Applied patch from I.Q. to add sort -u as a feature.
This commit is contained in:
Mark Whitley
parent
6e808ca354
commit
fccaa3629b
5
Config.h
5
Config.h
@ -235,9 +235,12 @@
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// Enable support for tar -z option (currently only works for inflating)
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#define BB_FEATURE_TAR_GZIP
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//
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//// Enable reverse sort
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// Enable reverse sort
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#define BB_FEATURE_SORT_REVERSE
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//
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// Enable uniqe sort
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#define BB_FEATURE_SORT_UNIQUE
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//
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// Enable command line editing in the shell.
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// Only relevant if BB_SH is enabled. On by default.
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#define BB_FEATURE_COMMAND_EDITING
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@ -1356,15 +1356,24 @@
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"[2 second delay results]\n"
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#ifdef BB_FEATURE_SORT_UNIQUE
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#define USAGE_SORT_UNIQUE(a) a
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#else
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#define USAGE_SORT_UNIQUE(a)
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#endif
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#ifdef BB_FEATURE_SORT_REVERSE
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#define USAGE_SORT_REVERSE(a) a
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#else
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#define USAGE_SORT_REVERSE(a)
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#endif
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#define sort_trivial_usage \
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"[-n]" USAGE_SORT_REVERSE(" [-r]") " [FILE]..."
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"[-n" USAGE_SORT_REVERSE("r") USAGE_SORT_UNIQUE("u") "] [FILE]..."
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#define sort_full_usage \
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"Sorts lines of text in the specified files"
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"Sorts lines of text in the specified files\n\n"\
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"Options:\n" \
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USAGE_SORT_UNIQUE("\t-u\tsuppress duplicate lines\n") \
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USAGE_SORT_REVERSE("\t-r\tsort in reverse order\n") \
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"\t-n\tsort numerics"
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#define sort_example_usage \
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"$ echo -e \"e\\nf\\nb\\nd\\nc\\na\" | sort\n" \
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"a\n" \
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@ -46,8 +46,11 @@ int sort_main(int argc, char **argv)
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#ifdef BB_FEATURE_SORT_REVERSE
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int reverse = FALSE;
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#endif
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#ifdef BB_FEATURE_SORT_UNIQUE
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int unique = FALSE;
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#endif
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while ((opt = getopt(argc, argv, "nr")) != -1) {
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while ((opt = getopt(argc, argv, "nru")) != -1) {
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switch (opt) {
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case 'n':
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compare = compare_numeric;
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@ -56,6 +59,11 @@ int sort_main(int argc, char **argv)
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case 'r':
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reverse = TRUE;
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break;
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#endif
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#ifdef BB_FEATURE_SORT_UNIQUE
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case 'u':
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unique = TRUE;
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break;
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#endif
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default:
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show_usage();
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@ -81,12 +89,18 @@ int sort_main(int argc, char **argv)
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/* print it */
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#ifdef BB_FEATURE_SORT_REVERSE
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if (reverse)
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for (i = nlines - 1; 0 <= i; i--)
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puts(lines[i]);
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else
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if (reverse) {
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for (i = --nlines; 0 <= i; i--)
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#ifdef BB_FEATURE_SORT_UNIQUE
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if((!unique) || (i == nlines) || (strcmp(lines[i + 1], lines[i])))
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#endif
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for (i = 0; i < nlines; i++)
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puts(lines[i]);
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puts(lines[i]);
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} else
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#endif
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for (i = 0; i < nlines; i++)
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#ifdef BB_FEATURE_SORT_UNIQUE
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if((!unique) || (!i) || (strcmp(lines[i - 1], lines[i])))
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#endif
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puts(lines[i]);
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return EXIT_SUCCESS;
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}
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@ -1356,15 +1356,24 @@
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"[2 second delay results]\n"
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#ifdef BB_FEATURE_SORT_UNIQUE
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#define USAGE_SORT_UNIQUE(a) a
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#else
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#define USAGE_SORT_UNIQUE(a)
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#endif
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#ifdef BB_FEATURE_SORT_REVERSE
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#define USAGE_SORT_REVERSE(a) a
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#else
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#define USAGE_SORT_REVERSE(a)
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#endif
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#define sort_trivial_usage \
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"[-n]" USAGE_SORT_REVERSE(" [-r]") " [FILE]..."
