Binary sheme


binary sheme Binary IO and applications. Binary parsing and unparsing are transformations between primitive or composite Scheme values and their external binary representations. Examples include reading and writing JPEG, TIFF, ELF file formats, communicating with DNS, Kerberos, LDAP, SLP internet services, participating in Sun RPC and CORBAIIOP distributed systems, storing and retrieving (arrays of) floating-point numbers in a portable and efficient way. This short position talk proposes a set of low - and intermediate - level procedures that make binary parsing possible. The slides and the transcript of a micro presentation at a Workshop on Scheme and Functional Programming 2000. Montreal, 17 September 2000.


Reading variable number of bits from a sequential input stream. The bit reader is the first part of a binary parsing framework. The bit reader code was intended to be as general and optimal as possible. The timing study given in the article referenced below shows the extent both goals have been met.


The bit reader lets us read one bit from an arbitrary stream. We can then read one more bit -- or two more bits, or 3, 7, 8, 23, 30, or 32 more bits. And then 33 bits, 65535, 81920. bits. Following the tradition of Scheme, the bit reader does not impose any artificial upper limit whatsoever on the number of bits we can attempt to read from a stream.


We are naturally bounded by the size of the stream and the amount of the virtual space on the system. The validation tests included with the source code really read all the bits from a file in one swoop -- as well as one bit at a time, and many cases in-between. The bit reader intentionally does not read ahead no byte is read until the very moment we really need (some of) its bits. Therefore, the reader can be used to handle a concatenation of different bitbyte streams strictly sequentially, without 'backing up a char', 'unreading-char' etc.


tricks. For example, make-bit-reader has been used to read GRIB files of meteorological data, which are made of several bitstreams with headers and tags. Careful attention to byte-buffering and optimization are the features of this bit reader. The code is tested on Gambit-C 3.0 and MIT Scheme 5d2. The code has R5RS versions of needed logical primitives, so it should work for any R5RS Scheme system.


Despite the bit reader being so general, it is nevertheless optimized for common uses. The optimized cases stand out in the timing benchmarks discussed in the article. Insightful discussions with Daniel Ortmann are gratefully acknowledged. Version The current version is 1.1, Oct 20, 2000.


References. A commented source code, validation tests, and a timing benchmark. kindly ported by Martin Gasbichler. that describes the code and presents the results of several performance benchmarks.


The timings also give an insight into the performance of a Scheme system. The article was posted as _wide-range_ optimized bit reader and its performance on a newsgroup comp. lang. scheme on Sun, 22 Oct 2000 202056 GMT. An Endian IO port lets us read or write integers of various sizes taking a byte order into account.


The TIFF library, for example, assumes the existence of a data structure EPORT with the following operations The endian port can be implemented in a R5RS Scheme system if we assume that the composition of char->integer and read-char yields a byte and if we read the whole file into a string or a u8vector (SRFI-4). Obviously, there are times when such a solution is not satisfactory. Therefore, tiff-prober and the validation code vtiff. scm rely on a Gambit-specific code. All major Scheme systems can implement endian ports in a similar vein -- alas, each in its own particular way. Version The current version is 2.0, Oct 2003.


References. This TIFF prober code provides an implementation of the input Endian port specifically tuned for Gambit. Our goal is to reproduce all the functionality of that C++ library in Scheme. Handling a TIFF file.


TIFF library is a Scheme library to read and analyze TIFF image files. We can use the library to obtain the dimensions of a TIFF image the image name and description the resolution and other meta-data. We can then load a pixel matrix or a colormap table. An accompanying tiff-prober program prints out the TIFF dictionary in a raw and polished formats. Features The library handles TIFF files written in both endian formats.


A TIFF directory is treated somewhat as a SRFI-44 immutable dictionary collection. Only the most basic SRFI-44 methods are implemented, including the left fold iterator and the get method. An extensible tag dictionary translates between symbolic tag names and numeric ones.


Ditto for tag values. A tag dictionary for all TIFF 6 standard tags and values comes with the library. A user can add the definitions of his private tags.


The library handles TIFF directory values of types (signed unsigned) byte, short, long, rational ASCII strings. A particular care is taken to properly handle values whose total size does not exceed 4 bytes. Array values (including the image matrix) are returned as uniform vectors (SRFI-4). Values are read lazily.


If you are only interested in the dimensions of an image, the image matrix itself will not be loaded. TAGDICT A data structure a tag dictionary, which helps translate between tag-symbols and their numerical values. tagdict-get-by-name TAGDICT TAG-NAME -> INT tagdict-get-by-num TAGDICT INT -> TAG-NAME or #f tagdict-tagval-get-by-name TAGDICT TAG-NAME VAL-NAME -> INT tagdict-tagval-get-by-num TAGDICT TAG-NAME INT -> VAL-NAME or #f make-tagdict ((TAG-NAME INT (VAL-NAME . INT) . ) . ) -> TAGDICT tagdict?


TAGDICT -> BOOL tagdict-add-all DEST-DICT SRC-DICT -> DEST-DICT Here TAG-NAME and VAL-NAME are symbols. tiff-standard-tagdict The dictionary of standard TIFF tags. TIFF-DIR-ENTRY A data structure that describes the tag, the type, the item count of the entry, the offset or an immediate value of the entry, and a promise for entry's value. The value may be an integer, a rational, a floating-point number, a string, or a uniform vector (u8vector, u16vector or u32vector).


