1" Description: Comshare Dimension Definition Language (CDL) 2" Maintainer: Raul Segura Acevedo <[email protected]> (Invalid email address) 3" Doug Kearns <[email protected]> 4" Last Change: Fri Nov 30 13:35:48 2001 CST 5 6if exists("b:did_indent") 7 "finish 8endif 9let b:did_indent = 1 10 11setlocal indentexpr=CdlGetIndent(v:lnum) 12setlocal indentkeys& 13setlocal indentkeys+==~else,=~endif,=~then,;,),= 14 15" Only define the function once. 16if exists("*CdlGetIndent") 17 "finish 18endif 19 20" find out if an "...=..." expression is an assignment (or a conditional) 21" it scans 'line' first, and then the previous lines 22fun! CdlAsignment(lnum, line) 23 let f = -1 24 let lnum = a:lnum 25 let line = a:line 26 while lnum > 0 && f == -1 27 " line without members [a] of [b]:[c]... 28 let inicio = 0 29 while 1 30 " keywords that help to decide 31 let inicio = matchend(line, '\c\<\(expr\|\a*if\|and\|or\|not\|else\|then\|memberis\|\k\+of\)\>\|[<>;]', inicio) 32 if inicio < 0 33 break 34 endif 35 " it's formula if there's a ';', 'elsE', 'theN', 'enDif' or 'expr' 36 " conditional if there's a '<', '>', 'elseif', 'if', 'and', 'or', 'not', 37 " 'memberis', 'childrenof' and other \k\+of functions 38 let f = line[inicio-1] =~? '[en;]' || strpart(line, inicio-4, 4) =~? 'ndif\|expr' 39 endw 40 let lnum = prevnonblank(lnum-1) 41 let line = substitute(getline(lnum), '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 42 endw 43 " if we hit the start of the file then f = -1, return 1 (formula) 44 return f != 0 45endf 46 47fun! CdlGetIndent(lnum) 48 let thisline = getline(a:lnum) 49 if match(thisline, '^\s*\(\k\+\|\[[^]]*]\)\s*\(,\|;\s*$\)') >= 0 50 " it's an attributes line 51 return shiftwidth() 52 elseif match(thisline, '^\c\s*\([{}]\|\/[*/]\|dimension\|schedule\|group\|hierarchy\|class\)') >= 0 53 " it's a header or '{' or '}' or a comment 54 return 0 55 end 56 57 let lnum = prevnonblank(a:lnum-1) 58 " Hit the start of the file, use zero indent. 59 if lnum == 0 60 return 0 61 endif 62 63 " PREVIOUS LINE 64 let ind = indent(lnum) 65 let line = getline(lnum) 66 67 " Whether a '=' is a conditional or an assignment. -1 means we don't know 68 " yet. 69 " One 'closing' element at the beginning of the line has already reduced the 70 " indent, but 'else', 'elseif' & 'then' increment it for the next line. 71 " '=' at the beginning already has the right indent (increased for 72 " asignments). 73 let f = -1 74 let inicio = matchend(line, '^\c\s*\(else\a*\|then\|endif\|/[*/]\|[);={]\)') 75 if inicio > 0 76 let c = line[inicio-1] 77 " ')' and '=' don't change indent and are useless to set 'f' 78 if c == '{' 79 return shiftwidth() 80 elseif c != ')' && c != '=' 81 let f = 1 " all but 'elseif' are followed by a formula 82 if c ==? 'n' || c ==? 'e' " 'then', 'else' 83 let ind = ind + shiftwidth() 84 elseif strpart(line, inicio-6, 6) ==? 'elseif' " elseif, set f to conditional 85 let ind = ind + shiftwidth() 86 let f = 0 87 end 88 end 89 end 90 91 " remove members [a] of [b]:[c]... (inicio remainds valid) 92 let line = substitute(line, '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 93 while 1 94 " search for the next interesting element 95 let inicio=matchend(line, '\c\<if\|endif\|[()=;]', inicio) 96 if inicio < 0 97 break 98 end 99 100 let c = line[inicio-1] 101 " 'expr(...)' containing the formula 102 if strpart(line, inicio-5, 5) ==? 'expr(' 103 let ind = 0 104 let f = 1 105 elseif c == ')' || c== ';' || strpart(line, inicio-5, 5) ==? 'endif' 106 let ind = ind - shiftwidth() 107 elseif c == '(' || c ==? 'f' " '(' or 'if' 108 let ind = ind + shiftwidth() 109 else " c == '=' 110 " if it is an assignment increase indent 111 if f == -1 " we don't know yet, find out 112 let f = CdlAsignment(lnum, strpart(line, 0, inicio)) 113 end 114 if f == 1 " formula increase it 115 let ind = ind + shiftwidth() 116 end 117 end 118 endw 119 120 " CURRENT LINE, if it starts with a closing element, decrease indent 121 " or if it starts with '=' (assignment), increase indent 122 if match(thisline, '^\c\s*\(else\|then\|endif\|[);]\)') >= 0 123 let ind = ind - shiftwidth() 124 elseif match(thisline, '^\s*=') >= 0 125 if f == -1 " we don't know yet if is an assignment, find out 126 let f = CdlAsignment(lnum, "") 127 end 128 if f == 1 " formula increase it 129 let ind = ind + shiftwidth() 130 end 131 end 132 133 return ind 134endfun 135