Questions tagged [font-lock]
Font Lock mode is a minor mode, always local to a particular buffer, which assigns faces to the text in the buffer.
310
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How to use tree-sitter parser for syntax highlighting?
I'm trying to setup Emacs for editing Roc (https://www.roc-lang.org/) source code. I have an LSP server for Roc and tree-sitter parser for Roc installed.
Unfortunately I failed to find tree-sitter ...
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votes
1
answer
68
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How to set font for specified character?
I don't prefer JuliaMono font, but it provides a view of one character that I want to see in my code. It is "|" that looks like a solid vertical line in some OCaml common code situation.
I ...
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57
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Use different font for math fragments in org mode
How do I use the fixed-pitch font for math fragments in org-mode buffers? I.e., I want to use a monospace font for all strings of the form \(...\) or \[...\], where ... may include newline characters ...
4
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1
answer
59
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Meaning of nils in font-lock-defaults
I want to understand the fields in font-lock-defaults. The documentation reads
Defaults for Font Lock mode specified by the major mode.
Defaults should be of the form:
(KEYWORDS [KEYWORDS-ONLY [CASE-...
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1
answer
30
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Use rx to highlight a specific group in a match [duplicate]
I am trying to write a major mode for a language, and I am working on the syntax highlighter. I am using rx with some success, however I need to highlight the following pattern:
`somemacro(args...)`
...
- 135
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34
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Is there a way to hide link prefixes in org-mode?
For some link types it would be nice to hide the link prefix automatically. This post does this with text properties, but I'd prefer if it was possible to do with something like prettify-symbols or ...
- 121
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1
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18
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how to use different faces for regular expressions in the same line in font-lock-defaults
I'm trying to create a major-mode for HTTP requests in emacs, I'm stuck at the syntax coloring for regexs at the same line.
let this be the HTTP request I'm trying to highlight:
GET /...
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2
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2
answers
321
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How to highlight documentation comments with tree-sitter?
In c-mode it's possible to show doxygen comments /** ... */ using font-lock-doc-face. See: docs for c-doc-comment-style.
How can this be done in c-ts-mode ?
I can find documentation pointing to ...
- 8,556
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44
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How can I fontify a new keyword with special character in Emacs, e.g. like `-let` or `-if` or `*if`?
I already tried but was not successful. Here is the regex:
(font-lock-add-keywords 'lisp-mode
'(("\\<\\(FIXME\\):" 1 font-lock-warning-face prepend)
...
- 6,772
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17
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Whitespace in syntax table for comment delimiters in conflict with indentation and font lock
The special file format of my software uses angle brackets as a delimiter and # / # as comment markers (note the whitespace after the first # and before the last #). I try to make a major mode to ...
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42
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Remapping a face in font lock mode
Given this headline:
** Title
Title Title Title
The headline has the face "org-level-2" applied. This face has been applied by means of a regexp, using font-lock.
Let's assume that "...
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2
votes
1
answer
59
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Text Property of `initial-scratch-message' Not Taking Effect
;;; ~/.emacs.d/init.el
(custom-set-variables
'(inhibit-startup-screen t)
'(initial-scratch-message #("++"
0 2 (face underline))))
I expect to see an ...
- 4,638
1
vote
2
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153
views
How do I change Org's HTML code background?
Modifying Minted
background
is easy if my output from Org is LaTeX.
\definecolor{LightGray}{gray}{0.9}
\begin{minted}
[
frame=lines,
framesep=2mm,
baselinestretch=1.2,
bgcolor=LightGray,
fontsize=\...
- 339
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Highlighting strings in Org and Markdown mode doesn't work with *bold* or /italic/
I want to highlight strings between double quotation marks in org-mode and markdown-mode, just so they're easier to see, as in LaTeX-mode. I have the following in my .emacs:
;; Highlight strings ...
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2
answers
53
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How do I export code font-lock from Org to HTML?
With the following .emacs
(on bleeding-edge GNU Emacs 30.0.50 and Org mode 9.6.1 in 2023)
;; Org -> LaTeX
(require 'ox-latex)
(add-to-list 'org-latex-packages-alist '("" "minted"...
- 339
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votes
1
answer
33
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No syntax-highlight in c-mode *immediately* after enabling
I'm writing tests for color-identifiers-mode I co-maintain, and I stumbled upon a problem that after creating a buffer and enabling c-mode in it, there is no highlight over keywords.
