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.
181
questions
3
votes
1answer
51 views
Profiling simulated interactive editing
Is there a way to profile or time code that simulates interactive editing?
The gist of what I want to do is that I have some code that runs during font-lock, and sometimes it makes editing sluggish. ...
0
votes
0answers
14 views
Highlight headings in orgstruct-mode
When I do M-x orgstruct-mode (in, e.g. shell script mode, after setting orgstruct-heading-prefix-regexp to "#") and make some comments serve as headings, these comments look like all other comments. ...
2
votes
0answers
31 views
Why does setting the 'face property trigger fontification?
I'm trying to write a major mode for a programming language with JSX based syntax. Here's a minimal implementation.
(defun example-forward-parse-jsx (start-pos limit)
"Move point past the JSX ...
0
votes
1answer
38 views
How to change cursor on defocus?
I am running emacs on a Linux machine to my Windows 10 desktop server (running VcXsrv 1.20.1.4). I'd like to get a hollow-square cursor when the emacs window doesn't have keyboard focus, and a filled-...
4
votes
1answer
88 views
Is there a way to disable multi-line string literals in c++-mode?
Suppose I have a short string in C++ and I accidentally delete the double quote that ends it. What Emacs does is highlight the rest of the code as a single very long string, which messes up all the ...
0
votes
1answer
66 views
Replacing a string with symbols using font-lock?
I'm trying to make a font lock hook to replace strings of text for a mathmatical notation plugin.
So I'm thinking " / " (note the spaces) will turn into " ÷ ", but "/" won't. (It's a package mainly ...
0
votes
2answers
68 views
hl-line-mode interferes with custom syntax highlighting [duplicate]
Recently, using fic-mode as reference, I implemented a way for words like TODO, etc. to be highlighted. Here is the code:
(defun todo/pos-in-doc-or-comment-region-p (pos)
(memq (get-char-property ...
0
votes
0answers
25 views
Customize the colour of term in description list
Currently the term and its description doesn't look different at all from each other (I have attached a image). I want the term to have a different colour, preferably red.
I found some resources on ...
1
vote
1answer
68 views
highlight-regexp groups for syntax highlighting
I want to highlight certain words to a color using highlight-regexp. The words I want to highlight are "fn", "let", "mut", etc. for rust development.
The code I have so far is this:
(add-hook '...
1
vote
1answer
38 views
Use `defun` font-locking for other keywords
I'm using the tco.el package, which provides tail-call optimisation for functions in elisp that call themselves in tail-position. The way such functions are identified is by using defun-tco instead of ...
1
vote
1answer
48 views
How to defeat the fontification of colour literals in css-mode?
Emacs css-mode is fontifying my colour literals. For example:
This makes the text harder to read.
I tried to defeat it with the following in my .emacs.
(Note: this matches on ‘hsl’ because those ...
0
votes
3answers
52 views
highlight-regexp: what's the variable in which they are stored?
I need to write a macro, with-temp-highlight-regexps, that evaluates BODY and than restores the previous highlighted regexps (created with the highlight-regexp function). I thought I could do it by ...
1
vote
1answer
77 views
Fontify headline with todo keyword color
I would like to fontify headlines with the same color/weight as their TODO keywords. So for example, the default is like this:
TODO Headline
And I want it to look like this:
TODO Headline
Any ...
0
votes
0answers
33 views
Changing colors of text between two pre-specified markers
I am editing some TeX files, in emacs in which contains lots of text
between @{ and @} markers. Is it possible to modify TeX's highlighting so that text between those brackets get colored in yellow, ...
1
vote
0answers
62 views
Make text Invisible with font-lock-keywords
I'm interested in changing my org-mode buffers to have a better looking logbook. My ideal state to end up in is that text that looks like this:
- State "WAITING" from "WAITING" [2018-11-16 Fri ...
0
votes
2answers
38 views
font-lock limits ignored in anchored matchers
I think I might have found a bug in GNU Emacs but I want to check my understanding first.
In Search Based Fontification it is possible to specify a function as a matcher. It must obey the contract
...
1
vote
1answer
31 views
Font lock mode not picking up keywords
Emacs version 26.1, compiled on CentOS 7.5 , running ada-mode 5.3.1.
