fbconf_xorg/xf86/Module.c

/*
 *
 * Copyright (c) 1997  Metro Link Incorporated
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Except as contained in this notice, the name of the Metro Link shall not be
 * used in advertising or otherwise to promote the sale, use or other dealings
 * in this Software without prior written authorization from Metro Link.
 *
 */
/*
 * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of the copyright holder(s)
 * and author(s) shall not be used in advertising or otherwise to promote
 * the sale, use or other dealings in this Software without prior written
 * authorization from the copyright holder(s) and author(s).
 */


/* View/edit this file with tab stops set to 4 */

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif

#include "xf86Parser.h"
#include "xf86tokens.h"
#include "Configint.h"
#include "fields.h"     /* Config file output line fields */

extern LexRec val;

static xf86ConfigSymTabRec SubModuleTab[] =
{
    {ENDSUBSECTION, "endsubsection"},
    {OPTION, "option"},
    {-1, ""},
};

static xf86ConfigSymTabRec ModuleTab[] =
{
    {ENDSECTION, "endsection"},
    {LOAD, "load"},
    {LOAD_DRIVER, "loaddriver"},
    {SUBSECTION, "subsection"},
    {-1, ""},
};

#define CLEANUP xf86freeModules

XF86LoadPtr
xf86parseModuleSubSection (XF86LoadPtr head, char *name)
{
    int token;
    parsePrologue (XF86LoadPtr, XF86LoadRec)

    ptr->load_name = name;
    ptr->load_type = XF86_LOAD_MODULE;
        ptr->ignore    = 0;
    ptr->load_opt  = NULL;
    ptr->list.next = NULL;

    while ((token = xf86getToken (SubModuleTab)) != ENDSUBSECTION)
    {
        switch (token)
        {
        case COMMENT:
            ptr->load_comment = xf86addComment(ptr->load_comment, val.str);
            break;
        case OPTION:
            ptr->load_opt = xf86parseOption(ptr->load_opt);
            break;
        case EOF_TOKEN:
            xf86parseError (UNEXPECTED_EOF_MSG, NULL);
            xf86conffree(ptr);
            return NULL;
        default:
            xf86parseError (INVALID_KEYWORD_MSG, xf86tokenString ());
            xf86conffree(ptr);
            return NULL;
            break;
        }

    }

    return ((XF86LoadPtr) xf86addListItem ((glp) head, (glp) ptr));
}

XF86ConfModulePtr
xf86parseModuleSection (void)
{
    int token;
    parsePrologue (XF86ConfModulePtr, XF86ConfModuleRec)

    while ((token = xf86getToken (ModuleTab)) != ENDSECTION)
    {
        switch (token)
        {
        case COMMENT:
            ptr->mod_comment = xf86addComment(ptr->mod_comment, val.str);
            break;
        case LOAD:
            if (xf86getSubToken (&(ptr->mod_comment)) != STRING)
                Error (QUOTE_MSG, "Load");
            ptr->mod_load_lst =
                xf86addNewLoadDirective (ptr->mod_load_lst, val.str,
                                     XF86_LOAD_MODULE, NULL);
            break;
        case LOAD_DRIVER:
            if (xf86getSubToken (&(ptr->mod_comment)) != STRING)
                Error (QUOTE_MSG, "LoadDriver");
            ptr->mod_load_lst =
                xf86addNewLoadDirective (ptr->mod_load_lst, val.str,
                                     XF86_LOAD_DRIVER, NULL);
            break;
        case SUBSECTION:
            if (xf86getSubToken (&(ptr->mod_comment)) != STRING)
                        Error (QUOTE_MSG, "SubSection");
            ptr->mod_load_lst =
                xf86parseModuleSubSection (ptr->mod_load_lst, val.str);
            break;
        case EOF_TOKEN:
            Error (UNEXPECTED_EOF_MSG, NULL);
            break;
        default:
            Error (INVALID_KEYWORD_MSG, xf86tokenString ());
            break;
        }
    }

#ifdef DEBUG
    printf ("Module section parsed\n");
#endif

    return ptr;
}

#undef CLEANUP

void
xf86printModuleSection (FILE * cf, XF86ConfModulePtr ptr)
{
    XF86LoadPtr lptr;

    if (ptr == NULL)
        return;

    fprintf (cf, "Section \"Module\"\n");

    if (ptr->mod_comment)
        fprintf(cf, "%s", ptr->mod_comment);
    for (lptr = ptr->mod_load_lst; lptr; lptr = lptr->list.next)
    {
        switch (lptr->load_type)
        {
        case XF86_LOAD_MODULE:
            if( lptr->load_opt == NULL ) {
                fprintf (cf, "\tLoad  \"%s\"", lptr->load_name);
                if (lptr->load_comment)
                    fprintf(cf, "%s", lptr->load_comment);
                else
                    fputc('\n', cf);
            }
            else
            {
                fprintf (cf, "\tSubSection \"%s\"\n", lptr->load_name);
                if (lptr->load_comment)
                    fprintf(cf, "%s", lptr->load_comment);
                xf86printOptionList(cf, lptr->load_opt, xf86whitespace_2);
                fprintf (cf, "\tEndSubSection\n");
            }
            break;
        case XF86_LOAD_DRIVER:
            fprintf (cf, "\tLoadDriver  \"%s\"", lptr->load_name);
                if (lptr->load_comment)
                    fprintf(cf, "%s", lptr->load_comment);
                else
                    fputc('\n', cf);
            break;
#if 0
        default:
            fprintf (cf, "#\tUnknown type  \"%s\"\n", lptr->load_name);
            break;
#endif
        }
    }
    fprintf (cf, "EndSection\n\n");
}

XF86LoadPtr
xf86addNewLoadDirective (XF86LoadPtr head, char *name, int type, XF86OptionPtr opts)
{
    XF86LoadPtr new;
    int token;

    new = xf86confcalloc (1, sizeof (XF86LoadRec));
    new->load_name = name;
    new->load_type = type;
    new->load_opt  = opts;
        new->ignore    = 0;
    new->list.next = NULL;

    if ((token = xf86getToken(NULL)) == COMMENT)
        new->load_comment = xf86addComment(new->load_comment, val.str);
    else
        xf86unGetToken(token);

    return ((XF86LoadPtr) xf86addListItem ((glp) head, (glp) new));
}

void
xf86freeModules (XF86ConfModulePtr ptr)
{
    XF86LoadPtr lptr;
    XF86LoadPtr prev;

    if (ptr == NULL)
        return;
    lptr = ptr->mod_load_lst;
    while (lptr)
    {
        TestFree (lptr->load_name);
        TestFree (lptr->load_comment);
        prev = lptr;
        lptr = lptr->list.next;
        xf86conffree (prev);
    }
    TestFree (ptr->mod_comment);
    xf86conffree (ptr);
}