TIFF-DIRECTORY TIFF Image File Directory, a data structure. TIFF directory is a collection of TIFF directory entries. The entries are stored in an ascending order of their tags. read-tiff-file EPORT PRIVATE-TAGDICT -> TIFF-DIR print-tiff-directory TIFF-DIR OPORT -> UNSPECIFIED tiff-directory?


SCHEME-VALUE -> BOOL tiff-directory-size TIFF-DIR -> INT tiff-directory-empty? TIFF-DIR -> BOOL tiff-directory-fold-left TIFF-DIR FN SEED . -> SEED .


tiff-directory-get TIFF-DIR KEY ABSENCE-THUNK -> VALUE KEY may be either a symbol or an integer tiff-directory-get-as-symbol TIFF-DIR KEY ABSENCE-THUNK -> VALUE Here KEY must be a symbol. If it is possible, the VALUE is returned as a symbol, as translated by the tagdict. The library accesses the input TIFF image file solely through the methods defined for the endian port. Version The current version is 2.0, Sep 2003.


References. The article was posted as ANN Reading TIFF files on a newsgroup comp. lang. scheme on Tue, 7 Oct 2003 182412 -0700. The commented source code.


It explains the interface above in far more detail. Dependencies util. scm, char-encoding. scm, myenv.


scm. The validation code. The validation code includes a function test-reading-pixel-matrix that demonstrates loading a pixel matrix of an image in an u8vector. The code can handle a single or multiple strips.


A sample TIFF file for the validation code. It is the image of the GNU head ( gnu. org) converted from JPEG to TIFF by xv. Copyleft by GNU. A TIFF prober program a sample application of the TIFF library.


The prober prints out the contents of a TIFF dictionary of input TIFF files. Reading IEEE binary floats in R5RS Scheme. We show how to read IEEE binary floating-point numbers using only procedures defined in R5RS.


No special language extensions, foreign function interfaces, or libraries are required. The only assumption is that char->integer returns an integer with the same bit pattern as the function's argument, a single 8-bit ASCII character. The assumption holds for many Scheme systems. The code can read 4-byte single-precision IEEE floating-point numbers from minfloat to maxfloat inclusively. The code does not handle +Inf , - Inf and NaN s, although this is trivial to add, as explained in the comments to the code.


One can twiddle bits in Scheme after all it is just arithmetics. The article was posted as Reading IEEE binary floats in R5RS Scheme on a newsgroup comp. lang. scheme on Wed, 08 Mar 2000 032425 GMT.


Last updated December 5, 2008. Your comments, problem reports, questions are very welcome! Scam Alert Youtube Video Promises $195 in 5 Minutes. Here’s the latest ridiculous binary options video we’ve found on YouTube The title of the video is the title of this article “Binary Options Trading System – $195.00 In Just 5 MINUTES. ” Yes, it’s complete with those all capital letters and the extra punctuation marks.


The video promotes something called the 60 Second Cash System. It’s hard to get more blatantly over the top than this, but tons of people fall for it and buy this system on a regular basis, you can be sure of that. And not just this system either, but many like it. Firstly, the punctuation and capitalization is by itself a dead giveaway. Something that actually works and can be demonstrated is going to sell itself based on its utility, and isn’t going to require a lot of flourishes to grab attention. For another thing, it points toward exaggeration.


No matter how well something works, it’s not going to work well enough to warrant all those exclamation marks, question marks, and capital letters. The most reliable trading methods in the world usually don’t pull in more than 85% profits, and that’s at the best of times. In short, it’s absurd.


The implication in this title is subtle, but it’s that you can make $195.00 every five minutes with this system. That’s just not going to happen. Think about it. If you could make almost $200.00 every five minutes, you’d be able to make $2400.00 every hour, and in an eight-hour workday you could make close to $20,000 . Who makes $20,000 a day? You’d be a billionaire within a couple of years.


If it were this easy to become a billionaire, why on earth would anyone work a standard 9-5 job? At that rate, imagine what would happen to the world markets if everyone who traded using this system were that successful. If that many retail traders were suddenly able to bring in and command huge sums of money, the change in the world markets would be so megalithic that it’d upset the financial stability of every nation on earth.


Lessons Learned From This Binary Options Trading Scam. And there’s another lesson hidden here, and that’s that most binary options traders—indeed, most individual traders in any market—fail. The market movers in any given market are usually large companies, governments, and individuals with huge bankrolls—not small retail traders like you and me. There’s a reason that most individual traders fail too, and it’s not just the small bankroll—it’s also a lack of training, education, and hard work and time spent becoming an expert on trading.


In short, buying into trading systems like this that don’t really work (or can’t work as well as they claim) instead of investing in yourself is the best way to ensure that you’re going to fail as a binary options trader. What should you do instead? Invest time in yourself by learning everything you can about binary options trading. That means not just learning how to physically place a trade on a trading platform, but how to come up with a rationale for placing your trades, one which can generate consistent, reliable profits. Once you’ve done that, you’ll be in a better position to make $195.00, whether it’s in a five minute trade or a five month trade—and then to make that kind of money again without losing it in the meantime.


