Questions tagged [comment]
is for distinguishing comment lines from code. Emacs uses the same key bindings for manipulating comments in different modes. Emacs handles all the different ways of inserting comments for each of the major modes. Use additional tags to indicate language-specific modes for questions about comments.
79
questions
2
votes
1answer
23 views
Are comment style flags insufficient to separate SQL comments?
I am trying to understand why SQL mode accepts -* as a comment block start.
In sql.el, I read:
(defvar sql-mode-syntax-table
(let ((table (make-syntax-table)))
;; C-style comments /**/ ...
...
1
vote
0answers
22 views
Why does sql-mode think -* starts a block comment?
While typing in a SQL mode buffer, I noticed that -* starts a block comment. Why?
It happens whenever I type an asterisk/star character (ASCII 42) directly after a simple dash/hyphen/minus character (...
3
votes
1answer
168 views
Can I make “comment-region” comment empty lines?
In LaTeX code I can have:
Lorem ipsum dolor sit amet, consectetur
\begin{comment}
adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis ...
5
votes
2answers
91 views
Is there an emacs command to go to end of code line (before line comment and whitespaces start)
say you have that:
stuff
indented stuff # commented stuff
We already got move-beginning-of-line and back-to-indentation for the left side. Now, for the right side...
I'd love to know if you ...
1
vote
1answer
59 views
How to prettify symbols inside comments?
I'm using prettify-symbol mode together with Pragmata Pro.el.
Ligatures work perfectly fine in the source code but for some reason with comments they don't. I think I'm missing something since it's ...
1
vote
1answer
59 views
Emacs custom major mode with multiple comment types
I'm trying to write my first (very simple) major mode for Emacs. My goal is to have multiple comment types, but I can't find a way to implement this. Basically, I want my major mode to make ...
0
votes
0answers
23 views
unexpected long indent after colon in web-mode
I have some trouble locating the source of 8 tabs and 3 spaces more than the previous indentation when I'm inside js inside web-mode. These appear after a line that ends with a colon. Example (note ...
6
votes
1answer
89 views
How to prevent emacs from fontifying empty part of the line?
As an example, if I start a one line comment:
;; Comment⏎
Emacs will fontify the the whole line, from the beginning of line, occupying the entire width of the window, as comment. This can be made ...
2
votes
0answers
68 views
Strange comment indentation results
I am working with a simple major mode. The format has one single line comment delimiter, i.e., %. However, I get strange results when running fill-paragraph on a comment. Specifically, the result I ...
1
vote
0answers
37 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 ...
0
votes
0answers
29 views
fill style for block comments (lean-mode)
lean-mode (available on MELPA) defines two kinds of comments:
-- like this
and
/- like this -/
I've noticed that when filling long lines, the behavior is sometimes not optimal. E.g.,
/- xxx ...
0
votes
1answer
56 views
align doesn't indent multiple lines of C code correctly
This is my simple C code block:
int main() { // the enty function
in x = 100; // my new variable
for(int i=1; i<2012; ++i) { // loop a lot
x -= i;
}
} /* ...
3
votes
2answers
221 views
How to align both of comments and macro of multiple lines with space instead tabs for C/C++ code?
This is my configuration in init.el for C/C++ code which is default value in linux kernel:
(setq indent-tabs-mode t)
I'm using this style and won't change it to nil.
And indentation and alignment ...
1
vote
0answers
34 views
Move point to just before end of a comment
Given that the point is right in front of a comment, how do I move it to the end of the comment, but before the comment end markers?
For example:
for a C++ // xxx comment, I would like to move the ...
0
votes
1answer
82 views
Why does emacs put a black background on comments?
For some reason emacs shows comments on a black background. The image shows an example from my emacs with the otherwise amazing color theme "aalto-dark" from the color-theme-modern package. I don't ...
0
votes
1answer
61 views
Elisp-Function to always insert “*/” in C-Mode when “/*” was typed
I want to implement the functionality, that i wrote about in the title. Since searching the web for existing solutions didn't give me anything useful, i figured i would just try and implement it ...
