The bar code 128 subset C the number of digits should always be even.
How to print bar code with odd character? example:
1517072011170323703007607271023031701
Using DelhiXE7 and Fortes Report 4.0 VCL
Is this question related to finnish banking barcode ?
if YES: You must pad the data to be of even length, according to the documentation published by the bank. Switching the barcode encoding system is not allowed by the relevant banking standard.
reference URL: http://www.finanssiala.fi/maksujenvalitys/dokumentit/Bank_bar_code_guide.pdf
if NO: Just first encode the even-length part, then switch to code 128A or 128B using the encoding switching special "character" and finally encode the last digit using either 128A or 128B, whichever serves you better.
Related
I am working with nom version 6.1.2 and I am trying to parse Strings like
A 2 1 2.
At the moment I would be happy to at least differentiate between input that fits the requirements and inputs which don't do that. (After that I would like to change the output to a tuple that has the "A" as first value and as second value a vector of the u16 numbers.)
The String always has to start with a capital A and after that there should be at least one space and after that one a number. Furthermore, there can be as much additional spaces and numbers as you want. It is just important to end with a number and not with a space. All numbers will be within the range of u16. I already wrote the following function:
extern crate nom;
use nom::sequence::{preceded, pair};
use nom::character::streaming::{char, space1};
use nom::combinator::recognize;
use nom::multi::many1;
use nom::character::complete::digit1;
pub fn parse_and(line: &str) -> IResult<&str, &str>{
preceded(
char('A'),
recognize(
many1(
pair(
space1,
digit1
)
)
)
)(line)
}
Also I want to mention that there are answers for such a problem which use CompleteStr but that isn't an option anymore because it got removed some time ago.
People explained that the reason for my behavior is that nom doesn't know when the slice of a string ends and therefore I get parse_and: Err(Incomplete(Size(1))) as answer for the provided example as input.
It seems like that one part of the use declarations created that problem. In the documentation (somewhere in some paragraph way to low that I looked at it) it says:
"
Streaming / Complete
Some of nom's modules have streaming or complete submodules. They hold different variants of the same combinators.
A streaming parser assumes that we might not have all of the input data. This can happen with some network protocol or large file parsers, where the input buffer can be full and need to be resized or refilled.
A complete parser assumes that we already have all of the input data. This will be the common case with small files that can be read entirely to memory.
"
Therefore, the solution to my problem is to swap use nom::character::complete::{char, space1}; instead of nom::character::streaming::{char, space1}; (3rd loc without counting empty lines). That worked for me :)
i am trying to show \u1F318 in my application. but iphone app just use first 4 digit and and create the image. Can any one guide me what i am doing wrong to show image of unicode \u1F318 in iPhone.
[(OneLabelTableViewCell *)cell textView].text = #"\u1F318";
out in application is
Note: this answer is based on my experience of Java and C#. If it turns out not to be useful, I'll delete it. I figured it was worth the OP's time to try the options presented here...
The \u escape sequence always expects four hex digits - as such, it can only represent characters in the Basic Multilingual Plane.
If this is Objective-C, I believe that supports \U followed by eight hex digits, e.g. \U0001F318. If so, that's the simplest approach:
[(OneLabelTableViewCell *)cell textView].text = #"\U0001F318";
If that doesn't work, it's possible that you need to specify the character as a surrogate pair of UTF-16 code points. In this case, U+1F318 is represented by U+D83C U+DF18, so you'd write:
[(OneLabelTableViewCell *)cell textView].text = #"\uD83c\uDF18";
Of course, this is assuming that it's UTF-16-based...
Even if that's the correct way of representing the character you want, it's entirely feasible that the font you're using doesn't support it. In that case, I'd expect you to see a single character (a question mark, a box, or something similar to represent an error).
(Side-note: I don't know what # is used for in Objective-C. In C# that would stop the \u from being an escape sequence in the first place, but presumably Objective-C is slightly different, given the code in your question and the output.)
We need to parse the GS1 datamatrix barcode which will be provided by other party. We know they are going to use GTIN(01), lot number(10), Expiration date(17), serial number (21). The problems is that barcode reader output a string, the format is like this 01076123456789001710050310AC3453G321455777. Since there is not separator and both serial number and lot number are variable length according to GS1 standard, we have trouble to identify segments. My understanding is that it seems like the best way to parse is to embed the parser in the scanning device, not from the application. But we didn't plan an embed software yet. How can I implement the parser? Any suggestions?
There should be a FNC1 character at the end of a variable-length field that is not filled to maximum; so that FNC1 will appear between the G3 and the 21.
