src/cal/lam.c

#ifndef lint
static const char       RCSid[] = "$Id: lam.c,v 1.16 2016/03/24 19:00:54 greg Exp $";
#endif
/*
 *  lam.c - simple program to laminate files.
 *
 *      7/14/88         Greg Ward
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>

#include "platform.h"
#include "rtprocess.h"
#include "rtio.h"

#define MAXFILE         512             /* maximum number of files */

#define MAXLINE         65536           /* maximum input line */

long    incnt = 0;                      /* limit number of records? */

FILE    *input[MAXFILE];
int     bytsiz[MAXFILE];
char    *tabc[MAXFILE];
int     nfiles;

char    buf[MAXLINE];

int
main(argc, argv)
int     argc;
char    *argv[];
{
        int     unbuff = 0;
        int     binout = 0;
        int     i;
        char    *curtab;
        int     curbytes;
        int     puteol;

        curtab = "\t";
        curbytes = 0;
        nfiles = 0;
        for (i = 1; i < argc; i++) {
                if (argv[i][0] == '-') {
                        switch (argv[i][1]) {
                        case 't':
                                curtab = argv[i]+2;
                                break;
                        case 'u':
                                unbuff = !unbuff;
                                break;
                        case 'i':
                                switch (argv[i][2]) {
                                case 'n':
                                        incnt = atol(argv[++i]);
                                        break;
                                case 'f':
                                        curbytes = sizeof(float);
                                        break;
                                case 'd':
                                        curbytes = sizeof(double);
                                        break;
                                case 'i':
                                        curbytes = sizeof(int);
                                        break;
                                case 'w':
                                        curbytes = 2;
                                        break;
                                case 'b':
                                        curbytes = 1;
                                        break;
                                case 'a':
                                        curbytes = argv[i][3] ? -1 : 0;
                                        break;
                                default:
                                        goto badopt;
                                }
                                if (isdigit(argv[i][3]))
                                        curbytes *= atoi(argv[i]+3);
                                if (abs(curbytes) > MAXLINE) {
                                        fputs(argv[0], stderr);
                                        fputs(": input size too big\n", stderr);
                                        exit(1);
                                }
                                if (curbytes) {
                                        curtab = "";
                                        ++binout;
                                }
                                break;
                        case '\0':
                                tabc[nfiles] = curtab;
                                input[nfiles] = stdin;
                                if (curbytes > 0)
                                        SET_FILE_BINARY(input[nfiles]);
                                else
                                        curbytes = -curbytes;
                                bytsiz[nfiles++] = curbytes;
                                break;
                        badopt:;
                        default:
                                fputs(argv[0], stderr);
                                fputs(": bad option\n", stderr);
                                exit(1);
                        }
                } else if (argv[i][0] == '!') {
                        tabc[nfiles] = curtab;
