Find text from end ( Text file ) !?

[saricnet]

Hello, I need solution to search text from end to beginning in text file ( not from beginning to end ) using String.Find ?!

I have a big (mb) log file and are important to me last lines of text file ( goes much faster searches )

Regards

[HobbsyJr]

TextFileStr = TextFile.ReadToString(filename);

FindPos = String.ReverseFind(TextFileStr, searchparameter, startposition, casesensitive);

if FindPos ~= -1 then
        Dialog.Message("Found", "Found searchparameter at " .. FindPos);
end

Does that help?

[saricnet]

No it did not help and this is how it looks

local test = assert(io.open("C:\\test.txt", "rb"))
local testdata = test:read("*all")

startposition = 1;
searchparameter = "test";

TextFileStr = TextFile.ReadToString(testdata);

FindPos = String.ReverseFind(TextFileStr, searchparameter, startposition, casesensitive);

if FindPos ~= -1 then
Dialog.Message("Found", "Found searchparameter at " .. FindPos);
end

[Shrek]

If you are searching for a word backwards then you have to first make the word you are searching for backwards.

If its the last line you are after, or the last lines, it might be easier to split the string to a table by line and work from there.

[saricnet]

I need searching for a word backwards (ThisText) from text file !

Example:

ThisText
word 12234
word link
word aaaaaaa
word ThisText
dsdsd ofdofdkfd

How do I search starts from the end of ?

[saricnet]

Any help ?

[Imagine Programming]

Look up String.ReverseFind in manual.

[saricnet]

Thanks, working !!!

[Cybergraph]

Thanks, working !!!

Why don't read users' posts?

TextFileStr = TextFile.ReadToString(filename);

FindPos = [B]String.ReverseFind[/B](TextFileStr, searchparameter, startposition, casesensitive);

if FindPos ~= -1 then
        Dialog.Message("Found", "Found searchparameter at " .. FindPos);
end

[HobbsyJr]

Cheers Cyber