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- /* routines for printing error messages */
-
- #include "defs.h"
-
-
- void fatal(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(char *filename)
- {
- fprintf(stderr, "%s: f - cannot open \"%s\"\n", myname, filename);
- done(2);
- }
-
-
- 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(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: 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);
- }
-