Questions tagged [syntax-highlighting]

Syntax highlighting is the use of colours, size, typeface, or other attributes to visually indicate it has a special meaning and therefore make it easier to understand the text. For example, marking language keywords with a specific colour.

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781 views

How does `\zs` interact with syntax matches?

Consider the text: foobarbaz First we highlight the regular expression /foobar/: :syntax match Special /foobar/ Next we highlight the regular expression /foobarbaz/: :syntax match Error /foobarbaz/ ...
7
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177 views

gVim - Use different fonts using :highlight

I want to set gVim font size for Comment highlight group. When I set it, it does not do anything (the font is still the same but color changes). My .gvimrc: se guifont=Fira\ Mono\ Regular\ 10 hi ...
7
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0answers
108 views

Count only words for which Spell is enabled?

I want to count the words in my buffers, but for TeX files, for instance, a lot of words (e.g., commands) shouldn't be counted. I'm aware that there are scripts that do this specifically for LaTeX, ...
6
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0answers
301 views

.php file makes html text same color as html attributes - how to fix?

The text inside of <p> tags is the same color as the html attributes, so it's hard to distinguish between them. The html inside this .php file is colored (line one of this image) almost ...
5
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0answers
106 views

How can I test and debug my syntax files?

I'm trying to make a syntax file for Raku. The major challenge I'm running into is that I have no automated means to test that my highlighting works as expected. I have to keep another tab open, ...
5
votes
1answer
301 views

Interactive syntax-highligting: highlight the current region only

Often enough a text file is structured as a collection of blocks or cells of some kind. E.g., slides in a Tex Beamer presentation, bibtex items, function definitions, etc. I wonder if vim can ...
5
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0answers
1k views

Syntax highlighting randomly turns off

I use syntastic and split windows heavily in my vim workflow. Lately, syntax highlighting will vanish, seemingly at random, in one of my windows, usually after opening a new split. This happens with ...
4
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0answers
79 views

Is it possible to use syn match dynamically

I know that syn match can work with the regular expression to do some custom highlight settings. I'm thinking if it can work dynamically. For example, I'm doing a c++ project and I want to highlight ...
4
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0answers
60 views

How can I make syntax highlighting files more readable and maintainable?

Vim uses regular expressions for syntax highlighting. Often maintaining these can become rather unwieldy. For example: syn match goVarAssign /\v[_.[:alnum:]]+(,\s*[_.[:alnum:]]+)*\ze(\s*([-^+|^\/%&...
4
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0answers
352 views

Nested syntax folding

Assume I have a syntax as exemplified below and that I want to create a syntax folding definition for the nested begin..end pairs. begin : label a = 0; begin b = 1; end c = 2; begin ...
3
votes
0answers
26 views

`local foo=\'` script syntax highlighting error? (slash tick)

Opening vi on a script file containing local varname=\' or local varname=$' seems to mess up the highlighting colors following the tick. Is there a way to avoid this? Here is a simplified example ...
3
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0answers
84 views

Syntax highlighting shows a yellow bar on Windows 10

Good afternoon, I just started using the Ubuntu shell from Windows 10, and I copied my Mac .vimrc file. Everything seemed normal until these yellow bars started showing up at the end of some lines. ...
3
votes
1answer
219 views

How can I change Javascript syntax to higlight objects?

I am trying to emulate the Atom JavaScript syntax highlighting in vim, but there are a few things missing. Namely, I'd like to highlight objects and their chains in red. It'd be dandy if I could ...
3
votes
0answers
88 views

Can I change the highlight of specific conceals?

I'm using :syn-cchar to replace certain syntactic elements with Unicode characters (à la vim-haskellConcealPlus). Since I'm replacing several different elements, I'd like to be able to highlight some ...
3
votes
0answers
648 views

Prevent fold background color to override gutter

Here's what my colorscheme looks like: But when there are folds, it looks ugly like this: The fold background overrides the "gutter" color, but I would like the gutter to remain gray. Is there any ...
3
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0answers
522 views

Syntax highlighting: what is the difference between :syntax match and :match?

