Hi,
is there a faster way to read the number of lines?
MyDatName = "Import.txt"
MyFile = openfile MyDatName
maxlen = 0
while not eof MyFile do
(
maxlen =maxlen + 1
skiptonextline MyFile
)
seek MyFile 0
Print maxlen
Thanks,
Oli “blenderman”
Well, you could read the whole file into a string then filter it by a newline token:
fin = openFile "Thefile.txt"
---this code is straight from the help file---
seek fin #eof
maxlen=filepos fin
seek fin 0
res = readChars fin maxlen errorAtEOF:false
------------------------------------------
lineNums = (filterString res "
").count
close fin
print lineNums
The downside to this method is it doesn’t count empty lines, but that also may be a good thing.
I also have no idea if it’s faster.
fin = openFile "Thefile.txt"
---this code is straight from the help file---
seek fin #eof
maxlen=filepos fin
seek fin 0
res = readChars fin maxlen errorAtEOF:false
------------------------------------------
lineNums = (filterString res "
" [b][b]splitEmptyTokens[/b][/b][b][b]:true[/b][/b]).count
close fin
print lineNums
The SplitEmptyTokens:true option is available in Max 8 and higher and will create empty elements when two tokens are next to each other. It should avoid the above downside.
Thank you erilaz for the new solution and also to Bobo thanks for the optimization. Unfortunatly, the new solution is up to half a minute slower.
Thanks for your Help!
How about a cheat of some sort, just off the top of my head and not tried.
readDelimitedString f “Some string that can’t be found”
Now you are at the end of the file.
seek f ((filePos-100) f)
skiptoNextLine…
How ever in writting this there is know way to know where you are in the file as far as lines go only position I think. Just a thought.
[font=Verdana][/font]
Not sure if this is faster, but here’s an alternative method using .NET:
((dotNetClass "System.IO.File").ReadAllLines "Thefile.txt").count
Cheers,
Martijn
:wip: Oh Yes
MaxCode = 20 Seconds VS .NETcode = 0 Seconds
Thank you Martijn! And thanks for your thougths Paul. I love CgTalk…
Cheers,
Oli “blenderman”
Nice one, that is far better.