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Make examples folder somewhat more focused

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This commit is contained in:
Justine Tunney 2021-03-05 06:09:12 -08:00
parent 5141d00992
commit e26bdbec52
29 changed files with 133 additions and 1225 deletions
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21
tool/viz/bf.c
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@ -16,8 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/fmt/itoa.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/bsr.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/str/tpenc.h"
@ -33,15 +37,22 @@
void bf(int fd) {
ssize_t rc;
uint64_t w;
int c, fg, fg2;
struct stat st;
size_t i, n, o;
int c, fg, fg2, bits;
char ibuf[W], obuf[12 + 1 + W * 6 + 1 + W * (2 + 11) + 11 + 1];
o = 0;
if (fstat(fd, &st) != -1 && S_ISREG(st.st_mode) && st.st_size) {
bits = bsr(roundup2pow(st.st_size));
bits = ROUNDUP(bits, 4);
} else {
bits = 48;
}
do {
if ((rc = read(fd, ibuf, W)) == -1) exit(2);
if (rc) {
n = 0;
n += uint64toarray_fixed16(o, obuf + n, 48);
n += uint64toarray_fixed16(o, obuf + n, bits);
o += rc;
obuf[n++] = ' ';
for (i = 0; i < rc; ++i) {
@ -65,21 +76,21 @@ void bf(int fd) {
}
if (fg2 != fg) {
fg = fg2;
obuf[n++] = '\e';
obuf[n++] = 033;
obuf[n++] = '[';
obuf[n++] = '3';
obuf[n++] = '8';
obuf[n++] = ';';
obuf[n++] = '5';
obuf[n++] = ';';
n += int64toarray_radix10(o, obuf + n);
n += int64toarray_radix10(fg, obuf + n);
obuf[n++] = 'm';
}
obuf[n++] = "0123456789abcdef"[c >> 4];
obuf[n++] = "0123456789abcdef"[c & 15];
/* obuf[n++] = ' '; */
}
obuf[n++] = '\e';
obuf[n++] = 033;
obuf[n++] = '[';
obuf[n++] = '0';
obuf[n++] = 'm';