| 3eb9473e |
1 | /*++\r |
| 2 | \r |
| 3 | Copyright (c) 2004, Intel Corporation \r |
| 4 | All rights reserved. This program and the accompanying materials \r |
| 5 | are licensed and made available under the terms and conditions of the BSD License \r |
| 6 | which accompanies this distribution. The full text of the license may be found at \r |
| 7 | http://opensource.org/licenses/bsd-license.php \r |
| 8 | \r |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| 11 | \r |
| 12 | Module Name:\r |
| 13 | \r |
| 14 | SimpleFileParsing.c \r |
| 15 | \r |
| 16 | Abstract:\r |
| 17 | \r |
| 18 | Generic but simple file parsing routines.\r |
| 19 | \r |
| 20 | --*/\r |
| 21 | \r |
| 22 | #include <stdio.h>\r |
| 23 | #include <string.h>\r |
| 24 | #include <stdlib.h>\r |
| 25 | #include <ctype.h>\r |
| 26 | \r |
| 27 | #include "Tiano.h"\r |
| 28 | #include "EfiUtilityMsgs.h"\r |
| 29 | #include "SimpleFileParsing.h"\r |
| 30 | \r |
| 31 | #define MAX_PATH 255\r |
| 32 | //\r |
| 33 | // just in case we get in an endless loop.\r |
| 34 | //\r |
| 35 | #define MAX_NEST_DEPTH 20\r |
| 36 | //\r |
| 37 | // number of wchars\r |
| 38 | //\r |
| 39 | #define MAX_STRING_IDENTIFIER_NAME 100\r |
| 40 | \r |
| 41 | #define MAX_LINE_LEN 400\r |
| 42 | \r |
| 43 | #define T_CHAR_SPACE ' '\r |
| 44 | #define T_CHAR_NULL 0\r |
| 45 | #define T_CHAR_CR '\r'\r |
| 46 | #define T_CHAR_TAB '\t'\r |
| 47 | #define T_CHAR_LF '\n'\r |
| 48 | #define T_CHAR_SLASH '/'\r |
| 49 | #define T_CHAR_BACKSLASH '\\'\r |
| 50 | #define T_CHAR_DOUBLE_QUOTE '"'\r |
| 51 | #define T_CHAR_LC_X 'x'\r |
| 52 | #define T_CHAR_0 '0'\r |
| 53 | #define T_CHAR_STAR '*'\r |
| 54 | \r |
| 55 | //\r |
| 56 | // We keep a linked list of these for the source files we process\r |
| 57 | //\r |
| 58 | typedef struct _SOURCE_FILE {\r |
| 59 | FILE *Fptr;\r |
| 60 | T_CHAR *FileBuffer;\r |
| 61 | T_CHAR *FileBufferPtr;\r |
| 62 | unsigned int FileSize;\r |
| 63 | char FileName[MAX_PATH];\r |
| 64 | unsigned int LineNum;\r |
| 65 | BOOLEAN EndOfFile;\r |
| 66 | BOOLEAN SkipToHash;\r |
| 67 | struct _SOURCE_FILE *Previous;\r |
| 68 | struct _SOURCE_FILE *Next;\r |
| 69 | T_CHAR ControlCharacter;\r |
| 70 | } SOURCE_FILE;\r |
| 71 | \r |
| 72 | typedef struct {\r |
| 73 | T_CHAR *FileBufferPtr;\r |
| 74 | } FILE_POSITION;\r |
| 75 | \r |
| 76 | //\r |
| 77 | // Keep all our module globals in this structure\r |
| 78 | //\r |
| 79 | static struct {\r |
| 80 | SOURCE_FILE SourceFile;\r |
| 81 | BOOLEAN VerboseFile;\r |
| 82 | BOOLEAN VerboseToken;\r |
| 83 | } mGlobals;\r |
| 84 | \r |
| 85 | static\r |
| 86 | unsigned int\r |
| 87 | t_strcmp (\r |
| 88 | T_CHAR *Buffer,\r |
| 89 | T_CHAR *Str\r |
| 90 | );\r |
| 91 | \r |
| 92 | static\r |
| 93 | unsigned int\r |
| 94 | t_strncmp (\r |
| 95 | T_CHAR *Str1,\r |
| 96 | T_CHAR *Str2,\r |
| 97 | int Len\r |
| 98 | );\r |
| 99 | \r |
| 100 | static\r |
| 101 | unsigned int\r |
| 102 | t_strlen (\r |
| 103 | T_CHAR *Str\r |
| 104 | );\r |
| 105 | \r |
| 106 | static\r |
| 107 | void\r |
| 108 | RewindFile (\r |
| 109 | SOURCE_FILE *SourceFile\r |
| 110 | );\r |
| 111 | \r |
| 112 | static\r |
| 113 | BOOLEAN\r |
| 114 | IsWhiteSpace (\r |
| 115 | SOURCE_FILE *SourceFile\r |
| 116 | );\r |
| 117 | \r |
| 118 | static\r |
| 119 | unsigned int\r |
| 120 | SkipWhiteSpace (\r |
| 121 | SOURCE_FILE *SourceFile\r |
| 122 | );\r |
| 123 | \r |
| 124 | static\r |
| 125 | BOOLEAN\r |
| 126 | EndOfFile (\r |
| 127 | SOURCE_FILE *SourceFile\r |
| 128 | );\r |
| 129 | \r |
| 130 | static\r |
| 131 | void\r |
| 132 | PreprocessFile (\r |
| 133 | SOURCE_FILE *SourceFile\r |
| 134 | );\r |
| 135 | \r |
| 136 | static\r |
| 137 | T_CHAR *\r |
| 138 | t_strcpy (\r |
| 139 | T_CHAR *Dest,\r |
| 140 | T_CHAR *Src\r |
| 141 | );\r |
| 142 | \r |
| 143 | static\r |
| 144 | STATUS\r |
| 145 | ProcessIncludeFile (\r |
| 146 | SOURCE_FILE *SourceFile,\r |
| 147 | SOURCE_FILE *ParentSourceFile\r |
| 148 | );\r |
| 149 | \r |
| 150 | static\r |
| 151 | STATUS\r |
| 152 | ParseFile (\r |
| 153 | SOURCE_FILE *SourceFile\r |
| 154 | );\r |
| 155 | \r |
| 156 | static\r |
| 157 | FILE *\r |
| 158 | FindFile (\r |
| 159 | char *FileName,\r |
| 160 | char *FoundFileName,\r |
| 161 | unsigned int FoundFileNameLen\r |
| 162 | );\r |
| 163 | \r |
| 164 | static\r |
| 165 | STATUS\r |
| 166 | ProcessFile (\r |
| 167 | SOURCE_FILE *SourceFile\r |
| 168 | );\r |
| 169 | \r |
| 170 | static\r |
| 171 | STATUS\r |
| 172 | GetFilePosition (\r |
| 173 | FILE_POSITION *Fpos\r |
| 174 | );\r |
| 175 | \r |
| 176 | static\r |
| 177 | STATUS\r |
| 178 | SetFilePosition (\r |
| 179 | FILE_POSITION *Fpos\r |
| 180 | );\r |
| 181 | \r |
| 182 | STATUS\r |
| 183 | SFPInit (\r |
| 184 | VOID\r |
| 185 | )\r |
| 186 | /*++\r |
| 187 | \r |
| 188 | Routine Description:\r |
| 189 | \r |
| 190 | Arguments:\r |
| 191 | None.\r |
| 192 | \r |
| 193 | Returns:\r |
| 194 | STATUS_SUCCESS always\r |
| 195 | \r |
| 196 | --*/\r |
| 197 | {\r |
| 198 | memset ((void *) &mGlobals, 0, sizeof (mGlobals));\r |
| 199 | return STATUS_SUCCESS;\r |
| 200 | }\r |
| 201 | \r |
| 202 | unsigned\r |
| 203 | int\r |
| 204 | SFPGetLineNumber (\r |
| 205 | VOID\r |
| 206 | )\r |
| 207 | /*++\r |
| 208 | \r |
| 209 | Routine Description:\r |
| 210 | Return the line number of the file we're parsing. Used\r |
| 211 | for error reporting purposes.\r |
| 212 | \r |
| 213 | Arguments:\r |
| 214 | None.\r |
| 215 | \r |
| 216 | Returns:\r |
| 217 | The line number, or 0 if no file is being processed\r |
| 218 | \r |
