Merge remote-tracking branch 'pickfire/rust-dedent'

17 files changed, 179 insertions, 3 deletions

diff --git a/rc/filetype/rust.kak b/rc/filetype/rust.kak
index be440f75..14071511 100644
--- a/rc/filetype/rust.kak
+++ b/rc/filetype/rust.kak
@@ -75,15 +75,24 @@ define-command -hidden rust-indent-on-new-line %~
     evaluate-commands -draft -itersel %<
         # copy // comments prefix and following white spaces
         try %{
-            execute-keys -draft k <a-x> s ^\h*\K//[!/]?\h* <ret> y gh j P
-        } catch %|
+            execute-keys -draft k <a-x> s ^\h*//[!/]{0,2}\h* <ret> y gh j P
+        } catch %`
             # preserve previous line indent
             try %{ execute-keys -draft <semicolon> K <a-&> }
             # indent after lines ending with { or (
             try %[ execute-keys -draft k <a-x> <a-k> [{(]\h*$ <ret> j <a-gt> ]
             # indent after lines ending with [{(].+ and move first parameter to own line
             try %< execute-keys -draft [c[({],[)}] <ret> <a-k> \A[({][^\n]+\n[^\n]*\n?\z <ret> L i<ret><esc> <gt> <a-S> <a-&> >
-        |
+            # indent lines with a standalone where
+            try %+ execute-keys -draft k <a-x> <a-k> ^\h*where\h*$ <ret> j <a-gt> +
+            # dedent after lines starting with . and ending with , or ;
+            try %_ execute-keys -draft k <a-x> <a-k> ^\h*\..*[,<semicolon>]\h*$ <ret> j <a-lt> _
+            # todo dedent additional unmatched parenthesis
+            # try %& execute-keys -draft k <a-x> s \((?:[^)(]+|\((?:[^)(]+|\([^)(]*\))*\))*\) l Gl s\) %sh{
+                # count previous selections length
+                # printf "j $(echo $kak_selections_length | wc -w) <a-lt>"
+            # } &
+        `
         # filter previous line
         try %{ execute-keys -draft k : rust-trim-indent <ret> }
     >
@@ -93,6 +102,8 @@ define-command -hidden rust-indent-on-opening-curly-brace %[
     evaluate-commands -draft -itersel %_
         # align indent with opening paren when { is entered on a new line after the closing paren
         try %[ execute-keys -draft h <a-F> ) M <a-k> \A\(.*\)\h*\n\h*\{\z <ret> s \A|.\z <ret> 1<a-&> ]
+        # dedent standalone { after impl or fn block without any { in between
+        try %< execute-keys -draft hh <a-?> impl|fn|struct|enum|union <ret> <a-K> \{ <ret> <a-semicolon> <semicolon> ll <a-x> <a-k> ^\h*\{$ <ret> <a-lt> >
     _
 ]
 
