[Kst] Re: branches/work/kst/portto4/kst/src/datasources/ascii

[Brisset, Nicolas]

Hi Peter,

> SVN commit 1216727 by kuemmel:
> 
> AsciiSource: Add option to speedup by a priori information of data.
> When columns have ALWAYS the same with skip the searching for a column
> start after it was found the first time.
Could you elaborate on that a bit? It sounds like a good idea, but I
don't have time to look at the code in detail and I don't exactly
understand what should be constant to be able to use this option:
- the type of comment delimiter
- the type of column delimiter 
- the number of characters per column (i.e. columns should be
fixed-width)
- the position of the first character of the number to read (including
sign), i.e. what happens if the numbers are always somewhere within a
column of a given width, but not always left-aligned on the column
boundary?
- ...

Fixed-width columns used to be optimized in the past, and that's why
there is this option in the current GUI. As that already exists, you
probably mean something else. But again, this is not completely clear to
me.

Nicolas


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