96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* $NetBSD: x_cut.c,v 1.2 2007/07/02 18:41:04 christos Exp $ */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam S. Moskowitz of Menlo Consulting and Marciano Pitargue.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* This file is #include'd twice from cut.c, to generate both
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* single- and multibyte versions of the same code.
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*
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* In cut.c #define:
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* CUT_BYTE=0 to define b_cut (singlebyte), and
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* CUT_BYTE=1 to define c_cut (multibyte).
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*
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*/
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#if (CUT_BYTE == 1)
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# define CUT_FN b_cut
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# define CUT_CH_T int
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# define CUT_GETC getc
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# define CUT_EOF EOF
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# define CUT_PUTCHAR putchar
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#else
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# define CUT_FN c_cut
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# define CUT_CH_T wint_t
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# define CUT_GETC getwc
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# define CUT_EOF WEOF
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# define CUT_PUTCHAR putwchar
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#endif
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/* ARGSUSED */
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static void
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CUT_FN(FILE *fp, const char *fname __unused)
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{
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CUT_CH_T ch;
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int col;
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char *pos;
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ch = 0;
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for (;;) {
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pos = positions + 1;
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for (col = maxval; col; --col) {
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if ((ch = CUT_GETC(fp)) == EOF)
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return;
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if (ch == '\n')
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break;
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if (*pos++)
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(void)CUT_PUTCHAR(ch);
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}
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if (ch != '\n') {
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if (autostop)
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while ((ch = CUT_GETC(fp)) != CUT_EOF && ch != '\n')
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(void)CUT_PUTCHAR(ch);
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else
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while ((ch = CUT_GETC(fp)) != CUT_EOF && ch != '\n');
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}
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(void)CUT_PUTCHAR('\n');
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}
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}
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#undef CUT_FN
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#undef CUT_CH_T
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#undef CUT_GETC
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#undef CUT_EOF
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#undef CUT_PUTCHAR
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