You’ll learn that success isn’t instant, and that the five minutes you’re in a short-term trade has to be backed by a lot more time spent planning your trades. The road to any sort of trading success is a long one and it can be a hard one. It’s only the road to failure which is short and swift.


So educate yourself, find a good trading method, test it thoroughly, and then go live—but don’t waste your money on systems that promise to deliver impossible results. binary sheme MITGNU Scheme is an implementation of the Scheme programming language, providing an interpreter, compiler, source-code debugger, integrated Emacs-like editor, and a large runtime library. MITGNU Scheme is best suited to programming large applications with a rapid development cycle. Release status and future plans.


The releases provide binaries that run on i386 and x86-64 machines under the following operating systems GNULinux, OS X, and Windows. We additionally provide binaries for selected other architectures and systems, depending on the hardware and software that is available to us. We no longer support OS2, DOS, or Windows systems prior to XP. Recent release notes are here. In the future, we plan to deploy a new portable virtual machine and implement a module system.


We also plan to finish support for R5RS and R7RS , but we will not be providing support for R6RS . Other potential projects can be found on the tasks page. MITGNU Scheme is available in binary form for a variety of systems. Note that most problems unpacking or installing this software are due to corrupted downloads, so please check the downloaded file for a correct MD5 checksum before submitting a bug report. Each distribution below has its own list of MD5 checksums.


Scheme Sorting Examples. Remember that selection sort works by finding the smallest element and moving it into the first position, then finding the second smallest and moving it into the second position. In general, on the ith iteration, it finds the ith smallest element and move it to position i. This works as follows (selection '(6 4 5 3 9 3)) (cons 3 (selection '(6 4 5 9 3)) (cons 3 (cons 3 (selection '(6 4 5 9)) (cons 3 (cons 3 (cons 4 (selection '(6 5 9)) (cons 3 (cons 3 (cons 4 (cons 5 (selection '(6 9)) (cons 3 (cons 3 (cons 4 (cons 5 (cons 6 (selection '(9)) (cons 3 (cons 3 (cons 4 (cons 5 (cons 6 (cons 9 (selection '()) Which becomes (3 3 4 5 6 9). The scheme code below does exactly this Merge Sort. Mergesort divides the list in half everytime, calling itself on each half.


As the recursion unwinds, it merges the sorted list into a new sorted list. For example, assume we have the following At the lowest tree leves, the two element get sorted and the recursion unwinds. The next level of recursion And the final level with merges into the overall list Of course, this is not the actual order that things happen but it give the overall algorithm flavor. In scheme, we can write functions to split lists, and merge sorted lists. Once we have these, the mergesort itself is fairly short.


Binary Tree sort. The binary tree sort works by building a binary search tree from the input and then traversing it. A binary search tree has the following property at each tree node with value V any nodes in the left subtree have values = V If we can build such a tree from the input, than a inorder visit finds the elements in the correct order. Chez Scheme Version 8.4. Cadence Research Systems.


NOTE This version is out-of-date. Chez Scheme is an efficient and reliable implementation of Scheme based on an incremental optimizing compiler that produces efficient code and does so quickly. Chez Scheme Version 8.4 is an implementation of R6RS Scheme along with numerous language and programming environment extensions. Petite Chez Scheme is a complete Scheme system that is fully compatible with Chez Scheme but uses a fast interpreter in place of the compiler. It was conceived as a run-time environment for compiled Chez Scheme applications, but is also useful as a stand-alone Scheme system.


Programs written for Chez Scheme run unchanged in Petite Chez Scheme , as long as they do not depend specifically on the compiler, albeit not as quickly and without the debugging information generated by the compiler. In fact, Petite Chez Scheme is built from the same sources as Chez Scheme , with all but the compiler sources included. Both systems are copyrighted by Cadence Research Systems and are distributed under license. Use of Chez Scheme requires a license fee, while use of Petite Chez Scheme does not. Petite Chez Scheme is freely redistributable, while Chez Scheme may not be redistributed in any form.


The threaded versions are the same as the nonthreaded versions but support multithreading (and multiprocessing on computers with multiple processors or processor cores) based on Posix threads. They are not quite as fast as the nonthreaded versions for single-threaded applications. The 64-bit (IntelAMD) versions available on some platforms support larger address spaces but also require more memory to operate due to the need to store the larger 64-bit addresses.


Complete online documentation for Chez Scheme and Petite Chez Scheme is available at scheme. com in the form of two books The Scheme Programming Language, 4th Edition and the Chez Scheme Version 8 User's Guide . The former is also available in print form from MIT Press or from various online and local retailers. The Scheme Widget Library (SWL) is a free windowing and graphics package. It includes an object system, a threaded windowing and graphics library, and various tools, including an editor and a window-based REPL (read-eval-print loop) window with tcsh-like history.


It is distributed with online documentation in the form of the SWL Reference Manual , written by Oscar Waddell. SWL is copyrighted by Oscar Waddell. It is based on TclTk, which is copyrighted by the Regents of the University of California, Sun Microsystems, Inc.


, Scriptics Corporation, and other parties. SWL and TclTk are both open source and freely distributable. Details are contained within the SWL and TclTk distributions. SWL is designed to run only in the nonthreaded, 32-bit versions of Chez Scheme or Petite Chez Scheme . General Download Instructions.


