Return-Path: X-Original-To: netmod@ietfa.amsl.com Delivered-To: netmod@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CAAB91200F9 for ; Wed, 12 Jun 2019 02:53:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.501 X-Spam-Level: X-Spam-Status: No, score=-14.501 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=f1Hb4d5f; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=Dy4xrgzI Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id V4NHHq2LQspc for ; Wed, 12 Jun 2019 02:53:06 -0700 (PDT) Received: from rcdn-iport-6.cisco.com (rcdn-iport-6.cisco.com [173.37.86.77]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 78B481200B6 for ; Wed, 12 Jun 2019 02:53:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5162; q=dns/txt; s=iport; t=1560333186; x=1561542786; h=from:to:subject:date:message-id:references:in-reply-to: content-transfer-encoding:mime-version; bh=z/uHHI7kPnRSFnAYIBsZ/xYNyFJ9QSYxXP38mYIJyQ4=; b=f1Hb4d5f8blD93gSOPO750pYDO5kXpmcFVoEQs0BlLqsKo4QmqHhYQv0 xhLU5V0IDfEqCFUnC6/uBLQcYLH7y5SUdTJyTeajyAgIldoDC58AY9qgv 0KWcYj/ZKv7y9sdONWrLYpHvYIDG61vr8rJzA20rdqaAG9f3c2iM1boA5 k=; IronPort-PHdr: =?us-ascii?q?9a23=3AEGreyBK4S3F0h/oRkNmcpTVXNCE6p7X5OBIU4Z?= =?us-ascii?q?M7irVIN76u5InmIFeBvad2lFGcW4Ld5roEkOfQv636EU04qZea+DFnEtRXUg?= =?us-ascii?q?Mdz8AfngguGsmAXFfkLfr2aCoSF8VZX1gj9Ha+YgBY?= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0ATAABvygBd/49dJa1lGgEBAQEBAgE?= =?us-ascii?q?BAQEHAgEBAQGBUwMBAQEBCwGBPVADalUgBAsoCoQLg0cDjmGCV5czgS6BJAN?= =?us-ascii?q?UCQEBAQwBARgLCgIBAYN6RgIXgi0jNgcOAQMBAQQBAQIBBG0cDIVKAQEBAQI?= =?us-ascii?q?BAQEQEREMAQEsDAQHBAIBCBEEAQEBAgImAgICJQsVCAgCBAESCBMHgwGBagM?= =?us-ascii?q?ODwECDJ0tAoE4iF9xgTGCeQEBBYUDGIIPCYEMKAGLXBeBQD+BEUaCTD6CVgs?= =?us-ascii?q?BAQKBYYMIMoImjjCaKmoJAoIQhkeNHoMOlBiNF4cXjzACBAIEBQIOAQEFgVY?= =?us-ascii?q?FLIFYcBU7gmwJggaDcIUUhT9ygSmNSQGBIAEB?= X-IronPort-AV: E=Sophos;i="5.63,365,1557187200"; d="scan'208";a="573727822" Received: from rcdn-core-7.cisco.com ([173.37.93.143]) by rcdn-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 12 Jun 2019 09:53:04 +0000 Received: from XCH-ALN-015.cisco.com (xch-aln-015.cisco.com [173.36.7.25]) by rcdn-core-7.cisco.com (8.15.2/8.15.2) with ESMTPS id x5C9r4K3003385 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 12 Jun 2019 09:53:04 GMT Received: from xhs-aln-002.cisco.com (173.37.135.119) by XCH-ALN-015.cisco.com (173.36.7.25) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 12 Jun 2019 04:53:03 -0500 Received: from xhs-rcd-003.cisco.com (173.37.227.248) by xhs-aln-002.cisco.com (173.37.135.119) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 12 Jun 2019 04:53:02 -0500 Received: from NAM05-DM3-obe.outbound.protection.outlook.com (72.163.14.9) by xhs-rcd-003.cisco.com (173.37.227.248) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Wed, 12 Jun 2019 04:53:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.onmicrosoft.com; s=selector2-cisco-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=z/uHHI7kPnRSFnAYIBsZ/xYNyFJ9QSYxXP38mYIJyQ4=; b=Dy4xrgzIDR666bHWNbqhbf5ZEIohhBWROiSVOURpTC0EG+oXk6ceayRCs6GhyhDA/3bp0qriTVKS/d0tzvc71Fgc0CUQTVtJDMM8d9gLTMQd6jMd6qulhoOLyvMJ+CWu/vo2ehbN9WsfPG00CCDrCJIqx5S/Vkv1S3cFNPkPTd4= Received: from BYAPR11MB2631.namprd11.prod.outlook.com (52.135.227.28) by BYAPR11MB2776.namprd11.prod.outlook.com (52.135.228.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1965.15; Wed, 12 Jun 2019 09:53:01 +0000 Received: from BYAPR11MB2631.namprd11.prod.outlook.com ([fe80::d837:c1dd:cdb1:bb78]) by BYAPR11MB2631.namprd11.prod.outlook.com ([fe80::d837:c1dd:cdb1:bb78%7]) with mapi id 15.20.1965.017; Wed, 12 Jun 2019 09:53:01 +0000 From: "Rob Wilton (rwilton)" To: Ladislav Lhotka , NETMOD WG Thread-Topic: [netmod] regular expression flavours (again) Thread-Index: AQHVIPUyXZrpgNnnhkC8kWX+UPfSraaXt5pggAAL+4CAAACa4A== Date: Wed, 12 Jun 2019 09:53:01 +0000 Message-ID: References: <291106e34498ebd68f26bf9ff9b679dd5bd8f0cd.camel@nic.cz> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=rwilton@cisco.com; x-originating-ip: [173.38.220.62] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 68bacf74-82aa-45a8-4c79-08d6ef1bc1c0 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:BYAPR11MB2776; x-ms-traffictypediagnostic: BYAPR11MB2776: x-ms-exchange-purlcount: 4 x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-forefront-prvs: 0066D63CE6 