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.
208
questions
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22 views
Overriding cquery's semantic highlighting of a specific keyword?
Say I've typedef'd static to static_global and I want it to use my keyword color. I'd do something like...
(font-lock-add-keywords 'c-mode
'(("static_global" . 'font-lock-...
0
votes
1answer
36 views
Is it possible for multiple modes to combine their fontifications?
For example, a buffer has some major mode and it does its own fontification.
If I turn on a minor mode A then it adds its own fontification which changes the existing fontification by changing the ...
1
vote
1answer
41 views
Why needs syntax highlighting often a `revert-buffer`?
Quite frequently, syntax highlighting in a given buffer is broken (i.e., a big fraction of the code is not highlighted). This is definitely not due to syntax errors, and the point at which ...
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0answers
43 views
Why is Emacs hanging or seeming like it isin an infinite loop?
In my current Emacs major-mode for Tecplot macro development, I have a few functions defined:
(defconst tecplot-macro-mode-syntax-table
(let ((table (make-syntax-table)))
;; ' is a string ...
0
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0answers
9 views
applying an underlined font-lock-face style to source code
I'm trying to build an interactive query builder for tree-sitter in Emacs with highlight for matches as underlined text instead of overlays.
So far I nailed most of the code to accomplish this, the ...
0
votes
1answer
23 views
How do I build a regexp that enables Emacs to set all words to the left of an equal sign a specific font-lock-*-face?
Following some help provided by Tobias, I am trying to assign a font-lock-keyword-face to all text (:alpha:) to the left of an equal sign (=) in a new Tecplot major mode. I read through the regexp ...
0
votes
1answer
24 views
Highlight syntax of function names and their arguments in custom mode
I'm trying to create a major mode that handles the following syntax:
function someName(value1, value2)
# some contents
end function
I'm using the following to highlight the keywords function,...
0
votes
1answer
30 views
Limit font-lock highliting to first N chars of line
I write regex for font-lock and I know that the date should appear in first 40 chars of line.
How can I limit search beyond some limit?
I tried to add ^.\\{0,40\\}XXX but Emacs regex . is greedy ...
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0answers
24 views
disable syntax highlight on inactive windows
I got the following code for highlighting inactive and active windows with different background color. How do I make so that inactive windows have no syntax highlighting, only the active window has?
...
2
votes
1answer
76 views
AUCTeX: only use monospace for rendering macros?
I've been using the fontify features of AUCTeX, as well as magic-latex-buffer, to display my TeX code in a more readable way.
But I'm wondering if I can crank this up to 11: is there a way to render ...
1
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2answers
25 views
Syntax highlighting in sql-mode on Emacs-24 not working?
I'm trying to get the font-lock stuff in plsql.el (https://www.emacswiki.org//emacs/plsql.el) to work in Emacs 24 (that's the version provided by my Linux distro), but it doesn't highlight ...
0
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1answer
25 views
Automatically highlight elements in an XML buffer
I spend a lot of time in XML buffers using nxml-mode (Emacs 26). Out of hundreds of XML elements, I am only interested in one or two. How can I have Emacs always show the XML elements I'm interested ...
2
votes
1answer
56 views
How can a list of fields be colored with different colors?
Here's a line from an SQL dump with randomized contents:
REPLACE INTO `drxneuleqtx` (`qd`, `mva`, `cuqtgwm`, `vatoj`, `mrfdgnaheui`, `pacc`, `aaqfjhkv`, `epue`, `kvaerg`, `xevtan`, `vmvwwgci`, `...
0
votes
1answer
67 views
Prioritize color of emphasis faces in Org headers
Observe the following Org buffer, tested on Emacs with no configuration (emacs -q):
Note that bold, italic, and underline are all distinctly fontified in the header. However verbatim and code are not....
1
vote
1answer
33 views
Regex search contains font-lock strings
I am searching in a buffer for a regular expression by this snippet:
(setq jb-revision-version "\\([[:digit:]]+\\.?\\)")
(setq jb-revision-string "\\(\\(Revision\\|Id\\): +\\)")
(progn
(save-...
3
votes
1answer
46 views
How to highlight digit groups of 3 in numerals?
