/* routines for printing error messages */ #include "defs.h" void fatal(char *msg){ fprintf(stderr, "%s: fatal - %s\n", myname, msg); done(2);} void no_space(void){ fprintf(stderr, "%s: fatal - out of space\n", myname); done(2);} void open_error(char *filename){ fprintf(stderr, "%s: fatal - cannot open \"%s\"\n", myname, filename); done(2);} void unexpected_EOF(void){ fprintf(stderr, "%s: error - line %d of \"%s\", unexpected end-of-file\n", myname, lineno, input_file_name); done(1);} void print_pos(char *st_line, char *st_cptr){ register char *s; if (st_line == 0) return; for (s = st_line; *s != '\n'; ++s) { if (isprint(*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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: warning - 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: warning - 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: warning - 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: error - line %d of \"%s\", the entry point %s is a \token\n", myname, lineno, input_file_name, s); done(1);} void too_many_entries(void){ fprintf(stderr, "%s: error - line %d of \"%s\", more than 256 entry points\n", myname, lineno, input_file_name); done(1);} void no_grammar(void){ fprintf(stderr, "%s: error - 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: error - 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: warning - 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: error - 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: warning - 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: error - 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: error - line %d of \"%s\", $$ is untyped\n", myname, lineno, input_file_name); done(1);} void untyped_rhs(int i, char *s){ fprintf(stderr, "%s: error - line %d of \"%s\", $%d (%s) is untyped\n", myname, lineno, input_file_name, i, s); done(1);} void unknown_rhs(int i){ fprintf(stderr, "%s: error - line %d of \"%s\", $%d is unbound\n", myname, lineno, input_file_name, i); done(1);} void illegal_token_ref(int i, char *name){ fprintf(stderr, "%s: error - line %d of \"%s\", $%d refers to terminal `%s', which has no argument\n", myname, lineno, input_file_name, i, name); done(1);} void default_action_warning(void){ fprintf(stderr, "%s: warning - line %d of \"%s\", the default action assigns an \undefined value to $$\n", myname, lineno, input_file_name);} void undefined_goal(char *s){ fprintf(stderr, "%s: error - the start symbol %s is undefined\n", myname, s); done(1);} void undefined_symbol_warning(char *s){ fprintf(stderr, "%s: warning - the symbol %s is undefined\n", myname, s);} void missing_type(char *s){ fprintf(stderr, "%s: error - the symbol '%s' has no %%type declaration\n", myname, s); done(1);}
/* routines for printing error messages */
#include "defs.h"
void fatal(char *msg)
{
fprintf(stderr, "%s: fatal - %s\n", myname, msg);
done(2);
}
void no_space(void)
{
fprintf(stderr, "%s: fatal - out of space\n", myname);
done(2);
}
void open_error(char *filename)
{
fprintf(stderr, "%s: fatal - cannot open \"%s\"\n", myname, filename);
done(2);
}
void unexpected_EOF(void)
{
fprintf(stderr, "%s: error - line %d of \"%s\", unexpected end-of-file\n",
myname, lineno, input_file_name);
done(1);
}
void print_pos(char *st_line, char *st_cptr)
{
register char *s;
if (st_line == 0) return;
for (s = st_line; *s != '\n'; ++s)
{
if (isprint(*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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: error - 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: warning - 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: warning - 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: warning - 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: error - line %d of \"%s\", the entry point %s is a \
token\n", myname, lineno, input_file_name, s);
done(1);
}
void too_many_entries(void)
{
fprintf(stderr, "%s: error - line %d of \"%s\", more than 256 entry points\n",
myname, lineno, input_file_name);
done(1);
}
void no_grammar(void)
{
fprintf(stderr, "%s: error - 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: error - 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: warning - 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: error - 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: warning - 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: error - 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: error - line %d of \"%s\", $$ is untyped\n",
myname, lineno, input_file_name);
done(1);
}
void untyped_rhs(int i, char *s)
{
fprintf(stderr, "%s: error - line %d of \"%s\", $%d (%s) is untyped\n",
myname, lineno, input_file_name, i, s);
done(1);
}
void unknown_rhs(int i)
{
fprintf(stderr, "%s: error - line %d of \"%s\", $%d is unbound\n",
myname, lineno, input_file_name, i);
done(1);
}
void illegal_token_ref(int i, char *name)
{
fprintf(stderr, "%s: error - line %d of \"%s\", $%d refers to terminal `%s', which has no argument\n",
myname, lineno, input_file_name, i, name);
done(1);
}
void default_action_warning(void)
{
fprintf(stderr, "%s: warning - line %d of \"%s\", the default action assigns an \
undefined value to $$\n", myname, lineno, input_file_name);
}
void undefined_goal(char *s)
{
fprintf(stderr, "%s: error - the start symbol %s is undefined\n", myname, s);
done(1);
}
void undefined_symbol_warning(char *s)
{
fprintf(stderr, "%s: warning - the symbol %s is undefined\n", myname, s);
}
void missing_type(char *s)
{
fprintf(stderr, "%s: error - the symbol '%s' has no %%type declaration\n", myname, s);
done(1);
}