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authorDenys Vlasenko2010-10-04 17:04:20 +0200
committerDenys Vlasenko2010-10-04 17:04:20 +0200
commit09e7dafbfe358bed5a3bbf45dc2369760c09a47e (patch)
tree500cf12c1a0dbb245e00aea79be48b6fcc53ddb7 /coreutils/wc.c
parent9a1b2605476c8e6e69a3666e9f538004b6623962 (diff)
downloadbusybox-09e7dafbfe358bed5a3bbf45dc2369760c09a47e.zip
busybox-09e7dafbfe358bed5a3bbf45dc2369760c09a47e.tar.gz
wc: preparatory patch, no logic changes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'coreutils/wc.c')
-rw-r--r--coreutils/wc.c31
1 files changed, 16 insertions, 15 deletions
diff --git a/coreutils/wc.c b/coreutils/wc.c
index 4f14374..ae38fd5 100644
--- a/coreutils/wc.c
+++ b/coreutils/wc.c
@@ -59,10 +59,11 @@
#endif
enum {
- WC_LINES = 0,
- WC_WORDS = 1,
- WC_CHARS = 2,
- WC_LENGTH = 3
+ WC_LINES = 0,
+ WC_WORDS = 1,
+ WC_CHARS = 2,
+ WC_LENGTH = 3,
+ NUM_WCS = 4,
};
int wc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -72,8 +73,8 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
const char *start_fmt = " %9"COUNT_FMT + 1;
const char *fname_fmt = " %s\n";
COUNT_T *pcounts;
- COUNT_T counts[4];
- COUNT_T totals[4];
+ COUNT_T counts[NUM_WCS];
+ COUNT_T totals[NUM_WCS];
int num_files;
smallint status = EXIT_SUCCESS;
unsigned print_type;
@@ -99,7 +100,7 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
pcounts = counts;
num_files = 0;
- while ((arg = *argv++) != 0) {
+ while ((arg = *argv++) != NULL) {
FILE *fp;
const char *s;
unsigned u;
@@ -117,20 +118,20 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
linepos = 0;
in_word = 0;
- do {
+ while (1) {
int c;
/* Our -w doesn't match GNU wc exactly... oh well */
- ++counts[WC_CHARS];
c = getc(fp);
if (c == EOF) {
if (ferror(fp)) {
bb_simple_perror_msg(arg);
status = EXIT_FAILURE;
}
- --counts[WC_CHARS];
goto DO_EOF; /* Treat an EOF as '\r'. */
}
+ ++counts[WC_CHARS];
+
if (isprint_asciionly(c)) {
++linepos;
if (!isspace(c)) {
@@ -167,18 +168,18 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
if (c == EOF) {
break;
}
- } while (1);
+ }
+
+ fclose_if_not_stdin(fp);
if (totals[WC_LENGTH] < counts[WC_LENGTH]) {
totals[WC_LENGTH] = counts[WC_LENGTH];
}
totals[WC_LENGTH] -= counts[WC_LENGTH];
- fclose_if_not_stdin(fp);
-
OUTPUT:
/* coreutils wc tries hard to print pretty columns
- * (saves results for all files, find max col len etc...)
+ * (saves results for all files, finds max col len etc...)
* we won't try that hard, it will bloat us too much */
s = start_fmt;
u = 0;
@@ -188,7 +189,7 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
s = " %9"COUNT_FMT; /* Ok... restore the leading space. */
}
totals[u] += pcounts[u];
- } while (++u < 4);
+ } while (++u < NUM_WCS);
printf(fname_fmt, arg);
}