freebsd-dev/contrib/byacc/error.c
Baptiste Daroussin 0c8de5b03c Update to byacc 20140409
Among all the modifications, this new byacc also solves a 14 year old bug [1]

PR:		bin/23254 [1]
Submitted by:	marka@nominum.com [1]
MFC after:	3 weeks
2014-04-23 05:57:45 +00:00

403 lines
8.9 KiB
C

/* $Id: error.c,v 1.11 2014/04/07 22:22:49 tom Exp $ */
/* routines for printing error messages */
#include "defs.h"
void
fatal(const char *msg)
{
fprintf(stderr, "%s: f - %s\n", myname, msg);
done(2);
}
void
no_space(void)
{
fprintf(stderr, "%s: f - out of space\n", myname);
done(2);
}
void
open_error(const char *filename)
{
fprintf(stderr, "%s: f - cannot open \"%s\"\n", myname, filename);
done(2);
}
void
missing_brace(void)
{
fprintf(stderr, "%s: e - line %d of \"%s\", missing '}'\n",
myname, lineno, input_file_name);
done(1);
}
void
unexpected_EOF(void)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unexpected end-of-file\n",
myname, lineno, input_file_name);
done(1);
}
static void
print_pos(const char *st_line, const char *st_cptr)
{
const char *s;
if (st_line == 0)
return;
for (s = st_line; *s != '\n'; ++s)
{
if (isprint(UCH(*s)) || *s == '\t')
putc(*s, stderr);
else
putc('?', stderr);
}
putc('\n', stderr);
for (s = st_line; s < st_cptr; ++s)
{
if (*s == '\t')
putc('\t', stderr);
else
putc(' ', stderr);
}
putc('^', stderr);
putc('\n', stderr);
}
void
syntax_error(int st_lineno, char *st_line, char *st_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", syntax error\n",
myname, st_lineno, input_file_name);
print_pos(st_line, st_cptr);
done(1);
}
void
unterminated_comment(int c_lineno, char *c_line, char *c_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unmatched /*\n",
myname, c_lineno, input_file_name);
print_pos(c_line, c_cptr);
done(1);
}
void
unterminated_string(int s_lineno, char *s_line, char *s_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unterminated string\n",
myname, s_lineno, input_file_name);
print_pos(s_line, s_cptr);
done(1);
}
void
unterminated_text(int t_lineno, char *t_line, char *t_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unmatched %%{\n",
myname, t_lineno, input_file_name);
print_pos(t_line, t_cptr);
done(1);
}
void
unterminated_union(int u_lineno, char *u_line, char *u_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unterminated %%union \
declaration\n", myname, u_lineno, input_file_name);
print_pos(u_line, u_cptr);
done(1);
}
void
over_unionized(char *u_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", too many %%union \
declarations\n", myname, lineno, input_file_name);
print_pos(line, u_cptr);
done(1);
}
void
illegal_tag(int t_lineno, char *t_line, char *t_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", illegal tag\n",
myname, t_lineno, input_file_name);
print_pos(t_line, t_cptr);
done(1);
}
void
illegal_character(char *c_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", illegal character\n",
myname, lineno, input_file_name);
print_pos(line, c_cptr);
done(1);
}
void
used_reserved(char *s)
{
fprintf(stderr,
"%s: e - line %d of \"%s\", illegal use of reserved symbol \
%s\n", myname, lineno, input_file_name, s);
done(1);
}
void
tokenized_start(char *s)
{
fprintf(stderr,
"%s: e - line %d of \"%s\", the start symbol %s cannot be \
declared to be a token\n", myname, lineno, input_file_name, s);
done(1);
}
void
retyped_warning(char *s)
{
fprintf(stderr, "%s: w - line %d of \"%s\", the type of %s has been \
redeclared\n", myname, lineno, input_file_name, s);
}
void
reprec_warning(char *s)
{
fprintf(stderr,
"%s: w - line %d of \"%s\", the precedence of %s has been \
redeclared\n", myname, lineno, input_file_name, s);
}
void
revalued_warning(char *s)
{
fprintf(stderr, "%s: w - line %d of \"%s\", the value of %s has been \
redeclared\n", myname, lineno, input_file_name, s);
}
void
terminal_start(char *s)
{
fprintf(stderr, "%s: e - line %d of \"%s\", the start symbol %s is a \
token\n", myname, lineno, input_file_name, s);
done(1);
}
void
restarted_warning(void)
{
fprintf(stderr, "%s: w - line %d of \"%s\", the start symbol has been \
redeclared\n", myname, lineno, input_file_name);
}
void
no_grammar(void)
{
fprintf(stderr, "%s: e - line %d of \"%s\", no grammar has been \
specified\n", myname, lineno, input_file_name);
done(1);
}
void
terminal_lhs(int s_lineno)
{
fprintf(stderr, "%s: e - line %d of \"%s\", a token appears on the lhs \
