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5fe69bb518
more likely to have the right value. Remove superfluous assignments. Found by: LLVM/Clang Static Checker
549 lines
12 KiB
C
549 lines
12 KiB
C
/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static const char sccsid[] = "@(#)rs.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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/*
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* rs - reshape a data array
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* Author: John Kunze, Office of Comp. Affairs, UCB
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* BEWARE: lots of unfinished edges
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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long flags;
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#define TRANSPOSE 000001
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#define MTRANSPOSE 000002
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#define ONEPERLINE 000004
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#define ONEISEPONLY 000010
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#define ONEOSEPONLY 000020
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#define NOTRIMENDCOL 000040
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#define SQUEEZE 000100
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#define SHAPEONLY 000200
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#define DETAILSHAPE 000400
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#define RIGHTADJUST 001000
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#define NULLPAD 002000
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#define RECYCLE 004000
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#define SKIPPRINT 010000
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#define ICOLBOUNDS 020000
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#define OCOLBOUNDS 040000
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#define ONEPERCHAR 0100000
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#define NOARGS 0200000
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short *colwidths;
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short *cord;
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short *icbd;
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short *ocbd;
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int nelem;
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char **elem;
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char **endelem;
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char *curline;
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int allocsize = BUFSIZ;
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int curlen;
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int irows, icols;
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int orows = 0, ocols = 0;
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int maxlen;
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int skip;
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int propgutter;
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char isep = ' ', osep = ' ';
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char blank[] = "";
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int owidth = 80, gutter = 2;
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void getargs(int, char *[]);
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void getfile(void);
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int getline(void);
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char *getlist(short **, char *);
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char *getnum(int *, char *, int);
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char **getptrs(char **);
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void prepfile(void);
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void prints(char *, int);
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void putfile(void);
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static void usage(void);
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#define INCR(ep) do { \
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if (++ep >= endelem) \
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ep = getptrs(ep); \
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} while(0)
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int
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main(int argc, char *argv[])
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{
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getargs(argc, argv);
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getfile();
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if (flags & SHAPEONLY) {
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printf("%d %d\n", irows, icols);
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exit(0);
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}
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prepfile();
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putfile();
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exit(0);
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}
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void
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getfile(void)
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{
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char *p;
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char *endp;
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char **ep;
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int multisep = (flags & ONEISEPONLY ? 0 : 1);
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int nullpad = flags & NULLPAD;
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char **padto;
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while (skip--) {
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getline();
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if (flags & SKIPPRINT)
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puts(curline);
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}
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getline();
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if (flags & NOARGS && curlen < owidth)
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flags |= ONEPERLINE;
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if (flags & ONEPERLINE)
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icols = 1;
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else /* count cols on first line */
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for (p = curline, endp = curline + curlen; p < endp; p++) {
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if (*p == isep && multisep)
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continue;
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icols++;
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while (*p && *p != isep)
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p++;
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}
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ep = getptrs(elem);
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do {
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if (flags & ONEPERLINE) {
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*ep = curline;
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INCR(ep); /* prepare for next entry */
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if (maxlen < curlen)
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maxlen = curlen;
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irows++;
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continue;
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}
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for (p = curline, endp = curline + curlen; p < endp; p++) {
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if (*p == isep && multisep)
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continue; /* eat up column separators */
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if (*p == isep) /* must be an empty column */
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*ep = blank;
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else /* store column entry */
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*ep = p;
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while (p < endp && *p != isep)
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p++; /* find end of entry */
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*p = '\0'; /* mark end of entry */
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if (maxlen < p - *ep) /* update maxlen */
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maxlen = p - *ep;
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INCR(ep); /* prepare for next entry */
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}
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irows++; /* update row count */
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if (nullpad) { /* pad missing entries */
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padto = elem + irows * icols;
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while (ep < padto) {
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*ep = blank;
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INCR(ep);
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}
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}
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} while (getline() != EOF);
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*ep = 0; /* mark end of pointers */
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nelem = ep - elem;
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}
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void
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putfile(void)
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{
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char **ep;
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int i, j, k;
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ep = elem;
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if (flags & TRANSPOSE)
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for (i = 0; i < orows; i++) {
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for (j = i; j < nelem; j += orows)
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prints(ep[j], (j - i) / orows);
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putchar('\n');
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}
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else
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for (i = k = 0; i < orows; i++) {
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for (j = 0; j < ocols; j++, k++)
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if (k < nelem)
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prints(ep[k], j);
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putchar('\n');
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}
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}
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void
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prints(char *s, int col)
