I'm pretty new in markdown, and I wonder if it's possible to highlight a specific line of a block of source code, like explained in this page
http://en.support.wordpress.com/code/posting-source-code/
Thanks in advance for your answers,
Edit :
To be clearer, with the wordpress plugin, you can write something like this :
[code highlight="2,3"]
This line won't be highlighted.
This line will be highlighted.
This line will be highlighted.
This line won't be highlighted.
[/code]
But obviously, this isn't a markdown syntax.
It can be done, but there is no Markdown syntax for it, at least not on the most common flavors. Fortunately, also on the most common flavors you can embed HTML.
My solution:
Example
function main() {
__config_bash
__config_xdg_dirs
}
Code
<pre><code>
function main() {
__config_bash
<strong>__config_xdg_dirs</strong>
}
</code></pre>
On SO, langauge highlighting is possible as explained in Advanced Help but not formatting within code blocks.
This is a code block
Markdown is **not** processed
You might mimic what you want by using quote:
This line won't be highlighted.
This line will be highlighted.
This line will be highlighted.
This line won't be highlighted.
You might also mimic what you want by using two spaces at end of each line:
This line won't be highlighted.
This line will be highlighted.
This line won't be highlighted.
But of course, these are not then rendered in monospaced font nor do you get syntax highlighting.
Related
I'm seeking a command that when I highlight a paragraph of text in Visual Studio Code will let me remove all line breaks, and correspondingly a command that if I highlight a paragraph without line breaks will insert them at the end of the display width.
It wont be enough to just use Alt-Z because that just makes the display show the line wrapping but doesn't actually insert the line breaks.
For context: I'm using a VS Code latex plugin which is a compiled text editor format. Errors in this system trace back to line numbers so if you don't have line breaks you have to hunt down the error somewhere in a large paragraph. But of course this being a text document there you often have to edit paragraphs and end-of-lines become jagged and hard to read/update.
You can set this behavior searching for "Word Wrap" in the settings. Set to "on" to wrap the words.
Found a solution, maybe it will help someone in the future.: install "rewrap" extension. Select portion of text, and use Alt-q. Seems to work like Emacs' M-q command. (Thx Grant)
When creating a bug report on GitHub, is there any way one can easily mark a block of code as a code? I.e. it would indent the marked block by four spaces. Ideally something similar to {} icon on StackExchange. Is there something like that? Indenting every single row can of copy-pasted code can be pretty annoying.
Three back ticks ``` on the line above and below the code create a "fenced code block" in GitHub.
You can also do syntax highlighting, ex ```ruby
Documentation here:
https://help.github.com/articles/github-flavored-markdown#fenced-code-blocks
Note the attached screenshot from my Emacs 24. It is in Fundamental mode, no visual line mode is turned on, and I don't think I've turned on any word wrap mode either:
You can clearly see that the lines at the bottom are closer together than the lines at the top, but I have no idea why.. it's all just text? Why is emacs doing that?
This is the mode I am in:
Update: It just occured to me that perhaps this issue is that I am copying/pasting this text into emacs as I take notes from a PDF I am reading. Perhaps emacs is somehow getting formatting based from this copy/paste? I thought this was a text-only file with no formatting, but perhaps that is not true?
The issue is due to unusual quote symbols, both apostrophes and quotation marks, that are affecting the line heights. Removing these and using "normal" quote marks resolves the issue.
I'm quite new to cc-mode and I'd like to configure it to allow me to freely format and use tabs in multiline comments. This is important to me because I want to use cog.py in my source file and need to be able to format the python source in the comment correctly. I'd be ok with comments not beeing autoindented at all, however I'd like to keep auto indenting the rest of the source code.
Example:
...
/*
[[[cog
import cog
for x in ['a','b','c']:
>cog.outl(x)
]]]
*/
...
In the line marked with > I'd like to press TAB to indent the line. cc-mode simply does nothing at all if i do so. I could use spaces there (which is inconvenient) but every (semi-)automatic re-indentation of this block would cause the spaces to vanish and therefore the python code to be incorrectly indented (which is what happens if i happen to press tab somewhere on this line after indenting it with spaces).
I tried to start emacs without my .init to be sure this is default behavior and not modified by my configuration so far. I've done google searches and read the documentation of the cc-mode variables / functions I stumbled upon (cc-mode online docs) while searching for a solution (i.e. c-indent-comments-syntactically-p, c-indent-command, c-tab-always-indent,...) but none of these seemed to solve my question.
EDIT1:
Thanks to abo-abo's idea of a "multi-major-mode" setup i've stumbled upon mmm-mode and have set up automatic switching to python mode for a cog section, which fixes most of my problems.
The only remaining problem is reindenting the whole file or a region containing a cog section. Can I somehow tell cc-mode to not change anything in comments while reindenting the file? mmm-mode + that would be a perfect solution for me.
You can use M-i to force a tab indent on the lines that you want, so you can use it to indent your comments.
You can also change your comments to use // instead. Just select your python code snippet, and do M-x comment-region:
// def foo(x):
// print 'hi'
Then the autoindent won't mess up your indentation.
I've been trying to make use of a cool feature of YASnippet: write snippets containing embedded Emacs Lisp code. There is a snippet for rst-mode that surrounds the entered text with "=" that is as long as the text such as in
====
Text
====
Based on this snippet, I decided to slightly modify it (with Elisp) so that it comments out these three lines depending on the major mode you are in (I thought that such a snippet would be useful to organize the source code). So I wrote this:
${1:`(insert comment-start)`} ${2:$(make-string (string-width text) ?\-)}
$1 ${2:Text}
$1 ${2:$(make-string (string-width text) ?\-)}
$0
This code works relatively well except for one problem: the indentation of these three lines gets mixed up, depending on the major mode I'm in (e.g., in emacs-lisp-mode, the second and the third lines move more to the right than the first line).
I think the source of the problem might have something to do with what comes after the string ${1: on the first line. If I add a character, I have no problem (i.e., all three lines are correctly aligned at the end of the snippet expansion). If I add a single space after this string, the misalignment problem still continues though.
So my question is: do you know of any way of rewriting this snippet so that this misalignment does not arise? Do you know what's the source of this behaviour?
Cheers,
From Writing snippets:
yas/indent-line
The variable yas/indent-line controls the indenting. It is bound to 'auto by default, which causes your snippet to be indented according to the mode of the buffer it was inserted in.
Another variable yas/also-auto-indent-first-line, when non-nil does exactly that :-).
To use the hard-coded indentation in your snippet template, set this variable to fixed.
To control indentation on a per-snippet basis, see also the directive # expand-env: in Writing Snippets.
For backward compatibility with earlier versions of YASnippet, you can also place a $> in your snippet, an (indent-according-to-mode) will be executed there to indent the line. This only takes effect when yas/indent-line is set to something other than 'auto.
for (${int i = 0}; ${i < 10}; ${++i})
{$>
$0$>
}$>