How can seperate binary file from text file

[Imants]

I just want to know if there is such a method in Lazarus or what would be principles to. So I could write code myself.

[marcov]

Maybe you should explain better what you mean. The difference between "text" and "binary" is not absolute (e.g. in some cases people see text in a different encoding as binary), so you need to define criteria.

[Imants]

In my opinion Text files are files where is stored text which normal people can read. It can be UTF8 file (I know some systems treat it as binary file) or ASCII file.
And binary files are files where are stored binary data like picture files, music files, video files.

[theo]

Either by filename extension or by file signature:

http://www.garykessler.net/library/file_sigs.html

[marcov]

In my opinion Text files are files where is stored text which normal people can read.

That is dependant on the tool you view it with. If you display a file in the wrong codepage, it might look like binary gibberish.

Same for e.g. UTF-16 in a 1-byte encoding viewer.

Moreover, binary protocols might look largely like text (e.g. because the comment field of a file full of binary records is by far the greatest part, and is text)

And binary files are files where are stored binary data like picture files, music files, video files.

Determining _WHAT_ is in a binary file is very, very hard. The only workable solution is binarry is NOT text, and then test for an handful of specific formats you are interested in.

[HiFi]

Either by filename extension or by file signature:

http://www.garykessler.net/library/file_sigs.html

Yep that seems quite self explanatory. Cheers for that.