1
vote
1answer
169 views
How to fold / collapse the first comment block on file load?
Is there a way to fold the first comment of a file on load?
While I don't like code folding in general, it can be handy in this one instance when every file has a boiler plate header which isn't ...
6
votes
2answers
248 views
C++ mode: smartly use /*…*/ for comment-dwim
I want to adjust the behavior of comment-dwim when editing c++ files:
When a region is selected that either starts or ends in the middle of a line I would prefer /* ... */ comments. For the other ...
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. ...
1
vote
0answers
157 views
How to add additional comment syntax to a mode?
In general, given a major mode with a defined comment syntax, what do I have to define or change to add a new comment syntax? By "adding", I mean setting some new characters so that they
work with ...
1
vote
1answer
68 views
Elisp: Inserting Comments
I'm trying to write an elisp program that will insert a section header and footer as a comment. For example, if I need a section called "intro" for my LaTeX document, the following would be inserted:
...
4
votes
6answers
190 views
Search for “foo bar” ignoring comments and newlines
How do I search for "foo bar" ignoring comments and newlines in emacs? For example, given the tex file fragment
blah blah foo % comment 1
% comment 2
bar blah blah
I'd like to be able to type "foo ...
3
votes
2answers
203 views
White space being inserted before a semicolon in asm-mode
When I try to insert a semicolon in my code (in asm-mode) it seems to indent a certain number of tabs like this (usually 4 it seems):
D ;
And if I put another semicolon on the next ...
2
votes
2answers
120 views
indentation (with multiline comments) in batch processing
i'm trying to indent a couple of C++-files (and untabify them; and remove trailing whitespace), so i thought about using emacs in batch mode.
Since I'm pretty much a noob when it comes to elpa (or ...
2
votes
1answer
51 views
command to mark a block comment as region
Is there an existing EMACS command to select a block comment? That is, I have
/**
* A Comment
*/
I want to set the mark ahead of the /** and set the point after */.
I realize there are several ...
1
vote
2answers
117 views
Hide only comments
In hs-mode, is there a way to only hide the comments (C-style, delimited by /* ...*/), and no other blocks of code?
(there was nothing obvious in M-x customize-group hideshow)
1
vote
0answers
41 views
org-fill-paragraph leaves a comma at end of C style comment
In a src block when there is a C style comment /* ... */ doing an org-fill-paragraph would always put a comma just before the last star, like this:
/*
Some comment
,*/
Is there a way to stop it from ...
1
vote
1answer
288 views
Indenting within block comments in C-mode Emacs
After writing functions in C/C++, I like to format my block comments that explain a function's purpose, parameters, use, and so on.
(See example below)
However, to indent my comments in emacs, I ...
3
votes
1answer
107 views
disable strange comment behavior in AUCTeX
When I have a commented line in my TeX file, eg
some text that is not commented
|%% here is a comment
followed by more uncommented text
(the | represents point), and I hit RET, point is moved past ...
0
votes
0answers
105 views
How to change the command for comment toggling
spacemacs with Evil uses gcc to toggle whether a line is commented or not.
I'd like to change it to ,cc. How should I go about this in my .spacemacs file?
1
vote
0answers
74 views
Doxygen style for c-doc-comment-style? [duplicate]
The option c-doc-comment-style supports javadoc, autodoc and gtkdoc.
Is there a way to get doxygen support? (\returns, \note, \brief... etc)
2
votes
0answers
93 views
How to modify behavior of syntax highlighting without editing the original source?
There is a bug in C/C++ comment highlighting (bug 11865)
Where the fix appears to be to modify the value of c-font-lock-doc-comments
Is there a way to do this in my emacs config, instead of having ...
0
votes
0answers
188 views
How to toggle C/C++ multi-line comments using preprocessor `#if 0` … `#endif`?