                        if ((input[nfiles] = popen(argv[i]+1, "r")) == NULL) {
                                fputs(argv[i], stderr);
                                fputs(": cannot start command\n", stderr);
                                exit(1);
                        }
                        if (curbytes > 0)
                                SET_FILE_BINARY(input[nfiles]);
                        else
                                curbytes = -curbytes;
                        bytsiz[nfiles++] = curbytes;
                } else {
                        tabc[nfiles] = curtab;
                        if ((input[nfiles] = fopen(argv[i], "r")) == NULL) {
                                fputs(argv[i], stderr);
                                fputs(": cannot open file\n", stderr);
                                exit(1);
                        }
                        if (curbytes > 0)
                                SET_FILE_BINARY(input[nfiles]);
                        else
                                curbytes = -curbytes;
                        bytsiz[nfiles++] = curbytes;
                }
                if (nfiles >= MAXFILE) {
                        fputs(argv[0], stderr);
                        fputs(": too many input streams\n", stderr);
                        exit(1);
                }
        }
        if (binout)                             /* binary output? */
                SET_FILE_BINARY(stdout);
#ifdef getc_unlocked                            /* avoid lock/unlock overhead */
        for (i = nfiles; i--; )
                flockfile(input[i]);
        flockfile(stdout);
#endif
        puteol = 0;                             /* any ASCII output at all? */
        for (i = nfiles; i--; )
                if (!bytsiz[i] || isprint(tabc[i][0]) || tabc[i][0] == '\t') {
                        puteol++;
                        break;
                }
        do {                                    /* main loop */
                for (i = 0; i < nfiles; i++) {
                        if (bytsiz[i]) {                /* binary file */
                                if (getbinary(buf, bytsiz[i], 1, input[i]) < 1)
                                        break;
                                if (i)
                                        fputs(tabc[i], stdout);
                                putbinary(buf, bytsiz[i], 1, stdout);
                        } else {
                                if (fgets(buf, MAXLINE, input[i]) == NULL)
                                        break;
                                if (i)
                                        fputs(tabc[i], stdout);
                                buf[strlen(buf)-1] = '\0';
                                fputs(buf, stdout);
                        }
                }
                if (i < nfiles)
                        break;
                if (puteol)
                        putchar('\n');
                if (unbuff)
                        fflush(stdout);
        } while (--incnt);
        return(0);
}
Revision:	1.17
Committed:	Thu Aug 18 00:52:47 2016 UTC (7 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R2, rad5R1
Changes since 1.16:	+4 -3 lines
Log Message:	Switched over to more efficient fread/fwrite replacements getbinary/putbinary
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	1.17	static const char RCSid[] = "$Id: lam.c,v 1.16 2016/03/24 19:00:54 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* lam.c - simple program to laminate files.
6			*
7			* 7/14/88 Greg Ward
8			*/
9
10	schorsch	1.2	#include <stdlib.h>
11			#include <string.h>
12	greg	1.1	#include <stdio.h>
13	greg	1.7	#include <ctype.h>
14	schorsch	1.2
15			#include "platform.h"
16	schorsch	1.3	#include "rtprocess.h"
17	greg	1.17	#include "rtio.h"
18	greg	1.1
19	greg	1.7	#define MAXFILE 512 /* maximum number of files */
20	greg	1.1
21	greg	1.13	#define MAXLINE 65536 /* maximum input line */
22	greg	1.1
23	greg	1.15	long incnt = 0; /* limit number of records? */
24
25	greg	1.1	FILE *input[MAXFILE];
