Re: parser

[Dennis <iseries@xxxxxxxxxxxx>]

Vern, I appreciate you taking the time.  I'll try to digest this over dinner (or supper, depending upon your place of birth) this evening.  

Thank you.

"Vern Hamberg" <vhamberg@xxxxxxxxxxx> wrote:

> Dennis, et al.
>
> This has taken a while, but I was at COMMON when you asked and am just 
> getting back to this.
>
> Parsing in REXX can be done many ways - with patterns, by position,
> lots 
> of options. This is an example of using relative position -
>
> parse var output name +25 question +50 counter +10
>
> This will take the variable "output" and parse it into 3 variables - 
> "name", "question", and "counter". The value in output is 3
> fixed-length 
> values of length 25, 50, and 10 respectively.
>
> If output = Vern                     What've I done?                   
>
>                247
>
> then
> name = Vern
> question = What've I done?
> counter = 247
>
> The above came from using the CGI API that converts a query string.
>
> Patterns can also be used - here is something similar to the above -
>
> The variable output = FM_name='Vern'; FM_counter='98';
> FM_question='What 
> have I done now?'
>
> This statement gives results as desired -
>
> parse var output "FM_name='" name ,
> "'; FM_counter='" counter ,
> "'; FM_question='" question "'" .
>
> Commas are continuation symbols at the end of a line.
>
> Full quotes are used to delimit single quotes - so it's full-quote 
> FM_name= single-quote full-quote, etc.
>
> Result is -
>
> NAME = Vern
> COUNTER = 98
> QUESTION = What have I done now?
>
> I hope that gives you some idea of the capability you have with REXX. 
> The manuals are available at Infocenter under the programming area.
> Vern
>
> On 4/29/2011 7:29 AM, Dennis wrote:
> > Hi Vern.  Care to demonstrate?
> >
> > "Vern Hamberg"<vhamberg@xxxxxxxxxxx>  wrote:
> >
> > > One of the best parsing "utilities" is REXX - native on i, easy to
> work
> > > with.
> > >
> > > On 4/28/2011 4:33 PM, Hockchai Lim wrote:
> > > > I've a ifs file with content like below:
> > > > EWREST_id_0='861';
> > > > EWREST_wfstate_0='Open';
> > > > EWREST_summary_0='SummSumm -TW';
> > > > EWREST_boss_ciss_customer_no_0='1234';
> > > > EWREST_id_1='761';
> > > > EWREST_wfstate_1='Open';
> > > > EWREST_summary_1='Test -TW';
> > > > EWREST_boss_ciss_customer_no_1='123456789';
> > > >
> > > > Each line basically contains a key-value pair data.  Does anyone
> know
> > > if
> > > > there is already an open source utility that can read and parse
> this
> > > type of
> > > > data file where caller can basically ask for a pair of data at a
> > > time?
> > > > thanks
> > > -- 
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Sent from my Galaxy tablet phone with with K-9 Mail. Please excuse my brevity.