1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: total.c,v 1.10 2014/03/25 05:36:22 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* total.c - program to reduce columns of data. |
6 |
* |
7 |
* 5/18/88 |
8 |
*/ |
9 |
|
10 |
#include <stdio.h> |
11 |
#include <stdlib.h> |
12 |
#include <ctype.h> |
13 |
#include <math.h> |
14 |
#include "platform.h" |
15 |
|
16 |
#define MAXCOL 8192 /* maximum number of columns */ |
17 |
|
18 |
#define ADD 0 /* add numbers */ |
19 |
#define MULT 1 /* multiply numbers */ |
20 |
#define MAX 2 /* maximum */ |
21 |
#define MIN 3 /* minimum */ |
22 |
|
23 |
double init_val[] = {0., 1., -1e12, 1e12}; /* initial values */ |
24 |
|
25 |
long incnt = 0; /* limit number of input records? */ |
26 |
long outcnt = 0; /* limit number of output records? */ |
27 |
|
28 |
int func = ADD; /* default function */ |
29 |
double power = 0.0; /* power for sum */ |
30 |
int mean = 0; /* compute mean */ |
31 |
int count = 0; /* number to sum */ |
32 |
int nbicols = 0; /* number of binary input columns */ |
33 |
int bocols = 0; /* produce binary output columns */ |
34 |
int tabc = '\t'; /* default separator */ |
35 |
int subtotal = 0; /* produce subtotals? */ |
36 |
int nrecsout = 0; /* number of records produced */ |
37 |
|
38 |
static int execute(char *fname); |
39 |
|
40 |
int |
41 |
main( |
42 |
int argc, |
43 |
char *argv[] |
44 |
) |
45 |
{ |
46 |
int status; |
47 |
int a; |
48 |
|
49 |
for (a = 1; a < argc; a++) |
50 |
if (argv[a][0] == '-') |
51 |
if (argv[a][1] >= '0' && argv[a][1] <= '9') |
52 |
count = atoi(argv[a]+1); |
53 |
else |
54 |
switch (argv[a][1]) { |
55 |
case 'm': |
56 |
mean = !mean; |
57 |
break; |
58 |
case 'p': |
59 |
func = MULT; |
60 |
break; |
61 |
case 's': |
62 |
func = ADD; |
63 |
power = atof(argv[a]+2); |
64 |
break; |
65 |
case 'u': |
66 |
func = MAX; |
67 |
break; |
68 |
case 'l': |
69 |
func = MIN; |
70 |
break; |
71 |
case 't': |
72 |
tabc = argv[a][2]; |
73 |
break; |
74 |
case 'r': |
75 |
subtotal = !subtotal; |
76 |
break; |
77 |
case 'i': |
78 |
switch (argv[a][2]) { |
79 |
case 'n': |
80 |
incnt = atol(argv[++a]); |
81 |
break; |
82 |
case 'a': |
83 |
nbicols = 0; |
84 |
break; |
85 |
case 'd': |
86 |
if (isdigit(argv[a][3])) |
87 |
nbicols = atoi(argv[a]+3); |
88 |
else |
89 |
nbicols = 1; |
90 |
if (nbicols > MAXCOL) { |
91 |
fprintf(stderr, |
92 |
"%s: too many input columns\n", |
93 |
argv[0]); |
94 |
exit(1); |
95 |
} |
96 |
break; |
97 |
case 'f': |
98 |
if (isdigit(argv[a][3])) |
99 |
nbicols = -atoi(argv[a]+3); |
100 |
else |
101 |
nbicols = -1; |
102 |
if (-nbicols > MAXCOL) { |
103 |
fprintf(stderr, |
104 |
"%s: too many input columns\n", |
105 |
argv[0]); |
106 |
exit(1); |
107 |
} |
108 |
break; |
109 |
default: |
110 |
goto userr; |