Simple question -- what is the difference between the two? When I try, for example, to highlight characters on every line after the 80th with highlight link OverLength Error (OverLength being an ...
3
votes
0answers
161 views

Order of matches in syn-cluster

For regular match groups, the last defined group will be the first to match. When using match groups added to a cluster, I can't determine what the match order is. For example: syn match allgroupcol3 ...
3
votes
0answers
657 views

How to change the color used to highlight function calls?

I would like to know if it was possible to change the color used to display function name. Let's take the following example (using Python): def function1(arg): function2(arg) # ... ...
3
votes
0answers
857 views

Syntax highlight single - quote parameter

Makefiles can have commands such as: BAR = $(subst ', '\'', $(FOO)) Here the first argument to subst is a single single quote resulting in for example: FOO = some ' single ' quotes BAR = $(subst ', ...
3
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0answers
580 views

Highlight python raw strings as regular expression

I heard someone had set up their editor to highlight python raw strings as regular expressions, e.g. for Django: urls(r'^site1/(\d)*/new$'', ...) Unfortunately my googleing doesn't get me anything. ...
2
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0answers
235 views

How to make VIM json syntax highlight more readable

Using VIM 8.1 in Ubuntu 20.04.02. ~/.vimrc has syntax on. The file /usr/share/vim/vim81/syntax/json.vim exists. While the syntax highlight for YAML file is comparable between VIM and Visual Studio ...
2
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0answers
47 views

How to make certain conceal symbols get highlighted differently than others?

I’ve recently tried to make my python more readable using the conceal functionality. So now I went from this to this . Now what really bugs me here is that ƒ, ¶,the ¥ sign, the ℤ and 𝕊 symbols and ...
2
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0answers
19 views

custom syntax highlight doesn't match in parentheses

In a custom java syntax file (${HOME}/.vim/syntax/java.vim) I wrote syntax match CommonVar /ret/ highlight CommonVar cterm=bold with the intention display the word ret in bold. I tested it with this ...
2
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0answers
43 views

Concealing \begin and \end lines in latex with MathZone

I'm trying to get the lines that have \begin{equation} and \end{equation} to be concealed. I've tried using call matchadd('Conceal','\\begin{equation\*}', 10,13,{'conceal':' '}) and it works, but it ...
2
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0answers
275 views

Is there a way to get improved MySQL syntax highlighting over what vim offers out of the box?

Having spent a bit of time sorting out my colorscheme for my php files, I'd now like to "prettify" my sql. (I blame lockdown). My sql is spread liberally through my php files, but I've noticed the ...
2
votes
0answers
140 views

Can't use special characters in listchars even if setting scriptencoding to utf-8

Here is my .vimrc file: set encoding=utf-8 scriptencoding utf-8 set list set listchars=tab:→· When I open vim, it will show an error message E474: Invalid argument: listchars=tab:→· My vim is Vi ...
2
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0answers
528 views

How to fix this `Omni completion (^O^N^P) Pattern not found` error?

I am trying to set up syntax keyword based omnicompletion in vim. I have defined a few syntax keyword Constants in ~/.config/nvim/syntax/spl.vim They are correctly detected and highlighted. They are ...
2
votes
0answers
119 views

How to set syntax keywords dynamically

I'm trying to highlight the keywords for my c++ project. So what I've done is to create a file here: ~/.vim/after/syntax/cpp.vim and put some custom configuration into it. For example, putting the ...
2
votes
0answers
39 views

head isn't included in syntax/sh.vim

head is a common Unix/Linux executable, but it's not listed in the shell syntax highlighting configuration. In contrast, many common executables are. Specifically, its counterpart, tail, is listed. ...
2
votes
0answers
56 views

Syntax highlighting in consecutive single-line comments

I'd like to have rich syntax highlighting (using, say, markdown syntax) inside (single-line) comments (as is done in Rust). For now, I'm using the following code, which is not satisfactory. syn ...
2
votes
0answers
65 views

