438 lines
22 KiB
C#
438 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace AdvertsingProfitControl
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{
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/// <summary>
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/// Contains methods that assist with managing ad item names.
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/// </summary>
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internal static class TextFormat
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{
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//private static readonly FrmLogConsole LogConsole = FrmLogConsole.GetStaticInstance;
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/// <summary>
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/// Formats an ad item's name / text into a standard format so as to help reduce redundancy in the database.
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/// </summary>
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/// <param name="adItemText">The ad item's name to be formatted.</param>
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/// <param name="preserveAcronyms">Whether or not to preserve case on abbreviations.</param>
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/// <returns>A cleaned up and formatted version of the ad item text.</returns>
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public static string FormatAdItemText(string adItemText, bool preserveAcronyms = false)
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{
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//Trim all beginning and trailing whitespace characters to start.
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adItemText = adItemText.Trim();
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var abbreviations = new List<string>();
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var words = new List<string>();
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var isInsideBrackets = false;
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//This just makes the code a bit more readable rather then doing "adItemText[currentCharacter - 1]" to access the previous character.
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var isPreviousCharWhiteSpace = false;
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var cleanedInputString = "";
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var lastnumberStartingIndex = -1;
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//Create an array of brackets to test for, and either balance out or simply ignore the extras.
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char[] openBrackets = { '(', '<', '{', '[' };
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char[] closedBrackets = { ')', '>', '}', ']' };
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for (var currentCharacter = 0; currentCharacter < adItemText.Length; currentCharacter++)
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{
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//Capitalize the first character in the string and move to the next character.
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if (currentCharacter == 0)
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{
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cleanedInputString += char.ToUpperInvariant(adItemText[0]);
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continue;
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}
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//IF the current character is a whitespace character, mark it as such, add to the temporary string, and move on to the next.
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if (char.IsWhiteSpace(adItemText[currentCharacter]))
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{
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//Check for more then one space in a row.
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if (isPreviousCharWhiteSpace)
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{
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//If more then one space is found to be in a row, then ignore it and move onto the next character.
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continue;
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}
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//IF the current character is whitespace, then mark it and move onto the next loop.
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isPreviousCharWhiteSpace = true;
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lastnumberStartingIndex = -1; //reset
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cleanedInputString += adItemText[currentCharacter];
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continue;
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}
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//IF the current character is an open bracket then mark it so we're inside brackets and move to the next character.
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if (openBrackets.Contains(adItemText[currentCharacter]))
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{
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if (isInsideBrackets)
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{
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//If we are already inside of brackets then don't add anymore to the string just continue.
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continue;
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}
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isInsideBrackets = true;
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//Just gonna force parenthesis for now.
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cleanedInputString += '(';
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continue;
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}
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//IF the current character is a closing bracket then mark it as such and move to the next character (if any).
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if (closedBrackets.Contains(adItemText[currentCharacter]))
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{
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//IF we're not inside brackets then there is an imbalance so discard this parenthesis.
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if (!isInsideBrackets)
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{
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continue;
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}
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//Just gonna force parenthesis for now.
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cleanedInputString += ')';
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lastnumberStartingIndex = -1; //reset
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//Clear the current working word.
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isInsideBrackets = false;
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continue;
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}
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//IF the current character is not a number and the previous character is a white space character
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//then capitalize the current character and add it to the string.
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if (!char.IsNumber(adItemText[currentCharacter]) && isPreviousCharWhiteSpace)
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{
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//Check to see the length of the string and determine if the word with the number needs to be capitalized.
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if (char.IsNumber(cleanedInputString[cleanedInputString.Length - 2]))
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{
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BuildAbbreviationsAndWordsLists(adItemText, currentCharacter, out abbreviations, out words);
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//Remove the last space if there are any abbreviations or words found.
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if (abbreviations.Count > 0 || words.Count > 0)
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{
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cleanedInputString = cleanedInputString.Remove(cleanedInputString.Length - 1, 1);
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}
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//Begin checking to see how to place these items back into the final string.
