/* $XFree86: xc/programs/Xserver/hw/xfree86/parser/Monitor.c,v 1.33 2006/08/09 20:53:16 dawes Exp $ */
/* 
 * 
 * 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) 1997-2006 by The XFree86 Project, Inc.
 * All rights reserved.
 *
 * 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:
 *
 *   1.  Redistributions of source code must retain the above copyright
 *       notice, this list of conditions, and the following disclaimer.
 *
 *   2.  Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer
 *       in the documentation and/or other materials provided with the
 *       distribution, and in the same place and form as other copyright,
 *       license and disclaimer information.
 *
 *   3.  The end-user documentation included with the redistribution,
 *       if any, must include the following acknowledgment: "This product
 *       includes software developed by The XFree86 Project, Inc
 *       (http://www.xfree86.org/) and its contributors", in the same
 *       place and form as other third-party acknowledgments.  Alternately,
 *       this acknowledgment may appear in the software itself, in the
 *       same form and location as other such third-party acknowledgments.
 *
 *   4.  Except as contained in this notice, the name of The XFree86
 *       Project, Inc 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 XFree86 Project, Inc.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE XFREE86 PROJECT, INC OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/*
 * Copyright © 2004, 2005 X-Oz Technologies.
 * All rights reserved.
 *
 * 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:
 * 
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions, and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 * 
 *  3. The end-user documentation included with the redistribution,
 *     if any, must include the following acknowledgment: "This product
 *     includes software developed by X-Oz Technologies
 *     (http://www.x-oz.com/)."  Alternately, this acknowledgment may
 *     appear in the software itself, if and wherever such third-party
 *     acknowledgments normally appear.
 *
 *  4. Except as contained in this notice, the name of X-Oz
 *     Technologies shall not be used in advertising or otherwise to
 *     promote the sale, use or other dealings in this Software without
 *     prior written authorization from X-Oz Technologies.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL X-OZ TECHNOLOGIES OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */


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

#include "xf86Parser.h"
#include "xf86tokens.h"
#include "Configint.h"

extern LexRec val;

static xf86ConfigSymTabRec MonitorTab[] =
{
	{ENDSECTION, "endsection"},
	{IDENTIFIER, "identifier"},
	{VENDOR, "vendorname"},
	{MODEL, "modelname"},
	{USEMODES, "usemodes"},
	{MODELINE, "modeline"},
	{DISPLAYSIZE, "displaysize"},
	{HORIZSYNC, "horizsync"},
	{VERTREFRESH, "vertrefresh"},
	{MODE, "mode"},
	{GAMMA, "gamma"},
	{OPTION, "option"},
	{-1, ""},
};

static xf86ConfigSymTabRec ModesTab[] =
{
	{ENDSECTION, "endsection"},
	{IDENTIFIER, "identifier"},
	{MODELINE, "modeline"},
	{MODE, "mode"},
	{OPTION, "option"},
	{-1, ""},
};

static xf86ConfigSymTabRec TimingTab[] =
{
	{TT_INTERLACE, "interlace"},
	{TT_PHSYNC, "+hsync"},
	{TT_NHSYNC, "-hsync"},
	{TT_PVSYNC, "+vsync"},
	{TT_NVSYNC, "-vsync"},
	{TT_CSYNC, "composite"},
	{TT_PCSYNC, "+csync"},
	{TT_NCSYNC, "-csync"},
	{TT_DBLSCAN, "doublescan"},
	{TT_HSKEW, "hskew"},
	{TT_BCAST, "bcast"},
	{TT_VSCAN, "vscan"},
	{TT_CUSTOM, "CUSTOM"},
	{-1, ""},
};

static xf86ConfigSymTabRec ModeTab[] =
{
	{DOTCLOCK, "dotclock"},
	{HTIMINGS, "htimings"},
	{VTIMINGS, "vtimings"},
	{FLAGS, "flags"},
	{HSKEW, "hskew"},
	{BCAST, "bcast"},
	{VSCAN, "vscan"},
	{ENDMODE, "endmode"},
	{-1, ""},
};