I find it very useful to visually distinguish every 3 digit group of numbers in source code so that I can read it. For example something if I see 1000000 it is fairly easy to see that this is 1M ...
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0answers
25 views
Org-mode source blocks are not fontified same as the corresponding language
i am using Zerodark theme and in my org files I noticed that source blocks (emacs-lisp) are not fontified same as when opening an actual lisp file.
I already have this setting:
(setq org-src-...
3
votes
1answer
31 views
How to use font-lock to set other text properties (particularly keymap)?
I'm trying to make a mode where certain strings in the buffer have a special keymap active when the point is inside them. The documentation for font-lock-extra-managed-props and the Elisp info manual ...
0
votes
1answer
32 views
font-lock-keywords weirdness
I am trying to modify pandoc-template-mode.el to deal with $$ which is an escape sequence for literal $ inside the Pandoc template. I have added the "\\$\\$" at the top but I still get bad font ...
2
votes
1answer
51 views
AUCTeX fontification for any command: overkill?
Reading the AUCTeX manual I see that it is possible to add expressions to those one wants to highlight in a .tex file. There are also many specific suggestions around for how to add specific commands ...
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0answers
99 views
Markdown and Latex highlighting (font lock) in R Markdown file
I am using polymode to edit rmarkdown files. Exporting to e.g. pdf is super simple and works very well. R code chunks are also properly highlighted.
But:
I do quite often use latex code inside (r)...
0
votes
1answer
31 views
Can you configure python-mode, elpy-mode to apply font-locking to imported library functions?
This question is likely an expansion / duplicate of this question: how to highlight imported functions in python code?
My .py file looks like this:
from math import floor
(max(1, 8))
(floor(3.7))
...
0
votes
1answer
42 views
font-lock keywords and syntax-table mutually interfering
I would like to define something that font-locks a bit like a new sort of string-literal/comment. I might write:
(font-lock-add-keywords 'emacs-lisp-mode
(list '("<<.*>>" 0 'my-custom-...
1
vote
1answer
148 views
Hi-lock code syntax
I write Hi-lock code at the beginning of tex and org buffers, but it doesn't always behave as I expect it to. What does the number 0 mean in the following? What does it mean when it is 1, instead?
% ...
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0answers
48 views
Retouching syntax highlight of major mode
I am writing a minor mode to complement haskell-mode,
and I am trying to color subwords in camelCased identifiers with slightly different shades of the same color.
Perhaps this can be done by "...
2
votes
2answers
55 views
Why in dired+ mode some text is strikethrough?
Windows 10, Emacs 26.1, Dired+ (download from here https://www.emacswiki.org/emacs/download/dired%2b.el)
Open some directory:
Here result:
Why some text is strikethrough?
0
votes
2answers
43 views
How to write regex to change the go keywords color?
I want to change the color which in package import go defer in go-mode ,need a regex..these code only change the pacakge word color
(defface my-font-lock-gokeyword-face
`((t (:foreground "#...
1
vote
1answer
51 views
How to make font-lock use my face?
I'm interested in making a major mode to display PGN files nicely. I'm trying to create my own faces since the defaults don't seem super-appropriate.
My mode definition looks like this:
(defface ...
1
vote
1answer
65 views
Improving org-block-begin-line, splitting in several faces
The face org-block-begin-line allows to customize the first line of the following block
#+BEGIN_SRC lang :var arg1=1 arg2=2
...
#+END_SRC
However, I would like to customize the faces within the line,...
1
vote
1answer
33 views
Basic quote regex for font-locking?
I have my own font locking that highlights quotes in comments eg.
/* Some comment 'this is quoted'
* more 'text in an escaped \` quote'.
* Plurals such as Moe's or Joe's should work too. */
...
3
votes
1answer
61 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
17 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 ...
4
votes
1answer
158 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 ...
2
votes
1answer
154 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
248 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 ...
1
vote
1answer
137 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
49 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
57 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
63 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
2answers
139 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 ...
1
vote
0answers
82 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
56 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
40 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
49 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
36 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
46 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
42 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 ...
5
votes
0answers
164 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
56 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 ...
