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.
225
questions
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2answers
42 views
How to change color of “font-lock-add-keywords”?
I found this piece of code to change org-mode list elements from dashes (-) to circles (•):
(font-lock-add-keywords 'org-mode
'(("^ *\\([-]\\) "
...
1
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0answers
17 views
Is it possible to have different color values for a font-lock face in a string?
My font-lock-warning-face has a red color. Which works well in almost all circumstances, it is very pronounced.
The problem is, my font-lock-string-face has orange color. So warnings inside strings ...
2
votes
1answer
23 views
Derived major mode: new keyword fontification not playing nice with parent mode's
I am writing a major mode derived from f90-mode in order to fontify the syntax of a commonly used Fortran preprocessor, fypp (similar to jinja2 for HTML templating). Here's a contrived example of what ...
0
votes
1answer
32 views
How to customize font-lock-syntactic-face-function?
I've found I can make some comments use a different face by customizing font-lock-syntactic-face-function.
To give some context, I'm setting some comments to use font-lock-doc-face, in situations the ...
0
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0answers
9 views
Using extended glob quantifiers break Zsh mode indenting and highlight
This is a small issue, but annoying to deal with. Suppose I have the following function:
function zicompinit_fast () {
setopt extended_glob local_options
autoload -Uz compinit
local zcompf="...
0
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0answers
24 views
Problem with font in markdown-mode table
I am using variable-pitch for markdown-mode. Tables use fixed-pitch (markdown-table-face). The table aligns for regular text. It breaks alignment for links. The spaces are also underlined.
...
1
vote
1answer
44 views
Altering syntax highlighting for a particular expression
In c-mode, I would like all lines beginning with
exec sql
to have that expression grey and the rest of the line in the default face. How might I achieve that?
0
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0answers
37 views
Static function highlighting/locking in C++
In C++ mode, I am finding that static functions are only highlighted when written in the form static ReturnType function_name(args), and not when written ReturnType static function_name(args).
Image:
...
1
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1answer
31 views
Syntax coloring: Unable to color special syntax
I am writing a mode to color a few common syntax in a symbolic language called FORM. I am a new user of emacs and I took the help of this website to write down the following code. I modified the ...
2
votes
1answer
22 views
Font-lock Yasnippet template from within Org-Babel block
I want to manage my library of snippets from a single org-mode document and tangle these to their respective snippet files, as needed. Now functionally, this works out-of-the box, with the one ...
0
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0answers
14 views
Fontify broken url link in org-mode & HTTP 443 error
It's known that we can fontify broken file link as discussed here, but If I do something similar concerning broken url link...
(defun org--url-face (url)
"Define a dynamic face for url links."
(...
0
votes
1answer
34 views
How to use faces to enhance text
I'm writing some very simple code to get data from a web api, i then parse the response and output the result in a buffer.
By default this text is very flat, how can i add keyword highlighting that ...
0
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0answers
22 views
Editing mode for OpenBSD .conf files
Can GNU Emacs edit OpenBSD configuration files (/etc/*.conf, curly-brace syntax) with auto-indentation and syntax highlighting?
conf-mode does not seem to handle that syntax in Emacs 26.
c-mode ...
2
votes
1answer
21 views
Giving faces compliant names
The description of defface in (info "(elisp) Defining Faces")
says that the name of a face should not end in -face. But
most faces declared in font-lock.el do use the suffix -face.
How does this fit ...
1
vote
1answer
35 views
How to force all fontification to complete?
I have a package which checks the face of a character before operating on it.
A problem with this is, the face might not yet have been calculated because of:jit-lock-context-time, which delays ...
1
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0answers
26 views
Incorrect font locking/syntax hightlighting in c-mode
I've recently started using Emacs, and I'm having a problem with the font-locking in c-mode.
I'm using the Monokai theme, and I'm finding that some tokens are being coloured incorrectly.
The problem ...
1
vote
1answer
35 views
can show-trailing-white-space be forced to ignore blank lines
I'm trying to use the flag show-trailing-white-space and it usually shows me what I want.
I.e., I never want dangling white space at the end of a line containing text. However,
between lines of text,...
1
vote
1answer
12 views
visit new file; enter shell script text; without saving/reloading, fontify the buffer to sh-mode
The title of this question basically says all.
Visit a new buffer, let's say 'foo'.
Enter shell script text in the new buffer, let's say "#!/bin/sh".
How can I now set the mode to sh-mode and ...
0
votes
1answer
41 views
How to highlight a single word in comments, which matches a function call?
While there are packages that handle this, I would like to highlight a single word in source code comments, using for example the warning face, when a function call returns t, using the word as input.
...
0
votes
1answer
51 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
45 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 ...
0
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0answers
49 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
18 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
38 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
54 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
41 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 ...
0
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0answers
51 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
86 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
vote
2answers
40 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
votes
1answer
46 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
57 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
84 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
45 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-...
4
votes
1answer
48 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 ...
0
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0answers
27 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
40 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
37 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
55 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 ...
0
votes
0answers
237 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
50 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
56 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
161 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?
% ...
0
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0answers
50 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
79 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
49 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
134 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
88 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
35 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
65 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. ...
2
votes
0answers
32 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 ...
