1 files changed, 106 insertions, 0 deletions
diff --git a/runtime/indent/eiffel.vim b/runtime/indent/eiffel.vim
new file mode 100644
index 000000000..ac31d1043
--- /dev/null
+++ b/runtime/indent/eiffel.vim
@@ -0,0 +1,106 @@
+" Vim indent file
+" Language:	Eiffel
+" Maintainer:	David Clarke <gadicath@dishevelled.net>
+" $Date$
+" $Revision$
+" URL: http://gadicath.webhop.net/other/eiffel.vim
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetEiffelIndent()
+setlocal nolisp
+setlocal nosmartindent
+setlocal nocindent
+setlocal autoindent
+setlocal comments=:--
+setlocal indentkeys+==end,=else,=ensure,=require,=check,=loop,=until
+setlocal indentkeys+==creation,=feature,=inherit,=class,=is,=redefine,=rename,=variant
+setlocal indentkeys+==invariant,=do,=local,=export
+setlocal sw=3
+setlocal tw=78
+
+" Define some stuff
+" keywords grouped by indenting
+let s:trust_user_indent = '\(+\)\(\s*\(--\).*\)\=$'
+let s:relative_indent = '^\s*\(deferred\|class\|feature\|creation\|inherit\|loop\|from\|until\|if\|else\|elseif\|ensure\|require\|check\|do\|local\|invariant\|variant\|rename\|redefine\|do\|export\)\>'
+let s:outdent = '^\s*\(else\|invariant\|variant\|do\|require\|until\|loop\|local\)\>'
+let s:no_indent = '^\s*\(class\|feature\|creation\|inherit\)\>'
+let s:single_dent = '^[^-]\+[[:alnum:]]\+ is\(\s*\(--\).*\)\=$'
+let s:inheritance_dent = '\s*\(redefine\|rename\|export\)\>'
+
+
+" Only define the function once.
+if exists("*GetEiffelIndent")
+  finish
+endif
+
+function GetEiffelIndent()
+
+  " Eiffel Class indenting
+  "
+  " Find a non-blank line above the current line.
+  let lnum = prevnonblank(v:lnum - 1)
+
+  " At the start of the file use zero indent.
+  if lnum == 0
+    return 0
+  endif
+
+  " trust the user's indenting
+  if getline(lnum) =~ s:trust_user_indent
+    return -1
+  endif
+
+  " Add a 'shiftwidth' after lines that start with an indent word
+  let ind = indent(lnum)
+  if getline(lnum) =~ s:relative_indent
+    let ind = ind + &sw
+  endif
+
+  " Indent to single indent
+  if getline(v:lnum) =~ s:single_dent && getline(v:lnum) !~ s:relative_indent
+	   \ && getline(v:lnum) !~ '\s*\<\(and\|or\|implies\)\>'
+     let ind = &sw
+  endif
+
+  " Indent to double indent
+  if getline(v:lnum) =~ s:inheritance_dent
+     let ind = 2 * &sw
+  endif
+
+  " Indent line after the first line of the function definition
+  if getline(lnum) =~ s:single_dent
+     let ind = ind + &sw
+  endif
+
+  " The following should always be at the start of a line, no indenting
+  if getline(v:lnum) =~ s:no_indent
+     let ind = 0
+  endif
+
+  " Subtract a 'shiftwidth', if this isn't the first thing after the 'is'
+  " or first thing after the 'do'
+  if getline(v:lnum) =~ s:outdent && getline(v:lnum - 1) !~ s:single_dent
+	\ && getline(v:lnum - 1) !~ '^\s*do\>'
+    let ind = ind - &sw
+  endif
+
+  " Subtract a shiftwidth for end statements
+  if getline(v:lnum) =~ '^\s*end\>'
+    let ind = ind - &sw
+  endif
+
+  " set indent of zero end statements that are at an indent of 3, this should
+  " only ever be the class's end.
+  if getline(v:lnum) =~ '^\s*end\>' && ind == 3
+    let ind = 0
+  endif
+
+  return ind
+endfunction
+
+" vim:sw=2