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(979002)(346002)(136003)(366004)(376002)(39860400002)(396003)(478694002)(13464003)(189003)(199004)(52314003)(6246003)(6436002)(446003)(7736002)(561944003)(53936002)(66556008)(11346002)(55016002)(8676002)(66476007)(64756008)(186003)(110136005)(3846002)(66446008)(102836004)(66946007)(229853002)(76176011)(81156014)(6116002)(76116006)(73956011)(486006)(9686003)(316002)(99286004)(6306002)(2906002)(25786009)(81166006)(476003)(26005)(53546011)(6506007)(19273905006)(305945005)(7696005)(86362001)(68736007)(33656002)(66066001)(74316002)(478600001)(966005)(52536014)(14454004)(5660300002)(71200400001)(8936002)(256004)(71190400001)(969003)(989001)(999001)(1009001)(1019001); DIR:OUT; SFP:1101; SCL:1; SRVR:BYAPR11MB2776; H:BYAPR11MB2631.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: cisco.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 1iypLZJhX4JpEGLC+xdtIAjlL9eIwqmruHLU7XgRW/UmRyAKdDaKwDG90FgSOHAwP72ARzCAIkexb4psai73sF5T/kw2IxtcUdUj/gtbrGQV34sS4bJKQFnnZK3CZimWfig9aQsdhIYpR3Q/bb++oTOW33IlXhqt9GsTCI3YzwUGWMv7zzmZ+k/H4IgSw7SsnSKNRM2Sscv8F4uJR/tEr2B8nzXBnFBqdGUinby5kcx1I4ypdS/80VV0aMdKawlSuXRuXYBMdEF5W3ZEkZBHrT6bdGbBehXPApXfpJNjW8leSzDENO3u+JaRUIG8o9A7qjR8UOA3FamDYOLo0/tkiN9RVgq80woBwlfiUzHLR6vyGCzoq3a49+y7JXvBziTugd5RbZhG04DnUPOVwfG2NJjrC76t2nDstPWGUjXWWxQ= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 68bacf74-82aa-45a8-4c79-08d6ef1bc1c0 X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Jun 2019 09:53:01.0745 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: rwilton@cisco.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB2776 X-OriginatorOrg: cisco.com X-Outbound-SMTP-Client: 173.36.7.25, xch-aln-015.cisco.com X-Outbound-Node: rcdn-core-7.cisco.com Archived-At: Subject: Re: [netmod] regular expression flavours (again) X-BeenThere: netmod@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: NETMOD WG list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jun 2019 09:53:09 -0000 SGkgTGFkYSwNCg0KPiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBMYWRpc2xh diBMaG90a2EgPGxob3RrYUBuaWMuY3o+DQo+IFNlbnQ6IDEyIEp1bmUgMjAxOSAxMDo0MA0KPiBU bzogUm9iIFdpbHRvbiAocndpbHRvbikgPHJ3aWx0b25AY2lzY28uY29tPjsgTkVUTU9EIFdHIDxu ZXRtb2RAaWV0Zi5vcmc+DQo+IFN1YmplY3Q6IFJlOiBbbmV0bW9kXSByZWd1bGFyIGV4cHJlc3Np b24gZmxhdm91cnMgKGFnYWluKQ0KPiANCj4gSGkgUm9iLA0KPiANCj4gT24gV2VkLCAyMDE5LTA2 LTEyIGF0IDA5OjI1ICswMDAwLCBSb2IgV2lsdG9uIChyd2lsdG9uKSB3cm90ZToNCj4gPiBIaSBM YWRhLA0KPiA+DQo+ID4gT3BlbkNvbmZpZyBoYXZlIGFscmVhZHkgaW50cm9kdWNlZCBhIG1vZHVs