1" Description: Comshare Dimension Definition Language (CDL) 2" Author: Raul Segura Acevedo <[email protected]> 3" Last Change: Fri Nov 30 13:35:48 2001 CST 4 5if exists("b:did_indent") 6 "finish 7endif 8let b:did_indent = 1 9 10setlocal indentexpr=CdlGetIndent(v:lnum) 11setlocal indentkeys& 12setlocal indentkeys+==~else,=~endif,=~then,;,),= 13 14" Only define the function once. 15if exists("*CdlGetIndent") 16 "finish 17endif 18 19" find out if an "...=..." expresion is an assignment (or a conditional) 20" it scans 'line' first, and then the previos lines 21fun! CdlAsignment(lnum, line) 22 let f = -1 23 let lnum = a:lnum 24 let line = a:line 25 while lnum > 0 && f == -1 26 " line without members [a] of [b]:[c]... 27 let inicio = 0 28 while 1 29 " keywords that help to decide 30 let inicio = matchend(line, '\c\<\(expr\|\a*if\|and\|or\|not\|else\|then\|memberis\|\k\+of\)\>\|[<>;]', inicio) 31 if inicio < 0 32 break 33 endif 34 " it's formula if there's a ';', 'elsE', 'theN', 'enDif' or 'expr' 35 " conditional if there's a '<', '>', 'elseif', 'if', 'and', 'or', 'not', 36 " 'memberis', 'childrenof' and other \k\+of funcions 37 let f = line[inicio-1] =~? '[en;]' || strpart(line, inicio-4, 4) =~? 'ndif\|expr' 38 endw 39 let lnum = prevnonblank(lnum-1) 40 let line = substitute(getline(lnum), '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 41 endw 42 " if we hit the start of the file then f = -1, return 1 (formula) 43 return f != 0 44endf 45 46fun! CdlGetIndent(lnum) 47 let thisline = getline(a:lnum) 48 if match(thisline, '^\s*\(\k\+\|\[[^]]*]\)\s*\(,\|;\s*$\)') >= 0 49 " it's an attributes line 50 return shiftwidth() 51 elseif match(thisline, '^\c\s*\([{}]\|\/[*/]\|dimension\|schedule\|group\|hierarchy\|class\)') >= 0 52 " it's a header or '{' or '}' or a comment 53 return 0 54 end 55 56 let lnum = prevnonblank(a:lnum-1) 57 " Hit the start of the file, use zero indent. 58 if lnum == 0 59 return 0 60 endif 61 62 " PREVIOUS LINE 63 let ind = indent(lnum) 64 let line = getline(lnum) 65 66 " Whether a '=' is a conditional or an assignment. -1 means we don't know 67 " yet. 68 " One 'closing' element at the beginning of the line has already reduced the 69 " indent, but 'else', 'elseif' & 'then' increment it for the next line. 70 " '=' at the beginning already has the right indent (increased for 71 " asignments). 72 let f = -1 73 let inicio = matchend(line, '^\c\s*\(else\a*\|then\|endif\|/[*/]\|[);={]\)') 74 if inicio > 0 75 let c = line[inicio-1] 76 " ')' and '=' don't change indent and are useless to set 'f' 77 if c == '{' 78 return shiftwidth() 79 elseif c != ')' && c != '=' 80 let f = 1 " all but 'elseif' are followed by a formula 81 if c ==? 'n' || c ==? 'e' " 'then', 'else' 82 let ind = ind + shiftwidth() 83 elseif strpart(line, inicio-6, 6) ==? 'elseif' " elseif, set f to conditional 84 let ind = ind + shiftwidth() 85 let f = 0 86 end 87 end 88 end 89 90 " remove members [a] of [b]:[c]... (inicio remainds valid) 91 let line = substitute(line, '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 92 while 1 93 " search for the next interesting element 94 let inicio=matchend(line, '\c\<if\|endif\|[()=;]', inicio) 95 if inicio < 0 96 break 97 end 98 99 let c = line[inicio-1] 100 " 'expr(...)' containing the formula 101 if strpart(line, inicio-5, 5) ==? 'expr(' 102 let ind = 0 103 let f = 1 104 elseif c == ')' || c== ';' || strpart(line, inicio-5, 5) ==? 'endif' 105 let ind = ind - shiftwidth() 106 elseif c == '(' || c ==? 'f' " '(' or 'if' 107 let ind = ind + shiftwidth() 108 else " c == '=' 109 " if it is an asignment increase indent 110 if f == -1 " we don't know yet, find out 111 let f = CdlAsignment(lnum, strpart(line, 0, inicio)) 112 end 113 if f == 1 " formula increase it 114 let ind = ind + shiftwidth() 115 end 116 end 117 endw 118 119 " CURRENT LINE, if it starts with a closing element, decrease indent 120 " or if it starts with '=' (asignment), increase indent 121 if match(thisline, '^\c\s*\(else\|then\|endif\|[);]\)') >= 0 122 let ind = ind - shiftwidth() 123 elseif match(thisline, '^\s*=') >= 0 124 if f == -1 " we don't know yet if is an asignment, find out 125 let f = CdlAsignment(lnum, "") 126 end 127 if f == 1 " formula increase it 128 let ind = ind + shiftwidth() 129 end 130 end 131 132 return ind 133endfun 134