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