ZSBsZXZlbCBleHRlbnNpb24gc3RhdGVtZW50DQo+ID4gdG8gaW5kaWNhdGUgdGhhdCB0aGVpciBw YXR0ZXJuIHN0YXRlbWVudHMgdXNlIFBPU0lYIHJlZ3VsYXIgZXhwcmVzc2lvbnMuDQo+IA0KPiBX aGF0IEkgbWVhbnQgd2FzIHJhdGhlciBzb21ldGhpbmcgbGlrZQ0KPiANCj4gICAgIHBhdHRlcm4t bGFuZ3VhZ2UgIlBPU0lYIjsNCj4gDQoNCkJ1dCBkZXBlbmRpbmcgb24gaG93IG1hbnkgcGF0dGVy biBsYW5ndWFnZXMgYXJlIHN1cHBvcnRlZCwgd291bGRu4oCZdCB0aGF0IG1ha2UgaW1wbGVtZW50 aW5nIFlBTkcgYSBsb3QgaGFyZGVyLCBzaW5jZSBpbXBsZW1lbnRhdGlvbnMgd291bGQgbmVlZCB0 byBzdXBwb3J0IGFsbCB0aGUgYWxsb3dlZCBwYXR0ZXJuIGxhbmd1YWdlcz8NCg0KQWxzbywgSUlS QywgUE9TSVggcmVnZXggZG9lc24ndCBzdXBwb3J0IHVuaWNvZGUsIHdoaWNoIG1lYW5zIHRoYXQg aXQgaXNuJ3QgbmVjZXNzYXJpbHkgYSBnb29kIGNob2ljZSBmb3IgYSBsYW5ndWFnZSB0aGF0IGRv ZXMgc3VwcG9ydCB1bmljb2RlIHN0cmluZ3MgYnkgZGVmYXVsdC4NCg0KDQo+IHdpdGggdGhlIGRl ZmF1bHQgYmVpbmcgIlhTRCIuIEl0IGNvdWxkIHBvc3NpYmx5IGFsc28gaW5jbHVkZSB5b3VyIHBy b3Bvc2FsDQo+IG9mIFhTRCByZWdleCBzdWJzZXQgKGlzc3VlICMyMSkuDQoNClJlYWxseSBteSBh aW0gd2FzIHRoZSBvdGhlciB3YXkgYXJvdW5kLiAgSS5lLiBoYXZlIGFsbCBZQU5HIHBhdHRlcm4g c3RhdGVtZW50cyBpbiBqdXN0IG9uZSBzaW1wbGUgcmVnZXggbGFuZ3VhZ2UgdGhhdCBjb3VsZCB0 cml2aWFsbHkgYmUgY29udmVydGVkIHRvIHJ1biBvbiBhbnkgY29tbW9uIHJlZ2V4IGVuZ2luZS4N Cg0KDQo+IA0KPiBUaGlzIGNvdWxkIGluIGZhY3QgYmUgYSBnb29kIGNhbmRpZGF0ZSBmb3IgYSBj cml0aWNhbCBleHRlbnNpb24uDQo+IA0KPiA+DQo+ID4gICBleHRlbnNpb24gcmVnZXhwLXBvc2l4 IHsNCj4gPiAgICAgIGRlc2NyaXB0aW9uDQo+ID4gICAgICAgIlRoaXMgZXh0ZW5zaW9uIGluZGlj YXRlcyB0aGF0IHRoZSByZWd1bGFyIGV4cHJlc3Npb25zIGluY2x1ZGVkDQo+ID4gICAgICAgd2l0 aGluIHRoZSBZQU5HIG1vZHVsZSBzcGVjaWZpZWQgYXJlIGNvbmZvcm1hbnQgd2l0aCB0aGUgUE9T SVgNCj4gPiAgICAgICByZWd1bGFyIGV4cHJlc3Npb24gZm9ybWF0IHJhdGhlciB0aGFuIHRoZSBX M0Mgc3RhbmRhcmQgdGhhdCBpcw0KPiA+ICAgICAgIHNwZWNpZmllZCBieSBSRkM2MDIwIGFuZCBS RkM3OTUwLiI7DQo+ID4gICB9DQo+ID4NCj4gPiBEZWZpbmVkIGluDQo+ID4gaHR0cHM6Ly9naXRo dWIuY29tL29wZW5jb25maWcvcHVibGljL2Jsb2IvbWFzdGVyL3JlbGVhc2UvbW9kZWxzL29wZW5j bw0KPiA+IG5maWctZXh0ZW5zaW9ucy55YW5nDQo+ID4NCj4gPiBJIGRvbid0IHRoaW5rIHRoYXQg dGhpcyBzaG91bGQgYmVjb21lIHBhcnQgb2YgdGhlIFlBTkcgc3RhbmRhcmQuDQo+IA0KPiBJIHN1 c3BlY3QgdGhhdCBkZXZlbG9wZXJzIG9mIFlBTkcgdG9vbHMgYXJlIGJlaW5nIHB1c2hlZCBieSB1 c2VycyB0bw0KPiBpbmNsdWRlIHN1cHBvcnQgZm9yIHRoaXMgYW55d2F5LCBzbyBJIGRvbid0IHNl ZSBtdWNoIGJlbmVmaXQgZnJvbSBibG9ja2luZw0KPiBpdC4NCg0KSSBkb24ndCBzZWUgdGhpcyBh cyBibG9ja2luZyBpdCBhdCBhbGwsIGJ1dCByYXRoZXIgdGhhdCBhIHByYWdtYXRpYyBjb21tb24g