--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/runtime/indent/cdl.vim	Sat Nov 10 15:07:22 2007 +0900
@@ -0,0 +1,129 @@
+" Description:	Comshare Dimension Definition Language (CDL)
+" Author:	Raul Segura Acevedo <raulseguraaceved@netscape.net>
+" Last Change:	Fri Nov 30 13:35:48  2001 CST
+
+if exists("b:did_indent")
+    "finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=CdlGetIndent(v:lnum)
+setlocal indentkeys&
+setlocal indentkeys+==~else,=~endif,=~then,;,),=
+
+" Only define the function once.
+if exists("*CdlGetIndent")
+    "finish
+endif
+
+" find out if an "...=..." expresion its an asignment (or a conditional)
+" it scans 'line' first, and then the previos lines
+fun! CdlAsignment(lnum, line)
+  let f = -1
+  let lnum = a:lnum
+  let line = a:line
+  while lnum > 0 && f == -1
+    " line without members [a] of [b]:[c]...
+    let inicio = 0
+    while 1
+      " keywords that help to decide
+      let inicio = matchend(line, '\c\<\(expr\|\a*if\|and\|or\|not\|else\|then\|memberis\|\k\+of\)\>\|[<>;]', inicio)
+      if inicio < 0
+	break
+      endif
+      " it's formula if there's a ';', 'elsE', 'theN', 'enDif' or 'expr'
+      " conditional if there's a '<', '>', 'elseif', 'if', 'and', 'or', 'not',
+      " 'memberis', 'childrenof' and other \k\+of funcions
+      let f = line[inicio-1] =~? '[en;]' || strpart(line, inicio-4, 4) =~? 'ndif\|expr'
+    endw
+    let lnum = prevnonblank(lnum-1)
+    let line = substitute(getline(lnum), '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g')
+  endw
+  " if we hit the start of the file then f = -1, return 1 (formula)
+  return f != 0
+endf
+
+fun! CdlGetIndent(lnum)
+  let thisline = getline(a:lnum)
+  if match(thisline, '^\s*\(\k\+\|\[[^]]*]\)\s*\(,\|;\s*$\)') >= 0
+    " it's an attributes line
+    return &sw
+  elseif match(thisline, '^\c\s*\([{}]\|\/[*/]\|dimension\|schedule\|group\|hierarchy\|class\)') >= 0
+    " it's a header or '{' or '}' or a comment
+    return 0
+  end
+
+  let lnum = prevnonblank(a:lnum-1)
+  " Hit the start of the file, use zero indent.
+  if lnum == 0
+    return 0
+  endif
+
+  " PREVIOUS LINE
+  let ind = indent(lnum)
+  let line = getline(lnum)
+  let f = -1 " wether a '=' is a conditional or a asignment, -1 means we don't know yet
+  " one 'closing' element at the beginning of the line has already reduced the
+  "   indent, but 'else', 'elseif' & 'then' increment it for the next line
+  " '=' at the beginning has already de right indent (increased for asignments)
+  let inicio = matchend(line, '^\c\s*\(else\a*\|then\|endif\|/[*/]\|[);={]\)')
+  if inicio > 0
+    let c = line[inicio-1]
+    " ')' and '=' don't change indent and are useless to set 'f'
+    if c == '{'
+      return &sw
+    elseif c != ')' && c != '='
+      let f = 1 " all but 'elseif' are followed by a formula
+      if c ==? 'n' || c ==? 'e' " 'then', 'else'
+	let ind = ind + &sw
+      elseif strpart(line, inicio-6, 6) ==? 'elseif' " elseif, set f to conditional
+	let ind = ind + &sw
+	let f = 0
+      end
+    end
+  end
+
+  " remove members [a] of [b]:[c]... (inicio remainds valid)
+  let line = substitute(line, '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g')
+  while 1
+    " search for the next interesting element
+    let inicio=matchend(line, '\c\<if\|endif\|[()=;]', inicio)
+    if inicio < 0
+      break
+    end
+
+    let c = line[inicio-1]
+    " 'expr(...)' containing the formula
+    if strpart(line, inicio-5, 5) ==? 'expr('
+      let ind = 0
+      let f = 1
+    elseif c == ')' || c== ';' || strpart(line, inicio-5, 5) ==? 'endif'
+      let ind = ind - &sw
+    elseif c == '(' || c ==? 'f' " '(' or 'if'
+      let ind = ind + &sw
+    else " c == '='
+      " if it is an asignment increase indent
+      if f == -1 " we don't know yet, find out
+	let f = CdlAsignment(lnum, strpart(line, 0, inicio))
+      end
+      if f == 1 " formula increase it
+	let ind = ind + &sw
+      end
+    end
+  endw
+
+  " CURRENT LINE, if it starts with a closing element, decrease indent
+  " or if it starts with '=' (asignment), increase indent
+  if match(thisline, '^\c\s*\(else\|then\|endif\|[);]\)') >= 0
+    let ind = ind - &sw
+  elseif match(thisline, '^\s*=') >= 0
+    if f == -1 " we don't know yet if is an asignment, find out
+      let f = CdlAsignment(lnum, "")
+    end
+    if f == 1 " formula increase it
+      let ind = ind + &sw
+    end
+  end
+
+  return ind
+endfun