| 219 | --*/\r |
| 220 | {\r |
| 221 | return mGlobals.SourceFile.LineNum;\r |
| 222 | }\r |
| 223 | \r |
| 224 | T_CHAR *\r |
| 225 | SFPGetFileName (\r |
| 226 | VOID\r |
| 227 | )\r |
| 228 | /*++\r |
| 229 | \r |
| 230 | Routine Description:\r |
| 231 | Return the name of the file we're parsing. Used\r |
| 232 | for error reporting purposes.\r |
| 233 | \r |
| 234 | Arguments:\r |
| 235 | None.\r |
| 236 | \r |
| 237 | Returns:\r |
| 238 | A pointer to the file name. Null if no file is being\r |
| 239 | processed.\r |
| 240 | \r |
| 241 | --*/\r |
| 242 | {\r |
| 243 | if (mGlobals.SourceFile.FileName[0]) {\r |
| 244 | return mGlobals.SourceFile.FileName;\r |
| 245 | }\r |
| 246 | \r |
| 247 | return NULL;\r |
| 248 | }\r |
| 249 | \r |
| 250 | STATUS\r |
| 251 | SFPOpenFile (\r |
| 252 | char *FileName\r |
| 253 | )\r |
| 254 | /*++\r |
| 255 | \r |
| 256 | Routine Description:\r |
| 257 | Open a file for parsing.\r |
| 258 | \r |
| 259 | Arguments:\r |
| 260 | FileName - name of the file to parse\r |
| 261 | \r |
| 262 | Returns:\r |
| 263 | \r |
| 264 | \r |
| 265 | --*/\r |
| 266 | {\r |
| 267 | STATUS Status;\r |
| 268 | t_strcpy (mGlobals.SourceFile.FileName, FileName);\r |
| 269 | Status = ProcessIncludeFile (&mGlobals.SourceFile, NULL);\r |
| 270 | return Status;\r |
| 271 | }\r |
| 272 | \r |
| 273 | BOOLEAN\r |
| 274 | SFPIsToken (\r |
| 275 | T_CHAR *Str\r |
| 276 | )\r |
| 277 | /*++\r |
| 278 | \r |
| 279 | Routine Description:\r |
| 280 | Check to see if the specified token is found at\r |
| 281 | the current position in the input file.\r |
| 282 | \r |
| 283 | Arguments:\r |
| 284 | Str - the token to look for\r |
| 285 | \r |
| 286 | Returns:\r |
| 287 | TRUE - the token is next\r |
| 288 | FALSE - the token is not next\r |
| 289 | \r |
| 290 | Notes:\r |
| 291 | We do a simple string comparison on this function. It is\r |
| 292 | the responsibility of the caller to ensure that the token\r |
| 293 | is not a subset of some other token.\r |
| 294 | \r |
| 295 | The file pointer is advanced past the token in the input file.\r |
| 296 | \r |
| 297 | --*/\r |
| 298 | {\r |
| 299 | unsigned int Len;\r |
| 300 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 301 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 302 | return FALSE;\r |
| 303 | }\r |
| 304 | \r |
| 305 | if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {\r |
| 306 | mGlobals.SourceFile.FileBufferPtr += Len;\r |
| 307 | if (mGlobals.VerboseToken) {\r |
| 308 | printf ("Token: '%s'\n", Str);\r |
| 309 | }\r |
| 310 | \r |
| 311 | return TRUE;\r |
| 312 | }\r |
| 313 | \r |
| 314 | return FALSE;\r |
| 315 | }\r |
| 316 | \r |
| 317 | BOOLEAN\r |
| 318 | SFPIsKeyword (\r |
| 319 | T_CHAR *Str\r |
| 320 | )\r |
| 321 | /*++\r |
| 322 | \r |
| 323 | Routine Description:\r |
| 324 | Check to see if the specified keyword is found at\r |
| 325 | the current position in the input file.\r |
| 326 | \r |
| 327 | Arguments:\r |
| 328 | Str - keyword to look for\r |
| 329 | \r |
| 330 | Returns:\r |
| 331 | TRUE - the keyword is next\r |
| 332 | FALSE - the keyword is not next\r |
| 333 | \r |
| 334 | Notes:\r |
| 335 | A keyword is defined as a "special" string that has a non-alphanumeric\r |
| 336 | character following it.\r |
| 337 | \r |
| 338 | --*/\r |
| 339 | {\r |
| 340 | unsigned int Len;\r |
| 341 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 342 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 343 | return FALSE;\r |
| 344 | }\r |
| 345 | \r |
| 346 | if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {\r |
| 347 | if (isalnum (mGlobals.SourceFile.FileBufferPtr[Len])) {\r |
| 348 | return FALSE;\r |
| 349 | }\r |
| 350 | \r |
| 351 | mGlobals.SourceFile.FileBufferPtr += Len;\r |
| 352 | if (mGlobals.VerboseToken) {\r |
| 353 | printf ("Token: '%s'\n", Str);\r |
| 354 | }\r |
| 355 | \r |
| 356 | return TRUE;\r |
| 357 | }\r |
| 358 | \r |
| 359 | return FALSE;\r |
| 360 | }\r |
| 361 | \r |
| 362 | BOOLEAN\r |
| 363 | SFPGetNextToken (\r |
| 364 | T_CHAR *Str,\r |
| 365 | unsigned int Len\r |
| 366 | )\r |
| 367 | /*++\r |
| 368 | \r |
| 369 | Routine Description:\r |
| 370 | Get the next token from the input stream. \r |
| 371 | \r |
| 372 | Arguments:\r |
| 373 | Str - pointer to a copy of the next token\r |
| 374 | Len - size of buffer pointed to by Str\r |
| 375 | \r |
| 376 | Returns:\r |
| 377 | TRUE - next token successfully returned\r |
| 378 | FALSE - otherwise\r |
| 379 | \r |
| 380 | Notes:\r |
| 381 | Preceeding white space is ignored. \r |
| 382 | The parser's buffer pointer is advanced past the end of the\r |
| 383 | token.\r |
| 384 | \r |
| 385 | --*/\r |
| 386 | {\r |
| 387 | unsigned int Index;\r |
| 388 | T_CHAR TempChar;\r |
| 389 | \r |
| 390 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 391 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 392 | return FALSE;\r |
| 393 | }\r |
| 394 | //\r |
| 395 | // Have to have enough string for at least one char and a null-terminator\r |
| 396 | //\r |
| 397 | if (Len < 2) {\r |
| 398 | return FALSE;\r |
| 399 | }\r |
| 400 | //\r |
| 401 | // Look at the first character. If it's an identifier, then treat it\r |
| 402 | // as such\r |
| 403 | //\r |
| 404 | TempChar = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 405 | if (((TempChar >= 'a') && (TempChar <= 'z')) || ((TempChar >= 'A') && (TempChar <= 'Z')) || (TempChar == '_')) {\r |
| 406 | Str[0] = TempChar;\r |
| 407 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 408 | Index = 1;\r |
