yab | yet another Basic for HAIKU - yab stuff

Undocumented yab functions

Wed, 28 Aug 2024 19:23:00 +0300

I recently came across some yab functions that seem to have escaped from the documentation.

Code:
a = pcworkspaces

a- window get "MainWindow", "workspace"

These appear in neither the yab commands textfile nor in the Besly app. I just had a feeling that they had to exist, so I, ummmm, ripped apart an existing app to extract its code and see how it was done. Sorry, lorglas, I think it was one of yours.

In fact, looking at the list of reserved keywords there may be a few more undocumented commands. roundrect, anyone?

yab on YouTube

Wed, 08 May 2024 15:43:03 +0300

I have started a YouTube series of videos on yab.

https://www.youtube.com/channel/UC47EyOP...QEPQPxF9rQ

All very basic (pun intended) and nothing that the old hands here need to concern themselves with (except to correct me in the comments, of course!) This is just a heads-up that there may be newbies arriving in this forum within the next week or two.

Visual editor for Yab widgets

Mon, 04 Jul 2022 17:20:51 +0300

Hello,

Is there a program for YAB in which you can visually create GUI?
I create such an app for myself but maybe it is already IDE/visual editor .

yab 1.7.6 not backwars compatible

Tue, 19 Feb 2019 22:40:23 +0200

The next version of yab will not be completely backward compatible. If a program draws to a view it will need to set the transparency properly. Most programs will just run, but programs that draw to a view may be broken. Is there a need to accommodate old yab programs or can we expect the developers to repair their programs?

Yab to C converter

Fri, 05 Oct 2018 21:53:58 +0300

I know a technique to write a Basic compiler using C or C++ as a backend. Currently the stand-alone executable codes from Yab appear to just link an interpreter to a zipped copy of the source and I think I can do better.

Since BASIC isn't fully structured it'll have to be written using a Switch command in a While loop to act as a state machine. Also, to implement declaration of variables on-the-fly, it will have to be a pass-and-a-half compiler. That's a fancy way to say the compiler will have to write to a header file or so at the same time as the C source that includes it using its preprocessor.

Is there interest? My goal is to have some code written to serve as an example for another BASIC compiler I want to write. I may need help with the Haiku runtimes.

tabs on the side!

Mon, 18 Sep 2017 08:12:24 +0300

Thanks yo a PR by KapiX, We now can use the new side-tab feature.

tabview 10,60 to 530,390, "Box", "left", "Win"

One must use the get the latest yab script ... http://yab.orgfree.com/GetLatest-yab.zip and have a really recent version of haiku to use this.

x86_64 progress

Mon, 31 Jul 2017 21:28:47 +0300

It seems that the way flex works on 64 bit is the problem... we modify flex.c to make the BuildFactory work. if I copy the modified flex.c from a standard install BuildFactory to the x86_64 BuildFactory folder, I can build binaries with the BuildFactory on a 64bit install.

Now to fix it so that it makes the proper flex.c automaticly.... stay tuned!

yab for Haiku x86_64?

Mon, 19 Dec 2016 11:54:26 +0200

What the title says. Has anyone managed to compile this? I tried the lastest_yab script but ran into more makefile and compiler issues than my limited skills could handle.

I am looking to diversify my repo to x86_64 and would love to have yab apps there. Even if I can just have yab without the IDE package that would be great.

brace yourselves: font change is coming

Mon, 28 Nov 2016 13:07:02 +0200

According to this notice Haiku's default font will change from DejaVu to Noto. DejaVu will be a downloadable package not included in the default install

If you have been lazy like me and not specified your fonts in your applications, you may want to upgrade once this change has come though and see what your apps look like now. Maybe it will be all right, but maybe there will be that one button where the text gets cut off. But if you did specify your fonts and want to keep it that way, you'll need to specify DejaVu in your HPKG as a dependency.

Hmm, in href 50714 all the fonts fall back to Bitstream Charter. I've put in a ticket.

Thumb

Mon, 31 Oct 2016 19:08:21 +0200

I added my thumbnailing program to github:

https://github.com/bbjimmy/Thumb

Thumb is a command-line tool to create thumbnails of image files for use in webpages etc. programmed in yab. the sources are on the git repo.

pgextract - new app

Fri, 23 Sep 2016 21:40:34 +0300

Just a little CLI app to grab the book title and author from a Project Gutenberg UTF-8 text file and write them to attributes of the file. By itself this won't be of much interest, but it is part of an ebook reader project of mine.

Usage:
pgextract_en path/to/file.txt
asks for confirmation in the Terminal before writing the attributes

pgextract_en --noconfirm path/to/file.txt
Skips confirmation. For use in batch conversions. This app will only accept a single filename, but you can use it inside a for loop in a shell script.

pgextract_en --confirmGUI path/to/file.txt
Puts the confirmation process in a graphical Alert. Haven't quite figured what that would be good for yet, but who knows?

pgextract_en --help OR pgextract_en -h
shows help

path/to/file.txt cannot contain spaces. Maybe in the next version, but Project Gutenberg files have names like pg12345.txt anyway.

I discovered that PG files have some nasty embedded codes in the beginning of the file, otherwise more straightforward approaches would have been possible. This code does require some clean-up - too many exit points, for one thing.

