parse.y revision 80280 
1%{
2/*-
3 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
4 *		at Electronni Visti IA, Kiev, Ukraine.
5 *			All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/usr.bin/colldef/parse.y 80280 2001-07-24 12:20:17Z kris $
29 */
30
31#include <err.h>
32#include <stdarg.h>
33#include <stdio.h>
34#include <string.h>
35#include <stdlib.h>
36#include <unistd.h>
37#include <sysexits.h>
38#include "collate.h"
39
40extern int line_no;
41extern FILE *yyin;
42void yyerror(char *fmt, ...) __printflike(1, 2);
43int yyparse(void);
44int yylex(void);
45static void usage __P((void));
46
47char map_name[FILENAME_MAX] = ".";
48
49char __collate_version[STR_LEN];
50u_char charmap_table[UCHAR_MAX + 1][STR_LEN];
51u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN];
52struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1];
53struct __collate_st_chain_pri __collate_chain_pri_table[TABLE_SIZE];
54int chain_index;
55int prim_pri = 1, sec_pri = 1;
56#ifdef COLLATE_DEBUG
57int debug;
58#endif
59
60char *out_file = "LC_COLLATE";
61%}
62%union {
63	u_char ch;
64	u_char str[STR_LEN];
65}
66%token SUBSTITUTE WITH ORDER RANGE
67%token <str> STRING
68%token <str> CHAIN
69%token <str> DEFN
70%token <ch> CHAR
71%%
72collate : statment_list
73;
74statment_list : statment
75	| statment_list '\n' statment
76;
77statment :
78	| charmap
79	| substitute
80	| order
81;
82charmap : DEFN CHAR {
83	strcpy(charmap_table[$2], $1);
84}
85;
86substitute : SUBSTITUTE CHAR WITH STRING {
87	if ($2 == '\0')
88		yyerror("NUL character can't be substituted");
89	if (strchr($4, $2) != NULL)
90		yyerror("Char 0x%02x substitution is recursive", $2);
91	strcpy(__collate_substitute_table[$2], $4);
92}
93;
94order : ORDER order_list {
95	FILE *fp;
96	int ch, substed, ordered;
97
98	for (ch = 0; ch < UCHAR_MAX + 1; ch++) {
99		substed = (__collate_substitute_table[ch][0] != ch);
100		ordered = !!__collate_char_pri_table[ch].prim;
101		if (!ordered && !substed)
102			yyerror("Char 0x%02x not found", ch);
103		if (substed && ordered)
104			yyerror("Char 0x%02x can't be ordered since substituted", ch);
105	}
106
107	fp = fopen(out_file, "w");
108	if(!fp)
109		err(EX_UNAVAILABLE, "can't open destination file %s",
110		    out_file);
111
112	strcpy(__collate_version, COLLATE_VERSION);
113	fwrite(__collate_version, sizeof(__collate_version), 1, fp);
114	fwrite(__collate_substitute_table, sizeof(__collate_substitute_table), 1, fp);
115	fwrite(__collate_char_pri_table, sizeof(__collate_char_pri_table), 1, fp);
116	fwrite(__collate_chain_pri_table, sizeof(__collate_chain_pri_table), 1, fp);
117	if (fflush(fp))
118		err(EX_UNAVAILABLE, "IO error writting to destination file %s",
119		    out_file);
120	fclose(fp);
121#ifdef COLLATE_DEBUG
122	if (debug)
123		collate_print_tables();
124#endif
125	exit(EX_OK);
126}
127;
128order_list : item
129	| order_list ';' item
130;
131item :  CHAR {
132	if (__collate_char_pri_table[$1].prim)
133		yyerror("Char 0x%02x duplicated", $1);
134	__collate_char_pri_table[$1].prim = prim_pri++;
135}
136	| CHAIN {
137	if (chain_index >= TABLE_SIZE - 1)
138		yyerror("__collate_chain_pri_table overflow");
139	strcpy(__collate_chain_pri_table[chain_index].str, $1);
140	__collate_chain_pri_table[chain_index++].prim = prim_pri++;
141}
142	| CHAR RANGE CHAR {
143	u_int i;
144
145	if ($3 <= $1)
146		yyerror("Illegal range 0x%02x -- 0x%02x", $1, $3);
147
148	for (i = $1; i <= $3; i++) {
149		if (__collate_char_pri_table[(u_char)i].prim)
150			yyerror("Char 0x%02x duplicated", (u_char)i);
151		__collate_char_pri_table[(u_char)i].prim = prim_pri++;
152	}
153}
154	| '{' prim_order_list '}' {
155	prim_pri++;
156}
