Need a _FileInsert function or udf

[flyingboz]

I'm dealing w/ some large text files, and need a methodology to insert /replace text in an arbitrary location within the file. I've searched the forum, but have not seen a methodology to insert or replace text at an arbitrary location within a file that does not depend on reading the file into memory first.

While _FileWriteToLine() is useful w/ small files, the need to read the file into memory before editing it imposes an unacceptable performance hit in my situation.

I'm hoping that someone has a DllCall() for this capability lying around, and would be happy to post what they've got, or I can start poking around at MSDN to try to grow my own.

[randallc]

Hi,

See link in my signature "TailRW.au3"; I fixed larry's dll call to make it; make your own if you use his APIread/write

Mine doesn't only do "tail read write"

; also wites to lines numbered either from end or start, quicker depending where in the file you are writing, and inserts or overwrites;

"insert" is quicker if you don't adjust line length [it will either pad or truncate if you use that option]

Best, randall