211 lines
6.6 KiB
C#
Executable File
211 lines
6.6 KiB
C#
Executable File
/* 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 Static methods
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/// <summary>
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/// Determines whether a line contains prescriptions.
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/// </summary>
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/// <param name="line">Line to inspect.</param>
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/// <returns>True if the line contains prescriptions.</returns>
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public static bool IsPrescriptionLine(string line)
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{
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return lineRegex.IsMatch(line);
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}
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#endregion
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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[DOSE_GROUP].Captures.Count;
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return new Prescription(
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spaceRegex.Replace(m.Groups["drug"].Value, " "),
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n > 0 ? m.Groups[DOSE_GROUP].Captures[0].Value : String.Empty,
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n > 1 ? m.Groups[DOSE_GROUP].Captures[1].Value : String.Empty,
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n > 2 ? m.Groups[DOSE_GROUP].Captures[2].Value : String.Empty,
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n > 3 ? m.Groups[DOSE_GROUP].Captures[3].Value : String.Empty,
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m.Groups["comment"].Value
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);
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}
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/// <summary>
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/// Extracts several prescriptions from a given line.
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/// </summary>
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/// <param name="line">Line that contains several prescriptions.</param>
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/// <returns>Enumerable with <see cref="Prescription"/>s.</returns>
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public static IList<Prescription> ManyFromLine(string line)
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{
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// line = Regex.Replace(line, @"\s+", " ");
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MatchCollection mc = lineRegex.Matches(line);
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List<Prescription> list = new List<Prescription>();
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foreach (Match m in mc)
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{
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int n = m.Groups[DOSE_GROUP].Captures.Count;
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list.Add(new Prescription(
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spaceRegex.Replace(m.Groups["drug"].Value, " "),
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n > 0 ? m.Groups[DOSE_GROUP].Captures[0].Value : String.Empty,
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n > 1 ? m.Groups[DOSE_GROUP].Captures[1].Value : String.Empty,
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n > 2 ? m.Groups[DOSE_GROUP].Captures[2].Value : String.Empty,
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n > 3 ? m.Groups[DOSE_GROUP].Captures[3].Value : String.Empty,
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m.Groups["comment"].Value
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)
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);
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}
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return list;
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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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public string Comment { get; set; }
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#endregion
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#region Overrides
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public override string ToString()
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{
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string s = Drug + "\t";
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if (!String.IsNullOrEmpty(Morning))
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{
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s += Morning;
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}
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else
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{
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if (!(String.IsNullOrEmpty(Noon) && String.IsNullOrEmpty(Evening) &&
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String.IsNullOrEmpty(Night)))
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{
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s += "0";
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}
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}
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if (!String.IsNullOrEmpty(Noon))
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{
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s += "-" + Noon;
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}
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else
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{
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if (!(String.IsNullOrEmpty(Evening) && String.IsNullOrEmpty(Night)))
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{
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s += "-0";
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}
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}
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if (!String.IsNullOrEmpty(Evening))
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{
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s += "-" + Evening;
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}
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else
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{
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if (!String.IsNullOrEmpty(Night))
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{
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s += "-0";
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}
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}
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if (!String.IsNullOrEmpty(Night))
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{
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s += "-" + Night;
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}
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if (!String.IsNullOrEmpty(Comment))
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{
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s += " " + Comment.Trim();
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}
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return s;
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}
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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.Trim();
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Morning = morning.Trim();
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Noon = noon.Trim();
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Evening = evening.Trim();
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Night = night.Trim();
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}
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public Prescription(string drug, string morning, string noon,
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string evening, string night, string comment)
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: this(drug, morning, noon, evening, night)
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{
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Comment = comment.Trim();
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}
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#endregion
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#region Fields
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private const string DOSE_GROUP = "dose";
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private const string DOSE = @"(\d\s+1/[234]|[\u00bd\u2153\u00bc]|\d+)";
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private const string SPACER = @"(\s*[-\u2012\u2013\u2014]+\s*)";
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// Enclose entire regular expression in parentheses so we can use it
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// to split a line and capture the delimiter.
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private static readonly Regex lineRegex = new Regex(
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@"((?<drug>[^\t]+)\s+" +
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@"(?<dose>" + DOSE + @")" + SPACER +
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@"(?<dose>" + DOSE + @")" + SPACER +
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@"(?<dose>" + DOSE + @")" +
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@"(" + SPACER + @"(?<dose>" + DOSE + @"))?" +
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@"( +(?<comment>[^\t]+))?\s*)");
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private static readonly Regex spaceRegex = new Regex(@"\s+");
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#endregion
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}
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}
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