For example, if ...
- 554
2
votes
1
answer
46
views
Why dividing long line (with lambda/interactive) in the (general.el) breaks off the Syntax coloring?
This is part of my general el config.
As shown in the image, when I divide long line (that has lamda, interative) into multiple lines :which-key ...... changes color.`
Why is this happening?
Am I ...
- 589
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59
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Does Emacs support syntax highlighting for self-defined text categories?
In other words, are the text-part-categories which can be highlighted limited in amount and hard-wired into Emacs (keywords, functions, strings, digits, numbers, etc.) or is it possible to define any ...
- 420
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39
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Font Face rendering of boxes around text produces ugly result if text is not placed in separated lines
Following behavior observed while running Linux Mint 21 Cinnamon with Emacs 28.2.1 installed from source and with via emacs GUI made following changes to ~/.emacs:
'(default ((t (:family "DejaVu ...
- 420
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38
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How to stop screen from changing how emacs handles colors
In .screenrc, I have this line: term xterm-256color If I do not use that, or if I try something different (like xterm-color or screen-256color), then emacs has absolutely no color.
Here is a font-lock ...
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28
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How do I realign fontified marker after adjusting window size?
I have the following function
(defun org-fontify-proof-blocks ()
(add-to-list 'font-lock-extra-managed-props 'display)
(let ((margin-format (format "%%%ds"
...
0
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1
answer
92
views
How to visually indent continuation lines of Org property values to align with the column specified in org-property-format?
Long property values in Org mode property drawers are by default not visually indented in visual-line-mode so as to align with the start column of the property values (as defined in org-property-...
- 1,052
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17
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Font-locking issues with org-special-blocks
I'd like to fix some minor annoyances with emphasis marker font locking in org-special-blocks. The issues are the following:
When including an #+attr_latex: line above the #+begin_<environment> ...
0
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0
answers
32
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How to disable font-lock for org-special block lines?
I like using org-special blocks. I have an issue due to how I've set up my org-emphasis-regexp-components (done this way because I wanted the possibility of multi-line emphasis and emphasis w/in words)...
0
votes
1
answer
60
views
How can I add custom keywords into Builtin Exceptions in python-mode to color them?
In python-mode, Exception keyword has font-lock-type-face for coloring.
Example output of the coloring:
If possible, I want to add custom keywords into Builtin Exceptions such as QuietExit, Terminate ...
- 1,300
2
votes
1
answer
55
views
Lisp Mode Documentation Syntax color change?
I use emacs for common lisp development. I noticed that the documentation string for functions is white and makes it hard for me to read.
Is there a way for me to change the color of this string?
...
- 283
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22
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Consistent color for bindings in scheme-mode
Take a look at the following example:
(define a
(lambda (x)
(define b 1)
(let ((y 2))
#f)))
Emacs 28.2 renders the above code in this way:
This is inconsistent. define introduces ...
- 1,338
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votes
1
answer
28
views
Highlight code between specified tags
how can I write extension for existing major mode, e.g. dart-mode to highlight block of codes. For example:
// $done>
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'dart:ui';
...
- 13
1
vote
1
answer
382
views
Change org mode's heading font size (like logseq) in respect of properties
I want my org file can be used in Emacs and logseq interchangeably (in pc Emacs, in mobile logseq)
What I want is like logseq to have other properties for the heading text, like
:PROPERTIES:
:heading: ...
- 13
2
votes
2
answers
139
views
Disable Fontification in Org-Mode while Keeping Color Highlighting
I would like to ask a question about org-mode and font-lock-mode.
I just started using Emacs and, since I am not a programmer, I use it
mostly for writing and handling texts. And, I am quite ...
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-1
votes
1
answer
52
views
new org-mode buffer with font-lock off
I am making a new buffer, then disabling font-lock. I use headings, I have noticed that they do not get coloured. Is this how things work ?
Do buffers in modes with font-lock enabled always require ...
- 1
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80
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font-lock-mode and printing in colour
After making a new buffer, font-lock-mode could either be enabled on disabled. For instance, if I use (text-mode) or (org-mode) will automatically enable font-lock-mode. However, for (fundamental-...
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2
votes
1
answer
67
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Inserting coloured text in a buffer
I want to insert with colour properties. But when I try inserting in a new buffer, the colours get removed.
(defun ticker-second (lampkl)
"TODO."
(interactive)
(cond
((eq 'green ...