26	greg	1.7	int bytsiz[MAXFILE];
27	greg	1.6	char *tabc[MAXFILE];
28	greg	1.1	int nfiles;
29
30			char buf[MAXLINE];
31
32	schorsch	1.4	int
33	greg	1.1	main(argc, argv)
34			int argc;
35			char *argv[];
36			{
37	greg	1.11	int unbuff = 0;
38	greg	1.14	int binout = 0;
39	greg	1.11	int i;
40	greg	1.6	char *curtab;
41	greg	1.7	int curbytes;
42	greg	1.11	int puteol;
43	greg	1.1
44	greg	1.6	curtab = "\t";
45	greg	1.7	curbytes = 0;
46	greg	1.1	nfiles = 0;
47			for (i = 1; i < argc; i++) {
48			if (argv[i][0] == '-') {
49			switch (argv[i][1]) {
50			case 't':
51	greg	1.6	curtab = argv[i]+2;
52	greg	1.1	break;
53	greg	1.11	case 'u':
54			unbuff = !unbuff;
55			break;
56	greg	1.7	case 'i':
57			switch (argv[i][2]) {
58	greg	1.15	case 'n':
59			incnt = atol(argv[++i]);
60			break;
61	greg	1.7	case 'f':
62			curbytes = sizeof(float);
63			break;
64			case 'd':
65			curbytes = sizeof(double);
66			break;
67	greg	1.10	case 'i':
68			curbytes = sizeof(int);
69			break;
70	greg	1.7	case 'w':
71	greg	1.10	curbytes = 2;
72			break;
73			case 'b':
74			curbytes = 1;
75	greg	1.7	break;
76			case 'a':
77	greg	1.12	curbytes = argv[i][3] ? -1 : 0;
78	greg	1.7	break;
79			default:
80			goto badopt;
81			}
82			if (isdigit(argv[i][3]))
83			curbytes *= atoi(argv[i]+3);
84	greg	1.12	if (abs(curbytes) > MAXLINE) {
85	greg	1.7	fputs(argv[0], stderr);
86	greg	1.12	fputs(": input size too big\n", stderr);
87	greg	1.7	exit(1);
88			}
89	greg	1.14	if (curbytes) {
90	greg	1.8	curtab = "";
91	greg	1.14	++binout;
92			}
93	greg	1.7	break;
94	greg	1.1	case '\0':
95			tabc[nfiles] = curtab;
96	greg	1.12	input[nfiles] = stdin;
97			if (curbytes > 0)
98			SET_FILE_BINARY(input[nfiles]);
99			else
100			curbytes = -curbytes;
101			bytsiz[nfiles++] = curbytes;
102	greg	1.1	break;
103	greg	1.7	badopt:;
104	greg	1.1	default:
105			fputs(argv[0], stderr);
106			fputs(": bad option\n", stderr);
107			exit(1);
108			}
109			} else if (argv[i][0] == '!') {
110			tabc[nfiles] = curtab;
111	greg	1.9	if ((input[nfiles] = popen(argv[i]+1, "r")) == NULL) {
112	greg	1.1	fputs(argv[i], stderr);
113			fputs(": cannot start command\n", stderr);
114			exit(1);
115			}
116	greg	1.12	if (curbytes > 0)
117	greg	1.9	SET_FILE_BINARY(input[nfiles]);
118	greg	1.12	else
119			curbytes = -curbytes;
120			bytsiz[nfiles++] = curbytes;
121	greg	1.1	} else {
122			tabc[nfiles] = curtab;
123	greg	1.9	if ((input[nfiles] = fopen(argv[i], "r")) == NULL) {
124	greg	1.1	fputs(argv[i], stderr);
125			fputs(": cannot open file\n", stderr);
126			exit(1);
127			}
128	greg	1.12	if (curbytes > 0)
129	greg	1.9	SET_FILE_BINARY(input[nfiles]);
130	greg	1.12	else
131			curbytes = -curbytes;
132			bytsiz[nfiles++] = curbytes;
133	greg	1.1	}
134			if (nfiles >= MAXFILE) {
135			fputs(argv[0], stderr);
136			fputs(": too many input streams\n", stderr);
137			exit(1);
138			}
139			}
140	greg	1.14	if (binout) /* binary output? */
141			SET_FILE_BINARY(stdout);
142			#ifdef getc_unlocked /* avoid lock/unlock overhead */
143			for (i = nfiles; i--; )
144			flockfile(input[i]);
145			flockfile(stdout);
146			#endif
147	greg	1.15	puteol = 0; /* any ASCII output at all? */
148	greg	1.7	for (i = nfiles; i--; )
149	greg	1.11	if (!bytsiz[i] \|\| isprint(tabc[i][0]) \|\| tabc[i][0] == '\t') {
150	greg	1.7	puteol++;
151			break;
152			}
153	greg	1.16	do { /* main loop */
154	greg	1.1	for (i = 0; i < nfiles; i++) {
155	greg	1.7	if (bytsiz[i]) { /* binary file */
156	greg	1.17	if (getbinary(buf, bytsiz[i], 1, input[i]) < 1)
157	greg	1.11	break;
158			if (i)
159			fputs(tabc[i], stdout);
160	greg	1.17	putbinary(buf, bytsiz[i], 1, stdout);
161	greg	1.11	} else {
162			if (fgets(buf, MAXLINE, input[i]) == NULL)
163			break;
164	greg	1.1	if (i)
165	greg	1.6	fputs(tabc[i], stdout);
166	greg	1.1	buf[strlen(buf)-1] = '\0';
167			fputs(buf, stdout);
168			}
169			}
170	greg	1.11	if (i < nfiles)
171			break;
172			if (puteol)
173	greg	1.1	putchar('\n');
174	greg	1.11	if (unbuff)
175			fflush(stdout);
176	greg	1.16	} while (--incnt);
177	greg	1.11	return(0);
178	greg	1.1	}