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if (abbreviations.Count >= 1 && words.Count == 0)
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{
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if (!isInsideBrackets)
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{
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cleanedInputString += abbreviations[0] + ")";
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if (lastnumberStartingIndex != -1)
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{
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cleanedInputString = cleanedInputString.Insert(lastnumberStartingIndex, "(");
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}
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}
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else
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{
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cleanedInputString += abbreviations[0] + ")";
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}
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break;
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}
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if (abbreviations.Count >= 1 && words.Count == 1)
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{
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cleanedInputString += abbreviations[0] + " " + words[0];
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//Clear all braces since this format doesn't allow for braces in this set up.
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cleanedInputString = cleanedInputString.Replace("(", "");
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break;
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}
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if (abbreviations.Count >= 0 && words.Count >= 1)
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{
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if (abbreviations.Count != 0)
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{
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cleanedInputString += abbreviations[0];
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}
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cleanedInputString = words.Aggregate(cleanedInputString, (current, word) => current + (" " + word));
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//Clear all braces since this format doesn't allow for braces in this set up.
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cleanedInputString = cleanedInputString.Replace("(", "");
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break;
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}
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}
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//If all else fails simply assume this is the beginning of a new word and capitalize it.
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cleanedInputString += char.ToUpperInvariant(adItemText[currentCharacter]);
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}
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//However, if the current character is not a number but the previous character is NOT a white space character
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//then run a few checks before adding it to the string.
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else if (!char.IsNumber(adItemText[currentCharacter]) && char.IsLetter(adItemText[currentCharacter]))
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{
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//IF the previous character is a number...
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if (char.IsNumber(cleanedInputString[cleanedInputString.Length - 1]))
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{
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//Check to see the length of the string and determine if the word with the number needs to be capitalized.
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BuildAbbreviationsAndWordsLists(adItemText, currentCharacter, out abbreviations, out words);
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//Check to see if braces are necessary for the format we're going for.
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if (abbreviations.Count >= 1 && words.Count == 0)
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{
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if (!isInsideBrackets)
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{
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cleanedInputString += abbreviations[0] + ")";
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if (lastnumberStartingIndex != -1)
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{
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cleanedInputString = cleanedInputString.Insert(lastnumberStartingIndex, "(");
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}
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}
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else
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{
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cleanedInputString += abbreviations[0] + ")";
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}
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break;
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}
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if (abbreviations.Count >= 1 && words.Count == 1)
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{
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cleanedInputString += abbreviations[0] + " " + words[0];
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//Clear all braces since this format doesn't allow for braces in this set up.
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cleanedInputString = cleanedInputString.Replace("(", "");
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break;
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}
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if (abbreviations.Count >= 0 && words.Count >= 1)
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{
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if (abbreviations.Count != 0)
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{
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cleanedInputString += abbreviations[0];
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}
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cleanedInputString = words.Aggregate(cleanedInputString, (current, word) => current + (" " + word));
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//Clear all braces since this format doesn't allow for braces in this set up.
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cleanedInputString = cleanedInputString.Replace("(", "");
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break;
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}
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}
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else if (char.IsLetter(adItemText[currentCharacter - 1]) || adItemText[currentCharacter - 1] == '\'')
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{
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cleanedInputString += char.ToLowerInvariant(adItemText[currentCharacter]);
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}
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}
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//IF a number is found, and we're not inside brackets, check to see if there is an opening parenthesis and if there aren't create one.
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if (char.IsNumber(adItemText[currentCharacter]))
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{
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cleanedInputString += adItemText[currentCharacter];
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if (lastnumberStartingIndex == -1)
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{
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lastnumberStartingIndex = cleanedInputString.Length - 1; //Non-index based system, minus one for the index
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}
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}
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//Check for any allowed punctuation.
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if (adItemText[currentCharacter] == '\'')
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{
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cleanedInputString += adItemText[currentCharacter];
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}
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//Check if the previous character is an "'".
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else if (cleanedInputString[cleanedInputString.Length - 1] == '\'')
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{
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cleanedInputString += adItemText[currentCharacter];
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}
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//Since whitespace booleans are handled above, set the boolean for white spaces false.
