Re: string fanout or stringout after conditional check?

[Jeong Han Lee <citadel.lee@gmail.com>]

Hi,

  For the closing purpose, I would like to reply this list.

  I found the way to do what I need with aSub record. And I've learned 
other things than what I need as usual.
  Anyway, always thank you.

  Han



On 05/18/2017 11:39 PM, Zimoch Dirk (PSI) wrote:
> The guard is not strictly necessary. StreamDevice will not overrun the buffer.
>
> In recent versions I have improved string scanning: for example "%#s" reads strings containing white space.
>
> But maybe you want to do more parsing:
> in "user,%d,%(\$1)s";
> This in an I/O Intr scanned record fetches the number whenever a line starting with "user," is received and sends the last part to a different record.
>
> Dirk
>
>
>
> Gruss
> Dirk
> > Am 18.05.2017 um 17:22 schrieb Jeong Han Lee <citadel.lee@gmail.com>:
> >
> > Hi Eric,
> > > On 05/18/2017 05:08 PM, Eric Norum wrote:
> > > To guard against buffer overrun issues it’s best to specify a maximum
> > > length in the protocol entry:
> > > read_raw
> > > {
> > >   in “%39c";
> > > }
> >  Thanks for your comments.
> >
> > > Or, if the input terminator is set to a single ‘\r’ or ‘\n’ and the
> > > device sends a "\r\n” you could use:
> > > read_raw
> > > {
> > >   in “%39[^\r\n]";
> > > }
> >  By the way, I have the terminator in "st.cmd" as follows:
> >
> >  asynOctetSetInputEos("L0", 0, "\r\n")
> >
> >  Thanks,
> >  Han
> >
> >
> > > > On May 18, 2017, at 6:37 AM, Jeong Han Lee <citadel.lee@gmail.com
> > > > <mailto:citadel.lee@gmail.com>> wrote:
> > > >
> > > > I have the bar code scanner, so, the string input is the arbitrary
> > > > ascii and numbers from bar codes, generated by myself, whenever I scan
> > > > it.
> > > >
> > > > For example,
> > > >
> > > > case 1 : user,123456789,U002C007
> > > > case 2 : ABCDEFGHIZ0123456789
> > > > case 3 : office,248795493,M01B21
> > > > case 4 : ....
> > > >
> > > > case N : SUBMIT
> > > >
> > > > Note that case 1..N-1 can be done without order.
> > > >
> > > > The scanner has a typical RS232 connection. I wrote the very simple
> > > > IOC with asyn and Stream. It has only one record and one function in
> > > > db and proto file as follows:
> > > >
> > > > --- snip snip ---
> > > >
> > > > record(stringin, "$(SYSDEV)RawScanData")
> > > > {
> > > >   field(DESC, "RAW Scanned data")
> > > >   field(DTYP, "stream")
> > > >   field( INP, "@scanner.proto read_raw $(PORT)")
> > > >   field(SCAN, "I/O Intr")
> > > >   field(PINI, "YES")
> > > > }
> > > >
> > > > read_raw
> > > > {
> > > >   in "%s";
> > > > }
> > > > --- snip snip ----------
> > > >
> > > > Is this enough?
> > > >
> > > >  Thanks,
> > > >  Han
> > > --
> > > Eric Norum
> > > eric@norum.ca <mailto:eric@norum.ca>