diff --git a/test/indent/rust/after-where/cmd b/test/indent/rust/after-where/cmd
new file mode 100644
index 00000000..8682d51e
--- /dev/null
+++ b/test/indent/rust/after-where/cmd
@@ -0,0 +1 @@
+c<ret>bar<esc>
diff --git a/test/indent/rust/after-where/in b/test/indent/rust/after-where/in
new file mode 100644
index 00000000..412f13d3
--- /dev/null
+++ b/test/indent/rust/after-where/in
@@ -0,0 +1,5 @@
+    impl X for T where%( )
+
+    impl X for T
+    where%( )
+
diff --git a/test/indent/rust/after-where/out b/test/indent/rust/after-where/out
new file mode 100644
index 00000000..3cc8383e
--- /dev/null
+++ b/test/indent/rust/after-where/out
@@ -0,0 +1,7 @@
+    impl X for T where
+    bar
+
+    impl X for T
+    where
+        bar
+
diff --git a/test/indent/rust/after-where/rc b/test/indent/rust/after-where/rc
new file mode 100644
index 00000000..64064c25
--- /dev/null
+++ b/test/indent/rust/after-where/rc
@@ -0,0 +1,3 @@
+source "%val{runtime}/colors/default.kak"
+source "%val{runtime}/rc/filetype/rust.kak"
+set buffer filetype rust
diff --git a/test/indent/rust/comment/cmd b/test/indent/rust/comment/cmd
new file mode 100644
index 00000000..8682d51e
--- /dev/null
+++ b/test/indent/rust/comment/cmd
@@ -0,0 +1 @@
+c<ret>bar<esc>
diff --git a/test/indent/rust/comment/in b/test/indent/rust/comment/in
new file mode 100644
index 00000000..d546e66a
--- /dev/null
+++ b/test/indent/rust/comment/in
@@ -0,0 +1,12 @@
+    // foo%( )
+
+    //! foo%( )
+
+    //!! foo%( )
+
+    /// foo%( )
+
+    //// foo%( )
+
+    println!("hello world"); // foo%( )
+
diff --git a/test/indent/rust/comment/out b/test/indent/rust/comment/out
new file mode 100644
index 00000000..6b57b5ef
--- /dev/null
+++ b/test/indent/rust/comment/out
@@ -0,0 +1,18 @@
+    // foo
+    // bar
+
+    //! foo
+    //! bar
+
+    //!! foo
+    //!! bar
+
+    /// foo
+    /// bar
+
+    //// foo
+    //// bar
+
+    println!("hello world"); // foo
+    bar
+
diff --git a/test/indent/rust/comment/rc b/test/indent/rust/comment/rc
new file mode 100644
index 00000000..64064c25
--- /dev/null
+++ b/test/indent/rust/comment/rc
@@ -0,0 +1,3 @@
+source "%val{runtime}/colors/default.kak"
+source "%val{runtime}/rc/filetype/rust.kak"
+set buffer filetype rust
diff --git a/test/indent/rust/dedent/cmd b/test/indent/rust/dedent/cmd
new file mode 100644
index 00000000..8682d51e
--- /dev/null
+++ b/test/indent/rust/dedent/cmd
@@ -0,0 +1 @@
+c<ret>bar<esc>
diff --git a/test/indent/rust/dedent/in b/test/indent/rust/dedent/in
new file mode 100644
index 00000000..21c5f6ef
--- /dev/null
+++ b/test/indent/rust/dedent/in
@@ -0,0 +1,16 @@
+    foo();%( )
+
+    foo(
+        bar().baz(),%( )
+
+    foo(
+        bar()
+            .baz(),%( )
+
+    foo()
+        .bar()
+        .baz();%( )
+
+    let t = "a
+    wah";%( )
+
diff --git a/test/indent/rust/dedent/out b/test/indent/rust/dedent/out
new file mode 100644
index 00000000..cea4d1d3
--- /dev/null
+++ b/test/indent/rust/dedent/out
@@ -0,0 +1,21 @@
+    foo();
+    bar
+
+    foo(
+        bar().baz(),
+        bar
+
+    foo(
+        bar()
+            .baz(),
+        bar
+
+    foo()
+        .bar()
+        .baz();
+    bar
+
+    let t = "a
+    wah";
+    bar
+
diff --git a/test/indent/rust/dedent/rc b/test/indent/rust/dedent/rc
new file mode 100644
index 00000000..64064c25
--- /dev/null
+++ b/test/indent/rust/dedent/rc
@@ -0,0 +1,3 @@
+source "%val{runtime}/colors/default.kak"
+source "%val{runtime}/rc/filetype/rust.kak"
+set buffer filetype rust
diff --git a/test/indent/rust/on-open-paren/cmd b/test/indent/rust/on-open-paren/cmd
new file mode 100644
index 00000000..723e4fa3
--- /dev/null
+++ b/test/indent/rust/on-open-paren/cmd
@@ -0,0 +1 @@
+c{<esc>
diff --git a/test/indent/rust/on-open-paren/in b/test/indent/rust/on-open-paren/in
new file mode 100644
index 00000000..1ca71d62
--- /dev/null
+++ b/test/indent/rust/on-open-paren/in
@@ -0,0 +1,35 @@
+    fn foo<T>(x: T)
+    where
+        T: Debug
+        %( )
+
+    fn foo<T>(x: T) where T: Debug %( )
+
+    impl<T> X for T
+    where
+        T: Debug
+        %( )
+
+    impl<T> X for T where T: Debug %( )
+
+    struct X<T>
+    where
+        T: Debug
+        %( )
+
+    struct X<T> where T: Debug %( )
+
+    enum X<T>
+    where
+        T: Debug
+        %( )
+
+    enum X<T> where T: Debug %( )
+
+    union X<T>
+    where
+        T: Debug
+        %( )
+
+    union X<T> where T: Debug %( )
+
diff --git a/test/indent/rust/on-open-paren/out b/test/indent/rust/on-open-paren/out
new file mode 100644
index 00000000..de125ea7
--- /dev/null
+++ b/test/indent/rust/on-open-paren/out
@@ -0,0 +1,35 @@
+    fn foo<T>(x: T)
+    where
+        T: Debug
+    {
+
+    fn foo<T>(x: T) where T: Debug {
+
+    impl<T> X for T
+    where
+        T: Debug
+    {
+
+    impl<T> X for T where T: Debug {
+
+    struct X<T>
+    where
+        T: Debug
+    {
+
+    struct X<T> where T: Debug {
+
+    enum X<T>
+    where
+        T: Debug
+    {
+
+    enum X<T> where T: Debug {
+
+    union X<T>
+    where
+        T: Debug
+    {
+
+    union X<T> where T: Debug {
+
diff --git a/test/indent/rust/on-open-paren/rc b/test/indent/rust/on-open-paren/rc
new file mode 100644
index 00000000..64064c25
--- /dev/null
+++ b/test/indent/rust/on-open-paren/rc
@@ -0,0 +1,3 @@
+source "%val{runtime}/colors/default.kak"
+source "%val{runtime}/rc/filetype/rust.kak"
+set buffer filetype rust