Petite Chez Scheme and SWL may be downloaded at no cost via the links in the Petite Chez Scheme section andor Scheme Widget Library section below. Chez Scheme requires a license fee if you have purchased a license, it may be downloaded via the links in the Chez Scheme section below. Before you download Chez Scheme , Petite Chez Scheme , andor SWL, please read the appropriate license agreement(s) below.


Do not proceed with the installation unless you agree to the terms of the license agreement(s). Use of Chez Scheme , which is compiler-based, requires a license fee. It cannot be redistributed. Use of Petite Chez Scheme , which is interpreter-based, does not require a license fee, and it may be redistributed.


Petite Chez Scheme may be used as a stand-alone Scheme system or as an application-delivery vehicle for compiled code produced by Chez Scheme . Please refer to the license agreements and to Section 2.8 of the Chez Scheme Version 8 User's Guide for details. Instructions for installing Chez Scheme , Petite Chez Scheme , and SWL and Petite Chez Scheme are given in the installation instructions section. Distribution Contents. ReadMe Text version of distribution contents and installation instructions.


index. html HTML version of distribution contents and installation instructions. 8.4.pdf release notes for Version 8.4 (pdf format). binary sheme If you have trouble installing MITGNU Scheme, one common cause is that your download was corrupted.


Either try downloading it again, or check your download against the md5 checksums. Note that the documentation (in HTML form) comes with the distribution. Find it and create a bookmark in your web browser. Running MITGNU Scheme from CS machines. You will need to use your CS account (which you will be getting if you don't already have one).


You can remotely log in to the freebsd. remote pool from any computer on the internet. You might find it most convenient to log in from a UNIX computer, because you can then X-host windows running on the remote machine.


It is possible to do this through Windows, but you're on your own setting it up. You can also run emacs and scheme through a terminal (i. e., text) interface. There are three ways you can use MITGNU Scheme. In order of my recommendation, they are Run Scheme as an inferior process under gnu-emacs or xemacs. (This option is not available under Windows.


) Run Scheme through Edwin, the emacs-like editor that comes with MIT Scheme. (Works in Windows too) Run Scheme standalone (and edit your code in some other editor). I do not recommend running MITGNU Scheme standalone because there is no command line editing. Besides, I strongly recommend using emacs or Edwin to write your code, so you might as well run your code through them anyway. If you're using Windows, you don't have the choice of using Scheme through gnu-emacs.


However, you may want to download gnu-emacs anyway and use it to edit your code (because it is more user friendly than Edwin) and then using Edwin to run and debug. You can download emacs for Windows from ftp. gnu. orggnuwindowsemacs.


(You have your choice of a "bare", regular, or "full" binary. ) You may also be interested in the Emacs Windows FAQ. If you're using UNIX of some sort, I suggest using gnu-emacs. Here's a comparison of the advantages and disadvantages of Edwin and gnu-emacs As a gnu-emacs "power user", I find Edwin kind of annoying because of missing gnu-emacs features, so I work using the gnu-emacs interface and only use edwin for some debugging sessions.


(I usually use text debugging through gnu-emacs.) You may very well want the (relative) user-friendliness of emacs over Edwin, but if you know (or are willing to learn) emacs well enough that you don't need the pull down menus and such, then you may prefer Edwin. Running Scheme under gnu-emacs.


This file should replace the xscheme. elc file that comes with emacs. You'll have to find the appropriate directory on your system. On my Mandrake Linux system, this is the directory usrshareemacs21.3lisp .


(This step is not necessary if you are running MITGNU Scheme from the CS department machines.) Add the following line to your. Start (or restart) emacs, and it will load MIT Scheme's xscheme library. To exit emacs, type C-x C-c (that's control-x followed by control-c). To exit Edwin , type C-x C-c (that's control-x followed by control-c). Running Scheme standalone.


To exit scheme, type " (exit) ". Using EmacsEdwin with Scheme. Here are some other emacs resources you may find useful A tutorial introduction to emacs Indiana knowledge base Emacs quick reference There is extensive emacs (and other) documentation in emacs's "Info" mode which provides a sort of hypertext.


Type C-h i to get into Info mode. Of course, you'll have to learn a little bit about navigating in this mode. You may find better references for learning emacs on the web. (If so, let me know and I'll add links here.) The Scheme interaction buffer.


In the Scheme interaction buffer, you can type Scheme expressions and use one of the following commands to send them to the Scheme process to be evaluated M-z sends the current expression it looks for an open paren in the leftmost column and sends all the text from there up to the cursor position, and then to the right of the cursor until all parentheses are balanced. C-x C-e sends the expression to the left of the cursor it looks left from the cursor until it has a complete expression and then sends that to the scheme interpreter. Experiment with these commands until you understand how to send the expression you want to the Scheme interpreter. If you make an error, you will get a beep and some error messages about calling RESTART .


From here, you can get back to the top level of the Scheme interpreter by typing C-c C-c . You can also enter the (regular) debugger by typing (debug) . In Edwin, it may offer to start the debugger for you. In Edwin, M-p and M-n will take you through the previous commands sent to the scheme interpreter. In emacs, C-c C-y will yank the previous command.


Scheme program buffers. The M-z and C-x C-e commands work the same in this buffer as they do in a scheme interaction buffer. The result will be printed in the *scheme* buffer but also briefly displayed under the mode line of the emacsEdwin window.