Is it possible to configure C/C++ multi-line comments to comment/uncomment selected text using the preprocessor?
eg:
Before:
// a comment
Some(code); /* some comment */
After:
#if 0
//...
1
vote
0answers
78 views
Keyword as comment ender (and starter)
In my previous question I asked about complex comment-start sequence and I think I figured it out, but now I have another problem. Let say we have this mode:
(defconst test-font-lock-keywords
'(("\\...
1
vote
1answer
71 views
Complex comment-start (and end) sequence
As far as I understand there is syntax flags only for comment delimiters made up of two characters but if I have comment delimiters of length greater than two characters is it possible to change ...
3
votes
1answer
165 views
How do I teach Emacs to re-wrap /* */ comments?
Is there an existing function, and if not how would I write one, that turns this:
/* asdasdasd asdasdasd asdasdasd */
/* asdasdasd asdasdasd asdasdasd asdasdasd asdasdasd */
/* asdasdasd asdasdasd ...
0
votes
1answer
26 views
Shift text after cursor to specified column
If I have a line like:
vec3 pos; // May not be defined.
And I want to shift the comment to a specific column number, say 27, such that I get:
vec3 pos; // May not be defined.
Is ...
1
vote
0answers
56 views
auto-fill-mode fails in comment with empty second line
Consider the following comments:
;; This is the first line of a comment.
;;
;; This is the second line, which begins a paragraph. If I have
;;auto-fill-mode enabled, I lose the leading space!
;; ...
6
votes
3answers
464 views
Syntax highlighting for comments starting with specific sequence of characters
In clojure, the comment character is ;. clojure-mode syntax highlighting + color scheme greys comment text out.
I want emacs to color lines that begin with ;-; with a different color.
For example:
...
2
votes
0answers
87 views
How to set web-mode to use single-line comment style instead of multi-line for JavaScript
When commenting C-style code like C++, JavaScript etc., I use single-line comments to be able to uncomment a previously commented region selectively, i.e
// This
// is
// a single-line style
// ...
2
votes
0answers
60 views
How to protect LaTeX comment lines from indentation?
When I type <TAB> in a LaTeX file anywhere on a comment line, the comment symbol is moved to the beginning of the previous non-blank line. This also occurs with M-x indent-region.
Is there a ...
4
votes
1answer
56 views
How to treat region between conflict markers as comment?
While resolving complex conflicts manually, I usually want emacs to treat conflict markers and region between them as comment, since it breaks major-mode's syntactic analysis (fontification, electric-...
2
votes
2answers
172 views
Is there a way to comment within a line in elisp?
Is it possible to comment the string "emacs" below while keeping this code one line? If so, how?
(message "hi") "emacs" (message "hi!")
1
vote
1answer
39 views
How to auto prefix with comment char when inserting code ref label with org-store-link
There is a way to link to a specific link of code in org babel src block. with org-store-link.
Here is an example:
;;; This is comment | line. |
(describe-char | (point)) ; | comment |
(message | ...
3
votes
2answers
698 views
How to get emacs to automatically insert block comment prefixes?
I would like to type source code comments of the form:
{- ...
4
votes
1answer
156 views
add a space after the comment delimiter
When I'm writing a comment and press M-j to continue the comment on the next line (using single-line comments), if I press it multiple times say because I want to leave the next comment line "empty" ...
1
vote
3answers
91 views
If I am in a comment (including empty lines), how do I get to the beginning of the comment?
I have the following problem:
I am in a comment or the empty lines after or within the comment. I want to get to the first line of the comment.
So no matter where I am in this commented block, I ...
15
votes
1answer
969 views
Emacs Lisp comment conventions
The Emacs Lisp Reference Manual's Appendix D.7 mentions some comment tips:
Single semicolons (;) should be used for inline comments.
Double semicolons (;;) should be used for line comments.
Triple ...
3
votes
1answer
408 views
how to define color for part of a comment?
How to make colored some part of comment? Let comment be ;; This is James Bond diary. And I want to make "James Bond" in green.
There will be only a few such strings and no places where it will be ...
