Initial revision

1 files changed, 283 insertions, 0 deletions

diff --git a/hw/xfree86/parser/read.c b/hw/xfree86/parser/read.c
new file mode 100644
index 000000000..cd7bbf10b
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+++ b/hw/xfree86/parser/read.c
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+/* $XFree86: xc/programs/Xserver/hw/xfree86/parser/read.c,v 1.23 2003/01/04 20:20:23 paulo 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.
+ * 
+ */
+
+/* View/edit this file with tab stops set to 4 */
+
+#include "xf86Parser.h"
+#include "xf86tokens.h"
+#include "Configint.h"
+
+extern LexRec val;
+
+static xf86ConfigSymTabRec TopLevelTab[] =
+{
+	{SECTION, "section"},
+	{-1, ""},
+};
+
+#define CLEANUP xf86freeConfig
+
+XF86ConfigPtr
+xf86readConfigFile (void)
+{
+	int token;
+	XF86ConfigPtr ptr = NULL;
+
+	if ((ptr = xf86confcalloc (1, sizeof (XF86ConfigRec))) == NULL)
+	{
+		return NULL;
+	}
+	memset (ptr, 0, sizeof (XF86ConfigRec));
+
+	while ((token = xf86getToken (TopLevelTab)) != EOF_TOKEN)
+	{
+		switch (token)
+		{
+		case COMMENT:
+			ptr->conf_comment = xf86addComment(ptr->conf_comment, val.str);
+			break;
+		case SECTION:
+			if (xf86getSubToken (&(ptr->conf_comment)) != STRING)
+			{
+				xf86parseError (QUOTE_MSG, "Section");
+				CLEANUP (ptr);
+				return (NULL);
+			}
+			xf86setSection (val.str);
+			if (xf86nameCompare (val.str, "files") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_RETURN (conf_files, xf86parseFilesSection ());
+			}
+			else if (xf86nameCompare (val.str, "serverflags") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_RETURN (conf_flags, xf86parseFlagsSection ());
+			}
+			else if (xf86nameCompare (val.str, "keyboard") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_input_lst, xf86parseKeyboardSection,
+							 XF86ConfInputPtr);
+			}
+			else if (xf86nameCompare (val.str, "pointer") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_input_lst, xf86parsePointerSection,
+							 XF86ConfInputPtr);
+			}
+			else if (xf86nameCompare (val.str, "videoadaptor") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_videoadaptor_lst, xf86parseVideoAdaptorSection,
+							 XF86ConfVideoAdaptorPtr);
+			}
+			else if (xf86nameCompare (val.str, "device") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_device_lst, xf86parseDeviceSection,
+							 XF86ConfDevicePtr);
+			}
+			else if (xf86nameCompare (val.str, "monitor") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_monitor_lst, xf86parseMonitorSection,
+							 XF86ConfMonitorPtr);
+			}
+			else if (xf86nameCompare (val.str, "modes") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_modes_lst, xf86parseModesSection,
+							 XF86ConfModesPtr);
+			}
+			else if (xf86nameCompare (val.str, "screen") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_screen_lst, xf86parseScreenSection,
+							 XF86ConfScreenPtr);
+			}
+			else if (xf86nameCompare(val.str, "inputdevice") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_input_lst, xf86parseInputSection,
+							 XF86ConfInputPtr);
+			}
+			else if (xf86nameCompare (val.str, "module") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_RETURN (conf_modules, xf86parseModuleSection ());
+			}
+			else if (xf86nameCompare (val.str, "serverlayout") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_layout_lst, xf86parseLayoutSection,
+							 XF86ConfLayoutPtr);
+			}
+			else if (xf86nameCompare (val.str, "vendor") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_LIST (conf_vendor_lst, xf86parseVendorSection,
+							 XF86ConfVendorPtr);
+			}
+			else if (xf86nameCompare (val.str, "dri") == 0)
+			{
+				xf86conffree(val.str);
+				val.str = NULL;
+				HANDLE_RETURN (conf_dri, xf86parseDRISection ());
+			}
+			else
+			{
+				Error (INVALID_SECTION_MSG, xf86tokenString ());
+				xf86conffree(val.str);
+				val.str = NULL;
+			}
+			break;
+		default:
+			Error (INVALID_KEYWORD_MSG, xf86tokenString ());
+			xf86conffree(val.str);
+			val.str = NULL;
+		}
+	}
+
+	if (xf86validateConfig (ptr))
+		return (ptr);
+	else
+	{
+		CLEANUP (ptr);
+		return (NULL);
+	}
+}
+
+#undef CLEANUP
+
+/* 
+ * This function resolves name references and reports errors if the named
+ * objects cannot be found.
+ */
+int
+xf86validateConfig (XF86ConfigPtr p)
+{
+	if (!xf86validateDevice (p))
+		return FALSE;
+	if (!xf86validateScreen (p))
+		return FALSE;
+	if (!xf86validateInput (p))
+		return FALSE;
+	if (!xf86validateLayout (p))
+		return FALSE;
+
+	return (TRUE);
+}
+
+/* 
+ * adds an item to the end of the linked list. Any record whose first field
+ * is a GenericListRec can be cast to this type and used with this function.
+ * A pointer to the head of the list is returned to handle the addition of
+ * the first item.
+ */
+GenericListPtr
+xf86addListItem (GenericListPtr head, GenericListPtr new)
+{
+	GenericListPtr p = head;
+	GenericListPtr last = NULL;
+
+	while (p)
+	{
+		last = p;
+		p = p->next;
+	}
+
+	if (last)
+	{
+		last->next = new;
+		return (head);
+	}
+	else
+		return (new);
+}
+
+/* 
+ * Test if one chained list contains the other.
+ * In this case both list have the same endpoint (provided they don't loop)
+ */
+int
+xf86itemNotSublist(GenericListPtr list_1, GenericListPtr list_2)
+{
+	GenericListPtr p = list_1;
+	GenericListPtr last_1 = NULL, last_2 = NULL;
+
+	while (p) {
+		last_1 = p;
+		p = p->next;
+	}
+
+	p = list_2;
+	while (p) {
+		last_2 = p;
+		p = p->next;
+	}
+
+	return (!(last_1 == last_2));
+}
+
+void
+xf86freeConfig (XF86ConfigPtr p)
+{
+	if (p == NULL)
+		return;
+
+	xf86freeFiles (p->conf_files);
+	xf86freeModules (p->conf_modules);
+	xf86freeFlags (p->conf_flags);
+	xf86freeMonitorList (p->conf_monitor_lst);
+	xf86freeModesList (p->conf_modes_lst);
+	xf86freeVideoAdaptorList (p->conf_videoadaptor_lst);
+	xf86freeDeviceList (p->conf_device_lst);
+	xf86freeScreenList (p->conf_screen_lst);
+	xf86freeLayoutList (p->conf_layout_lst);
+	xf86freeInputList (p->conf_input_lst);
+	xf86freeVendorList (p->conf_vendor_lst);
+	xf86freeDRI (p->conf_dri);
+	TestFree(p->conf_comment);
+
+	xf86conffree (p);
+}