freebsd-dev/usr.bin/colldef/parse.y
Ruslan Ermilov 923d9b0109 Zero out the entire "struct __collate_st_chain_pri", or garbage
appears in LC_COLLATE files (due to alignment).  An alternative
would be to bump STR_LEN to 16.

(This is in preparation to make LC_COLLATE files architecture
independent.)
2005-02-27 14:05:38 +00:00

370 lines
9.9 KiB
Plaintext

%{
/*-
* Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
* at Electronni Visti IA, Kiev, Ukraine.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <arpa/inet.h>
#include <err.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sysexits.h>
#include "collate.h"
#include "common.h"
extern FILE *yyin;
void yyerror(const char *fmt, ...) __printflike(1, 2);
int yyparse(void);
int yylex(void);
static void usage(void);
static void collate_print_tables(void);
char map_name[FILENAME_MAX] = ".";
char curr_chain[STR_LEN];
char __collate_version[STR_LEN];
u_char charmap_table[UCHAR_MAX + 1][CHARMAP_SYMBOL_LEN];
#undef __collate_substitute_table
u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN];
#undef __collate_char_pri_table
struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1];
struct __collate_st_chain_pri *__collate_chain_pri_table;
int chain_index;
int prim_pri = 1, sec_pri = 1;
#ifdef COLLATE_DEBUG
int debug;
#endif
const char *out_file = "LC_COLLATE";
%}
%union {
u_char ch;
u_char str[BUFSIZE];
}
%token SUBSTITUTE WITH ORDER RANGE
%token <str> STRING
%token <str> DEFN
%token <ch> CHAR
%%
collate : statment_list
;
statment_list : statment
| statment_list '\n' statment
;
statment :
| charmap
| substitute
| order
;
charmap : DEFN CHAR {
if (strlen($1) + 1 > CHARMAP_SYMBOL_LEN)
yyerror("Charmap symbol name '%s' is too long", $1);
strcpy(charmap_table[$2], $1);
}
;
substitute : SUBSTITUTE CHAR WITH STRING {
if ($2 == '\0')
yyerror("NUL character can't be substituted");
if (strchr($4, $2) != NULL)
yyerror("Char 0x%02x substitution is recursive", $2);
if (strlen($4) + 1 > STR_LEN)
yyerror("Char 0x%02x substitution is too long", $2);
strcpy(__collate_substitute_table[$2], $4);
}
;
order : ORDER order_list {
FILE *fp;
int ch, substed, ordered;
uint32_t u32;
for (ch = 0; ch < UCHAR_MAX + 1; ch++) {
substed = (__collate_substitute_table[ch][0] != ch);
ordered = !!__collate_char_pri_table[ch].prim;
if (!ordered && !substed)
yyerror("Char 0x%02x not found", ch);
if (substed && ordered)
yyerror("Char 0x%02x can't be ordered since substituted", ch);
}
if ((__collate_chain_pri_table = realloc(__collate_chain_pri_table,
sizeof(*__collate_chain_pri_table) * (chain_index + 1))) == NULL)
yyerror("can't grow chain table");
(void)memset(&__collate_chain_pri_table[chain_index], 0,
sizeof(__collate_chain_pri_table[0]));
chain_index++;
if ((fp = fopen(out_file, "w")) == NULL)
err(EX_UNAVAILABLE, "can't open destination file %s",
out_file);
strcpy(__collate_version, COLLATE_VERSION1_1);
if (fwrite(__collate_version, sizeof(__collate_version), 1, fp) != 1)
err(EX_IOERR,
"IO error writting collate version to destination file %s",
out_file);
u32 = htonl(chain_index);
if (fwrite(&u32, sizeof(u32), 1, fp) != 1)
err(EX_IOERR,
"IO error writting chains number to destination file %s",
out_file);
if (fwrite(__collate_substitute_table,
sizeof(__collate_substitute_table), 1, fp) != 1)
err(EX_IOERR,
"IO error writting substitute table to destination file %s",
out_file);
if (fwrite(__collate_char_pri_table,
sizeof(__collate_char_pri_table), 1, fp) != 1)
err(EX_IOERR,
"IO error writting char table to destination file %s",
out_file);
if (fwrite(__collate_chain_pri_table,
sizeof(*__collate_chain_pri_table), chain_index, fp) !=
(size_t)chain_index)
err(EX_IOERR,
"IO error writting chain table to destination file %s",
out_file);
if (fclose(fp) != 0)
err(EX_IOERR, "IO error closing destination file %s",
out_file);
#ifdef COLLATE_DEBUG
if (debug)
collate_print_tables();
#endif
exit(EX_OK);
}
;
order_list : item
| order_list ';' item
;
chain : CHAR CHAR {
curr_chain[0] = $1;
curr_chain[1] = $2;
if (curr_chain[0] == '\0' || curr_chain[1] == '\0')
yyerror("\\0 can't be chained");
curr_chain[2] = '\0';
}
| chain CHAR {
static char tb[2];
tb[0] = $2;
if (tb[0] == '\0')
yyerror("\\0 can't be chained");
if (strlen(curr_chain) + 2 > STR_LEN)
yyerror("Chain '%s' grows too long", curr_chain);
(void)strcat(curr_chain, tb);
}
;
item : CHAR {
if (__collate_char_pri_table[$1].prim)
