asconvrt.c

acpi tools for linux include acpiexec and acpixtract

/******************************************************************************
 *
 * Module Name: asconvrt - Source conversion code
 *              $Revision: 1.66 $
 *
 *****************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999 - 2008, Intel Corp.
 * All rights reserved.
 *
 * 2. License
 *
 * 2.1. This is your license from Intel Corp. under its intellectual property
 * rights.  You may have additional license terms from the party that provided
 * you this software, covering your right to use that party's intellectual
 * property rights.
 *
 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 * copy of the source code appearing in this file ("Covered Code") an
 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 * base code distributed originally by Intel ("Original Intel Code") to copy,
 * make derivatives, distribute, use and display any portion of the Covered
 * Code in any form, with the right to sublicense such rights; and
 *
 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 * license (with the right to sublicense), under only those claims of Intel
 * patents that are infringed by the Original Intel Code, to make, use, sell,
 * offer to sell, and import the Covered Code and derivative works thereof
 * solely to the minimum extent necessary to exercise the above copyright
 * license, and in no event shall the patent license extend to any additions
 * to or modifications of the Original Intel Code.  No other license or right
 * is granted directly or by implication, estoppel or otherwise;
 *
 * The above copyright and patent license is granted only if the following
 * conditions are met:
 *
 * 3. Conditions
 *
 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification with rights to further distribute source must include
 * the above Copyright Notice, the above License, this list of Conditions,
 * and the following Disclaimer and Export Compliance provision.  In addition,
 * Licensee must cause all Covered Code to which Licensee contributes to
 * contain a file documenting the changes Licensee made to create that Covered
 * Code and the date of any change.  Licensee must include in that file the
 * documentation of any changes made by any predecessor Licensee.  Licensee
 * must include a prominent statement that the modification is derived,
 * directly or indirectly, from Original Intel Code.
 *
 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification without rights to further distribute source must
 * include the following Disclaimer and Export Compliance provision in the
 * documentation and/or other materials provided with distribution.  In
 * addition, Licensee may not authorize further sublicense of source of any
 * portion of the Covered Code, and must include terms to the effect that the
 * license from Licensee to its licensee is limited to the intellectual
 * property embodied in the software Licensee provides to its licensee, and
 * not to intellectual property embodied in modifications its licensee may
 * make.
 *
 * 3.3. Redistribution of Executable. Redistribution in executable form of any
 * substantial portion of the Covered Code or modification must reproduce the
 * above Copyright Notice, and the following Disclaimer and Export Compliance
 * provision in the documentation and/or other materials provided with the
 * distribution.
 *
 * 3.4. Intel retains all right, title, and interest in and to the Original
 * Intel Code.
 *
 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 * Intel shall be used in advertising or otherwise to promote the sale, use or
 * other dealings in products derived from or relating to the Covered Code
 * without prior written authorization from Intel.
 *
 * 4. Disclaimer and Export Compliance
 *
 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 * LIMITED REMEDY.
 *
 * 4.3. Licensee shall not export, either directly or indirectly, any of this
 * software or system incorporating such software without first obtaining any
 * required license or other approval from the U. S. Department of Commerce or
 * any other agency or department of the United States Government.  In the
 * event Licensee exports any such software from the United States or
 * re-exports any such software from a foreign destination, Licensee shall
 * ensure that the distribution and export/re-export of the software is in
 * compliance with all laws, regulations, orders, or other restrictions of the
 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 * any of its subsidiaries will export/re-export any technical data, process,
 * software, or service, directly or indirectly, to any country for which the
 * United States government or any agency thereof requires an export license,
 * other governmental approval, or letter of assurance, without first obtaining
 * such license, approval or letter.
 *
 *****************************************************************************/

#include "acpisrc.h"


/* Opening signature of the Intel legal header */

char        *HeaderBegin = "/******************************************************************************\n *\n * 1. Copyright Notice";


/******************************************************************************
 *
 * FUNCTION:    AsMatchExactWord
 *
 * DESCRIPTION: Check previous and next characters for whitespace
 *
 ******************************************************************************/

