This message was edited by porodoro at 2007-1-2 21:16:41

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This message was edited by porodoro at 2007-1-2 21:16:2

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Hi again.
I need a way to read/write alot of data in a file.
Tini doesnt help , because of the 64kb limitation.
Tmemini doesnt help either(8.000 characters per line).

My idea:

I have a function that extracts data from two strings.
for example :

<counter>2</counter>
The function will extract the number "2".

And my question is : Can i use the normal read file funtion to read the data in a temporary string list?
(note:the program will read each line)
Something like this:

list := tstringlist.create
list.clear
while (not EOF) do begin
list.add(readln(f))
end;
or just : list.loadfromfile()

for i=0 to list.count-1 do begin
GET_DATA(list.strings[i],'<counter>','</counter>')
end
list.free

Or its a bad idea ?

: This message was edited by porodoro at 2007-1-2 21:16:41

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: This message was edited by porodoro at 2007-1-2 21:16:2

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: Hi again.
: I need a way to read/write alot of data in a file.
: Tini doesnt help , because of the 64kb limitation.
: Tmemini doesnt help either(8.000 characters per line).
:
: My idea:
:
: I have a function that extracts data from two strings.
: for example :
:
: <counter>2</counter>
: The function will extract the number "2".
:
: And my question is : Can i use the normal read file funtion to read the data in a temporary string list?
: (note:the program will read each line)
: Something like this:
:
: list := tstringlist.create
: list.clear
: while (not EOF) do begin
: list.add(readln(f))
: end;
: or just : list.loadfromfile()
:
: for i=0 to list.count-1 do begin
: GET_DATA(list.strings[i],'<counter>','</counter>')
: end
: list.free
:
: Or its a bad idea ?
:
It is a good idea, if you use the LoadFromFile(). This only works if the file isn't bigger than 2GB. For larger files, you need to use a TStream and process the file while reading.

: : This message was edited by porodoro at 2007-1-2 21:16:41

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: : This message was edited by porodoro at 2007-1-2 21:16:2

---

: : Hi again.
: : I need a way to read/write alot of data in a file.
: : Tini doesnt help , because of the 64kb limitation.
: : Tmemini doesnt help either(8.000 characters per line).
: :
: : My idea:
: :
: : I have a function that extracts data from two strings.
: : for example :
: :
: : <counter>2</counter>
: : The function will extract the number "2".
: :
: : And my question is : Can i use the normal read file funtion to read the data in a temporary string list?
: : (note:the program will read each line)
: : Something like this:
: :
: : list := tstringlist.create
: : list.clear
: : while (not EOF) do begin
: : list.add(readln(f))
: : end;
: : or just : list.loadfromfile()
: :
: : for i=0 to list.count-1 do begin
: : GET_DATA(list.strings[i],'<counter>','</counter>')
: : end
: : list.free
: :
: : Or its a bad idea ?
: :
: It is a good idea, if you use the LoadFromFile(). This only works if the file isn't bigger than 2GB. For larger files, you need to use a TStream and process the file while reading.
:
:
I dont think i;ll ever need 2gb , but thanks for the information..

Something that i forgot.
The max character length per line is 255?(like string)

: Something that i forgot.
: The max character length per line is 255?(like string)
:
Since D3, there are 2 string types: shortstring and longstring. Shortstring is the same as the Pascal string (array of 256 char, with length in 1st char). Longstring is a complex structure capable of containing strings up to 2GB (theoretically). Longstrings are reference counted and have a storage similar to the PChar.

: : Something that i forgot.
: : The max character length per line is 255?(like string)
: :
: Since D3, there are 2 string types: shortstring and longstring. Shortstring is the same as the Pascal string (array of 256 char, with length in 1st char). Longstring is a complex structure capable of containing strings up to 2GB (theoretically). Longstrings are reference counted and have a storage similar to the PChar.
:
Ok thanks for the information