#define CLEANUP xf86freeModeLineList

XF86ConfModeLinePtr
xf86parseModeLine (void)
{
	int token;
	parsePrologue (XF86ConfModeLinePtr, XF86ConfModeLineRec)

	/* Identifier */
	if (xf86getSubToken (&(ptr->ml_comment)) != STRING)
		Error ("ModeLine identifier expected", NULL);
	ptr->ml_identifier = xf86configStrdup(val.str);

	/* DotClock */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine dotclock expected", NULL);
	ptr->ml_clock = (int) (val.realnum * 1000.0 + 0.5);

	/* HDisplay */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine Hdisplay expected", NULL);
	ptr->ml_hdisplay = val.num;

	/* HSyncStart */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine HSyncStart expected", NULL);
	ptr->ml_hsyncstart = val.num;

	/* HSyncEnd */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine HSyncEnd expected", NULL);
	ptr->ml_hsyncend = val.num;

	/* HTotal */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine HTotal expected", NULL);
	ptr->ml_htotal = val.num;

	/* VDisplay */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine Vdisplay expected", NULL);
	ptr->ml_vdisplay = val.num;

	/* VSyncStart */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine VSyncStart expected", NULL);
	ptr->ml_vsyncstart = val.num;

	/* VSyncEnd */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine VSyncEnd expected", NULL);
	ptr->ml_vsyncend = val.num;

	/* VTotal */
	if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
		Error ("ModeLine VTotal expected", NULL);
	ptr->ml_vtotal = val.num;

	token = xf86getSubTokenWithTab (&(ptr->ml_comment), TimingTab);
	while ((token == TT_INTERLACE) || (token == TT_PHSYNC) ||
		   (token == TT_NHSYNC) || (token == TT_PVSYNC) ||
		   (token == TT_NVSYNC) || (token == TT_CSYNC) ||
		   (token == TT_PCSYNC) || (token == TT_NCSYNC) ||
		   (token == TT_DBLSCAN) || (token == TT_HSKEW) ||
		   (token == TT_VSCAN) || (token == TT_BCAST))
	{
		switch (token)
		{

		case TT_INTERLACE:
			ptr->ml_flags |= XF86CONF_INTERLACE;
			break;
		case TT_PHSYNC:
			ptr->ml_flags |= XF86CONF_PHSYNC;
			break;
		case TT_NHSYNC:
			ptr->ml_flags |= XF86CONF_NHSYNC;
			break;
		case TT_PVSYNC:
			ptr->ml_flags |= XF86CONF_PVSYNC;
			break;
		case TT_NVSYNC:
			ptr->ml_flags |= XF86CONF_NVSYNC;
			break;
		case TT_CSYNC:
			ptr->ml_flags |= XF86CONF_CSYNC;
			break;
		case TT_PCSYNC:
			ptr->ml_flags |= XF86CONF_PCSYNC;
			break;
		case TT_NCSYNC:
			ptr->ml_flags |= XF86CONF_NCSYNC;
			break;
		case TT_DBLSCAN:
			ptr->ml_flags |= XF86CONF_DBLSCAN;
			break;
		case TT_HSKEW:
			if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
				Error (NUMBER_MSG, "Hskew");
			ptr->ml_hskew = val.num;
			ptr->ml_flags |= XF86CONF_HSKEW;
			break;
		case TT_BCAST:
			ptr->ml_flags |= XF86CONF_BCAST;
			break;
		case TT_VSCAN:
			if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
				Error (NUMBER_MSG, "Vscan");
			ptr->ml_vscan = val.num;
			ptr->ml_flags |= XF86CONF_VSCAN;
			break;
		case TT_CUSTOM:
			ptr->ml_flags |= XF86CONF_CUSTOM;
			break;
		case EOF_TOKEN:
			Error (UNEXPECTED_EOF_MSG, NULL);
			break;
		default:
			Error (INVALID_KEYWORD_MSG, xf86tokenString ());
			break;
		}
		token = xf86getSubTokenWithTab (&(ptr->ml_comment), TimingTab);
	}
	xf86unGetToken (token);

