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" =============================================================================
"
" Program: CMake - Cross-Platform Makefile Generator
" Module: $RCSfile$
" Language: C++
" Date: $Date$
" Version: $Revision$
"
" Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
" See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
"
" This software is distributed WITHOUT ANY WARRANTY" without even
" the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
" PURPOSE. See the above copyright notices for more information.
"
" =============================================================================
" Vim indent file
" Language: CMake (ft=cmake)
" Author: Andy Cedilnik <andy.cedilnik@kitware.com>
" URL: http://www.cmake.org
" Last Change: Sun Mar 23 15:41:55 EST 2003
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*' .
\ '\(' . cmake_regex_comment . '\)\?$'
let cmake_indent_begin_regex = '^\s*\(IF\|MACRO\|FOREACH\|ELSE\)\s*('
let cmake_indent_end_regex = '^\s*\(ENDIF\|ENDFOREACH\|ENDMACRO\|ELSE\)\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 + &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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