mirror of
https://github.com/zxing/zxing.git
synced 2024-11-11 05:24:06 -08:00
7616c4d06d
git-svn-id: https://zxing.googlecode.com/svn/trunk@2558 59b500cc-1b3d-0410-9834-0bbf25fbcc57
87 lines
2.2 KiB
C#
Executable file
87 lines
2.2 KiB
C#
Executable file
using System;
|
|
using System.Text.RegularExpressions;
|
|
|
|
/*
|
|
* Copyright 2008 ZXing authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
namespace com.google.zxing.client.result
|
|
{
|
|
|
|
using Result = com.google.zxing.Result;
|
|
|
|
|
|
/// <summary>
|
|
/// Parses a "geo:" URI result, which specifies a location on the surface of
|
|
/// the Earth as well as an optional altitude above the surface. See
|
|
/// <a href="http://tools.ietf.org/html/draft-mayrhofer-geo-uri-00">
|
|
/// http://tools.ietf.org/html/draft-mayrhofer-geo-uri-00</a>.
|
|
///
|
|
/// @author Sean Owen
|
|
/// </summary>
|
|
public sealed class GeoResultParser : ResultParser
|
|
{
|
|
|
|
private static readonly string GEO_URL_PATTERN = "geo:([\\-0-9.]+),([\\-0-9.]+)(?:,([\\-0-9.]+))?(?:\\?(.*))?";
|
|
|
|
public override ParsedResult parse(Result result)
|
|
{
|
|
string rawText = getMassagedText(result);
|
|
|
|
Match matcher = Regex.Match(rawText,GEO_URL_PATTERN,RegexOptions.IgnoreCase);
|
|
if (!matcher.Success)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
string query = matcher.Groups[4].Value;
|
|
|
|
double latitude;
|
|
double longitude;
|
|
double altitude;
|
|
try
|
|
{
|
|
latitude = Convert.ToDouble(matcher.Groups[1].Value);
|
|
if (latitude > 90.0 || latitude < -90.0)
|
|
{
|
|
return null;
|
|
}
|
|
longitude = Convert.ToDouble(matcher.Groups[2].Value);
|
|
if (longitude > 180.0 || longitude < -180.0)
|
|
{
|
|
return null;
|
|
}
|
|
if (matcher.Groups[3].Value == null)
|
|
{
|
|
altitude = 0.0;
|
|
}
|
|
else
|
|
{
|
|
altitude = Convert.ToDouble(matcher.Groups[3].Value);
|
|
if (altitude < 0.0)
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
catch (FormatException nfe)
|
|
{
|
|
return null;
|
|
}
|
|
return new GeoParsedResult(latitude, longitude, altitude, query);
|
|
}
|
|
|
|
}
|
|
} |