cdl.vim (4366B)
1 " Description: Comshare Dimension Definition Language (CDL) 2 " Maintainer: Raul Segura Acevedo <raulseguraaceved@netscape.net> (Invalid email address) 3 " Doug Kearns <dougkearns@gmail.com> 4 " Last Change: 2022 Apr 06 5 6 if exists("b:did_indent") 7 "finish 8 endif 9 let b:did_indent = 1 10 11 setlocal indentexpr=CdlGetIndent(v:lnum) 12 setlocal indentkeys& 13 setlocal indentkeys+==~else,=~endif,=~then,;,),= 14 15 let b:undo_indent = "setl inde< indk<" 16 17 " Only define the function once. 18 if exists("*CdlGetIndent") 19 "finish 20 endif 21 22 " find out if an "...=..." expression is an assignment (or a conditional) 23 " it scans 'line' first, and then the previous lines 24 fun! CdlAssignment(lnum, line) 25 let f = -1 26 let lnum = a:lnum 27 let line = a:line 28 while lnum > 0 && f == -1 29 " line without members [a] of [b]:[c]... 30 let inicio = 0 31 while 1 32 " keywords that help to decide 33 let inicio = matchend(line, '\c\<\(expr\|\a*if\|and\|or\|not\|else\|then\|memberis\|\k\+of\)\>\|[<>;]', inicio) 34 if inicio < 0 35 break 36 endif 37 " it's formula if there's a ';', 'elsE', 'theN', 'enDif' or 'expr' 38 " conditional if there's a '<', '>', 'elseif', 'if', 'and', 'or', 'not', 39 " 'memberis', 'childrenof' and other \k\+of functions 40 let f = line[inicio-1] =~? '[en;]' || strpart(line, inicio-4, 4) =~? 'ndif\|expr' 41 endw 42 let lnum = prevnonblank(lnum-1) 43 let line = substitute(getline(lnum), '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 44 endw 45 " if we hit the start of the file then f = -1, return 1 (formula) 46 return f != 0 47 endf 48 49 fun! CdlGetIndent(lnum) 50 let thisline = getline(a:lnum) 51 if match(thisline, '^\s*\(\k\+\|\[[^]]*]\)\s*\(,\|;\s*$\)') >= 0 52 " it's an attributes line 53 return shiftwidth() 54 elseif match(thisline, '^\c\s*\([{}]\|\/[*/]\|dimension\|schedule\|group\|hierarchy\|class\)') >= 0 55 " it's a header or '{' or '}' or a comment 56 return 0 57 end 58 59 let lnum = prevnonblank(a:lnum-1) 60 " Hit the start of the file, use zero indent. 61 if lnum == 0 62 return 0 63 endif 64 65 " PREVIOUS LINE 66 let ind = indent(lnum) 67 let line = getline(lnum) 68 69 " Whether a '=' is a conditional or an assignment. -1 means we don't know 70 " yet. 71 " One 'closing' element at the beginning of the line has already reduced the 72 " indent, but 'else', 'elseif' & 'then' increment it for the next line. 73 " '=' at the beginning already has the right indent (increased for 74 " asignments). 75 let f = -1 76 let inicio = matchend(line, '^\c\s*\(else\a*\|then\|endif\|/[*/]\|[);={]\)') 77 if inicio > 0 78 let c = line[inicio-1] 79 " ')' and '=' don't change indent and are useless to set 'f' 80 if c == '{' 81 return shiftwidth() 82 elseif c != ')' && c != '=' 83 let f = 1 " all but 'elseif' are followed by a formula 84 if c ==? 'n' || c ==? 'e' " 'then', 'else' 85 let ind = ind + shiftwidth() 86 elseif strpart(line, inicio-6, 6) ==? 'elseif' " elseif, set f to conditional 87 let ind = ind + shiftwidth() 88 let f = 0 89 end 90 end 91 end 92 93 " remove members [a] of [b]:[c]... (inicio remains valid) 94 let line = substitute(line, '\c\(\[[^]]*]\(\s*of\s*\|:\)*\)\+', ' ', 'g') 95 while 1 96 " search for the next interesting element 97 let inicio=matchend(line, '\c\<if\|endif\|[()=;]', inicio) 98 if inicio < 0 99 break 100 end 101 102 let c = line[inicio-1] 103 " 'expr(...)' containing the formula 104 if strpart(line, inicio-5, 5) ==? 'expr(' 105 let ind = 0 106 let f = 1 107 elseif c == ')' || c== ';' || strpart(line, inicio-5, 5) ==? 'endif' 108 let ind = ind - shiftwidth() 109 elseif c == '(' || c ==? 'f' " '(' or 'if' 110 let ind = ind + shiftwidth() 111 else " c == '=' 112 " if it is an assignment increase indent 113 if f == -1 " we don't know yet, find out 114 let f = CdlAssignment(lnum, strpart(line, 0, inicio)) 115 end 116 if f == 1 " formula increase it 117 let ind = ind + shiftwidth() 118 end 119 end 120 endw 121 122 " CURRENT LINE, if it starts with a closing element, decrease indent 123 " or if it starts with '=' (assignment), increase indent 124 if match(thisline, '^\c\s*\(else\|then\|endif\|[);]\)') >= 0 125 let ind = ind - shiftwidth() 126 elseif match(thisline, '^\s*=') >= 0 127 if f == -1 " we don't know yet if is an assignment, find out 128 let f = CdlAssignment(lnum, "") 129 end 130 if f == 1 " formula increase it 131 let ind = ind + shiftwidth() 132 end 133 end 134 135 return ind 136 endfun