text: /* $XFree86: xc/programs/Xserver/hw/xfree86/parser/Input.c,v 1.16 2006/08/09 20:53:15 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.
   */
  
  
  /* View/edit this file with tab stops set to 4 */
  
  #include "xf86Parser.h"
  #include "xf86tokens.h"
  #include "Configint.h"
  
  extern LexRec val;
  
  static
  xf86ConfigSymTabRec InputTab[] =
  {
  	{ENDSECTION, "endsection"},
  	{IDENTIFIER, "identifier"},
  	{OPTION, "option"},
  	{DRIVER, "driver"},
  	{-1, ""},
  };
  
  #define CLEANUP xf86freeInputList
  
  XF86ConfInputPtr
  xf86parseInputSection (void)
  {
  	int has_ident = FALSE;
  	int token;
  	parsePrologue (XF86ConfInputPtr, XF86ConfInputRec)
  
  	while ((token = xf86getToken (InputTab)) != ENDSECTION)
  	{
  		switch (token)
  		{
  		case COMMENT:
  			ptr->inp_comment = xf86addComment(ptr->inp_comment, val.str);
  			break;
  		case IDENTIFIER:
  			if (xf86getSubToken (&(ptr->inp_comment)) != STRING)
  				Error (QUOTE_MSG, "Identifier");
  			if (has_ident == TRUE)
  				Error (MULTIPLE_MSG, "Identifier");
  			ptr->inp_identifier = xf86configStrdup(val.str);
  			has_ident = TRUE;
  			break;
  		case DRIVER:
  			if (xf86getSubToken (&(ptr->inp_comment)) != STRING)
  				Error (QUOTE_MSG, "Driver");
  			ptr->inp_driver = xf86configStrdup(val.str);
  			break;
  		case OPTION:
  			ptr->inp_option_lst = xf86parseOption(ptr->inp_option_lst);
  			break;
  		case EOF_TOKEN:
  			Error (UNEXPECTED_EOF_MSG, NULL);
  			break;
  		default:
  			Error (INVALID_KEYWORD_MSG, xf86tokenString ());
  			break;
  		}
  	}
  
  	if (!has_ident)
  		Error (NO_IDENT_MSG, NULL);
  
  #ifdef DEBUG
  	printf ("InputDevice section parsed\n");
  #endif
  
  	return ptr;
  }
  
  #undef CLEANUP
  
  void
  xf86printInputSection (FILE * cf, XF86ConfInputPtr ptr)
  {
  	while (ptr)
  	{
  		fprintf (cf, "Section \"InputDevice\"\n");
  		if (ptr->inp_comment)
  			fprintf (cf, "%s", ptr->inp_comment);
  		if (ptr->inp_identifier)
  			fprintf (cf, "\tIdentifier  \"%s\"\n", ptr->inp_identifier);
  		if (ptr->inp_driver)
  			fprintf (cf, "\tDriver      \"%s\"\n", ptr->inp_driver);
  		xf86printOptionList(cf, ptr->inp_option_lst, 1);
  		fprintf (cf, "EndSection\n\n");
  		ptr = ptr->list.next;
  	}
  }
  
  void
  xf86freeInputList (XF86ConfInputPtr ptr)
  {
  	XF86ConfInputPtr prev;
  
  	while (ptr)
  	{
  		TestFree (ptr->inp_identifier);
  		TestFree (ptr->inp_driver);
  		TestFree (ptr->inp_comment);
  		xf86optionListFree (ptr->inp_option_lst);
  
  		prev = ptr;
  		ptr = ptr->list.next;
  		xf86conffree (prev);
  	}
  }
  
  int
  xf86validateInput (XF86ConfigPtr p)
  {
  	XF86ConfInputPtr input = p->conf_input_lst;
  
  #if 0 /* Enable this later */
  	if (!input) {
  		xf86validationError ("At least one InputDevice section is required.");
  		return (FALSE);
  	}
  #endif
  
  	while (input) {
  		if (!input->inp_driver) {
  			xf86validationError (UNDEFINED_INPUTDRIVER_MSG, input->inp_identifier);
  			return (FALSE);
  		}
  		input = input->list.next;
  	}
  	return (TRUE);
  }
  
  XF86ConfInputPtr
  xf86findInput (const char *ident, XF86ConfInputPtr p)
  {
  	while (p)
  	{
  		if (xf86nameCompare (ident, p->inp_identifier) == 0)
  			return (p);
  
  		p = p->list.next;
  	}
  	return (NULL);
  }
  
  XF86ConfInputPtr
  xf86findInputByDriver (const char *driver, XF86ConfInputPtr p)
  {
  	while (p)
  	{
  		if (xf86nameCompare (driver, p->inp_driver) == 0)
  			return (p);
  
  		p = p->list.next;
  	}
  	return (NULL);
  }
  
  