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-rw-r--r--usr.bin/yacc/error.c389
1 files changed, 389 insertions, 0 deletions
diff --git a/usr.bin/yacc/error.c b/usr.bin/yacc/error.c
new file mode 100644
index 000000000000..9940dbc050c5
--- /dev/null
+++ b/usr.bin/yacc/error.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Robert Paul Corbett.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if 0
+#ifndef lint
+static char sccsid[] = "@(#)error.c 5.3 (Berkeley) 6/1/90";
+#endif
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/* routines for printing error messages */
+
+#include "defs.h"
+
+static void print_pos(char *, char *);
+
+void
+fatal(msg)
+const char *msg;
+{
+ warnx("f - %s", msg);
+ done(2);
+}
+
+
+void
+no_space()
+{
+ warnx("f - out of space");
+ done(2);
+}
+
+
+void
+open_error(filename)
+const char *filename;
+{
+ warnx("f - cannot open \"%s\"", filename);
+ done(2);
+}
+
+
+void
+unexpected_EOF()
+{
+ warnx("e - line %d of \"%s\", unexpected end-of-file",
+ lineno, input_file_name);
+ done(1);
+}
+
+
+static void
+print_pos(st_line, st_cptr)
+char *st_line;
+char *st_cptr;
+{
+ 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(st_lineno, st_line, st_cptr)
+int st_lineno;
+char *st_line;
+char *st_cptr;
+{
+ warnx("e - line %d of \"%s\", syntax error",
+ st_lineno, input_file_name);
+ print_pos(st_line, st_cptr);
+ done(1);
+}
+
+
+void
+unterminated_comment(c_lineno, c_line, c_cptr)
+int c_lineno;
+char *c_line;
+char *c_cptr;
+{
+ warnx("e - line %d of \"%s\", unmatched /*",
+ c_lineno, input_file_name);
+ print_pos(c_line, c_cptr);
+ done(1);
+}
+
+
+void
+unterminated_string(s_lineno, s_line, s_cptr)
+int s_lineno;
+char *s_line;
+char *s_cptr;
+{
+ warnx("e - line %d of \"%s\", unterminated string",
+ s_lineno, input_file_name);
+ print_pos(s_line, s_cptr);
+ done(1);
+}
+
+
+void
+unterminated_text(t_lineno, t_line, t_cptr)
+int t_lineno;
+char *t_line;
+char *t_cptr;
+{
+ warnx("e - line %d of \"%s\", unmatched %%{",
+ t_lineno, input_file_name);
+ print_pos(t_line, t_cptr);
+ done(1);
+}
+
+
+void
+unterminated_union(u_lineno, u_line, u_cptr)
+int u_lineno;
+char *u_line;
+char *u_cptr;
+{
+ warnx("e - line %d of \"%s\", unterminated %%union declaration",
+ u_lineno, input_file_name);
+ print_pos(u_line, u_cptr);
+ done(1);
+}
+
+
+void
+over_unionized(u_cptr)
+char *u_cptr;
+{
+ warnx("e - line %d of \"%s\", too many %%union declarations",
+ lineno, input_file_name);
+ print_pos(line, u_cptr);
+ done(1);
+}
+
+
+void
+illegal_tag(t_lineno, t_line, t_cptr)
+int t_lineno;
+char *t_line;
+char *t_cptr;
+{
+ warnx("e - line %d of \"%s\", illegal tag", t_lineno, input_file_name);
+ print_pos(t_line, t_cptr);
+ done(1);
+}
+
+
+void
+illegal_character(c_cptr)
+char *c_cptr;
+{
+ warnx("e - line %d of \"%s\", illegal character", lineno, input_file_name);
+ print_pos(line, c_cptr);
+ done(1);
+}
+
+
+void
+used_reserved(s)
+char *s;
+{
+ warnx("e - line %d of \"%s\", illegal use of reserved symbol %s",
+ lineno, input_file_name, s);
+ done(1);
+}
+
+
+void
+tokenized_start(s)
+char *s;
+{
+ warnx("e - line %d of \"%s\", the start symbol %s cannot be \
+declared to be a token", lineno, input_file_name, s);
+ done(1);
+}
+
+
+void
+retyped_warning(s)
+char *s;
+{
+ warnx("w - line %d of \"%s\", the type of %s has been redeclared",
+ lineno, input_file_name, s);
+}
+
+
+void
+reprec_warning(s)
+char *s;
+{
+ warnx("w - line %d of \"%s\", the precedence of %s has been redeclared",
+ lineno, input_file_name, s);
+}
+
+
+void
+revalued_warning(s)
+char *s;
+{
+ warnx("w - line %d of \"%s\", the value of %s has been redeclared",
+ lineno, input_file_name, s);
+}
+
+
+void
+terminal_start(s)
+char *s;
+{
+ warnx("e - line %d of \"%s\", the start symbol %s is a token",
+ lineno, input_file_name, s);
+ done(1);
+}
+
+
+void
+restarted_warning()
+{
+ warnx("w - line %d of \"%s\", the start symbol has been redeclared",
+ lineno, input_file_name);
+}
+
+
+void
+no_grammar()
+{
+ warnx("e - line %d of \"%s\", no grammar has been specified",
+ lineno, input_file_name);
+ done(1);
+}
+
+
+void
+terminal_lhs(s_lineno)
+int s_lineno;
+{
+ warnx("e - line %d of \"%s\", a token appears on the lhs of a production",
+ s_lineno, input_file_name);
+ done(1);
+}
+
+
+void
+prec_redeclared()
+{
+ warnx("w - line %d of \"%s\", conflicting %%prec specifiers",
+ lineno, input_file_name);
+}
+
+
+void
+unterminated_action(a_lineno, a_line, a_cptr)
+int a_lineno;
+char *a_line;
+char *a_cptr;
+{
+ warnx("e - line %d of \"%s\", unterminated action",
+ a_lineno, input_file_name);
+ print_pos(a_line, a_cptr);
+ done(1);
+}
+
+
+void
+dollar_warning(a_lineno, i)
+int a_lineno;
+int i;
+{
+ warnx("w - line %d of \"%s\", $%d references beyond the \
+end of the current rule", a_lineno, input_file_name, i);
+}
+
+
+void
+dollar_error(a_lineno, a_line, a_cptr)
+int a_lineno;
+char *a_line;
+char *a_cptr;
+{
+ warnx("e - line %d of \"%s\", illegal $-name", a_lineno, input_file_name);
+ print_pos(a_line, a_cptr);
+ done(1);
+}
+
+
+void
+untyped_lhs()
+{
+ warnx("e - line %d of \"%s\", $$ is untyped", lineno, input_file_name);
+ done(1);
+}
+
+
+void
+untyped_rhs(i, s)
+int i;
+char *s;
+{
+ warnx("e - line %d of \"%s\", $%d (%s) is untyped",
+ lineno, input_file_name, i, s);
+ done(1);
+}
+
+
+void
+unknown_rhs(i)
+int i;
+{
+ warnx("e - line %d of \"%s\", $%d is untyped", lineno, input_file_name, i);
+ done(1);
+}
+
+
+void
+default_action_warning()
+{
+ warnx("w - line %d of \"%s\", the default action assigns an \
+undefined value to $$", lineno, input_file_name);
+}
+
+
+void
+undefined_goal(s)
+char *s;
+{
+ warnx("e - the start symbol %s is undefined", s);
+ done(1);
+}
+
+
+void
+undefined_symbol_warning(s)
+char *s;
+{
+ warnx("w - the symbol %s is undefined", s);
+}
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