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{
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int n;
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char *p = s;
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while (*p)
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p++;
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n = (flags & ONEOSEPONLY ? 1 : colwidths[col] - (p - s));
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if (flags & RIGHTADJUST)
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while (n-- > 0)
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putchar(osep);
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for (p = s; *p; p++)
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putchar(*p);
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while (n-- > 0)
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putchar(osep);
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}
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static void
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usage(void)
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{
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fprintf(stderr,
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"usage: rs [-[csCS][x][kKgGw][N]tTeEnyjhHmz] [rows [cols]]\n");
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exit(1);
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}
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void
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prepfile(void)
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{
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char **ep;
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int i;
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int j;
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char **lp;
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int colw;
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int max;
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int n;
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if (!nelem)
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exit(0);
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gutter += maxlen * propgutter / 100.0;
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colw = maxlen + gutter;
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if (flags & MTRANSPOSE) {
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orows = icols;
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ocols = irows;
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}
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else if (orows == 0 && ocols == 0) { /* decide rows and cols */
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ocols = owidth / colw;
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if (ocols == 0) {
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warnx("display width %d is less than column width %d",
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owidth, colw);
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ocols = 1;
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}
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if (ocols > nelem)
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ocols = nelem;
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orows = nelem / ocols + (nelem % ocols ? 1 : 0);
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}
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else if (orows == 0) /* decide on rows */
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orows = nelem / ocols + (nelem % ocols ? 1 : 0);
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else if (ocols == 0) /* decide on cols */
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ocols = nelem / orows + (nelem % orows ? 1 : 0);
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lp = elem + orows * ocols;
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while (lp > endelem) {
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getptrs(elem + nelem);
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lp = elem + orows * ocols;
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}
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if (flags & RECYCLE) {
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for (ep = elem + nelem; ep < lp; ep++)
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*ep = *(ep - nelem);
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nelem = lp - elem;
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}
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if (!(colwidths = (short *) malloc(ocols * sizeof(short))))
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errx(1, "malloc");
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if (flags & SQUEEZE) {
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ep = elem;
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if (flags & TRANSPOSE)
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for (i = 0; i < ocols; i++) {
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max = 0;
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for (j = 0; *ep != NULL && j < orows; j++)
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if ((n = strlen(*ep++)) > max)
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max = n;
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colwidths[i] = max + gutter;
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}
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else
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for (i = 0; i < ocols; i++) {
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max = 0;
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for (j = i; j < nelem; j += ocols)
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if ((n = strlen(ep[j])) > max)
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max = n;
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colwidths[i] = max + gutter;
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}
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}
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/* for (i = 0; i < orows; i++) {
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for (j = i; j < nelem; j += orows)
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prints(ep[j], (j - i) / orows);
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putchar('\n');
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}
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else
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for (i = 0; i < orows; i++) {
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for (j = 0; j < ocols; j++)
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prints(*ep++, j);
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putchar('\n');
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}*/
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else
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for (i = 0; i < ocols; i++)
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colwidths[i] = colw;
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if (!(flags & NOTRIMENDCOL)) {
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if (flags & RIGHTADJUST)
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colwidths[0] -= gutter;
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else
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colwidths[ocols - 1] = 0;
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}
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n = orows * ocols;
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if (n > nelem && (flags & RECYCLE))
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nelem = n;
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/*for (i = 0; i < ocols; i++)
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warnx("%d is colwidths, nelem %d", colwidths[i], nelem);*/
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}
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#define BSIZE 2048
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char ibuf[BSIZE]; /* two screenfuls should do */
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int
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getline(void) /* get line; maintain curline, curlen; manage storage */
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{
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static int putlength;
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static char *endblock = ibuf + BSIZE;
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char *p;
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int c, i;
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if (!irows) {
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curline = ibuf;
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putlength = flags & DETAILSHAPE;
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}
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else if (skip <= 0) { /* don't waste storage */
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curline += curlen + 1;
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if (putlength) { /* print length, recycle storage */
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printf(" %d line %d\n", curlen, irows);
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curline = ibuf;
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}
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}
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if (!putlength && endblock - curline < BUFSIZ) { /* need storage */
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/*ww = endblock-curline; tt += ww;*/
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/*printf("#wasted %d total %d\n",ww,tt);*/
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if (!(curline = (char *) malloc(BSIZE)))
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errx(1, "file too large");
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endblock = curline + BSIZE;
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/*printf("#endb %d curline %d\n",endblock,curline);*/
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}
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for (p = curline, i = 1; i < BUFSIZ; *p++ = c, i++)
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if ((c = getchar()) == EOF || c == '\n')
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break;
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*p = '\0';
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curlen = i - 1;
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return(c);
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}
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char **
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getptrs(char **sp)
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{
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char **p;
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allocsize += allocsize;
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p = (char **)realloc(elem, allocsize * sizeof(char *));
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if (p == NULL)
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err(1, "no memory");
