static void
sequential(struct fdescr *dsc, int fdescrlen, Rune *delim, size_t delimlen)
{
Rune c, last;
size_t i, d;
for (i = 0; i < fdescrlen; i++) {
d = 0;
last = 0;
while (efgetrune(&c, dsc[i].fp, dsc[i].name)) {
if (last == '\n') {
if (delim[d] != '\0')
efputrune(&delim[d], stdout, "<stdout>");
d = (d + 1) % delimlen;
}
if (c != '\n')
efputrune(&c, stdout, "<stdout>");
last = c;
}
if (last == '\n')
efputrune(&last, stdout, "<stdout>");
}
}
static void
strings(FILE *fp, const char *fname, size_t len)
{
Rune r, *rbuf;
size_t i, bread;
off_t off;
rbuf = ereallocarray(NULL, len, sizeof(*rbuf));
for (off = 0, i = 0; (bread = efgetrune(&r, fp, fname)); ) {
off += bread;
if (r == Runeerror)
continue;
if (!isprintrune(r)) {
if (i > len)
putchar('\n');
i = 0;
continue;
}
if (i < len) {
rbuf[i++] = r;
continue;
} else if (i > len) {
efputrune(&r, stdout, "<stdout>");
continue;
}
printf(format, (long)off - i);
for (i = 0; i < len; i++)
efputrune(rbuf + i, stdout, "<stdout>");
efputrune(&r, stdout, "<stdout>");
i++;
}
free(rbuf);
}
static void
unexpand(const char *file, FILE *fp)
{
Rune r;
size_t last = 0, col = 0, i;
int bol = 1;
while (efgetrune(&r, fp, file)) {
switch (r) {
case ' ':
if (!bol && !aflag)
last++;
col++;
break;
case '\t':
if (tablistlen == 1) {
if (!bol && !aflag)
last += tablist[0] - col % tablist[0];
col += tablist[0] - col % tablist[0];
} else {
for (i = 0; i < tablistlen; i++)
if (col < tablist[i])
break;
if (!bol && !aflag)
last = tablist[i];
col = tablist[i];
}
break;
case '\b':
if (bol || aflag)
unexpandspan(last, col);
col -= (col > 0);
last = col;
bol = 0;
break;
case '\n':
if (bol || aflag)
unexpandspan(last, col);
last = col = 0;
bol = 1;
break;
default:
if (bol || aflag)
unexpandspan(last, col);
last = ++col;
bol = 0;
break;
}
if ((r != ' ' && r != '\t') || (!aflag && !bol))
efputrune(&r, stdout, "<stdout>");
}
if (last < col && (bol || aflag))
unexpandspan(last, col);
}
static void
parallel(struct fdescr *dsc, int fdescrlen, Rune *delim, size_t delimlen)
{
Rune c, d;
size_t i, m;
ssize_t last;
nextline:
last = -1;
for (i = 0; i < fdescrlen; i++) {
d = delim[i % delimlen];
c = 0;
for (; efgetrune(&c, dsc[i].fp, dsc[i].name) ;) {
for (m = last + 1; m < i; m++)
efputrune(&(delim[m % delimlen]), stdout, "<stdout>");
last = i;
if (c == '\n') {
if (i != fdescrlen - 1)
c = d;
efputrune(&c, stdout, "<stdout>");
break;
}
efputrune(&c, stdout, "<stdout>");
}
if (c == 0 && last != -1) {
if (i == fdescrlen - 1)
putchar('\n');
else
efputrune(&d, stdout, "<stdout>");
last++;
}
}
if (last != -1)
goto nextline;
}
static void
unexpandspan(size_t last, size_t col)
{
size_t off, i, j;
Rune r;
if (tablistlen == 1) {
i = 0;
off = last % tablist[i];
if ((col - last) + off >= tablist[i] && last < col)
last -= off;
r = '\t';
for (; last + tablist[i] <= col; last += tablist[i])
efputrune(&r, stdout, "<stdout>");
r = ' ';
for (; last < col; last++)
efputrune(&r, stdout, "<stdout>");
} else {
for (i = 0; i < tablistlen; i++)
if (col < tablist[i])
break;
for (j = 0; j < tablistlen; j++)
if (last < tablist[j])
break;
r = '\t';
for (; j < i; j++) {
efputrune(&r, stdout, "<stdout>");
last = tablist[j];
}
r = ' ';
for (; last < col; last++)