The parser works correctly, but the problem is that keywords aren't being coloured. When I run describe font on the keyword, it is ...
3
votes
2answers
30 views
how can I unit test my font-face rules?
I would like to unit test my font-face keyword rules against some source code data sets.
It sounds like it should be quite easy: open the source file, enable the mode, force fontification, dump out ...
3
votes
0answers
32 views
deeply nested loops and conditionals
I am refactoring legacy code. Looks like:
for (int i = 0; i < something.length; i++) {
....
....
lots of code here
....
if (a.good != b.bad) {
....
.... ....
...
1
vote
0answers
38 views
EMACS doesn't grey out comments
When I comment out code with combination of /* and */ in JavaScript nothing happens with text and it stays the same color. (You can see it in second part of code, one that is not grayed out but is ...
1
vote
0answers
37 views
Enable `cc-mode` documentation highlightning per minor mode
I am writing a minor mode for enabling support for JML within Java files.
I realized the syntax highlighting with cc-mode's support for documentation comments.
It works if I set c-doc-comment-style ...
3
votes
0answers
102 views
Apply ANSI color escape sequences for Org Babel results
Feature
There is a nice built-in Emacs feature to colorize strings with ANSI color escape sequences. So evaluating the following Elisp code, will insert the "Test text" at the point with proper ...
0
votes
1answer
40 views
Determine the face(s) that would be applied to a character inserted at point, after font-lock does its thing?
Suppose I am trying to write a major mode. In this mode, certain ordinary characters should have special "electric" behavior when typed, but only in some contexts (e.g. in code but not in strings or ...
0
votes
1answer
44 views
with-temp-buffer removes text properties
Given e.g. (with-temp-buffer (clojure-mode) (insert ":hello") (buffer-string)), I'd expected the result to be propertized, however it isn't.
How to get a propertized string out of a temporary buffer?
0
votes
1answer
236 views
Dynamic syntax highlighting (font-lock-mode) stops working in emacs 25.3
About 15-20 minutes into using emacs my syntax highlighting stops dynamically updating. Instead any new text just uses the color of the text right before it.
Any ideas on how to debug this issue or ...
1
vote
0answers
71 views
Fix org-mode agenda highlighting
I'm having an issue with highlighting in Org agenda:
Can't make the link and tags Gray when the item is marked as Done. I've tried to play with different properties of the font-lock definition, but ...
1
vote
1answer
106 views
Why are code blocks and code literals displaying with large face in markdown
In markdown mode, all of the fenced code blocks and inline code literal strings are displaying with this very large font. The size is large, and also I'm pretty sure it isn't the same font as the ...
3
votes
2answers
77 views
ANSI / xterm font-locking
I have a buffer with terminal escape codes in it and I want them to be colored:
I was able to do this with (ansi-color-apply-on-region (point-min) (point-max)):
However, my file is really big and ...
2
votes
1answer
53 views
Why can't I fontify an indirect buffer?
I like using indirect buffers and narrowing to work on multiple sections of code simultaneously.
I noticed recently that if I disable font-lock-mode in an indirect buffer then I cannot get proper ...
1
vote
0answers
42 views
No font lock in org-mode
When I the first time enter an org-mode buffer, I get no font lock at all unless I revert-buffer or reopen the file. Even I turn on the debug mode, no error is emit.
How should I debug and fix this?
2
votes
1answer
52 views
Preventing syntax highlighting in the wrap-prefix
When Emacs wraps long lines, is there a way to prevent the wrap prefix from having syntax highlighting (font-lock) or any such special properties?
Specifically, I have the following settings:
;; ...
1
vote
1answer
111 views
Replacing autoref command format specification in auctex's font-latex-match-reference-keywords-local
With some help I have redefined the autoref command to take an optional argument, see https://tex.stackexchange.com/questions/428229/autoref-with-optional-argument-text-in-generated-link
Now I am ...
0
votes
1answer
70 views
Search based fontification not working
In trying to learn Emacs Lisp on Emacs 25.3.1, I decided to implement a minimal version of fic-mode. Following is the code:
(defun todo/pos-in-doc-or-comment-region-p (pos)
(memq (get-char-property ...
