英文分句/分段落

php环境，指出一个原本分句的时候的误区，分句不用考虑小数点，不用考虑域名，因为标准的句子是句号后面加空格的，唯一要考虑的就是Mr. Li 这种。
先采用分段落的方式是考虑到有些引用采用冒号结尾。

2. /*TWWY'S ART*/
4. function break_passage($text){ //分割段落
5. return preg_split("/(\r|\n|\r\n)/", $text, -1, PREG_SPLIT_NO_EMPTY);
6. }
8. function break_sentence($text){ //分割句子 英文的句号后面必须有空格
9. $re = '/# Split sentences on whitespace between them.
10. (? [.!?] # Either an end of sentence punct,
11. | [.!?][\'"] # or end of sentence punct and quote.
12. ) # End positive lookbehind.
13. (? Mr\. # Skip either "Mr."
14. | Mrs\. # or "Mrs.",
15. | Ms\. # or "Ms.",
16. | Jr\. # or "Jr.",
17. | Dr\. # or "Dr.",
18. | Prof\. # or "Prof.",
19. | Sr\. # or "Sr.",
20. # or... (you get the idea).
21. ) # End negative lookbehind.
22. \s+ # Split on whitespace between sentences.
23. /ix';
24. $sentences = preg_split($re, $text, -1, PREG_SPLIT_NO_EMPTY);
25. return $sentences;
26. }
28. function get_sentence($text){ //先分割段落再分割句子 [推荐]
29. $passage = break_passage($text);
30. $return = array();
31. foreach ($passage as $key => $value) $return = array_merge($return, break_sentence($value));
32. return $return;
33. }
35. ?>

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