JavaScript.srt和清理.srt

Question

我有一个.srt文件，其文本如下：

19

00:01:05 100->00:01:08 820

西班牙这样的国家。另一个因素

20

00:01:08,820 -> 00:01:11,850

考虑一下西班牙海岸的南端

21

00:01:11,850 -> 00:01:15,060

离北非这么近

我已经找到了这段代码，它可以很好地清除信息，但是这段代码保留了初始数字(这些数字可以从一位数到四位数字)。

结果：

19个国家，如西班牙。另一个要考虑的因素是西班牙海岸的南端离北非如此之近

知道怎么移除这些数字吗？

这是我的密码：

 <script>
            document.querySelector('#files').addEventListener('change', (e) => {
                
                let files = e.target.files,
                    i = 0,
                    reader = new FileReader;
            
                
                reader.onload = (e) => {
                    //console.log(files[i].name, e.target.result);
                    var fileName = files[i].name;
                    var text = e.target.result;

                    text = text.replace(/WEBVTT[\r\n]/,"");
                    text = text.replace(/NOTE duration:.*[\r\n]/,"");
                    text = text.replace(/NOTE language:.*[\r\n]/,"");
                    text = text.replace(/NOTE Confidence:.+\d/g,"");
                    text = text.replace(/NOTE recognizability.+\d/g,"");
                    text = text.replace(/[\r\n].+-.+-.+-.+-.+/g,"");
                    text = text.replace(/[\r\n].+ --> .+[\r\n]/g,"");
                    text = text.replace(/.[\r\n]. --> .+[\r\n]/g,"");
                    text = text.replace(/[\n](.)/g," $1");
                    text = text.replace(/[\r\n]+/g,"");
                    text = text.replace(/^ /,"");
                
                    var heading = document.createElement('h3');
                    document.body.appendChild(heading);
                    heading.innerHTML = "Transcript for '" + files[i].name + "'";
                
                    var copyButton = document.createElement('button');
                    document.body.appendChild(copyButton);
                    copyButton.onclick = function() {copyToClip(text,fileName); };
                    copyButton.innerHTML = "Copy transcript";
                    copyButton.className = "copyButton";
                
                    var div = document.createElement('div');
                    document.body.appendChild(div);
                    div.className = "cleanVTTText";
                    div.innerHTML = text;
            
                    //console.log(files[i].name, text);
                    console.log(files[i].name);
                    
                    
                    if (i++ < files.length - 1) {
                        reader.readAsText(files[i]);
                    } else {
                        console.log('done');
                        
                    }
                };
                
                reader.readAsText(files[i]);
            
            }, false);
            
            function copyToClip(str,fileName) {
                function listener(e) {
                e.clipboardData.setData("text/html", str);
                e.clipboardData.setData("text/plain", str);
                e.preventDefault();
                }
                document.addEventListener("copy", listener);
                document.execCommand("copy");
                document.removeEventListener("copy", listener);
                alert("Copied transcript to clipboard:\n'"+fileName+"'");
            };     
            </script>

Answer 1

对于这个问题，添加这一行代码是有效的：

text = text.replace(/\n?\d*?\n?^.* --> [012345]{2}:.*$/mg ,"");  

Answer 2

我没有使用replace，而是提出了一种不同的解决方案，使用split根据换行符拆分字符串，然后得到一个数组，可以在其中任意构造字符串。

​

let text = `19
00:01:05,100 --> 00:01:08,820
countries such as Spain. Another factor to

20
00:01:08,820 --> 00:01:11,850
consider is the southern tip of Spain's coast

21
00:01:11,850 --> 00:01:15,060
being so close to northern Africa could have`
let newtext = text.split('\n').filter(el => el !== '' && !el.includes('-->') && el.match(/[^A-Za-z0-9\-_]/) );
console.log(newtext);
console.log('Just for example:');
console.log(`${newtext[0]} ${newtext[1]} ${newtext[2]}`);

​

参考资料：

• String.prototype.replace()
• Array.prototype.filter()

Answer 3

您可以删除开始一个可选空行的所有文本，然后删除一个只有一个整数的行，最后删除带有时间戳的一行，用"-->“分隔(包括任何终止的换行符)。

可选的WEBVTT行不是原始crt标准的一部分，但可以在相同的路径中删除：

​

function cleanCrt(text) {
    return text.replace(/^(WEBVTT\b.*)?[\r\n]*\d+(?:\r\n?|\n)[\d:,.]* --> [\d:,.]*[\r\n]*/gm, "");
}

const text = `WEBVTT
1
00:00:00,940 --> 00:00:04,630
Donkeys were first domesticated around 6000 years

2
00:00:04,630 --> 00:00:08,620
ago in northern Africa and Egypt, primarily for

3
00:00:08,620 --> 00:00:12,820
their milk and their meat. And around 2000 years

4
00:00:12,820 --> 00:00:15,970
ago, donkeys were used as draft animals, carrying 

5
00:00:15,970 --> 00:00:19,720
silk from the Pacific Ocean to the Mediterranean

6
00:00:19,720 --> 00:00:23,350
along the silk route. This was in return for trade [...]

19
00:01:05,100 --> 00:01:08,820
countries such as Spain. Another factor to

20
00:01:08,820 --> 00:01:11,850
consider is the southern tip of Spain's coast

21
00:01:11,850 --> 00:01:15,060
being so close to northern Africa could have`;

console.log(cleanCrt(text));

​