#ifdef DEBUG
	printf ("ModeLine parsed\n");
#endif
	return (ptr);
}

XF86ConfModeLinePtr
xf86parseVerboseMode (void)
{
	int token, token2;
	int had_dotclock = 0, had_htimings = 0, had_vtimings = 0;
	parsePrologue (XF86ConfModeLinePtr, XF86ConfModeLineRec)

		if (xf86getSubToken (&(ptr->ml_comment)) != STRING)
		Error ("Mode name expected", NULL);
	ptr->ml_identifier = xf86configStrdup(val.str);
	while ((token = xf86getToken (ModeTab)) != ENDMODE)
	{
		switch (token)
		{
		case COMMENT:
			ptr->ml_comment = xf86addComment(ptr->ml_comment, val.str);
			break;
		case DOTCLOCK:
			if ((token = xf86getSubToken (&(ptr->ml_comment))) != NUMBER)
				Error (NUMBER_MSG, "DotClock");
			ptr->ml_clock = (int) (val.realnum * 1000.0 + 0.5);
			had_dotclock = 1;
			break;
		case HTIMINGS:
			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_hdisplay = val.num;
			else
				Error ("Horizontal display expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_hsyncstart = val.num;
			else
				Error ("Horizontal sync start expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_hsyncend = val.num;
			else
				Error ("Horizontal sync end expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_htotal = val.num;
			else
				Error ("Horizontal total expected", NULL);
			had_htimings = 1;
			break;
		case VTIMINGS:
			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_vdisplay = val.num;
			else
				Error ("Vertical display expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_vsyncstart = val.num;
			else
				Error ("Vertical sync start expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_vsyncend = val.num;
			else
				Error ("Vertical sync end expected", NULL);

			if (xf86getSubToken (&(ptr->ml_comment)) == NUMBER)
				ptr->ml_vtotal = val.num;
			else
				Error ("Vertical total expected", NULL);
			had_vtimings = 1;
			break;
		case FLAGS:
			token = xf86getSubToken (&(ptr->ml_comment));
			if (token != STRING)
				Error (QUOTE_MSG, "Flags");
			while (token == STRING)
			{
				token2 = xf86getStringToken (TimingTab);
				switch (token2)
				{
				case TT_INTERLACE:
					ptr->ml_flags |= XF86CONF_INTERLACE;
					break;
				case TT_PHSYNC:
					ptr->ml_flags |= XF86CONF_PHSYNC;
					break;
				case TT_NHSYNC:
					ptr->ml_flags |= XF86CONF_NHSYNC;
					break;
				case TT_PVSYNC:
					ptr->ml_flags |= XF86CONF_PVSYNC;
					break;
				case TT_NVSYNC:
					ptr->ml_flags |= XF86CONF_NVSYNC;
					break;
				case TT_CSYNC:
					ptr->ml_flags |= XF86CONF_CSYNC;
					break;
				case TT_PCSYNC:
					ptr->ml_flags |= XF86CONF_PCSYNC;
					break;
				case TT_NCSYNC:
					ptr->ml_flags |= XF86CONF_NCSYNC;
					break;
				case TT_DBLSCAN:
					ptr->ml_flags |= XF86CONF_DBLSCAN;
					break;
				case TT_CUSTOM:
					ptr->ml_flags |= XF86CONF_CUSTOM;
					break;
				case EOF_TOKEN:
					Error (UNEXPECTED_EOF_MSG, NULL);
					break;
				default:
					Error ("Unknown flag string", NULL);
					break;
				}
				token = xf86getSubToken (&(ptr->ml_comment));
			}
			xf86unGetToken (token);
			break;
		case HSKEW:
			if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
				Error ("Horizontal skew expected", NULL);
			ptr->ml_flags |= XF86CONF_HSKEW;
			ptr->ml_hskew = val.num;
			break;
		case VSCAN:
			if (xf86getSubToken (&(ptr->ml_comment)) != NUMBER)
				Error ("Vertical scan count expected", NULL);
			ptr->ml_flags |= XF86CONF_VSCAN;
			ptr->ml_vscan = val.num;
			break;
		case EOF_TOKEN:
			Error (UNEXPECTED_EOF_MSG, NULL);
			break;
		default:
			Error ("Unexepcted token in verbose \"Mode\" entry\n", NULL);
		}
	}
	if (!had_dotclock)
		Error ("the dotclock is missing", NULL);
	if (!had_htimings)
		Error ("the horizontal timings are missing", NULL);
	if (!had_vtimings)
		Error ("the vertical timings are missing", NULL);