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//IF we've made it this far that means the current character is not a white space character.
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isPreviousCharWhiteSpace = false;
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//IF we're at the end of the string and we're inside brackets then balance out the open bracket.
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if ((currentCharacter + 1) == adItemText.Length && isInsideBrackets)
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{
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cleanedInputString += ')';
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}
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//removedCharacterOffset++;
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}
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//#if DEBUG
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// if (abbreviations.Count > 0)
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// {
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// LogConsole.WriteToLog(FrmLogConsole.Level.Debug, "Detected abbreviation(s) in input string \"" + adItemText + "\":");
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// foreach (var abbreviation in abbreviations)
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// {
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// LogConsole.WriteToLog(FrmLogConsole.Level.Debug, abbreviation);
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// }
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// }
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// else if (words.Count > 0)
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// {
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// LogConsole.WriteToLog(FrmLogConsole.Level.Debug, "Detected words(s) in input string \"" + adItemText + "\":");
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// foreach (var word in words)
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// {
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// LogConsole.WriteToLog(FrmLogConsole.Level.Debug, word);
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// }
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// }
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//#endif
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return cleanedInputString;
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}
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/// <summary>
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/// Infrastructure for the TextFormat class, not to be used with external code.
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/// Parses the full ad item text, starting at the specified index, for abbreviations and words.
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/// Once either of these objects have been found they are added to their respective Lists
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/// and returned as outed variables to the calling code. Preserving acronyms is off by default
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/// but if turned on keeps the cases of abbreviations as they are.
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/// </summary>
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/// <param name="adItemText">The full text to be parsed.</param>
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/// <param name="startingIndex">Where to start looping through the characters in the text.</param>
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/// <param name="abbreviations">A list of abbreviations that were found in the text.</param>
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/// <param name="words">A list of words found in the text.</param>
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/// <param name="preserveAcronyms">Whether or not to force normal casing rules on abbreviations.</param>
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private static void BuildAbbreviationsAndWordsLists(string adItemText, int startingIndex, out List<string> abbreviations, out List<string> words, bool preserveAcronyms = false)
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{
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abbreviations = new List<string>();
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words = new List<string>();
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var currentWorkingString = "";
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//Starting at the next character, spin through and find all words or abbreviations that are separated by white space.
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for (var i = startingIndex; i < adItemText.Length; i++)
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{
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//If the current character is a letter and if so add it to the current working string.
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if (char.IsLetter(adItemText[i]))
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{
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currentWorkingString += adItemText[i];
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}
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//Check for the current character being a white space, showing the end of a word or abbreviation.
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else if (char.IsWhiteSpace(adItemText[i]))
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{
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//Block against null values from messing things up.
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if (string.IsNullOrEmpty(currentWorkingString)) continue;
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//The end of what ever word we were on has been reached, so check to see what the string is.
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if (IsWord(currentWorkingString))
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{
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words.Add(currentWorkingString);
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}
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else
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{
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abbreviations.Add(currentWorkingString);
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}
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//Clear the current working string to start on the next.
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currentWorkingString = "";
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}
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//Run a check to see if this is the last character in the string.
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if ((i + 1) != adItemText.Length) continue;
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//The end of whatever word we were on has been reached, so check to see what the string is.
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if (IsWord(currentWorkingString))
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{
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words.Add(currentWorkingString);
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}
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else
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{
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abbreviations.Add(currentWorkingString);
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}
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}
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//Clean the cases of the abbreviations and words.
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for (var i = 0; i < abbreviations.Count; i++)
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{
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//If preserve acronyms is set to true then just leave the cases of the abbreviations alone.
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if (!preserveAcronyms)
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{
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abbreviations[i] = abbreviations[i].ToLowerInvariant();
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}
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}
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for (var i = 0; i < words.Count; i++)
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{
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words[i] = words[i].ToLowerInvariant();
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words[i] = CapitalizeFirstLetter(words[i]);
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}
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}
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/// <summary>
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/// Determines whether or not a string is an abbreviation or a word.
