werrpy · May 19, 2020 02:19
diff --git a/shittytitles.html b/shittytitles.html
 <!doctype html>
 <html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

    <title>Hello, world!</title>
  </head>
  <body>
    <h1>Hello, world!</h1>
    
    <div class="container">
        <div class="form-group">
            <label for="input">Shitty title</label>
            <input type="text" class="form-control" id="input">
        </div>
        
        <div class="form-group">
            <label for="output">Good title</label>
            <input type="text" class="form-control" id="output" readonly>
        </div>
    </div>

    <script>
    
    // Picket.Fences.S03.NTSC.DVD.DD.2.0-CultFilms™
    
    // https://stackoverflow.com/a/10710400
    // get all indexes of ch in str
    function getAllIndexes(str, ch) {
        var indices = [];
        for (var i = 0; i < str.length; i++) {
            if (str[i] === ch) indices.push(i);
        }
        return indices;
    }
    
    // is index in range of str?
    function inRange(str, index) {
        return (index >= 0 && index < str.length);
    }
    
    // https://stackoverflow.com/a/8935675
    function is_numeric(str) {
        return /^\d+$/.test(str)
    }
    
    // https://www.geeksforgeeks.org/how-to-replace-a-character-at-a-particular-index-in-javascript/
    function replaceChar(origString, replaceChar, index) {
        let firstPart = origString.substr(0, index);
        let lastPart = origString.substr(index + 1);
        
        let newString = firstPart + replaceChar + lastPart;
        return newString;
    }
    
    function removeDots(title) {
        // replace dots with spaces that are between:
        // 1) letter and letter
        // 2) number and letter
        // 3) . 4 numbers (.year)
        // 4) 4 numbers and 3 or 4 numbers followed by i or p (year and resolution, 2020.1080p)
        // 5) S 2 numbers . 3 or 4 numbers followed by i or p (season and resolution, S01.720p)
        // 6) 2 letters . number . number (DD.2.0 or AAC.2.0 or DD+.2.0 or DTS-X.7.1)
            
        let newTitle = title;
        
        const indexes = getAllIndexes(title, ".")
        console.log(indexes);
        
        // each dot location
        for (const i of indexes) {
            let before, after;
            
            if (inRange(title, i - 1) && inRange(title, i + 1)) {
                // characters before and after dot
                before = title[i - 1]
                after = title[i + 1]
                
                if (!is_numeric(before) && !is_numeric(after)) {
                    // Case 1: letter and letter
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                } else if (is_numeric(before) && !is_numeric(after)) {
                    // Case 2: number and letter
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                }
            }
            
            // Case 3: . 4 numbers (.year)
            if (inRange(title, i + 5)) {
                after = title.substring(i + 1, i + 5)
                if (is_numeric(after)) {
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                }
            }
            
            // Case 4: 4 numbers and 3 numbers followed by i or p (year and resolution, 2020.720p)
            if (inRange(title, i - 4) && inRange(title, i + 4)) {
                const beforeNum = title.substring(i - 4, i) // ex. 1987
                const afterNum = title.substring(i + 1, i + 4) // ex. 480, 576 or 720
                const afterResolution = title.charAt(i + 4).toLowerCase() // i or p
                
                if (is_numeric(beforeNum) && is_numeric(afterNum) && (afterResolution == "i" || afterResolution == "p")) {
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                }
            }
            
            // Case 5: S 2 numbers . 3 or 4 numbers followed by i or p (season and resolution, S01.720p)
            if (inRange(title, i - 3) && inRange(i + 4)) {
                const beforeNum = title.substring(i - 3, i - 2).toLowerCase() // ex. S
                const seasonNum = title.substring(i - 2, i).toLowerCase() // ex. 01
                
                const afterNum = title.substring(i + 1, i + 4) // ex. 480, 576 or 720
                const afterResolution = title.charAt(i + 4).toLowerCase() // i or p
                
                if (beforeNum == "s" && is_numeric(seasonNum) && (afterResolution == "i" || afterResolution == "p")) {
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                }
            }
            
            // Case 6: 2 letters . number (DD.2.0 or AAC.2.0 or DD+.2.0 or DTS-X.7.1)
            // looking at it from the first dot only
            if (inRange(title, i - 1) && inRange(title, i + 1)) {
                const before = title.substring(i - 1, i).toLowerCase() // ex. DD or AC or D+ or -X
                const after = title.charAt(i + 1) // number
                
                if (!is_numeric(before) && is_numeric(after)) {
                    newTitle = replaceChar(newTitle, " ", i)
                    continue;
                }
            }
        }
        
        return newTitle;
    }
    
    document.addEventListener("DOMContentLoaded", () => {
        // it did
        const input = document.getElementById("input");
        const output = document.getElementById("output");
        
        input.addEventListener('change', (event) => {
            const newTitle = removeDots(event.target.value);
            output.value = newTitle;
        });
    })
    </script>
    