yyerror("Char 0x%02x duplicated", $1);
__collate_char_pri_table[$1].prim = prim_pri++;
}
| chain {
if ((__collate_chain_pri_table = realloc(__collate_chain_pri_table,
sizeof(*__collate_chain_pri_table) * (chain_index + 1))) == NULL)
yyerror("can't grow chain table");
(void)memset(&__collate_chain_pri_table[chain_index], 0,
sizeof(__collate_chain_pri_table[0]));
(void)strcpy(__collate_chain_pri_table[chain_index].str, curr_chain);
__collate_chain_pri_table[chain_index].prim = prim_pri++;
chain_index++;
}
| CHAR RANGE CHAR {
u_int i;
if ($3 <= $1)
yyerror("Illegal range 0x%02x -- 0x%02x", $1, $3);
for (i = $1; i <= $3; i++) {
if (__collate_char_pri_table[(u_char)i].prim)
yyerror("Char 0x%02x duplicated", (u_char)i);
__collate_char_pri_table[(u_char)i].prim = prim_pri++;
}
}
| '{' prim_order_list '}' {
prim_pri++;
}
| '(' sec_order_list ')' {
prim_pri++;
sec_pri = 1;
}
;
prim_order_list : prim_sub_item
| prim_order_list ',' prim_sub_item
;
sec_order_list : sec_sub_item
| sec_order_list ',' sec_sub_item
;
prim_sub_item : CHAR {
if (__collate_char_pri_table[$1].prim)
yyerror("Char 0x%02x duplicated", $1);
__collate_char_pri_table[$1].prim = prim_pri;
}
| CHAR RANGE CHAR {
u_int i;
if ($3 <= $1)
yyerror("Illegal range 0x%02x -- 0x%02x",
$1, $3);
for (i = $1; i <= $3; i++) {
if (__collate_char_pri_table[(u_char)i].prim)
yyerror("Char 0x%02x duplicated", (u_char)i);
__collate_char_pri_table[(u_char)i].prim = prim_pri;
}
}
| chain {
if ((__collate_chain_pri_table = realloc(__collate_chain_pri_table,
sizeof(*__collate_chain_pri_table) * (chain_index + 1))) == NULL)
yyerror("can't grow chain table");
(void)memset(&__collate_chain_pri_table[chain_index], 0,
sizeof(__collate_chain_pri_table[0]));
(void)strcpy(__collate_chain_pri_table[chain_index].str, curr_chain);
__collate_chain_pri_table[chain_index].prim = prim_pri;
chain_index++;
}
;
sec_sub_item : CHAR {
if (__collate_char_pri_table[$1].prim)
yyerror("Char 0x%02x duplicated", $1);
__collate_char_pri_table[$1].prim = prim_pri;
__collate_char_pri_table[$1].sec = sec_pri++;
}
| CHAR RANGE CHAR {
u_int i;
if ($3 <= $1)
yyerror("Illegal range 0x%02x -- 0x%02x",
$1, $3);
for (i = $1; i <= $3; i++) {
if (__collate_char_pri_table[(u_char)i].prim)
yyerror("Char 0x%02x duplicated", (u_char)i);
__collate_char_pri_table[(u_char)i].prim = prim_pri;
__collate_char_pri_table[(u_char)i].sec = sec_pri++;
}
}
| chain {
if ((__collate_chain_pri_table = realloc(__collate_chain_pri_table,
sizeof(*__collate_chain_pri_table) * (chain_index + 1))) == NULL)
yyerror("can't grow chain table");
(void)memset(&__collate_chain_pri_table[chain_index], 0,
sizeof(__collate_chain_pri_table[0]));
(void)strcpy(__collate_chain_pri_table[chain_index].str, curr_chain);
__collate_chain_pri_table[chain_index].prim = prim_pri;
__collate_chain_pri_table[chain_index].sec = sec_pri++;
chain_index++;
}
;
%%
int
main(int ac, char **av)
{
int ch;
#ifdef COLLATE_DEBUG
while((ch = getopt(ac, av, ":do:I:")) != -1) {
#else
while((ch = getopt(ac, av, ":o:I:")) != -1) {
#endif
switch (ch)
{
#ifdef COLLATE_DEBUG
case 'd':
debug++;
break;
#endif
case 'o':
out_file = optarg;
break;
case 'I':
strlcpy(map_name, optarg, sizeof(map_name));
break;
default:
usage();
}
}
ac -= optind;
av += optind;
if (ac > 0) {
if ((yyin = fopen(*av, "r")) == NULL)
err(EX_UNAVAILABLE, "can't open source file %s", *av);
}
for (ch = 0; ch <= UCHAR_MAX; ch++)
__collate_substitute_table[ch][0] = ch;
yyparse();
return 0;
}
static void
usage(void)
{
fprintf(stderr, "usage: colldef [-o out_file] [-I map_dir] [filename]\n");
exit(EX_USAGE);
}
void
yyerror(const char *fmt, ...)
{
va_list ap;
char msg[128];
va_start(ap, fmt);
vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
errx(EX_UNAVAILABLE, "%s near line %d", msg, line_no);
}
#ifdef COLLATE_DEBUG
static void
collate_print_tables(void)
{
int i;
struct __collate_st_chain_pri *p2;
printf("Substitute table:\n");
for (i = 0; i < UCHAR_MAX + 1; i++)
if (i != *__collate_substitute_table[i])
printf("\t'%c' --> \"%s\"\n", i,
__collate_substitute_table[i]);
printf("Chain priority table:\n");
for (p2 = __collate_chain_pri_table; p2->str[0] != '\0'; p2++)
printf("\t\"%s\" : %d %d\n", p2->str, p2->prim, p2->sec);
printf("Char priority table:\n");
for (i = 0; i < UCHAR_MAX + 1; i++)
printf("\t'%c' : %d %d\n", i, __collate_char_pri_table[i].prim,
__collate_char_pri_table[i].sec);
}
#endif