Разделение строки с указанной строкой без разделителя с текстом в середине

Question

Это продолжение с постом - Разделение строки с указанной строкой без разделителя

Вариант использования # 1: Когда searchedText начинается / или заканчивается (смотреть) , если значение фрагментов пустое, я заменяю на searchText, и оно работает

string watch = "Arrests as cops bust $100m money-laundering gang";
string searchedText = "Arrests as cops bust $100m";
string[] fragments = watch.Split(new string[] { searchedText }, StringSplitOptions.None);

Вариант использования # 2: когда searchedText находится между (наблюдать), как справиться с этим сценарием ниже код?

//This loop will execute only two times because it can have maximum 2 values, issue will
 //come when searched value is in middle (loop should run 3 times) as for the searched value I have to apply different logic (like change background color of the text)
 // and don't change background color for head and tail
 // How do I insert searched value in middle of [0] and [1] ??

 string watch = "Arrests as cops bust $100m money-laundering gang";
 string searchedText = "cops bust";

Полный код:

foreach (SharedStringItem sharedString in sharedStrings)
{
    string innerText = sharedString.InnerText; // This contains complete line (watch)

    if (innerText.IndexOf(searchText, StringComparison.OrdinalIgnoreCase) >= 0)
    {
        sharedString.RemoveAllChildren(); // Remove complete line from spreadsheet because we have to make it again as searched text needs to be highlighted 
        // Split the line so it will give blank for searched text and remaining line 
        string[] fragments = innerText.Split(new string[] { searchText }, StringSplitOptions.None);

        // loop through both words/line
        foreach (var item in fragments)
        {
             DocumentFormat.OpenXml.Spreadsheet.Text text = null;

             // If item is blank append the search text else append the remaining line /word
             if(string.IsNullOrEmpty(item))
                 text = new DocumentFormat.OpenXml.Spreadsheet.Text((item != "" ? " " : String.Empty) + searchText);
             else
                 text = new DocumentFormat.OpenXml.Spreadsheet.Text((item != "" ? " " : String.Empty) + item);

             text.Space = SpaceProcessingModeValues.Preserve;

             // New Run needs to be created for each splitted line/word, run is like a row in spreadsheet
             // You cannot create a single run because you need to take care of searched text as it needs to be highlighted before adding to the row
             Run run = new Run();
             run.Append(text);

             // This code should only be executed for searched text
             if (searchText.Equals(text.InnerText, StringComparison.Ordinal))
             {
                 if (run.RunProperties == null)
                     run.RunProperties = new RunProperties();

                 run.RunProperties.Append(new Color { Rgb = "008000" });
                 run.RunProperties.Append(new DocumentFormat.OpenXml.Spreadsheet.Bold());

             }

             // This line add individual run (Example -> Arrests as + <highlight searched text> + remaining text
            sharedString.Append(run);
        }
    }
}


Case : It does not work

seachedText = merrylands
watch = "httdailytelegraph.com.au/newslocal/parramatta/trio-charged-over-alleged-100m-money-laundering-syndicate-at-merrylands-guildford-west/news-story/92ba3163ce58ad8b49989131fa7a5d8e"

Answer 1

Обновлено: вы можете попробовать это

        string text = "Trio charged over alleged $100m money laundering syndicate at Merrylands, Guildford West";
        string searchtext = "charged over";
        searchtextPattern =  "(?=" + Regex.Escape(searchtext) + ")";

        string[] fragments= Regex.Split(text, searchtextPattern);
        //fargments will have two elements here
        // fragments[0] - "Trio"
        // fragments[1] - "charged over alleged $100m money laundering syndicate at Merrylands, Guildford West"

, теперь вы можете снова разделить фрагмент, в котором есть текст для поиска, то есть фрагменты 1 в этом случае. см. код ниже

            var stringWithoutSearchText = fragments[1].Replace(searchtext, string.Empty);

Вам необходимо проверить, содержит ли каждый фрагмент текст для поиска или нет. Вы можете сделать это с помощью фрагментов. добавить ниже проверить там

     foreach (var item in fragments)
     { 
        if (item.Contains(searchtext))
        { 
          string stringWithoutSearchText = item.Replace(searchtext, string.Empty);
        }
     }

Я пытался вписать его в ваш код. Вы можете попробовать что-то вроде этого

foreach (SharedStringItem sharedString in sharedStrings)
        {
            string innerText = sharedString.InnerText; // This contains complete line (watch)

            if (innerText.IndexOf(searchText, StringComparison.OrdinalIgnoreCase) >= 0)
            {
                sharedString.RemoveAllChildren(); // Remove complete line from spreadsheet because we have to make it again as searched text needs to be highlighted 
                                                  // Split the line so it will give blank for searched text and remaining line 

                var searchtextPattern = "(?=" + Regex.Escape(searchText) + ")";

                string[] fragments = Regex.Split(innerText, searchtextPattern);

                // loop through both words/line
                foreach (var item in fragments)
                {
                 if (!string.IsNullOrEmpty(item))
                    {

                        //It will check whether the item contains search string or not 

                        if (item.Contains(searchtext))
                        {
                            // now GetRun() method called two times here

                            string stringWithoutSearchText = item.Replace(searchtext, string.Empty);
                            // in your example method argument will be  "charged over"
                            var run = GetRun(new DocumentFormat.OpenXml.Spreadsheet.Text(" " + searchtext));
                            //this code will only execute for search text
                            if (run.RunProperties == null)
                                run.RunProperties = new RunProperties();

                            run.RunProperties.Append(new Color { Rgb = "008000" });
                            run.RunProperties.Append(new DocumentFormat.OpenXml.Spreadsheet.Bold());

                            sharedString.Append(run);
                            // in your example method argument will be  "alleged $100m money laundering syndicate at Merrylands, Guildford West"
                            if (!string.IsNullOrEmpty(stringWithoutSearchText))
                                sharedString.Append(GetRun(new DocumentFormat.OpenXml.Spreadsheet.Text(" " + stringWithoutSearchText)));
                        }
                        else
                        {
                            //in your example method argument "will be Trio"
                            sharedString.Append(GetRun(new DocumentFormat.OpenXml.Spreadsheet.Text(" " + item)));
                        }
                    }
                }
            }
        }

ваш метод GetRun будет выглядеть следующим образом

 private Run GetRun(DocumentFormat.OpenXml.Spreadsheet.Text text)
    {
        text.Space = SpaceProcessingModeValues.Preserve;

        // New Run needs to be created for each splitted line/word, run is like a row in spreadsheet
        // You cannot create a single run because you need to take care of searched text as it needs to be highlighted before adding to the row
        Run run = new Run();
        run.Append(text);
        return run;
    }

case 2:

//if search text is at end
string watch = "Bitcoin ATMs Highlight Flaws in EU Money Laundering Rules";
string searchtext = "Money Laundering Rules";
//fragment of above string by using Regex.Split will be like 
// fragments[0] - "Bitcoin ATMs Highlight Flaws in EU"
// fragments[1] - "Money Laundering Rules"

case 3:

//if search text is at start
string watch = "Money Laundering Rules Bitcoin ATMs Highlight Flaws in EU";
string searchtext = "Money Laundering Rules";
//fragment of above string by using Regex.Split will be like 
// fragments[0] - ""
// fragments[1] - "Money Laundering Rules Bitcoin ATMs Highlight Flaws in EU"

отметьте эти три случая в приведенном выше коде

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