111 |
} |
112 |
break; |
113 |
case 'o': |
114 |
switch (argv[a][2]) { |
115 |
case 'n': |
116 |
outcnt = atol(argv[++a]); |
117 |
break; |
118 |
case 'a': |
119 |
bocols = 0; |
120 |
break; |
121 |
case 'd': |
122 |
bocols = 1; |
123 |
break; |
124 |
case 'f': |
125 |
bocols = -1; |
126 |
break; |
127 |
default: |
128 |
goto userr; |
129 |
} |
130 |
break; |
131 |
default:; |
132 |
userr: |
133 |
fprintf(stderr, |
134 |
"Usage: %s [-m][-sE|p|u|l][-tC][-i{f|d}[N]][-o{f|d}][-count [-r]] [file..]\n", |
135 |
argv[0]); |
136 |
exit(1); |
137 |
} |
138 |
else |
139 |
break; |
140 |
if (mean) { |
141 |
if (func == MAX) { |
142 |
fprintf(stderr, "%s: average maximum?!\n", argv[0]); |
143 |
exit(1); |
144 |
} |
145 |
if (func == MIN) { |
146 |
fprintf(stderr, "%s: average minimum?!\n", argv[0]); |
147 |
exit(1); |
148 |
} |
149 |
} |
150 |
if (bocols) |
151 |
SET_FILE_BINARY(stdout); |
152 |
status = 0; |
153 |
if (a >= argc) |
154 |
status = execute(NULL) == -1 ? 1 : status; |
155 |
else |
156 |
for ( ; a < argc && (outcnt <= 0 || nrecsout < outcnt); a++) |
157 |
status = execute(argv[a]) == -1 ? 2 : status; |
158 |
exit(status); |
159 |
} |
160 |
|
161 |
|
162 |
static int |
163 |
getrecord( /* read next input record */ |
164 |
double field[MAXCOL], |
165 |
FILE *fp |
166 |
) |
167 |
{ |
168 |
char buf[16*MAXCOL]; |
169 |
char *cp, *num; |
170 |
int nf; |
171 |
/* reading binary input? */ |
172 |
if (nbicols > 0) |
173 |
return(fread(field, sizeof(double), nbicols, fp)); |
174 |
if (nbicols < 0) { |
175 |
float *fbuf = (float *)buf; |
176 |
int i; |
177 |
nf = fread(fbuf, sizeof(float), -nbicols, fp); |
178 |
for (i = nf; i-- > 0; ) |
179 |
field[i] = fbuf[i]; |
180 |
return(nf); |
181 |
} |
182 |
/* reading ASCII input */ |
183 |
cp = fgets(buf, sizeof(buf), fp); |
184 |
if (cp == NULL) |
185 |
return(0); |
186 |
for (nf = 0; nf < MAXCOL; nf++) { |
187 |
while (isspace(*cp)) |
188 |
cp++; |
189 |
if (!*cp) |
190 |
break; |
191 |
num = cp; |
192 |
while (*cp && !(isspace(tabc)?isspace(*cp):*cp==tabc)) |
193 |
cp++; |
194 |
if (*cp) |
195 |
*cp++ = '\0'; |
196 |
if (!*num || isspace(*num)) |
197 |
field[nf] = init_val[func]; |
198 |
else |
199 |
field[nf] = atof(num); |
200 |
} |
201 |
return(nf); |
202 |
} |
203 |
|
204 |
|
205 |
static void |
206 |
putrecord( /* write out results record */ |
207 |
const double *field, |
208 |
int n, |
209 |
FILE *fp |
210 |
) |
211 |
{ |
212 |
/* binary output? */ |
213 |
if (bocols > 0) { |
214 |
fwrite(field, sizeof(double), n, fp); |
215 |
return; |
216 |
} |
217 |
if (bocols < 0) { |
218 |
float fv; |
219 |
while (n-- > 0) { |
220 |
fv = *field++; |
221 |
fwrite(&fv, sizeof(float), 1, fp); |
222 |
} |
223 |
return; |
224 |
} |
225 |
/* ASCII output */ |
226 |
while (n-- > 0) { |
