拆分字符串 C#

Question

I want to split the string on the basis of characters and string like ( , . ; and or though but etc.).
Original string: "This movie is great. I like the story, acting is nice and direction is perfect but music is not good."
Result:
This movie is great
I like the story
acting is nice
direction is perfect
music is not good

I have tried this.

string test = "This movie is great. I like the story, acting is nice and direction is perfect but music is not good.";
var splittC = Regex.Split(test, ",");
foreach(var a in splittC){
    var splittD = Regex.Split(test, "."); 
    foreach(var b in splittD){
       var splittA = Regex.Split(test, "and"); 
    }
}// and so on....

It is taking so much loops.
And if there is no Comma in this string then it will not check other characters. How to solve these problems. Please help.

Answer 1

String.Split allows a string[] parameter.

Try this:

string test = "This movie is great. I like the story, acting is nice and direction is perfect but music is not good.";
var splitVals = test.Split(new string[] { ",", ".", ";", " and ", " or ", " though ", " but ", " etc. "}, StringSplitOptions.RemoveEmptyEntries);

Answer 2

Parsing natural languages is hard because the computer doesn't understand context. If they could, we could talk to them as if they were people.

Sometimes the ands and periods in sentences are not separators, and sometimes sentences don't start with capital letters.

iPhones are great, said Mr. Smith.

"A one and a two and a three and a four." sang the musicians.

To do the job well, I recommend you either

(a) very strictly control the input allowed, or

(b) use a natural language parsing library, such as SharpNLP which is native, or you can call NLTK from C#. NLTK is probably the best but even it sometimes fails. It's also 5 GB in size due to the training data its machine learning requires.

Answer 3

To make this work you need to parse the sentence with a lexical analyser then process the objects produced. Example keyword lexical items are "and", "," etc. The rest of the text in the parsed items between the keyword items can then be concatenated and sent to the output.

Answer 4

try using this simple regex i wrote it may be helpful for you:

var splitRegex=@"\.|\,|\;|(?:\sand\s)|(?:\sor\s)|(?:\sthough\s)|(?:\sbut\s)";
var splittC = Regex.Split(test, splitRegex);
...

the results is: it may need some modifications to work in all situations.

Answer 5

string test = "This movie is great. I like the story, acting is nice and direction is perfect but music is not good.";
var splitVals = test.Split(new string[] 
{   ",", ".", ";", " and ", " or ",
    " though ", " but ", " etc. "
},StringSplitOptions.RemoveEmptyEntries);