These commands are useful for sending a single function to Scheme while you are developing a program. The M-o command sends the entire buffer to the scheme interpreter. EmacsEdwin will indent you code for you!


just press tab at the beginning of each line, and the cursor will move to the proper point to begin typing. When typing comments, M-j will act like the return key except that it will start the next line with the comment character. In emacs, M-q will reflow a paragraph and properly comment it. (Edwin can do this too, but see below for how to set this nondefault keybinding in Edwin.) For more information.


There are a number of other emacsEdwin commands that you will find useful. Refer to My Top 10 keybindings for EdwinEmacs below. See the GNU emacs section of the User's manual.


The key bindings for MIT Scheme under emacs are all supported in Edwin. Different Types Of Encoding Schemes – A Primer. As a software developer and especially as a web developer you likely seeuse different types of encoding every day.


I know I come across all sorts of different encodings all the time. However since encoding is never really a central concept, it is often glossed over and it can sometimes be confusing which encoding is which and when each one is relevant. Well, to put the confusion to bed once and for all, here is a quick primer on the different types of encoding schemes you’re likely to come across and when each one is relevant. Html encoding is mainly used to represent various characters so that they can be safely used within an HTML document (as the name might suggest). As you know there are various characters that are part of the HTML markup itself (such as <, > etc.


). To use these within the document as content you need to HTML encode them. There are two ways to HTML encode characters. HTML encoding defines several entities to represent characters that can be part of the markup e. g. You can also HTML encode any character using its ASCII code by prefixing it with &# and then using the ASCII decimal value, or prefixing it with &#x and using the ASCII hex value e. g. So, any time you need to encode characters within an html document itself, those are the ways to do it. This one is sometimes confused with URL encoding which is somewhat different. When dealing with URLs, they can only contain printable ASCII characters (these are characters with ASCII codes between decimal 32 and 126, i. e. hex 0x20 – 0x7E).


However, some characters within this range may have special meanings within the URL or within the protocol. URL encoding comes into play when we have either some characters with special meaning in the URL or want to have characters outside the printable range. To URL encode a character we simply prefix its hex value with a % e. g. Note that as part of the URL encoding scheme you can also represent a space using +. This is often confused with Unicode encoding due to the fact that both begin with %, however Unicode encoding is a little bit more involved. Unicode encoding can be used to encode a character from any language or writing system in the world.


