openafs/src/comerr/error_table.y
Marcus Watts 4a531cb706 death to register
in soviet compilers, compiler optimizes you.
stop providing dated (and annoying for debugging) register keywords.

Change-Id: Ibcac0aa3f353fe531b9be0beedca919fb947bfab
Reviewed-on: http://gerrit.openafs.org/2436
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2010-08-16 21:32:01 -07:00

405 lines
9.4 KiB
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%{
#include <afsconfig.h>
#include <afs/param.h>
/*
*
* Copyright 1986, 1987 by the MIT Student Information Processing Board
*
* For copyright info, see mit-sipb-cr.h.
*/
#ifndef AFS_NT40_ENV
#include <unistd.h>
#endif
#include <string.h>
#include <assert.h>
#include <ctype.h>
#ifdef AFS_NT40_ENV
#include <sys/types.h>
#include <afs/afsutil.h>
#else
#include <sys/time.h>
#endif
#include <sys/timeb.h>
#include "error_table.h"
#include "mit-sipb-cr.h"
/*
* If __STDC__ is defined, function prototypes in the SunOS 5.5.1 lex
* and yacc templates are visible. We turn this on explicitly on
* NT because the prototypes help supress certain warning from the
* Microsoft C compiler.
*/
#ifdef AFS_NT40_ENV
#include <malloc.h>
# ifndef __STDC__
# define __STDC__ 1
# endif
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "internal.h"
int char_to_num(char c);
char *gensym(const char *x);
char *current_token = (char *)NULL;
extern char *table_name;
char *ds(const char *string);
char *quote(const char *string);
void set_table_1num(char *string);
int char_to_1num(char c);
void add_ec(const char *name, const char *description);
void add_ec_val(const char *name, const char *val, const char *description);
void put_ecs(void);
void set_table_num(char *string);
void set_table_fun(char *astring);
extern int yylex (void);
%}
%union {
char *dynstr;
}
%token ERROR_TABLE ERROR_CODE_ENTRY END
%token <dynstr> STRING QUOTED_STRING
%type <dynstr> ec_name description table_id table_fun header
%{
%}
%start error_table
%%
error_table : ERROR_TABLE header error_codes END
{ table_name = ds($2);
current_token = table_name;
put_ecs(); }
;
header : table_fun table_id
{ current_token = $1;
$$ = $2; }
| table_id
{ current_token = $1;
set_table_fun(ds("1"));
$$ = $1;
}
;
table_fun : STRING
{ current_token = $1;
set_table_fun($1);
$$ = $1; }
;
table_id : STRING
{ current_token = $1;
set_table_num($1);
$$ = $1; }
;
error_codes : error_codes ec_entry
| ec_entry
;
ec_entry : ERROR_CODE_ENTRY ec_name ',' description
{ add_ec($2, $4);
free($2);
free($4); }
| ERROR_CODE_ENTRY ec_name '=' STRING ',' description
{ add_ec_val($2, $4, $6);
free($2);
free($4);
free($6);
}
;
ec_name : STRING
{ $$ = ds($1);
current_token = $$; }
;
description : QUOTED_STRING
{ $$ = ds($1);
current_token = $$; }
;
%%
/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
*
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
*/
extern FILE *hfile, *cfile, *msfile;
extern int use_msf;
static afs_int32 gensym_n = 0;
char *gensym(const char *x)
{
char *symbol;
if (!gensym_n) {
struct timeval tv;
gettimeofday(&tv, (void *)0);
gensym_n = (tv.tv_sec%10000)*100 + tv.tv_usec/10000;
}
symbol = (char *)malloc(32 * sizeof(char));
gensym_n++;
sprintf(symbol, "et%ld", (long int) gensym_n);
return(symbol);
}
char *
ds(const char *string)
{
char *rv;
rv = (char *)malloc(strlen(string)+1);
strcpy(rv, string);
return(rv);
}
char *
quote(const char *string)
{
char *rv;
rv = (char *)malloc(strlen(string)+3);
strcpy(rv, "\"");
strcat(rv, string);
strcat(rv, "\"");
return(rv);
}
afs_int32 table_number = 0;
int current = 0;
char **error_codes = (char **)NULL;
void add_ec(const char *name, const char *description)
{
if (msfile) {
if (current > 0)
#ifndef sun
fprintf(msfile, "%d\t%s\n", current, description);
#else
fprintf(msfile, "%d %s\n", current, description);
#endif /* !sun */
} else {
fprintf(cfile, "\t\"%s\",\n", description);
}
if (error_codes == (char **)NULL) {
error_codes = (char **)malloc(sizeof(char *));
*error_codes = (char *)NULL;
}
error_codes = (char **)realloc((char *)error_codes,
(current + 2)*sizeof(char *));
error_codes[current++] = ds(name);
error_codes[current] = (char *)NULL;
}