227 |
fprintf(fp, "%.9g", *field++); |
228 |
if (n) fputc(tabc, fp); |
229 |
} |
230 |
fputc('\n', fp); |
231 |
} |
232 |
|
233 |
|
234 |
static int |
235 |
execute( /* compute result */ |
236 |
char *fname |
237 |
) |
238 |
{ |
239 |
double inpval[MAXCOL]; |
240 |
double tally[MAXCOL]; |
241 |
short rsign[MAXCOL]; |
242 |
double result[MAXCOL]; |
243 |
int n; |
244 |
int nread, ncol; |
245 |
long nlin, ltotal; |
246 |
FILE *fp; |
247 |
/* open file */ |
248 |
if (fname == NULL) |
249 |
fp = stdin; |
250 |
else if ((fp = fopen(fname, "r")) == NULL) { |
251 |
fprintf(stderr, "%s: cannot open\n", fname); |
252 |
return(-1); |
253 |
} |
254 |
if (nbicols) |
255 |
SET_FILE_BINARY(fp); |
256 |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
257 |
flockfile(fp); |
258 |
#endif |
259 |
|
260 |
ltotal = 0; |
261 |
while (!feof(fp)) { |
262 |
if (ltotal == 0) { /* initialize */ |
263 |
if (func == MULT) /* special case */ |
264 |
for (n = 0; n < MAXCOL; n++) { |
265 |
tally[n] = 0.0; |
266 |
rsign[n] = 1; |
267 |
} |
268 |
else |
269 |
for (n = 0; n < MAXCOL; n++) |
270 |
tally[n] = init_val[func]; |
271 |
} |
272 |
ncol = 0; |
273 |
for (nlin = 0; (count <= 0 || nlin < count) && |
274 |
(incnt <= 0 || nlin < incnt) && |
275 |
(nread = getrecord(inpval, fp)) > 0; |
276 |
nlin++) { |
277 |
/* compute */ |
278 |
for (n = 0; n < nread; n++) |
279 |
switch (func) { |
280 |
case ADD: |
281 |
if (inpval[n] == 0.0) |
282 |
break; |
283 |
if (power != 0.0) |
284 |
tally[n] += pow(fabs(inpval[n]),power); |
285 |
else |
286 |
tally[n] += inpval[n]; |
287 |
break; |
288 |
case MULT: |
289 |
if (inpval[n] == 0.0) |
290 |
rsign[n] = 0; |
291 |
else if (inpval[n] < 0.0) { |
292 |
rsign[n] = -rsign[n]; |
293 |
inpval[n] = -inpval[n]; |
294 |
} |
295 |
if (rsign[n]) |
296 |
tally[n] += log(inpval[n]); |
297 |
break; |
298 |
case MAX: |
299 |
if (inpval[n] > tally[n]) |
300 |
tally[n] = inpval[n]; |
301 |
break; |
302 |
case MIN: |
303 |
if (inpval[n] < tally[n]) |
304 |
tally[n] = inpval[n]; |
305 |
break; |
306 |
} |
307 |
if (nread > ncol) |
308 |
ncol = nread; |
309 |
} |
310 |
if (nlin == 0) |
311 |
break; |
312 |
/* compute and print */ |
313 |
ltotal += nlin; |
314 |
for (n = 0; n < ncol; n++) { |
315 |
result[n] = tally[n]; |
316 |
if (mean) { |
317 |
result[n] /= (double)ltotal; |
318 |
if (func == ADD && power != 0.0 && result[n] != 0.0) |
319 |
result[n] = pow(result[n], 1.0/power); |
320 |
} |
321 |
if (func == MULT) |
322 |
result[n] = rsign[n] * exp(result[n]); |
323 |
} |
324 |
putrecord(result, ncol, stdout); |
325 |
++nrecsout; |
326 |
if (outcnt > 0 && nrecsout >= outcnt) |
327 |
break; |
328 |
if (!subtotal) |
329 |
ltotal = 0; |
330 |
} |
331 |
/* close input */ |
332 |
return(fclose(fp)); |
333 |
} |