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7616c4d06d
git-svn-id: https://zxing.googlecode.com/svn/trunk@2558 59b500cc-1b3d-0410-9834-0bbf25fbcc57
62 lines
2.1 KiB
C#
Executable file
62 lines
2.1 KiB
C#
Executable file
/*
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* Copyright 2007 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System.Text.RegularExpressions;
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namespace com.google.zxing.client.result
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{
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using Result = com.google.zxing.Result;
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/// <summary>
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/// Tries to parse results that are a URI of some kind.
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///
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/// @author Sean Owen
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/// </summary>
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public sealed class URIResultParser : ResultParser
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{
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private const string ALPHANUM_PART = "[a-zA-Z0-9\\-]";
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private static readonly string URL_WITH_PROTOCOL_PATTERN = "[a-zA-Z0-9]{2,}:";
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private static readonly string URL_WITHOUT_PROTOCOL_PATTERN = '(' + ALPHANUM_PART + "+\\.)+" + ALPHANUM_PART + "{2,}" + "(:\\d{1,5})?" + "(/|\\?|$)"; // query, path or nothing - maybe port - host name elements
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public override ParsedResult parse(Result result)
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{
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string rawText = getMassagedText(result);
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// We specifically handle the odd "URL" scheme here for simplicity and add "URI" for fun
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// Assume anything starting this way really means to be a URI
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if (rawText.StartsWith("URL:") || rawText.StartsWith("URI:"))
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{
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return new URIParsedResult(rawText.Substring(4).Trim(), null);
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}
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rawText = rawText.Trim();
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return isBasicallyValidURI(rawText) ? new URIParsedResult(rawText, null) : null;
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}
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internal static bool isBasicallyValidURI(string uri)
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{
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Match m = Regex.Match(uri,URL_WITH_PROTOCOL_PATTERN) ;
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if (m.Success && m.Index == 0) // match at start only
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{
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return true;
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}
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m = Regex.Match(uri,URL_WITHOUT_PROTOCOL_PATTERN);
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return m.Success && m.Index == 0;
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}
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}
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} |