Return-Path: X-Original-To: notmuch@notmuchmail.org Delivered-To: notmuch@notmuchmail.org Received: from localhost (localhost [127.0.0.1]) by olra.theworths.org (Postfix) with ESMTP id E9425431FBD for ; Fri, 21 Dec 2012 05:08:42 -0800 (PST) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[none] autolearn=disabled Received: from olra.theworths.org ([127.0.0.1]) by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jPWNMr0KASsL for ; Fri, 21 Dec 2012 05:08:41 -0800 (PST) Received: from tesseract.cs.unb.ca (tesseract.cs.unb.ca [131.202.240.238]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by olra.theworths.org (Postfix) with ESMTPS id 34C52431FC0 for ; Fri, 21 Dec 2012 05:08:39 -0800 (PST) Received: from fctnnbsc30w-156034082078.dhcp-dynamic.fibreop.nb.bellaliant.net ([156.34.82.78] helo=zancas.localnet) by tesseract.cs.unb.ca with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1Tm2L6-0005db-Ew; Fri, 21 Dec 2012 09:08:36 -0400 Received: from bremner by zancas.localnet with local (Exim 4.80) (envelope-from ) id 1Tm2L1-0005yX-0L; Fri, 21 Dec 2012 09:08:31 -0400 From: david@tethera.net To: notmuch@notmuchmail.org Subject: [Patch v8 05/18] util/string-util: add strnspn Date: Fri, 21 Dec 2012 09:08:14 -0400 Message-Id: <1356095307-22895-5-git-send-email-david@tethera.net> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1356095307-22895-1-git-send-email-david@tethera.net> References: <1356095307-22895-1-git-send-email-david@tethera.net> X-Spam_bar: - Cc: David Bremner X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Dec 2012 13:08:43 -0000 From: David Bremner this is like the standard strspn, but with a limit on how much of a prefix is tested. --- util/string-util.c | 12 ++++++++++++ util/string-util.h | 5 +++++ 2 files changed, 17 insertions(+) diff --git a/util/string-util.c b/util/string-util.c index b9039f4..7d5deaf 100644 --- a/util/string-util.c +++ b/util/string-util.c @@ -35,6 +35,18 @@ strtok_len (char *s, const char *delim, size_t *len) } +size_t +strnspn (const char *str, size_t len, const char *accept) +{ + size_t count; + + for (count = 0; count < len && str[count] != '\0'; count++) { + if (strchr (accept, str[count]) == NULL) + break; + } + return count; +} + int double_quote_str (void *ctx, const char *str, char **buf, size_t *len) diff --git a/util/string-util.h b/util/string-util.h index 4fc7942..b46f981 100644 --- a/util/string-util.h +++ b/util/string-util.h @@ -19,6 +19,11 @@ char *strtok_len (char *s, const char *delim, size_t *len); +/* like strspn, but consider at most `n' characters of 's'. `accept' + * must be null terminated; `s' may be null terminated. + */ +size_t strnspn (const char *s, size_t n, const char *accept); + /* Copy str to dest, surrounding with double quotes. * Any internal double-quotes are doubled, i.e. a"b -> "a""b" * -- 1.7.10.4