[deb_xorg-server.git] / hw / xfree86 / parser / read.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).
 */

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

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

extern LexRec val;

static xf86ConfigSymTabRec TopLevelTab[] = {
    {SECTION, "section"},
    {-1, ""},
};

#define CLEANUP xf86freeConfig

/* 
 * This function resolves name references and reports errors if the named
 * objects cannot be found.
 */
static int
xf86validateConfig(XF86ConfigPtr p)
{
    if (!xf86validateScreen(p))
        return FALSE;
    if (!xf86validateInput(p))
        return FALSE;
    if (!xf86validateLayout(p))
        return FALSE;

    return TRUE;
}

XF86ConfigPtr
xf86readConfigFile(void)
{
    int token;
    XF86ConfigPtr ptr = NULL;

    if ((ptr = calloc(1, sizeof(XF86ConfigRec))) == NULL) {
        return NULL;
    }

    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) {
                free(val.str);
                val.str = NULL;
                HANDLE_RETURN(conf_files, xf86parseFilesSection());
            }
            else if (xf86nameCompare(val.str, "serverflags") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_RETURN(conf_flags, xf86parseFlagsSection());
            }
            else if (xf86nameCompare(val.str, "pointer") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_input_lst, xf86parsePointerSection,
                            XF86ConfInputPtr);
            }
            else if (xf86nameCompare(val.str, "videoadaptor") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_videoadaptor_lst, xf86parseVideoAdaptorSection,
                            XF86ConfVideoAdaptorPtr);
            }
            else if (xf86nameCompare(val.str, "device") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_device_lst, xf86parseDeviceSection,
                            XF86ConfDevicePtr);
            }
            else if (xf86nameCompare(val.str, "monitor") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_monitor_lst, xf86parseMonitorSection,
                            XF86ConfMonitorPtr);
            }
            else if (xf86nameCompare(val.str, "modes") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_modes_lst, xf86parseModesSection,
                            XF86ConfModesPtr);
            }
            else if (xf86nameCompare(val.str, "screen") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_screen_lst, xf86parseScreenSection,
                            XF86ConfScreenPtr);
            }
            else if (xf86nameCompare(val.str, "inputdevice") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_input_lst, xf86parseInputSection,
                            XF86ConfInputPtr);
            }
            else if (xf86nameCompare(val.str, "inputclass") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_inputclass_lst,
                            xf86parseInputClassSection, XF86ConfInputClassPtr);
            }
            else if (xf86nameCompare(val.str, "module") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_RETURN(conf_modules, xf86parseModuleSection());
            }
            else if (xf86nameCompare(val.str, "serverlayout") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_layout_lst, xf86parseLayoutSection,
                            XF86ConfLayoutPtr);
            }
            else if (xf86nameCompare(val.str, "vendor") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_LIST(conf_vendor_lst, xf86parseVendorSection,
                            XF86ConfVendorPtr);
            }
            else if (xf86nameCompare(val.str, "dri") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_RETURN(conf_dri, xf86parseDRISection());
            }
            else if (xf86nameCompare(val.str, "extensions") == 0) {
                free(val.str);
                val.str = NULL;
                HANDLE_RETURN(conf_extensions, xf86parseExtensionsSection());
            }
            else {
                free(val.str);
                val.str = NULL;
                Error(INVALID_SECTION_MSG, xf86tokenString());
            }
            break;
        default:
            free(val.str);
            val.str = NULL;
            Error(INVALID_KEYWORD_MSG, xf86tokenString());
        }
    }

    if (xf86validateConfig(ptr))
        return ptr;
    else {
        CLEANUP(ptr);
        return NULL;
    }
}

#undef CLEANUP

/* 
 * 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);
    xf86freeExtensions(p->conf_extensions);
    TestFree(p->conf_comment);

