" 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")    "finishendiflet b:did_indent = 1 setlocal indentexpr=CdlGetIndent(v:lnum)setlocal indentkeys&setlocal indentkeys+==~else,=~endif,=~then,;,),= " Only define the function once.if exists("*CdlGetIndent")    "finishendif " find out if an "...=..." expresion its an asignment (or a conditional)" it scans 'line' first, and then the previos linesfun! 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 != 0endf 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 indendfun