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"[-n" USAGE_SORT_REVERSE("r") USAGE_SORT_UNIQUE("u") "] [FILE]..."
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#define sort_full_usage \
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"Sorts lines of text in the specified files"
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"Sorts lines of text in the specified files\n\n"\
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"Options:\n" \
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USAGE_SORT_UNIQUE("\t-u\tsuppress duplicate lines\n") \
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USAGE_SORT_REVERSE("\t-r\tsort in reverse order\n") \
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"\t-n\tsort numerics"
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#define sort_example_usage \
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"$ echo -e \"e\\nf\\nb\\nd\\nc\\na\" | sort\n" \
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"a\n" \
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28
sort.c
28
sort.c
@ -46,8 +46,11 @@ int sort_main(int argc, char **argv)
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#ifdef BB_FEATURE_SORT_REVERSE
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int reverse = FALSE;
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#endif
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#ifdef BB_FEATURE_SORT_UNIQUE
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int unique = FALSE;
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#endif
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while ((opt = getopt(argc, argv, "nr")) != -1) {
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while ((opt = getopt(argc, argv, "nru")) != -1) {
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switch (opt) {
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case 'n':
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compare = compare_numeric;
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@ -56,6 +59,11 @@ int sort_main(int argc, char **argv)
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case 'r':
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reverse = TRUE;
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break;
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#endif
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#ifdef BB_FEATURE_SORT_UNIQUE
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case 'u':
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unique = TRUE;
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break;
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#endif
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default:
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show_usage();
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@ -81,12 +89,18 @@ int sort_main(int argc, char **argv)
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/* print it */
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#ifdef BB_FEATURE_SORT_REVERSE
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if (reverse)
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for (i = nlines - 1; 0 <= i; i--)
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puts(lines[i]);
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else
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if (reverse) {
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for (i = --nlines; 0 <= i; i--)
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#ifdef BB_FEATURE_SORT_UNIQUE
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if((!unique) || (i == nlines) || (strcmp(lines[i + 1], lines[i])))
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#endif
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for (i = 0; i < nlines; i++)
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puts(lines[i]);
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puts(lines[i]);
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} else
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#endif
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for (i = 0; i < nlines; i++)
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#ifdef BB_FEATURE_SORT_UNIQUE
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if((!unique) || (!i) || (strcmp(lines[i - 1], lines[i])))
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#endif
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puts(lines[i]);
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return EXIT_SUCCESS;
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}
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13
usage.h
13
usage.h
@ -1356,15 +1356,24 @@
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"[2 second delay results]\n"
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#ifdef BB_FEATURE_SORT_UNIQUE
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#define USAGE_SORT_UNIQUE(a) a
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#else
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#define USAGE_SORT_UNIQUE(a)
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#endif
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#ifdef BB_FEATURE_SORT_REVERSE
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#define USAGE_SORT_REVERSE(a) a
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#else
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#define USAGE_SORT_REVERSE(a)
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#endif
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#define sort_trivial_usage \
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"[-n]" USAGE_SORT_REVERSE(" [-r]") " [FILE]..."
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"[-n" USAGE_SORT_REVERSE("r") USAGE_SORT_UNIQUE("u") "] [FILE]..."
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#define sort_full_usage \
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"Sorts lines of text in the specified files"
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"Sorts lines of text in the specified files\n\n"\
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"Options:\n" \
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USAGE_SORT_UNIQUE("\t-u\tsuppress duplicate lines\n") \
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USAGE_SORT_REVERSE("\t-r\tsort in reverse order\n") \
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"\t-n\tsort numerics"
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#define sort_example_usage \
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"$ echo -e \"e\\nf\\nb\\nd\\nc\\na\" | sort\n" \
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"a\n" \
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