I would like to display list.emptyqm() as list.empty?() in function names for specific language. So, two symbols qm if they are at the end of the function name should be displayed as ? (possibly some unicode symbol looking similar to question mark).
Is that possible in VSCode?
The VSCode already knows that piece of text is string, or function-name/keyword/variable-name (as it highlights it properly), so the ligature should be displayed only if qm are the last
characters of function-name/keyword/variable-name. It shouldn't be displayed in the middle of the function name, like aqma() shouldn't be displayed as a?a().
You seem to misunderstand what a ligature is. A ligature describes how two individual letters can be combined to form a visual pleasing appearance. A ligature never changes the syntax of a text. Hence, converting qm to ? is a completely different thing.
Replacing text in vscode is of course possible, for instance as part of the format command. You can register your own formatter and determine the text edit actions that you want to be applied, including the transformation of these character sequences.
Related
Prettify symbols is an extension in vscode that changes a sequence of characters visually without affecting what the code does. For example, visually changing --> to ⟶ while the coding language uses -->. However, this extension creates seemingly random symbols throughout the file and is no longer maintained. Therefore, that extension is hardly usable at the moment.
Fira Code uses ligatures to do something similar (or the same I am not sure).
What other ways are there to visually change a string of letters ? I am mostly interested in solutions for vscode. As an example I would like to change
~[\Omega]
to
Ω
visually for the user but the code uses the original ~~[\Omega]
[EDIT: I found this github page that adds ligatures to a font. Unfortunately when one creates a ligature where the "hidden" symbol contains many characters and the visible symbol contains a few symbols, a long trace of spaces replacing the missing characters is left behind. The prettify symbols extension mentioned before does not have these spaces. For those that are still interested in making ligatures with the second link, this Fira code font page shows the names of symbols in Fira code. That might be helpful when making a new font from Fira code using the first link of this edit (which is the second link of the question) ]
The way the unicode symbol is displayed depends on whether I use the White Heavy Check Mark or the Negative Squared Cross Mark before it or not. If I do, the Warning Sign is coloured. If I put a space between the symbols, I get the mono-coloured text-like version.
Why does this behaviour exist and can I force the coloured symbol somehow?
I tried a couple of different REPLs, the behaviour was the same.
; No colour
(str (char 0x274e) " " (char 0x26A0))
; Coloured
(str (char 0x274e) "" (char 0x26A0))
Clojure unicode display.
I expect the symbol being displayed the same way regardless of which symbol comes before it.
Why does this behaviour exist
A vendor thought it would be a neat idea to render emoji glyhps in colour. The idea caught on.
https://en.wikipedia.org/wiki/Emoji#Emoji_versus_text_presentation
can I force the coloured symbol somehow
U+FE0E VARIATION SELECTOR-15 and U+FE0F VARIATION SELECTOR-16
http://mts.io/2015/04/21/unicode-symbol-render-text-emoji/
Unicode is about characters (code points), not glyphs (see it as "image" of a character).
Fonts are free to (and should) merge nearby characters into a single glyphs. In printed Latin scripts this is not very common (but we could have it e.g. ff,fi, ffi), without considering the combining codepoints which, per definition, should combine with other characters, to get just one glyph,
Many other scripts require it. Starting to cursive Latin scripts, but most cursive scripts requires changes. E.g. Arabic has different glyphs of initial, final, middle or separated character (+ special combination, common to cursive scripts). Indian scripts have similar behaviours.
So the base of Unicode has already this behaviour, and modern good fonts should be able to do it.
It was not so late, that emojii uses such functionality, e.g. country letters/flags to other common cases.
Often the Unicode documentation tell you of such possibilities, and the special code points which could change behaviour, but then it is task of the font to fullfil the expected behaviour (and to find good glyphs).
So: character (as unicode code point) is not one to one to a design (glyphs).
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.
Does unicode have characters in it similar to stuff like the things formed by the <kbd> tag in HTML? I want to use it as part of a game to indicate that the user can press a key to perform a certain action, for example:
Press R to reset, or S to open the settings menu.
Are there characters for that? I don't need anything fancy like ⇧ Shift or Tab ⇆, single-letter keys are plenty. I am looking for something that would work somewhat like the Enclosed Alphanumerics subrange.