| 409 | while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {\r |
| 410 | TempChar = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 411 | if (((TempChar >= 'a') && (TempChar <= 'z')) ||\r |
| 412 | ((TempChar >= 'A') && (TempChar <= 'Z')) ||\r |
| 413 | ((TempChar >= '0') && (TempChar <= '9')) ||\r |
| 414 | (TempChar == '_')\r |
| 415 | ) {\r |
| 416 | Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 417 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 418 | Index++;\r |
| 419 | } else {\r |
| 420 | //\r |
| 421 | // Invalid character for symbol name, so break out\r |
| 422 | //\r |
| 423 | break;\r |
| 424 | }\r |
| 425 | }\r |
| 426 | //\r |
| 427 | // Null terminate and return success\r |
| 428 | //\r |
| 429 | Str[Index] = 0;\r |
| 430 | return TRUE;\r |
| 431 | } else if ((TempChar == ')') || (TempChar == '(') || (TempChar == '*')) {\r |
| 432 | Str[0] = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 433 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 434 | Str[1] = 0;\r |
| 435 | return TRUE;\r |
| 436 | } else {\r |
| 437 | //\r |
| 438 | // Everything else is white-space (or EOF) separated\r |
| 439 | //\r |
| 440 | Index = 0;\r |
| 441 | while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {\r |
| 442 | if (IsWhiteSpace (&mGlobals.SourceFile)) {\r |
| 443 | if (Index > 0) {\r |
| 444 | Str[Index] = 0;\r |
| 445 | return TRUE;\r |
| 446 | }\r |
| 447 | \r |
| 448 | return FALSE;\r |
| 449 | } else {\r |
| 450 | Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 451 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 452 | Index++;\r |
| 453 | }\r |
| 454 | }\r |
| 455 | //\r |
| 456 | // See if we just ran out of file contents, but did find a token\r |
| 457 | //\r |
| 458 | if ((Index > 0) && EndOfFile (&mGlobals.SourceFile)) {\r |
| 459 | Str[Index] = 0;\r |
| 460 | return TRUE;\r |
| 461 | }\r |
| 462 | }\r |
| 463 | \r |
| 464 | return FALSE;\r |
| 465 | }\r |
| 466 | \r |
| 467 | BOOLEAN\r |
| 468 | SFPGetGuidToken (\r |
| 469 | T_CHAR *Str,\r |
| 470 | UINT32 Len\r |
| 471 | )\r |
| 472 | /*++\r |
| 473 | \r |
| 474 | Routine Description:\r |
| 475 | Parse a GUID from the input stream. Stop when you discover white space.\r |
| 476 | \r |
| 477 | Arguments:\r |
| 478 | Str - pointer to a copy of the next token\r |
| 479 | Len - size of buffer pointed to by Str\r |
| 480 | \r |
| 481 | Returns:\r |
| 482 | TRUE - GUID string returned successfully\r |
| 483 | FALSE - otherwise\r |
| 484 | \r |
| 485 | --*/\r |
| 486 | {\r |
| 487 | UINT32 Index;\r |
| 488 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 489 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 490 | return FALSE;\r |
| 491 | }\r |
| 492 | \r |
| 493 | Index = 0;\r |
| 494 | while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {\r |
| 495 | if (IsWhiteSpace (&mGlobals.SourceFile)) {\r |
| 496 | if (Index > 0) {\r |
| 497 | Str[Index] = 0;\r |
| 498 | return TRUE;\r |
| 499 | }\r |
| 500 | \r |
| 501 | return FALSE;\r |
| 502 | } else {\r |
| 503 | Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 504 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 505 | Index++;\r |
| 506 | }\r |
| 507 | }\r |
| 508 | \r |
| 509 | return FALSE;\r |
| 510 | }\r |
| 511 | \r |
| 512 | BOOLEAN\r |
| 513 | SFPSkipToToken (\r |
| 514 | T_CHAR *Str\r |
| 515 | )\r |
| 516 | {\r |
| 517 | unsigned int Len;\r |
| 518 | T_CHAR *SavePos;\r |
| 519 | Len = t_strlen (Str);\r |
| 520 | SavePos = mGlobals.SourceFile.FileBufferPtr;\r |
| 521 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 522 | while (!EndOfFile (&mGlobals.SourceFile)) {\r |
| 523 | if (t_strncmp (Str, mGlobals.SourceFile.FileBufferPtr, Len) == 0) {\r |
| 524 | mGlobals.SourceFile.FileBufferPtr += Len;\r |
| 525 | return TRUE;\r |
| 526 | }\r |
| 527 | \r |
| 528 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 529 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 530 | }\r |
| 531 | \r |
| 532 | mGlobals.SourceFile.FileBufferPtr = SavePos;\r |
| 533 | return FALSE;\r |
| 534 | }\r |
| 535 | \r |
| 536 | BOOLEAN\r |
| 537 | SFPGetNumber (\r |
| 538 | unsigned int *Value\r |
| 539 | )\r |
| 540 | /*++\r |
| 541 | \r |
| 542 | Routine Description:\r |
| 543 | Check the token at the current file position for a numeric value.\r |
| 544 | May be either decimal or hex.\r |
| 545 | \r |
| 546 | Arguments:\r |
| 547 | Value - pointer where to store the value\r |
| 548 | \r |
| 549 | Returns:\r |
| 550 | FALSE - current token is not a number\r |
| 551 | TRUE - current token is a number\r |
| 552 | \r |
| 553 | --*/\r |
| 554 | {\r |
| 555 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 556 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 557 | return FALSE;\r |
| 558 | }\r |
| 559 | \r |
| 560 | if (isdigit (mGlobals.SourceFile.FileBufferPtr[0])) {\r |
| 561 | //\r |
| 562 | // Check for hex value\r |
| 563 | //\r |
| 564 | if ((mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_0) && (mGlobals.SourceFile.FileBufferPtr[1] == T_CHAR_LC_X)) {\r |
| 565 | if (!isxdigit (mGlobals.SourceFile.FileBufferPtr[2])) {\r |
| 566 | return FALSE;\r |
| 567 | }\r |
| 568 | \r |
| 569 | mGlobals.SourceFile.FileBufferPtr += 2;\r |
| 570 | sscanf (mGlobals.SourceFile.FileBufferPtr, "%x", Value);\r |
| 571 | while (isxdigit (mGlobals.SourceFile.FileBufferPtr[0])) {\r |
| 572 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 573 | }\r |
| 574 | \r |
| 575 | return TRUE;\r |
| 576 | } else {\r |
| 577 | *Value = atoi (mGlobals.SourceFile.FileBufferPtr);\r |
