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POIs there a simple method of converting an ordinal numeric string to its matching numeric value?
 

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  1. POIs there a simple method of converting an ordinal numeric string to its matching numeric value?
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    <p>Does anyone know of a method to convert words like "first", "tenth" and "one hundredth" to their numeric equivalent?</p> <p>Samples: "first" -> 1, "second" -> 2, "tenth" -> 10, "hundredth" -> 100</p> <p>Any algorithm will suffice but I'm writing this in C#.</p> <p>EDIT</p> <p>It ain't pretty and only works with one word at a time but it suits my purposes. Maybe someone can improve it but I'm out of time.</p> <pre><code> public static int GetNumberFromOrdinalString(string inputString) { string[] ordinalNumberWords = { "", "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh", "twelfth", "thirteenth", "fourteenth", "fifteenth", "sixteenth", "seventeenth", "eighteenth", "nineteenth", "twentieth" }; string[] ordinalNumberWordsTens = { "", "tenth", "twentieth", "thirtieth", "fortieth", "fiftieth", "sixtieth", "seventieth", "eightieth", "ninetieth" }; string[] ordinalNumberWordsExtended = {"hundredth", "thousandth", "millionth", "billionth" }; if (inputString.IsNullOrEmpty() || inputString.Length &lt; 5 || inputString.Contains(" ")) return 0; if (ordinalNumberWords.Contains(inputString) || ordinalNumberWordsTens.Contains(inputString)) { var outputMultiplier = ordinalNumberWords.Contains(inputString) ? 1 : 10; var arrayToCheck = ordinalNumberWords.Contains(inputString) ? ordinalNumberWords : ordinalNumberWordsTens; // Use the loop counter to get our output integer. for (int x = 0; x &lt; arrayToCheck.Count(); x++) { if (arrayToCheck[x] == inputString) { return x * outputMultiplier; } } } // Check if the number is one of our extended numbers and return the appropriate value. if (ordinalNumberWordsExtended.Contains(inputString)) { return inputString == ordinalNumberWordsExtended[0] ? 100 : inputString == ordinalNumberWordsExtended[1] ? 1000 : inputString == ordinalNumberWordsExtended[2] ? 1000000 : 1000000000; } return 0; } </code></pre>
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    1. USBergi
    1. USsoutarm
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      1. VTUpMod
    2. VO
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    1. CODo you mean, convert something like: `231` to `1 + 30 + 200`?
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      1. USRuel
    2. CO@Ruel, no, I think the OP means 1 -> "first", 10 -> "tenth", 100 -> "one hundredth"
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      1. USKirk Woll
    3. COhow high do you want to go with this?
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      1. USBlackICE
 

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