Unicode encoding encompasses several encoding schemes. 16 bit Unicode encoding is somewhat similar to URL encoding (which is why they can sometimes be confused). To encode a character in 16 bit Unicode, you start with %u and then append the code point , of the Unicode character that you want to encode. A code point is basically just a 4 digit hexadecimal number that maps to a particular character that you’re trying to represent according to the Unicode standard (as you can imagine there are a LOT of these, have a look) e. g. UTF-8 is another type of Unicode encoding that uses one or more bytes to represent each character. When we need to UTF-8 encode characters for transmission over , we simply prefix each byte of the UTF-8 representation with a %. You can look up the UTF-8 representations for various characters by following the same link as above. As you can imagine there is much, much more that could be said about Unicode, but this is only a quick primer so I’ll leave it up to you to discover more for yourself. This one is fun and always useful to know about. Base64 is used to represent binary data using only printable characters. Usually it is used in basic authentication to encode user credentials, it is also used to encode e-mail attachments for transmission over SMPT. In addition Base64 encoding is sometimes used to transmit binary data inside cookies and other parameters, as well as often simply being used to make various data unreadable (or less easily readable) to prevent easy tampering. Base64 looks at data in blocks of 3 bytes which is 24 bits. These 24 bits are then divided into 4 chunks of 6 bits each, and each of those chucks is then converted to its corresponding base64 value. Since it deals with 6 bit chunks there are 64 possible characters each chunk can map to (hence the name). If the end of the string that is being encoded contains less than 3 characters (which means we can make 4 base64 characters), then we make as many base64 characters as we can and pad the rest with = characters. You can have a look at the base 64 alphabet here as well as many other places. Lets have a look at a quick example. If we want to convert the word ‘cake’ to base 64, we simply convert each of the characters to it’s ASCII decimal value and then get the binary value of each decimal value. In our case We now need to break up our binary string into chucks of 6 bits each, and since every 3 characters must make 4 base64 characters, we can pad with 0’s if we don’t have enough We now convert each one of the 6 bit binary values into it’s corresponding character, and in the case of an all zero value we use the padding character (=). In our case we get Which is the base64 encoded value of the word ‘cake’. Base64 encoding is usually pretty easy to spot as it looks fairly distinctive especially when it contains padding characters (=) on the end of the string. This one is easy, sort-of ). Basically with hex encoding, we simply use the hex value of every character to represent a collection of characters. So if we wanted to represent the word ‘hello’ it would be Pretty straight forward right? Well, it is only simple when we’re encoding printable ASCII characters (I mentioned those above). As soon as we need to encode international characters of some sort, it becomes more complicated as we have to go back to Unicode. I wouldn’t worry too much about this one, you’re a lot less likely to encounter it in your day-to-day web development and you now know what it might be if you see a bunch hex numbers stuck together. Hopefully this was helpful and you can refer to this – as a starting point – any time you have some encoding issues to sort out any confusion. If you think there are other encoding schemes (relevant to our day to day lives as software developers) I should have mentioned, feel free to let me know in the comments. good job, but I would prefer a better classification of the different Encoding scheme, and what is their status in relation with others encoding Scheme (e. g TLV based Encoding like ASN1 BER, DER, CER, Packed Encoding Rules, XML Encoding , etc…). I want to know using these encoders we encode and make a web page .. but how does a browser decodes it ? .. does all the browser have the ability to decode it ? Yeah, all browser should decode everything fine, at least all modern ones. binary sheme On this website you can find GrabIt, one of the easiest Usenet content downloaders in the world. With GrabIt you can search and download any content on USENET news servers, without downloading gigabytes of headers. You can also choose to save the downloaded files with a custom prefix and resume broken downloads. It can even shut down your computer for you when all downloads are completed. All features are controlled from an easy and intuitive interface. Made some changes to the backend system to improve the speed of the Members Only page. It should now come up immediately, even for long time members with multiple years worth of statistics. Fixed some small bugs and did some performance enhancements on GrabIt since the 1.7.4 release was a quick release to fix the GrabIt Search problems. The updated version is now available in the form of GrabIt 1.7.4 Beta 2. Happy grabbing! Did a lot of work on the GrabIt Search in the last few weeks. It is now better at searching for partial words. The search also returns better results for complex searches and exact matches with special characters. If something doesn't behave as expected please let us now using the support. I'm behind answering questions but I'm going to spend a lot of time to get back to everybody in the next few days. Usenet has been growing so quickly in the last month that I was having problems keeping the GrabIt Search engine up to date and running correctly. I installed some extra hardware last week to compensate, but now we have reached a technical limit inside GrabIt 1.7.3 so it can't download articles newer than January 2017 (The 'No articles for this Grab' error message). We have a problem with one of our main servers. So some of the services are unavailable at the moment. We are working on it. Copyright 1999-2017, Ilan Shemes. All rights reserved. GrabIt, Shemes and each of their logos are trademarks of Ilan Shemes. Binary Uno Scam Review. Binary Uno promises secure trading and offers generous bonuses to new clients. But is this broker legit or is Binary Uno a Scam ? We have made a research of Binary Uno and found out that they do not rate highly and there is no significant data about them. As an alternative we have selected our Top Safe Binary Brokers along with detailed reviews for safe and secure trading. Since we haven’t gathered enough information yet, we cannot confirm that Binary Uno is safe . You can Proceed to Safety OR Choose one of the Is-Scam approved and safe Binary Options Brokers Top Alternatives (5 Star Rating) * * * * * Binary Uno (Also known as BinaryUno Broker) is a newly established broker in the binary options industry having started their operations in the year 2011. This is why much is yet to be known about them. However, there are a few basic facts which we have gathered. Binary Uno is a broker, situated in Mahe, Seychelles. They provide both binary options and Forex trading options. Their website claims to have secure banking features and they also have 246 customer service. This means that they have one day off a week. Rest all the other days you can avail their services. Their platform is presently giving trading options to investors worldwide. This is why their platform is available in English, Arabic and Russian. One can also reach them via their customer support email which is email protected Overall the platform is used by both novice as well as experienced traders. This is the question many traders tend to ask. Being a not so well-established broker on the market they do raise some eyebrows. We did our own research to find out the truth. Being in the market for 4 long years one would expect to know the reality of a binary broker. However, we