| 578 | while (isdigit (mGlobals.SourceFile.FileBufferPtr[0])) {\r |
| 579 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 580 | }\r |
| 581 | \r |
| 582 | return TRUE;\r |
| 583 | }\r |
| 584 | } else {\r |
| 585 | return FALSE;\r |
| 586 | }\r |
| 587 | }\r |
| 588 | \r |
| 589 | STATUS\r |
| 590 | SFPCloseFile (\r |
| 591 | VOID\r |
| 592 | )\r |
| 593 | /*++\r |
| 594 | \r |
| 595 | Routine Description:\r |
| 596 | Close the file being parsed.\r |
| 597 | \r |
| 598 | Arguments:\r |
| 599 | None.\r |
| 600 | \r |
| 601 | Returns:\r |
| 602 | STATUS_SUCCESS - the file was closed \r |
| 603 | STATUS_ERROR - no file is currently open\r |
| 604 | \r |
| 605 | --*/\r |
| 606 | {\r |
| 607 | if (mGlobals.SourceFile.FileBuffer != NULL) {\r |
| 608 | free (mGlobals.SourceFile.FileBuffer);\r |
| 609 | memset (&mGlobals.SourceFile, 0, sizeof (mGlobals.SourceFile));\r |
| 610 | return STATUS_SUCCESS;\r |
| 611 | }\r |
| 612 | \r |
| 613 | return STATUS_ERROR;\r |
| 614 | }\r |
| 615 | \r |
| 616 | static\r |
| 617 | STATUS\r |
| 618 | ProcessIncludeFile (\r |
| 619 | SOURCE_FILE *SourceFile,\r |
| 620 | SOURCE_FILE *ParentSourceFile\r |
| 621 | )\r |
| 622 | /*++\r |
| 623 | \r |
| 624 | Routine Description:\r |
| 625 | \r |
| 626 | Given a source file, open the file and parse it\r |
| 627 | \r |
| 628 | Arguments:\r |
| 629 | \r |
| 630 | SourceFile - name of file to parse\r |
| 631 | ParentSourceFile - for error reporting purposes, the file that #included SourceFile.\r |
| 632 | \r |
| 633 | Returns:\r |
| 634 | \r |
| 635 | Standard status.\r |
| 636 | \r |
| 637 | --*/\r |
| 638 | {\r |
| 639 | static unsigned int NestDepth = 0;\r |
| 640 | char FoundFileName[MAX_PATH];\r |
| 641 | STATUS Status;\r |
| 642 | \r |
| 643 | Status = STATUS_SUCCESS;\r |
| 644 | NestDepth++;\r |
| 645 | //\r |
| 646 | // Print the file being processed. Indent so you can tell the include nesting\r |
| 647 | // depth.\r |
| 648 | //\r |
| 649 | if (mGlobals.VerboseFile) {\r |
| 650 | fprintf (stdout, "%*cProcessing file '%s'\n", NestDepth * 2, ' ', SourceFile->FileName);\r |
| 651 | fprintf (stdout, "Parent source file = '%s'\n", ParentSourceFile);\r |
| 652 | }\r |
| 653 | \r |
| 654 | //\r |
| 655 | // Make sure we didn't exceed our maximum nesting depth\r |
| 656 | //\r |
| 657 | if (NestDepth > MAX_NEST_DEPTH) {\r |
| 658 | Error (NULL, 0, 0, SourceFile->FileName, "max nesting depth (%d) exceeded", NestDepth);\r |
| 659 | Status = STATUS_ERROR;\r |
| 660 | goto Finish;\r |
| 661 | }\r |
| 662 | //\r |
| 663 | // Try to open the file locally, and if that fails try along our include paths.\r |
| 664 | //\r |
| 665 | strcpy (FoundFileName, SourceFile->FileName);\r |
| 666 | if ((SourceFile->Fptr = fopen (FoundFileName, "rb")) == NULL) {\r |
| 667 | return STATUS_ERROR;\r |
| 668 | }\r |
| 669 | //\r |
| 670 | // Process the file found\r |
| 671 | //\r |
| 672 | ProcessFile (SourceFile);\r |
| 673 | Finish:\r |
| 674 | //\r |
| 675 | // Close open files and return status\r |
| 676 | //\r |
| 677 | if (SourceFile->Fptr != NULL) {\r |
| 678 | fclose (SourceFile->Fptr);\r |
| 679 | SourceFile->Fptr = NULL;\r |
| 680 | }\r |
| 681 | \r |
| 682 | return Status;\r |
| 683 | }\r |
| 684 | \r |
| 685 | static\r |
| 686 | STATUS\r |
| 687 | ProcessFile (\r |
| 688 | SOURCE_FILE *SourceFile\r |
| 689 | )\r |
| 690 | /*++\r |
| 691 | \r |
| 692 | Routine Description:\r |
| 693 | \r |
| 694 | Given a source file that's been opened, read the contents into an internal\r |
| 695 | buffer and pre-process it to remove comments.\r |
| 696 | \r |
| 697 | Arguments:\r |
| 698 | \r |
| 699 | SourceFile - structure containing info on the file to process\r |
| 700 | \r |
| 701 | Returns:\r |
| 702 | \r |
| 703 | Standard status.\r |
| 704 | \r |
| 705 | --*/\r |
| 706 | {\r |
| 707 | //\r |
| 708 | // Get the file size, and then read the entire thing into memory.\r |
| 709 | // Allocate extra space for a terminator character.\r |
| 710 | //\r |
| 711 | fseek (SourceFile->Fptr, 0, SEEK_END);\r |
| 712 | SourceFile->FileSize = ftell (SourceFile->Fptr);\r |
| 713 | if (mGlobals.VerboseFile) {\r |
| 714 | printf ("FileSize = %d (0x%X)\n", SourceFile->FileSize, SourceFile->FileSize);\r |
| 715 | }\r |
| 716 | \r |
| 717 | fseek (SourceFile->Fptr, 0, SEEK_SET);\r |
| 718 | SourceFile->FileBuffer = (T_CHAR *) malloc (SourceFile->FileSize + sizeof (T_CHAR));\r |
| 719 | if (SourceFile->FileBuffer == NULL) {\r |
| 720 | Error (NULL, 0, 0, "memory allocation failure", NULL);\r |
| 721 | return STATUS_ERROR;\r |
| 722 | }\r |
| 723 | \r |
| 724 | fread ((void *) SourceFile->FileBuffer, SourceFile->FileSize, 1, SourceFile->Fptr);\r |
| 725 | SourceFile->FileBuffer[(SourceFile->FileSize / sizeof (T_CHAR))] = T_CHAR_NULL;\r |
| 726 | //\r |
| 727 | // Pre-process the file to replace comments with spaces\r |
| 728 | //\r |
| 729 | PreprocessFile (SourceFile);\r |
| 730 | SourceFile->LineNum = 1;\r |
| 731 | return STATUS_SUCCESS;\r |
| 732 | }\r |
| 733 | \r |
| 734 | static\r |
| 735 | void\r |
| 736 | PreprocessFile (\r |
| 737 | SOURCE_FILE *SourceFile\r |
| 738 | )\r |
| 739 | /*++\r |
| 740 | \r |
| 741 | Routine Description:\r |
| 742 | Preprocess a file to replace all carriage returns with NULLs so\r |
| 743 | we can print lines (as part of error messages) from the file to the screen.\r |
| 744 | \r |
| 745 | Arguments:\r |
| 746 | SourceFile - structure that we use to keep track of an input file.\r |
| 747 | \r |
| 748 | Returns:\r |
| 749 | Nothing.\r |