#ifdef DEBUG
	printf ("Verbose Mode parsed\n");
#endif
	return (ptr);
}

#undef CLEANUP

#define CLEANUP xf86freeMonitorList

XF86ConfMonitorPtr
xf86parseMonitorSection (void)
{
	int has_ident = FALSE;
	int token;
	parsePrologue (XF86ConfMonitorPtr, XF86ConfMonitorRec)

		while ((token = xf86getToken (MonitorTab)) != ENDSECTION)
	{
		switch (token)
		{
		case COMMENT:
			ptr->mon_comment = xf86addComment(ptr->mon_comment, val.str);
			break;
		case IDENTIFIER:
			if (xf86getSubToken (&(ptr->mon_comment)) != STRING)
				Error (QUOTE_MSG, "Identifier");
			if (has_ident == TRUE)
				Error (MULTIPLE_MSG, "Identifier");
			ptr->mon_identifier = xf86configStrdup(val.str);
			has_ident = TRUE;
			break;
		case VENDOR:
			if (xf86getSubToken (&(ptr->mon_comment)) != STRING)
				Error (QUOTE_MSG, "Vendor");
			ptr->mon_vendor = xf86configStrdup(val.str);
			break;
		case MODEL:
			if (xf86getSubToken (&(ptr->mon_comment)) != STRING)
				Error (QUOTE_MSG, "ModelName");
			ptr->mon_modelname = xf86configStrdup(val.str);
			break;
		case MODE:
			HANDLE_LIST (mon_modeline_lst, xf86parseVerboseMode,
						 XF86ConfModeLinePtr);
			break;
		case MODELINE:
			HANDLE_LIST (mon_modeline_lst, xf86parseModeLine,
						 XF86ConfModeLinePtr);
			break;
		case DISPLAYSIZE:
			if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER)
				Error (DISPLAYSIZE_MSG, NULL);
			ptr->mon_width = val.realnum;
			if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER)
				Error (DISPLAYSIZE_MSG, NULL);
			ptr->mon_height = val.realnum;
			break;

		case HORIZSYNC:
			if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER)
				Error (HORIZSYNC_MSG, NULL);
			do {
				ptr->mon_hsync[ptr->mon_n_hsync].lo = val.realnum;
				switch (token = xf86getSubToken (&(ptr->mon_comment)))
				{
					case COMMA:
						ptr->mon_hsync[ptr->mon_n_hsync].hi =
						ptr->mon_hsync[ptr->mon_n_hsync].lo;
						break;
					case DASH:
						if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER ||
						    (float)val.realnum < ptr->mon_hsync[ptr->mon_n_hsync].lo)
							Error (HORIZSYNC_MSG, NULL);
						ptr->mon_hsync[ptr->mon_n_hsync].hi = val.realnum;
						if ((token = xf86getSubToken (&(ptr->mon_comment))) == COMMA)
							break;
						ptr->mon_n_hsync++;
						goto HorizDone;
					default:
						/* We cannot currently know if a '\n' was found,
						 * or this is a real error
						 */
						ptr->mon_hsync[ptr->mon_n_hsync].hi =
						ptr->mon_hsync[ptr->mon_n_hsync].lo;
						ptr->mon_n_hsync++;
						goto HorizDone;
				}
				if (ptr->mon_n_hsync >= CONF_MAX_HSYNC)
					Error ("Sorry. Too many horizontal sync intervals.", NULL);
				ptr->mon_n_hsync++;
			} while ((token = xf86getSubToken (&(ptr->mon_comment))) == NUMBER);
HorizDone:
			xf86unGetToken (token);
			break;

