diff options
Diffstat (limited to 'toys/posix/uniq.c')
| -rw-r--r-- | toys/posix/uniq.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/toys/posix/uniq.c b/toys/posix/uniq.c index c127cfe9..114fc19b 100644 --- a/toys/posix/uniq.c +++ b/toys/posix/uniq.c @@ -31,18 +31,18 @@ GLOBALS( long maxchars; long nchars; long nfields; + long repeats; ) static char *skip(char *str) { - long nchars = TT.nchars, nfields; + long nchars = TT.nchars, nfields = TT.nfields; // Skip fields first - for (nfields = TT.nfields; nfields; str++) { + while (nfields--) { while (*str && isspace(*str)) str++; while (*str && !isspace(*str)) str++; - nfields--; } // Skip chars while (*str && nchars--) str++; @@ -61,7 +61,7 @@ static void print_line(FILE *f, char *line) void uniq_main(void) { FILE *infile = stdin, *outfile = stdout; - char *thisline = NULL, *prevline = NULL, *tmpline, eol = '\n'; + char *thisline = 0, *prevline = 0, *tmpline, eol = '\n'; size_t thissize, prevsize = 0, tmpsize; if (toys.optc >= 1) infile = xfopen(toys.optargs[0], "r"); @@ -70,8 +70,7 @@ void uniq_main(void) if (toys.optflags & FLAG_z) eol = 0; // If first line can't be read - if (getdelim(&prevline, &prevsize, eol, infile) < 0) - return; + if (getdelim(&prevline, &prevsize, eol, infile) < 0) return; while (getdelim(&thisline, &thissize, eol, infile) > 0) { int diff; @@ -86,16 +85,13 @@ void uniq_main(void) t2 = prevline; } - if (TT.maxchars == 0) { + if (TT.maxchars == 0) diff = !(toys.optflags & FLAG_i) ? strcmp(t1, t2) : strcasecmp(t1, t2); - } else { - diff = !(toys.optflags & FLAG_i) ? strncmp(t1, t2, TT.maxchars) - : strncasecmp(t1, t2, TT.maxchars); - } + else diff = !(toys.optflags & FLAG_i) ? strncmp(t1, t2, TT.maxchars) + : strncasecmp(t1, t2, TT.maxchars); - if (diff == 0) { // same - TT.repeats++; - } else { + if (!diff) TT.repeats++; + else { print_line(outfile, prevline); TT.repeats = 0; |