100 lines
3.0 KiB
C#
100 lines
3.0 KiB
C#
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/* Prescription.cs
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* part of zaaReloaded2
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*
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* Copyright 2015 Daniel Kraus
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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;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace zaaReloaded2.Medication
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{
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/// <summary>
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/// Represents a prescription
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/// </summary>
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public class Prescription
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{
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#region Factory
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/// <summary>
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/// Creates a new Prescription object by parsing a line (e.g.,
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/// from a physician's letter).
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/// </summary>
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/// <param name="line">Line to parse</param>
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/// <returns>Prescription created from the <paramref name="Line"/></returns>
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public static Prescription FromLine(string line)
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{
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// Replace any runs of whitespace with a single space
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// (from http://stackoverflow.com/a/206946/270712)
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line = Regex.Replace(line, @"\s+", " ");
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Match m = lineRegex.Match(line);
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int n = m.Groups[DOSING_GROUP].Captures.Count;
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return new Prescription(
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m.Groups["drug"].Value,
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n > 0 ? m.Groups[DOSING_GROUP].Captures[0].Value : String.Empty,
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n > 1 ? m.Groups[DOSING_GROUP].Captures[1].Value : String.Empty,
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n > 2 ? m.Groups[DOSING_GROUP].Captures[2].Value : String.Empty,
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n > 3 ? m.Groups[DOSING_GROUP].Captures[3].Value : String.Empty
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);
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}
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#endregion
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#region Properties
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public string Drug { get; set; }
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public string Morning { get; set; }
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public string Noon { get; set; }
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public string Evening { get; set; }
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public string Night { get; set; }
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#endregion
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#region Constructor
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public Prescription() { }
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public Prescription(string drug, string morning, string noon,
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string evening, string night)
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{
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Drug = drug;
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Morning = morning;
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Noon = noon;
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Evening = evening;
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Night = night;
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}
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#endregion
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#region Fields
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private const string DOSING_GROUP = "dosing";
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private const string DOSING = @"(\d{1,3}((\s1)?/[234])?|[\u00bd\u2153\u00bc])";
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private const string SPACER = @"\s*[-\u2012\u2013\u2014]+\s*";
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private static readonly Regex lineRegex = new Regex(
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@"(?<drug>.+?)\s(?<dosing>" + DOSING +
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@")(\s?[-\u2012\u2013\u2014]+\s?(?<dosing>" + DOSING + @")){1,3}");
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#endregion
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}
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}
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