Re: VAriables on the command line.

[Fred Weiner fw1948@xxxxxxxx]

Thanks Carl, thanks Harry. Math/logic minds leave me in awe.


On Fri, Feb 1, 2013 at 11:33 PM, Carl Distefano mailto:cld@xxxxxxxx wrote:



Reply to note from Harry Binswanger mailto:hb@xxxxxxxx Sat, 02 Feb

2013 00:32:33 -0500



> By the way, I think I posted here the amazing fact that you can

> use a variable in , if you precede it by another @.

> Thus:

>

> 



Ah, so! Meaning that if S/G 01="red.white.blue" and S/G 02=3, then

 returns "blue", as shown here (DeFine and XYRUN it):



'%--_XYENCode_start--

~~~~>~
~>~

'%--_XYENCode___end--



Which is nifty indeed! Nice find, Harry!



By the way, you can use my frame VA@ (or VN@) to do "column,row"

array parsing with either hard or variable x,y values. Both examples

below pluck out word 3 in row 2 ("mind"). In the first example, the

values 2 and 3 are hard-coded; in the second, they're in S/G 02 and

03, respectively. Note that the framename is flexible in that it

will accept CrLf as the separator; no can do with native VA@.

(Decode the examples to visualize the columnar array.)



'%--_XYENCode_start--

',*',_hard-coded_column,row'^~
'^ago,never,mind,how,long'^precisely,having,little,or,no'^mone

y,in,my,purse,and'^nothing,particular,to,interest,me'^on,shore

,I,thought,I'^would,sail,about,a,little~>'JM2.VA@01'^2'Q2'JM2.

VA@50,3'Q2~~'^

'%--_XYENCode___end--



'%--_XYENCode_start--

',*',_variable_column,row'^~
ago,never,mind,how,long'^precisely,having,little,or,no'^money,

in,my,purse,and'^nothing,particular,to,interest,me'^on,shore,I

,thought,I'^would,sail,about,a,little~>~~'JM

2.VA@01'^~'Q2'JM2.VA@50,~'Q2~~'^

'%--_XYENCode___end--



--

Carl Distefano

mailto:cld@xxxxxxxx