Re: [mvdbms] Digest for mvdbms@googlegroups.com - 1 update in 1 topic

[altsys1 .]

Great stuff Randy!

Bruce Cameron
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On Mon, Sep 21, 2015 at 2:40 PM, <mvd...@googlegroups.com> wrote:

mvd...@googlegroups.com

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• MV Basic and JavaScript - 1 Update

MV Basic and JavaScript

Randy Walsh <randy...@gmail.com>: Sep 19 02:52PM -0700 I thought I'd share a project I started, it's called JSB (short for JSON enabled Basic). Url address is: TCL <http://jsonbasic.azurewebsites.net/___jsbhtml5/tcl.html> (See some docs here: OnLine Help <http://jsonbasic.azurewebsites.net/sysprog/help> - or type "help subject" from TCL <http://jsonbasic.azurewebsites.net/___jsbhtml5/tcl.html>)   It converts MV Basic (mostly) to JavaScript. I still have a lot of improvements that I'm working on, but I've noticed over the past in this group that people have talked about such an idea. I'm doing this for fun. Although I don't work in an MV Enviroment, I once did about 35 years ago, and I have always enjoyed what the MV world have to offer. And, yes, to those that already know it, JavaScript has brought back much of what MV was, at least to me.   To see some translated code, try this:   From TCL <http://jsonbasic.azurewebsites.net/___jsbhtml5/tcl.html>, type: > CREATE-FILE BP   > ED BP TEST     (In the editor type a program and then click save!)   PRINT @(-1):"HELLO"   DEBUG   STOP "DONE"     > BASIC BP TEST (L   (using the L option will show a listing in javascript)   Because this is a JavaScript implementation, you can see all the sources (use your browser to inspect).   I work a lot in JavaScript and Visual Basic (.Net), so I've extended the language with some additional syntax, and I've taken the liberty of using what I liked best about MV Basic. There are Q-PTRS to my server for the FILES (tables) JSB_TCL <https://jsonbasic.azurewebsites.net/sysprog/?l%20jsb_tcl> functions, the JSB_HTML <https://jsonbasic.azurewebsites.net/sysprog/?l%20jsb_html> functions, and other general functions (JSB_BF <https://jsonbasic.azurewebsites.net/sysprog/?l%20jsb_bf>). You can LIST and VIEW these items at the TCL command prompt. <http://jsonbasic.azurewebsites.net/___jsbhtml5/tcl.html> You will get a lot of ideas about how I have extended the language by looking at the code in those tables.   If your an MV Basic programmer, you will find most R83 MV Basic commands will work, but I've dropped the "." syntax in variable names (use "_" instead), and I've gotten rid of the "expr expr" syntax of formatting, and changed it it a function Fmt(expr, expr). I currently don't have code for Locks (READU, LOCK, etc.) This may come later. I've added function support, and I'm currently working on Class (object) support. And, also I've added string escapes for strings with single or double quotes ie, PRIT 'ain\'t that nice"; If you don't want string escapes, use the back quote ` character, as in PRINT `ain't this nice too`   Currently the database is using the Local Storage <http://www.w3schools.com/html/html5_webstorage.asp>, which means all your programs and data are being stored by the Browser and local only to you. I have code in there for indexed DB (slow), and direct filesystem access for browsers that support this (HTA - windows) and Andriod-PhoneGap). Yes, this project will compile under PhoneGap and can be run stand-alone on an Android Phone or Tablet.   I am working on an "ENGLISH" front end for the database. You can do simple "LIST" and "SORT" commands at this point. I don't have the META Data defintions done yet (so no ICONV's or OCONV's yet). The low level libraries for all the database I/O are here <http://jsonbasic.azurewebsites.net/___jsbhtml5/js/jsbLibDB.js>. I also have a higher level Database I/O, which is written in the language it self. see this code <https://jsonbasic.azurewebsites.net/sysprog/?view%20jsb_odb%20%27i_db%27>   Anyway, I hope you enjoy. Pretty much all the source is there so if something isn't working, have a look at it. I'll try to fix bugs as I have the time. (Got to work a day job and take care of a family too).   Enjoy! and may God bless you richly. Randy     p.s. If your program crashes or something doesn' work right, just refresh your browser. Remember, anything you write is local to your browser, so if you delete your browsing history, you'll lose your stuff.

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