157	| '(' sec_order_list ')' {
158	prim_pri++;
159	sec_pri = 1;
160}
161;
162prim_order_list : prim_sub_item
163	| prim_order_list ',' prim_sub_item
164;
165sec_order_list : sec_sub_item
166	| sec_order_list ',' sec_sub_item
167;
168prim_sub_item : CHAR {
169	if (__collate_char_pri_table[$1].prim)
170		yyerror("Char 0x%02x duplicated", $1);
171	__collate_char_pri_table[$1].prim = prim_pri;
172}
173	| CHAR RANGE CHAR {
174	u_int i;
175
176	if ($3 <= $1)
177		yyerror("Illegal range 0x%02x -- 0x%02x",
178			$1, $3);
179
180	for (i = $1; i <= $3; i++) {
181		if (__collate_char_pri_table[(u_char)i].prim)
182			yyerror("Char 0x%02x duplicated", (u_char)i);
183		__collate_char_pri_table[(u_char)i].prim = prim_pri;
184	}
185}
186	| CHAIN {
187	if (chain_index >= TABLE_SIZE - 1)
188		yyerror("__collate_chain_pri_table overflow");
189	strcpy(__collate_chain_pri_table[chain_index].str, $1);
190	__collate_chain_pri_table[chain_index++].prim = prim_pri;
191}
192;
193sec_sub_item : CHAR {
194	if (__collate_char_pri_table[$1].prim)
195		yyerror("Char 0x%02x duplicated", $1);
196	__collate_char_pri_table[$1].prim = prim_pri;
197	__collate_char_pri_table[$1].sec = sec_pri++;
198}
199	| CHAR RANGE CHAR {
200	u_int i;
201
202	if ($3 <= $1)
203		yyerror("Illegal range 0x%02x -- 0x%02x",
204			$1, $3);
205
206	for (i = $1; i <= $3; i++) {
207		if (__collate_char_pri_table[(u_char)i].prim)
208			yyerror("Char 0x%02x duplicated", (u_char)i);
209		__collate_char_pri_table[(u_char)i].prim = prim_pri;
210		__collate_char_pri_table[(u_char)i].sec = sec_pri++;
211	}
212}
213	| CHAIN {
214	if (chain_index >= TABLE_SIZE - 1)
215		yyerror("__collate_chain_pri_table overflow");
216	strcpy(__collate_chain_pri_table[chain_index].str, $1);
217	__collate_chain_pri_table[chain_index].prim = prim_pri;
218	__collate_chain_pri_table[chain_index++].sec = sec_pri++;
219}
220;
221%%
222int
223main(ac, av)
224	char **av;
225{
226	int ch;
227
228#ifdef COLLATE_DEBUG
229	while((ch = getopt(ac, av, ":do:I:")) != EOF) {
230#else
231	while((ch = getopt(ac, av, ":o:I:")) != EOF) {
232#endif
233		switch (ch)
234		{
235#ifdef COLLATE_DEBUG
236		  case 'd':
237			debug++;
238			break;
239#endif
240		  case 'o':
241			out_file = optarg;
242			break;
243
244		  case 'I':
245			strcpy(map_name, optarg);
246			break;
247
248		  default:
249			usage();
250		}
251	}
252	ac -= optind;
253	av += optind;
254	if(ac > 0) {
255		if((yyin = fopen(*av, "r")) == 0)
256			err(EX_UNAVAILABLE, "can't open source file %s", *av);
257	}
258	for(ch = 0; ch <= UCHAR_MAX; ch++)
259		__collate_substitute_table[ch][0] = ch;
260	yyparse();
261	return 0;
262}
263
264static void
265usage()
266{
267	fprintf(stderr, "usage: colldef [-o out_file] [-I map_dir] [filename]\n");
268	exit(EX_USAGE);
269}
270
271void yyerror(char *fmt, ...)
272{
273	va_list ap;
274	char msg[128];
275
276	va_start(ap, fmt);
277	vsnprintf(msg, sizeof(msg), fmt, ap);
278	va_end(ap);
279	errx(EX_UNAVAILABLE, "%s near line %d", msg, line_no);
280}
281
282#ifdef COLLATE_DEBUG
283void
284collate_print_tables()
285{
286	int i;
287	struct __collate_st_chain_pri *p2;
288
289	printf("Substitute table:\n");
290	for (i = 0; i < UCHAR_MAX + 1; i++)
291	    if (i != *__collate_substitute_table[i])
292		printf("\t'%c' --> \"%s\"\n", i,
293		       __collate_substitute_table[i]);
294	printf("Chain priority table:\n");
295	for (p2 = __collate_chain_pri_table; p2->str[0]; p2++)
296		printf("\t\"%s\" : %d %d\n\n", p2->str, p2->prim, p2->sec);
297	printf("Char priority table:\n");
298	for (i = 0; i < UCHAR_MAX + 1; i++)
299		printf("\t'%c' : %d %d\n", i, __collate_char_pri_table[i].prim,
300		       __collate_char_pri_table[i].sec);
301}
302#endif
303