void add_ec_val(const char *name, const char *val, const char *description)
{
const int ncurrent = atoi(val);
if (ncurrent < current) {
printf("Error code %s (%d) out of order", name,
current);
return;
}
while (ncurrent > current) {
if (!msfile)
fputs("\t(char *)NULL,\n", cfile);
current++;
}
if (msfile) {
if (current > 0)
#ifndef sun
fprintf(msfile, "%d\t%s\n", current, description);
#else
fprintf(msfile, "%d %s\n", current, description);
#endif /* ! sun */
} else {
fprintf(cfile, "\t\"%s\",\n", description);
}
if (error_codes == (char **)NULL) {
error_codes = (char **)malloc(sizeof(char *));
*error_codes = (char *)NULL;
}
error_codes = (char **)realloc((char *)error_codes,
(current + 2)*sizeof(char *));
error_codes[current++] = ds(name);
error_codes[current] = (char *)NULL;
}
void put_ecs(void)
{
int i;
for (i = 0; i < current; i++) {
if (error_codes[i] != (char *)NULL)
fprintf(hfile, "#define %-40s (%ldL)\n",
error_codes[i], (long int) table_number + i);
}
}
/*
* char_to_num -- maps letters and numbers into a small numbering space
* uppercase -> 1-26
* lowercase -> 27-52
* digits -> 53-62
* underscore-> 63
*/
static const char char_set[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
int char_to_num(char c)
{
const char *where;
int diff;
where = strchr (char_set, c);
if (where) {
diff = where - char_set + 1;
assert (diff < (1 << ERRCODE_RANGE));
return diff;
}
else if (isprint (c))
fprintf (stderr,
"Illegal character `%c' in error table name\n",
c);
else
fprintf (stderr,
"Illegal character %03o in error table name\n",
c);
exit (1);
}
void set_table_num(char *string)
{
if (msfile) {
set_table_1num(string);
return;
}
if (strlen(string) > 4) {
fprintf(stderr, "Table name %s too long, truncated ",
string);
string[4] = '\0';
fprintf(stderr, "to %s\n", string);
}
if (char_to_num (string[0]) > char_to_num ('z')) {
fprintf (stderr, "%s%s%s%s",
"First character of error table name must be ",
"a letter; name ``",
string, "'' rejected\n");
exit (1);
}
while (*string != '\0') {
table_number = (table_number << BITS_PER_CHAR)
+ char_to_num(*string);
string++;
}
table_number = table_number << ERRCODE_RANGE;
}
void set_table_fun(char *astring)
{
char *tp;
unsigned int tc;
for(tp=astring; (tc = *tp) != 0; tp++) {
if (!isdigit(tc)) {
fprintf(stderr, "Table function '%s' must be a decimal integer.\n",
astring);
exit(1);
}
}
if (msfile)
table_number += (atoi(astring)) << 28;
}
/* for compatibility with old comerr's, we truncate package name to 4
* characters, but only store first 3 in the error code. Note that this
* function, as a side effect, truncates the table name down to 4 chars.
*/
void set_table_1num(char *string)
{
afs_int32 temp;
int ctr;
if ((temp = strlen(string)) > 4) {
fprintf(stderr, "Table name %s too long, truncated ",
string);
string[4] = '\0';
fprintf(stderr, "to %s\n", string);
}
if (temp == 4) {
fprintf(stderr, "Table name %s too long, only 3 characters fit in error code.\n",
string);
}
if (char_to_1num (string[0]) > char_to_1num ('z')) {
fprintf (stderr, "%s%s%s%s",
"First character of error table name must be ",
"a letter; name ``",
string, "'' rejected\n");
exit (1);
}
temp = 0;
for(ctr=0; ctr < 3; ctr++) { /* copy at most 3 chars to integer */
if (*string == '\0') break; /* and watch for early end */
temp = (temp * 050) /* "radix fifty" is base 050 = 40 */
+ char_to_1num(*string);
string++;
}
table_number += temp << 12;
}
/*
* char_to_num -- maps letters and numbers into very small space
* 0-9 -> 0-9
* mixed case -> 10-35
* _ -> 36
* others are reserved
*/
static const char char_1set[] =
"abcdefghijklmnopqrstuvwxyz_0123456789";
int char_to_1num(char c)
{
const char *where;
int diff;
if (isupper(c)) c = tolower(c);
where = strchr (char_1set, c);
if (where) {
/* start at 1 so we can decode */
diff = where - char_1set;
assert (diff < 050); /* it is radix 50, after all */
return diff;
}
else if (isprint (c))
fprintf (stderr,
"Illegal character `%c' in error table name\n",
c);
else
fprintf (stderr,
"Illegal character %03o in error table name\n",
c);
exit (1);
}
#ifdef AFS_NT40_ENV
#include "et_lex.lex_nt.c"
#else
#include "et_lex.lex.c"
#endif