diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /scripts/kconfig/zconf.l |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'scripts/kconfig/zconf.l')
-rw-r--r-- | scripts/kconfig/zconf.l | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l new file mode 100644 index 000000000000..55517b2877cd --- /dev/null +++ b/scripts/kconfig/zconf.l | |||
@@ -0,0 +1,366 @@ | |||
1 | %option backup nostdinit noyywrap never-interactive full ecs | ||
2 | %option 8bit backup nodefault perf-report perf-report | ||
3 | %x COMMAND HELP STRING PARAM | ||
4 | %{ | ||
5 | /* | ||
6 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> | ||
7 | * Released under the terms of the GNU GPL v2.0. | ||
8 | */ | ||
9 | |||
10 | #include <limits.h> | ||
11 | #include <stdio.h> | ||
12 | #include <stdlib.h> | ||
13 | #include <string.h> | ||
14 | #include <unistd.h> | ||
15 | |||
16 | #define LKC_DIRECT_LINK | ||
17 | #include "lkc.h" | ||
18 | |||
19 | #define START_STRSIZE 16 | ||
20 | |||
21 | char *text; | ||
22 | static char *text_ptr; | ||
23 | static int text_size, text_asize; | ||
24 | |||
25 | struct buffer { | ||
26 | struct buffer *parent; | ||
27 | YY_BUFFER_STATE state; | ||
28 | }; | ||
29 | |||
30 | struct buffer *current_buf; | ||
31 | |||
32 | static int last_ts, first_ts; | ||
33 | |||
34 | static void zconf_endhelp(void); | ||
35 | static struct buffer *zconf_endfile(void); | ||
36 | |||
37 | void new_string(void) | ||
38 | { | ||
39 | text = malloc(START_STRSIZE); | ||
40 | text_asize = START_STRSIZE; | ||
41 | text_ptr = text; | ||
42 | text_size = 0; | ||
43 | *text_ptr = 0; | ||
44 | } | ||
45 | |||
46 | void append_string(const char *str, int size) | ||
47 | { | ||
48 | int new_size = text_size + size + 1; | ||
49 | if (new_size > text_asize) { | ||
50 | text = realloc(text, new_size); | ||
51 | text_asize = new_size; | ||
52 | text_ptr = text + text_size; | ||
53 | } | ||
54 | memcpy(text_ptr, str, size); | ||
55 | text_ptr += size; | ||
56 | text_size += size; | ||
57 | *text_ptr = 0; | ||
58 | } | ||
59 | |||
60 | void alloc_string(const char *str, int size) | ||
61 | { | ||
62 | text = malloc(size + 1); | ||
63 | memcpy(text, str, size); | ||
64 | text[size] = 0; | ||
65 | } | ||
66 | %} | ||
67 | |||
68 | ws [ \n\t] | ||
69 | n [A-Za-z0-9_] | ||
70 | |||
71 | %% | ||
72 | int str = 0; | ||
73 | int ts, i; | ||
74 | |||
75 | [ \t]*#.*\n current_file->lineno++; | ||
76 | [ \t]*#.* | ||
77 | |||
78 | [ \t]*\n current_file->lineno++; return T_EOL; | ||
79 | |||
80 | [ \t]+ { | ||
81 | BEGIN(COMMAND); | ||
82 | } | ||
83 | |||
84 | . { | ||
85 | unput(yytext[0]); | ||
86 | BEGIN(COMMAND); | ||
87 | } | ||
88 | |||
89 | |||
90 | <COMMAND>{ | ||
91 | "mainmenu" BEGIN(PARAM); return T_MAINMENU; | ||
92 | "menu" BEGIN(PARAM); return T_MENU; | ||
93 | "endmenu" BEGIN(PARAM); return T_ENDMENU; | ||
94 | "source" BEGIN(PARAM); return T_SOURCE; | ||
95 | "choice" BEGIN(PARAM); return T_CHOICE; | ||
96 | "endchoice" BEGIN(PARAM); return T_ENDCHOICE; | ||
97 | "comment" BEGIN(PARAM); return T_COMMENT; | ||
98 | "config" BEGIN(PARAM); return T_CONFIG; | ||
99 | "menuconfig" BEGIN(PARAM); return T_MENUCONFIG; | ||
100 | "help" BEGIN(PARAM); return T_HELP; | ||
101 | "if" BEGIN(PARAM); return T_IF; | ||
102 | "endif" BEGIN(PARAM); return T_ENDIF; | ||
103 | "depends" BEGIN(PARAM); return T_DEPENDS; | ||
104 | "requires" BEGIN(PARAM); return T_REQUIRES; | ||
105 | "optional" BEGIN(PARAM); return T_OPTIONAL; | ||
106 | "default" BEGIN(PARAM); return T_DEFAULT; | ||
107 | "prompt" BEGIN(PARAM); return T_PROMPT; | ||
108 | "tristate" BEGIN(PARAM); return T_TRISTATE; | ||
