Excluding Text Inside Arrays

Programming Questions

bourdonpr..

in Programming Questions • 1 year ago

Hello

How is it possible to exclude specific text symbols that appear inside a string in an array?

I want to know if it is possible to exclude specific symbols and leave the array item as it is.

Also, how can we remove all text within two specific symbols? As in array item two in the following example, how can I remove everything between < ... >

Many thanks!

String[] manyLines = {

"one.%^&", "two <45624g*&4y3yYRERt%$$^>", "three!@£$%"

};

for (int i = 0; i < manyLines.length; i++) {

println(manyLines[i]);

//prints one.%^&

// two <45624g*&4y3yYRERt%$$^>

// three!@£$%

}

Replies(4)

bourdonpr..

Re: Excluding Text Inside Arrays

1 year ago

Ok for the first part I did:

String manyLines = "one.%^& two <45624g*&4y3yYRER%$$^> three!@£$%";

String[] list = splitTokens(manyLines, ".%^&!@£$%<45624g*&4y3yYRER%$$^>" );

for (int i = 0; i < list.length; i++) {

println(list[i]);

}

However, I can't find the second part. That is, how I remove text from one specific symbol to another?

tfguy44

Re: Excluding Text Inside Arrays

1 year ago

Creative use of String.length(), String.indexof(), and string.substring():

String data = "I love[START] the horrible weather in the [STOP] fall. It makes me feel[START] TERRIBLE! I hate anyone who is [STOP] happy.";
String findStart = "[START]";
String findStop = "[STOP]";
println( data.indexOf( findStart ) );
while( data.indexOf( findStart ) >= 0 ){
data = data.substring( 0, data.indexOf( findStart ) ) + data.substring( data.indexOf( findStop ) + findStop.length(), data.length() );
}
println( data );

PhiLho

Re: Excluding Text Inside Arrays

1 year ago

Regular expressions are very useful for such task:

String[] manyLines = {
"one.%^&", "two <45624g*&4y3yYRERt%$$^>", "three!@£$%"
};
String toExclude = "[.%^&*$!@£]"; // Or less specific, select non-alpha or non-alphanumeric chars
// Everything between the angle brackets, ending at the first closing one
String inAngleBrackets = "<.*?>";
for (int i = 0; i < manyLines.length; i++) {
// Remove stuff between the angle brakets
manyLines[i] = manyLines[i].replaceAll(inAngleBrackets, "");
// Remove the remaining chars
manyLines[i] = manyLines[i].replaceAll(toExclude, "");
}
for (int i = 0; i < manyLines.length; i++) {
println(manyLines[i]);
}
exit();

bourdonpr..

Re: Excluding Text Inside Arrays

1 year ago

Indeed, REs are a great tool, but can be very scary too!!!

Thanks for the tips btw!

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