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Annotation of src/usr.bin/ctags/print.c, Revision 1.5

1.5     ! deraadt     1: /*     $OpenBSD: print.c,v 1.4 2003/06/03 02:56:07 millert 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.
1.4       millert    16:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  */
                     32:
                     33: #ifndef lint
                     34: #if 0
                     35: static char sccsid[] = "@(#)print.c    8.3 (Berkeley) 4/2/94";
                     36: #else
1.5     ! deraadt    37: static char rcsid[] = "$OpenBSD: print.c,v 1.4 2003/06/03 02:56:07 millert Exp $";
1.1       deraadt    38: #endif
                     39: #endif /* not lint */
                     40:
                     41: #include <limits.h>
                     42: #include <stdio.h>
                     43: #include <stdlib.h>
                     44: #include <string.h>
                     45: #include <unistd.h>
                     46:
                     47: #include "ctags.h"
                     48:
                     49: /*
                     50:  * getline --
                     51:  *     get the line the token of interest occurred on,
                     52:  *     prepare it for printing.
                     53:  */
                     54: void
1.5     ! deraadt    55: getline(void)
1.1       deraadt    56: {
                     57:        long    saveftell;
                     58:        int     c;
                     59:        int     cnt;
                     60:        char    *cp;
                     61:
                     62:        saveftell = ftell(inf);
                     63:        (void)fseek(inf, lineftell, SEEK_SET);
                     64:        if (xflag)
1.3       deraadt    65:                for (cp = lbuf; GETC(!=, EOF) && c != '\n'; *cp++ = c)
1.1       deraadt    66:                        continue;
                     67:        /*
                     68:         * do all processing here, so we don't step through the
                     69:         * line more than once; means you don't call this routine
                     70:         * unless you're sure you've got a keeper.
                     71:         */
                     72:        else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
                     73:                if (c == '\\') {                /* backslashes */
                     74:                        if (cnt > ENDLINE - 2)
                     75:                                break;
                     76:                        *cp++ = '\\'; *cp++ = '\\';
                     77:                        ++cnt;
                     78:                }
                     79:                else if (c == (int)searchar) {  /* search character */
                     80:                        if (cnt > ENDLINE - 2)
                     81:                                break;
                     82:                        *cp++ = '\\'; *cp++ = c;
                     83:                        ++cnt;
                     84:                }
                     85:                else if (c == '\n') {   /* end of keep */
                     86:                        *cp++ = '$';            /* can find whole line */
                     87:                        break;
                     88:                }
                     89:                else
                     90:                        *cp++ = c;
                     91:        }
                     92:        *cp = EOS;
                     93:        (void)fseek(inf, saveftell, SEEK_SET);
                     94: }
                     95:
                     96: /*
                     97:  * put_entries --
                     98:  *     write out the tags
                     99:  */
                    100: void
1.5     ! deraadt   101: put_entries(NODE *node)
1.1       deraadt   102: {
                    103:
                    104:        if (node->left)
                    105:                put_entries(node->left);
                    106:        if (vflag)
                    107:                printf("%s %s %d\n",
                    108:                    node->entry, node->file, (node->lno + 63) / 64);
                    109:        else if (xflag)
                    110:                printf("%-16s%4d %-16s %s\n",
                    111:                    node->entry, node->lno, node->file, node->pat);
                    112:        else
                    113:                fprintf(outf, "%s\t%s\t%c^%s%c\n",
                    114:                    node->entry, node->file, searchar, node->pat, searchar);
                    115:        if (node->right)
                    116:                put_entries(node->right);
                    117: }