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sp += (p - elem);
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endelem = (elem = p) + allocsize;
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return(sp);
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}
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void
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getargs(int ac, char *av[])
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{
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char *p;
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if (ac == 1) {
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flags |= NOARGS | TRANSPOSE;
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}
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while (--ac && **++av == '-')
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for (p = *av+1; *p; p++)
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switch (*p) {
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case 'T':
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flags |= MTRANSPOSE;
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case 't':
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flags |= TRANSPOSE;
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break;
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case 'c': /* input col. separator */
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flags |= ONEISEPONLY;
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case 's': /* one or more allowed */
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if (p[1])
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isep = *++p;
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else
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isep = '\t'; /* default is ^I */
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break;
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case 'C':
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flags |= ONEOSEPONLY;
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case 'S':
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if (p[1])
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osep = *++p;
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else
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osep = '\t'; /* default is ^I */
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break;
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case 'w': /* window width, default 80 */
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p = getnum(&owidth, p, 0);
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if (owidth <= 0)
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errx(1, "width must be a positive integer");
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break;
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case 'K': /* skip N lines */
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flags |= SKIPPRINT;
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case 'k': /* skip, do not print */
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p = getnum(&skip, p, 0);
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if (!skip)
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skip = 1;
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break;
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case 'm':
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flags |= NOTRIMENDCOL;
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break;
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case 'g': /* gutter space */
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p = getnum(&gutter, p, 0);
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break;
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case 'G':
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p = getnum(&propgutter, p, 0);
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break;
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case 'e': /* each line is an entry */
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flags |= ONEPERLINE;
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break;
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case 'E':
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flags |= ONEPERCHAR;
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break;
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case 'j': /* right adjust */
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flags |= RIGHTADJUST;
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break;
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case 'n': /* null padding for missing values */
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flags |= NULLPAD;
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break;
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case 'y':
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flags |= RECYCLE;
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break;
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case 'H': /* print shape only */
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flags |= DETAILSHAPE;
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case 'h':
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flags |= SHAPEONLY;
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break;
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case 'z': /* squeeze col width */
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flags |= SQUEEZE;
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break;
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/*case 'p':
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ipagespace = atoi(++p); (default is 1)
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break;*/
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case 'o': /* col order */
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p = getlist(&cord, p);
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break;
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case 'b':
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flags |= ICOLBOUNDS;
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p = getlist(&icbd, p);
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break;
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case 'B':
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flags |= OCOLBOUNDS;
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p = getlist(&ocbd, p);
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break;
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default:
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usage();
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}
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/*if (!osep)
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osep = isep;*/
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switch (ac) {
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/*case 3:
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opages = atoi(av[2]);*/
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case 2:
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if ((ocols = atoi(av[1])) < 0)
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ocols = 0;
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case 1:
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if ((orows = atoi(av[0])) < 0)
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orows = 0;
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case 0:
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break;
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default:
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errx(1, "too many arguments");
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}
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}
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char *
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getlist(short **list, char *p)
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{
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int count = 1;
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char *t;
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for (t = p + 1; *t; t++) {
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if (!isdigit((unsigned char)*t))
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errx(1,
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"option %.1s requires a list of unsigned numbers separated by commas", t);
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count++;
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while (*t && isdigit((unsigned char)*t))
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t++;
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if (*t != ',')
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break;
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}
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if (!(*list = (short *) malloc(count * sizeof(short))))
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errx(1, "no list space");
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count = 0;
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for (t = p + 1; *t; t++) {
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(*list)[count++] = atoi(t);
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printf("++ %d ", (*list)[count-1]);
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fflush(stdout);
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while (*t && isdigit((unsigned char)*t))
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t++;
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if (*t != ',')
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break;
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}
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(*list)[count] = 0;
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return(t - 1);
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}
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/*
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* num = number p points to; if (strict) complain
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* returns pointer to end of num
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*/
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char *
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getnum(int *num, char *p, int strict)
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{
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char *t = p;
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if (!isdigit((unsigned char)*++t)) {
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if (strict || *t == '-' || *t == '+')
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errx(1, "option %.1s requires an unsigned integer", p);
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*num = 0;
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return(p);
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}
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*num = atoi(t);
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while (*++t)
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if (!isdigit((unsigned char)*t))
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break;
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return(--t);
|
|
}
|