sentence \'eight!\' Dr. '.
        'Jones said: "Mrs. Smith you have a lovely daught'.
        'er!" The T.V.A. is a big project! Last sentence '.
        'with no ending punctuation';

$sentences = array(); // Initialize array of sentences.

function _getSentencesCallback($matches) {
    global $sentences;
    $sentences[] = $matches[1];
    return '';
}
preg_replace_callback($re, '_getSentencesCallback', $text);
for ($i = 0; $i < count($sentences); ++$i) {
    printf("Sentence[%d] = [%s]\n", $i + 1, $sentences[$i]);
}
?>

请注意，您可以轻松地添加或删除表达式中的缩写。鉴于以下测试段落：

这是第一句话。一句两句！判刑三？句子“四”。句子“五”！句子“六”？句子“七”。句子'八！'琼斯博士说：“史密斯太太你有一个可爱的女儿！” T.V.A.是一个很大的项目！

以下是脚本的输出：

Sentence[1] = [This is sentence one.]
Sentence[2] = [Sentence two!]
Sentence[3] = [Sentence three?]
Sentence[4] = [Sentence "four".]
Sentence[5] = [Sentence "five"!]
Sentence[6] = [Sentence "six"?]
Sentence[7] = [Sentence "seven."]
Sentence[8] = [Sentence 'eight!']
Sentence[9] = [Dr. Jones said: "Mrs. Smith you have a lovely daughter!"]
Sentence[10] = [The T.V.A. is a big project!]
Sentence[11] = [Last sentence with no ending punctuation]

希望这有助于和快乐的复兴！

编辑时间：2014-02-19 08:00 字符串末尾的最后一句不再需要标点符号。

正则表达式句子内容匹配

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增强的正则表达式解决方案