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Edit File: cmake.vim

" =============================================================================
" 
"   Program:   CMake - Cross-Platform Makefile Generator
"   Module:    $RCSfile: cmake-indent.vim,v $
"   Language:  VIM
"   Date:      $Date: 2006/09/23 21:09:08 $
"   Version:   $Revision: 1.7 $
" 
" =============================================================================

" Vim indent file
" Language:     CMake (ft=cmake)
" Author:       Andy Cedilnik <andy.cedilnik@kitware.com>
" Maintainer:   Andy Cedilnik <andy.cedilnik@kitware.com>
" Last Change:  $Date: 2006/09/23 21:09:08 $
" Version:      $Revision: 1.7 $
"
" Licence:      The CMake license applies to this file. See
"               http://www.cmake.org/HTML/Copyright.html
"               This implies that distribution with Vim is allowed

if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal indentexpr=CMakeGetIndent(v:lnum)

" 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*' .
                    \            '$' . cmake_regex_comment . '$\?$'

" Add
  if previous_line =~? cmake_indent_comment_line " Handle comments
    let ind = ind
  else
    if previous_line =~? cmake_indent_begin_regex
      let ind = ind + &sw
    endif
    if previous_line =~? cmake_indent_open_regex
      let ind = ind + &sw
    endif
  endif

" Subtract
  if this_line =~? cmake_indent_end_regex
    let ind = ind - &sw
  endif
  if previous_line =~? cmake_indent_close_regex
    let ind = ind - &sw
  endif

return ind
endfun

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