Add cmake support, closes #245

README.md

@@ -48,6 +48,7 @@ If you need full functionality of any plugin, please use it directly with your p
 - [caddyfile](https://github.com/isobit/vim-caddyfile) (syntax, indent, ftplugin)
 - [cjsx](https://github.com/mtscout6/vim-cjsx) (syntax, ftplugin)
 - [clojure](https://github.com/guns/vim-clojure-static) (syntax, indent, autoload, ftplugin)
+- [cmake](https://github.com/pboettch/vim-cmake-syntax) (syntax, indent)
 - [coffee-script](https://github.com/kchmck/vim-coffee-script) (syntax, indent, compiler, autoload, ftplugin)
 - [cql](https://github.com/elubow/cql-vim) (syntax)
 - [cryptol](https://github.com/victoredwardocallaghan/cryptol.vim) (syntax, compiler, ftplugin)

build

@@ -120,6 +120,7 @@ PACKS="
   caddyfile:isobit/vim-caddyfile
   cjsx:mtscout6/vim-cjsx
   clojure:guns/vim-clojure-static
+  cmake:pboettch/vim-cmake-syntax
   coffee-script:kchmck/vim-coffee-script
   cryptol:victoredwardocallaghan/cryptol.vim
   crystal:rhysd/vim-crystal

ftdetect/polyglot.vim

@@ -91,6 +91,10 @@ augroup filetypedetect
 autocmd BufNewFile,BufRead *.clj,*.cljs,*.edn,*.cljx,*.cljc,{build,profile}.boot setlocal filetype=clojure
 augroup END
 
+augroup filetypedetect
+" cmake:pboettch/vim-cmake-syntax
+augroup END
+
 augroup filetypedetect
 " coffee-script:kchmck/vim-coffee-script
 " Language:    CoffeeScript

indent/cmake.vim

@@ -0,0 +1,93 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'cmake') == -1
+  
+" Vim indent file
+" Language:     CMake (ft=cmake)
+" Author:       Andy Cedilnik <andy.cedilnik@kitware.com>
+" Maintainer:   Dimitri Merejkowsky <d.merej@gmail.com>
+" Former Maintainer: Karthik Krishnan <karthik.krishnan@kitware.com>
+" Last Change:  2017 Aug 30
+"
+" Licence:      The CMake license applies to this file. See
+"               https://cmake.org/licensing
+"               This implies that distribution with Vim is allowed
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+let s:keepcpo= &cpo
+set cpo&vim
+
+setlocal indentexpr=CMakeGetIndent(v:lnum)
+setlocal indentkeys+==ENDIF(,ENDFOREACH(,ENDMACRO(,ELSE(,ELSEIF(,ENDWHILE(
+
+" Only define the function once.
+if exists("*CMakeGetIndent")
+  finish
+endif
+
+fun! CMakeGetIndent(lnum)
+  let this_line = getline(a:lnum)
+
+  " Find a non-blank line above the current line.
+  let lnum = a:lnum
+  let lnum = prevnonblank(lnum - 1)
+  let previous_line = getline(lnum)
+
+  " Hit the start of the file, use zero indent.
+  if lnum == 0
+    return 0
+  endif
+
+  let ind = indent(lnum)
+
+  let or = '\|'
+  " Regular expressions used by line indentation function.
+  let cmake_regex_comment = '#.*'
+  let cmake_regex_identifier = '[A-Za-z][A-Za-z0-9_]*'
+  let cmake_regex_quoted = '"\([^"\\]\|\\.\)*"'
+  let cmake_regex_arguments = '\(' . cmake_regex_quoted .
+                    \       or . '\$(' . cmake_regex_identifier . ')' .
+                    \       or . '[^()\\#"]' . or . '\\.' . '\)*'
+
+  let cmake_indent_comment_line = '^\s*' . cmake_regex_comment
+  let cmake_indent_blank_regex = '^\s*$'
+  let cmake_indent_open_regex = '^\s*' . cmake_regex_identifier .
+                    \           '\s*(' . cmake_regex_arguments .
+                    \           '\(' . cmake_regex_comment . '\)\?$'
+
+  let cmake_indent_close_regex = '^' . cmake_regex_arguments .
+                    \            ')\s*' .
+                    \            '\(' . cmake_regex_comment . '\)\?$'
+
+  let cmake_indent_begin_regex = '^\s*\(IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\|FUNCTION\)\s*('
+  let cmake_indent_end_regex = '^\s*\(ENDIF\|ENDFOREACH\|ENDMACRO\|ELSE\|ELSEIF\|ENDWHILE\|ENDFUNCTION\)\s*('
+
+  " Add
+  if previous_line =~? cmake_indent_comment_line " Handle comments
+    let ind = ind
+  else
+    if previous_line =~? cmake_indent_begin_regex
+      let ind = ind + shiftwidth()
+    endif
+    if previous_line =~? cmake_indent_open_regex
+      let ind = ind + shiftwidth()
+    endif
+  endif
+
+  " Subtract
+  if this_line =~? cmake_indent_end_regex
+    let ind = ind - shiftwidth()
+  endif
+  if previous_line =~? cmake_indent_close_regex
+    let ind = ind - shiftwidth()
+  endif
+
+  return ind
+endfun
+
+let &cpo = s:keepcpo
+unlet s:keepcpo
+
+endif