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#define RL_BUF_SIZE 1024
static char readline_buf[RL_BUF_SIZE];
StringView
read_line(void) {
// Clear buffer.
for (size_t i = 0; i < RL_BUF_SIZE; i++) {
readline_buf[i] = 0;
}
// Barebones readline implementation.
size_t n = 0;
char c;
while ((c = getchar()) != '\n') {
if (c == '\b') {
readline_buf[n] = '\0';
n--;
} else if (c == EOF || c == '\0') {
return (StringView){ .start = NULL, .n = 0 };
} else if ((c >= ' ' && c <= '~') && n < RL_BUF_SIZE) {
readline_buf[n] = c;
n++;
}
}
StringView sv = (StringView){
.start = (char *)&readline_buf,
.n = n,
};
return sv;
}
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