Date: Thu, 15 Jan 2009 04:57:21 +0000 (UTC) From: Giorgos Keramidas <keramida@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-6@freebsd.org Subject: svn commit: r187286 - stable/6/usr.bin/wc Message-ID: <200901150457.n0F4vLO3065092@svn.freebsd.org>
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Author: keramida (doc committer) Date: Thu Jan 15 04:57:21 2009 New Revision: 187286 URL: http://svn.freebsd.org/changeset/base/187286 Log: MFC 185714 from /head Add a -L option to wc(1), for finger compatibility with the GNU wc utility. The -L option can be used to report the length of the longest line wc has seen in one or more files. It is disabled by default, and wc uses the standard `-lwc'. Submitted by: Sheldon Givens, sheldon at sigsegv.ca Modified: stable/6/usr.bin/wc/ (props changed) stable/6/usr.bin/wc/wc.1 stable/6/usr.bin/wc/wc.c Modified: stable/6/usr.bin/wc/wc.1 ============================================================================== --- stable/6/usr.bin/wc/wc.1 Thu Jan 15 04:54:43 2009 (r187285) +++ stable/6/usr.bin/wc/wc.1 Thu Jan 15 04:57:21 2009 (r187286) @@ -35,7 +35,7 @@ .\" @(#)wc.1 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd February 23, 2005 +.Dd December 6, 2008 .Dt WC 1 .Os .Sh NAME @@ -43,7 +43,7 @@ .Nd word, line, character, and byte count .Sh SYNOPSIS .Nm -.Op Fl clmw +.Op Fl Lclmw .Op Ar .Sh DESCRIPTION The @@ -71,6 +71,15 @@ the last file. .Pp The following options are available: .Bl -tag -width Ds +.It Fl L +The number of characters in the longest input line +is written to the standard output. +When more then one +.Ar file +argument is specified, the longest input line of +.Em all +files is reported as the value of the final +.Dq total . .It Fl c The number of bytes in each input file is written to the standard output. @@ -129,6 +138,10 @@ and as well as the totals for both: .Pp .Dl "wc -mlw report1 report2" +.Pp +Find the longest line in a list of files: +.Pp +.Dl "wc -L file1 file2 file3 | fgrep total" .Sh COMPATIBILITY Historically, the .Nm @@ -149,6 +162,16 @@ This implementation defines a ``word'' i .Xr iswspace 3 function, as required by .St -p1003.2 . +.Pp +The +.Fl L +option is a non-standard +.Fx +extension, compatible with the +.Fl L +option of the GNU +.Nm +utility. .Sh SEE ALSO .Xr iswspace 3 .Sh STANDARDS Modified: stable/6/usr.bin/wc/wc.c ============================================================================== --- stable/6/usr.bin/wc/wc.c Thu Jan 15 04:54:43 2009 (r187285) +++ stable/6/usr.bin/wc/wc.c Thu Jan 15 04:57:21 2009 (r187286) @@ -62,8 +62,8 @@ __FBSDID("$FreeBSD$"); #include <wchar.h> #include <wctype.h> -uintmax_t tlinect, twordct, tcharct; -int doline, doword, dochar, domulti; +uintmax_t tlinect, twordct, tcharct, tlongline; +int doline, doword, dochar, domulti, dolongline; static int cnt(const char *); static void usage(void); @@ -75,7 +75,7 @@ main(int argc, char *argv[]) (void) setlocale(LC_CTYPE, ""); - while ((ch = getopt(argc, argv, "clmw")) != -1) + while ((ch = getopt(argc, argv, "clmwL")) != -1) switch((char)ch) { case 'l': doline = 1; @@ -87,6 +87,9 @@ main(int argc, char *argv[]) dochar = 1; domulti = 0; break; + case 'L': + dolongline = 1; + break; case 'm': domulti = 1; dochar = 0; @@ -99,7 +102,7 @@ main(int argc, char *argv[]) argc -= optind; /* Wc's flags are on by default. */ - if (doline + doword + dochar + domulti == 0) + if (doline + doword + dochar + domulti + dolongline == 0) doline = doword = dochar = 1; errors = 0; @@ -125,6 +128,8 @@ main(int argc, char *argv[]) (void)printf(" %7ju", twordct); if (dochar || domulti) (void)printf(" %7ju", tcharct); + if (dolongline) + (void)printf(" %7ju", tlongline); (void)printf(" total\n"); } exit(errors == 0 ? 0 : 1); @@ -134,7 +139,7 @@ static int cnt(const char *file) { struct stat sb; - uintmax_t linect, wordct, charct; + uintmax_t linect, wordct, charct, llct, tmpll; int fd, len, warned; size_t clen; short gotsp; @@ -143,7 +148,7 @@ cnt(const char *file) wchar_t wch; mbstate_t mbs; - linect = wordct = charct = 0; + linect = wordct = charct = llct = tmpll = 0; if (file == NULL) { file = "stdin"; fd = STDIN_FILENO; @@ -168,8 +173,13 @@ cnt(const char *file) } charct += len; for (p = buf; len--; ++p) - if (*p == '\n') + if (*p == '\n') { + if (tmpll > llct) + llct = tmpll; + tmpll = 0; ++linect; + } else + tmpll++; } tlinect += linect; (void)printf(" %7ju", linect); @@ -177,6 +187,11 @@ cnt(const char *file) tcharct += charct; (void)printf(" %7ju", charct); } + if (dolongline) { + if (llct > tlongline) + tlongline = llct; + (void)printf(" %7ju", tlongline); + } (void)close(fd); return (0); } @@ -229,10 +244,16 @@ word: gotsp = 1; else if (clen == 0) clen = 1; charct++; + if (wch != L'\n') + tmpll++; len -= clen; p += clen; - if (wch == L'\n') + if (wch == L'\n') { + if (tmpll > llct) + llct = tmpll; + tmpll = 0; ++linect; + } if (iswspace(wch)) gotsp = 1; else if (gotsp) { @@ -256,6 +277,11 @@ word: gotsp = 1; tcharct += charct; (void)printf(" %7ju", charct); } + if (dolongline) { + if (llct > tlongline) + tlongline = llct; + (void)printf(" %7ju", llct); + } (void)close(fd); return (0); } @@ -263,6 +289,6 @@ word: gotsp = 1; static void usage() { - (void)fprintf(stderr, "usage: wc [-clmw] [file ...]\n"); + (void)fprintf(stderr, "usage: wc [-Lclmw] [file ...]\n"); exit(1); }
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