1 files changed, 54 insertions, 0 deletions
diff --git a/indent/kotlin.vim b/indent/kotlin.vim
new file mode 100644
index 00000000..20bc1ee9
--- /dev/null
+++ b/indent/kotlin.vim
@@ -0,0 +1,54 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'kotlin') == -1
+  
+" Vim indent file
+" Language: Kotlin
+" Maintainer: Alexander Udalov
+" Latest Revision: 27 June 2015
+
+if exists("b:did_indent")
+    finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetKotlinIndent()
+setlocal indentkeys=0},0),!^F,o,O,e,<CR>
+setlocal autoindent " TODO ?
+
+" TODO teach it to count bracket balance, etc.
+function! GetKotlinIndent()
+    if v:lnum == 0
+        return 0
+    endif
+
+    let prev_num = prevnonblank(v:lnum - 1)
+    let prev = getline(prev_num)
+    let prev_indent = indent(prev_num)
+    let cur = getline(v:lnum)
+
+    let prev_open_paren = prev =~ '^.*(\s*$'
+    let cur_close_paren = cur =~ '^\s*).*$'
+
+    if prev_open_paren && !cur_close_paren
+        return prev_indent + 2 * &shiftwidth
+    endif
+
+    if cur_close_paren && !prev_open_paren
+        return prev_indent - 2 * &shiftwidth
+    endif
+
+
+    let prev_open_brace = prev =~ '^.*\({\|->\)\s*$'
+    let cur_close_brace = cur =~ '^\s*}.*$'
+
+    if prev_open_brace && !cur_close_brace
+        return prev_indent + &shiftwidth
+    endif
+
+    if cur_close_brace && !prev_open_brace
+        return prev_indent - &shiftwidth
+    endif
+
+    return prev_indent
+endfunction
+
+endif