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Rev | Author | Line No. | Line |
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733 | daniel-mar | 1 | unit OIDFILE; |
2 | |||
3 | (************************************************) |
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4 | (* OIDFILE.PAS *) |
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5 | (* Author: Daniel Marschall *) |
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734 | daniel-mar | 6 | (* Revision: 2022-02-14 *) |
733 | daniel-mar | 7 | (* License: Apache 2.0 *) |
8 | (* This file contains: *) |
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9 | (* - Functions to handle an OID ASCII format *) |
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10 | (************************************************) |
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11 | |||
12 | interface |
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13 | |||
14 | uses |
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15 | StrList; |
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16 | |||
17 | type |
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18 | POID = ^TOID; |
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19 | TOID = record |
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20 | FileId: string; |
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21 | DotNotation: string; |
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22 | ASNIds: PStringList; |
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23 | Description: string; |
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734 | daniel-mar | 24 | SubIds: PStringList; (* first 8 chars are FileId, followed by Dot-Notation *) |
25 | Parent: string; (* First 8 chars are FileId, followed by Dot-Notation *) |
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733 | daniel-mar | 26 | end; |
27 | |||
735 | daniel-mar | 28 | procedure CreateOidDef(var oid: POid); |
733 | daniel-mar | 29 | procedure FreeOidDef(oid: POid); |
734 | daniel-mar | 30 | procedure ClearOidDef(oid: POid); |
733 | daniel-mar | 31 | procedure WriteOidFile(filename: string; oid: POid); |
32 | procedure ReadOidFile(filename: string; oid: POid); |
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33 | |||
735 | daniel-mar | 34 | (* For the fields "SubIds" and "Parent" *) |
35 | function FileIdPart(s: string): string; |
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36 | function DotNotationPart(s: string): string; |
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37 | |||
733 | daniel-mar | 38 | implementation |
39 | |||
40 | uses |
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739 | daniel-mar | 41 | VtsFuncs, OidUtils; |
733 | daniel-mar | 42 | |
43 | const |
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44 | WANT_VERS = '2022'; |
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45 | |||
735 | daniel-mar | 46 | procedure CreateOidDef(var oid: POid); |
734 | daniel-mar | 47 | begin |
735 | daniel-mar | 48 | GetMem(oid, SizeOf(TOID)); |
734 | daniel-mar | 49 | oid^.FileId := ''; |
50 | oid^.DotNotation := ''; |
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51 | oid^.Description := ''; |
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52 | oid^.Parent := ''; |
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735 | daniel-mar | 53 | CreateList(oid^.ASNIds); |
54 | CreateList(oid^.SubIds); |
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734 | daniel-mar | 55 | end; |
56 | |||
733 | daniel-mar | 57 | procedure FreeOidDef(oid: POid); |
58 | begin |
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59 | FreeList(oid^.ASNIds); |
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60 | FreeList(oid^.SubIds); |
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735 | daniel-mar | 61 | FreeMem(oid, SizeOf(TOID)); |
733 | daniel-mar | 62 | end; |
63 | |||
734 | daniel-mar | 64 | procedure ClearOidDef(oid: POid); |
65 | begin |
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66 | FreeOidDef(oid); |
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735 | daniel-mar | 67 | CreateOidDef(oid); |
734 | daniel-mar | 68 | end; |
69 | |||
739 | daniel-mar | 70 | procedure BubbleSortSubIds(oid: POid); |
71 | var |
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72 | n, i: integer; |
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73 | a, b: string; |
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74 | begin |
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75 | n := ListCount(oid^.SubIds); |
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76 | while n>1 do |
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77 | begin |
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78 | i := 0; |
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79 | while i<n-1 do |
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80 | begin |
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81 | a := DotNotationPart(ListGetElement(oid^.SubIds, i)); |
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82 | b := DotNotationPart(ListGetElement(oid^.SubIds, i+1)); |
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83 | if CompareOID(a, b) > 0 then |
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84 | begin |
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85 | ListSwapElement(oid^.SubIds, i, i+1); |
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86 | end; |
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87 | Inc(i); |
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88 | end; |
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89 | Dec(n); |
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90 | end; |
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91 | end; |
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92 | |||
733 | daniel-mar | 93 | procedure WriteOidFile(filename: string; oid: POid); |
94 | var |
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95 | f: Text; |
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96 | i: integer; |
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97 | lines: PStringList; |
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98 | sTmp: string; |
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99 | desc: string; |
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100 | begin |
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101 | Assign(f, filename); |
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102 | Rewrite(f); |
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103 | |||
104 | WriteLn(f,'VERS' + WANT_VERS); |
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105 | |||
106 | WriteLn(f,'SELF' + oid^.FileId + oid^.DotNotation); |
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107 | |||
108 | WriteLn(f,'SUPR' + oid^.Parent); |
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109 | |||
739 | daniel-mar | 110 | (* Sort sub IDs *) |
111 | BubbleSortSubIds(oid); |
