git-diff-goto-source is specific to diffs produced by Git. This patch
generalizes the logic and moves it to a new diff-jump in diff.kak.
The main differences are:
- diff-jump handles plain file diffs (i.e. without the -r option). These
have no "diff" line. This means that it needs to parse +++/--- instead.
- diff-jump can go to the old file, not just the new one.
- diff-jump allows to override the base directory and the number of
directory components to strip.
git-diff-goto-source was implemented with several nested try/catch
blocks. Implementing the extra features would have added more
nesting, redundancy or hidden options. To avoid that, I ported the
parsing logic to Perl (which git.kak already depends on). Maybe
it's possible to do the same in awk.
Potential concerns:
- We could move diff-jump to a new rc/tools/diff.kak but then it's not
obvious where the "diff" module belongs to.
- Should diff "diff-jump -1" be spelled "diff-jump -p1"?
In future, the diff parser could be reused to implement a vimdiff-style
feature: given a diff and the "old" line number, we can compute the
corresponding "new" line number. Perhaps diff-jump should get a -client
argument.
We want to move git-diff-goto-source from rc/tools/git.kak
to rc/filetype/diff.kak (or should we could create
rc/tools/diff.kak?). Either way, create the diff module so we can
formalize this dependency.
Currently this module only provides highlighters, so require it
wherever we reference them.
Keep the diff-select-{file,hunk} commands outside the module because
people might already use them in git buffers.
C has header and source files and you need to often switch between them.
Similarly OCaml has .ml (implementation) and .mli (interface files) and
one often needs to switch between them.
This commit provides a simple functionality that allows you to accomplish this.
The closing ``` in the following example was not detected because the
indented code block highlighter was higher up in the hierarchy than the
fenced code block highlighter:
```
indented
```
The codeblock highlighter used to be inline so that it has an effect
inside listblocks. This commits adds a listblock/codeblock highlighter
as a replacement.
Fixes#4351
- Also insert "end" after "do", "else" and "elseif"
- Do not insert "end" after strings or comments containing keywords
- Only insert "end" if the block is empty
An example of the last item is if we want to add a new line to the start
of an unclosed block that already contains statements. @ is the cursor.
-- before
if a then@
x = 1
y = 2
-- after
if a then
@
end
x = 1
y = 2
In this case, inserting the "end" before the statements is probably not
what the programmer wants. It might make more sense to insert the "end"
after the statements, but that is potentially confusing due to spooky
action at a distance. I think the least confusing thing to do in this
situation is to not insert the "end".
This commit makes several improvements to the Lua indentation logic.
- Don't indent if the keyword is inside a string or comment
- Indent inside "do end"
- Indent inside "repeat until"
- Indent after a line ending with "{" or "("
- More accurate un-indentation for the "end" keyword
For the last point, previously we tried to match the indentation of the
starting keyword of the block. However, sometimes this guessed wrong
and produced the wrong indentation, as the following example shows. The
new logic is to indent the "end" by one less level than the contents of
the block.
while true do
if false then
end
end -- This was incorrectly matched with the "if"
rockspec files are used by [Luarocks](https://luarocks.org/), the
most prominent package manager for Lua. Despite the different file
extension, these files are actually Lua files and should be syntax
highlighted as such.
For what it is worth, Neovim also does the same thing that I am doing in
this commit. They recognize both ".lua" and ".rockspec" as being Lua
files (and no other extensions, as far as I know).