		case VERTREFRESH:
			if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER)
				Error (VERTREFRESH_MSG, NULL);
			do {
				ptr->mon_vrefresh[ptr->mon_n_vrefresh].lo = val.realnum;
				switch (token = xf86getSubToken (&(ptr->mon_comment)))
				{
					case COMMA:
						ptr->mon_vrefresh[ptr->mon_n_vrefresh].hi =
						ptr->mon_vrefresh[ptr->mon_n_vrefresh].lo;
						break;
					case DASH:
						if (xf86getSubToken (&(ptr->mon_comment)) != NUMBER ||
						    (float)val.realnum < ptr->mon_vrefresh[ptr->mon_n_vrefresh].lo)
							Error (VERTREFRESH_MSG, NULL);
						ptr->mon_vrefresh[ptr->mon_n_vrefresh].hi = val.realnum;
						if ((token = xf86getSubToken (&(ptr->mon_comment))) == COMMA)
							break;
						ptr->mon_n_vrefresh++;
						goto VertDone;
					default:
						/* We cannot currently know if a '\n' was found,
						 * or this is a real error
						 */
						ptr->mon_vrefresh[ptr->mon_n_vrefresh].hi =
						ptr->mon_vrefresh[ptr->mon_n_vrefresh].lo;
						ptr->mon_n_vrefresh++;
						goto VertDone;
				}
				if (ptr->mon_n_vrefresh >= CONF_MAX_VREFRESH)
					Error ("Sorry. Too many vertical refresh intervals.", NULL);
				ptr->mon_n_vrefresh++;
			} while ((token = xf86getSubToken (&(ptr->mon_comment))) == NUMBER);
VertDone:
			xf86unGetToken (token);
			break;

		case GAMMA:
			if( xf86getSubToken (&(ptr->mon_comment)) != NUMBER )
			{
				Error (INVALID_GAMMA_MSG, NULL);
			}
			else
			{
				ptr->mon_gamma_red = ptr->mon_gamma_green =
					ptr->mon_gamma_blue = val.realnum;
				if( xf86getSubToken (&(ptr->mon_comment)) == NUMBER )
				{
					ptr->mon_gamma_green = val.realnum;
					if( xf86getSubToken (&(ptr->mon_comment)) == NUMBER )
					{
						ptr->mon_gamma_blue = val.realnum;
					}
					else
					{
						Error (INVALID_GAMMA_MSG, NULL);
					}
				}
				else
					xf86unGetToken (token);
			}
			break;
		case OPTION:
			ptr->mon_option_lst = xf86parseOption(ptr->mon_option_lst);
			break;
		case USEMODES:
		        {
				XF86ConfModesLinkPtr mptr;

				if ((token = xf86getSubToken (&(ptr->mon_comment))) != STRING)
					Error (QUOTE_MSG, "UseModes");

				/* add to the end of the list of modes sections 
				   referenced here */
				mptr = xf86confcalloc (1, sizeof (XF86ConfModesLinkRec));
				mptr->list.next = NULL;
				mptr->ml_modes_str = xf86configStrdup(val.str);
				mptr->ml_modes = NULL;
				ptr->mon_modes_sect_lst = (XF86ConfModesLinkPtr)
					xf86addListItem((GenericListPtr)ptr->mon_modes_sect_lst,
						    (GenericListPtr)mptr);
			}
			break;
		case EOF_TOKEN:
			Error (UNEXPECTED_EOF_MSG, NULL);
			break;
		default:
			xf86parseError (INVALID_KEYWORD_MSG, xf86tokenString ());
			CLEANUP (ptr);
			return NULL;
		}
	}

	if (!has_ident)
		Error (NO_IDENT_MSG, NULL);

