split large file by string/regex

[Steve Holden]

Martin Dieringer wrote:

> I am trying to split a file by a fixed string.
> The file is too large to just read it into a string and split this.
> I could probably use a lexer but there maybe anything more simple?
> thanks
> m.

Depends on your definition of "simple", I suppose. The problem with 
*not* using a lexer is that you'd have to examine the file in a sequence 
of overlapping chunks to make sure that a regex could pick up all 
matches. For me that would be more complex than using a lexer, given the 
excellent range of modules such as SPARK and PLY, to mention but two.

regards
  Steve
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