100 lines
3.0 KiB
VimL
100 lines
3.0 KiB
VimL
" Vim indent file
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" Language: CMake (ft=cmake)
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" Author: Andy Cedilnik <andy.cedilnik@kitware.com>
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" Maintainer: Dimitri Merejkowsky <d.merej@gmail.com>
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" Former Maintainer: Karthik Krishnan <karthik.krishnan@kitware.com>
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" Last Change: 2023 Dec 12
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"
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" License: The CMake license applies to this file. See
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" https://cmake.org/licensing
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" This implies that distribution with Vim is allowed
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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setlocal indentexpr=CMakeGetIndent(v:lnum)
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setlocal indentkeys+==ENDIF(,ENDFOREACH(,ENDMACRO(,ELSE(,ELSEIF(,ENDWHILE(
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let b:undo_indent = "setl inde< indk<"
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" Only define the function once.
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if exists("*CMakeGetIndent")
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finish
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endif
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let s:keepcpo= &cpo
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set cpo&vim
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fun! CMakeGetIndent(lnum)
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let this_line = getline(a:lnum)
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" Find a non-blank line above the current line.
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let lnum = a:lnum
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let lnum = prevnonblank(lnum - 1)
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let previous_line = getline(lnum)
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" Hit the start of the file, use zero indent.
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if lnum == 0
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return 0
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endif
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let ind = indent(lnum)
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let or = '\|'
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" Regular expressions used by line indentation function.
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let cmake_regex_comment = '#.*'
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let cmake_regex_identifier = '[A-Za-z][A-Za-z0-9_]*'
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let cmake_regex_quoted = '"\([^"\\]\|\\.\)*"'
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let cmake_regex_arguments = '\(' . cmake_regex_quoted .
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\ or . '\$(' . cmake_regex_identifier . ')' .
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\ or . '[^()\\#"]' . or . '\\.' . '\)*'
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let cmake_indent_comment_line = '^\s*' . cmake_regex_comment
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let cmake_indent_blank_regex = '^\s*$'
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let cmake_indent_open_regex = '^\s*' . cmake_regex_identifier .
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\ '\s*(' . cmake_regex_arguments .
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\ '\(' . cmake_regex_comment . '\)\?$'
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let cmake_indent_close_regex = '^' . cmake_regex_arguments .
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\ ')\s*' .
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\ '\(' . cmake_regex_comment . '\)\?$'
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let cmake_closing_parens_line = '^\s*\()\+\)\s*$'
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let cmake_indent_begin_regex = '^\s*\(BLOCK\|IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\|FUNCTION\)\s*('
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let cmake_indent_end_regex = '^\s*\(ENDBLOCK\|ENDIF\|ENDFOREACH\|ENDMACRO\|ELSE\|ELSEIF\|ENDWHILE\|ENDFUNCTION\)\s*('
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if this_line =~? cmake_closing_parens_line
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if previous_line !~? cmake_indent_open_regex
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let ind = ind - shiftwidth()
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endif
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else
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" Add
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if previous_line =~? cmake_indent_comment_line " Handle comments
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let ind = ind
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else
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if previous_line =~? cmake_indent_begin_regex
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let ind = ind + shiftwidth()
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endif
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if previous_line =~? cmake_indent_open_regex
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let ind = ind + shiftwidth()
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endif
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endif
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" Subtract
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if this_line =~? cmake_indent_end_regex
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let ind = ind - shiftwidth()
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endif
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if previous_line !~? cmake_closing_parens_line
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if previous_line =~? cmake_indent_close_regex
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let ind = ind - shiftwidth()
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endif
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endif
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endif
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return ind
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endfun
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let &cpo = s:keepcpo
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unlet s:keepcpo
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