CoSy201601
  • 4th.CoSy
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  • Bob Armstrong
    20160101.1317*
     *20160321.1523
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    Seeking Alphas

    Document your life in open Forth APL


    4thCoSy Screen ShotI ended my 4th.CoSy demo at the
     Silicon Valley Forth Interest Group
      HangOut at Stanford U ,
    the 3rd Saturday of November ,
    executing each line below so the partial results would be displayed then tapping F5 to insert the final result into the text window :

      s"  CoSy NEEDS MORE HEADS" >t0> rho  ( |>| 22 | )
      t0 i( 7 23 )i take >t0>
      t0 dup ' reverse 'm ' cL each
      R0 dup reverse cL
    (
     s"  CoSy NEEDS MORE HEADS  SDAEH EROM SDEEN ySoC "
     s" CoSy NEEDS MORE HEADS CC SDAEH EROM SDEEN ySoC"
     s" oSy NEEDS MORE HEADS CooC SDAEH EROM SDEEN ySo"
     s" Sy NEEDS MORE HEADS CoSSoC SDAEH EROM SDEEN yS"
     s" y NEEDS MORE HEADS CoSyySoC SDAEH EROM SDEEN y"
     s"  NEEDS MORE HEADS CoSy  ySoC SDAEH EROM SDEEN "
     s" NEEDS MORE HEADS CoSy NN ySoC SDAEH EROM SDEEN"
     s" NEEDS MORE HEADS CoSy NN ySoC SDAEH EROM SDEEN"
     s"  NEEDS MORE HEADS CoSy  ySoC SDAEH EROM SDEEN "
     s" y NEEDS MORE HEADS CoSyySoC SDAEH EROM SDEEN y"
     s" Sy NEEDS MORE HEADS CoSSoC SDAEH EROM SDEEN yS"
     s" oSy NEEDS MORE HEADS CooC SDAEH EROM SDEEN ySo"
     s" CoSy NEEDS MORE HEADS CC SDAEH EROM SDEEN ySoC"
     s"  CoSy NEEDS MORE HEADS  SDAEH EROM SDEEN ySoC "
     )
    I've used this demo with various phrases , for instance : 'Eigen'Invite , MidWinter 96 , going back at least to the early '80s . My earliest distinct memory of showing it was when Paul Ellarby and I went down to Manhattan to test Philip Van Cleave's APL68000 on a WiCat departmental computer to wean RochesterGas&Electric's corporate model off IP Sharp time sharing ( cloud for any millennials ) . These were among the first desktop and cabinet sized computers capable of previously mainframe APL applications . In any event , Vidal Sassoon was also looking at the machines and I happened to show him this example as the sort of tek we were looking to use on one . He thought it was neat that so much could be done with so few fairly understandable words ( well , APL symbols denoting those words ) .



    The Every Day Practical
    Cptn Picard's log

    The
     User=Coder

    4th.CoSy is unique in being a First Person system
    As I comment in the Forth Day demo , I  created CoSy for my own use to give me the personal tool of thought  APL provides in a notebook environment always at my finger tips .
    • CoSy is not a Third Person system written  by programmers to satisfy a boss's notions of what might be marketable .
    • CoSy is for my control of my computing resources .
    • CoSy  provides a 1 = 1 relationship between me and any minds like enough to mine to find CoSy an indispensable aid in their everyday business of life .
    CoSy 's pervasive use is as my diary and day timer and that's perhaps the use for which most people would download it and keep it around on their devices . But CoSy is unique in it's simplicity . It's goal has always been to provide intelligent paper , not lots of forms and blanks . CoSy just supplies windows of text so everything is editable and searchable . It has been called Textual User Interface to contrast it with the common GUI .  See Cptn Picard's logCoSy  is for those who like to think at the most succinct level -- where a typing a symbol may be very meaningful , and like precision in their notes and life .

    Since its  earliest forms CoSy has been about having programming , indeed programming of CoSy itself , be just a part of life .  CoSy is for writing down thoughts when you have them . The thoughts may be about your human stuff , or it may be a thought about an algorithm or the definition of a key that bugs you or might be useful .