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/// A word is defined as being at least three (3) characters long and having
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/// at least one (1) vowel. Where as an abbreviation is defined as less then
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/// three (3) characters long but has at least one (1) character, whether or not
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/// the string that is two (2) or one (1) characters long has a vowel is meaningless
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/// or being exactly three characters long but having zero (0) vowels.
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/// </summary>
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/// <param name="text">The text to determine whether or not its a word.</param>
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/// <returns>A boolean indicating whether or not the text is a word.</returns>
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public static bool IsWord(string text)
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{
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if (string.IsNullOrEmpty(text)) return false;
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var isWord = true;
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//Most abbreviations do not have vowels in them so check to see if the "abbreviation"
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//isn't just a short word like "Box", as opposed to "lbs".
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char[] vowels = { 'a', 'e', 'i', 'o', 'u', 'y' };
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//Count the number of vowels the word has.
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var vowelCount = text.Count(x => vowels.Contains(x));
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//IF the string is exactly three (3) characters long and has more then zero (0) vowels then it is considered a word.
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if (text.Length == 3 && vowelCount == 0)
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{
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isWord = false;
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}
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else if (text.Length < 3)
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{
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isWord = false;
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}
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//Return the verdict.
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return isWord;
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}
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public static bool TryParseBinCount(string inputText, out double binCount, out string binCountString)
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{
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if (inputText.Length == 0)
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{
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binCountString = string.Empty;
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binCount = 0;
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return false;
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}
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var success = false;
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binCountString = string.Empty;
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var number = new StringBuilder();
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var binString = new StringBuilder(); //
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var characterReached = false;
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for (var i = 0; i < inputText.Length; i++)
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{
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if (char.IsNumber(inputText[i]) && !characterReached)
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{
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number.Append(inputText[i]);
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continue;
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}
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if (inputText[i] == '-' || inputText[i] == '.')
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{
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number.Append(inputText[i]);
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continue;
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}
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if (!char.IsLetter(inputText[i])) continue;
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binString.Append(inputText[i]);
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characterReached = true;
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}
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if (number.ToString() == string.Empty)
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{
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binCount = 0;
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return false;
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}
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if (double.TryParse(number.ToString(), out binCount))
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{
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if (binString.ToString().Equals("bin", StringComparison.InvariantCultureIgnoreCase) ||
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binString.ToString().Equals("bins", StringComparison.InvariantCultureIgnoreCase))
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{
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if (binCount < 1 || binCount > 1)
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{
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binCountString = binCount + " Bins";
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}
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else
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{
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binCountString = "1 Bin";
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}
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success = true;
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}
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}
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return success;
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}
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/// <summary>
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/// Capitalizes the first letter of the text sent to this method.
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/// </summary>
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/// <param name="text">The text to be capitalized.</param>
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/// <returns>The input text that has the first letter capitalized.</returns>
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public static string CapitalizeFirstLetter(string text)
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{
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if (string.IsNullOrEmpty(text)) return string.Empty;
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return text.First().ToString().ToUpperInvariant() + string.Join("", text.Skip(1));
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}
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/// <summary>
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/// Add spaces between all words that have capital letters.
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/// </summary>
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/// <param name="text">The column header text to be made presentable.</param>
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/// <param name="preserveAcronyms">Whether or not to do anything with text that's in all caps.</param>
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/// <returns>The text with spaces.</returns>
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public static string AddSpacesToSentence(string text, bool preserveAcronyms)
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{
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//http://stackoverflow.com/questions/272633/add-spaces-before-capital-letters
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if (string.IsNullOrWhiteSpace(text))
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return string.Empty;
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var newText = new StringBuilder(text.Length * 2);
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newText.Append(text[0]);
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for (var i = 1; i < text.Length; i++)
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{
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if (char.IsUpper(text[i]))
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if ((text[i - 1] != ' ' && !char.IsUpper(text[i - 1])) ||
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(preserveAcronyms && char.IsUpper(text[i - 1]) &&
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i < text.Length - 1 && !char.IsUpper(text[i + 1])))
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newText.Append(' ');
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newText.Append(text[i]);
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}
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return newText.ToString();
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}
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}
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}
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