109 | "def_tristate" BEGIN(PARAM); return T_DEF_TRISTATE; | ||
110 | "bool" BEGIN(PARAM); return T_BOOLEAN; | ||
111 | "boolean" BEGIN(PARAM); return T_BOOLEAN; | ||
112 | "def_bool" BEGIN(PARAM); return T_DEF_BOOLEAN; | ||
113 | "def_boolean" BEGIN(PARAM); return T_DEF_BOOLEAN; | ||
114 | "int" BEGIN(PARAM); return T_INT; | ||
115 | "hex" BEGIN(PARAM); return T_HEX; | ||
116 | "string" BEGIN(PARAM); return T_STRING; | ||
117 | "select" BEGIN(PARAM); return T_SELECT; | ||
118 | "enable" BEGIN(PARAM); return T_SELECT; | ||
119 | "range" BEGIN(PARAM); return T_RANGE; | ||
120 | {n}+ { | ||
121 | alloc_string(yytext, yyleng); | ||
122 | zconflval.string = text; | ||
123 | return T_WORD; | ||
124 | } | ||
125 | . | ||
126 | \n current_file->lineno++; BEGIN(INITIAL); | ||
127 | } | ||
128 | |||
129 | <PARAM>{ | ||
130 | "&&" return T_AND; | ||
131 | "||" return T_OR; | ||
132 | "(" return T_OPEN_PAREN; | ||
133 | ")" return T_CLOSE_PAREN; | ||
134 | "!" return T_NOT; | ||
135 | "=" return T_EQUAL; | ||
136 | "!=" return T_UNEQUAL; | ||
137 | "if" return T_IF; | ||
138 | "on" return T_ON; | ||
139 | \"|\' { | ||
140 | str = yytext[0]; | ||
141 | new_string(); | ||
142 | BEGIN(STRING); | ||
143 | } | ||
144 | \n BEGIN(INITIAL); current_file->lineno++; return T_EOL; | ||
145 | --- /* ignore */ | ||
146 | ({n}|[-/.])+ { | ||
147 | alloc_string(yytext, yyleng); | ||
148 | zconflval.string = text; | ||
149 | return T_WORD; | ||
150 | } | ||
151 | #.* /* comment */ | ||
152 | \\\n current_file->lineno++; | ||
153 | . | ||
154 | <<EOF>> { | ||
155 | BEGIN(INITIAL); | ||
156 | } | ||
157 | } | ||
158 | |||
159 | <STRING>{ | ||
160 | [^'"\\\n]+/\n { | ||
161 | append_string(yytext, yyleng); | ||
162 | zconflval.string = text; | ||
163 | return T_WORD_QUOTE; | ||
164 | } | ||
165 | [^'"\\\n]+ { | ||
166 | append_string(yytext, yyleng); | ||
167 | } | ||
168 | \\.?/\n { | ||
169 | append_string(yytext + 1, yyleng - 1); | ||
170 | zconflval.string = text; | ||
171 | return T_WORD_QUOTE; | ||
172 | } | ||
173 | \\.? { | ||
174 | append_string(yytext + 1, yyleng - 1); | ||
175 | } | ||
176 | \'|\" { | ||
177 | if (str == yytext[0]) { | ||
178 | BEGIN(PARAM); | ||
179 | zconflval.string = text; | ||
180 | return T_WORD_QUOTE; | ||
181 | } else | ||
182 | append_string(yytext, 1); | ||
183 | } | ||
184 | \n { | ||
185 | printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno()); | ||
186 | current_file->lineno++; | ||
187 | BEGIN(INITIAL); | ||
188 | return T_EOL; | ||
189 | } | ||
190 | <<EOF>> { | ||
191 | BEGIN(INITIAL); | ||
192 | } | ||
193 | } | ||
194 | |||
195 | <HELP>{ | ||
196 | [ \t]+ { | ||
197 | ts = 0; | ||
198 | for (i = 0; i < yyleng; i++) { | ||
199 | if (yytext[i] == '\t') | ||
200 | ts = (ts & ~7) + 8; | ||
201 | else | ||
202 | ts++; | ||
203 | } | ||
204 | last_ts = ts; | ||
205 | if (first_ts) { | ||
206 | if (ts < first_ts) { | ||
207 | zconf_endhelp(); | ||
208 | return T_HELPTEXT; | ||
209 | } | ||
210 | ts -= first_ts; | ||
211 | while (ts > 8) { | ||
212 | append_string(" ", 8); | ||
213 | ts -= 8; | ||
214 | } | ||
215 | append_string(" ", ts); | ||
216 | } | ||
217 | } | ||
218 | [ \t]*\n/[^ \t\n] { | ||
219 | current_file->lineno++; | ||
220 | zconf_endhelp(); | ||
221 | return T_HELPTEXT; | ||
222 | } | ||
223 | [ \t]*\n { | ||
224 | current_file->lineno++; | ||
225 | append_string("\n", 1); | ||
226 | } | ||
227 | [^ \t\n].* { | ||
228 | append_string(yytext, yyleng); | ||
229 | if (!first_ts) | ||
230 | first_ts = last_ts; | ||
231 | } | ||
232 | <<EOF>> { | ||
233 | zconf_endhelp(); | ||
234 | return T_HELPTEXT; | ||
235 | } | ||
236 | } | ||
237 | |||
238 | <<EOF>> { | ||
