Whenever I fetch text in any language, the output has this extra character (arrow symbol), which is not there in the image. I'd like to understand, why it is present, and how to avoid these extra characters in the output.
That's most likely the implicit page separator \f, which Notepad shows as that arrow. For some details on that topic, see: What page separators are used in txt output by Tesseract 4.0.0?
You can try to add -c page_separator="" to your config. You shouldn't see that symbol in your output then. Please notice, page breaks are entirely disabled then also.
In a mapping editor, the display is correct after the legacy to unicode conversion for DEVANAGARI text shown using a unicode font (Arial Unicode MS). However, in MS-WORD, the display isn't as expected for the same unicode text in the unicode font (Arial Unicode MS) or any other Devanagari unicode fonts. The expected sequence of unicodes are provided as per the documentation. The sequence can be seen on the left-hand side table.
Please let me know where I am going wrong.
Thanks for your help!
Does your map have to insert the zero_width_joiner? The halant (virama) by itself is enough to get the half-consonant (for some combinations) and in particular, it may be that Word is using the presence of the ZWJ to keep them separate.
If getting rid of the ZWJ doesn't help, another possibility is that Word may be treating the individual characters of the text string as individual "runs" of text.
If those first 4 characters are not in a single run, this can happen.
[aside: the way to tell if it's being treated as a single run, is to save the document as an xml file and then open it with something like notepad++ and look at the xml "w:t" element (IIRC) associated with these characters. If they're all in separate w:t elements, it means they're in separate runs. In that case, you might need to copy the text from Word to some other tool (e.g. Notepad++) and then copy it from there and paste it back in Word -- that might cause it to be imported into Word in a single run.
So this web page is rendering with these symbols and they are found throughout this website/application but on no other sites. Can anyone tell me
What this symbol is?
Why it is showing up only in one browser?
That character is U+2028 Line Separator, which is a kind of newline character. Think of it as the Unicode equivalent of HTML’s <br>.
As to why it shows up here: my guess would be that an internal database uses LSEP to not conflict with literal newlines or HTML tags (which might break the database or cause security errors), and either:
The server-side scripts that convert the database to HTML neglected to replace LSEP with <br>
Chrome just breaks standards by displaying LSEP as a printing (visible) character, or
You have a font installed that displays LSEP as a printing character that only Chrome detects. To figure out which font it is, right click on the offending text and click “Inspect”, then switch to the “Computed” tab on the right-hand panel. At the very bottom you should see a section labeled “Rendered Fonts” which will help you locate the offending font.
More information on the line separator, excerpted from the Unicode standard, Chapter 5.8, Newline Guidelines (on p. 12 of this PDF):
Line Separator and Paragraph Separator
A paragraph separator—independent of how it is encoded—is used to indicate a
separation between paragraphs. A line separator indicates where a line break
alone should occur, typically within a paragraph. For example:
This is a paragraph with a line separator at this point,
causing the word “causing” to appear on a different line, but not causing
the typical paragraph indentation, sentence breaking, line spacing, or
change in flush (right, center, or left paragraphs).
For comparison, line separators basically correspond to HTML <BR>, and
paragraph separators to older usage of HTML <P> (modern HTML delimits
paragraphs by enclosing them in <P>...</P>). In word processors, paragraph
separators are usually entered using a keyboard RETURN or ENTER; line
separators are usually entered using a modified RETURN or ENTER, such as
SHIFT-ENTER.
A record separator is used to separate records. For example, when exchanging
tabular data, a common format is to tab-separate the cells and to use a CRLF
at the end of a line of cells. This function is not precisely the same as line
separation, but the same characters are often used.
Traditionally, NLF started out as a line separator (and sometimes record
separator). It is still used as a line separator in simple text editors such as
program editors. As platforms and programs started to handle word processing
with automatic line-wrap, these characters were reinterpreted to stand for
paragraph separators. For example, even such simple programs as the Windows
Notepad program and the Mac SimpleText program interpret their platform’s NLF
as a paragraph separator, not a line separator. Once NLF was reinterpreted to
stand for a paragraph separator, in some cases another control character was
pressed into service as a line separator. For example, vertical tabulation VT
is used in Microsoft Word. However, the choice of character for line separator
is even less standardized than the choice of character for NLF. Many Internet
protocols and a lot of existing text treat NLF as a line separator, so an
implementer cannot simply treat NLF as a paragraph separator in all
circumstances.
Further reading:
Unicode Technical Report #13: Newline Guidelines
General Punctuation (U+2000–U+206F) chart PDF
SE: Why are there so many spaces and line breaks in Unicode?
SO: What is unicode character 2028 (LS / Line Separator) used for?
