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diff --git a/Shared/PostList/PostListModel.swift b/Shared/PostList/PostListModel.swift
index e6464e4..80fb1b5 100644
--- a/Shared/PostList/PostListModel.swift
+++ b/Shared/PostList/PostListModel.swift
@@ -1,21 +1,62 @@
import SwiftUI
import CoreData
class PostListModel: ObservableObject {
func remove(_ post: WFAPost) {
LocalStorageManager.persistentContainer.viewContext.delete(post)
LocalStorageManager().saveContext()
}
func purgePublishedPosts() {
let fetchRequest: NSFetchRequest<NSFetchRequestResult> = NSFetchRequest(entityName: "WFAPost")
fetchRequest.predicate = NSPredicate(format: "status != %i", 0)
let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
do {
try LocalStorageManager.persistentContainer.viewContext.executeAndMergeChanges(using: deleteRequest)
} catch {
print("Error: Failed to purge cached posts.")
}
}
+
+ func getBodyPreview(of post: WFAPost) -> String {
+ var elidedPostBody: String = ""
+
+ // Strip any markdown from the post body.
+ let strippedPostBody = stripMarkdown(from: post.body)
+
+ // Get the first 80 characters.
+ let firstEightyChars = String(strippedPostBody.prefix(80))
+
+ // Extract lede from post.
+ elidedPostBody = extractLede(from: firstEightyChars)
+
+ return elidedPostBody
+ }
+}
+
+private extension PostListModel {
+
+ func stripMarkdown(from string: String) -> String {
+ return string
+ }
+
+ func extractLede(from string: String) -> String {
+ let terminatingCharacters = CharacterSet(charactersIn: ".。?").union(.newlines)
+
+ var lede: String
+
+ let sentences = string.components(separatedBy: terminatingCharacters)
+ let firstSentence = sentences.filter { !$0.isEmpty }[0]
+
+ if firstSentence == string {
+ let endOfStringIndex = string.lastIndex(of: " ")
+ lede = String(string[..<(endOfStringIndex ?? string.index(string.endIndex, offsetBy: -2))]) + "…"
+ } else {
+ lede = firstSentence
+ }
+
+ return lede
+ }
}
+

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