On 9/16/2017 8:50 PM, Matthias Rebbe via use-livecode wrote:
> Hi,
>
> until today i used always put URL to read a complete file into memory. But
> now i have to process really large text files with a size of 900 - 1500 MB.
> I know i can read a file until EOF or so.
>
> But how would i read a file until a line that starts with a certain keyword,
> e.g. mstart. I need to read until the line before that line which starts with
> mstart.
> And then read from that “mstart” line until the next line before “mstart”.
> Do i have to read line by line and check if the line starts with that keyword
> or is there also an other way?
>
> Maybe i am thinking to complicated.
>
Why can you not use the
read from file tFilePath until "mstart"
of
read from {file /pathName/ | stdin} [at /start/] {until {/string/ | end
| EOF | empty} | for /amount/ [/chunkType/]} [in /time/]
If you need to back up to reread the "mstart" string you can then use
Seek to adjust the read position if needed.
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