FNC1 is invisible to humans but can be detected by scanners and will be reproduced in the string reported by the scanner. Simply send the string directly to a text file and examine the text with a hex reader. the FNC1 should be obvious.
If you can, it might be an idea to swap the sequence of the 21 field and the 10 field since you appear to be using a pure-numeric for 21. This would make the barcode produced a little shorter.
One way to deal with this is to program the scanner to replace FNC1 with space or another plain text character before sending it to your application. The scanner manufacturer usually provides a tool to produce programming bar codes that can do simple substitutions in the scanner. Then you can parse the data without having to handle special characters.
I'm reading barcodes in an iOS app using the built-in barcode recognizer.
I scanned the barcode on a bottle of prescription medication. I'm expecting this barcode to resolve to a number that I can use to refer to a medication database. What iOS tells me is this:
type: org.iso.Code128
string value: xAAAJ5wEA
I checked the Wikipedia entry for "Code 128" but I'm still not sure how to decode the string further. I'm assuming it's a "Code Set C" value, but I don't see how to translate it into the series of decimal numbers I'm expecting.
Any help would be appreciated, thanks.
Code 128 is a compact one-dimensional barcode primarily used for alphanumeric barcodes. All 128 characters in ASCII are encoded.
In this case, your result is almost certainly a barcode encoding "xAAAJ5wEA". That barcode looks like this Code 128 barcode:
Prescription medication tend to encode a great deal of information. Possibly the customer record number, how many refills, what medication, etc. It can be used to pull up all information about the customer in the pharmacy computers. Precisely how this data is encoded will likely be based on the pharmacy policies. Therefore you will need to customize your software for each pharmacy.
Considering this Arabic word(جبل) made of 3 letters .
-the first letter is جـ,
-name is (ǧīm),
-its Unicode value is FE9F when its in the beginning,
-its basic value is 062C and
-its isolated value is FE9D but the last two values return the same shape drawing ج .
Now, Whenever I try to get it as a single character -trying many different ways-, Delphi returns the basic Unicode value.
well,that makes sense,but what happens to the char with transformation? It is a single char too..Looks like it takes the transformed value only when it is within a string, but where? how to extract it?When and which process decides these values?
Again the MAIN QUESTION:
How can I get the Arabic letter or its Unicode value as it is within a string?
just for information: Unlike English which has tow cases for its letters(Capital and Small), Arabic has four cases(Isolated, Beginning,Middle And End) with different rules as well.
I'm not sure I understand the question. If you want to know how to write U+FE9F in Delphi source code, in a modern Unicode version of Delphi. Do that simply like so:
Char($FE9F)
If you want to read individual characters from جبل then do it like this:
const
MyWord = 'جبل';
var
c: Char;
....
c := MyWord[1];//this is U+062C
Note that the code above is fine for your particular word because each code point can be encoded with a single UTF-16 WideChar character element. If the code point required multiple elements, then it would be best to transform to UTF-32 for code point level processing.
Now, let's look at the string that you included in the question. I downloaded this question using wget and the file that came down the wires was UTF-8 encoded. I used Notepad++ to convert to UTF16-LE and then picked out the three UTF-16 characters of your string. They are:
U+062C
U+0628
U+0644
You stated:
The first letter is جـ, name is (ǧīm), its Unicode value is U+FE9F.
But that is simply incorrect. As can be seen from the above, the actual character you posted was U+062C. So the reason why your attempts to read the first character yield U+062C is that U+062C really is the first character of your string.
The bottom line is that nothing in your Delphi code is transforming your character. When you do:
S[1] := Char($FE9F);
the compiler performs a simple two byte copy. There is no context aware transformation that occurs. And likewise when reading S[1].
Let's look at how these characters are displayed, using this simple code on a VCL forms application that contains a memo control:
Memo1.Clear;
Memo1.Lines.Add(StringOfChar(Char($FE9F), 2));
Memo1.Lines.Add(StringOfChar(Char($062C), 2));
The output looks like this:
As you can see, the rendering layer knows what to do with a U+062C character that appears at the beginning of the string.
Shaping of Arabic characters for presentation in Windows is served by the Uniscribe services (USP10.dll).
UniScribe
You may find the following blog post useful:
Roozbeh's Programming Blog
I don't think you can do it using string/char related methods. But using pchar, maybe can you access the memory and read the Pword values directly
EDIT: After discussing with David, I think that you will always get the basic/isolated value of the letter. The fact that begin or end glyph is used, is probably just handled by the display framework of the OS