BOOLEAN
AsMatchExactWord (
    char                    *Word,
    UINT32                  WordLength)
{
    char                    NextChar;
    char                    PrevChar;


    NextChar = Word[WordLength];
    PrevChar = * (Word -1);

    if (isalnum (NextChar) ||
        (NextChar == '_')  ||
        isalnum (PrevChar) ||
        (PrevChar == '_'))
    {
        return (FALSE);
    }

    return (TRUE);
}


/******************************************************************************
 *
 * FUNCTION:    AsPrint
 *
 * DESCRIPTION: Common formatted print
 *
 ******************************************************************************/

void
AsPrint (
    char                    *Message,
    UINT32                  Count,
    char                    *Filename)
{

    if (Gbl_QuietMode)
    {
        return;
    }

    printf ("-- %4u %28.28s : %s\n", Count, Message, Filename);
}


/******************************************************************************
 *
 * FUNCTION:    AsCheckAndSkipLiterals
 *
 * DESCRIPTION: Generic routine to skip comments and quoted string literals.
 *              Keeps a line count.
 *
 ******************************************************************************/

char *
AsCheckAndSkipLiterals (
    char                    *Buffer,
    UINT32                  *TotalLines)
{
    UINT32                  NewLines = 0;
    char                    *SubBuffer = Buffer;
    char                    *LiteralEnd;


    /* Ignore comments */

    if ((SubBuffer[0] == '/') &&
        (SubBuffer[1] == '*'))
    {
        LiteralEnd = strstr (SubBuffer, "*/");
        SubBuffer += 2;     /* Get past comment opening */

        if (!LiteralEnd)
        {
            return SubBuffer;
        }

        while (SubBuffer < LiteralEnd)
        {
            if (*SubBuffer == '\n')
            {
                NewLines++;
            }

            SubBuffer++;
        }

        SubBuffer += 2;     /* Get past comment close */
    }

    /* Ignore quoted strings */

    else if (*SubBuffer == '\"')
    {
        SubBuffer++;
        LiteralEnd = AsSkipPastChar (SubBuffer, '\"');
        if (!LiteralEnd)
        {
            return SubBuffer;
        }
    }

    if (TotalLines)
    {
        (*TotalLines) += NewLines;
    }
    return SubBuffer;
}


/******************************************************************************
 *
 * FUNCTION:    AsAsCheckForBraces
 *
 * DESCRIPTION: Check for an open brace after each if statement
 *
 ******************************************************************************/

void
AsCheckForBraces (
    char                    *Buffer,
    char                    *Filename)
{
    char                    *SubBuffer = Buffer;
    char                    *NextBrace;
    char                    *NextSemicolon;
    char                    *NextIf;
    UINT32                  TotalLines = 1;


    while (*SubBuffer)
    {

        SubBuffer = AsCheckAndSkipLiterals (SubBuffer, &TotalLines);

        if (*SubBuffer == '\n')
        {
            TotalLines++;
        }
        else if (!(strncmp (" if", SubBuffer, 3)))
        {
            SubBuffer += 2;
            NextBrace = strstr (SubBuffer, "{");
            NextSemicolon = strstr (SubBuffer, ";");
            NextIf = strstr (SubBuffer, " if");

            if ((!NextBrace) ||
               (NextSemicolon && (NextBrace > NextSemicolon)) ||
               (NextIf && (NextBrace > NextIf)))
            {
                Gbl_MissingBraces++;

                if (!Gbl_QuietMode)
                {
                    printf ("Missing braces for <if>, line %d: %s\n", TotalLines, Filename);
                }
            }
        }
        else if (!(strncmp (" else if", SubBuffer, 8)))
        {
            SubBuffer += 7;
            NextBrace = strstr (SubBuffer, "{");
            NextSemicolon = strstr (SubBuffer, ";");
            NextIf = strstr (SubBuffer, " if");

            if ((!NextBrace) ||
               (NextSemicolon && (NextBrace > NextSemicolon)) ||
               (NextIf && (NextBrace > NextIf)))
            {
                Gbl_MissingBraces++;

