查找并替换为查找文件

Question

I want to find and replace text in a textfile with a lookup file.

Currently i use the following code to replace a single string:

System.IO.StreamReader objReader;
objReader = new System.IO.StreamReader(someTextFile);
string content = objReader.ReadToEnd();
objReader.Close();

content = content.Replace("Text1", "Replacetext1");

System.IO.StreamWriter objWriter;
objWriter = new System.IO.StreamWriter(someTextFile);
objWriter.Write(content);
objWriter.Close();

I want to use a csv file for lookup. The format of this file is:

Text1, Replacedtext1
Text2, Replacedtext2
Text3, Replacedtext3
etc...

Who can me give some tips?

Thanks

Answer 1

OK Here are some tips:

1) use

string [] allLines = System.IO.File.ReadAllLines("yourLookUpFilePathHere");

it will return all lines in a string array. The same you can do with your file in which you want to make the replacements. Now you can loop through the look up file.

2) At each position / line in the array you can use the method:

string [] partsOfLine = allLines[i].Split('hereYourSeparatorAsChar');

3) now if you have fiddled out the first word you can start a second loop to look for matches in the replacement file and there you can use the line from your code:

allLinesOfReplaceFile[i] = allLinesOfReplaceFile[i].Replace("Text1", "Replacetext1");

I hope you get the drift, if it is still unclear then drop me a comment