1 %option nostdinit noyywrap never-interactive full ecs
2 %option 8bit nodefault perf-report perf-report
4 %x COMMAND HELP STRING PARAM
7 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
8 * Released under the terms of the GNU GPL v2.0.
21 #define START_STRSIZE 16
29 static int text_size, text_asize;
32 struct buffer *parent;
33 YY_BUFFER_STATE state;
36 struct buffer *current_buf;
38 static int last_ts, first_ts;
40 static void zconf_endhelp(void);
41 static void zconf_endfile(void);
43 static void new_string(void)
45 text = xmalloc(START_STRSIZE);
46 text_asize = START_STRSIZE;
51 static void append_string(const char *str, int size)
53 int new_size = text_size + size + 1;
54 if (new_size > text_asize) {
55 new_size += START_STRSIZE - 1;
56 new_size &= -START_STRSIZE;
57 text = realloc(text, new_size);
58 text_asize = new_size;
60 memcpy(text + text_size, str, size);
65 static void alloc_string(const char *str, int size)
67 text = xmalloc(size + 1);
68 memcpy(text, str, size);
82 current_file->lineno++;
100 const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
102 current_pos.file = current_file;
103 current_pos.lineno = current_file->lineno;
104 if (id && id->flags & TF_COMMAND) {
108 alloc_string(yytext, yyleng);
109 zconflval.string = text;
115 current_file->lineno++;
123 "(" return T_OPEN_PAREN;
124 ")" return T_CLOSE_PAREN;
127 "!=" return T_UNEQUAL;
133 \n BEGIN(INITIAL); current_file->lineno++; return T_EOL;
136 const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
137 if (id && id->flags & TF_PARAM) {
141 alloc_string(yytext, yyleng);
142 zconflval.string = text;
146 \\\n current_file->lineno++;
155 append_string(yytext, yyleng);
156 zconflval.string = text;
160 append_string(yytext, yyleng);
163 append_string(yytext + 1, yyleng - 1);
164 zconflval.string = text;
168 append_string(yytext + 1, yyleng - 1);
171 if (str == yytext[0]) {
173 zconflval.string = text;
176 append_string(yytext, 1);
179 printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
180 current_file->lineno++;
192 for (i = 0; i < yyleng; i++) {
193 if (yytext[i] == '\t')
206 append_string(" ", 8);
209 append_string(" ", ts);
213 current_file->lineno++;
218 current_file->lineno++;
219 append_string("\n", 1);
223 if ((yytext[yyleng-1] != ' ') && (yytext[yyleng-1] != '\t'))
227 append_string(yytext, yyleng);
247 void zconf_starthelp(void)
250 last_ts = first_ts = 0;
254 static void zconf_endhelp(void)
256 zconflval.string = text;
262 * Try to open specified file with following names:
265 * The latter is used when srctree is separate from objtree
266 * when compiling the kernel.
267 * Return NULL if file is not found.
269 FILE *zconf_fopen(const char *name)
271 char *env, fullname[PATH_MAX+1];
274 f = fopen(name, "r");
275 if (!f && name != NULL && name[0] != '/') {
276 env = getenv(SRCTREE);
278 sprintf(fullname, "%s/%s", env, name);
279 f = fopen(fullname, "r");
285 void zconf_initscan(const char *name)
287 yyin = zconf_fopen(name);
289 printf("can't find file %s\n", name);
293 current_buf = xmalloc(sizeof(*current_buf));
294 memset(current_buf, 0, sizeof(*current_buf));
296 current_file = file_lookup(name);
297 current_file->lineno = 1;
300 static void __zconf_nextfile(const char *name)
303 struct file *file = file_lookup(name);
304 struct buffer *buf = xmalloc(sizeof(*buf));
305 memset(buf, 0, sizeof(*buf));
307 current_buf->state = YY_CURRENT_BUFFER;
308 yyin = zconf_fopen(file->name);
310 printf("%s:%d: can't open file \"%s\"\n",
311 zconf_curname(), zconf_lineno(), file->name);
314 yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
315 buf->parent = current_buf;
318 for (iter = current_file->parent; iter; iter = iter->parent ) {
319 if (!strcmp(current_file->name,iter->name) ) {
320 printf("%s:%d: recursive inclusion detected. "
321 "Inclusion path:\n current file : '%s'\n",
322 zconf_curname(), zconf_lineno(),
324 iter = current_file->parent;
326 strcmp(iter->name,current_file->name)) {
327 printf(" included from: '%s:%d'\n",
328 iter->name, iter->lineno-1);
332 printf(" included from: '%s:%d'\n",
333 iter->name, iter->lineno+1);
338 file->parent = current_file;
342 void zconf_nextfile(const char *name)
347 char path[PATH_MAX], *p;
349 err = glob(name, GLOB_ERR | GLOB_MARK, NULL, &gl);
351 /* ignore wildcard patterns that return no result */
352 if (err == GLOB_NOMATCH && strchr(name, '*')) {
357 if (err == GLOB_NOMATCH) {
358 p = strdup(current_file->name);
360 snprintf(path, sizeof(path), "%s/%s", dirname(p), name);
361 err = glob(path, GLOB_ERR | GLOB_MARK, NULL, &gl);
367 const char *reason = "unknown error";
371 reason = "out of memory";
374 reason = "read error";
377 reason = "No files found";
383 printf("%s:%d: glob failed: %s \"%s\"\n", zconf_curname(), zconf_lineno(),
389 for (i = 0; i < gl.gl_pathc; i++)
390 __zconf_nextfile(gl.gl_pathv[i]);
393 static void zconf_endfile(void)
395 struct buffer *parent;
397 current_file = current_file->parent;
399 parent = current_buf->parent;
402 yy_delete_buffer(YY_CURRENT_BUFFER);
403 yy_switch_to_buffer(parent->state);
406 current_buf = parent;
409 int zconf_lineno(void)
411 return current_pos.lineno;
414 const char *zconf_curname(void)
416 return current_pos.file ? current_pos.file->name : "<none>";