#ifdef DEBUG
	printf ("Monitor section parsed\n");
#endif
	return ptr;
}

#undef CLEANUP
#define CLEANUP xf86freeModesList

XF86ConfModesPtr
xf86parseModesSection (void)
{
	int has_ident = FALSE;
	int token;
	parsePrologue (XF86ConfModesPtr, XF86ConfModesRec)

	while ((token = xf86getToken (ModesTab)) != ENDSECTION)
	{
		switch (token)
		{
		case COMMENT:
			ptr->modes_comment = xf86addComment(ptr->modes_comment, val.str);
			break;
		case IDENTIFIER:
			if (xf86getSubToken (&(ptr->modes_comment)) != STRING)
				Error (QUOTE_MSG, "Identifier");
			if (has_ident == TRUE)
				Error (MULTIPLE_MSG, "Identifier");
			ptr->modes_identifier = xf86configStrdup(val.str);
			has_ident = TRUE;
			break;
		case MODE:
			HANDLE_LIST (mon_modeline_lst, xf86parseVerboseMode,
						 XF86ConfModeLinePtr);
			break;
		case MODELINE:
			HANDLE_LIST (mon_modeline_lst, xf86parseModeLine,
						 XF86ConfModeLinePtr);
			break;
		case OPTION:
			ptr->modes_option_lst = xf86parseOption(ptr->modes_option_lst);
			break;
		default:
			xf86parseError (INVALID_KEYWORD_MSG, xf86tokenString ());
			CLEANUP (ptr);
			return NULL;
		}
	}

	if (!has_ident)
		Error (NO_IDENT_MSG, NULL);

#ifdef DEBUG
	printf ("Modes section parsed\n");
#endif
	return ptr;
}

#undef CLEANUP

void
xf86printMonitorSection (FILE * cf, XF86ConfMonitorPtr ptr)
{
	int i;
	XF86ConfModeLinePtr mlptr;
	XF86ConfModesLinkPtr mptr;

	while (ptr)
	{
		mptr = ptr->mon_modes_sect_lst;
		fprintf (cf, "Section \"Monitor\"\n");
		if (ptr->mon_comment)
			fprintf (cf, "%s", ptr->mon_comment);
		if (ptr->mon_identifier)
			fprintf (cf, "\tIdentifier   \"%s\"\n", ptr->mon_identifier);
		if (ptr->mon_vendor)
			fprintf (cf, "\tVendorName   \"%s\"\n", ptr->mon_vendor);
		if (ptr->mon_modelname)
			fprintf (cf, "\tModelName    \"%s\"\n", ptr->mon_modelname);
		while (mptr) {
			fprintf (cf, "\tUseModes     \"%s\"\n", mptr->ml_modes_str);
			mptr = mptr->list.next;
		}
		if (ptr->mon_width)
			fprintf (cf, "\tDisplaySize  %d\t%d\n",
					 ptr->mon_width,
					 ptr->mon_height);
		for (i = 0; i < ptr->mon_n_hsync; i++)
		{
			fprintf (cf, "\tHorizSync    %2.1f - %2.1f\n",
					 ptr->mon_hsync[i].lo,
					 ptr->mon_hsync[i].hi);
		}
		for (i = 0; i < ptr->mon_n_vrefresh; i++)
		{
			fprintf (cf, "\tVertRefresh  %2.1f - %2.1f\n",
					 ptr->mon_vrefresh[i].lo,
					 ptr->mon_vrefresh[i].hi);
		}
		if (ptr->mon_gamma_red) {
			if (ptr->mon_gamma_red == ptr->mon_gamma_green
				&& ptr->mon_gamma_red == ptr->mon_gamma_blue)
			{
				fprintf (cf, "\tGamma        %.4g\n",
					ptr->mon_gamma_red);
			} else {
				fprintf (cf, "\tGamma        %.4g %.4g %.4g\n",
					ptr->mon_gamma_red,
					ptr->mon_gamma_green,
					ptr->mon_gamma_blue);
			}
		}
		for (mlptr = ptr->mon_modeline_lst; mlptr; mlptr = mlptr->list.next)
		{
			fprintf (cf, "\tModeLine     \"%s\" %2.1f ",
					 mlptr->ml_identifier, mlptr->ml_clock / 1000.0);
			fprintf (cf, "%d %d %d %d %d %d %d %d",
					 mlptr->ml_hdisplay, mlptr->ml_hsyncstart,
					 mlptr->ml_hsyncend, mlptr->ml_htotal,
					 mlptr->ml_vdisplay, mlptr->ml_vsyncstart,
					 mlptr->ml_vsyncend, mlptr->ml_vtotal);
			if (mlptr->ml_flags & XF86CONF_PHSYNC)
				fprintf (cf, " +hsync");
			if (mlptr->ml_flags & XF86CONF_NHSYNC)
				fprintf (cf, " -hsync");
			if (mlptr->ml_flags & XF86CONF_PVSYNC)
				fprintf (cf, " +vsync");
			if (mlptr->ml_flags & XF86CONF_NVSYNC)
				fprintf (cf, " -vsync");
			if (mlptr->ml_flags & XF86CONF_INTERLACE)
				fprintf (cf, " interlace");
			if (mlptr->ml_flags & XF86CONF_CSYNC)
				fprintf (cf, " composite");
			if (mlptr->ml_flags & XF86CONF_PCSYNC)
				fprintf (cf, " +csync");
			if (mlptr->ml_flags & XF86CONF_NCSYNC)
				fprintf (cf, " -csync");
			if (mlptr->ml_flags & XF86CONF_DBLSCAN)
				fprintf (cf, " doublescan");
			if (mlptr->ml_flags & XF86CONF_HSKEW)
				fprintf (cf, " hskew %d", mlptr->ml_hskew);
			if (mlptr->ml_flags & XF86CONF_BCAST)
				fprintf (cf, " bcast");
			fprintf (cf, "\n");
		}
		xf86printOptionList(cf, ptr->mon_option_lst, 1);
		fprintf (cf, "EndSection\n\n");
		ptr = ptr->list.next;
	}
}

