Mercurial > hg > toybox
view toys/posix/wc.c @ 668:0ee40175a307
Fix catv to display byte 255 correctly. (It's both M- and ^?.)
author | Rob Landley <rob@landley.net> |
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date | Sat, 06 Oct 2012 01:54:24 -0500 |
parents | 5cb41d56f9d3 |
children | 7e846e281e38 |
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/* vi: set sw=4 ts=4: * * wc.c - Word count * * Copyright 2011 Rob Landley <rob@landley.net> * * See http://opengroup.org/onlinepubs/9699919799/utilities/wc.html USE_WC(NEWTOY(wc, "cwl", TOYFLAG_USR|TOYFLAG_BIN)) config WC bool "wc" default y help usage: wc -lwc [FILE...] Count lines, words, and characters in input. -l show lines -w show words -c show characters By default outputs lines, words, characters, and filename for each argument (or from stdin if none). */ #include "toys.h" DEFINE_GLOBALS( unsigned long totals[3]; ) #define TT this.wc static void show_lengths(unsigned long *lengths, char *name) { int i, nospace = 1; for (i=0; i<3; i++) { if (!toys.optflags || (toys.optflags&(1<<i))) { xprintf(" %ld"+nospace, lengths[i]); nospace = 0; } TT.totals[i] += lengths[i]; } if (*toys.optargs) xprintf(" %s", name); xputc('\n'); } static void do_wc(int fd, char *name) { int i, len; unsigned long word=0, lengths[]={0,0,0}; for (;;) { len = read(fd, toybuf, sizeof(toybuf)); if (len<0) { perror_msg("%s",name); toys.exitval = EXIT_FAILURE; } if (len<1) break; for (i=0; i<len; i++) { if (toybuf[i]==10) lengths[0]++; if (isspace(toybuf[i])) word=0; else { if (!word) lengths[1]++; word=1; } lengths[2]++; } } show_lengths(lengths, name); } void wc_main(void) { loopfiles(toys.optargs, do_wc); if (toys.optc>1) show_lengths(TT.totals, "total"); }