| 750 | \r |
| 751 | --*/\r |
| 752 | {\r |
| 753 | BOOLEAN InComment;\r |
| 754 | BOOLEAN SlashSlashComment;\r |
| 755 | int LineNum;\r |
| 756 | \r |
| 757 | RewindFile (SourceFile);\r |
| 758 | InComment = FALSE;\r |
| 759 | SlashSlashComment = FALSE;\r |
| 760 | while (!EndOfFile (SourceFile)) {\r |
| 761 | //\r |
| 762 | // If a line-feed, then no longer in a comment if we're in a // comment\r |
| 763 | //\r |
| 764 | if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {\r |
| 765 | SourceFile->FileBufferPtr++;\r |
| 766 | SourceFile->LineNum++;\r |
| 767 | if (InComment && SlashSlashComment) {\r |
| 768 | InComment = FALSE;\r |
| 769 | SlashSlashComment = FALSE;\r |
| 770 | }\r |
| 771 | } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {\r |
| 772 | //\r |
| 773 | // Replace all carriage returns with a NULL so we can print stuff\r |
| 774 | //\r |
| 775 | SourceFile->FileBufferPtr[0] = 0;\r |
| 776 | SourceFile->FileBufferPtr++;\r |
| 777 | //\r |
| 778 | // Check for */ comment end\r |
| 779 | //\r |
| 780 | } else if (InComment &&\r |
| 781 | !SlashSlashComment &&\r |
| 782 | (SourceFile->FileBufferPtr[0] == T_CHAR_STAR) &&\r |
| 783 | (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)\r |
| 784 | ) {\r |
| 785 | SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;\r |
| 786 | SourceFile->FileBufferPtr++;\r |
| 787 | SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;\r |
| 788 | SourceFile->FileBufferPtr++;\r |
| 789 | InComment = FALSE;\r |
| 790 | } else if (InComment) {\r |
| 791 | SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;\r |
| 792 | SourceFile->FileBufferPtr++;\r |
| 793 | //\r |
| 794 | // Check for // comments\r |
| 795 | //\r |
| 796 | } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)) {\r |
| 797 | InComment = TRUE;\r |
| 798 | SlashSlashComment = TRUE;\r |
| 799 | //\r |
| 800 | // Check for /* comment start\r |
| 801 | //\r |
| 802 | } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_STAR)) {\r |
| 803 | SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;\r |
| 804 | SourceFile->FileBufferPtr++;\r |
| 805 | SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;\r |
| 806 | SourceFile->FileBufferPtr++;\r |
| 807 | SlashSlashComment = FALSE;\r |
| 808 | InComment = TRUE;\r |
| 809 | } else {\r |
| 810 | SourceFile->FileBufferPtr++;\r |
| 811 | }\r |
| 812 | }\r |
| 813 | //\r |
| 814 | // Could check for end-of-file and still in a comment, but\r |
| 815 | // should not be necessary. So just restore the file pointers.\r |
| 816 | //\r |
| 817 | RewindFile (SourceFile);\r |
| 818 | //\r |
| 819 | // Dump the reformatted file if verbose mode\r |
| 820 | //\r |
| 821 | if (mGlobals.VerboseFile) {\r |
| 822 | LineNum = 1;\r |
| 823 | printf ("%04d: ", LineNum);\r |
| 824 | while (!EndOfFile (SourceFile)) {\r |
| 825 | if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {\r |
| 826 | printf ("'\n%04d: '", ++LineNum);\r |
| 827 | } else {\r |
| 828 | printf ("%c", SourceFile->FileBufferPtr[0]);\r |
| 829 | }\r |
| 830 | \r |
| 831 | SourceFile->FileBufferPtr++;\r |
| 832 | }\r |
| 833 | \r |
| 834 | printf ("'\n");\r |
| 835 | printf ("FileSize = %d (0x%X)\n", SourceFile->FileSize, SourceFile->FileSize);\r |
| 836 | RewindFile (SourceFile);\r |
| 837 | }\r |
| 838 | }\r |
| 839 | \r |
| 840 | BOOLEAN\r |
| 841 | SFPGetQuotedString (\r |
| 842 | T_CHAR *Str,\r |
| 843 | int Length\r |
| 844 | )\r |
| 845 | /*++\r |
| 846 | \r |
| 847 | Routine Description:\r |
| 848 | Retrieve a quoted-string from the input file. \r |
| 849 | \r |
| 850 | Arguments:\r |
| 851 | Str - pointer to a copy of the quoted string parsed\r |
| 852 | Length - size of buffer pointed to by Str\r |
| 853 | \r |
| 854 | Returns:\r |
| 855 | TRUE - next token in input stream was a quoted string, and\r |
| 856 | the string value was returned in Str\r |
| 857 | FALSE - otherwise\r |
| 858 | \r |
| 859 | --*/\r |
| 860 | {\r |
| 861 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 862 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 863 | return FALSE;\r |
| 864 | }\r |
| 865 | \r |
| 866 | if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {\r |
| 867 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 868 | while (Length > 0) {\r |
| 869 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 870 | return FALSE;\r |
| 871 | }\r |
| 872 | //\r |
| 873 | // Check for closing quote\r |
| 874 | //\r |
| 875 | if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {\r |
| 876 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 877 | *Str = 0;\r |
| 878 | return TRUE;\r |
| 879 | }\r |
| 880 | \r |
| 881 | *Str = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 882 | Str++;\r |
| 883 | Length--;\r |
| 884 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 885 | }\r |
| 886 | }\r |
| 887 | //\r |
| 888 | // First character was not a quote, or the input string length was\r |
| 889 | // insufficient to contain the quoted string, so return failure code.\r |
| 890 | //\r |
| 891 | return FALSE;\r |
| 892 | }\r |
| 893 | \r |
| 894 | BOOLEAN\r |
| 895 | SFPIsEOF (\r |
| 896 | VOID\r |
| 897 | )\r |
| 898 | /*++\r |
| 899 | \r |
| 900 | Routine Description:\r |
| 901 | Return TRUE of FALSE to indicate whether or not we've reached the end of the\r |
| 902 | file we're parsing.\r |
| 903 | \r |
| 904 | Arguments:\r |
| 905 | NA\r |
| 906 | \r |
| 907 | Returns:\r |
| 908 | TRUE - EOF reached\r |
| 909 | FALSE - otherwise\r |
| 910 | \r |
| 911 | --*/\r |
| 912 | {\r |
