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- add support for seq -s <separator>

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This commit is contained in:
Bernhard Reutner-Fischer 2008-11-12 13:22:24 +00:00
parent 2598f761bb
commit c021cb08b5
2 changed files with 12 additions and 6 deletions
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13
coreutils/seq.c
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@ -16,8 +16,10 @@ int seq_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int seq_main(int argc, char **argv) int seq_main(int argc, char **argv)
{ {
double last, increment, i; double last, increment, i;
enum { OPT_w = 1 }; enum { OPT_w = 1, OPT_s };
unsigned opt = getopt32(argv, "+w"); const char *sep = "\n";
bool is_consecutive = 0;
unsigned opt = getopt32(argv, "+ws:", &sep);
unsigned width = 0; unsigned width = 0;
argc -= optind; argc -= optind;
@ -39,9 +41,12 @@ int seq_main(int argc, char **argv)
/* You should note that this is pos-5.0.91 semantics, -- FK. */ /* You should note that this is pos-5.0.91 semantics, -- FK. */
while ((increment > 0 && i <= last) || (increment < 0 && i >= last)) { while ((increment > 0 && i <= last) || (increment < 0 && i >= last)) {
printf("%0*g\n", width, i); if (is_consecutive++) {
printf("%s", sep);
}
printf("%0*g", width, i);
i += increment; i += increment;
} }
bb_putchar('\n');
return fflush(stdout); return fflush(stdout);
} }

3
include/usage.h
View File

@ -3594,12 +3594,13 @@
"\nOther options are silently ignored; -oi is implied" \ "\nOther options are silently ignored; -oi is implied" \
#define seq_trivial_usage \ #define seq_trivial_usage \
"[-w] [first [increment]] last" "[-w] [-s separator] [first [increment]] last"
#define seq_full_usage "\n\n" \ #define seq_full_usage "\n\n" \
"Print numbers from FIRST to LAST, in steps of INCREMENT.\n" \ "Print numbers from FIRST to LAST, in steps of INCREMENT.\n" \
"FIRST, INCREMENT default to 1\n" \ "FIRST, INCREMENT default to 1\n" \
"\nArguments:" \ "\nArguments:" \
"\n -w Pad to last with leading zeros" \ "\n -w Pad to last with leading zeros" \
"\n -s <string> Use string separator" \
"\n LAST" \ "\n LAST" \
"\n FIRST LAST" \ "\n FIRST LAST" \
"\n FIRST INCREMENT LAST" \ "\n FIRST INCREMENT LAST" \