-*- llvm/utils/vim/README -*-
-These are syntax highlighting files for the VIM editor. Included are:
+This directory contains settings for the vim editor to work on llvm *.ll and
+tablegen *.td files. It comes with filetype detection rules in the (ftdetect),
+syntax highlighting (syntax), some minimal sensible default settings (ftplugin)
+and indentation plugins (indent).
-* llvm.vim
-
- Syntax highlighting mode for LLVM assembly files. To use, copy `llvm.vim' to
- ~/.vim/syntax and add this code to your ~/.vimrc :
-
- augroup filetype
- au! BufRead,BufNewFile *.ll set filetype=llvm
- augroup END
-
-* tablegen.vim
-
- Syntax highlighting mode for TableGen description files. To use, copy
- `tablegen.vim' to ~/.vim/syntax and add this code to your ~/.vimrc :
-
- augroup filetype
- au! BufRead,BufNewFile *.td set filetype=tablegen
- augroup END
-
-
-If you prefer, instead of making copies you can make symlinks from
-~/.vim/syntax/... to the syntax files in your LLVM source tree. Apparently
-this did not work with older versions of vim however, so if this doesn't
-work you may need to make actual copies of the files.
-
-Another option, if you do not already have a ~/.vim/syntax directory, is
-to symlink ~/.vim/syntax itself to llvm/utils/vim .
+To install copy all subdirectories to your $HOME/.vim or if you prefer create
+symlinks to the files here. Do not copy the vimrc file here it is only meant as an inspiration and starting point for those working on llvm c++ code.
Note: If you notice missing or incorrect syntax highlighting, please contact
<llvmbugs [at] cs.uiuc.edu>; if you wish to provide a patch to improve the
--- /dev/null
+" Vim indent file
+" Language: llvm
+" Maintainer: The LLVM team, http://llvm.org/
+" What this indent plugin currently does:
+" - If no other rule matches copy indent from previous non-empty,
+" non-commented line
+" - On '}' align the same as the line containing the matching '{'
+" - If previous line ends with ':' increase indentation
+" - If the current line ends with ':' indent at the same level as the
+" enclosing '{'/'}' block
+" Stuff that would be nice to add:
+" - Continue comments on next line
+" - If there is an opening+unclosed parenthesis on previous line indent to that
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal shiftwidth=2 expandtab
+
+setlocal indentkeys=0{,0},<:>,!^F,o,O,e
+setlocal indentexpr=GetLLVMIndent()
+
+if exists("*GetLLVMIndent")
+ finish
+endif
+
+function! FindOpenBracket(lnum)
+ call cursor(a:lnum, 1)
+ return searchpair('{', '', '}', 'bW')
+endfun
+
+function! GetLLVMIndent()
+ " On '}' align the same as the line containing the matching '{'
+ let thisline = getline(v:lnum)
+ if thisline =~ '^\s*}'
+ call cursor(v:lnum, 1)
+ silent normal %
+ let opening_lnum = line('.')
+ if opening_lnum != v:lnum
+ return indent(opening_lnum)
+ endif
+ endif
+
+ " Indent labels the same as the current opening block
+ if thisline =~ ':\s*$'
+ let blockbegin = FindOpenBracket(v:lnum)
+ if blockbegin > 0
+ return indent(blockbegin)
+ endif
+ endif
+
+ " Find a non-blank not-completely commented line above the current line.
+ let prev_lnum = prevnonblank(v:lnum - 1)
+ while prev_num > 0 && synIDattr(synID(prev_lnum, indent(prev_lnum)+1, 0), "name") =? "string\|comment"
+ let prev_lnum = prevnonblank(prev_lnum-1)
+ endwhile
+ " Hit the start of the file, use zero indent.
+ if prev_lnum == 0
+ return 0
+ endif
+
+ let ind = indent(prev_lnum)
+ let prevline = getline(prev_lnum)
+
+ " Add a 'shiftwidth' after lines that start a block or labels
+ if prevline =~ '{\s*$' || prevline =~ ':\s*$'
+ let ind = ind + &shiftwidth
+ endif
+
+ return ind
+endfunction
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