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Annotation of src/usr.bin/ctags/print.c, Revision 1.3

1.3     ! deraadt     1: /*     $OpenBSD: print.c,v 1.2 1996/06/26 05:32:30 deraadt Exp $       */
1.1       deraadt     2: /*     $NetBSD: print.c,v 1.4 1995/09/27 01:06:58 jtc Exp $    */
                      3:
                      4: /*
                      5:  * Copyright (c) 1987, 1993, 1994
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  */
                     36:
                     37: #ifndef lint
                     38: #if 0
                     39: static char sccsid[] = "@(#)print.c    8.3 (Berkeley) 4/2/94";
                     40: #else
1.3     ! deraadt    41: static char rcsid[] = "$OpenBSD: print.c,v 1.2 1996/06/26 05:32:30 deraadt Exp $";
1.1       deraadt    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:  * getline --
                     55:  *     get the line the token of interest occurred on,
                     56:  *     prepare it for printing.
                     57:  */
                     58: void
                     59: getline()
                     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)
1.3     ! deraadt    69:                for (cp = lbuf; GETC(!=, EOF) && c != '\n'; *cp++ = c)
1.1       deraadt    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)
                    106:        NODE    *node;
                    107: {
                    108:
                    109:        if (node->left)
                    110:                put_entries(node->left);
                    111:        if (vflag)
                    112:                printf("%s %s %d\n",
                    113:                    node->entry, node->file, (node->lno + 63) / 64);
                    114:        else if (xflag)
                    115:                printf("%-16s%4d %-16s %s\n",
                    116:                    node->entry, node->lno, node->file, node->pat);
                    117:        else
                    118:                fprintf(outf, "%s\t%s\t%c^%s%c\n",
                    119:                    node->entry, node->file, searchar, node->pat, searchar);
                    120:        if (node->right)
                    121:                put_entries(node->right);
                    122: }