    free(p);
}
Commit	Line	Data
a09e091a JB	1	/*
	2	*
	3	* Copyright (c) 1997 Metro Link Incorporated
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a
	6	* copy of this software and associated documentation files (the "Software"),
	7	* to deal in the Software without restriction, including without limitation
	8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	9	* and/or sell copies of the Software, and to permit persons to whom the
	10	* Software is furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice shall be included in
	13	* all copies or substantial portions of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	19	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
	20	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	21	* SOFTWARE.
	22	*
	23	* Except as contained in this notice, the name of the Metro Link shall not be
	24	* used in advertising or otherwise to promote the sale, use or other dealings
	25	* in this Software without prior written authorization from Metro Link.
	26	*
	27	*/
	28	/*
	29	* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
	30	*
	31	* Permission is hereby granted, free of charge, to any person obtaining a
	32	* copy of this software and associated documentation files (the "Software"),
	33	* to deal in the Software without restriction, including without limitation
	34	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	35	* and/or sell copies of the Software, and to permit persons to whom the
	36	* Software is furnished to do so, subject to the following conditions:
	37	*
	38	* The above copyright notice and this permission notice shall be included in
	39	* all copies or substantial portions of the Software.
	40	*
	41	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	42	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	43	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	44	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	45	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	46	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	47	* OTHER DEALINGS IN THE SOFTWARE.
	48	*
	49	* Except as contained in this notice, the name of the copyright holder(s)
	50	* and author(s) shall not be used in advertising or otherwise to promote
	51	* the sale, use or other dealings in this Software without prior written
	52	* authorization from the copyright holder(s) and author(s).
	53	*/
	54
	55	#ifdef HAVE_XORG_CONFIG_H
	56	#include <xorg-config.h>
	57	#endif
	58
	59	#include "xf86Parser.h"
	60	#include "xf86tokens.h"
	61	#include "Configint.h"
	62
	63	extern LexRec val;
	64
65	static xf86ConfigSymTabRec TopLevelTab[] = {
66	{SECTION, "section"},
67	{-1, ""},
68	};
69
70	#define CLEANUP xf86freeConfig
71
72	/*
73	* This function resolves name references and reports errors if the named
74	* objects cannot be found.
75	*/
76	static int
77	xf86validateConfig(XF86ConfigPtr p)
78	{
79	if (!xf86validateScreen(p))
80	return FALSE;
81	if (!xf86validateInput(p))
82	return FALSE;
83	if (!xf86validateLayout(p))
84	return FALSE;
85
86	return TRUE;
87	}
88
89	XF86ConfigPtr
90	xf86readConfigFile(void)
91	{
92	int token;
93	XF86ConfigPtr ptr = NULL;
94
95	if ((ptr = calloc(1, sizeof(XF86ConfigRec))) == NULL) {
96	return NULL;
97	}
98
99	while ((token = xf86getToken(TopLevelTab)) != EOF_TOKEN) {
100	switch (token) {
101	case COMMENT:
102	ptr->conf_comment = xf86addComment(ptr->conf_comment, val.str);
103	break;
104	case SECTION:
105	if (xf86getSubToken(&(ptr->conf_comment)) != STRING) {
106	xf86parseError(QUOTE_MSG, "Section");
107	CLEANUP(ptr);
108	return NULL;
109	}
110	xf86setSection(val.str);
111	if (xf86nameCompare(val.str, "files") == 0) {
112	free(val.str);
113	val.str = NULL;
114	HANDLE_RETURN(conf_files, xf86parseFilesSection());
115	}
116	else if (xf86nameCompare(val.str, "serverflags") == 0) {
117	free(val.str);
118	val.str = NULL;
119	HANDLE_RETURN(conf_flags, xf86parseFlagsSection());
120	}
121	else if (xf86nameCompare(val.str, "pointer") == 0) {
122	free(val.str);
123	val.str = NULL;
124	HANDLE_LIST(conf_input_lst, xf86parsePointerSection,
125	XF86ConfInputPtr);
126	}
127	else if (xf86nameCompare(val.str, "videoadaptor") == 0) {
128	free(val.str);
