I'm trying to use a regex to split a chunk of Chinese text into sentences. For my purposes, sentence delimiters are:
- the fullwidth full stop 。(0x3002)
- the fullwidth question mark ?(0xFF1F)
- the fullwidth exclamation mark !(0xFF01)
Now, let's say my $str is this:
$str = "你好。你好吗? 我是程序员,不太懂这个我问题,希望大家能够帮忙!一起加油吧!";
I use preg_split with these parameters:
$str2 = preg_split("/([\x{3002}\x{FF01}\x{FF1F}])/u",$str,PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
$str2 is now an array that looks like this:
array(3) { [0]=> string(6) "你好" [1]=> string(9) "你好吗" [2]=> string(91) " 我是程序员,不太懂这个我问题,希望大家能够帮忙!一起加油吧!" }
However, the expected output is:
[0] "你好。"
[1] "你好吗?"
[2] "我是程序员,不太懂这个我问题,希望大家能够帮忙!"
[3] "一起加油吧!"
As you can see, there are two problems: this does not process exclamation marks properly, and second, my fullwidth full stop and fullwidth question marks vanish. I'd expect delim_capture to keep them. I've been looking at this code for so long I can't possibly figure out what the problem is anymore. I would very much appreciate suggestions.