| 913 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 914 | return EndOfFile (&mGlobals.SourceFile);\r |
| 915 | }\r |
| 916 | \r |
| 917 | #if 0\r |
| 918 | static\r |
| 919 | T_CHAR *\r |
| 920 | GetQuotedString (\r |
| 921 | SOURCE_FILE *SourceFile,\r |
| 922 | BOOLEAN Optional\r |
| 923 | )\r |
| 924 | {\r |
| 925 | T_CHAR *String;\r |
| 926 | T_CHAR *Start;\r |
| 927 | T_CHAR *Ptr;\r |
| 928 | unsigned int Len;\r |
| 929 | BOOLEAN PreviousBackslash;\r |
| 930 | \r |
| 931 | if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {\r |
| 932 | if (Optional == FALSE) {\r |
| 933 | Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted string", "%S", SourceFile->FileBufferPtr);\r |
| 934 | }\r |
| 935 | \r |
| 936 | return NULL;\r |
| 937 | }\r |
| 938 | \r |
| 939 | Len = 0;\r |
| 940 | SourceFile->FileBufferPtr++;\r |
| 941 | Start = Ptr = SourceFile->FileBufferPtr;\r |
| 942 | PreviousBackslash = FALSE;\r |
| 943 | while (!EndOfFile (SourceFile)) {\r |
| 944 | if ((SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) && (PreviousBackslash == FALSE)) {\r |
| 945 | break;\r |
| 946 | } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {\r |
| 947 | Warning (SourceFile->FileName, SourceFile->LineNum, 0, "carriage return found in quoted string", "%S", Start);\r |
| 948 | PreviousBackslash = FALSE;\r |
| 949 | } else if (SourceFile->FileBufferPtr[0] == T_CHAR_BACKSLASH) {\r |
| 950 | PreviousBackslash = TRUE;\r |
| 951 | } else {\r |
| 952 | PreviousBackslash = FALSE;\r |
| 953 | }\r |
| 954 | \r |
| 955 | SourceFile->FileBufferPtr++;\r |
| 956 | Len++;\r |
| 957 | }\r |
| 958 | \r |
| 959 | if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {\r |
| 960 | Warning (SourceFile->FileName, SourceFile->LineNum, 0, "missing closing quote on string", "%S", Start);\r |
| 961 | } else {\r |
| 962 | SourceFile->FileBufferPtr++;\r |
| 963 | }\r |
| 964 | //\r |
| 965 | // Now allocate memory for the string and save it off\r |
| 966 | //\r |
| 967 | String = (T_CHAR *) malloc ((Len + 1) * sizeof (T_CHAR));\r |
| 968 | if (String == NULL) {\r |
| 969 | Error (NULL, 0, 0, "memory allocation failed", NULL);\r |
| 970 | return NULL;\r |
| 971 | }\r |
| 972 | //\r |
| 973 | // Copy the string from the file buffer to the local copy.\r |
| 974 | // We do no reformatting of it whatsoever at this point.\r |
| 975 | //\r |
| 976 | Ptr = String;\r |
| 977 | while (Len > 0) {\r |
| 978 | *Ptr = *Start;\r |
| 979 | Start++;\r |
| 980 | Ptr++;\r |
| 981 | Len--;\r |
| 982 | }\r |
| 983 | \r |
| 984 | *Ptr = 0;\r |
| 985 | return String;\r |
| 986 | }\r |
| 987 | #endif\r |
| 988 | static\r |
| 989 | BOOLEAN\r |
| 990 | EndOfFile (\r |
| 991 | SOURCE_FILE *SourceFile\r |
| 992 | )\r |
| 993 | {\r |
| 994 | //\r |
| 995 | // The file buffer pointer will typically get updated before the End-of-file flag in the\r |
| 996 | // source file structure, so check it first.\r |
| 997 | //\r |
| 998 | if (SourceFile->FileBufferPtr >= SourceFile->FileBuffer + SourceFile->FileSize / sizeof (T_CHAR)) {\r |
| 999 | SourceFile->EndOfFile = TRUE;\r |
| 1000 | return TRUE;\r |
| 1001 | }\r |
| 1002 | \r |
| 1003 | if (SourceFile->EndOfFile) {\r |
| 1004 | return TRUE;\r |
| 1005 | }\r |
| 1006 | \r |
| 1007 | return FALSE;\r |
| 1008 | }\r |
| 1009 | \r |
| 1010 | #if 0\r |
| 1011 | static\r |
| 1012 | void\r |
| 1013 | ProcessTokenInclude (\r |
| 1014 | SOURCE_FILE *SourceFile\r |
| 1015 | )\r |
| 1016 | {\r |
| 1017 | char IncludeFileName[MAX_PATH];\r |
| 1018 | char *To;\r |
| 1019 | unsigned int Len;\r |
| 1020 | BOOLEAN ReportedError;\r |
| 1021 | SOURCE_FILE IncludedSourceFile;\r |
| 1022 | \r |
| 1023 | ReportedError = FALSE;\r |
| 1024 | if (SkipWhiteSpace (SourceFile) == 0) {\r |
| 1025 | Warning (SourceFile->FileName, SourceFile->LineNum, 0, "expected whitespace following #include keyword", NULL);\r |
| 1026 | }\r |
| 1027 | //\r |
| 1028 | // Should be quoted file name\r |
| 1029 | //\r |
| 1030 | if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {\r |
| 1031 | Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted include file name", NULL);\r |
| 1032 | goto FailDone;\r |
| 1033 | }\r |
| 1034 | \r |
| 1035 | SourceFile->FileBufferPtr++;\r |
| 1036 | //\r |
| 1037 | // Copy the filename as ascii to our local string\r |
| 1038 | //\r |
| 1039 | To = IncludeFileName;\r |
| 1040 | Len = 0;\r |
| 1041 | while (!EndOfFile (SourceFile)) {\r |
| 1042 | if ((SourceFile->FileBufferPtr[0] == T_CHAR_CR) || (SourceFile->FileBufferPtr[0] == T_CHAR_LF)) {\r |
| 1043 | Error (SourceFile->FileName, SourceFile->LineNum, 0, "end-of-line found in quoted include file name", NULL);\r |
| 1044 | goto FailDone;\r |
| 1045 | }\r |
| 1046 | \r |
| 1047 | if (SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {\r |
| 1048 | SourceFile->FileBufferPtr++;\r |
| 1049 | break;\r |
| 1050 | }\r |
| 1051 | //\r |
| 1052 | // If too long, then report the error once and process until the closing quote\r |
| 1053 | //\r |
| 1054 | Len++;\r |
| 1055 | if (!ReportedError && (Len >= sizeof (IncludeFileName))) {\r |
| 1056 | Error (SourceFile->FileName, SourceFile->LineNum, 0, "length of include file name exceeds limit", NULL);\r |
| 1057 | ReportedError = TRUE;\r |
| 1058 | }\r |
| 1059 | \r |
| 1060 | if (!ReportedError) {\r |
| 1061 | *To = (T_CHAR) SourceFile->FileBufferPtr[0];\r |
| 1062 | To++;\r |
| 1063 | }\r |
| 1064 | \r |
| 1065 | SourceFile->FileBufferPtr++;\r |
| 1066 | }\r |
| 1067 | \r |
| 1068 | if (!ReportedError) {\r |
| 1069 | *To = 0;\r |
