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authorDenys Vlasenko <dvlasenk@redhat.com>2010-10-04 17:08:14 +0200
committerDenys Vlasenko <dvlasenk@redhat.com>2010-10-04 17:08:14 +0200
commitafc7b4c0d83ab82eb20cedae5d9676c3a21af4bf (patch)
tree6fb1ade933fda51bac6e13252bb19c3e3862c353 /coreutils
parent09e7dafbfe358bed5a3bbf45dc2369760c09a47e (diff)
downloadbusybox-afc7b4c0d83ab82eb20cedae5d9676c3a21af4bf.tar.gz
wc: add support for -m
function old new delta wc_main 601 637 +36 packed_usage 27357 27358 +1 Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/wc.c58
1 files changed, 45 insertions, 13 deletions
diff --git a/coreutils/wc.c b/coreutils/wc.c
index ae38fd5fe..ecadae59b 100644
--- a/coreutils/wc.c
+++ b/coreutils/wc.c
@@ -7,7 +7,7 @@
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-/* BB_AUDIT SUSv3 _NOT_ compliant -- option -m is not currently supported. */
+/* BB_AUDIT SUSv3 compliant. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/wc.html */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
@@ -19,10 +19,6 @@
* 3) no checking of ferror on EOF returns
* 4) isprint() wasn't considered when word counting.
*
- * TODO:
- *
- * When locale support is enabled, count multibyte chars in the '-m' case.
- *
* NOTES:
*
* The previous busybox wc attempted an optimization using stat for the
@@ -40,8 +36,8 @@
*
* for which 'wc -c' should output '0'.
*/
-
#include "libbb.h"
+#include "unicode.h"
#if !ENABLE_LOCALE_SUPPORT
# undef isprint
@@ -58,12 +54,39 @@
# define COUNT_FMT "u"
#endif
+/* We support -m even when UNICODE_SUPPORT is off,
+ * we just don't advertise it in help text,
+ * since it is the same as -c in this case.
+ */
+
+//usage:#define wc_trivial_usage
+//usage: "[-c"IF_UNICODE_SUPPORT("m")"lwL] [FILE]..."
+//usage:
+//usage:#define wc_full_usage "\n\n"
+//usage: "Count lines, words, and bytes for each FILE (or stdin)\n"
+//usage: "\nOptions:"
+//usage: "\n -c Count bytes"
+//usage: IF_UNICODE_SUPPORT(
+//usage: "\n -m Count characters"
+//usage: )
+//usage: "\n -l Count newlines"
+//usage: "\n -w Count words"
+//usage: "\n -L Print longest line length"
+//usage:
+//usage:#define wc_example_usage
+//usage: "$ wc /etc/passwd\n"
+//usage: " 31 46 1365 /etc/passwd\n"
+
+/* Order is important if we want to be compatible with
+ * column order in "wc -cmlwL" output:
+ */
enum {
- WC_LINES = 0,
- WC_WORDS = 1,
- WC_CHARS = 2,
- WC_LENGTH = 3,
- NUM_WCS = 4,
+ WC_LINES = 0,
+ WC_WORDS = 1,
+ WC_UNICHARS = 2,
+ WC_CHARS = 3,
+ WC_LENGTH = 4,
+ NUM_WCS = 5,
};
int wc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -79,7 +102,9 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
smallint status = EXIT_SUCCESS;
unsigned print_type;
- print_type = getopt32(argv, "lwcL");
+ init_unicode();
+
+ print_type = getopt32(argv, "lwcmL");
if (print_type == 0) {
print_type = (1 << WC_LINES) | (1 << WC_WORDS) | (1 << WC_CHARS);
@@ -130,9 +155,16 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
}
goto DO_EOF; /* Treat an EOF as '\r'. */
}
+
+ /* Cater for -c and -m */
++counts[WC_CHARS];
+ if (unicode_status != UNICODE_ON /* every byte is a new char */
+ || (c & 0xc0) != 0x80 /* it isn't a 2nd+ byte of a Unicode char */
+ ) {
+ ++counts[WC_UNICHARS];
+ }
- if (isprint_asciionly(c)) {
+ if (isprint_asciionly(c)) { /* FIXME: not unicode-aware */
++linepos;
if (!isspace(c)) {
in_word = 1;