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      1 /*	$NetBSD: print.c,v 1.11 2025/08/02 05:58:42 kre Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1987, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #if HAVE_NBTOOL_CONFIG_H
     33 #include "nbtool_config.h"
     34 #endif
     35 
     36 #include <sys/cdefs.h>
     37 #if defined(__RCSID) && !defined(lint)
     38 #if 0
     39 static char sccsid[] = "@(#)print.c	8.3 (Berkeley) 4/2/94";
     40 #else
     41 __RCSID("$NetBSD: print.c,v 1.11 2025/08/02 05:58:42 kre Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <limits.h>
     46 #include <stdio.h>
     47 #include <stdlib.h>
     48 #include <string.h>
     49 #include <unistd.h>
     50 
     51 #include "ctags.h"
     52 
     53 /*
     54  * get_line --
     55  *	get the line the token of interest occurred on,
     56  *	prepare it for printing.
     57  */
     58 void
     59 get_line(void)
     60 {
     61 	long	saveftell;
     62 	int	c;
     63 	int	cnt;
     64 	char	*cp;
     65 
     66 	saveftell = ftell(inf);
     67 	(void)fseek(inf, lineftell, SEEK_SET);
     68 	if (xflag)
     69 		for (cp = lbuf; GETC(!=, '\n'); *cp++ = c)
     70 			continue;
     71 	/*
     72 	 * do all processing here, so we don't step through the
     73 	 * line more than once; means you don't call this routine
     74 	 * unless you're sure you've got a keeper.
     75 	 */
     76 	else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
     77 		if (c == '\\') {		/* backslashes */
     78 			if (cnt > ENDLINE - 2)
     79 				break;
     80 			*cp++ = '\\'; *cp++ = '\\';
     81 			++cnt;
     82 		}
     83 		else if (c == (int)searchar) {	/* search character */
     84 			if (cnt > ENDLINE - 2)
     85 				break;
     86 			*cp++ = '\\'; *cp++ = c;
     87 			++cnt;
     88 		}
     89 		else if (c == '\n') {	/* end of keep */
     90 			*cp++ = '$';		/* can find whole line */
     91 			break;
     92 		}
     93 		else
     94 			*cp++ = c;
     95 	}
     96 	*cp = EOS;
     97 	(void)fseek(inf, saveftell, SEEK_SET);
     98 }
     99 
    100 /*
    101  * put_entries --
    102  *	write out the tags
    103  */
    104 void
    105 put_entries(NODE *node)
    106 {
    107 
    108 	if (node->left)
    109 		put_entries(node->left);
    110 	if (vflag)
    111 		printf("%s %s %d\n",
    112 		    node->entry, node->file, (node->lno + 63) / 64);
    113 	else if (xflag)
    114 		printf("%-16s %4d %-16s %s\n",
    115 		    node->entry, node->lno, node->file, node->pat);
    116 	else
    117 		fprintf(outf, "%s\t%s\t%c^%s%c\n",
    118 		    node->entry, node->file, searchar, node->pat, searchar);
    119 	if (node->right)
    120 		put_entries(node->right);
    121 }
    122