Highlight arbitrary rectangular regions

Is it possible to highlight specific and arbitrary rectangles in a buffer? I want to implement a code scope highlight that groups code into a hierarchy of boxes. here is my mockup that I made: ...
2
votes
0answers
88 views

vim cpp syntax contained region

I define four key words and two regions in vim scripts syn keyword KeywordA A nextgroup=rangeA skipwhite skipnl skipempty syn keyword KeywordB B contained containedin=rangeA nextgroup=rangeB ...
2
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0answers
366 views

vim in tmux lose highlighting

I'm using vim 8.0 and tmux 2.5 on ubuntu. And I have set the TERM environment export TERM=screen-256color and run as tmux -2. Normally, nothing goes wrong. It's like the following picture: But ...
2
votes
0answers
42 views

Define region in region with same end match

Let's see an example: block property Property1 key: value end property Property2 key: value end end I would like to let property/end pair highlight only in block/end ...
2
votes
1answer
371 views

ruby syntax highlighting lost on long files

With a "long" ruby file (896 lines in my case) the ruby syntax highlighting is lost when I G to the bottom of the file. Once that happens and I go back to the top with gg, the syntax highlighting ...
2
votes
0answers
52 views

Syntax highlighting depending on whether whole line is commented

Is it possible to have vim highlight folds differently depending on whether every line in a fold is only comments or whitespace? In that case, how?
2
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0answers
54 views

LaTeX tabu package breaks Vim spell and syntax highlighting

The first line of this section of LaTeX code breaks syntax highlighting and spell check whenever I scroll to the area of the document that contains it: \begin{tabu} {*3{X[l$]}} col1 & col2 ...
2
votes
0answers
307 views

syntax highlight function arguments

Trying to create a simple syntax highlighting for a special file type we use. within this file there are simple functions defined which I match using keywords: syn keyword Funcs foo bar baz hi def ...
2
votes
0answers
129 views

Retrieve the syntax id under the cursor, in all cases

How can I retrieve the syntax id under the cursor, in all cases? Indeed, the synID() function doesn't take into account highlightings due to the :match* commands or the matchadd() function. Example, ...
2
votes
0answers
306 views

Custom highlights not working in visual splits

I'm a tabs kind of guy, so I highlight leading and trailing white spaces with the following commands in my .vimrc: highlight whiteSpace_trailing ctermbg=red guibg=red highlight whiteSpace_leading ...
2
votes
0answers
367 views

Changing background color of cursor during selection

Coming from Sublime, I find the following behaviour frustrating. When I select some text, the first (or last depending upon which way you select) character flashes between the text color and your ...
2
votes
0answers
151 views

Search within syntax group?

Is there a way to take advantage of syntax highlighting for searches? For example, can a search be limited to comments or non-comments, if they are correctly marked by syntax highlighting?
2
votes
0answers
173 views

How to match patern inside a syntax region start pattern?

Python group regexp has this syntax (?P<idGroup> ... ), where: (?P<idGroup> is the beginning of a region. ... is the content of the region. ) is the end of region. I highlight start ...
1
vote
0answers
70 views

Using Vim as a syntax highlighting tool - Python and TeX interface

I am trying to modify Vim's syntax highlighting rules for Python to suit specific needs : in particular, I need to capture all the line after some regexps (^Out [.*]: and ^\h\w*Error:). After some ...
1
vote
0answers
21 views

Project local keyword highlighting

I want to enable syntax highlighting for custom types in C files. So, in order to highlight a type name MyCoolType, I add the following line to ~/.vim/after/syntax/c.vim: syn keyword Type MyCoolType ...
1
vote
0answers
35 views

How to know where a syntax was set?

I want to know what line and file syntax region foo start... was set. I have tried this: :verbose syntax foo :syntax foo? :verbose syntax foo?
1
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0answers
25 views

Fixing syntax highlighting in Latex documents using cleveref

I use Vim and Latex together. I have recently been fiddling with the cleveref package and it kind of messed up syntax highlighting. For example, before using this package, when I wanted to ...