U+2028 on codepoints.net A misprint here says that U+2028 was added in v. 1.1 of the Unicode standard, which is false — it was added in 1.0
I found that in WordPress the easiest way to remove "L SEP" and "P SEP" characters is to execute this two SQL queries:
UPDATE wp_posts SET post_content = REPLACE(post_content, UNHEX('e280a9'), '')
UPDATE wp_posts SET post_content = REPLACE(post_content, UNHEX('e280a8'), '')
The javascript way (mentioned in some of the answers) can break some things (in my case some modal windows stopped working).
You can use this tool...
http://www.nousphere.net/cleanspecial.php
...to remove all the special characters that Chrome displays.
Steps:
Paste your HTML and Clean using HTML option.
You can manually delete the characters in the editor on this page and see the result.
Paste back your HTML in file and save :)
I recently ran into this issue, tried a number of fixes but ultimately I had to paste the text into VIM and there was an extra space I had to delete. I tried a number of HTML cleaners but none of them worked, VIM was the key!
9999years answers is great.
In case you use Symfony with Twig template I would recommend to check for an empty Twig block. In my case it was an empty Twig block with an invisible char inside.
The LSEP char was only displayed on certain device / browser.
On the other I had a blank space above the header and I could not see any invisible char.
I had to inspect the GET request to see that the value 1f18 was before the open html tag.
Once I removed an empty Twig block it was gone.
hope this can help someone one day ...
My problem was similar, it was "PSEP" or "P SEP". Similar issue, an invisible character in my file.
I replaced \x{2029} with a normal space. Fixed. This problem only appeared on Windows Chrome. Not on my Mac.
I agree with #Kapil Bathija - Basically you can copy & paste your HTML code into http://www.nousphere.net/cleanspecial.php and convert it.
Then it will convert the special characters for you - Just remove the spaces in between the words and you will realize you have to press backspace 2x meaning there is an invalid character that can't be translated.
I had the same issue and it worked just fine afterwards.
You can also copy the text, paste it into a HTML editor such as Coda, remove the linebreak, copy it and paste it back into your site.
Video here: https://www.loom.com/share/501498afa7594d95a18382f1188f33ce
Looks like my client pasted HTML into Wordpress after initially creating it with MS-Word. Even deleting the and visible spaces did not fix the issue. The extended characters became visible in vi/vim.
If you don't have vi/vim available, try highlighting from 2 chars before the LSEP to 2 chars after the LSEP; delete that chunk, and re-type the correct characters.
While trying to parse some unicode text strings, I'm hitting an invisible character that I can't find any definition for. If I paste it in to a text editor and show invisibles, I can see that it looks like a bullet point (• alt-8), and by copy/pasting them, I can see it has an effect like a space or tab, but it's none of those.
I need to test for it, something like...
if(uniChar == L'\t')
But of course I need to provide something to match to.
It has bytes 0xc2 0xa0 in UTF-8.
If no-one has a definition, is there any devious way to test for something I can't define!?
(I happen to be using NSStrings in Objective-C, OSX, Xcode, but I don't think that has any bearing.)
Bytes C2 A0 in UTF-8 encode U+00A0 ɴᴏ-ʙʀᴇᴀᴋ sᴘᴀᴄᴇ, which can be used, for example, to display combining marks in isolation. It is as a named HTML entity. It is almost the same as a U+0020 sᴘᴀᴄᴇ, except it prevents line breaks before or after it, and acts as a numerical separator for bidirectional layout.
The dot you see when you ask a text editor to show invisibles just happens to be what glyph the text editor chose to display spaces. It does not mean the character in question is U+00B7 ᴍɪᴅᴅʟᴇ ᴅᴏᴛ, which is definitely not invisible.
In code, if you have it as a unichar, you can compare it to L'\x00A0'.
We have some XML file that contains some invalid character, and the program says neither which file it is, nor which line number or character offset. It would be a few seconds work to fix the problem if I could just search for exactly that character, but I cannot find how to express a Unicode character in the file search (or at least I assume so, since the search returns nothing).
Neither 0x1e nor \u001e seem to match anything.
[EDIT] I mean, I can still change the code, and eventually find which file it is by catching the Exception, and using some kind of script/tool to find where exactly the character is, but I do believe it should be possible to search with Unicode in Eclipse, and that is what I am asking in this question.
It may be a problem with the character encoding.
As you're going to need to perform a global / site-wide search to find the , you'll probably need to set the global text file encoding:
Preferences -> Workspace -> Text file encoding
This option may be under the 'General' section in Eclipse, depending on your setup and installed plugins etc.
Ensure that the encoding is set to UTF-8.
You will also need to escape the unicode character sequences, like so:
\u2665
(which I see you have tried)