void
xf86printModesSection (FILE * cf, XF86ConfModesPtr ptr)
{
	XF86ConfModeLinePtr mlptr;

	while (ptr)
	{
		fprintf (cf, "Section \"Modes\"\n");
		if (ptr->modes_comment)
			fprintf (cf, "%s", ptr->modes_comment);
		if (ptr->modes_identifier)
			fprintf (cf, "\tIdentifier     \"%s\"\n", ptr->modes_identifier);
		for (mlptr = ptr->mon_modeline_lst; mlptr; mlptr = mlptr->list.next)
		{
			fprintf (cf, "\tModeLine     \"%s\" %2.1f ",
					 mlptr->ml_identifier, mlptr->ml_clock / 1000.0);
			fprintf (cf, "%d %d %d %d %d %d %d %d",
					 mlptr->ml_hdisplay, mlptr->ml_hsyncstart,
					 mlptr->ml_hsyncend, mlptr->ml_htotal,
					 mlptr->ml_vdisplay, mlptr->ml_vsyncstart,
					 mlptr->ml_vsyncend, mlptr->ml_vtotal);
			if (mlptr->ml_flags & XF86CONF_PHSYNC)
				fprintf (cf, " +hsync");
			if (mlptr->ml_flags & XF86CONF_NHSYNC)
				fprintf (cf, " -hsync");
			if (mlptr->ml_flags & XF86CONF_PVSYNC)
				fprintf (cf, " +vsync");
			if (mlptr->ml_flags & XF86CONF_NVSYNC)
				fprintf (cf, " -vsync");
			if (mlptr->ml_flags & XF86CONF_INTERLACE)
				fprintf (cf, " interlace");
			if (mlptr->ml_flags & XF86CONF_CSYNC)
				fprintf (cf, " composite");
			if (mlptr->ml_flags & XF86CONF_PCSYNC)
				fprintf (cf, " +csync");
			if (mlptr->ml_flags & XF86CONF_NCSYNC)
				fprintf (cf, " -csync");
			if (mlptr->ml_flags & XF86CONF_DBLSCAN)
				fprintf (cf, " doublescan");
			if (mlptr->ml_flags & XF86CONF_HSKEW)
				fprintf (cf, " hskew %d", mlptr->ml_hskew);
			if (mlptr->ml_flags & XF86CONF_VSCAN)
				fprintf (cf, " vscan %d", mlptr->ml_vscan);
			if (mlptr->ml_flags & XF86CONF_BCAST)
				fprintf (cf, " bcast");
			if (mlptr->ml_comment)
				fprintf (cf, "%s", mlptr->ml_comment);
			else
				fprintf (cf, "\n");
		}
		xf86printOptionList(cf, ptr->modes_option_lst, 1);
		fprintf (cf, "EndSection\n\n");
		ptr = ptr->list.next;
	}
}