cannot say for sure if they are legitimate or not. They are not regulated or licensed, which puts a big question mark about their operations and we can recommend traders to open an account with regulated and approved binary options broker. Binary Uno Account types. Binary Uno has 5 types of accounts. The minimum deposit is one of the highest in the binary options industry – $1000. If you open an account with them you are complying with their legal terms. So make sure you read the conditions before opening account with them. The 5 types of accounts are Micro Any deposit between $1000 and $2000 will be under Micro account. Standard Deposits between $2000 and $5000 are under this type of account. Premium Ranging between $5000 and 10,000 it is considered the “best value” account under Binary Uno broker. VIP Any deposits above $10000 and under $100,000 fall under this account Elite Deposits above $100,000 come under this account type. Each of these account types has their own benefits. Of course the higher your deposit is, the more benefits you get, with the highest trade benefits lying with the Elite account holders. Binary Uno Trading Tools. You must choose the broker that provides you with a variety of trading tools. Unlike what most traders think, these are important to trade. The more resources you have, the varied choices you can make while trading. As per our research, Binary Uno is a web based trading platform. You don’t have any software to download. Live trading takes place on their platform itself. This is one of the reasons the website must be neat. Their website seems to be quite sorted. Also, they have their Android and iOS applications. Here you can easily carry the trades with you wherever you go. Binary Uno Complaints. First of all it is necessary to check the complaints against them. Usually that is a big sign that something fishy is going on with the brokers if it has too many unhappy traders. Visit Is-Scam Approved Broker. 35 Responses to “Binary Uno Scam Review” I have opened an account with binaryuno and from what i have read i am worried because i have noticed there communication is woeful also you now can open an account for 250 usd any advice would be appreciated cheers. no communication trying to get hold of them is a nightmare. I registered with Zulander Hack and it was immediately sent to Binary Uno without my knowledge. Once my account was opened, I immediately received a call….immediately, with promised of support and training to proceed. When I questioned my option for Zulander Hack and where I found it, I was told they would discuss it the next day. I contacted them for the next 6 days straight with promises of someone getting back to me right away and on the 6 day an account manager called me back with some fast talk and promises. I again asked about my Zulander Hack option and was again told he would send me info and never did. BUT the next day, my money was gone. I have emailed, called and chatted with them now no less than 20 times and no one will call me back. SCAM….. Absolutely. binaryuno didn’t work for me! it was a total waste of money and time. i didn’t invest much, so I didn’t lose much, but I am not satisfied. I to have have registered with this company, I was asked to give my credit card details, to pay the 250 US dollars. someone then rang me from switzaland to go over my details, & to confirm the payment, I was then informed that someone would be ringing me within the next 48 hours to go over my account, I also Recieved an email asking me to send them 3 copy’s of my personal ID, my passport, drivers licence, my address, & card details, I don’t feel happy about disclosing these. Has anyone else had dealing with these people. Are they the genuine deal or is this a scam, I have a deposit with them for $1750 and have won about $1100. I am having great difficulty getting my money back. Their withdrawal system does not work. Their customer service merely keeps referring back the the account manager who tells me very little other than saying my money is being held at the bank and cannot be released for 3 months. I have severe doubts about this company. DON’T DEAL WITH THEM!! hey everyone, i think this one was a bitter disappointment. complete bias! what do they mean that they can not give me my money. Did any one else get asked to send copies of there personal I D including there PASSPORT, DRIVING LICENCE, & credit card details, & copy of a utility bill, any input would be grateful thanks. While I started my opening account for $250. They told me if you are not satisfied with us , u can apply for money back of 100 percent. is it true? Hi everyone, It took broker around 10 minutes to transfer US $ 5,000.00 from my credit card to trade. BUT to-date, 05 may 2016, I just could not get back my US $ 5,000.00. I really have doubts about the company. BINARY UNO is a scam. please for the love of God stay away, infact never trade with a binary broker until you think you are sneaky enough to outwit them, there is this conflict of profit, if you get money they lose money, so they purposely set up trades to make you lose and take all your money after, please don’t put anymore into your accounts and don’t talk to them anymore, record all phone calls and report those bastards to the proper authorities, please. Yes binary UNO simply does not want to give you your money back. I am still struggling with them to get my money out so I can close my account and go to a reputable company that has a withdrawl process online. Total b***t. I signed up for a $250 deal, gave them another $250. Now they have decided to steal from credit card account without authorisation or notification and just fleeced me again for $250. All US dollars. Every single trade they made on my behalf failed dismally. I dealt with these rip off artists, started with $250 and then lost, I got s***d in further, won some trades thought things were on the good, tried to get some of my monies back and got a song and dance, had some monies left, wanted out, did one last trade and lost it ALL, I was p****d !! anyone know their address in London GB ? cant seem to find it only there HQ in the Caribbean, guess they are the smart ones that Con poor folks just trying to get ahead. Stay AWAY from thm…lesson learned for sure. Just been scammed by them, someone calling himself Brian White the so called finance manager assured me my money was mine and I could withdraw it whenever I wanted but when I tried to all sorts of excusses came up. Let your friends know and email everyone they will get others before they are shut down. They called me trying to persuade me, from tel nr. It sounded to good to be true, and it probably is. The guys that called me were not. very informed to answer my questions….they talk a lot of s***. Hi, Foolishly, I opened an account with BinaryUno thinking it was Zulander. I should have read the reviews before embarking. It just took me by surprise. The account manager has contacted me and he sounded like the same person who was trying to help me to fill in the application process?? Please refrain yourself from joining. The company is just untested. I am trying to cancel my application and hope for a refund. I’ve just been on the phone with my so called account manager and he was pushing so hard to get me to invest a further £6,000 so I could get to the VIP status. He said he could do a special deal so that I could have a an Insurance backed investment that was guaranteed not to lose. He also said I could get my money out any time. When I went on line and tried to draw out my full balance of approx. 