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733 | daniel-mar | 112 | for i := 0 to ListCount(oid^.SubIds)-1 do |
113 | begin |
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114 | sTmp := ListGetElement(oid^.SubIds, i); |
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115 | WriteLn(f, 'CHLD' + sTmp); |
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116 | end; |
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117 | |||
118 | for i := 0 to ListCount(oid^.AsnIds)-1 do |
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119 | begin |
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120 | sTmp := ListGetElement(oid^.AsnIds, i); |
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121 | WriteLn(f, 'ASN1' + sTmp); |
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122 | end; |
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123 | |||
124 | desc := Trim(oid^.Description); |
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125 | if desc <> '' then |
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126 | begin |
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735 | daniel-mar | 127 | CreateList(lines); |
733 | daniel-mar | 128 | SplitStrToList(desc, lines, #13#10); |
129 | for i := 0 to ListCount(lines)-1 do |
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130 | begin |
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131 | sTmp := ListGetElement(lines, i); |
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132 | WriteLn(f, 'DESC' + sTmp); |
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133 | end; |
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134 | FreeList(lines); |
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135 | end; |
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136 | |||
137 | Close(f); |
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138 | end; |
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139 | |||
140 | procedure ReadOidFile(filename: string; oid: POid); |
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141 | var |
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142 | f: Text; |
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143 | line, cmd: string; |
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144 | version: string; |
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145 | begin |
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734 | daniel-mar | 146 | ClearOidDef(oid); |
733 | daniel-mar | 147 | version := ''; |
148 | |||
149 | Assign(f, filename); |
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150 | Reset(f); |
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151 | while not EOF(f) do |
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152 | begin |
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153 | ReadLn(f, line); |
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154 | cmd := Copy(line,1,4); |
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155 | Delete(line,1,4); |
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156 | |||
157 | if cmd = 'VERS' then |
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158 | begin |
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159 | version := line; |
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160 | end; |
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161 | |||
162 | if cmd = 'SELF' then |
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163 | begin |
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164 | oid^.FileId := Copy(line,1,8); |
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165 | Delete(line,1,8); |
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166 | oid^.DotNotation := line; |
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167 | end; |
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168 | |||
169 | if cmd = 'SUPR' then |
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170 | begin |
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171 | oid^.Parent := line; |
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172 | end; |
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173 | |||
174 | if cmd = 'CHLD' then |
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175 | begin |
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176 | ListAppend(oid^.SubIds, line); |
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177 | end; |
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178 | |||
179 | if cmd = 'ASN1' then |
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180 | begin |
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181 | ListAppend(oid^.ASNIds, line); |
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182 | end; |
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183 | |||
184 | if cmd = 'DESC' then |
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185 | begin |
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186 | oid^.Description := oid^.Description + line + #13#10; |
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187 | end; |
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188 | end; |
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739 | daniel-mar | 189 | |
190 | (* Sort sub IDs *) |
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191 | BubbleSortSubIds(oid); |
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733 | daniel-mar | 192 | |
193 | (* Remove last CRLF *) |
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194 | oid^.Description := Copy(oid^.Description, 1, Length(oid^.Description)-Length(#13#10)); |
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195 | |||
196 | (* Check if something is not correct *) |
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197 | if (version <> WANT_VERS) or (oid^.FileId = '') then |
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198 | begin |
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199 | (* Invalidate everything *) |
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734 | daniel-mar | 200 | ClearOidDef(oid); |
733 | daniel-mar | 201 | end; |
202 | |||
203 | Close(f); |
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204 | end; |
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205 | |||
735 | daniel-mar | 206 | function FileIdPart(s: string): string; |
207 | begin |
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208 | FileIdPart := Copy(s,1,8); |
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209 | end; |
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210 | |||
211 | function DotNotationPart(s: string): string; |
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212 | begin |
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213 | Delete(s,1,8); |
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214 | DotNotationPart := s; |
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215 | end; |
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216 | |||
733 | daniel-mar | 217 | end. |