129	val.str = NULL;
130	HANDLE_LIST(conf_videoadaptor_lst, xf86parseVideoAdaptorSection,
131	XF86ConfVideoAdaptorPtr);
132	}
133	else if (xf86nameCompare(val.str, "device") == 0) {
134	free(val.str);
135	val.str = NULL;
136	HANDLE_LIST(conf_device_lst, xf86parseDeviceSection,
137	XF86ConfDevicePtr);
138	}
139	else if (xf86nameCompare(val.str, "monitor") == 0) {
140	free(val.str);
141	val.str = NULL;
142	HANDLE_LIST(conf_monitor_lst, xf86parseMonitorSection,
143	XF86ConfMonitorPtr);
144	}
145	else if (xf86nameCompare(val.str, "modes") == 0) {
146	free(val.str);
147	val.str = NULL;
148	HANDLE_LIST(conf_modes_lst, xf86parseModesSection,
149	XF86ConfModesPtr);
150	}
151	else if (xf86nameCompare(val.str, "screen") == 0) {
152	free(val.str);
153	val.str = NULL;
154	HANDLE_LIST(conf_screen_lst, xf86parseScreenSection,
155	XF86ConfScreenPtr);
156	}
157	else if (xf86nameCompare(val.str, "inputdevice") == 0) {
158	free(val.str);
159	val.str = NULL;
160	HANDLE_LIST(conf_input_lst, xf86parseInputSection,
161	XF86ConfInputPtr);
162	}
163	else if (xf86nameCompare(val.str, "inputclass") == 0) {
164	free(val.str);
165	val.str = NULL;
166	HANDLE_LIST(conf_inputclass_lst,
167	xf86parseInputClassSection, XF86ConfInputClassPtr);
168	}
169	else if (xf86nameCompare(val.str, "module") == 0) {
170	free(val.str);
171	val.str = NULL;
172	HANDLE_RETURN(conf_modules, xf86parseModuleSection());
173	}
174	else if (xf86nameCompare(val.str, "serverlayout") == 0) {
175	free(val.str);
176	val.str = NULL;
177	HANDLE_LIST(conf_layout_lst, xf86parseLayoutSection,
178	XF86ConfLayoutPtr);
179	}
180	else if (xf86nameCompare(val.str, "vendor") == 0) {
181	free(val.str);
182	val.str = NULL;
183	HANDLE_LIST(conf_vendor_lst, xf86parseVendorSection,
184	XF86ConfVendorPtr);
185	}
186	else if (xf86nameCompare(val.str, "dri") == 0) {
187	free(val.str);
188	val.str = NULL;
189	HANDLE_RETURN(conf_dri, xf86parseDRISection());
190	}
191	else if (xf86nameCompare(val.str, "extensions") == 0) {
192	free(val.str);
193	val.str = NULL;
194	HANDLE_RETURN(conf_extensions, xf86parseExtensionsSection());
195	}
196	else {
197	free(val.str);
198	val.str = NULL;
199	Error(INVALID_SECTION_MSG, xf86tokenString());
200	}
201	break;
202	default:
203	free(val.str);
204	val.str = NULL;
205	Error(INVALID_KEYWORD_MSG, xf86tokenString());
206	}
207	}
208
209	if (xf86validateConfig(ptr))
210	return ptr;
211	else {
212	CLEANUP(ptr);
213	return NULL;
214	}
215	}
216
217	#undef CLEANUP
218
219	/*
220	* adds an item to the end of the linked list. Any record whose first field
221	* is a GenericListRec can be cast to this type and used with this function.
222	* A pointer to the head of the list is returned to handle the addition of
223	* the first item.
224	*/
225	GenericListPtr
226	xf86addListItem(GenericListPtr head, GenericListPtr new)
227	{
228	GenericListPtr p = head;
229	GenericListPtr last = NULL;
230
231	while (p) {
232	last = p;
233	p = p->next;
234	}
235
236	if (last) {
237	last->next = new;
238	return head;
239	}
240	else
241	return new;
242	}
243
244	/*
245	* Test if one chained list contains the other.
246	* In this case both list have the same endpoint (provided they don't loop)
247	*/
248	int
249	xf86itemNotSublist(GenericListPtr list_1, GenericListPtr list_2)
250	{
251	GenericListPtr p = list_1;
252	GenericListPtr last_1 = NULL, last_2 = NULL;
253
254	while (p) {
255	last_1 = p;
256	p = p->next;
257	}
258
259	p = list_2;
260	while (p) {
261	last_2 = p;
262	p = p->next;
263	}
264
265	return (!(last_1 == last_2));
266	}
267
268	void
269	xf86freeConfig(XF86ConfigPtr p)
270	{
271	if (p == NULL)
272	return;
273
274	xf86freeFiles(p->conf_files);
275	xf86freeModules(p->conf_modules);
276	xf86freeFlags(p->conf_flags);
277	xf86freeMonitorList(p->conf_monitor_lst);
278	xf86freeModesList(p->conf_modes_lst);
279	xf86freeVideoAdaptorList(p->conf_videoadaptor_lst);
280	xf86freeDeviceList(p->conf_device_lst);
281	xf86freeScreenList(p->conf_screen_lst);
282	xf86freeLayoutList(p->conf_layout_lst);
283	xf86freeInputList(p->conf_input_lst);
284	xf86freeVendorList(p->conf_vendor_lst);
285	xf86freeDRI(p->conf_dri);
286	xf86freeExtensions(p->conf_extensions);
287	TestFree(p->conf_comment);
288
289	free(p);
290	}