0
votes
1answer
76 views
Highlight (and increase font) for specific words in the buffer when it's opened
I'm looking for functionality that will allow me to highlight specific words of text when I open the buffer in specific mode, like it should work if you're in
js2-mode
web-mode
vue-mode
and the ...
0
votes
1answer
65 views
Highlight a buffer with custom programming language syntax
I have files which are not .py but they are python code. I want to highlight them as if they were python files. How can I do that.
1
vote
0answers
37 views
Font-locking for text inside org-mode COMMENT blocks
While other sorts of #+BEGIN ... #+END blocks seem to get font-locking applied to them (potentially changing foreground and background colours etc.), #+BEGIN_COMMENT ... #+END_COMMENT blocks do not. ...
2
votes
2answers
768 views
Display another symbol than asterisks in org headings
I would like to change the way headings render while still using the * to type headings (so this question is distinct from Change the asterisk (heading identifier) to some other symbol in Org mode)
I ...
2
votes
2answers
155 views
font-lock for \left and \big in auctex
I am trying to replicate
http://endlessparentheses.com/improving-latex-equations-with-font-lock.html
with no success, I get a "defface for ‘endless/unimportant-latex-face’ fails to specify containing ...
1
vote
1answer
142 views
Fontify source code blocks with Org 9.0
Is there a way to do syntax highlighting in org-mode code blocks without using: (setq org-src-fontify-natively t)?
Since v. 8, I have been unable to fontify the background for org-block with this ...
6
votes
1answer
345 views
How to highlight graphql template literals (gql) in js(x) files?
Inside of a jsx file, I want to use a gql template literal to define GraphQL queries.
Could I in emacs make that section of the jsx file highlight graphql syntax, instead of just showing it as a ...
0
votes
0answers
41 views
Unable to run browse-kill-ring
After installing the browse-kill-ring package under Emacs 24.5.1, I get the following error when running the browse-kill-ring command:
font-lock-set-defaults: Wrong type argument: symbolp, (font-...
0
votes
0answers
95 views
Prettify string, find by regex
I want to replace the regular expression `.*` by bolding .* and not displaying the backticks. So I want `elem` to become elem
I looked into these questions about how to prettify strings rather than ...
1
vote
1answer
47 views
Switching » and « in tex-mode
In tex-mode, the font lock mechanism treats characters between « and » as quoted text. This is fine for French and Norwegian, which use the quotation marks «thus».
But in German and Danish the ...
3
votes
1answer
61 views
How to syntax highlight text which is not already highlighted?
I'd like to highlight function calls in C code, eg:
(font-lock-add-keywords 'c-mode
`((,(concat
"\\([_a-zA-Z][_a-zA-Z0-9]*\\)" ; Object identifier
"\\s *" ; ...
1
vote
0answers
33 views
`htmlize` not taking CIDER font-locking into account
I'm using htmlize to give Org-mode code blocks syntax highlighting when exported as HTML, but the exported code only captures some of the font-locking.
In particular, for Clojure, it does not capture ...
1
vote
0answers
110 views
org-pretty-entities for markdown-mode
org-mode has the variable org-pretty-entities that allows for the display of LaTeX math as unicode characters. How could one get the same result in markdown-mode? It seems like this should be a ...
0
votes
0answers
73 views
How to highlight fragments of source and example blocks within an org-mode buffer itself
This is a variation on the theme of How to <mark> code fragments in org-export.
Here the question is about making portions of src and example blocks stand out (preferably without breaking the ...
2
votes
0answers
119 views
How can I make hl-line mode not override the color of rainbow-mode? [duplicate]
Is there an non-intrusive way to do this?
I've made a fork of rainbow-mode that uses overlay instead of text properties, which solves this :)
https://github.com/amosbird/rainbow-mode
1
vote
1answer
199 views
Font lock of inline code in org-mode?
When using org-mode as a front-end to LaTeX, I'm making heavy use of inline code like @@latex:\textit{something italic}@@. Right now, this is mainly displayed as normal text (with proportional font ...
3
votes
1answer
325 views
How to change the appearance of list bullets in LaTeX/beamer exports?
It's very neat that simple org-mode lists get exported to itemize (or enumerate) environments in LaTeX. Yet I would like also to be able to change the face of an \item bullet using square brackets, as ...
