Is there some possibility to achieve whole line completion in emacs?
I mean something similar to vim's C-x C-l - like dabbrev-expand but completing whole line.
Yes, look at hippie-exp, which is part of base emacs. Specifically, add try-expand-line to hippie-expand-try-functions-list. Personally, I use a modification similar to this one that completes on closest matching prefix first.
Related
Even the basic things seem to be hidden behind weird shortcut-combinations.
How can I (hopefully without too many c-m-x-c combinations) create a simple new line?
return evaluates the current line
With C-j. That said, if you have paredit enabled, it should do all the newlines you need automatically.
In my case it was M-j.
I'm currently trying out SpaceMacs, not sure if that has anything to do with it.
Even the basic things seem to be hidden behind weird shortcut-combinations.
If you don't want RET to have contextual behaviour, you can M-x customize-option RET ielm-dynamic-return.
How can I ... create a simple new line?
Only a newline? C-qC-j is the normal way to enter a newline in places where RET does something else. (More generally you can use C-q to insert any character that isn't self-inserting for the current buffer.)
If you want newline + indentation (which is what RET does when contextually appropriate), then M-j will do that (noting that if you are in a comment at the time then the new line will also default to a comment).
I'm new to Clojure and new to Emacs.
Is there an Emacs short-cut to intelligently re-indent the whole file?
if not, is there at least a way to indent selected regions left or right?
I feel like I'm back in the stone age repeatedly pressing the arrows
C-x h selects the entire buffer. C-M-\ reindents the selected region.
Ctrl-x, h (select all) followed by Tab (to indent)
cider-format-buffer command (Since cider 0.9.0)
When you capture data from a sequence like C-u C-c C-e
(cider-eval-last-sexp), the raw data output to your buffer can be
unwieldy to inspect/work with. And the normal code-indenting commands
(mentioned in answers here) don't handle it well.
For handling results from such evaluated expressions, try
cider-format-edn-region.
As a concrete example, have you ever tried reformatting your
~/.lein/profiles.clj? This is pretty hard to do and keep
consistent, until you discover cider-format-edn-region. Take
caution that it will, however, remove any comments.
Use cljfmt for many configurable ways to reformat/reindent. It has an Emacs plugin, but also can be run via lein.
How to implement a functionality in emacs to show the difference of contents between two files opened in two buffers?
Kind of like revdiff when using mercurial.
Emacs has ediff, which can diff two files. To use it, just do M-x ediff, and specify the two files you want to diff.
BTW, if you want to see the differences between two blocks of text in the same buffer, you can do it as follows:
- make sure smerge-mode is loaded (e.g. M-x load-library RET smerge-mode RET).
- go to the beginning of the first bloc, C-SPC
- go the beginning of the second bloc, C-SPC
- go to the end of the second bloc, M-x smerge-makeup-conflict RET
- then you can use C-c ^ R or C-c ^ = to view the differences.
Note that this works better if the two blocs are pretty much consecutive.
M-x diff does that.
See the docs for more: http://www.gnu.org/software/emacs/manual/html_node/emacs/Comparing-Files.html
I also found that compare-windows does an amazing job cycling through differences in opened buffers.
I'm new to Clojure and new to Emacs.
Is there an Emacs short-cut to intelligently re-indent the whole file?
if not, is there at least a way to indent selected regions left or right?
I feel like I'm back in the stone age repeatedly pressing the arrows
C-x h selects the entire buffer. C-M-\ reindents the selected region.
Ctrl-x, h (select all) followed by Tab (to indent)
cider-format-buffer command (Since cider 0.9.0)
When you capture data from a sequence like C-u C-c C-e
(cider-eval-last-sexp), the raw data output to your buffer can be
unwieldy to inspect/work with. And the normal code-indenting commands
(mentioned in answers here) don't handle it well.
For handling results from such evaluated expressions, try
cider-format-edn-region.
As a concrete example, have you ever tried reformatting your
~/.lein/profiles.clj? This is pretty hard to do and keep
consistent, until you discover cider-format-edn-region. Take
caution that it will, however, remove any comments.
Use cljfmt for many configurable ways to reformat/reindent. It has an Emacs plugin, but also can be run via lein.
When coding in elisp, I find that I'm stopping at hyphens when moving by words, and would prefer to ignore them.
What's the simplest way to do this?
M-x modify-syntax-entry RET - RET w RET should do it. Or if you prefer an elisp snippet that you can add into a hook, (modify-syntax-entry ?- "w")
The syntax table for a mode contains information on what constitutes various syntactic classes (e.g. words, spaces etc.). These are used to determine the operation of commands such as forward-word etc. Modifying it change the behaviour of these commands.
Instead of changing Emacs' notion of words, it might be preferably to navigate by s-expressions (C-M-f, C-M-b) to skip whole identifiers. That way, you keep the convenience to be able to navigate by the partial words if you want to change an identifier.
You can use interactive regex search. Pressing just C-M-s SPACE should search for any whitespace (you might need to configure search-whitespace-regexp).