    In CoSy the difference is just a keystroke .
    • Tapping enter is just a carriage return
    • Tapping F6 tells CoSy to do whatever the line under  the cursor says displaying the result ( which must  be a CoSy object or nothing ) .

      And currently :
    • Tapping sF6 causes the line to be executed in Forth without automatic output .
    At this point 4th.CoSy is very raw . It is like an early race car -- bare metal and no seat belt .

    But if there is anything on the planet as individually programmable from the chip to the APL level , please let me know .

    See CoSy/4th.CoSy for more teky details and to download . Post any problems , questions , comments , suggestions or code on the blog on that page or whatever page seems most appropriate . Subscribe to the page to keep up on announcements .

    #Are You an Alpha ? 4th.CoSy is far from done . But the foundations of 4th.CoSy are now solid and complete enough to both be everyday useful and brought into the realm of "ordinary" programming . The fundamental algorithms for transforming from the fixed , machine level address space of Forth to reference counted dynamic lists of lists structure , simplified even from K , is solid over a large domain , as is the bijective transformation from the recursive lists to a flat byte string , ie , file .
     
    APLers will see enormous gaps in the vocabulary -- and lots of code which needs to be updated and simplified from the bushwhacking past . That vocabulary which was not on the path to completing and making rock solid the note keeping TUI and the most fundamental vocabulary for creating and operating on the recursive lists was of lower priority . But APLers can look at the vocabulary and the code and fill in the gaps that are important to themselves , enhancing the language for the rest of us in the process .

    The interface itself is a dated version of the open source Brazilian  IUP . Many rather simple but important enhancements have not been made because it is far from clear whether it is the best choice going forward . Altho its well supported , it may be more complex than others around now . But right now that takes heads more interested in interfaces and with fresh time to evaluate or interface alternatives .

    FORTHers can look at the x86 Reva Forth by Ron Aaron in which 4th.CoSy is constructed and see lots of simplifications and enhancements . Reva by itself is a capable , practically oriented Forth . It is enhanced by some important libraries contributed by the global cluster of world class programmers including such things as sockets , regular expressions , and  big nums . Danny Reinhold of Bremen interfaced the IUP .

    Click to see Full Screen .
    ScreenShot of K.CoSyCoSy with APL+PC. peeking out
    I'm particularly interested in bringing the sockets vocabulary to the CoSy level to enable communication between multiple instances of 4th.CoSy , and so I can slave my legacy K.CoSy accounting system to my 4th.CoSy working environment . I couldn't have stolen the time to create 4th.CoSy if it were not for K.CoSy's very flexible and powerful accounting functionality with typical CoSy logs hyperlinked to associated ledgers . But the limitations of the K environment , for instance its lack of cut%paste with the outside world , and Kx's very different obsessions ( K.CoSy may well be the only interactive workspace like environment ever created in K ) drove me to finally figure out how to roll my own APL from a chip language up in FORTH .
     
    Now the foundation of 4th.CoSy is mature and stable enough that it can evolve exponentially faster with , in the spirit of my most esteemed mentor , Donald T Campbell's  fish scale model of omniscience
     , 4th.CoSy , the language and the environment needs more minds , who like mine are attracted by extreme simplicity .

    The first thing is to get the conversation going . Download it and post your experience or ask a question either here or there or by email .

    If you have a task which the unique open span of 4th.CoSy from the chip all the way to APL level thought is important , let us see if we can work together to create something new and competitive on the planet . 
     
    #Ideas

    Important ideas :
    • All objects are  lists
    • Items of lists may themselves be lists
    • modulo indexing
    • dictionary ( names ;  values )
    • R tree dictionary
    • meta link on every object
    • Currently directly executed in FORTH
    Important scripts :
    •  ( (bijective ) transformation > <  allocated reference counted lists of lists and a linear file form
    • reference counting "algebra" on lists of lists to handle various situations
    • Stack Frame vocabulary
    • Atomic Apply





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