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