GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/ctags/yacc.c Lines: 0 42 0.0 %
Date: 2017-11-13 Branches: 0 72 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: yacc.c,v 1.9 2012/03/04 04:05:15 fgsch Exp $	*/
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/*	$NetBSD: yacc.c,v 1.3 1995/03/26 20:14:12 glass Exp $	*/
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/*
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 * Copyright (c) 1987, 1993, 1994
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include "ctags.h"
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/*
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 * y_entries:
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 *	find the yacc tags and put them in.
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 */
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void
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y_entries(void)
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{
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	int	c;
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	char	*sp;
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	bool	in_rule;
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	char	tok[MAXTOKEN];
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	in_rule = NO;
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	while (GETC(!=, EOF))
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		switch (c) {
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		case '\n':
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			SETLINE;
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			/* FALLTHROUGH */
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		case ' ':
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		case '\f':
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		case '\r':
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		case '\t':
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			break;
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		case '{':
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			if (skip_key('}'))
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				in_rule = NO;
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			break;
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		case '\'':
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		case '"':
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			if (skip_key(c))
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				in_rule = NO;
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			break;
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		case '%':
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			if (GETC(==, '%'))
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				return;
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			(void)ungetc(c, inf);
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			break;
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		case '/':
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			if (GETC(==, '*'))
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				skip_comment('*');
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			else
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				(void)ungetc(c, inf);
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			break;
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		case '|':
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		case ';':
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			in_rule = NO;
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			break;
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		default:
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			if (in_rule || (!isalpha(c) && c != '.' && c != '_'))
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				break;
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			sp = tok;
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			*sp++ = c;
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			while (GETC(!=, EOF) && (intoken(c) || c == '.'))
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				*sp++ = c;
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			*sp = EOS;
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			get_line();		/* may change before ':' */
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			while (iswhite(c)) {
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				if (c == '\n')
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					SETLINE;
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				if (GETC(==, EOF))
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					return;
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			}
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			if (c == ':') {
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				pfnote(tok, lineno);
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				in_rule = YES;
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			}
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			else
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				(void)ungetc(c, inf);
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		}
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}
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/*
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 * toss_yysec --
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 *	throw away lines up to the next "\n%%\n"
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 */
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void
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toss_yysec(void)
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{
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	int	c;			/* read character */
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	int	state;
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	/*
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	 * state == 0 : waiting
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	 * state == 1 : received a newline
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	 * state == 2 : received first %
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	 * state == 3 : received second %
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	 */
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	lineftell = ftell(inf);
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	for (state = 0; GETC(!=, EOF);)
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		switch (c) {
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		case '\n':
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			++lineno;
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			lineftell = ftell(inf);
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			if (state == 3)		/* done! */
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				return;
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			state = 1;		/* start over */
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			break;
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		case '%':
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			if (state)		/* if 1 or 2 */
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				++state;	/* goto 3 */
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			break;
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		default:
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			state = 0;		/* reset */
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			break;
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		}
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}