By default, Emacs packages such as undo-tree-mode seem to be dependent
on windows to display the visualization.
The first basic step would be to
`(setq pop-up-frames t)`
so that display-buffer always makes a new frame.
Use the option package-archive-priorities which was made for this
very purpose. To prefer MELPA Stable over MELPA.
The higher the number, the higher the priority of a package archive.
For any package that exists in multiple archives Emacs' package manager
picks the package from the archive with the highest priority,
and ignores packages in other archives, even if the version number
is higher.
If the package exists in two archives of the same priority,
the higher version number wins, and ultimately
I think the order in package-archives.
- off-p
- shrink-path-dirs
- neo-buffer--insert-root-entry
Fix functions are not known to be defined
- shrink-root-entry
- projectile-project-root
FS #2
Working in PHP languages with HTML is a daily task.
In the first instance I tried to combine its syntax with multi-web-mode but it consumed a lot of resources.
In the second instance I made the language reader using mmm-mode, reading php-mode in web mode.
However this has not been enough because the color problems between modes produce bugs.
Now only the web-mode for PHP works, and I have managed to activate PHP flycheck for web-mode.
The value of the sexp you passed as its second arg is the symbol delete-trailing-whitespace,
because the arg to when is a non-nil list (because you quoted it). So the when condition is always true.
And you never invoke function delete-trailing-whitespace; you just return the symbol that names that function.