c29sdXRpb24gYWxyZWFkeSBleGlzdHMgd2l0aG91dCByZXF1aXJpbmcgYW55IHN0YW5kYXJkaXph dGlvbiB3b3JrLg0KDQpUaGFua3MsDQpSb2INCg0KDQo+IA0KPiBMYWRhDQo+IA0KPiA+DQo+ID4g VGhhbmtzLA0KPiA+IFJvYg0KPiA+DQo+ID4NCj4gPiA+IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0t LS0tDQo+ID4gPiBGcm9tOiBuZXRtb2QgPG5ldG1vZC1ib3VuY2VzQGlldGYub3JnPiBPbiBCZWhh bGYgT2YgTGFkaXNsYXYgTGhvdGthDQo+ID4gPiBTZW50OiAxMiBKdW5lIDIwMTkgMDk6MDINCj4g PiA+IFRvOiBORVRNT0QgV0cgPG5ldG1vZEBpZXRmLm9yZz4NCj4gPiA+IFN1YmplY3Q6IFtuZXRt b2RdIHJlZ3VsYXIgZXhwcmVzc2lvbiBmbGF2b3VycyAoYWdhaW4pDQo+ID4gPg0KPiA+ID4gSGks DQo+ID4gPg0KPiA+ID4gSSB0aGluayBpdCBpcyB2ZXJ5IHVuZm9ydHVuYXRlIHRoYXQgT3BlbkNv bmZpZyBmb2xrcyB1c2UgUE9TSVgNCj4gPiA+IHJlZ3VsYXIgZXhwcmVzc2lvbnMgaW5zdGVhZCBv ZiBYU0QuIFRoaXMgb2YgY291cnNlIGNhdXNlcyBjb25mdXNpb24sDQo+ID4gPiBzZWUgZS5nLiB0 aGlzDQo+ID4gPiBQUjoNCj4gPiA+DQo+ID4gPiBodHRwczovL2dpdGh1Yi5jb20vQ1otTklDL3lh bmdzb24vcHVsbC8yMg0KPiA+ID4NCj4gPiA+IEdpdmVuIHRoZSBwb3B1bGFyaXR5IG9mIE9wZW5D b25maWcgbW9kZWxzLCBpdCBzZWVtcyB0byBtZSB0aGF0IGl0DQo+ID4gPiB3b3VsZCBiZSBiZXR0 ZXIgaWYgWUFORyBzb21laG93IGFjY29tb2RhdGVzIHN1Y2ggKGxhcmdlbHkgY29zbWV0aWMpDQo+ IGRpZmZlcmVuY2VzLg0KPiA+ID4NCj4gPiA+IE9uZSBvcHRpb24gd291bGQgYmUgdGhhdCBlYWNo IFlBTkcgbW9kdWxlIGRlY2xhcmVzIHRoZSByZWdleCBmbGF2b3VyDQo+ID4gPiB1c2VkIGluIGl0 cyBwYXR0ZXJucy4gWWVzLCBpdCBpcyBhIGNvbXBsaWNhdGlvbiwgYnV0IGhhdmluZyBzZXBhcmF0 ZQ0KPiA+ID4gZm9ya3Mgb2YgWUFORyBpcyBtdWNoIHdvcnNlLg0KPiA+ID4NCj4gPiA+IElTTyBT Y2hlbWF0cm9uIGFkb3B0ZWQgYSBzaW1pbGFyIGFwcHJvYWNoIHdpdGggInF1ZXJ5IGxhbmd1YWdl DQo+IGJpbmRpbmciDQo+ID4gPiB0aGF0IGNhbiBiZSBkZWNsYXJlZCB3aXRoIHRoZSBzY2hlbWEg ZWxlbWVudCwgZm9yIGV4YW1wbGUNCj4gPiA+DQo+ID4gPiA8c2NoZW1hIHhtbG5zPSJodHRwOi8v cHVybC5vY2xjLm9yZy9kc2RsL3NjaGVtYXRyb24iDQo+ID4gPiBxdWVyeUJpbmRpbmc9ImV4c2x0 Ij4NCj4gPiA+DQo+ID4gPiBBbnkgdGhvdWdodHMgb24gdGhpcz8NCj4gPiA+DQo+ID4gPiBMYWRh DQo+ID4gPg0KPiA+ID4gLS0NCj4gPiA+IExhZGlzbGF2IExob3RrYQ0KPiA+ID4gSGVhZCwgQ1ou TklDIExhYnMNCj4gPiA+IFBHUCBLZXkgSUQ6IDB4QjhGOTJCMDhBOUY3NkM2Nw0KPiA+ID4NCj4g PiA+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+ID4g PiBuZXRtb2QgbWFpbGluZyBsaXN0DQo+ID4gPiBuZXRtb2RAaWV0Zi5vcmcNCj4gPiA+IGh0dHBz Oi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8vbmV0bW9kDQo+IC0tDQo+IExhZGlzbGF2 IExob3RrYQ0KPiBIZWFkLCBDWi5OSUMgTGFicw0KPiBQR1AgS2V5IElEOiAweEI4RjkyQjA4QTlG NzZDNjcNCg0K