If there are characters for that, where could I find a page describing them? All the google searches I tried turned only turned up "unicode character keyboard shortcuts" stuff.
If there are not characters for that, how can I display something like that as part of (or at least in line with) a text string in Processing 2.0.1?
(The rendering referred to is not the default rendering of kbd, which simply shows the content in the system’s default monospace font. But e.g. in StackOverflow pages, a style sheet is used to format kbd so that it looks like a keycap.)
Somewhat surprisingly, there is a Unicode way to create something that looks like a character in a keycap: enter the character, then immediately COMBINING ENCLOSING KEYCAP U+20E3.
Font support to this character is very limited but contains a few free fonts. Unfortunately, none of them is a sans-serif font, and the character to be shown inside should normally appear in such a font – after all, real keycaps contains very simple shapes for characters, without serifs. And generally, a character and an enclosing mark should be taken from the same font; otherwise they might be incompatible. However, it seems that taking the normal character from the sans-serif font (FreeSans) in GNU Freefont and the combining mark from the serif font (FreeSerif) of the same source creates a reasonable presentation:
I’m afraid it won’t work here in text, but I’ll try: A⃣ .
Whether this works depends on the use of suitable fonts, as mentioned, but also on the rendering software. Programs have been rather bad at displaying combining marks, but there has been some improvement. I tested this in Word 2007, where it works OK, and also on web browsers (Chrome, Firefox, IE) with good results using code like this:
<style>
.cap { font-family: FreeSerif; }
.cap span { font-family: FreeSans; }
</style>
<span class="cap"><span>A</span>⃣</span>
It isn’t perfect, when using the fonts mentioned. The character in the cap is not quite centered. Moreover, if I try to use the technique e.g. for the character Å (which is present on normal Nordic keyboards), the ring above A extends out of the cap. You could tweak this by setting the font size of the letter in the cap to, say, 85% of the font size of the combining mark, but then the horizontal position of the letter is even more off.
To summarize, it is possible to do such things at the character level, but if you can use other methods, like using a border or a background image for a character, you can probably achieve better rendering.
I'm trying to gather a Unicode list of all the 'o' like shapes in the Hindi character-set. In fact, a list of any characters (in any language) that makes uses of separate characters to indicate an accent would be better.
I intend to use this unicode-list in a RegExp.
I been trying to edit a list of character-ranges by outputting them in an Input TextField, but editing this text causes weird issues (the keyboard-cursor isn't place on the correct character, selections suddenly dissappear / incorrectly warps... in other words... HINDI HELL!)
I've tried this with Notepad++ too, but although it was more responsive, it eventually crapped out on me like it did in the Flash Player textfield. This seems to occur especially while removing the [] block (nulls?) characters. Some of them trigger odd behaviors.
Anyways, all I want is a list of the accents.
An example of a few are in the image below (but I would need ALL accents):
Thanks!
You can find pdf's containing lists of unicode ranges, grouped by language, here: http://unicode.org/charts/
For Hindi, you probably want Devanagari or Devanagari Extended.
Here is the character class for Devanagari combining marks:
[\u901\u902\u903\u93c\u93e\u93f\u940\u941\u942\u943
\u944\u945\u946\u947\u948\u949\u94a\u94b\u94c\u94d
\u951\u952\u953\u954\u962\u963]
This is only the basic Devanagari block (not Devanagari Extended).
If you want the complete set (for all languages), you can do it problematically.
You start from the Unicode date file at ftp://ftp.unicode.org/Public/6.1.0/ucd/UnicodeData.txt, described by TR-44 (http://unicode.org/reports/tr44/#Property_Definitions)
You can use the Canonical_Combining_Class field (see at http://unicode.org/reports/tr44/#Canonical_Combining_Class_Values) to filter the exact characters you want.
Can't be more precise, because "accent" a bit vague :-)
You might even have to also look at General_Category to get the filter right (and exclude certain marks, or symbols, or punctuation).
And a script doing this would definitely be better than trying to mess with text editors.
One of the characteristics of combining characters is that they combine :-)
So you might get all kind of puzzling results (like this: http://www.siao2.com/2006/02/17/533929.aspx :-)