Mercurial > hg > toybox
view toys/posix/wc.c @ 818:264b9da809df
Simplify license text, as mentioned on the mailing list.
Reasoning: it was never my intent to require anybody to copy license
text into another project if they cut and pasted something out of
toybox. The "permission for any purpose" is as close to public domain
as you can get in our current screwed up legal system without making
people uncomfortable the _other_ way. (Besides, my initial reading of
that was "all copies of the source code" but that's not what it says,
and somebody pointed out that Android has "show license text" options
because paranoid lawyers think that sort of thing applies to the BINARY
version, which is nuts.)
author | Rob Landley <rob@landley.net> |
---|---|
date | Thu, 14 Mar 2013 09:02:37 -0500 |
parents | 6cc69be43c42 |
children | 3b85d2ce34aa |
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/* wc.c - Word count * * Copyright 2011 Rob Landley <rob@landley.net> * * See http://opengroup.org/onlinepubs/9699919799/utilities/wc.html USE_WC(NEWTOY(wc, USE_TOYBOX_I18N("m")"cwl", TOYFLAG_USR|TOYFLAG_BIN)) config WC bool "wc" default y help usage: wc -lwcm [FILE...] Count lines, words, and characters in input. -l show lines -w show words -c show bytes -m show characters By default outputs lines, words, bytes, and filename for each argument (or from stdin if none). Displays only either bytes or characters. */ #define FOR_wc #include "toys.h" GLOBALS( unsigned long totals[3]; ) 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, clen=1, space; unsigned long word=0, lengths[]={0,0,0}; for (;;) { len = read(fd, toybuf, sizeof(toybuf)); if (len<0) perror_msg("%s", name); if (len<1) break; for (i=0; i<len; i+=clen) { wchar_t wchar; if (CFG_TOYBOX_I18N && (toys.optflags&FLAG_m)) { clen = mbrtowc(&wchar, toybuf+i, len-i, 0); if (clen == -1) { clen = 1; continue; } if (clen == -2) break; if (clen == 0) clen=1; space = iswspace(wchar); } else space = isspace(toybuf[i]); if (toybuf[i]==10) lengths[0]++; if (space) word=0; else { if (!word) lengths[1]++; word=1; } lengths[2]++; } } show_lengths(lengths, name); } void wc_main(void) { toys.optflags |= (toys.optflags&8)>>1; loopfiles(toys.optargs, do_wc); if (toys.optc>1) show_lengths(TT.totals, "total"); }