asremove.c

acpi tools for linux include acpiexec and acpixtract

            SubString = EndifPtr;
        }

        /* Remove the ... #endif part */
        /* Find end of this line */

        SubBuffer = AsSkipPastChar (EndifPtr, '\n');
        if (!SubBuffer)
        {
            return;
        }

        /* Remove the lines */

        SubBuffer = AsRemoveData (SubString, SubBuffer);
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsRemoveMacro
 *
 * DESCRIPTION: Remove every line that contains the keyword.  Does not
 *              skip comments.
 *
 ******************************************************************************/

void
AsRemoveMacro (
    char                    *Buffer,
    char                    *Keyword)
{
    char                    *SubString;
    char                    *SubBuffer;
    int                     NestLevel;


    SubBuffer = Buffer;
    SubString = Buffer;


    while (SubString)
    {
        SubString = strstr (SubBuffer, Keyword);

        if (SubString)
        {
            SubBuffer = SubString;

            /* Find start of the macro parameters */

            while (*SubString != '(')
            {
                SubString++;
            }
            SubString++;

            /* Remove the macro name and opening paren */

            SubString = AsRemoveData (SubBuffer, SubString);

            NestLevel = 1;
            while (*SubString)
            {
                if (*SubString == '(')
                {
                    NestLevel++;
                }
                else if (*SubString == ')')
                {
                    NestLevel--;
                }

                SubString++;

                if (NestLevel == 0)
                {
                    break;
                }
            }

            /* Remove the closing paren */

            SubBuffer = AsRemoveData (SubString-1, SubString);
        }
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsRemoveLine
 *
 * DESCRIPTION: Remove every line that contains the keyword.  Does not
 *              skip comments.
 *
 ******************************************************************************/

void
AsRemoveLine (
    char                    *Buffer,
    char                    *Keyword)
{
    char                    *SubString;
    char                    *SubBuffer;


    SubBuffer = Buffer;
    SubString = Buffer;


    while (SubString)
    {
        SubString = strstr (SubBuffer, Keyword);

        if (SubString)
        {
            SubBuffer = SubString;

            /* Find start of this line */

            while (*SubString != '\n')
            {
                SubString--;
            }
            SubString++;

            /* Find end of this line */

            SubBuffer = AsSkipPastChar (SubBuffer, '\n');
            if (!SubBuffer)
            {
                return;
            }

            /* Remove the line */

            SubBuffer = AsRemoveData (SubString, SubBuffer);
        }
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsReduceTypedefs
 *
 * DESCRIPTION: Eliminate certain typedefs
 *
 ******************************************************************************/

void
AsReduceTypedefs (
    char                    *Buffer,
    char                    *Keyword)
{
    char                    *SubString;
    char                    *SubBuffer;
    int                     NestLevel;


    SubBuffer = Buffer;
    SubString = Buffer;


    while (SubString)
    {
        SubString = strstr (SubBuffer, Keyword);

        if (SubString)
        {
            /* Remove the typedef itself */

            SubBuffer = SubString + strlen ("typedef") + 1;
            SubBuffer = AsRemoveData (SubString, SubBuffer);

            /* Find the opening brace of the struct or union */

            while (*SubString != '{')
            {
                SubString++;
            }
            SubString++;

            /* Find the closing brace.  Handles nested braces */

            NestLevel = 1;
            while (*SubString)
            {
                if (*SubString == '{')
                {
                    NestLevel++;
                }
                else if (*SubString == '}')
                {
                    NestLevel--;
                }

                SubString++;

                if (NestLevel == 0)
                {
                    break;
                }
            }

            /* Remove an extra line feed if present */

            if (!strncmp (SubString - 3, "\n\n", 2))
            {
                *(SubString -2) = '}';
                SubString--;
            }

            /* Find the end of the typedef name */

            SubBuffer = AsSkipUntilChar (SubString, ';');

            /* And remove the typedef name */

            SubBuffer = AsRemoveData (SubString, SubBuffer);
        }
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsRemoveEmptyBlocks
 *
 * DESCRIPTION: Remove any C blocks (e.g., if {}) that contain no code.  This
 *              can happen as a result of removing lines such as DEBUG_PRINT.
 *
 ******************************************************************************/

void
AsRemoveEmptyBlocks (
    char                    *Buffer,
    char                    *Filename)
{
    char                    *SubBuffer;
    char                    *BlockStart;
    BOOLEAN                 EmptyBlock = TRUE;
    BOOLEAN                 AnotherPassRequired = TRUE;
    UINT32                  BlockCount = 0;


    while (AnotherPassRequired)
    {
        SubBuffer = Buffer;
        AnotherPassRequired = FALSE;

        while (*SubBuffer)
        {
            if (*SubBuffer == '{')
            {
                BlockStart = SubBuffer;
                EmptyBlock = TRUE;

                SubBuffer++;
                while (*SubBuffer != '}')
                {
                    if ((*SubBuffer != ' ') &&
                        (*SubBuffer != '\n'))
                    {
                        EmptyBlock = FALSE;
                        break;
                    }
                    SubBuffer++;
                }

                if (EmptyBlock)
                {
                    /* Find start of the first line of the block */

                    while (*BlockStart != '\n')
                    {
                        BlockStart--;
                    }

                    /* Find end of the last line of the block */

                    SubBuffer = AsSkipUntilChar (SubBuffer, '\n');
                    if (!SubBuffer)
                    {
                        break;
                    }

                    /* Remove the block */

                    SubBuffer = AsRemoveData (BlockStart, SubBuffer);
                    BlockCount++;
                    AnotherPassRequired = TRUE;
                    continue;
                }
            }

            SubBuffer++;
        }
    }

    if (BlockCount)
    {
        Gbl_MadeChanges = TRUE;
        AsPrint ("Code blocks deleted", BlockCount, Filename);
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsRemoveDebugMacros
 *
 * DESCRIPTION: Remove all "Debug" macros -- macros that produce debug output.
 *
 ******************************************************************************/

void
AsRemoveDebugMacros (
    char                    *Buffer)
{
    AsRemoveConditionalCompile (Buffer, "ACPI_DEBUG_OUTPUT");

    AsRemoveStatement (Buffer, "ACPI_DEBUG_PRINT",      REPLACE_WHOLE_WORD);
    AsRemoveStatement (Buffer, "ACPI_DEBUG_PRINT_RAW",  REPLACE_WHOLE_WORD);
    AsRemoveStatement (Buffer, "DEBUG_EXEC",            REPLACE_WHOLE_WORD);
    AsRemoveStatement (Buffer, "FUNCTION_ENTRY",        REPLACE_WHOLE_WORD);
    AsRemoveStatement (Buffer, "PROC_NAME",             REPLACE_WHOLE_WORD);
    AsRemoveStatement (Buffer, "FUNCTION_TRACE",        REPLACE_SUBSTRINGS);
    AsRemoveStatement (Buffer, "DUMP_",                 REPLACE_SUBSTRINGS);

    AsReplaceString ("return_VOID",         "return", REPLACE_WHOLE_WORD, Buffer);
    AsReplaceString ("return_PTR",          "return", REPLACE_WHOLE_WORD, Buffer);
    AsReplaceString ("return_ACPI_STATUS",  "return", REPLACE_WHOLE_WORD, Buffer);
    AsReplaceString ("return_acpi_status",  "return", REPLACE_WHOLE_WORD, Buffer);
    AsReplaceString ("return_VALUE",        "return", REPLACE_WHOLE_WORD, Buffer);
}