From owner-freebsd-questions@FreeBSD.ORG Wed Sep 17 10:17:49 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A74DC106566B for ; Wed, 17 Sep 2008 10:17:49 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 223D38FC16 for ; Wed, 17 Sep 2008 10:17:48 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (adsl83-215.kln.forthnet.gr [77.49.50.215]) (authenticated bits=128) by igloo.linux.gr (8.14.3/8.14.3/Debian-5) with ESMTP id m8HAHaKG004717 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 17 Sep 2008 13:17:42 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.3/8.14.3) with ESMTP id m8HAHax1067860; Wed, 17 Sep 2008 13:17:36 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.3/8.14.3/Submit) id m8HAHZVM067859; Wed, 17 Sep 2008 13:17:35 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) From: Giorgos Keramidas To: unga888@yahoo.com References: <68855.59916.qm@web57008.mail.re3.yahoo.com> Date: Wed, 17 Sep 2008 13:17:35 +0300 In-Reply-To: <68855.59916.qm@web57008.mail.re3.yahoo.com> (Unga's message of "Wed, 17 Sep 2008 00:45:46 -0700 (PDT)") Message-ID: <87wshboz40.fsf@kobe.laptop> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-MailScanner-ID: m8HAHaKG004717 X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.847, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.55, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: freebsd-questions@freebsd.org Subject: Re: How to split a C string by a string? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Sep 2008 10:17:49 -0000 On Wed, 17 Sep 2008 00:45:46 -0700 (PDT), Unga wrote: > Hi all > > I'm writing an C application on FreeBSD 7+. I need to split a string > by another string (ie. the delimiter is "xxx") similar to strtok split > a string by a single char. Is there a standard function or is there a > FreeBSD functions for this? You can use strstr() to look for the "xxx" delimited and split that that point: % cat -n foo.c 1 #include 2 #include 3 4 int 5 main(void) 6 { 7 char text[] = "Hello string world"; 8 char delim[] = " string "; 9 size_t dlen = sizeof(delim) / sizeof(delim[0]) - 1; 10 char *p; 11 12 p = strstr(text, delim); 13 if (p == NULL) 14 return 0; /* No match */ 15 16 printf("First part = \"%.*s\"\n", p - text, text); 17 printf("Second part = \"%s\"\n", p + dlen); 18 return 0; 19 } % cc -std=iso9899:1990 -O2 -Wall foo.c % ./a.out First part = "Hello" Second part = "world" %