void
xf86freeMonitorList (XF86ConfMonitorPtr ptr)
{
	XF86ConfMonitorPtr prev;

	while (ptr)
	{
		TestFree (ptr->mon_identifier);
		TestFree (ptr->mon_vendor);
		TestFree (ptr->mon_modelname);
		TestFree (ptr->mon_comment);
		xf86optionListFree (ptr->mon_option_lst);
		xf86freeModeLineList (ptr->mon_modeline_lst);
		prev = ptr;
		ptr = ptr->list.next;
		xf86conffree (prev);
	}
}

void
xf86freeModesList (XF86ConfModesPtr ptr)
{
	XF86ConfModesPtr prev;

	while (ptr)
	{
		TestFree (ptr->modes_identifier);
		TestFree (ptr->modes_comment);
		xf86freeModeLineList (ptr->mon_modeline_lst);
		xf86optionListFree (ptr->modes_option_lst);
		prev = ptr;
		ptr = ptr->list.next;
		xf86conffree (prev);
	}
}

void
xf86freeModeLineList (XF86ConfModeLinePtr ptr)
{
	XF86ConfModeLinePtr prev;
	while (ptr)
	{
		TestFree (ptr->ml_identifier);
		TestFree (ptr->ml_comment);
		prev = ptr;
		ptr = ptr->list.next;
		xf86conffree (prev);
	}
}

XF86ConfMonitorPtr
xf86findMonitor (const char *ident, XF86ConfMonitorPtr p)
{
	while (p)
	{
		if (xf86nameCompare (ident, p->mon_identifier) == 0)
			return (p);

		p = p->list.next;
	}
	return (NULL);
}

XF86ConfModesPtr
xf86findModes (const char *ident, XF86ConfModesPtr p)
{
	while (p)
	{
		if (xf86nameCompare (ident, p->modes_identifier) == 0)
			return (p);

		p = p->list.next;
	}
	return (NULL);
}

XF86ConfModeLinePtr
xf86findModeLine (const char *ident, XF86ConfModeLinePtr p)
{
	while (p)
	{
		if (xf86nameCompare (ident, p->ml_identifier) == 0)
			return (p);

		p = p->list.next;
	}
	return (NULL);
}

int
xf86validateMonitor (XF86ConfigPtr p, XF86ConfScreenPtr screen)
{
	XF86ConfMonitorListPtr monitorlist;
	XF86ConfModesLinkPtr modeslnk;
	XF86ConfModesPtr modes;

	monitorlist = screen->scrn_monitor_lst;
	while (monitorlist)
	{
	    if (monitorlist->monitor) {
			modeslnk = monitorlist->monitor->mon_modes_sect_lst;
			while(modeslnk)
			{
				modes = xf86findModes (modeslnk->ml_modes_str, p->conf_modes_lst);
				if (!modes)
				{
					xf86validationError (UNDEFINED_MODES_MSG, 
					     		modeslnk->ml_modes_str, 
					     		screen->scrn_identifier);
					return (FALSE);
				}
				modeslnk->ml_modes = modes;
				modeslnk = modeslnk->list.next;
			}
		}
		monitorlist = monitorlist->list.next;
	}
	return (TRUE);
}
