Many thanks to everyone.

I'll go with sliding windows but first probably i've got an idea myself, but i don't know if it's correct. My original file is divided in many "paragraphs" every one of them starting with a special line like this

>Header

[download]
What if i load in memory (in a single string?) this chunks that i'm sure they'll fit in memory and work with them one at a time ignoring the \n?

In reply to Re^2: Regexp matching on a multiline file: dealing with line breaks by BlueStarry
in thread Regexp matching on a multiline file: dealing with line breaks by BlueStarry

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