  </body>
 </html>
	<!doctype html>
	<html lang="en">
	<head>
	<!-- Required meta tags -->
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

	<!-- Bootstrap CSS -->
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

	<title>Hello, world!</title>
	</head>
	<body>
	<h1>Hello, world!</h1>

	<div class="container">
	<div class="form-group">
	<label for="input">Shitty title</label>
	<input type="text" class="form-control" id="input">
	</div>

	<div class="form-group">
	<label for="output">Good title</label>
	<input type="text" class="form-control" id="output" readonly>
	</div>
	</div>

	<script>

	// Picket.Fences.S03.NTSC.DVD.DD.2.0-CultFilms™

	// https://stackoverflow.com/a/10710400
	// get all indexes of ch in str
	function getAllIndexes(str, ch) {
	var indices = [];
	for (var i = 0; i < str.length; i++) {
	if (str[i] === ch) indices.push(i);
	}
	return indices;
	}

	// is index in range of str?
	function inRange(str, index) {
	return (index >= 0 && index < str.length);
	}

	// https://stackoverflow.com/a/8935675
	function is_numeric(str) {
	return /^\d+$/.test(str)
	}

	// https://www.geeksforgeeks.org/how-to-replace-a-character-at-a-particular-index-in-javascript/
	function replaceChar(origString, replaceChar, index) {
	let firstPart = origString.substr(0, index);
	let lastPart = origString.substr(index + 1);

	let newString = firstPart + replaceChar + lastPart;
	return newString;
	}

	function removeDots(title) {
	// replace dots with spaces that are between:
	// 1) letter and letter
	// 2) number and letter
	// 3) . 4 numbers (.year)
	// 4) 4 numbers and 3 or 4 numbers followed by i or p (year and resolution, 2020.1080p)
	// 5) S 2 numbers . 3 or 4 numbers followed by i or p (season and resolution, S01.720p)
	// 6) 2 letters . number . number (DD.2.0 or AAC.2.0 or DD+.2.0 or DTS-X.7.1)

	let newTitle = title;

	const indexes = getAllIndexes(title, ".")
	console.log(indexes);

	// each dot location
	for (const i of indexes) {
	let before, after;

	if (inRange(title, i - 1) && inRange(title, i + 1)) {
	// characters before and after dot
	before = title[i - 1]
	after = title[i + 1]

	if (!is_numeric(before) && !is_numeric(after)) {
	// Case 1: letter and letter
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	} else if (is_numeric(before) && !is_numeric(after)) {
	// Case 2: number and letter
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	}
	}

	// Case 3: . 4 numbers (.year)
	if (inRange(title, i + 5)) {
	after = title.substring(i + 1, i + 5)
	if (is_numeric(after)) {
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	}
	}

	// Case 4: 4 numbers and 3 numbers followed by i or p (year and resolution, 2020.720p)
	if (inRange(title, i - 4) && inRange(title, i + 4)) {
	const beforeNum = title.substring(i - 4, i) // ex. 1987
	const afterNum = title.substring(i + 1, i + 4) // ex. 480, 576 or 720
	const afterResolution = title.charAt(i + 4).toLowerCase() // i or p

	if (is_numeric(beforeNum) && is_numeric(afterNum) && (afterResolution == "i" \|\| afterResolution == "p")) {
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	}
	}

	// Case 5: S 2 numbers . 3 or 4 numbers followed by i or p (season and resolution, S01.720p)
	if (inRange(title, i - 3) && inRange(i + 4)) {
	const beforeNum = title.substring(i - 3, i - 2).toLowerCase() // ex. S
	const seasonNum = title.substring(i - 2, i).toLowerCase() // ex. 01

	const afterNum = title.substring(i + 1, i + 4) // ex. 480, 576 or 720
	const afterResolution = title.charAt(i + 4).toLowerCase() // i or p

	if (beforeNum == "s" && is_numeric(seasonNum) && (afterResolution == "i" \|\| afterResolution == "p")) {
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	}
	}

	// Case 6: 2 letters . number (DD.2.0 or AAC.2.0 or DD+.2.0 or DTS-X.7.1)
	// looking at it from the first dot only
	if (inRange(title, i - 1) && inRange(title, i + 1)) {
	const before = title.substring(i - 1, i).toLowerCase() // ex. DD or AC or D+ or -X
	const after = title.charAt(i + 1) // number

	if (!is_numeric(before) && is_numeric(after)) {
	newTitle = replaceChar(newTitle, " ", i)
	continue;
	}
	}
	}

	return newTitle;
	}

	document.addEventListener("DOMContentLoaded", () => {
	// it did
	const input = document.getElementById("input");
	const output = document.getElementById("output");

	input.addEventListener('change', (event) => {
	const newTitle = removeDots(event.target.value);
	output.value = newTitle;
	});
	})
	</script>

	</body>
	</html>