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Annotation of src/usr.bin/ctags/print.c, Revision 1.1.1.1

1.1       deraadt     1: /*     $NetBSD: print.c,v 1.4 1995/09/27 01:06:58 jtc 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. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *     This product includes software developed by the University of
                     18:  *     California, Berkeley and its contributors.
                     19:  * 4. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "@(#)print.c    8.3 (Berkeley) 4/2/94";
                     39: #else
                     40: static char rcsid[] = "$NetBSD: print.c,v 1.4 1995/09/27 01:06:58 jtc Exp $";
                     41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include <limits.h>
                     45: #include <stdio.h>
                     46: #include <stdlib.h>
                     47: #include <string.h>
                     48: #include <unistd.h>
                     49:
                     50: #include "ctags.h"
                     51:
                     52: /*
                     53:  * getline --
                     54:  *     get the line the token of interest occurred on,
                     55:  *     prepare it for printing.
                     56:  */
                     57: void
                     58: getline()
                     59: {
                     60:        long    saveftell;
                     61:        int     c;
                     62:        int     cnt;
                     63:        char    *cp;
                     64:
                     65:        saveftell = ftell(inf);
                     66:        (void)fseek(inf, lineftell, SEEK_SET);
                     67:        if (xflag)
                     68:                for (cp = lbuf; GETC(!=, '\n'); *cp++ = c)
                     69:                        continue;
                     70:        /*
                     71:         * do all processing here, so we don't step through the
                     72:         * line more than once; means you don't call this routine
                     73:         * unless you're sure you've got a keeper.
                     74:         */
                     75:        else for (cnt = 0, cp = lbuf; GETC(!=, EOF) && cnt < ENDLINE; ++cnt) {
                     76:                if (c == '\\') {                /* backslashes */
                     77:                        if (cnt > ENDLINE - 2)
                     78:                                break;
                     79:                        *cp++ = '\\'; *cp++ = '\\';
                     80:                        ++cnt;
                     81:                }
                     82:                else if (c == (int)searchar) {  /* search character */
                     83:                        if (cnt > ENDLINE - 2)
                     84:                                break;
                     85:                        *cp++ = '\\'; *cp++ = c;
                     86:                        ++cnt;
                     87:                }
                     88:                else if (c == '\n') {   /* end of keep */
                     89:                        *cp++ = '$';            /* can find whole line */
                     90:                        break;
                     91:                }
                     92:                else
                     93:                        *cp++ = c;
                     94:        }
                     95:        *cp = EOS;
                     96:        (void)fseek(inf, saveftell, SEEK_SET);
                     97: }
                     98:
                     99: /*
                    100:  * put_entries --
                    101:  *     write out the tags
                    102:  */
                    103: void
                    104: put_entries(node)
                    105:        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: }