                if (!Gbl_QuietMode)
                {
                    printf ("Missing braces for <if>, line %d: %s\n", TotalLines, Filename);
                }
            }
        }
        else if (!(strncmp (" else", SubBuffer, 5)))
        {
            SubBuffer += 4;
            NextBrace = strstr (SubBuffer, "{");
            NextSemicolon = strstr (SubBuffer, ";");
            NextIf = strstr (SubBuffer, " if");

            if ((!NextBrace) ||
               (NextSemicolon && (NextBrace > NextSemicolon)) ||
               (NextIf && (NextBrace > NextIf)))
            {
                Gbl_MissingBraces++;

                if (!Gbl_QuietMode)
                {
                    printf ("Missing braces for <else>, line %d: %s\n", TotalLines, Filename);
                }
            }
        }

        SubBuffer++;
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsTrimLines
 *
 * DESCRIPTION: Remove extra blanks from the end of source lines.  Does not
 *              check for tabs.
 *
 ******************************************************************************/

void
AsTrimLines (
    char                    *Buffer,
    char                    *Filename)
{
    char                    *SubBuffer = Buffer;
    char                    *StartWhiteSpace = NULL;
    UINT32                  SpaceCount = 0;


    while (*SubBuffer)
    {
        while (*SubBuffer != '\n')
        {
            if (!*SubBuffer)
            {
                goto Exit;
            }

            if (*SubBuffer == ' ')
            {
                if (!StartWhiteSpace)
                {
                    StartWhiteSpace = SubBuffer;
                }
            }
            else
            {
                StartWhiteSpace = NULL;
            }

            SubBuffer++;
        }

        if (StartWhiteSpace)
        {
            SpaceCount += (SubBuffer - StartWhiteSpace);

            /* Remove the spaces */

            SubBuffer = AsRemoveData (StartWhiteSpace, SubBuffer);
            StartWhiteSpace = NULL;
        }

        SubBuffer++;
    }


Exit:
    if (SpaceCount)
    {
        Gbl_MadeChanges = TRUE;
        AsPrint ("Extraneous spaces removed", SpaceCount, Filename);
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsTrimWhitespace
 *
 * DESCRIPTION: Remove "excess" blank lines - any more than 2 blank lines.
 *              this can happen during the translation when lines are removed.
 *
 ******************************************************************************/

void
AsTrimWhitespace (
    char                    *Buffer)
{
    int                     ReplaceCount = 1;


    while (ReplaceCount)
    {
        ReplaceCount = AsReplaceString ("\n\n\n\n", "\n\n\n", REPLACE_SUBSTRINGS, Buffer);
    }
}


/******************************************************************************
 *
 * FUNCTION:    AsReplaceHeader
 *
 * DESCRIPTION: Replace the default Intel legal header with a new header
 *
 ******************************************************************************/

void
AsReplaceHeader (
    char                    *Buffer,
    char                    *NewHeader)
{
    char                    *SubBuffer;
    char                    *TokenEnd;


    /* Find the original header */

    SubBuffer = strstr (Buffer, HeaderBegin);
    if (!SubBuffer)
    {
        return;
    }

    /* Find the end of the original header */

    TokenEnd = strstr (SubBuffer, "*/");
    TokenEnd = AsSkipPastChar (TokenEnd, '\n');

    /* Delete old header, insert new one */

    AsReplaceData (SubBuffer, TokenEnd - SubBuffer, NewHeader, strlen (NewHeader));
}


/******************************************************************************
 *
 * FUNCTION:    AsReplaceString
 *
 * DESCRIPTION: Replace all instances of a target string with a replacement
 *              string.  Returns count of the strings replaced.
 *
 ******************************************************************************/

int
AsReplaceString (
    char                    *Target,
    char                    *Replacement,
    UINT8                   Type,
    char                    *Buffer)
{
    char                    *SubString1;
    char                    *SubString2;
    char                    *SubBuffer;
    int                     TargetLength;
    int                     ReplacementLength;
    int                     ReplaceCount = 0;


    TargetLength = strlen (Target);
    ReplacementLength = strlen (Replacement);

    SubBuffer = Buffer;
    SubString1 = Buffer;

    while (SubString1)
    {
        /* Find the target string */

        SubString1 = strstr (SubBuffer, Target);
        if (!SubString1)