efputrune(&r, stdout, "<stdout>");
}
}
int
main(int argc, char *argv[])
{
Rune *rarg;
size_t i, j, argi, lastargi, formatlen, blen;
long long num;
double dou;
int cooldown = 0, width, precision, ret = 0;
char *format, *tmp, *arg, *fmt, flag;
argv0 = argv[0];
if (argc < 2)
usage();
format = argv[1];
if ((tmp = strstr(format, "\\c"))) {
*tmp = 0;
cooldown = 1;
}
formatlen = unescape(format);
if (formatlen == 0)
return 0;
lastargi = 0;
for (i = 0, argi = 2; !cooldown || i < formatlen; i++, i = cooldown ? i : (i % formatlen)) {
if (i == 0) {
if (lastargi == argi)
break;
lastargi = argi;
}
if (format[i] != '%') {
putchar(format[i]);
continue;
}
/* flag */
for (flag = '\0', i++; strchr("#-+ 0", format[i]); i++) {
flag = format[i];
}
/* field width */
width = -1;
if (format[i] == '*') {
if (argi < argc)
width = estrtonum(argv[argi++], 0, INT_MAX);
else
cooldown = 1;
i++;
} else {
j = i;
for (; strchr("+-0123456789", format[i]); i++);
if (j != i) {
tmp = estrndup(format + j, i - j);
width = estrtonum(tmp, 0, INT_MAX);
free(tmp);
} else {
width = 0;
}
}
/* field precision */
precision = -1;
if (format[i] == '.') {
if (format[++i] == '*') {
if (argi < argc)
precision = estrtonum(argv[argi++], 0, INT_MAX);
else
cooldown = 1;
i++;
} else {
j = i;
for (; strchr("+-0123456789", format[i]); i++);
if (j != i) {
tmp = estrndup(format + j, i - j);
precision = estrtonum(tmp, 0, INT_MAX);
free(tmp);
} else {
precision = 0;
}
}
}
if (format[i] != '%') {
if (argi < argc)
arg = argv[argi++];
else {
arg = "";
cooldown = 1;
}
} else {
putchar('%');
continue;
}
switch (format[i]) {
case 'b':
if ((tmp = strstr(arg, "\\c"))) {
*tmp = 0;
blen = unescape(arg);
fwrite(arg, sizeof(*arg), blen, stdout);
return 0;
}
blen = unescape(arg);
fwrite(arg, sizeof(*arg), blen, stdout);
break;
case 'c':
unescape(arg);
rarg = ereallocarray(NULL, utflen(arg) + 1, sizeof(*rarg));
utftorunestr(arg, rarg);
efputrune(rarg, stdout, "<stdout>");
free(rarg);
break;
case 's':
printf("%*.*s", width, precision, arg);
break;
case 'd': case 'i': case 'o': case 'u': case 'x': case 'X':
for (j = 0; isspace(arg[j]); j++);
if (arg[j] == '\'' || arg[j] == '\"') {
arg += j + 1;
unescape(arg);
rarg = ereallocarray(NULL, utflen(arg) + 1, sizeof(*rarg));
utftorunestr(arg, rarg);
num = rarg[0];
} else if (arg[0]) {
errno = 0;
if (format[i] == 'd' || format[i] == 'i')
num = strtol(arg, &tmp, 0);
else
num = strtoul(arg, &tmp, 0);
if (tmp == arg || *tmp != '\0') {
ret = 1;
weprintf("%%%c %s: conversion error\n",
format[i], arg);
}
if (errno == ERANGE) {
ret = 1;
weprintf("%%%c %s: out of range\n",
format[i], arg);
}
} else {
num = 0;
}
fmt = estrdup(flag ? "%#*.*ll#" : "%*.*ll#");
if (flag)
fmt[1] = flag;
fmt[flag ? 7 : 6] = format[i];
printf(fmt, width, precision, num);
free(fmt);
break;
case 'a': case 'A': case 'e': case 'E': case 'f': case 'F': case 'g': case 'G':
fmt = estrdup(flag ? "%#*.*#" : "%*.*#");
if (flag)
fmt[1] = flag;
fmt[flag ? 5 : 4] = format[i];
dou = (strlen(arg) > 0) ? estrtod(arg) : 0;
printf(fmt, width, precision, dou);
free(fmt);
break;
default:
eprintf("Invalid format specifier '%c'.\n", format[i]);
}
if (argi >= argc)
cooldown = 1;
}
return fshut(stdout, "<stdout>") | ret;
}