hw/xfree86/parser/Module.c

   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 SubModuleTab[] = {
  66     {ENDSUBSECTION, "endsubsection"},
  67     {OPTION, "option"},
  68     {-1, ""},
  69 };
  70
  71 static xf86ConfigSymTabRec ModuleTab[] = {
  72     {ENDSECTION, "endsection"},
  73     {LOAD, "load"},
  74     {DISABLE, "disable"},
  75     {LOAD_DRIVER, "loaddriver"},
  76     {SUBSECTION, "subsection"},
  77     {-1, ""},
  78 };
  79
  80 #define CLEANUP xf86freeModules
  81
  82 static XF86LoadPtr
  83 xf86parseModuleSubSection(XF86LoadPtr head, char *name)
  84 {
  85     int token;
  86
  87     parsePrologue(XF86LoadPtr, XF86LoadRec)
  88
  89         ptr->load_name = name;
  90     ptr->load_type = XF86_LOAD_MODULE;
  91     ptr->ignore = 0;
  92     ptr->load_opt = NULL;
  93     ptr->list.next = NULL;
  94
  95     while ((token = xf86getToken(SubModuleTab)) != ENDSUBSECTION) {
  96         switch (token) {
  97         case COMMENT:
  98             ptr->load_comment = xf86addComment(ptr->load_comment, val.str);
  99             break;
 100         case OPTION:
 101             ptr->load_opt = xf86parseOption(ptr->load_opt);
 102             break;
 103         case EOF_TOKEN:
 104             xf86parseError(UNEXPECTED_EOF_MSG);
 105             free(ptr);
 106             return NULL;
 107         default:
 108             xf86parseError(INVALID_KEYWORD_MSG, xf86tokenString());
 109             free(ptr);
 110             return NULL;
 111             break;
 112         }
 113
 114     }
 115
 116     return ((XF86LoadPtr) xf86addListItem((glp) head, (glp) ptr));
 117 }
 118
 119 XF86ConfModulePtr
 120 xf86parseModuleSection(void)
 121 {
 122     int token;
 123
 124     parsePrologue(XF86ConfModulePtr, XF86ConfModuleRec)
 125
 126         while ((token = xf86getToken(ModuleTab)) != ENDSECTION) {
 127         switch (token) {
 128         case COMMENT:
 129             ptr->mod_comment = xf86addComment(ptr->mod_comment, val.str);
 130             break;
 131         case LOAD:
 132             if (xf86getSubToken(&(ptr->mod_comment)) != STRING)
 133                 Error(QUOTE_MSG, "Load");
 134             ptr->mod_load_lst =
 135                 xf86addNewLoadDirective(ptr->mod_load_lst, val.str,
 136                                         XF86_LOAD_MODULE, NULL);
 137             break;
 138         case DISABLE:
 139             if (xf86getSubToken(&(ptr->mod_comment)) != STRING)
 140                 Error(QUOTE_MSG, "Disable");
 141             ptr->mod_disable_lst =
 142                 xf86addNewLoadDirective(ptr->mod_disable_lst, val.str,
 143                                         XF86_DISABLE_MODULE, NULL);
 144             break;
 145         case LOAD_DRIVER:
 146             if (xf86getSubToken(&(ptr->mod_comment)) != STRING)
 147                 Error(QUOTE_MSG, "LoadDriver");
 148             ptr->mod_load_lst =
 149                 xf86addNewLoadDirective(ptr->mod_load_lst, val.str,
 150                                         XF86_LOAD_DRIVER, NULL);
 151             break;
 152         case SUBSECTION:
 153             if (xf86getSubToken(&(ptr->mod_comment)) != STRING)
 154                 Error(QUOTE_MSG, "SubSection");
 155             ptr->mod_load_lst =
 156                 xf86parseModuleSubSection(ptr->mod_load_lst, val.str);
 157             break;
 158         case EOF_TOKEN:
 159             Error(UNEXPECTED_EOF_MSG);
 160             break;
 161         default:
 162             Error(INVALID_KEYWORD_MSG, xf86tokenString());
 163             break;
 164         }
 165     }
 166
 167 #ifdef DEBUG
 168     printf("Module section parsed\n");
 169 #endif
 170
 171     return ptr;
 172 }
 173
 174 #undef CLEANUP
 175
 176 void
 177 xf86printModuleSection(FILE * cf, XF86ConfModulePtr ptr)
 178 {
 179     XF86LoadPtr lptr;
 180
 181     if (ptr == NULL)
 182         return;
 183
 184     if (ptr->mod_comment)
 185         fprintf(cf, "%s", ptr->mod_comment);
 186     for (lptr = ptr->mod_load_lst; lptr; lptr = lptr->list.next) {
 187         switch (lptr->load_type) {
 188         case XF86_LOAD_MODULE:
 189             if (lptr->load_opt == NULL) {
 190                 fprintf(cf, "\tLoad  \"%s\"", lptr->load_name);
 191                 if (lptr->load_comment)
 192                     fprintf(cf, "%s", lptr->load_comment);
 193                 else
 194                     fputc('\n', cf);
 195             }
 196             else {
 197                 fprintf(cf, "\tSubSection \"%s\"\n", lptr->load_name);
 198                 if (lptr->load_comment)
 199                     fprintf(cf, "%s", lptr->load_comment);
 200                 xf86printOptionList(cf, lptr->load_opt, 2);
 201                 fprintf(cf, "\tEndSubSection\n");
 202             }
 203             break;
 204         case XF86_LOAD_DRIVER:
 205             fprintf(cf, "\tLoadDriver  \"%s\"", lptr->load_name);
 206             if (lptr->load_comment)
 207                 fprintf(cf, "%s", lptr->load_comment);
 208             else
 209                 fputc('\n', cf);
 210             break;
 211 #if 0
 212         default:
 213             fprintf(cf, "#\tUnknown type  \"%s\"\n", lptr->load_name);
 214             break;
 215 #endif
 216         }
 217     }
 218 }
 219
 220 XF86LoadPtr
 221 xf86addNewLoadDirective(XF86LoadPtr head, char *name, int type,
 222                         XF86OptionPtr opts)
 223 {
 224     XF86LoadPtr new;
 225     int token;
 226
 227     new = calloc(1, sizeof(XF86LoadRec));
 228     new->load_name = name;
 229     new->load_type = type;
 230     new->load_opt = opts;
 231     new->ignore = 0;
 232     new->list.next = NULL;
 233
 234     if ((token = xf86getToken(NULL)) == COMMENT)
 235         new->load_comment = xf86addComment(new->load_comment, val.str);
 236     else
 237         xf86unGetToken(token);
 238
 239     return ((XF86LoadPtr) xf86addListItem((glp) head, (glp) new));
 240 }
 241
 242 void
 243 xf86freeModules(XF86ConfModulePtr ptr)
 244 {
 245     XF86LoadPtr lptr;
 246     XF86LoadPtr prev;
 247
 248     if (ptr == NULL)
 249         return;
 250     lptr = ptr->mod_load_lst;
 251     while (lptr) {
 252         TestFree(lptr->load_name);
 253         TestFree(lptr->load_comment);
 254         prev = lptr;
 255         lptr = lptr->list.next;
 256         free(prev);
 257     }
 258     lptr = ptr->mod_disable_lst;
 259     while (lptr) {
 260         TestFree(lptr->load_name);
 261         TestFree(lptr->load_comment);
 262         prev = lptr;
 263         lptr = lptr->list.next;
 264         free(prev);
 265     }
 266     TestFree(ptr->mod_comment);
 267     free(ptr);
 268 }