diff options
| -rw-r--r-- | coreutils/sort.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/coreutils/sort.c b/coreutils/sort.c index 4d741e7..05e5c90 100644 --- a/coreutils/sort.c +++ b/coreutils/sort.c @@ -60,6 +60,7 @@ //usage: IF_FEATURE_SORT_BIG( //usage: "\n -g General numerical sort" //usage: "\n -M Sort month" +//usage: "\n -V Sort version" //usage: "\n -t CHAR Field separator" //usage: "\n -k N[,M] Sort by Nth field" //usage: ) @@ -91,32 +92,33 @@ /* These are sort types */ enum { - FLAG_n = 1, /* Numeric sort */ - FLAG_g = 2, /* Sort using strtod() */ - FLAG_M = 4, /* Sort date */ + FLAG_n = 1 << 0, /* Numeric sort */ + FLAG_g = 1 << 1, /* Sort using strtod() */ + FLAG_M = 1 << 2, /* Sort date */ + FLAG_V = 1 << 3, /* Sort version */ /* ucsz apply to root level only, not keys. b at root level implies bb */ - FLAG_u = 8, /* Unique */ - FLAG_c = 0x10, /* Check: no output, exit(!ordered) */ - FLAG_s = 0x20, /* Stable sort, no ascii fallback at end */ - FLAG_z = 0x40, /* Input and output is NUL terminated, not \n */ + FLAG_u = 1 << 4, /* Unique */ + FLAG_c = 1 << 5, /* Check: no output, exit(!ordered) */ + FLAG_s = 1 << 6, /* Stable sort, no ascii fallback at end */ + FLAG_z = 1 << 7, /* Input and output is NUL terminated, not \n */ /* These can be applied to search keys, the previous four can't */ - FLAG_b = 0x80, /* Ignore leading blanks */ - FLAG_r = 0x100, /* Reverse */ - FLAG_d = 0x200, /* Ignore !(isalnum()|isspace()) */ - FLAG_f = 0x400, /* Force uppercase */ - FLAG_i = 0x800, /* Ignore !isprint() */ - FLAG_m = 0x1000, /* ignored: merge already sorted files; do not sort */ - FLAG_S = 0x2000, /* ignored: -S, --buffer-size=SIZE */ - FLAG_T = 0x4000, /* ignored: -T, --temporary-directory=DIR */ - FLAG_o = 0x8000, - FLAG_k = 0x10000, - FLAG_t = 0x20000, + FLAG_b = 1 << 8, /* Ignore leading blanks */ + FLAG_r = 1 << 9, /* Reverse */ + FLAG_d = 1 << 10, /* Ignore !(isalnum()|isspace()) */ + FLAG_f = 1 << 11, /* Force uppercase */ + FLAG_i = 1 << 12, /* Ignore !isprint() */ + FLAG_m = 1 << 13, /* ignored: merge already sorted files; do not sort */ + FLAG_S = 1 << 14, /* ignored: -S, --buffer-size=SIZE */ + FLAG_T = 1 << 15, /* ignored: -T, --temporary-directory=DIR */ + FLAG_o = 1 << 16, + FLAG_k = 1 << 17, + FLAG_t = 1 << 18, FLAG_bb = 0x80000000, /* Ignore trailing blanks */ FLAG_no_tie_break = 0x40000000, }; static const char sort_opt_str[] ALIGN1 = "^" - "ngMucszbrdfimS:T:o:k:*t:" + "ngMVucszbrdfimS:T:o:k:*t:" "\0" "o--o:t--t"/*-t, -o: at most one of each*/; /* * OPT_STR must not be string literal, needs to have stable address: @@ -273,10 +275,15 @@ static int compare_keys(const void *xarg, const void *yarg) y = *(char **)yarg; #endif /* Perform actual comparison */ - switch (flags & (FLAG_n | FLAG_M | FLAG_g)) { + switch (flags & (FLAG_n | FLAG_g | FLAG_M | FLAG_V)) { default: bb_error_msg_and_die("unknown sort type"); break; +#if defined(HAVE_STRVERSCMP) && HAVE_STRVERSCMP == 1 + case FLAG_V: + retval = strverscmp(x, y); + break; +#endif /* Ascii sort */ case 0: #if ENABLE_LOCALE_SUPPORT |