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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("")
#define PROCESS(TYPE, FMT)\
do {\
TYPE buf[BUFSIZ / sizeof(TYPE)];\
size_t i;\
int r, done = 0;\
while (!done) {\
for (i = 0; i < ELEMENTSOF(buf); i += (size_t)r) {\
r = scanf("%"FMT, buf + i);\
if (r == EOF) {\
done = 1;\
break;\
}\
}\
ewriteall(STDOUT_FILENO, buf, i * sizeof(*buf), "<stdout>");\
}\
} while (0)
static void process_xyza (void) {PROCESS(double, "lf");}
static void process_xyzaf(void) {PROCESS(float, "f");}
int
main(int argc, char *argv[])
{
struct stream stream;
size_t size = 0;
char *line = NULL;
ssize_t len;
void (*process)(void);
UNOFLAGS(argc);
len = getline(&line, &size, stdin);
if (len < 0) {
if (ferror(stdin))
eprintf("getline <stdin>:");
else
eprintf("<stdin>: no input\n");
}
if (len && line[len - 1] == '\n')
line[--len] = '\0';
if ((size_t)len + 6 > sizeof(stream.buf))
eprintf("<stdin>: head is too long\n");
stream.fd = -1;
stream.file = "<stdin>";
memcpy(stream.buf, line, (size_t)len);
memcpy(stream.buf + len, "\n\0uivf", 6);
stream.ptr = (size_t)len + 6;
free(line);
ewriteall(STDOUT_FILENO, stream.buf, stream.ptr, "<stdout>");
einit_stream(&stream);
if (!strcmp(stream.pixfmt, "xyza"))
process = process_xyza;
else if (!strcmp(stream.pixfmt, "xyza f"))
process = process_xyzaf;
else
eprintf("pixel format %s is not supported, try xyza\n", stream.pixfmt);
process();
efshut(stdin, "<stdin>");
return 0;
}
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