improve haskell ligatures, add rust ligature conceals

1 files changed, 21 insertions, 0 deletions

diff --git a/ligature_plugins/rust.vim b/ligature_plugins/rust.vim
new file mode 100644
index 0000000..a4a3d41
--- /dev/null
+++ b/ligature_plugins/rust.vim
@@ -0,0 +1,21 @@
+setlocal conceallevel=1
+syntax clear rustOperator
+
+syntax match rustBelleOperator "<=" conceal cchar=≤
+syntax match rustBelleOperator ">=" conceal cchar=≥
+syntax match rustBelleOperator "!=" conceal cchar=≠
+
+" ->
+syn match rustArrowCharacter   /->/      contains=PointerTail,PointerHead
+syn match PointerTail          /-/       contained containedin=rustReturn conceal cchar=
+syn match PointerHead          /-\@<=>/  contained containedin=rustReturn conceal cchar=→
+
+" =>
+syn match rustImplies   /=>/      contains=ImpliesTail,ImpliesHead
+syn match ImpliesTail  /=/        contained containedin=rustImplies conceal cchar=
+syn match ImpliesHead  /=\@<=>/   contained containedin=rustImplies conceal cchar=⇒
+
+" ==
+syn match rustIsEqual   /==/     contains=FirstEqual,SecondEqual
+syn match FirstEqual  /=/        contained containedin=rustIsEqual conceal cchar=
+syn match SecondEqual  /=\@<=>/  contained containedin=rustIsEqual conceal cchar=