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- using System;
- using System.Collections.Generic;
- using System.IO;
- using System.Linq;
- using System.Text;
- using System.Text.Json;
- using System.Xml;
- using System.Xml.Serialization;
- namespace PSDText
- {
- public class PSDText
- {
- private readonly string _xmlData;
- private readonly XmlNamespaceManager _ns = new(new NameTable());
- public List<TextData> ExtractedStrings;
- private static string Readxmpmeta(string path)
- {
- var sb = new StringBuilder(1000);
- using (var sr = new StreamReader(path))
- {
- var read = false;
- while (true)
- {
- var line = sr.ReadLine();
- if (string.IsNullOrWhiteSpace(line))
- return sb.ToString();
- if (line.StartsWith("<x:xmpmeta"))
- read = true;
- if (read) sb.Append(line);
- if (line.StartsWith("</x:xmpmeta>"))
- break;
- }
- }
- return sb.ToString();
- }
- private void AddXMLNamespaces()
- {
- _ns.AddNamespace("x", "adobe:ns:meta/");
- _ns.AddNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
- _ns.AddNamespace("photoshop", "http://ns.adobe.com/photoshop/1.0/");
- }
- private XmlDocument ReadXML()
- {
- var xml = new XmlDocument();
- using (var sr = new StringReader(_xmlData))
- using (var reader = XmlReader.Create(sr))
- {
- xml.Load(reader);
- }
- return xml;
- }
- private List<TextData> GetTextData()
- {
- var xml = ReadXML();
- var data = new List<TextData>();
- var textNodes =
- xml.SelectNodes("/x:xmpmeta/rdf:RDF/rdf:Description/photoshop:TextLayers/rdf:Bag/rdf:li", _ns);
- foreach (XmlNode textNode in textNodes)
- {
- var name = textNode.SelectSingleNode("./photoshop:LayerName", _ns)?.InnerText;
- if (string.IsNullOrWhiteSpace(name))
- continue;
- var text = textNode.SelectSingleNode("./photoshop:LayerText", _ns)?.InnerText;
- if (string.IsNullOrWhiteSpace(text))
- continue;
- data.Add(new TextData { Name = name, Text = text });
- }
- return data;
- }
- public PSDText(string path)
- {
- if (!File.Exists(path))
- throw new FileNotFoundException($"File {path} doesn't exist!");
- _xmlData = Readxmpmeta(path);
- if (string.IsNullOrWhiteSpace(_xmlData))
- throw new Exception("No data was read!");
- AddXMLNamespaces();
- ExtractedStrings = GetTextData();
- if (!ExtractedStrings.Any())
- throw new Exception("Nothing was read from XML!");
- }
- /// <summary>
- /// Serializes text layers as XML.
- /// </summary>
- /// <param name="path">Output XML path.</param>
- public void SaveAsXML(string path)
- {
- if (string.IsNullOrWhiteSpace(path))
- throw new ArgumentNullException(nameof(path));
- var xmlSerializer = new XmlSerializer(typeof(List<TextData>));
- using var fs = File.OpenWrite(path);
- xmlSerializer.Serialize(fs, ExtractedStrings);
- }
- /// <summary>
- /// Serializes text layers as JSON.
- /// </summary>
- /// <param name="path">Output JSON path.</param>
- public void SaveAsJSON(string path)
- {
- if (string.IsNullOrWhiteSpace(path))
- throw new ArgumentNullException(nameof(path));
- using var fs = File.OpenWrite(path);
- JsonSerializer.Serialize(fs, ExtractedStrings, typeof(List<TextData>));
- }
- }
- }
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