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17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * @(#) Copyright (c) 1993 The Regents of the University of California. All rights reserved.
30 * @(#)lam.c 8.1 (Berkeley) 6/6/93
31 * $FreeBSD: src/usr.bin/lam/lam.c,v 1.3.2.3 2001/08/11 03:03:19 mike Exp $
32 * $DragonFly: src/usr.bin/lam/lam.c,v 1.3 2003/10/04 20:36:47 hmp Exp $
36 * lam - laminate files
37 * Author: John Kunze, UCB
47 #define BIGBUFSIZ 5 * BUFSIZ
49 struct openfile { /* open file structure */
50 FILE *fp; /* file pointer */
51 short eof; /* eof flag */
52 short pad; /* pad flag for missing columns */
53 char eol; /* end of line character */
54 const char *sepstring; /* string to print before each line */
55 const char *format; /* printf(3) style string spec. */
58 int morefiles; /* set by getargs(), changed by gatherline() */
59 int nofinalnl; /* normally append \n to each output line */
63 static char *gatherline(struct openfile *);
64 static void getargs(char *[]);
65 static char *pad(struct openfile *);
66 static void usage(void);
69 main(int argc __unused, char *argv[])
78 for (ip = input; ip->fp != NULL; ip++)
79 linep = gatherline(ip);
83 fputs(ip->sepstring, stdout);
92 struct openfile *ip = input;
94 static char fmtbuf[BUFSIZ];
98 P = S = F = T = 0; /* capitalized options */
99 while ((p = *++av) != NULL) {
100 if (*p != '-' || !p[1]) {
101 if (++morefiles >= MAXOFILES)
102 errx(1, "too many input files");
105 else if ((ip->fp = fopen(p, "r")) == NULL) {
110 ip->sepstring = (S ? (ip-1)->sepstring : "");
112 ip->format = ((P || F) ? (ip-1)->format : "%s");
114 ip->eol = (T ? (ip-1)->eol : '\n');
119 switch (tolower(*c)) {
121 if (*++p || (p = *++av))
124 errx(1, "need string after -%s", c);
125 S = (*c == 'S' ? 1 : 0);
128 if (*++p || (p = *++av))
131 errx(1, "need character after -%s", c);
132 T = (*c == 'T' ? 1 : 0);
137 P = (*c == 'P' ? 1 : 0);
140 F = (*c == 'F' ? 1 : 0);
141 if (*++p || (p = *++av)) {
142 fmtp += strlen(fmtp) + 1;
143 if (fmtp >= fmtbuf + sizeof(fmtbuf))
144 errx(1, "no more format space");
145 /* restrict format string to only valid width formatters */
146 if (strspn(p, "-.0123456789") != strlen(p))
147 errx(1, "invalid format string `%s'", p);
148 if (snprintf(fmtp, fmtbuf + sizeof(fmtbuf) - fmtp, "%%%ss", p)
149 >= fmtbuf + sizeof(fmtbuf) - fmtp)
150 errx(1, "no more format space");
154 errx(1, "need string after -%s", c);
157 errx(1, "what do you mean by -%s?", c);
167 pad(struct openfile *ip)
171 strlcpy(lp, ip->sepstring, line + sizeof(line) - lp);
174 snprintf(lp, line + sizeof(line) - lp, ip->format, "");
181 gatherline(struct openfile *ip)
187 char *end = s + sizeof(s) - 1;
191 for (p = s; (c = fgetc(ip->fp)) != EOF && p < end; p++)
192 if ((*p = c) == ip->eol)
202 strlcpy(lp, ip->sepstring, line + sizeof(line) - lp);
204 snprintf(lp, line + sizeof(line) - lp, ip->format, s);
212 fprintf(stderr, "%s\n%s\n",
213 "usage: lam [ -f min.max ] [ -s sepstring ] [ -t c ] file ...",
214 " lam [ -p min.max ] [ -s sepstring ] [ -t c ] file ...");