Here is utility to strip comments from the PGN file

[Dragan]

I had trouble finding such utility. I know you can use Scid, but I wanted something simple. So I wrote a small program that some of you may find useful.
I use it to strip comments and select only long games from playchessenginegames.pgn.
Here is the link to it:
http://nebula.host-ed.me/StripPgn.html

[jdart]

pgn-extract can do this (use the -C option).

http://www.cs.kent.ac.uk/people/staff/djb/pgn-extract/

--Jon

[Dragan]

Thanks for the info.
pgn-extract seems to be 20 times slower then my utility.
Can it filter by time control?

I also prefer to break new lines only after full moves. Don't like when move is broken in 2 lines.

[Norm Pollock]

Thanks for the info.
pgn-extract seems to be 20 times slower then my utility.
Can it filter by time control?

I also prefer to break new lines only after full moves. Don't like when move is broken in 2 lines.

My utility "trim" almost all you are asking and more. From its readme file:

Code: Select all

"trim" produces an output "pgn" file that puts each "full move" on
the same line while also removing comments, if present. "trim" lets
you set the maximum output width in the "Move" section from 40 to 
100 characters. The default is 76 characters.

"trim" removes comments, nags, variations and major symbolic
annotation symbols (!, !!, ?, ??, !?, ?!, +-, -+, +/-, -/+, +=,
=+, +/=, =/+, =, ~, and N), if present.

If needed, "trim" inserts a space (" ") after a move number.
For example, "1.e4" becomes "1. e4".

"trim" changes any occurrences of numerical castling notation 
("0-0", "0-0-0") to alphabetical ("O-O", "O-O-O").

Syntax: trim filename.pgn

        trim filename.pgn [output_width]

Usage:  trim alpha.pgn

        trim alpha.pgn 60

Output: outR.pgn

Comments"

     1. Execution time is affected by the size of the input "pgn" file.

[Dragan]

LOL
This was exactly what I wanted but couldn't find anywhere.
Now don't add filtering for time control. I don't want to feel like I wasted my time completely

[Adam Hair]

Norm is a big reason why I have not yet learned how to write my own utilities. If there is something I want to do with a pgn or epd, most of the time I can use one or more of his utilities to do it.

[Don]

Thanks for the info.
pgn-extract seems to be 20 times slower then my utility.
Can it filter by time control?

I also prefer to break new lines only after full moves. Don't like when move is broken in 2 lines.

pgn-extract isn't just stripping comments, it's also cleaning up any incorrect PGN so that slows it down.

However it's really fast - so unless you have millions of games it should be fast enough, no?

Don