Code:
#!/bin/env yab

doc pgextract_en v0.1

doc Extract author and title data from a Project Gutenberg text file,

doc and write these to attributes.

doc (c) Michel Clasquin-Johnson, 2016, Public Domain

doc

doc Usage:

doc   pgextract_en <--noconfirm> <--confirmGUI> 

doc

doc The default behaviour is to ask for confirmation in text mode before

doc writing the attributes. The --noconfirm switch skips this step. The

doc --confirmGUI switch puts the confirmation in a Haiku two-button alert.

doc These switches are INCOMPATIBLE! All switches are case-insensitive.

doc

doc Pathnames should NOT contain spaces. One file at a time, please!

doc

doc This will only work with English-language files, since it searches for

doc the strings  "The Project Gutenberg EBook of " and ", by". I may write

doc versions for other languages if necessary.

doc 

fulltitle$=""

title$=""

author$=""

noconfirm =0

thefile$ = peek$("argument")

if lower$(thefile$) = "--help" or lower$(thefile$) = "-h" showhelp()

if lower$(thefile$) = "--noconfirm" then 

    noconfirm =1

    thefile$ = peek$("argument")

elseif lower$(thefile$) = "--confirmgui" then 

    noconfirm =-1

    thefile$ = peek$("argument")

endif

if thefile$ = "" exit

firstline$ = system$("head -n 1 " + thefile$)

print "Processing " + thefile$

print "First line: " 

print firstline$

print "Parsing ..."

parse()

switch noconfirm

    case -1    //GUI confirmation

        a$ = "Full Title: " + fulltitle$ + ".\n"

        a$ = a$ + "Title: " + title$ + ".\n"

        a$ = a$ + "Author: " + author$ + ".\n\n"

        a = ALERT a$ + "Write these attributes to " + thefile$ + "?", "Yes", "", "No", "warning" 

        if a = 1 writeattribs()

    break

    case 0    //CLI confirmation

        print "Full entry: " + fulltitle$

        print "Title: " + title$

        print "Author: " + author$

        input "Write these attributes to the file? (y/n) " a$

        if lower$(left$(a$,1)) = "y" writeattribs()

    break

    case 1    // no confirmation - for automated bulk operations

            //requires the --noconfirm switch

        writeattribs()

    break

    default

    break

end switch

exit

sub writeattribs()

    print

    print "Setting attribute ebook:full_title to " + fulltitle$ + "."

    attribute set "String", "ebook:full_title", fulltitle$, thefile$

    print "Setting attribute ebook:title to " + title$ + "."

    attribute set "String", "ebook:title", title$, thefile$

    print "Setting attribute ebook:author to " + author$ + "."

    attribute set "String", "ebook:author", author$, thefile$

end sub

sub showhelp()

    for a=1 to arraysize(docu$(),1) 

        print docu$(a) 

    next a 

    exit

end sub

sub parse()

    local without_asterixes$, character$, postitle, posauthor, search1$, search2$

    //change the following 2 lines for books in other languages

    search1$ = "The Project Gutenberg EBook of "

    search2$ = ", by "

    //some PG files have asterisks in them. Replace these with spaces

    //then remove them later with trim$

    for f = 1 to len(firstline$)

        character$ = mid$(firstline$, f,1)

        if character$ = "*" or character$ = chr$(20) character$ = " "

        without_asterixes$ = without_asterixes$ + character$

    next f

    firstline$ = without_asterixes$

    firstline$ = trim$(firstline$)

        print "Cleaned up the first line:"

        Print firstline$

    postitle = instr(lower$(firstline$), lower$(search1$)) + len(search1$)

    fulltitle$ = trim$(mid$(firstline$, postitle))

    posauthor = instr(lower$(fulltitle$), lower$(search2$)) + len(search2$)

    title$ = trim$(left$(fulltitle$, posauthor - (len(search2$)+1)))

    author$ = trim$(mid$(fulltitle$, posauthor))

end sub

NetFS Control Center :New Project

Tue, 06 Sep 2016 05:05:35 +0300

NetFS Control Center

NetFS is the networked BFS sharing file system that is available for Haiku. It is an easy way to share files between Haiku computers. This is a GUI Wrapper to the netfs_server_prefs command-line tool.

New on the FatElk repo

Wed, 20 Apr 2016 06:51:20 +0300

Yoshi

Yab over the Shell Interface

Yoshi is used to allow a script to query the user for information. Yoshi displays information to the user and receives the input, then passes the information back to the script. Yoshi doesn't change your script into an interactive gui application. Each query window is closed when the information is returned and the script must open a new window to continue to interact with the user.

This is an example of the power iof yab.

https://github.com/bbjimmy/Yoshi/wiki/Introduction

http://fatelk.com/repo/packages/yoshi-0...._gcc2.hpkg

new lib

Sun, 10 Apr 2016 17:57:48 +0300

Now up on my repo: the rather grandiosely named libclasqm...hpkg.

For now, this is a small collection of yab routines and utilities, many of them based on discussions we've had on this forum. I've tried to give credit in the code where that is the case. It also includes some ancient yabasic libraries that might still serve as inspiration. Don't ask where I got those: I've had them tucked away on my hd for years.

These are routines I, personally tend to use a lot, and a few I've never done but thought were pretty neat to work out anyway. Over time it may become a requirement to compile my apps. It is not really an orderly, focused collection of routines, more a personal grab-bag. But I thought I'd share it anyway.

#yab on freenode

Tue, 01 Mar 2016 23:26:51 +0200

I have registered control for #yab on freenode.

Launch vision
log-in to freenode
type:

Code:
/join #yab

This is a good place for real-time chats regarding yab and yab programming.