239 | if (current_buf) { | ||
240 | zconf_endfile(); | ||
241 | return T_EOF; | ||
242 | } | ||
243 | fclose(yyin); | ||
244 | yyterminate(); | ||
245 | } | ||
246 | |||
247 | %% | ||
248 | void zconf_starthelp(void) | ||
249 | { | ||
250 | new_string(); | ||
251 | last_ts = first_ts = 0; | ||
252 | BEGIN(HELP); | ||
253 | } | ||
254 | |||
255 | static void zconf_endhelp(void) | ||
256 | { | ||
257 | zconflval.string = text; | ||
258 | BEGIN(INITIAL); | ||
259 | } | ||
260 | |||
261 | |||
262 | /* | ||
263 | * Try to open specified file with following names: | ||
264 | * ./name | ||
265 | * $(srctree)/name | ||
266 | * The latter is used when srctree is separate from objtree | ||
267 | * when compiling the kernel. | ||
268 | * Return NULL if file is not found. | ||
269 | */ | ||
270 | FILE *zconf_fopen(const char *name) | ||
271 | { | ||
272 | char *env, fullname[PATH_MAX+1]; | ||
273 | FILE *f; | ||
274 | |||
275 | f = fopen(name, "r"); | ||
276 | if (!f && name[0] != '/') { | ||
277 | env = getenv(SRCTREE); | ||
278 | if (env) { | ||
279 | sprintf(fullname, "%s/%s", env, name); | ||
280 | f = fopen(fullname, "r"); | ||
281 | } | ||
282 | } | ||
283 | return f; | ||
284 | } | ||
285 | |||
286 | void zconf_initscan(const char *name) | ||
287 | { | ||
288 | yyin = zconf_fopen(name); | ||
289 | if (!yyin) { | ||
290 | printf("can't find file %s\n", name); | ||
291 | exit(1); | ||
292 | } | ||
293 | |||
294 | current_buf = malloc(sizeof(*current_buf)); | ||
295 | memset(current_buf, 0, sizeof(*current_buf)); | ||
296 | |||
297 | current_file = file_lookup(name); | ||
298 | current_file->lineno = 1; | ||
299 | current_file->flags = FILE_BUSY; | ||
300 | } | ||
301 | |||
302 | void zconf_nextfile(const char *name) | ||
303 | { | ||
304 | struct file *file = file_lookup(name); | ||
305 | struct buffer *buf = malloc(sizeof(*buf)); | ||
306 | memset(buf, 0, sizeof(*buf)); | ||
307 | |||
308 | current_buf->state = YY_CURRENT_BUFFER; | ||
309 | yyin = zconf_fopen(name); | ||
310 | if (!yyin) { | ||
311 | printf("%s:%d: can't open file \"%s\"\n", zconf_curname(), zconf_lineno(), name); | ||
312 | exit(1); | ||
313 | } | ||
314 | yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); | ||
315 | buf->parent = current_buf; | ||
316 | current_buf = buf; | ||
317 | |||
318 | if (file->flags & FILE_BUSY) { | ||
319 | printf("recursive scan (%s)?\n", name); | ||
320 | exit(1); | ||
321 | } | ||
322 | if (file->flags & FILE_SCANNED) { | ||
323 | printf("file %s already scanned?\n", name); | ||
324 | exit(1); | ||
325 | } | ||
326 | file->flags |= FILE_BUSY; | ||
327 | file->lineno = 1; | ||
328 | file->parent = current_file; | ||
329 | current_file = file; | ||
330 | } | ||
331 | |||
332 | static struct buffer *zconf_endfile(void) | ||
333 | { | ||
334 | struct buffer *parent; | ||
335 | |||
336 | current_file->flags |= FILE_SCANNED; | ||
337 | current_file->flags &= ~FILE_BUSY; | ||
338 | current_file = current_file->parent; | ||
339 | |||
340 | parent = current_buf->parent; | ||
341 | if (parent) { | ||
342 | fclose(yyin); | ||
343 | yy_delete_buffer(YY_CURRENT_BUFFER); | ||
344 | yy_switch_to_buffer(parent->state); | ||
345 | } | ||
346 | free(current_buf); | ||
347 | current_buf = parent; | ||
348 | |||
349 | return parent; | ||
350 | } | ||
351 | |||
352 | int zconf_lineno(void) | ||
353 | { | ||
354 | if (current_buf) | ||
355 | return current_file->lineno - 1; | ||
356 | else | ||
357 | return 0; | ||
358 | } | ||
359 | |||
360 | char *zconf_curname(void) | ||
361 | { | ||
362 | if (current_buf) | ||
363 | return current_file->name; | ||
364 | else | ||
365 | return "<none>"; | ||
366 | } | ||