diff options
Diffstat (limited to 'source/compiler/prutils.c')
| -rw-r--r-- | source/compiler/prutils.c | 238 |
1 files changed, 236 insertions, 2 deletions
diff --git a/source/compiler/prutils.c b/source/compiler/prutils.c index 907ca3ae9..2eb91a6c0 100644 --- a/source/compiler/prutils.c +++ b/source/compiler/prutils.c @@ -284,6 +284,238 @@ PrError ( /******************************************************************************* * + * FUNCTION: PrReplaceResizeSubstring + * + * PARAMETERS: Args - Struct containing name, offset & usecount + * Diff1 - Difference in lengths when new < old + * Diff2 - Difference in lengths when new > old +* i - The curr. no. of iteration of replacement + * Token - Substring that replaces Args->Name + * + * RETURN: None + * + * DESCRIPTION: Advanced substring replacement in a string using resized buffer. + * + ******************************************************************************/ + +void +PrReplaceResizeSubstring( + PR_MACRO_ARG *Args, + UINT32 Diff1, + UINT32 Diff2, + UINT32 i, + char *Token) +{ + UINT32 b, PrevOffset; + char *temp; + char macro_sep[64]; + + + AslGbl_MacroTokenReplaceBuffer = (char *) realloc (AslGbl_MacroTokenReplaceBuffer, + (2 * (strlen (AslGbl_MacroTokenBuffer)))); + + strcpy (macro_sep, "~,() {}!*/%+-<>=&^|\"\t\n"); + + /* + * When the replacement argument (during invocation) length + * < replaced parameter (in the macro function definition + * and its expansion) length + */ + if (Diff1 != 0) + { + /* + * We save the offset value to reset it after replacing each + * instance of each arg and setting the offset value to + * the start of the arg to be replaced since it changes + * with each iteration when arg length != token length + */ + PrevOffset = Args->Offset[i]; + temp = strstr (AslGbl_MacroTokenBuffer, Args->Name); + +ResetHere1: + temp = strstr (temp, Args->Name); + Args->Offset[i] = strlen (AslGbl_MacroTokenBuffer) - + strlen (temp); + if (Args->Offset[i] == 0) + { + goto JumpHere1; + } + if ((strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] - 1)])) && + (strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] + strlen (Args->Name))]))) + { + Args->Offset[i] += 0; + } + else + { + temp += strlen (Args->Name); + goto ResetHere1; + } + + /* + * For now, we simply set the extra char positions (generated + * due to longer name replaced by shorter name) to whitespace + * chars so it will be ignored during compilation + */ +JumpHere1: + b = strlen (Token) + Args->Offset[i]; + memset (&AslGbl_MacroTokenBuffer[b], ' ', Diff1); + +# if 0 + + /* Work in progress as of 03/08/2023 - experimental 'if' block + * to test code for removing extra whitespaces from the macro + * replacement when replacement arg < replaced param + */ + char Buff[8192]; + /* char* Replace; */ + /* Replace = Buff; */ + + for (j = 0; j < strlen (AslGbl_MacroTokenBuffer); j++) + { + Buff[j] = AslGbl_MacroTokenBuffer[j]; + } + Buff[strlen (AslGbl_MacroTokenBuffer)] = '\0'; + //fprintf (stderr, "Buff: %s\n", Buff); + + UINT32 len = strlen (Buff); + + for (j = 0; j < len; j++) + { + if (Buff[0] == ' ') + { + for (j = 0; j < (len - 1); j++) + { + Buff[j] = Buff[j + 1]; + } + Buff[j] = '\0'; + len--; + j = -1; + continue; + } + + if (Buff[j] == ' ' && Buff[j + 1] == ' ') + { + for (k = 0; k < (len - 1); k++) + { + Buff[j] = Buff[j + 1]; + } + Buff[j] = '\0'; + len--; + j--; + } + } + //fprintf(stderr, "Buff: %s\n", Buff); + + for (k = 0; k < strlen (Buff); k++) + { + AslGbl_MacroTokenBuffer[k] = Buff[k]; + } +#endif + + PrReplaceData ( + &AslGbl_MacroTokenBuffer[Args->Offset[i]], + strlen (Token), Token, strlen (Token)); + + temp = NULL; + Args->Offset[i] = PrevOffset; + } + + /* + * When the replacement argument (during invocation) length + * > replaced parameter (in the macro function definition + * and its expansion) length + */ + else if (Diff2 != 0) + { + /* Doing the same thing with offset value as for prev case */ + + PrevOffset = Args->Offset[i]; + temp = strstr (AslGbl_MacroTokenBuffer, Args->Name); + +ResetHere2: + temp = strstr (temp, Args->Name); + Args->Offset[i] = strlen (AslGbl_MacroTokenBuffer) - + strlen (temp); + if (Args->Offset[i] == 0) + { + goto JumpHere2; + } + if ((strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] - 1)])) && + (strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] + strlen (Args->Name))]))) + { + Args->Offset[i] += 0; + } + else + { + temp+= strlen (Args->Name); + goto ResetHere2; + } + + /* + * We will need to allocate some extra space in our buffer to + * accommodate the increase in the replacement string length + * over the shorter outgoing arg string and do the replacement + * at the correct offset value which is resetted every iteration + */ +JumpHere2: + strncpy (AslGbl_MacroTokenReplaceBuffer, AslGbl_MacroTokenBuffer, Args->Offset[i]); + strcat (AslGbl_MacroTokenReplaceBuffer, Token); + strcat (AslGbl_MacroTokenReplaceBuffer, (AslGbl_MacroTokenBuffer + + (Args->Offset[i] + strlen (Args->Name)))); + + strcpy (AslGbl_MacroTokenBuffer, AslGbl_MacroTokenReplaceBuffer); + + temp = NULL; + Args->Offset[i] = PrevOffset; + } + + /* + * When the replacement argument (during invocation) length = + * replaced parameter (in the macro function definition and + * its expansion) length + */ + else + { + + /* + * We still need to reset the offset for each iteration even when + * arg and param lengths are same since any macro func invocation + * could use various cases for each separate arg-param pair + */ + PrevOffset = Args->Offset[i]; + temp = strstr (AslGbl_MacroTokenBuffer, Args->Name); + +ResetHere3: + temp = strstr (temp, Args->Name); + Args->Offset[i] = strlen (AslGbl_MacroTokenBuffer) - + strlen (temp); + if (Args->Offset[i] == 0) + { + goto JumpHere3; + } + if ((strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] - 1)])) && + (strchr (macro_sep, AslGbl_MacroTokenBuffer[(Args->Offset[i] + strlen (Args->Name))]))) + { + Args->Offset[i] += 0; + } + else + { + temp += strlen (Args->Name); + goto ResetHere3; + } + +JumpHere3: + PrReplaceData ( + &AslGbl_MacroTokenBuffer[Args->Offset[i]], + strlen (Args->Name), Token, strlen (Token)); + temp = NULL; + Args->Offset[i] = PrevOffset; + } +} + + +/******************************************************************************* + * * FUNCTION: PrReplaceData * * PARAMETERS: Buffer - Original(target) buffer pointer @@ -291,13 +523,13 @@ PrError ( * BufferToAdd - Data to be inserted into target buffer * LengthToAdd - Length of BufferToAdd * - * RETURN: None + * RETURN: Pointer to where the buffer is replaced with data * * DESCRIPTION: Generic buffer data replacement. * ******************************************************************************/ -void +char * PrReplaceData ( char *Buffer, UINT32 LengthToRemove, @@ -325,12 +557,14 @@ PrReplaceData ( } } + /* Now we can move in the new data */ if (LengthToAdd > 0) { memmove (Buffer, BufferToAdd, LengthToAdd); } + return (Buffer + LengthToAdd); } |