| 1070 | memset ((char *) &IncludedSourceFile, 0, sizeof (SOURCE_FILE));\r |
| 1071 | strcpy (IncludedSourceFile.FileName, IncludeFileName);\r |
| 1072 | ProcessIncludeFile (&IncludedSourceFile, SourceFile);\r |
| 1073 | }\r |
| 1074 | \r |
| 1075 | return ;\r |
| 1076 | FailDone:\r |
| 1077 | //\r |
| 1078 | // Error recovery -- skip to next #\r |
| 1079 | //\r |
| 1080 | SourceFile->SkipToHash = TRUE;\r |
| 1081 | }\r |
| 1082 | #endif\r |
| 1083 | static\r |
| 1084 | BOOLEAN\r |
| 1085 | IsWhiteSpace (\r |
| 1086 | SOURCE_FILE *SourceFile\r |
| 1087 | )\r |
| 1088 | {\r |
| 1089 | switch (*SourceFile->FileBufferPtr) {\r |
| 1090 | case T_CHAR_NULL:\r |
| 1091 | case T_CHAR_CR:\r |
| 1092 | case T_CHAR_SPACE:\r |
| 1093 | case T_CHAR_TAB:\r |
| 1094 | case T_CHAR_LF:\r |
| 1095 | return TRUE;\r |
| 1096 | \r |
| 1097 | default:\r |
| 1098 | return FALSE;\r |
| 1099 | }\r |
| 1100 | }\r |
| 1101 | \r |
| 1102 | unsigned int\r |
| 1103 | SkipWhiteSpace (\r |
| 1104 | SOURCE_FILE *SourceFile\r |
| 1105 | )\r |
| 1106 | {\r |
| 1107 | unsigned int Count;\r |
| 1108 | \r |
| 1109 | Count = 0;\r |
| 1110 | while (!EndOfFile (SourceFile)) {\r |
| 1111 | Count++;\r |
| 1112 | switch (*SourceFile->FileBufferPtr) {\r |
| 1113 | case T_CHAR_NULL:\r |
| 1114 | case T_CHAR_CR:\r |
| 1115 | case T_CHAR_SPACE:\r |
| 1116 | case T_CHAR_TAB:\r |
| 1117 | SourceFile->FileBufferPtr++;\r |
| 1118 | break;\r |
| 1119 | \r |
| 1120 | case T_CHAR_LF:\r |
| 1121 | SourceFile->FileBufferPtr++;\r |
| 1122 | SourceFile->LineNum++;\r |
| 1123 | break;\r |
| 1124 | \r |
| 1125 | default:\r |
| 1126 | return Count - 1;\r |
| 1127 | }\r |
| 1128 | }\r |
| 1129 | //\r |
| 1130 | // Some tokens require trailing whitespace. If we're at the end of the\r |
| 1131 | // file, then we count that as well.\r |
| 1132 | //\r |
| 1133 | if ((Count == 0) && (EndOfFile (SourceFile))) {\r |
| 1134 | Count++;\r |
| 1135 | }\r |
| 1136 | \r |
| 1137 | return Count;\r |
| 1138 | }\r |
| 1139 | \r |
| 1140 | static\r |
| 1141 | unsigned int\r |
| 1142 | t_strcmp (\r |
| 1143 | T_CHAR *Buffer,\r |
| 1144 | T_CHAR *Str\r |
| 1145 | )\r |
| 1146 | /*++\r |
| 1147 | \r |
| 1148 | Routine Description:\r |
| 1149 | Compare two strings for equality. The string pointed to by 'Buffer' may or may not be null-terminated,\r |
| 1150 | so only compare up to the length of Str.\r |
| 1151 | \r |
| 1152 | Arguments:\r |
| 1153 | Buffer - pointer to first (possibly not null-terminated) string\r |
| 1154 | Str - pointer to null-terminated string to compare to Buffer\r |
| 1155 | \r |
| 1156 | Returns:\r |
| 1157 | Number of bytes matched if exact match\r |
| 1158 | 0 if Buffer does not start with Str\r |
| 1159 | \r |
| 1160 | --*/\r |
| 1161 | {\r |
| 1162 | unsigned int Len;\r |
| 1163 | \r |
| 1164 | Len = 0;\r |
| 1165 | while (*Str && (*Str == *Buffer)) {\r |
| 1166 | Buffer++;\r |
| 1167 | Str++;\r |
| 1168 | Len++;\r |
| 1169 | }\r |
| 1170 | \r |
| 1171 | if (*Str) {\r |
| 1172 | return 0;\r |
| 1173 | }\r |
| 1174 | \r |
| 1175 | return Len;\r |
| 1176 | }\r |
| 1177 | \r |
| 1178 | static\r |
| 1179 | unsigned int\r |
| 1180 | t_strlen (\r |
| 1181 | T_CHAR *Str\r |
| 1182 | )\r |
| 1183 | {\r |
| 1184 | unsigned int Len;\r |
| 1185 | Len = 0;\r |
| 1186 | while (*Str) {\r |
| 1187 | Len++;\r |
| 1188 | Str++;\r |
| 1189 | }\r |
| 1190 | \r |
| 1191 | return Len;\r |
| 1192 | }\r |
| 1193 | \r |
| 1194 | static\r |
| 1195 | unsigned int\r |
| 1196 | t_strncmp (\r |
| 1197 | T_CHAR *Str1,\r |
| 1198 | T_CHAR *Str2,\r |
| 1199 | int Len\r |
| 1200 | )\r |
| 1201 | {\r |
| 1202 | while (Len > 0) {\r |
| 1203 | if (*Str1 != *Str2) {\r |
| 1204 | return Len;\r |
| 1205 | }\r |
| 1206 | \r |
| 1207 | Len--;\r |
| 1208 | Str1++;\r |
| 1209 | Str2++;\r |
| 1210 | }\r |
| 1211 | \r |
| 1212 | return 0;\r |
| 1213 | }\r |
| 1214 | \r |
| 1215 | static\r |
| 1216 | T_CHAR *\r |
| 1217 | t_strcpy (\r |
| 1218 | T_CHAR *Dest,\r |
| 1219 | T_CHAR *Src\r |
| 1220 | )\r |
| 1221 | {\r |
| 1222 | T_CHAR *SaveDest;\r |
| 1223 | SaveDest = Dest;\r |
| 1224 | while (*Src) {\r |
| 1225 | *Dest = *Src;\r |
| 1226 | Dest++;\r |
| 1227 | Src++;\r |
| 1228 | }\r |
| 1229 | \r |
| 1230 | *Dest = 0;\r |
| 1231 | return SaveDest;\r |
| 1232 | }\r |
| 1233 | \r |
| 1234 | static\r |
| 1235 | void\r |
| 1236 | RewindFile (\r |
| 1237 | SOURCE_FILE *SourceFile\r |
| 1238 | )\r |
| 1239 | {\r |
| 1240 | SourceFile->LineNum = 1;\r |
| 1241 | SourceFile->FileBufferPtr = SourceFile->FileBuffer;\r |
| 1242 | SourceFile->EndOfFile = 0;\r |
| 1243 | }\r |
| 1244 | \r |
| 1245 | static\r |
| 1246 | UINT32\r |
| 1247 | GetHexChars (\r |
| 1248 | T_CHAR *Buffer,\r |
| 1249 | UINT32 BufferLen\r |
| 1250 | )\r |
| 1251 | {\r |
| 1252 | UINT32 Len;\r |
| 1253 | Len = 0;\r |
| 1254 | while (!EndOfFile (&mGlobals.SourceFile) && (BufferLen > 0)) {\r |
| 1255 | if (isxdigit (mGlobals.SourceFile.FileBufferPtr[0])) {\r |
| 1256 | *Buffer = mGlobals.SourceFile.FileBufferPtr[0];\r |
| 1257 | Buffer++;\r |
| 1258 | Len++;\r |
| 1259 | BufferLen--;\r |
| 1260 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 1261 | } else {\r |
| 1262 | break;\r |
| 1263 | }\r |
| 1264 | }\r |
| 1265 | //\r |
| 1266 | // Null terminate if we can\r |
| 1267 | //\r |
| 1268 | if ((Len > 0) && (BufferLen > 0)) {\r |
| 1269 | *Buffer = 0;\r |
| 1270 | }\r |
| 1271 | \r |
| 1272 | return Len;\r |
| 1273 | }\r |
| 1274 | \r |
| 1275 | BOOLEAN\r |
| 1276 | SFPGetGuid (\r |
| 1277 | int GuidStyle,\r |
| 1278 | EFI_GUID *Value\r |
| 1279 | )\r |
| 1280 | /*++\r |
| 1281 | \r |