1480 euros, it would only let me have 250 euros. I think it’s a con and I would advise you to avoid big time. They will sell their souls to get your dosh. I cannot believe I fell for this crap. Lost all my savings. Has anybody reported them to FCA or anybody else? How do I get my money back? Definitely disappointed with this Broker. However, nice review, guys. Continue in the same spirit. how can they expect people to trust them if theydonot offer demos? i mean, cmmon, you have to know hwat you are getting into and all. i wont put my money if i dont know how it works. Harry, we do not recommend the BinaryUno broker. If you want to learn more about binary options trading you can visit our FREE educational section – here. These guys are definitely suspect. I stupidly opened an account with them and twice even though my options were in the money the day before expiry the strike price changed creating a “loss” for me. I would suggest that going with these guys is fraught with danger and I am glad my experience was only a $5k loss. I will be closing the account asap and council anyone thinking of opening an account with them think again and go with a reputable trader that meets all licensing requirements. Thank God I was inspired to search some reviews before giving this b****s my last money. Several minutes ago I made an account with binary uno or Zealander Hack, whatever… some agent called me right away from Switzerland and tried to push me to transfer my money to their platform. He was very rude and sound suspicious. So I told him that I need to think about it, then he got nervous and told me that I got several hours to think about it and that they make me a favour… haha 😀 Thanks you for your credentials. You saved me! hey thx guys!! i was called up by them from london 3 times in 3 different days, they keep pushing me to deposit my funds, although i disclosed to them my card profile but the fund was not enough so i got a decline. they say i can make profits and give me all sorts of example, and i can withdraw money anytime i want. they even direct me to their so called manager. so i have spoken with 2 different person so far. that was lucky enough, i was convinced actually. so tomorrow when they call me again i am gonna reject. Hi im sure that they are only want to steal my Money they have called me over 20 times from a London number but when i dittent want to anwsner The phone The same girl start calling from a number from norway they are pressing Hard for gettin me to send them money scam scam scam. Torben, I am sorry to hear that you have been pushed to invest in this brokerage firm. I hope you enjoy trading with another more trusted and reliable binary options broker! This is one great SCAM. They put up phony ads that take you to their site, I told them I was 82 years and they told me I had nothing to worry as I WOULD EARN MONEY GUARANTEED. What a lot of BS They even changes brokers 5 times. THEY ARE GREAT SCAMMERS WIT A WEL REHEARSED PATTER< STAY CLEAR MY MONET WAS GONE IN THE FIRST TRADE. BINARY UNO IS A SCAM – I invested $3250 and made trades with them netting a total of $5560. There is no proper withdraw system, however they want you to keep feeding money into the account. I was not able to get all my money back and they have subsequently reset my account to ZERO. STAY FAR AWAY FROM THEM. all empty promises. they force you to put money in the account use you for all they can and as soon as you start asking questions they sink your account. some guy named Paul Fisher” one of his co-wokers said he didnt work there anymore, then he died, then a few month after hes back there working… Steal peoples hard earn money! Please people do not trust these people I have lost my 5k just like that. I have tried calling and they refuse to answer the line. Anyway lesson learned. This is definitely a scam. You may as well flush your money down the toilet. I invested £250 with them and was immediately rung by a broker, Bryan. As soon as I started speaking to him alarm bells rang. He was trying to get me to invest a further £8000 to £10000 pounds. I said i did not want to pursue it and requested my money back, which had been deposited less than an hour before. I received a further phone call from Bryan a few days later. He said they could not refund my money until I had provided ID because of money laundering. I reluctantly did this and lo and behold all my money instantly disappeared except for £10.25. All my emails have gone unanswered. I was promised a callback within 48 hours after a support chat online and that never happened either. Binaryuno will not commit anything to email. As far as I am concerned that is an admission of guilt. Any money you deposit with these people just goes towards their wages. Don’t go near them. Is there actually anyone out there who has not lost all their money? And more importantly if they have made any money have they been able to withdraw it from their account? This is embarrassing about what has happened to me I must admit. Yes, BinaryUno has scammed me too. They took USD250 out of my account with my consent but another USD250 without my consent. They have also asked for copies of documents such as utility bill, copy of bank card, etc. After realizing what was happening, I had to cancel my bankcard, and my complaints have not been successful. I have bank statement proving that the money was taken out of my account but they are denying it. They are very disrespectful and I have been receiving insulting messages from a so called “Broker”. They are unregulated, operating from Seychelles, and I don’t think they are using real names. You might be dealing with one person as the Broker, Support desk person, and so on. binary sheme I'm looking for a version numbering scheme that expresses the extent of change, especially compatiblity. Apache APR, for example, use the well known version numbering scheme. Maven suggests a similar but more detailed schema Where is the Maven versioning scheme defined? Are there conventions for qualifier and build number? Probably it is a bad idea to use maven but not to follow the Maven version scheme . What other version numbering schemes do you know? What scheme would you prefer and why? Here is the current Maven version comparison algorithm, and a discussion of it. As long as versions only grow, and all fields except the build number are updated manually, you're good. Qualifiers work like this if one is a prefix of the other, longer is older. Otherwise they are compared alphabetically. Use them for pre-releases. Seconding the use of semantic versioning for expressing compatibility major is for non-backwards compatible changes, minor for backward-compatible features, patch for backward-compatible bugfixes. Document it so your library users can express dependencies on your library correctly. Your snapshots are automated and don't have to increment these, except the first snapshot after a release because of the way prefixes are compared. I would recommend the Semantic Versioning standard, which the Maven versioning system also appears to follow. Please check out, In short it is <major>.<minor>.<patch><anything_else> , and you can add additional rules to the anything else part as seems fit to you. eg. -<qualifier>-<build_number> . Purely for completeness, i will mention the old Apple standard for version numbers. This looks like major version . minor version . bug version . stage . non-release revision . Stage is a code drawn from the set d (development), a (alpha), b (beta), or fc (final customer ship - more or less the same as release candidate, i think). The stage and non-release revision are only used for versions short of proper releases. So, the first version of something might be 1.0.0. You might have released a bugfix as 1.0.1, a new version (with more features) as 1.1, and a rewrite or major upgrade as 2.0. If you then wanted to work towards 2.0.1, you might start with 2.0.1d1, 2.0.1d2, on to 2.0.1d153 or whatever it took you, then send out 2.0.1a1 to QA, and after they approved 2.0.1a37, send 2.0.1b1 to some willing punters, then after 2.0.1b9 survived a week in the field, burn 2.0.1fc1 and start getting signoffs. When 2.0.1fc17 got enough, it would become 2.0.1, and there would be much rejoicing. This format was standardised enough that there was a packed binary format for it, and helper routines in the libraries for doing comparisons.

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