1/*	$NetBSD: x_cut.c,v 1.1 2007/02/17 19:10:00 hubertf Exp $	*/
2
3/*
4 * Copyright (c) 1989, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Adam S. Moskowitz of Menlo Consulting and Marciano Pitargue.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35/*
36 *  This file is #include'd twice from cut.c, to generate both
37 *  single- and multibyte versions of the same code.
38 *
39 *  In cut.c #define:
40 *   CUT_BYTE=0 to define b_cut (singlebyte), and
41 *   CUT_BYTE=1 to define c_cut (multibyte).
42 *
43 */
44
45#if (CUT_BYTE == 1)
46#  define CUT_FN 		b_cut
47#  define CUT_CH_T 		int
48#  define CUT_GETC 		getc
49#  define CUT_EOF 		EOF
50#  define CUT_PUTCHAR		putchar
51#else
52#  define CUT_FN 		c_cut
53#  define CUT_CH_T 		wint_t
54#  define CUT_GETC 		getwc
55#  define CUT_EOF		WEOF
56#  define CUT_PUTCHAR		putwchar
57#endif
58
59
60/* ARGSUSED */
61void
62CUT_FN(FILE *fp, const char *fname __unused)
63{
64	CUT_CH_T ch;
65	int col;
66	char *pos;
67
68	ch = 0;
69	for (;;) {
70		pos = positions + 1;
71		for (col = maxval; col; --col) {
72			if ((ch = CUT_GETC(fp)) == EOF)
73				return;
74			if (ch == '\n')
75				break;
76			if (*pos++)
77				(void)CUT_PUTCHAR(ch);
78		}
79		if (ch != '\n') {
80			if (autostop)
81				while ((ch = CUT_GETC(fp)) != CUT_EOF && ch != '\n')
82					(void)CUT_PUTCHAR(ch);
83			else
84				while ((ch = CUT_GETC(fp)) != CUT_EOF && ch != '\n');
85		}
86		(void)CUT_PUTCHAR('\n');
87	}
88}
89
90#undef CUT_FN
91#undef CUT_CH_T
92#undef CUT_GETC
93#undef CUT_EOF
94#undef CUT_PUTCHAR
95
96