| 1282 | Routine Description:\r |
| 1283 | Parse a GUID from the input stream. Stop when you discover white space.\r |
| 1284 | \r |
| 1285 | Arguments:\r |
| 1286 | GuidStyle - Style of the following GUID token\r |
| 1287 | Value - pointer to EFI_GUID struct for output\r |
| 1288 | \r |
| 1289 | Returns:\r |
| 1290 | TRUE - GUID string parsed successfully\r |
| 1291 | FALSE - otherwise\r |
| 1292 | \r |
| 1293 | GUID styles\r |
| 1294 | Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD\r |
| 1295 | \r |
| 1296 | --*/\r |
| 1297 | {\r |
| 1298 | UINT32 Value32;\r |
| 1299 | UINT32 Index;\r |
| 1300 | FILE_POSITION FPos;\r |
| 1301 | T_CHAR TempString[20];\r |
| 1302 | T_CHAR TempString2[3];\r |
| 1303 | T_CHAR *From;\r |
| 1304 | T_CHAR *To;\r |
| 1305 | UINT32 Len;\r |
| 1306 | BOOLEAN Status;\r |
| 1307 | \r |
| 1308 | Status = FALSE;\r |
| 1309 | //\r |
| 1310 | // Skip white space, then start parsing\r |
| 1311 | //\r |
| 1312 | SkipWhiteSpace (&mGlobals.SourceFile);\r |
| 1313 | GetFilePosition (&FPos);\r |
| 1314 | if (EndOfFile (&mGlobals.SourceFile)) {\r |
| 1315 | return FALSE;\r |
| 1316 | }\r |
| 1317 | \r |
| 1318 | if (GuidStyle == PARSE_GUID_STYLE_5_FIELDS) {\r |
| 1319 | //\r |
| 1320 | // Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD\r |
| 1321 | //\r |
| 1322 | Len = GetHexChars (TempString, sizeof (TempString));\r |
| 1323 | if ((Len == 0) || (Len > 8)) {\r |
| 1324 | goto Done;\r |
| 1325 | }\r |
| 1326 | \r |
| 1327 | sscanf (TempString, "%x", &Value32);\r |
| 1328 | Value->Data1 = Value32;\r |
| 1329 | //\r |
| 1330 | // Next two UINT16 fields\r |
| 1331 | //\r |
| 1332 | if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {\r |
| 1333 | goto Done;\r |
| 1334 | }\r |
| 1335 | \r |
| 1336 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 1337 | Len = GetHexChars (TempString, sizeof (TempString));\r |
| 1338 | if ((Len == 0) || (Len > 4)) {\r |
| 1339 | goto Done;\r |
| 1340 | }\r |
| 1341 | \r |
| 1342 | sscanf (TempString, "%x", &Value32);\r |
| 1343 | Value->Data2 = (UINT16) Value32;\r |
| 1344 | \r |
| 1345 | if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {\r |
| 1346 | goto Done;\r |
| 1347 | }\r |
| 1348 | \r |
| 1349 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 1350 | Len = GetHexChars (TempString, sizeof (TempString));\r |
| 1351 | if ((Len == 0) || (Len > 4)) {\r |
| 1352 | goto Done;\r |
| 1353 | }\r |
| 1354 | \r |
| 1355 | sscanf (TempString, "%x", &Value32);\r |
| 1356 | Value->Data3 = (UINT16) Value32;\r |
| 1357 | //\r |
| 1358 | // Parse the "AAAA" as two bytes\r |
| 1359 | //\r |
| 1360 | if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {\r |
| 1361 | goto Done;\r |
| 1362 | }\r |
| 1363 | \r |
| 1364 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 1365 | Len = GetHexChars (TempString, sizeof (TempString));\r |
| 1366 | if ((Len == 0) || (Len > 4)) {\r |
| 1367 | goto Done;\r |
| 1368 | }\r |
| 1369 | \r |
| 1370 | sscanf (TempString, "%x", &Value32);\r |
| 1371 | Value->Data4[0] = (UINT8) (Value32 >> 8);\r |
| 1372 | Value->Data4[1] = (UINT8) Value32;\r |
| 1373 | if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {\r |
| 1374 | goto Done;\r |
| 1375 | }\r |
| 1376 | \r |
| 1377 | mGlobals.SourceFile.FileBufferPtr++;\r |
| 1378 | //\r |
| 1379 | // Read the last 6 bytes of the GUID\r |
| 1380 | //\r |
| 1381 | //\r |
| 1382 | Len = GetHexChars (TempString, sizeof (TempString));\r |
| 1383 | if ((Len == 0) || (Len > 12)) {\r |
| 1384 | goto Done;\r |
| 1385 | }\r |
| 1386 | //\r |
| 1387 | // Insert leading 0's to make life easier\r |
| 1388 | //\r |
| 1389 | if (Len != 12) {\r |
| 1390 | From = TempString + Len - 1;\r |
| 1391 | To = TempString + 11;\r |
| 1392 | TempString[12] = 0;\r |
| 1393 | while (From >= TempString) {\r |
| 1394 | *To = *From;\r |
| 1395 | To--;\r |
| 1396 | From--;\r |
| 1397 | }\r |
| 1398 | \r |
| 1399 | while (To >= TempString) {\r |
| 1400 | *To = '0';\r |
| 1401 | To--;\r |
| 1402 | }\r |
| 1403 | }\r |
| 1404 | //\r |
| 1405 | // Now parse each byte\r |
| 1406 | //\r |
| 1407 | TempString2[2] = 0;\r |
| 1408 | for (Index = 0; Index < 6; Index++) {\r |
| 1409 | //\r |
| 1410 | // Copy the two characters from the input string to something\r |
| 1411 | // we can parse.\r |
| 1412 | //\r |
| 1413 | TempString2[0] = TempString[Index * 2];\r |
| 1414 | TempString2[1] = TempString[Index * 2 + 1];\r |
| 1415 | sscanf (TempString2, "%x", &Value32);\r |
| 1416 | Value->Data4[Index + 2] = (UINT8) Value32;\r |
| 1417 | }\r |
| 1418 | \r |
| 1419 | Status = TRUE;\r |
| 1420 | } else {\r |
| 1421 | //\r |
| 1422 | // Unsupported GUID style\r |
| 1423 | //\r |
| 1424 | return FALSE;\r |
| 1425 | }\r |
| 1426 | \r |
| 1427 | Done:\r |
| 1428 | if (Status == FALSE) {\r |
| 1429 | SetFilePosition (&FPos);\r |
| 1430 | }\r |
| 1431 | \r |
| 1432 | return Status;\r |
| 1433 | }\r |
| 1434 | \r |
| 1435 | static\r |
| 1436 | STATUS\r |
| 1437 | GetFilePosition (\r |
| 1438 | FILE_POSITION *Fpos\r |
| 1439 | )\r |
| 1440 | {\r |
| 1441 | Fpos->FileBufferPtr = mGlobals.SourceFile.FileBufferPtr;\r |
| 1442 | return STATUS_SUCCESS;\r |
| 1443 | }\r |
| 1444 | \r |
| 1445 | static\r |
| 1446 | STATUS\r |
| 1447 | SetFilePosition (\r |
| 1448 | FILE_POSITION *Fpos\r |
| 1449 | )\r |
| 1450 | {\r |
| 1451 | //\r |
| 1452 | // Should check range of pointer\r |
| 1453 | //\r |
| 1454 | mGlobals.SourceFile.FileBufferPtr = Fpos->FileBufferPtr;\r |
| 1455 | return STATUS_SUCCESS;\r |
| 1456 | }\r |
projects / mirror_edk2.git / blame