- 1
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0
answers
32
views
Keeping specific comments with bold weight
I am using a bold typeface, but for comments I am using normal weight. But I would like that some specific comments to remain displayed with bold weight. The specific comments are those that start ...
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1
vote
1
answer
77
views
show binary value in different colors
Is there a simple way to show in emacs within an self-made-mode which use emacs font-lock-mode a binary value like "0b10010010" in different colors like the zero in lite gray and the one in ...
- 113
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1
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48
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How can I change color of dollar sign different than font-latex-math-face in auctex?
In AUCTex, my font-latex-math-face has green color that also colors $ $ or \( \) into green as well. Here I just want to have different color for dollar sign than font-latex-math-face's
Is it ...
- 1,300
1
vote
3
answers
124
views
How can I avoid switching into font-latex-math-face in tikzpicture environment?
When I have text inside \begin{equation} ... \end{equation}, font-latex-math-face face is applied.
If I have atikzpicture block inside equation, font-latex-math-face face is applied to it as well:
\...
- 1,300
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vote
1
answer
187
views
Control font and color in spans of org-mode text?
I want to change the font and color of chunks of text in org mode, the way I can in OmniOutliner. Is it possible? Using the markdown or some other method.
Screenshot of my emacs, in org-mode:
In the ...
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1
answer
116
views
Highlight org headline text only if org-level is less than 3 and has-children
This is a follow up to this question, which already has an accepted answer here.
I have
(setq org-level-color-stars-only t)
to highlight only the stars in org-mode headings.
Following this answer I ...
- 298
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1
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85
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Highlight org-level-color-stars-only from org-level-2 onwards
Following this answer I have
(setq org-level-color-stars-only t)
to highlight only the stars in org-mode headings.
However I want to further customize the heading coloring. In particular, I want to:
...
- 298
1
vote
1
answer
57
views
How to describe all faces at point?
When I do M-x describe-face, the default face is, according to the doc,
"the faces of the character after point"
However, looking at the *Fancy Diary Entries* buffer, I see many
different ...
- 5,958
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votes
0
answers
36
views
How can I load font-lock-add-keywords on restart?
I use desktop session. Every time I restart my TODOS won't
appear unless I kill the buffer and open it again.
;; SESSION
(setq desktop-save-mode t
desktop-save t
desktop-save-buffer t
...
- 151
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votes
1
answer
27
views
comments are not highlighted with numbers in derived mode of prog-mode
It seems if the major mode is derived from prog-mode, a comment line will not be highlighted as a comment if it contains any numbers surrounded by blank spaces.
The content of tt-mode.el
(setq tt--...
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1
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0
answers
47
views
Highlight variables/functions in commens of all prog-modes
In lisp-mode, strings inside comments that are encapsulated by `' are highlighted with font-lock-constant-face.
How can I make all prog-mode-derived modes do that by default?
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3
votes
1
answer
167
views
Regular expression too big
Working to create my own major mode for sqf language (arma3 scripting) I get this error:
Error during redisplay: (jit-lock-function 1) signaled (invalid-regexp "Regular expression too big")
...
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votes
1
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104
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Python-mode font-lock: change the color of the equals sign in function keyword assignments
In Python, keyword arguments passed to functions can take the form of "keyword"="value", such as in this example:
some_function(somearg="foo", someotherarg=True)
I'm ...
- 163
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1
answer
202
views
Is it possible to use LSP for font-lock or indentation?
I'm writing C++ and running into problems with font-lock-mode often getting confused by more obscure language features (e.g., operator""_ud). I also find that indentation doesn't work very ...
- 103
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votes
1
answer
168
views
How to properly use a regex for font locking
I'm stuck with a specific problem, I'm writing a major-mode for a language that supports multiple assignment, meaning that:
let s = 9
let x, y, z = 1, 2, 3
var k = 11
var a, c = 4, 5
Are all valid ...
- 279
1
vote
1
answer
98
views
adding highlight to parts of a regexp
I am pretty new to emacs so please excuse the rookie question.
So I am editing a helm chart template, and have enabled yaml-mode since most of helm uses yaml.
but I wanted to add some highlighting to ...
- 125
0
votes
2
answers
34
views
Customisation for comment delimiter colour based on light or dark theme
I would like to adapt the emacs customisation for comment delimiter colour to change according to light or dark background. How is this customarily done?
(defun annot ()
"Customisation for ...
- 1