of a production\n", myname, s_lineno, input_file_name);
done(1);
}
void
prec_redeclared(void)
{
fprintf(stderr, "%s: w - line %d of \"%s\", conflicting %%prec \
specifiers\n", myname, lineno, input_file_name);
}
void
unterminated_action(int a_lineno, char *a_line, char *a_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", unterminated action\n",
myname, a_lineno, input_file_name);
print_pos(a_line, a_cptr);
done(1);
}
void
dollar_warning(int a_lineno, int i)
{
fprintf(stderr, "%s: w - line %d of \"%s\", $%d references beyond the \
end of the current rule\n", myname, a_lineno, input_file_name, i);
}
void
dollar_error(int a_lineno, char *a_line, char *a_cptr)
{
fprintf(stderr, "%s: e - line %d of \"%s\", illegal $-name\n",
myname, a_lineno, input_file_name);
print_pos(a_line, a_cptr);
done(1);
}
void
untyped_lhs(void)
{
fprintf(stderr, "%s: e - line %d of \"%s\", $$ is untyped\n",
myname, lineno, input_file_name);
done(1);
}
void
untyped_rhs(int i, char *s)
{
fprintf(stderr, "%s: e - line %d of \"%s\", $%d (%s) is untyped\n",
myname, lineno, input_file_name, i, s);
done(1);
}
void
unknown_rhs(int i)
{
fprintf(stderr, "%s: e - line %d of \"%s\", $%d is untyped\n",
myname, lineno, input_file_name, i);
done(1);
}
void
default_action_warning(void)
{
fprintf(stderr,
"%s: w - line %d of \"%s\", the default action assigns an \
undefined value to $$\n", myname, lineno, input_file_name);
}
void
undefined_goal(char *s)
{
fprintf(stderr, "%s: e - the start symbol %s is undefined\n", myname, s);
done(1);
}
void
undefined_symbol_warning(char *s)
{
fprintf(stderr, "%s: w - the symbol %s is undefined\n", myname, s);
}
#if ! defined(YYBTYACC)
void
unsupported_flag_warning(const char *flag, const char *details)
{
fprintf(stderr, "%s: w - %s flag unsupported, %s\n",
myname, flag, details);
}
#endif
#if defined(YYBTYACC)
void
at_warning(int a_lineno, int i)
{
fprintf(stderr, "%s: w - line %d of \"%s\", @%d references beyond the \
end of the current rule\n", myname, a_lineno, input_file_name, i);
}
void
at_error(int a_lineno, char *a_line, char *a_cptr)
{
fprintf(stderr,
"%s: e - line %d of \"%s\", illegal @$ or @N reference\n",
myname, a_lineno, input_file_name);
print_pos(a_line, a_cptr);
done(1);
}
void
unterminated_arglist(int a_lineno, char *a_line, char *a_cptr)
{
fprintf(stderr,
"%s: e - line %d of \"%s\", unterminated argument list\n",
myname, a_lineno, input_file_name);
print_pos(a_line, a_cptr);
done(1);
}
void
arg_number_disagree_warning(int a_lineno, char *a_name)
{
fprintf(stderr, "%s: w - line %d of \"%s\", number of arguments of %s "
"doesn't agree with previous declaration\n",
myname, a_lineno, input_file_name, a_name);
}
void
bad_formals(void)
{
fprintf(stderr, "%s: e - line %d of \"%s\", bad formal argument list\n",
myname, lineno, input_file_name);
print_pos(line, cptr);
done(1);
}
void
arg_type_disagree_warning(int a_lineno, int i, char *a_name)
{
fprintf(stderr, "%s: w - line %d of \"%s\", type of argument %d "
"to %s doesn't agree with previous declaration\n",
myname, a_lineno, input_file_name, i, a_name);
}
void
unknown_arg_warning(int d_lineno, const char *dlr_opt, const char *d_arg, const char
*d_line, const char *d_cptr)
{
fprintf(stderr, "%s: w - line %d of \"%s\", unknown argument %s%s\n",
myname, d_lineno, input_file_name, dlr_opt, d_arg);
print_pos(d_line, d_cptr);
}
void
untyped_arg_warning(int a_lineno, const char *dlr_opt, const char *a_name)
{
fprintf(stderr, "%s: w - line %d of \"%s\", untyped argument %s%s\n",
myname, a_lineno, input_file_name, dlr_opt, a_name);
}
void
wrong_number_args_warning(const char *which, const char *a_name)
{
fprintf(stderr,
"%s: w - line %d of \"%s\", wrong number of %sarguments for %s\n",
myname, lineno, input_file_name, which, a_name);
print_pos(line, cptr);
}
void
wrong_type_for_arg_warning(int i, char *a_name)
{
fprintf(stderr,
"%s: w - line %d of \"%s\", wrong type for default argument %d to %s\n",
myname, lineno, input_file_name, i, a_name);
print_pos(line, cptr);
}
void
start_requires_args(char *a_name)
{
fprintf(stderr,
"%s: w - line %d of \"%s\", start symbol %s requires arguments\n",
myname, 0, input_file_name, a_name);
}
void
destructor_redeclared_warning(int a_lineno, char *a_line, char *a_cptr)
{
fprintf(stderr, "%s: w - line %d of \"%s\", destructor redeclared\n",
myname, a_lineno, input_file_name);
print_pos(a_line, a_cptr);
}
#endif