I have a unit in which I'm parsing a large text file.

I have around 50 (or more!) IF statements as below:

if Pos(' Center Point',OdReadstrings.Strings[i])>0 then val+=',PT='+getParam(PChar(OdReadstrings.Strings[i])) else if Pos(' Custom Scale',OdReadstrings.Strings[i])>0 then val+=',SC='+getParam(PChar(OdReadstrings.Strings[i])) else if Pos(' Check',OdReadstrings.Strings[i])=1 then val+=',FZ='+getParam(PChar(OdReadstrings.Strings[i])) else if Pos(' Min Extents',OdReadstrings.Strings[i])>0 then val+=',MN='+getParam(PChar(OdReadstrings.Strings[i])) else if Pos(' Max Extents',OdReadstrings.Strings[i])>0 then etc, etc.

No error is generated from this code, per se, but on closing the programme there is an External SIGSEVV genterated in lclrescache.pas at line 186.

The offending line:

Cache.RemoveItem(Self);

Can anyone see what's going on here? Alternatively, is there a better way of parsing a large text file for phrases?

Many thanks,

Dave Coventry
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I see no relationship to your code. Probably it is a side effect of a destroyed heap.
Why do you think that the the above Ifs causes lclrescache to crash?

Can anyone see what's going on here? Alternatively, is there a better way of parsing a large text file for phrases?

Fetch the string only once:
s:=OdReadstrings.Strings[i]
if Pos('  Center Point',s)>0 then
...

Even faster:
Parse the line for tokens and use hash maps.

Mattias

Appologies!

Sent to the wrong list, dammit :blush:

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Ooops. No, it was the right list.

The Postgres User's list is also called "General", so I thought I'd confused the two.

More embarrassment....

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Thanks for the reply, Mattias.

I can't either, but if I remove the code from the unit, the crash no longer occurs.

Fetch the string only once:

I'll look into that. Thanks.

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